diff --git a/.gitignore b/.gitignore
index 31c9fc1..503b769 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,7 +10,10 @@
 expected
 teststore1
 teststore2
+dev1
+dev2
 derby.log
 hadoop-conf-tmp
 metastore_db
 teststore
+output
diff --git a/algebricks/algebricks-common/pom.xml b/algebricks/algebricks-common/pom.xml
index 0e840fa..87f7004 100644
--- a/algebricks/algebricks-common/pom.xml
+++ b/algebricks/algebricks-common/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>algebricks-common</artifactId>
@@ -6,7 +20,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>algebricks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -27,7 +41,7 @@
   <dependency>
   	<groupId>edu.uci.ics.hyracks</groupId>
   	<artifactId>hyracks-api</artifactId>
-  	<version>0.2.6-SNAPSHOT</version>
+  	<version>0.2.7-SNAPSHOT</version>
   </dependency>
   </dependencies>
 </project>
diff --git a/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/constraints/AlgebricksAbsolutePartitionConstraint.java b/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/constraints/AlgebricksAbsolutePartitionConstraint.java
index 924d85b..39f3550 100644
--- a/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/constraints/AlgebricksAbsolutePartitionConstraint.java
+++ b/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/constraints/AlgebricksAbsolutePartitionConstraint.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/constraints/AlgebricksCountPartitionConstraint.java b/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/constraints/AlgebricksCountPartitionConstraint.java
index 99091aa..dd62f47 100644
--- a/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/constraints/AlgebricksCountPartitionConstraint.java
+++ b/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/constraints/AlgebricksCountPartitionConstraint.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/constraints/AlgebricksPartitionConstraint.java b/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/constraints/AlgebricksPartitionConstraint.java
index 929479c..a458451 100644
--- a/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/constraints/AlgebricksPartitionConstraint.java
+++ b/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/constraints/AlgebricksPartitionConstraint.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/constraints/AlgebricksPartitionConstraintHelper.java b/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/constraints/AlgebricksPartitionConstraintHelper.java
index 54cdb59..8ad27b1 100644
--- a/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/constraints/AlgebricksPartitionConstraintHelper.java
+++ b/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/constraints/AlgebricksPartitionConstraintHelper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/exceptions/AlgebricksException.java b/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/exceptions/AlgebricksException.java
index b55a4b3..6f39167 100644
--- a/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/exceptions/AlgebricksException.java
+++ b/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/exceptions/AlgebricksException.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/exceptions/NotImplementedException.java b/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/exceptions/NotImplementedException.java
index cb9e054..cc0c975 100644
--- a/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/exceptions/NotImplementedException.java
+++ b/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/exceptions/NotImplementedException.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/utils/ListSet.java b/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/utils/ListSet.java
index acf1e6f..f4ed6c1 100644
--- a/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/utils/ListSet.java
+++ b/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/utils/ListSet.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.common.utils;
 
 import java.util.ArrayList;
diff --git a/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/utils/Pair.java b/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/utils/Pair.java
index ddd56da..e8ba583 100644
--- a/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/utils/Pair.java
+++ b/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/utils/Pair.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/utils/Triple.java b/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/utils/Triple.java
index 0361152..fe76c4a 100644
--- a/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/utils/Triple.java
+++ b/algebricks/algebricks-common/src/main/java/edu/uci/ics/hyracks/algebricks/common/utils/Triple.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-compiler/pom.xml b/algebricks/algebricks-compiler/pom.xml
index 2f78812..dbacd2f 100644
--- a/algebricks/algebricks-compiler/pom.xml
+++ b/algebricks/algebricks-compiler/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>algebricks-compiler</artifactId>
@@ -6,7 +20,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>algebricks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -27,12 +41,12 @@
   <dependency>
   	<groupId>edu.uci.ics.hyracks</groupId>
   	<artifactId>algebricks-rewriter</artifactId>
-  	<version>0.2.6-SNAPSHOT</version>
+  	<version>0.2.7-SNAPSHOT</version>
   </dependency>
   <dependency>
   	<groupId>edu.uci.ics.hyracks</groupId>
   	<artifactId>algebricks-core</artifactId>
-  	<version>0.2.6-SNAPSHOT</version>
+  	<version>0.2.7-SNAPSHOT</version>
   </dependency>
   </dependencies>
 </project>
diff --git a/algebricks/algebricks-compiler/src/main/java/edu/uci/ics/hyracks/algebricks/compiler/api/AbstractCompilerFactoryBuilder.java b/algebricks/algebricks-compiler/src/main/java/edu/uci/ics/hyracks/algebricks/compiler/api/AbstractCompilerFactoryBuilder.java
index e0ee1f0..3d92d68 100644
--- a/algebricks/algebricks-compiler/src/main/java/edu/uci/ics/hyracks/algebricks/compiler/api/AbstractCompilerFactoryBuilder.java
+++ b/algebricks/algebricks-compiler/src/main/java/edu/uci/ics/hyracks/algebricks/compiler/api/AbstractCompilerFactoryBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -62,7 +62,6 @@
     protected IMergeAggregationExpressionFactory mergeAggregationExpressionFactory;
     protected PhysicalOptimizationConfig physicalOptimizationConfig = new PhysicalOptimizationConfig();
     protected AlgebricksPartitionConstraint clusterLocations;
-    protected int frameSize = -1;
 
     public abstract ICompilerFactory create();
 
@@ -195,14 +194,6 @@
         return normalizedKeyComputerFactoryProvider;
     }
 
-    public void setFrameSize(int frameSize) {
-        this.frameSize = frameSize;
-    }
-
-    public int getFrameSize() {
-        return frameSize;
-    }
-
     public IPartialAggregationTypeComputer getPartialAggregationTypeComputer() {
         return partialAggregationTypeComputer;
     }
diff --git a/algebricks/algebricks-compiler/src/main/java/edu/uci/ics/hyracks/algebricks/compiler/api/HeuristicCompilerFactoryBuilder.java b/algebricks/algebricks-compiler/src/main/java/edu/uci/ics/hyracks/algebricks/compiler/api/HeuristicCompilerFactoryBuilder.java
index 1c62307..39587b9 100644
--- a/algebricks/algebricks-compiler/src/main/java/edu/uci/ics/hyracks/algebricks/compiler/api/HeuristicCompilerFactoryBuilder.java
+++ b/algebricks/algebricks-compiler/src/main/java/edu/uci/ics/hyracks/algebricks/compiler/api/HeuristicCompilerFactoryBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -42,12 +42,12 @@
         }
 
         @Override
-        public IOptimizationContext createOptimizationContext(int varCounter, int frameSize,
+        public IOptimizationContext createOptimizationContext(int varCounter,
                 IExpressionEvalSizeComputer expressionEvalSizeComputer,
                 IMergeAggregationExpressionFactory mergeAggregationExpressionFactory,
                 IExpressionTypeComputer expressionTypeComputer, INullableTypeComputer nullableTypeComputer,
                 PhysicalOptimizationConfig physicalOptimizationConfig) {
-            return new AlgebricksOptimizationContext(varCounter, frameSize, expressionEvalSizeComputer,
+            return new AlgebricksOptimizationContext(varCounter, expressionEvalSizeComputer,
                     mergeAggregationExpressionFactory, expressionTypeComputer, nullableTypeComputer,
                     physicalOptimizationConfig);
         }
@@ -69,7 +69,7 @@
             @Override
             public ICompiler createCompiler(final ILogicalPlan plan, final IMetadataProvider<?, ?> metadata,
                     int varCounter) {
-                final IOptimizationContext oc = optCtxFactory.createOptimizationContext(varCounter, frameSize,
+                final IOptimizationContext oc = optCtxFactory.createOptimizationContext(varCounter,
                         expressionEvalSizeComputer, mergeAggregationExpressionFactory, expressionTypeComputer,
                         nullableTypeComputer, physicalOptimizationConfig);
                 oc.setMetadataDeclarations(metadata);
@@ -91,7 +91,9 @@
                                 binaryBooleanInspectorFactory, binaryIntegerInspectorFactory, printerProvider,
                                 nullWriterFactory, normalizedKeyComputerFactoryProvider, expressionRuntimeProvider,
                                 expressionTypeComputer, nullableTypeComputer, oc, expressionEvalSizeComputer,
-                                partialAggregationTypeComputer, predEvaluatorFactoryProvider, frameSize, clusterLocations);
+                                partialAggregationTypeComputer, predEvaluatorFactoryProvider,
+                                physicalOptimizationConfig.getFrameSize(), clusterLocations);
+
                         PlanCompiler pc = new PlanCompiler(context);
                         return pc.compilePlan(plan, null, jobEventListenerFactory);
                     }
diff --git a/algebricks/algebricks-compiler/src/main/java/edu/uci/ics/hyracks/algebricks/compiler/api/ICompiler.java b/algebricks/algebricks-compiler/src/main/java/edu/uci/ics/hyracks/algebricks/compiler/api/ICompiler.java
index 517ca6b..436be40 100644
--- a/algebricks/algebricks-compiler/src/main/java/edu/uci/ics/hyracks/algebricks/compiler/api/ICompiler.java
+++ b/algebricks/algebricks-compiler/src/main/java/edu/uci/ics/hyracks/algebricks/compiler/api/ICompiler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-compiler/src/main/java/edu/uci/ics/hyracks/algebricks/compiler/api/ICompilerFactory.java b/algebricks/algebricks-compiler/src/main/java/edu/uci/ics/hyracks/algebricks/compiler/api/ICompilerFactory.java
index f831e8f..66f3b81 100644
--- a/algebricks/algebricks-compiler/src/main/java/edu/uci/ics/hyracks/algebricks/compiler/api/ICompilerFactory.java
+++ b/algebricks/algebricks-compiler/src/main/java/edu/uci/ics/hyracks/algebricks/compiler/api/ICompilerFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-compiler/src/main/java/edu/uci/ics/hyracks/algebricks/compiler/rewriter/rulecontrollers/PrioritizedRuleController.java b/algebricks/algebricks-compiler/src/main/java/edu/uci/ics/hyracks/algebricks/compiler/rewriter/rulecontrollers/PrioritizedRuleController.java
index 8ba6583..2062c5f 100644
--- a/algebricks/algebricks-compiler/src/main/java/edu/uci/ics/hyracks/algebricks/compiler/rewriter/rulecontrollers/PrioritizedRuleController.java
+++ b/algebricks/algebricks-compiler/src/main/java/edu/uci/ics/hyracks/algebricks/compiler/rewriter/rulecontrollers/PrioritizedRuleController.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-compiler/src/main/java/edu/uci/ics/hyracks/algebricks/compiler/rewriter/rulecontrollers/SequentialFixpointRuleController.java b/algebricks/algebricks-compiler/src/main/java/edu/uci/ics/hyracks/algebricks/compiler/rewriter/rulecontrollers/SequentialFixpointRuleController.java
index 978a647..2f65c8a 100644
--- a/algebricks/algebricks-compiler/src/main/java/edu/uci/ics/hyracks/algebricks/compiler/rewriter/rulecontrollers/SequentialFixpointRuleController.java
+++ b/algebricks/algebricks-compiler/src/main/java/edu/uci/ics/hyracks/algebricks/compiler/rewriter/rulecontrollers/SequentialFixpointRuleController.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-compiler/src/main/java/edu/uci/ics/hyracks/algebricks/compiler/rewriter/rulecontrollers/SequentialOnceRuleController.java b/algebricks/algebricks-compiler/src/main/java/edu/uci/ics/hyracks/algebricks/compiler/rewriter/rulecontrollers/SequentialOnceRuleController.java
index 1e37d140..0f8ec80 100644
--- a/algebricks/algebricks-compiler/src/main/java/edu/uci/ics/hyracks/algebricks/compiler/rewriter/rulecontrollers/SequentialOnceRuleController.java
+++ b/algebricks/algebricks-compiler/src/main/java/edu/uci/ics/hyracks/algebricks/compiler/rewriter/rulecontrollers/SequentialOnceRuleController.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/pom.xml b/algebricks/algebricks-core/pom.xml
index 11b03ee..0fd538e 100644
--- a/algebricks/algebricks-core/pom.xml
+++ b/algebricks/algebricks-core/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>algebricks-core</artifactId>
@@ -6,7 +20,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>algebricks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -27,27 +41,27 @@
   <dependency>
   	<groupId>edu.uci.ics.hyracks</groupId>
   	<artifactId>hyracks-storage-am-btree</artifactId>
-  	<version>0.2.6-SNAPSHOT</version>
+  	<version>0.2.7-SNAPSHOT</version>
   </dependency>
   <dependency>
   	<groupId>edu.uci.ics.hyracks</groupId>
   	<artifactId>hyracks-storage-am-rtree</artifactId>
-  	<version>0.2.6-SNAPSHOT</version>
+  	<version>0.2.7-SNAPSHOT</version>
   </dependency>
   <dependency>
   	<groupId>edu.uci.ics.hyracks</groupId>
   	<artifactId>hyracks-dataflow-std</artifactId>
-  	<version>0.2.6-SNAPSHOT</version>
+  	<version>0.2.7-SNAPSHOT</version>
   </dependency>
   <dependency>
   	<groupId>edu.uci.ics.hyracks</groupId>
   	<artifactId>algebricks-runtime</artifactId>
-  	<version>0.2.6-SNAPSHOT</version>
+  	<version>0.2.7-SNAPSHOT</version>
   </dependency>
   <dependency>
   	<groupId>edu.uci.ics.hyracks</groupId>
   	<artifactId>algebricks-common</artifactId>
-  	<version>0.2.6-SNAPSHOT</version>
+  	<version>0.2.7-SNAPSHOT</version>
   </dependency>
   </dependencies>
 </project>
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/Counter.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/Counter.java
index b27bf84..70819a6 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/Counter.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/Counter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/EquivalenceClass.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/EquivalenceClass.java
index fe3511e..e3eb8d0 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/EquivalenceClass.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/EquivalenceClass.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/IHyracksJobBuilder.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/IHyracksJobBuilder.java
index 4c6e747..4e341e4 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/IHyracksJobBuilder.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/IHyracksJobBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/ILogicalExpression.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/ILogicalExpression.java
index b1a2408..84d7fab 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/ILogicalExpression.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/ILogicalExpression.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/ILogicalOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/ILogicalOperator.java
index 6701385..c11dd80 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/ILogicalOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/ILogicalOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/ILogicalPlan.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/ILogicalPlan.java
index c94a9c1..6db8f8d 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/ILogicalPlan.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/ILogicalPlan.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/ILogicalPlanAndMetadata.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/ILogicalPlanAndMetadata.java
index 1d354de..06f619b 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/ILogicalPlanAndMetadata.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/ILogicalPlanAndMetadata.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/IOptimizationContext.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/IOptimizationContext.java
index 0aa1ff6..8537702 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/IOptimizationContext.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/IOptimizationContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -32,9 +32,6 @@
 
     public abstract int getVarCounter();
 
-    // -1 if unknown
-    public abstract int getFrameSize();
-
     public abstract void setVarCounter(int varCounter);
 
     public abstract LogicalVariable newVar();
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/IPhysicalOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/IPhysicalOperator.java
index 58c2870..f3f9837 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/IPhysicalOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/IPhysicalOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/LogicalExpressionTag.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/LogicalExpressionTag.java
index 166b357..83bc702 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/LogicalExpressionTag.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/LogicalExpressionTag.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/LogicalOperatorTag.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/LogicalOperatorTag.java
index ba51eff..bee4906 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/LogicalOperatorTag.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/LogicalOperatorTag.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/LogicalVariable.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/LogicalVariable.java
index 0a88459..07596b1 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/LogicalVariable.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/LogicalVariable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/OperatorAnnotations.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/OperatorAnnotations.java
index 655645f..16cba67 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/OperatorAnnotations.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/OperatorAnnotations.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.base;
 
 public interface OperatorAnnotations {
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/PhysicalOperatorTag.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/PhysicalOperatorTag.java
index c3a59ea..c9ef2f3 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/PhysicalOperatorTag.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/base/PhysicalOperatorTag.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.base;
 
 public enum PhysicalOperatorTag {
@@ -43,8 +57,8 @@
     INSERT_DELETE,
     INDEX_INSERT_DELETE,
     UPDATE,
-    INVERTED_INDEX_SEARCH,
-    FUZZY_INVERTED_INDEX_SEARCH,
+    SINGLE_PARTITION_INVERTED_INDEX_SEARCH,
+    LENGTH_PARTITIONED_INVERTED_INDEX_SEARCH,
     PARTITIONINGSPLIT,
     EXTENSION_OPERATOR
 }
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/AbstractFunctionCallExpression.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/AbstractFunctionCallExpression.java
index 0d9e763..0c19c79 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/AbstractFunctionCallExpression.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/AbstractFunctionCallExpression.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/AbstractLogicalExpression.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/AbstractLogicalExpression.java
index f9b30cc..abc46c0 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/AbstractLogicalExpression.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/AbstractLogicalExpression.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/AggregateFunctionCallExpression.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/AggregateFunctionCallExpression.java
index a720039..154618b 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/AggregateFunctionCallExpression.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/AggregateFunctionCallExpression.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/BroadcastExpressionAnnotation.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/BroadcastExpressionAnnotation.java
index ff88912..a29bd46 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/BroadcastExpressionAnnotation.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/BroadcastExpressionAnnotation.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/ConstantExpression.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/ConstantExpression.java
index a0b7674..0482133 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/ConstantExpression.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/ConstantExpression.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/ExpressionAnnotationNoCopyImpl.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/ExpressionAnnotationNoCopyImpl.java
index 6870a38..975014d 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/ExpressionAnnotationNoCopyImpl.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/ExpressionAnnotationNoCopyImpl.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IAlgebricksConstantValue.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IAlgebricksConstantValue.java
index b6c7dbd..a12b8f2 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IAlgebricksConstantValue.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IAlgebricksConstantValue.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.expressions;
 
 public interface IAlgebricksConstantValue {
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IExpressionAnnotation.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IExpressionAnnotation.java
index 15e543b..fa2a6f4 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IExpressionAnnotation.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IExpressionAnnotation.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IExpressionEvalSizeComputer.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IExpressionEvalSizeComputer.java
index 623f7bb..24befcc 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IExpressionEvalSizeComputer.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IExpressionEvalSizeComputer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IExpressionRuntimeProvider.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IExpressionRuntimeProvider.java
index 5db1a0d..f44cd29 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IExpressionRuntimeProvider.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IExpressionRuntimeProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IExpressionTypeComputer.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IExpressionTypeComputer.java
index 3057d8a..87c5ade 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IExpressionTypeComputer.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IExpressionTypeComputer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/ILogicalExpressionJobGen.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/ILogicalExpressionJobGen.java
index 8d46662..83e36b2 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/ILogicalExpressionJobGen.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/ILogicalExpressionJobGen.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IMergeAggregationExpressionFactory.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IMergeAggregationExpressionFactory.java
index 04bb824..6e366ff 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IMergeAggregationExpressionFactory.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IMergeAggregationExpressionFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.expressions;
 
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/INullableTypeComputer.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/INullableTypeComputer.java
index 37b6d80..877d363 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/INullableTypeComputer.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/INullableTypeComputer.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.expressions;
 
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IPartialAggregationTypeComputer.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IPartialAggregationTypeComputer.java
index 5921335..4d9fe38 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IPartialAggregationTypeComputer.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IPartialAggregationTypeComputer.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.expressions;
 
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IVariableEvalSizeEnvironment.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IVariableEvalSizeEnvironment.java
index f6799b0..351f4a2 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IVariableEvalSizeEnvironment.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IVariableEvalSizeEnvironment.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IVariableTypeEnvironment.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IVariableTypeEnvironment.java
index 2275227..3ba438a 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IVariableTypeEnvironment.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IVariableTypeEnvironment.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IndexedNLJoinExpressionAnnotation.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IndexedNLJoinExpressionAnnotation.java
index 709bfa1..97a3f9a 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IndexedNLJoinExpressionAnnotation.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/IndexedNLJoinExpressionAnnotation.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.expressions;
 
 public class IndexedNLJoinExpressionAnnotation implements IExpressionAnnotation {
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/LogicalExpressionJobGenToExpressionRuntimeProviderAdapter.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/LogicalExpressionJobGenToExpressionRuntimeProviderAdapter.java
index 91c9eae..1ddfe64 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/LogicalExpressionJobGenToExpressionRuntimeProviderAdapter.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/LogicalExpressionJobGenToExpressionRuntimeProviderAdapter.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.expressions;
 
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/ScalarFunctionCallExpression.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/ScalarFunctionCallExpression.java
index b284b22..81f3dab 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/ScalarFunctionCallExpression.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/ScalarFunctionCallExpression.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/StatefulFunctionCallExpression.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/StatefulFunctionCallExpression.java
index 40f25b2..63a5d1a 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/StatefulFunctionCallExpression.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/StatefulFunctionCallExpression.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/UnnestingFunctionCallExpression.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/UnnestingFunctionCallExpression.java
index 652f9b0..562e8a1 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/UnnestingFunctionCallExpression.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/UnnestingFunctionCallExpression.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/VariableReferenceExpression.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/VariableReferenceExpression.java
index 76a7ec6..0ab1443 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/VariableReferenceExpression.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/expressions/VariableReferenceExpression.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/functions/AlgebricksBuiltinFunctions.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/functions/AlgebricksBuiltinFunctions.java
index de9cf29..5d75c5c 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/functions/AlgebricksBuiltinFunctions.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/functions/AlgebricksBuiltinFunctions.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/functions/FunctionIdentifier.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/functions/FunctionIdentifier.java
index 548f646..7f812f3 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/functions/FunctionIdentifier.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/functions/FunctionIdentifier.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/functions/IFunctionInfo.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/functions/IFunctionInfo.java
index 96afc8e..4c294a7 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/functions/IFunctionInfo.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/functions/IFunctionInfo.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/metadata/IDataSink.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/metadata/IDataSink.java
index 00b3554..a7b7bc5 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/metadata/IDataSink.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/metadata/IDataSink.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/metadata/IDataSource.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/metadata/IDataSource.java
index 22f9feb..ed5cb4b 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/metadata/IDataSource.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/metadata/IDataSource.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/metadata/IDataSourceIndex.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/metadata/IDataSourceIndex.java
index 90c8536..20a2dcf 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/metadata/IDataSourceIndex.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/metadata/IDataSourceIndex.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/metadata/IDataSourcePropertiesProvider.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/metadata/IDataSourcePropertiesProvider.java
index 500b968..3ae1e31 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/metadata/IDataSourcePropertiesProvider.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/metadata/IDataSourcePropertiesProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/metadata/IMetadataProvider.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/metadata/IMetadataProvider.java
index 73da206..b58c366 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/metadata/IMetadataProvider.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/metadata/IMetadataProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AbstractAssignOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AbstractAssignOperator.java
index 0e83902..687025a 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AbstractAssignOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AbstractAssignOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AbstractBinaryJoinOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AbstractBinaryJoinOperator.java
index 5ab44a4..6c00412 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AbstractBinaryJoinOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AbstractBinaryJoinOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AbstractExtensibleLogicalOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AbstractExtensibleLogicalOperator.java
index 10ecb1e..2b3c60a 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AbstractExtensibleLogicalOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AbstractExtensibleLogicalOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AbstractLogicalOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AbstractLogicalOperator.java
index 64dbdef..a7e8479 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AbstractLogicalOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AbstractLogicalOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AbstractOperatorWithNestedPlans.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AbstractOperatorWithNestedPlans.java
index ea4f3e0..417c959 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AbstractOperatorWithNestedPlans.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AbstractOperatorWithNestedPlans.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AbstractScanOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AbstractScanOperator.java
index 4d8cce0..e18fbfb 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AbstractScanOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AbstractScanOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AbstractUnnestOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AbstractUnnestOperator.java
index 9eaf059..fdc827f 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AbstractUnnestOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AbstractUnnestOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AggregateOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AggregateOperator.java
index 0c105d0..371da4c 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AggregateOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AggregateOperator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical;
 
 import java.util.ArrayList;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AssignOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AssignOperator.java
index 4543997..0af3dbc 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AssignOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/AssignOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/DataSourceScanOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/DataSourceScanOperator.java
index 3c21c8f..f23b377 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/DataSourceScanOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/DataSourceScanOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/DistinctOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/DistinctOperator.java
index fed1a15..e5ece69 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/DistinctOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/DistinctOperator.java
@@ -1,17 +1,17 @@
-/*
- * Copyright 2009-2010 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical;
 
 import java.util.ArrayList;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/DistributeResultOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/DistributeResultOperator.java
index 6ca6d87..3e28d73 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/DistributeResultOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/DistributeResultOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/EmptyTupleSourceOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/EmptyTupleSourceOperator.java
index 45f9909..710e02f 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/EmptyTupleSourceOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/EmptyTupleSourceOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/ExchangeOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/ExchangeOperator.java
index aba5f83..a3c2650 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/ExchangeOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/ExchangeOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/ExtensionOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/ExtensionOperator.java
index 5aa858f..bdf6f1c 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/ExtensionOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/ExtensionOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/GroupByOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/GroupByOperator.java
index ba396f4..f738b50 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/GroupByOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/GroupByOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/IOperatorExtension.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/IOperatorExtension.java
index 0a80337..94b4252 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/IOperatorExtension.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/IOperatorExtension.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/IOperatorSchema.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/IOperatorSchema.java
index 043ac8e..4e50f4f 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/IOperatorSchema.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/IOperatorSchema.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/IndexInsertDeleteOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/IndexInsertDeleteOperator.java
index becde1c..587565f 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/IndexInsertDeleteOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/IndexInsertDeleteOperator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical;
 
 import java.util.ArrayList;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/InnerJoinOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/InnerJoinOperator.java
index 54fab7c..e0a2cf1 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/InnerJoinOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/InnerJoinOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/InsertDeleteOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/InsertDeleteOperator.java
index 91e51f6..4a558d1 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/InsertDeleteOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/InsertDeleteOperator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical;
 
 import java.util.ArrayList;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/LeftOuterJoinOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/LeftOuterJoinOperator.java
index 60da2cf..8c37099 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/LeftOuterJoinOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/LeftOuterJoinOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/LimitOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/LimitOperator.java
index 8e67ed9..79145f4 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/LimitOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/LimitOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/NestedTupleSourceOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/NestedTupleSourceOperator.java
index a9a8f55..be23f48 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/NestedTupleSourceOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/NestedTupleSourceOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/OrderOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/OrderOperator.java
index 812c219..335fb36 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/OrderOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/OrderOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/PartitioningSplitOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/PartitioningSplitOperator.java
index 6fe6bed..a6c8f6f 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/PartitioningSplitOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/PartitioningSplitOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/ProjectOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/ProjectOperator.java
index 459e5dd..bcba280 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/ProjectOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/ProjectOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/ReplicateOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/ReplicateOperator.java
index a4e9d2b..6dbd3f5 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/ReplicateOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/ReplicateOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/RunningAggregateOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/RunningAggregateOperator.java
index 3694503..4f608bb 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/RunningAggregateOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/RunningAggregateOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/ScriptOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/ScriptOperator.java
index c75fb40..46e9859 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/ScriptOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/ScriptOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/SelectOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/SelectOperator.java
index fda920a..0bae2c4 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/SelectOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/SelectOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/SinkOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/SinkOperator.java
index 1b12423..bdad6d4 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/SinkOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/SinkOperator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical;
 
 import java.util.ArrayList;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/SubplanOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/SubplanOperator.java
index 89707eb..c0a01b3 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/SubplanOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/SubplanOperator.java
@@ -1,17 +1,17 @@
-/*
- * Copyright 2009-2010 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical;
 
 import java.util.ArrayList;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/UnionAllOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/UnionAllOperator.java
index c7100dd..97a77ec 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/UnionAllOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/UnionAllOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/UnnestMapOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/UnnestMapOperator.java
index b9a137f..f2d2f28 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/UnnestMapOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/UnnestMapOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/UnnestOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/UnnestOperator.java
index 2e1ef16..7efee75 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/UnnestOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/UnnestOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/UpdateOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/UpdateOperator.java
index f156490..841f9c6 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/UpdateOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/UpdateOperator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical;
 
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/WriteOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/WriteOperator.java
index 4c14333..e1c1640 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/WriteOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/WriteOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/WriteResultOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/WriteResultOperator.java
index 48065a5..f02d8e6 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/WriteResultOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/WriteResultOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/FDsAndEquivClassesVisitor.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/FDsAndEquivClassesVisitor.java
index 527a11c..cebddee 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/FDsAndEquivClassesVisitor.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/FDsAndEquivClassesVisitor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/IsomorphismOperatorVisitor.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/IsomorphismOperatorVisitor.java
index 745b8c6..97d257a 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/IsomorphismOperatorVisitor.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/IsomorphismOperatorVisitor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/IsomorphismUtilities.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/IsomorphismUtilities.java
index 02533c3..575e062 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/IsomorphismUtilities.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/IsomorphismUtilities.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/IsomorphismVariableMappingVisitor.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/IsomorphismVariableMappingVisitor.java
index ac8cabe..eecace7 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/IsomorphismVariableMappingVisitor.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/IsomorphismVariableMappingVisitor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/LogicalPropertiesVisitor.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/LogicalPropertiesVisitor.java
index e4fd78e..277b5a3 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/LogicalPropertiesVisitor.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/LogicalPropertiesVisitor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -294,7 +294,7 @@
                         }
                         overhead += sz;
                     }
-                    int frameSize = context.getFrameSize();
+                    int frameSize = context.getPhysicalOptimizationConfig().getFrameSize();
                     if (frameSize > 0) {
                         long sz = frames0 * frameSize + overhead * v.getNumberOfTuples();
                         int frames1 = (int) (sz / frameSize);
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/ProducedVariableVisitor.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/ProducedVariableVisitor.java
index 91ffe4b..8673a77 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/ProducedVariableVisitor.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/ProducedVariableVisitor.java
@@ -1,17 +1,17 @@
-/*
- * Copyright 2009-2010 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.visitors;
 
 import java.util.ArrayList;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/SchemaVariableVisitor.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/SchemaVariableVisitor.java
index 5225ac7..5606e72 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/SchemaVariableVisitor.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/SchemaVariableVisitor.java
@@ -1,17 +1,17 @@
-/*
- * Copyright 2009-2010 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.visitors;
 
 import java.util.ArrayList;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/SubstituteVariableVisitor.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/SubstituteVariableVisitor.java
index bb9b600..3d6b989 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/SubstituteVariableVisitor.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/SubstituteVariableVisitor.java
@@ -1,17 +1,17 @@
-/*
- * Copyright 2009-2010 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.visitors;
 
 import java.util.ArrayList;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/UsedVariableVisitor.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/UsedVariableVisitor.java
index 42f7e20..d05adfb 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/UsedVariableVisitor.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/UsedVariableVisitor.java
@@ -1,17 +1,17 @@
-/*
- * Copyright 2009-2010 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.visitors;
 
 import java.util.Collection;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/VariableUtilities.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/VariableUtilities.java
index f66f99b..08f985b 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/VariableUtilities.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/visitors/VariableUtilities.java
@@ -1,17 +1,17 @@
-/*
- * Copyright 2009-2010 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.visitors;
 
 import java.util.Collection;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AbstractExchangePOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AbstractExchangePOperator.java
index 0aa9cd4..25fb453 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AbstractExchangePOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AbstractExchangePOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AbstractHashJoinPOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AbstractHashJoinPOperator.java
index f188265..764159d 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AbstractHashJoinPOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AbstractHashJoinPOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AbstractJoinPOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AbstractJoinPOperator.java
index 68e3a51..03f03fd 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AbstractJoinPOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AbstractJoinPOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AbstractPhysicalOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AbstractPhysicalOperator.java
index 545d039..ac64882 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AbstractPhysicalOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AbstractPhysicalOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AbstractPreclusteredGroupByPOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AbstractPreclusteredGroupByPOperator.java
index 7dd6372..c375a3e 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AbstractPreclusteredGroupByPOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AbstractPreclusteredGroupByPOperator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.operators.physical;
 
 import java.util.ArrayList;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AbstractPropagatePropertiesForUsedVariablesPOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AbstractPropagatePropertiesForUsedVariablesPOperator.java
index 224d94c..1ce563c 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AbstractPropagatePropertiesForUsedVariablesPOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AbstractPropagatePropertiesForUsedVariablesPOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AbstractScanPOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AbstractScanPOperator.java
index 347d580..18b442b 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AbstractScanPOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AbstractScanPOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AbstractStableSortPOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AbstractStableSortPOperator.java
index 63ea8b9..ffc75c8 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AbstractStableSortPOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AbstractStableSortPOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AggregatePOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AggregatePOperator.java
index f47c2ec..99aec26 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AggregatePOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AggregatePOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AssignPOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AssignPOperator.java
index f5bd9d9..aea04b2 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AssignPOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/AssignPOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/BroadcastPOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/BroadcastPOperator.java
index bf19342..b210d56 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/BroadcastPOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/BroadcastPOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/DataSourceScanPOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/DataSourceScanPOperator.java
index 526c37f..98e4490 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/DataSourceScanPOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/DataSourceScanPOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/DistributeResultPOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/DistributeResultPOperator.java
index 9a96319..1ba07be 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/DistributeResultPOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/DistributeResultPOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/EmptyTupleSourcePOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/EmptyTupleSourcePOperator.java
index bf42c30..107aebd 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/EmptyTupleSourcePOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/EmptyTupleSourcePOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/ExternalGroupByPOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/ExternalGroupByPOperator.java
index 55add37..da70ba7 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/ExternalGroupByPOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/ExternalGroupByPOperator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.operators.physical;
 
 import java.util.ArrayList;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/HashPartitionExchangePOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/HashPartitionExchangePOperator.java
index 043cb81..1a91958 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/HashPartitionExchangePOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/HashPartitionExchangePOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/HashPartitionMergeExchangePOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/HashPartitionMergeExchangePOperator.java
index 61d4880..9955a63 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/HashPartitionMergeExchangePOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/HashPartitionMergeExchangePOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/HybridHashJoinPOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/HybridHashJoinPOperator.java
index d745abd..52cbb52 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/HybridHashJoinPOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/HybridHashJoinPOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/InMemoryHashJoinPOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/InMemoryHashJoinPOperator.java
index 2c59151..55616f9 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/InMemoryHashJoinPOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/InMemoryHashJoinPOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/InMemoryStableSortPOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/InMemoryStableSortPOperator.java
index ec2862e..4a7d875 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/InMemoryStableSortPOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/InMemoryStableSortPOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/IndexInsertDeletePOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/IndexInsertDeletePOperator.java
index 5fd6ef4..2f9417b 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/IndexInsertDeletePOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/IndexInsertDeletePOperator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.operators.physical;
 
 import java.util.ArrayList;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/InsertDeletePOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/InsertDeletePOperator.java
index 3e2827b..d8b7c33 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/InsertDeletePOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/InsertDeletePOperator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.operators.physical;
 
 import java.util.ArrayList;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/MicroPreclusteredGroupByPOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/MicroPreclusteredGroupByPOperator.java
index c159ffd..546a77b 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/MicroPreclusteredGroupByPOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/MicroPreclusteredGroupByPOperator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.operators.physical;
 
 import java.util.List;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/NLJoinPOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/NLJoinPOperator.java
index 5e8b59e..b35c6f9 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/NLJoinPOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/NLJoinPOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/NestedTupleSourcePOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/NestedTupleSourcePOperator.java
index 47a3dd2..f2b52da 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/NestedTupleSourcePOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/NestedTupleSourcePOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/OneToOneExchangePOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/OneToOneExchangePOperator.java
index eb4fffa..456744e 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/OneToOneExchangePOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/OneToOneExchangePOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/PreSortedDistinctByPOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/PreSortedDistinctByPOperator.java
index b5656cd..cd99155 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/PreSortedDistinctByPOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/PreSortedDistinctByPOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/PreclusteredGroupByPOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/PreclusteredGroupByPOperator.java
index 0849c7d..51b009f 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/PreclusteredGroupByPOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/PreclusteredGroupByPOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/RandomMergeExchangePOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/RandomMergeExchangePOperator.java
index 22d8cc3..2478859 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/RandomMergeExchangePOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/RandomMergeExchangePOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/RangePartitionPOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/RangePartitionPOperator.java
index 8875f6c..4142cdc 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/RangePartitionPOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/RangePartitionPOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/ReplicatePOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/ReplicatePOperator.java
index 060e8d7..c00e8f5 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/ReplicatePOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/ReplicatePOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/RunningAggregatePOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/RunningAggregatePOperator.java
index b37c0ea..21def02 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/RunningAggregatePOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/RunningAggregatePOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/SinkPOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/SinkPOperator.java
index ccb61a2..c5fa192 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/SinkPOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/SinkPOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/SinkWritePOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/SinkWritePOperator.java
index e89b8e0..fea9701 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/SinkWritePOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/SinkWritePOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/SortMergeExchangePOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/SortMergeExchangePOperator.java
index 19d6c79..dc345ac 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/SortMergeExchangePOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/SortMergeExchangePOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/StableSortPOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/StableSortPOperator.java
index df15f29..2c4d89d 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/StableSortPOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/StableSortPOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/StreamLimitPOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/StreamLimitPOperator.java
index 531b300..324709a 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/StreamLimitPOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/StreamLimitPOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/StreamProjectPOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/StreamProjectPOperator.java
index 7861dc0..fa7d34e 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/StreamProjectPOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/StreamProjectPOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/StreamSelectPOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/StreamSelectPOperator.java
index 4352d1f..686b21c 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/StreamSelectPOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/StreamSelectPOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/StringStreamingScriptPOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/StringStreamingScriptPOperator.java
index a4642bb..39271bb 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/StringStreamingScriptPOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/StringStreamingScriptPOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/SubplanPOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/SubplanPOperator.java
index 933acce..28df9fe 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/SubplanPOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/SubplanPOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/UnionAllPOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/UnionAllPOperator.java
index d3f7851..7fb6ddc 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/UnionAllPOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/UnionAllPOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/UnnestPOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/UnnestPOperator.java
index 38ebec1..bf45e18 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/UnnestPOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/UnnestPOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/WriteResultPOperator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/WriteResultPOperator.java
index 547fe84..3b9d3d7 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/WriteResultPOperator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/physical/WriteResultPOperator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.operators.physical;
 
 import java.util.ArrayList;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/plan/ALogicalPlanImpl.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/plan/ALogicalPlanImpl.java
index 103f534..8048bf1c 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/plan/ALogicalPlanImpl.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/plan/ALogicalPlanImpl.java
@@ -1,17 +1,17 @@
-/*
- * Copyright 2009-2010 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.plan;
 
 import java.util.ArrayList;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/prettyprint/LogicalOperatorPrettyPrintVisitor.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/prettyprint/LogicalOperatorPrettyPrintVisitor.java
index 4b7597c..9c5de9c 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/prettyprint/LogicalOperatorPrettyPrintVisitor.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/prettyprint/LogicalOperatorPrettyPrintVisitor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/prettyprint/PlanPrettyPrinter.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/prettyprint/PlanPrettyPrinter.java
index aa96513..33c106b 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/prettyprint/PlanPrettyPrinter.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/prettyprint/PlanPrettyPrinter.java
@@ -1,17 +1,17 @@
-/*
- * Copyright 2009-2010 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.prettyprint;
 
 import org.apache.commons.lang3.mutable.Mutable;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/AbstractGroupingProperty.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/AbstractGroupingProperty.java
index 341b4f0..b757bbb 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/AbstractGroupingProperty.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/AbstractGroupingProperty.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/AsterixNodeGroupDomain.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/AsterixNodeGroupDomain.java
index d27534a..ab2cde2 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/AsterixNodeGroupDomain.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/AsterixNodeGroupDomain.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/BroadcastPartitioningProperty.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/BroadcastPartitioningProperty.java
index 8a38cfb..53aea68 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/BroadcastPartitioningProperty.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/BroadcastPartitioningProperty.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/FileSplitDomain.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/FileSplitDomain.java
index 876ee52..5fbcdb9 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/FileSplitDomain.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/FileSplitDomain.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/FilteredVariablePropagationPolicy.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/FilteredVariablePropagationPolicy.java
index 40bbc36..822cdc3 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/FilteredVariablePropagationPolicy.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/FilteredVariablePropagationPolicy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/FunctionalDependency.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/FunctionalDependency.java
index 1c76171..5bf4637 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/FunctionalDependency.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/FunctionalDependency.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/ILocalStructuralProperty.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/ILocalStructuralProperty.java
index fbe30f5..921b067 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/ILocalStructuralProperty.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/ILocalStructuralProperty.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/ILogicalPropertiesVector.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/ILogicalPropertiesVector.java
index 214a579..175f041 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/ILogicalPropertiesVector.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/ILogicalPropertiesVector.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/INodeDomain.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/INodeDomain.java
index 76057f6..17e97ec 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/INodeDomain.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/INodeDomain.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/IPartitioningProperty.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/IPartitioningProperty.java
index 8a0cab7..bb8cfe2 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/IPartitioningProperty.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/IPartitioningProperty.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/IPartitioningRequirementsCoordinator.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/IPartitioningRequirementsCoordinator.java
index 209f1e8..cd9eb96 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/IPartitioningRequirementsCoordinator.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/IPartitioningRequirementsCoordinator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/IPhysicalPropertiesVector.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/IPhysicalPropertiesVector.java
index 72f9683..45bf1ec 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/IPhysicalPropertiesVector.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/IPhysicalPropertiesVector.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/IPropertiesComputer.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/IPropertiesComputer.java
index 02afec1..716b459 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/IPropertiesComputer.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/IPropertiesComputer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/IStructuralProperty.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/IStructuralProperty.java
index aabf9e9..bf8aaa5 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/IStructuralProperty.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/IStructuralProperty.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/LocalGroupingProperty.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/LocalGroupingProperty.java
index 5c82ee7..6f6ea64 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/LocalGroupingProperty.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/LocalGroupingProperty.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/LocalOrderProperty.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/LocalOrderProperty.java
index 7810df7..6cb318a 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/LocalOrderProperty.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/LocalOrderProperty.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/LogicalPropertiesVectorImpl.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/LogicalPropertiesVectorImpl.java
index ae25f41..848c86e 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/LogicalPropertiesVectorImpl.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/LogicalPropertiesVectorImpl.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/OrderColumn.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/OrderColumn.java
index 5f22b95..a0e76d1 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/OrderColumn.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/OrderColumn.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/OrderedPartitionedProperty.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/OrderedPartitionedProperty.java
index 137c46d..6f88933 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/OrderedPartitionedProperty.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/OrderedPartitionedProperty.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/PhysicalRequirements.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/PhysicalRequirements.java
index 7503a3c..ce0907f 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/PhysicalRequirements.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/PhysicalRequirements.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/PropertiesUtil.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/PropertiesUtil.java
index 8ca4ccf..606c8cb 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/PropertiesUtil.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/PropertiesUtil.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/RandomPartitioningProperty.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/RandomPartitioningProperty.java
index 66e900e..06008a6 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/RandomPartitioningProperty.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/RandomPartitioningProperty.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/ResultSetDomain.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/ResultSetDomain.java
index ca15346..688523b 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/ResultSetDomain.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/ResultSetDomain.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/StructuralPropertiesVector.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/StructuralPropertiesVector.java
index d8d8f35..7290319 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/StructuralPropertiesVector.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/StructuralPropertiesVector.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/TypePropagationPolicy.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/TypePropagationPolicy.java
index 01c2de4..16fed48 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/TypePropagationPolicy.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/TypePropagationPolicy.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.properties;
 
 import java.util.List;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/UnorderedPartitionedProperty.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/UnorderedPartitionedProperty.java
index 520e7db..3e79192 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/UnorderedPartitionedProperty.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/UnorderedPartitionedProperty.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/UnpartitionedPropertyComputer.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/UnpartitionedPropertyComputer.java
index acdecba..7a47c1e 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/UnpartitionedPropertyComputer.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/UnpartitionedPropertyComputer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/VariablePropagationPolicy.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/VariablePropagationPolicy.java
index f9c4ac3..5ac3a93 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/VariablePropagationPolicy.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/properties/VariablePropagationPolicy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/scripting/IScriptDescription.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/scripting/IScriptDescription.java
index 89f40d6..f3724a5 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/scripting/IScriptDescription.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/scripting/IScriptDescription.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/scripting/StringStreamingScriptDescription.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/scripting/StringStreamingScriptDescription.java
index f41535f..f030faf 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/scripting/StringStreamingScriptDescription.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/scripting/StringStreamingScriptDescription.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/typing/AbstractTypeEnvironment.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/typing/AbstractTypeEnvironment.java
index e0217a9..9833c17 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/typing/AbstractTypeEnvironment.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/typing/AbstractTypeEnvironment.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.typing;
 
 import java.util.HashMap;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/typing/ITypeEnvPointer.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/typing/ITypeEnvPointer.java
index 3c8d674..0b56db7 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/typing/ITypeEnvPointer.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/typing/ITypeEnvPointer.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.typing;
 
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/typing/ITypingContext.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/typing/ITypingContext.java
index 4996b48..7945fa7 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/typing/ITypingContext.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/typing/ITypingContext.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.typing;
 
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/typing/NonPropagatingTypeEnvironment.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/typing/NonPropagatingTypeEnvironment.java
index 00cbac8..7e744dd 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/typing/NonPropagatingTypeEnvironment.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/typing/NonPropagatingTypeEnvironment.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.typing;
 
 import java.util.List;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/typing/OpRefTypeEnvPointer.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/typing/OpRefTypeEnvPointer.java
index 417b900..6a1c8b5 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/typing/OpRefTypeEnvPointer.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/typing/OpRefTypeEnvPointer.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.typing;
 
 import org.apache.commons.lang3.mutable.Mutable;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/typing/PropagateOperatorInputsTypeEnvironment.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/typing/PropagateOperatorInputsTypeEnvironment.java
index 5a42caf..71bc891 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/typing/PropagateOperatorInputsTypeEnvironment.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/typing/PropagateOperatorInputsTypeEnvironment.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.typing;
 
 import java.util.ArrayList;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/typing/PropagatingTypeEnvironment.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/typing/PropagatingTypeEnvironment.java
index d73e89f..4294571 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/typing/PropagatingTypeEnvironment.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/typing/PropagatingTypeEnvironment.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.typing;
 
 import java.util.ArrayList;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/util/OperatorManipulationUtil.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/util/OperatorManipulationUtil.java
index 35b36dc..6285b96 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/util/OperatorManipulationUtil.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/util/OperatorManipulationUtil.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/util/OperatorPropertiesUtil.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/util/OperatorPropertiesUtil.java
index cd8f042..0838291 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/util/OperatorPropertiesUtil.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/util/OperatorPropertiesUtil.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/visitors/AbstractConstVarFunVisitor.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/visitors/AbstractConstVarFunVisitor.java
index fac5052..c7424f0 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/visitors/AbstractConstVarFunVisitor.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/visitors/AbstractConstVarFunVisitor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/visitors/ILogicalExpressionReferenceTransform.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/visitors/ILogicalExpressionReferenceTransform.java
index a5808b1..06cec65 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/visitors/ILogicalExpressionReferenceTransform.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/visitors/ILogicalExpressionReferenceTransform.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/visitors/ILogicalExpressionVisitor.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/visitors/ILogicalExpressionVisitor.java
index d64b6ae..3448db8 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/visitors/ILogicalExpressionVisitor.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/visitors/ILogicalExpressionVisitor.java
@@ -1,17 +1,17 @@
-/*
- * Copyright 2009-2010 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.algebra.visitors;
 
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/visitors/ILogicalOperatorVisitor.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/visitors/ILogicalOperatorVisitor.java
index 32b049e..0467d63 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/visitors/ILogicalOperatorVisitor.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/visitors/ILogicalOperatorVisitor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/config/AlgebricksConfig.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/config/AlgebricksConfig.java
index 061dbe4..abdd6d1 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/config/AlgebricksConfig.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/config/AlgebricksConfig.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/config/SysoutFormatter.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/config/SysoutFormatter.java
index 872676b..d449f92 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/config/SysoutFormatter.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/config/SysoutFormatter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/jobgen/impl/ConnectorPolicyAssignmentPolicy.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/jobgen/impl/ConnectorPolicyAssignmentPolicy.java
index e786f8c..4cb111d 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/jobgen/impl/ConnectorPolicyAssignmentPolicy.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/jobgen/impl/ConnectorPolicyAssignmentPolicy.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.jobgen.impl;
 
 import edu.uci.ics.hyracks.api.dataflow.IConnectorDescriptor;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/jobgen/impl/JobBuilder.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/jobgen/impl/JobBuilder.java
index 61625d3..eb1e99c 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/jobgen/impl/JobBuilder.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/jobgen/impl/JobBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/jobgen/impl/JobGenContext.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/jobgen/impl/JobGenContext.java
index 245e5e1..4ae956a 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/jobgen/impl/JobGenContext.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/jobgen/impl/JobGenContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/jobgen/impl/JobGenHelper.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/jobgen/impl/JobGenHelper.java
index 530d19c..2d195e4 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/jobgen/impl/JobGenHelper.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/jobgen/impl/JobGenHelper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/jobgen/impl/OperatorSchemaImpl.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/jobgen/impl/OperatorSchemaImpl.java
index d8fc436..dc1fb35 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/jobgen/impl/OperatorSchemaImpl.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/jobgen/impl/OperatorSchemaImpl.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/jobgen/impl/PlanCompiler.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/jobgen/impl/PlanCompiler.java
index b77d65d..aa47041 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/jobgen/impl/PlanCompiler.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/jobgen/impl/PlanCompiler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/rewriter/base/AbstractRuleController.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/rewriter/base/AbstractRuleController.java
index 3382c6e..b61c245 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/rewriter/base/AbstractRuleController.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/rewriter/base/AbstractRuleController.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/rewriter/base/AlgebricksOptimizationContext.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/rewriter/base/AlgebricksOptimizationContext.java
index 738fc7f..77d8d40 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/rewriter/base/AlgebricksOptimizationContext.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/rewriter/base/AlgebricksOptimizationContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -70,17 +70,14 @@
     protected final Map<ILogicalOperator, Map<LogicalVariable, EquivalenceClass>> eqClassGlobalMap = new HashMap<ILogicalOperator, Map<LogicalVariable, EquivalenceClass>>();
 
     protected final Map<ILogicalOperator, ILogicalPropertiesVector> logicalProps = new HashMap<ILogicalOperator, ILogicalPropertiesVector>();
-    private final int frameSize;
     private final IExpressionTypeComputer expressionTypeComputer;
     private final INullableTypeComputer nullableTypeComputer;
 
-    public AlgebricksOptimizationContext(int varCounter, int frameSize,
-            IExpressionEvalSizeComputer expressionEvalSizeComputer,
+    public AlgebricksOptimizationContext(int varCounter, IExpressionEvalSizeComputer expressionEvalSizeComputer,
             IMergeAggregationExpressionFactory mergeAggregationExpressionFactory,
             IExpressionTypeComputer expressionTypeComputer, INullableTypeComputer nullableTypeComputer,
             PhysicalOptimizationConfig physicalOptimizationConfig) {
         this.varCounter = varCounter;
-        this.frameSize = frameSize;
         this.expressionEvalSizeComputer = expressionEvalSizeComputer;
         this.mergeAggregationExpressionFactory = mergeAggregationExpressionFactory;
         this.expressionTypeComputer = expressionTypeComputer;
@@ -220,11 +217,6 @@
         return varEvalSizeEnv;
     }
 
-    @Override
-    public int getFrameSize() {
-        return frameSize;
-    }
-
     public IMergeAggregationExpressionFactory getMergeAggregationExpressionFactory() {
         return mergeAggregationExpressionFactory;
     }
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/rewriter/base/HeuristicOptimizer.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/rewriter/base/HeuristicOptimizer.java
index 471b71c..f684c8a 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/rewriter/base/HeuristicOptimizer.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/rewriter/base/HeuristicOptimizer.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.rewriter.base;
 
 import java.util.List;
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/rewriter/base/IAlgebraicRewriteRule.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/rewriter/base/IAlgebraicRewriteRule.java
index fc39d0b..6bf0b72 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/rewriter/base/IAlgebraicRewriteRule.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/rewriter/base/IAlgebraicRewriteRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/rewriter/base/IOptimizationContextFactory.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/rewriter/base/IOptimizationContextFactory.java
index 1373fa7..70b7f64 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/rewriter/base/IOptimizationContextFactory.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/rewriter/base/IOptimizationContextFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -21,7 +21,7 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.INullableTypeComputer;
 
 public interface IOptimizationContextFactory {
-    public IOptimizationContext createOptimizationContext(int varCounter, int frameSize,
+    public IOptimizationContext createOptimizationContext(int varCounter,
             IExpressionEvalSizeComputer expressionEvalSizeComputer,
             IMergeAggregationExpressionFactory mergeAggregationExpressionFactory,
             IExpressionTypeComputer expressionTypeComputer, INullableTypeComputer nullableTypeComputer,
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/rewriter/base/PhysicalOptimizationConfig.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/rewriter/base/PhysicalOptimizationConfig.java
index fc6c198..47d2266 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/rewriter/base/PhysicalOptimizationConfig.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/rewriter/base/PhysicalOptimizationConfig.java
@@ -1,13 +1,32 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.core.rewriter.base;
 
 import java.util.Properties;
 
 public class PhysicalOptimizationConfig {
     private static final int MB = 1048576;
+    
     private static final String FRAMESIZE = "FRAMESIZE";
     private static final String MAX_FRAMES_EXTERNAL_SORT = "MAX_FRAMES_EXTERNAL_SORT";
     private static final String MAX_FRAMES_EXTERNAL_GROUP_BY = "MAX_FRAMES_EXTERNAL_GROUP_BY";
-
+    private static final String MAX_FRAMES_LEFT_INPUT_HYBRID_HASH = "MAX_FRAMES_LEFT_INPUT_HYBRID_HASH";
+    private static final String MAX_FRAMES_HYBRID_HASH = "MAX_FRAMES_HYBRID_HASH";
+    private static final String FUDGE_FACTOR = "FUDGE_FACTOR";
+    private static final String MAX_RECORDS_PER_FRAME = "MAX_RECORDS_PER_FRAME";
+    
     private static final String DEFAULT_HASH_GROUP_TABLE_SIZE = "DEFAULT_HASH_GROUP_TABLE_SIZE";
     private static final String DEFAULT_EXTERNAL_GROUP_TABLE_SIZE = "DEFAULT_EXTERNAL_GROUP_TABLE_SIZE";
     private static final String DEFAULT_IN_MEM_HASH_JOIN_TABLE_SIZE = "DEFAULT_IN_MEM_HASH_JOIN_TABLE_SIZE";
@@ -33,14 +52,39 @@
     public void setFrameSize(int frameSize) {
         setInt(FRAMESIZE, frameSize);
     }
-
-    public int getMaxFramesExternalSort() {
-        int frameSize = getFrameSize();
-        return getInt(MAX_FRAMES_EXTERNAL_SORT, (int) (((long) 512 * MB) / frameSize));
+    
+    public double getFudgeFactor() {
+        return getDouble(FUDGE_FACTOR, 1.3);
     }
 
-    public void setMaxFramesExternalSort(int frameLimit) {
-        setInt(MAX_FRAMES_EXTERNAL_SORT, frameLimit);
+    public void setFudgeFactor(double fudgeFactor) {
+        setDouble(FUDGE_FACTOR, fudgeFactor);
+    }
+    
+    public int getMaxRecordsPerFrame() {
+        return getInt(MAX_RECORDS_PER_FRAME, 512);
+    }
+
+    public void setMaxRecordsPerFrame(int maxRecords) {
+        setInt(MAX_RECORDS_PER_FRAME, maxRecords);
+    }
+
+    public int getMaxFramesLeftInputHybridHash() {
+        int frameSize = getFrameSize();
+        return getInt(MAX_FRAMES_LEFT_INPUT_HYBRID_HASH, (int) (140L * 1024 * MB / frameSize));
+    }
+
+    public void setMaxFramesLeftInputHybridHash(int frameLimit) {
+        setInt(MAX_FRAMES_LEFT_INPUT_HYBRID_HASH, frameLimit);
+    }
+    
+    public int getMaxFramesHybridHash() {
+        int frameSize = getFrameSize();
+        return getInt(MAX_FRAMES_HYBRID_HASH, (int) (64L * MB / frameSize));
+    }
+
+    public void setMaxFramesHybridHash(int frameLimit) {
+        setInt(MAX_FRAMES_HYBRID_HASH, frameLimit);
     }
 
     public int getMaxFramesExternalGroupBy() {
@@ -51,6 +95,15 @@
     public void setMaxFramesExternalGroupBy(int frameLimit) {
         setInt(MAX_FRAMES_EXTERNAL_GROUP_BY, frameLimit);
     }
+    
+    public int getMaxFramesExternalSort() {
+        int frameSize = getFrameSize();
+        return getInt(MAX_FRAMES_EXTERNAL_SORT, (int) (((long) 32 * MB) / frameSize));
+    }
+
+    public void setMaxFramesExternalSort(int frameLimit) {
+        setInt(MAX_FRAMES_EXTERNAL_SORT, frameLimit);
+    }
 
     public int getHashGroupByTableSize() {
         return getInt(DEFAULT_HASH_GROUP_TABLE_SIZE, 10485767);
@@ -87,5 +140,17 @@
         else
             return Integer.parseInt(value);
     }
+    
+    private void setDouble(String property, double value) {
+        properties.setProperty(property, Double.toString(value));
+    }
+
+    private double getDouble(String property, double defaultValue) {
+        String value = properties.getProperty(property);
+        if (value == null)
+            return defaultValue;
+        else
+            return Double.parseDouble(value);
+    }
 
 }
diff --git a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/utils/Substitution.java b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/utils/Substitution.java
index c52cdff..3ef4316 100644
--- a/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/utils/Substitution.java
+++ b/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/utils/Substitution.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-data/pom.xml b/algebricks/algebricks-data/pom.xml
index 1ca1557..613d692 100644
--- a/algebricks/algebricks-data/pom.xml
+++ b/algebricks/algebricks-data/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>algebricks-data</artifactId>
@@ -6,7 +20,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>algebricks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -27,12 +41,12 @@
   <dependency>
   	<groupId>edu.uci.ics.hyracks</groupId>
   	<artifactId>algebricks-common</artifactId>
-  	<version>0.2.6-SNAPSHOT</version>
+  	<version>0.2.7-SNAPSHOT</version>
   </dependency>
   <dependency>
   	<groupId>edu.uci.ics.hyracks</groupId>
   	<artifactId>hyracks-data-std</artifactId>
-  	<version>0.2.6-SNAPSHOT</version>
+  	<version>0.2.7-SNAPSHOT</version>
   </dependency>
   </dependencies>
 </project>
diff --git a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IAWriter.java b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IAWriter.java
index ca79526..37460ad 100644
--- a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IAWriter.java
+++ b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IAWriter.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.data;
 
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
diff --git a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IAWriterFactory.java b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IAWriterFactory.java
index 71f52a6..bf7ba87 100644
--- a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IAWriterFactory.java
+++ b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IAWriterFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.data;
 
 import java.io.PrintStream;
diff --git a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IBinaryBooleanInspector.java b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IBinaryBooleanInspector.java
index a1b7086..e21a2fa 100644
--- a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IBinaryBooleanInspector.java
+++ b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IBinaryBooleanInspector.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IBinaryBooleanInspectorFactory.java b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IBinaryBooleanInspectorFactory.java
index 23d96ca..d327cd4 100644
--- a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IBinaryBooleanInspectorFactory.java
+++ b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IBinaryBooleanInspectorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IBinaryComparatorFactoryProvider.java b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IBinaryComparatorFactoryProvider.java
index 3841e17..ecdccef 100644
--- a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IBinaryComparatorFactoryProvider.java
+++ b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IBinaryComparatorFactoryProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IBinaryHashFunctionFactoryProvider.java b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IBinaryHashFunctionFactoryProvider.java
index dd7288d..170ef3a 100644
--- a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IBinaryHashFunctionFactoryProvider.java
+++ b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IBinaryHashFunctionFactoryProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IBinaryHashFunctionFamilyProvider.java b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IBinaryHashFunctionFamilyProvider.java
index 8a992b3..1d4a77c 100644
--- a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IBinaryHashFunctionFamilyProvider.java
+++ b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IBinaryHashFunctionFamilyProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IBinaryIntegerInspector.java b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IBinaryIntegerInspector.java
index 24a7eb1..31f82ed 100644
--- a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IBinaryIntegerInspector.java
+++ b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IBinaryIntegerInspector.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IBinaryIntegerInspectorFactory.java b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IBinaryIntegerInspectorFactory.java
index 8760992..00e418b 100644
--- a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IBinaryIntegerInspectorFactory.java
+++ b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IBinaryIntegerInspectorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/INormalizedKeyComputerFactoryProvider.java b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/INormalizedKeyComputerFactoryProvider.java
index 6be0ec0..b008b8f 100644
--- a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/INormalizedKeyComputerFactoryProvider.java
+++ b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/INormalizedKeyComputerFactoryProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IPrinter.java b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IPrinter.java
index c3f42fb..2aa906a 100644
--- a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IPrinter.java
+++ b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IPrinter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IPrinterFactory.java b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IPrinterFactory.java
index 1a3e0d3..27cb7eb 100644
--- a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IPrinterFactory.java
+++ b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IPrinterFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IPrinterFactoryProvider.java b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IPrinterFactoryProvider.java
index 45a5088..4c5ca09 100644
--- a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IPrinterFactoryProvider.java
+++ b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IPrinterFactoryProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IResultSerializerFactoryProvider.java b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IResultSerializerFactoryProvider.java
index 5e62612..42d630e 100644
--- a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IResultSerializerFactoryProvider.java
+++ b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/IResultSerializerFactoryProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/ISerializerDeserializerProvider.java b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/ISerializerDeserializerProvider.java
index fdd76a0..c53fb9c 100644
--- a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/ISerializerDeserializerProvider.java
+++ b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/ISerializerDeserializerProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/ITypeTraitProvider.java b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/ITypeTraitProvider.java
index f94caea..ba8965d 100644
--- a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/ITypeTraitProvider.java
+++ b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/ITypeTraitProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/impl/BinaryBooleanInspectorImpl.java b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/impl/BinaryBooleanInspectorImpl.java
index b9bbb7d..a4f8239 100644
--- a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/impl/BinaryBooleanInspectorImpl.java
+++ b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/impl/BinaryBooleanInspectorImpl.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/impl/BinaryIntegerInspectorImpl.java b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/impl/BinaryIntegerInspectorImpl.java
index 2fc170f..691d025 100644
--- a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/impl/BinaryIntegerInspectorImpl.java
+++ b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/impl/BinaryIntegerInspectorImpl.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/impl/IntegerPrinterFactory.java b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/impl/IntegerPrinterFactory.java
index fa9bb51..d41f619 100644
--- a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/impl/IntegerPrinterFactory.java
+++ b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/impl/IntegerPrinterFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/impl/NoopNullWriterFactory.java b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/impl/NoopNullWriterFactory.java
index 8011091..442a724 100644
--- a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/impl/NoopNullWriterFactory.java
+++ b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/impl/NoopNullWriterFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/impl/UTF8StringPrinterFactory.java b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/impl/UTF8StringPrinterFactory.java
index 139866a..3b802b3 100644
--- a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/impl/UTF8StringPrinterFactory.java
+++ b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/impl/UTF8StringPrinterFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/utils/WriteValueTools.java b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/utils/WriteValueTools.java
index 7b045dd..3a1203b 100644
--- a/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/utils/WriteValueTools.java
+++ b/algebricks/algebricks-data/src/main/java/edu/uci/ics/hyracks/algebricks/data/utils/WriteValueTools.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.data.utils;
 
 import java.io.IOException;
diff --git a/algebricks/algebricks-examples/piglet-example/pom.xml b/algebricks/algebricks-examples/piglet-example/pom.xml
index 254d016..3c1588d 100644
--- a/algebricks/algebricks-examples/piglet-example/pom.xml
+++ b/algebricks/algebricks-examples/piglet-example/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>piglet-example</artifactId>
@@ -6,7 +20,7 @@
 	<parent>
 		<groupId>edu.uci.ics.hyracks</groupId>
 		<artifactId>algebricks-examples</artifactId>
-		<version>0.2.6-SNAPSHOT</version>
+		<version>0.2.7-SNAPSHOT</version>
 	</parent>
 
 	<build>
@@ -107,7 +121,7 @@
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>algebricks-compiler</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 		</dependency>
 		<dependency>
 			<groupId>junit</groupId>
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/ASTNode.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/ASTNode.java
index d94fb9e..1bdf6b2 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/ASTNode.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/ASTNode.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.ast;
 
 public abstract class ASTNode {
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/AssignmentNode.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/AssignmentNode.java
index 7fa8c6c..71cf26d 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/AssignmentNode.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/AssignmentNode.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.ast;
 
 public class AssignmentNode extends ASTNode {
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/DumpNode.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/DumpNode.java
index 5e8bc76..42fca63 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/DumpNode.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/DumpNode.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.ast;
 
 public class DumpNode extends RelationNode {
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/ExpressionNode.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/ExpressionNode.java
index 3f68ae6..c1482c2 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/ExpressionNode.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/ExpressionNode.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.ast;
 
 public abstract class ExpressionNode extends ASTNode {
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/FieldAccessExpressionNode.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/FieldAccessExpressionNode.java
index 69c9262..90b54e6 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/FieldAccessExpressionNode.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/FieldAccessExpressionNode.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.ast;
 
 public class FieldAccessExpressionNode extends ExpressionNode {
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/FilterNode.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/FilterNode.java
index bc90043..b917cbb 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/FilterNode.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/FilterNode.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.ast;
 
 public class FilterNode extends RelationNode {
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/FunctionTag.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/FunctionTag.java
index 2ab397a..523efb1 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/FunctionTag.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/FunctionTag.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.ast;
 
 public enum FunctionTag {
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/LiteralExpressionNode.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/LiteralExpressionNode.java
index 547d487..7b3f2bd 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/LiteralExpressionNode.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/LiteralExpressionNode.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.ast;
 
 import edu.uci.ics.hyracks.algebricks.examples.piglet.types.Type;
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/LoadNode.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/LoadNode.java
index e5da760..0ff16b9 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/LoadNode.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/LoadNode.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.ast;
 
 import edu.uci.ics.hyracks.algebricks.examples.piglet.types.Schema;
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/RelationNode.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/RelationNode.java
index 51e275f..9bd7324 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/RelationNode.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/RelationNode.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.ast;
 
 public abstract class RelationNode extends ASTNode {
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/ScalarFunctionExpressionNode.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/ScalarFunctionExpressionNode.java
index 9b55ae9..a0ce89b 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/ScalarFunctionExpressionNode.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/ast/ScalarFunctionExpressionNode.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.ast;
 
 import java.util.List;
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/compiler/ConstantValue.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/compiler/ConstantValue.java
index e6226f4..82276d0 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/compiler/ConstantValue.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/compiler/ConstantValue.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.compiler;
 
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IAlgebricksConstantValue;
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/compiler/PigletCompiler.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/compiler/PigletCompiler.java
index 6c2700d..89b2810 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/compiler/PigletCompiler.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/compiler/PigletCompiler.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.compiler;
 
 import java.io.Reader;
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/compiler/PigletPrinterFactoryProvider.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/compiler/PigletPrinterFactoryProvider.java
index 95797bc..bf06727 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/compiler/PigletPrinterFactoryProvider.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/compiler/PigletPrinterFactoryProvider.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.compiler;
 
 import java.io.IOException;
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/exceptions/PigletException.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/exceptions/PigletException.java
index d196b70..aa28f34 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/exceptions/PigletException.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/exceptions/PigletException.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.exceptions;
 
 public class PigletException extends Exception {
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/metadata/FileSplitUtils.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/metadata/FileSplitUtils.java
index d0f9b44..1ac4259 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/metadata/FileSplitUtils.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/metadata/FileSplitUtils.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.metadata;
 
 import java.io.File;
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/metadata/PigletFileDataSink.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/metadata/PigletFileDataSink.java
index 93f9cae..6ab624d 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/metadata/PigletFileDataSink.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/metadata/PigletFileDataSink.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.metadata;
 
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSink;
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/metadata/PigletFileDataSource.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/metadata/PigletFileDataSource.java
index 6763d45..076e15a 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/metadata/PigletFileDataSource.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/metadata/PigletFileDataSource.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.metadata;
 
 import java.util.ArrayList;
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/metadata/PigletFunction.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/metadata/PigletFunction.java
index 439ed7a..47148ac 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/metadata/PigletFunction.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/metadata/PigletFunction.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/metadata/PigletMetadataProvider.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/metadata/PigletMetadataProvider.java
index 9caa3e3..f441478 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/metadata/PigletMetadataProvider.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/metadata/PigletMetadataProvider.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.metadata;
 
 import java.util.Collections;
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/rewriter/PigletRewriteRuleset.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/rewriter/PigletRewriteRuleset.java
index b2a5215..767f458 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/rewriter/PigletRewriteRuleset.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/rewriter/PigletRewriteRuleset.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.rewriter;
 
 import java.util.LinkedList;
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/runtime/PigletExpressionJobGen.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/runtime/PigletExpressionJobGen.java
index 08947d1..9ae68bb 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/runtime/PigletExpressionJobGen.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/runtime/PigletExpressionJobGen.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.runtime;
 
 import java.io.DataOutput;
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/runtime/functions/IPigletFunctionEvaluatorFactoryBuilder.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/runtime/functions/IPigletFunctionEvaluatorFactoryBuilder.java
index 7aa3734..c52a4bd 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/runtime/functions/IPigletFunctionEvaluatorFactoryBuilder.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/runtime/functions/IPigletFunctionEvaluatorFactoryBuilder.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.runtime.functions;
 
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/runtime/functions/IntegerEqFunctionEvaluatorFactory.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/runtime/functions/IntegerEqFunctionEvaluatorFactory.java
index 57706a1..a3f62f7 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/runtime/functions/IntegerEqFunctionEvaluatorFactory.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/runtime/functions/IntegerEqFunctionEvaluatorFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.runtime.functions;
 
 import java.io.DataOutput;
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/runtime/functions/PigletFunctionRegistry.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/runtime/functions/PigletFunctionRegistry.java
index bf37c0b..35015a5 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/runtime/functions/PigletFunctionRegistry.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/runtime/functions/PigletFunctionRegistry.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.runtime.functions;
 
 import java.util.Collections;
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/BagType.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/BagType.java
index 0d964b0..9aec8bb 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/BagType.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/BagType.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.types;
 
 public class BagType extends Type {
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/CharArrayType.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/CharArrayType.java
index ddb8e2b..4bef8ff 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/CharArrayType.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/CharArrayType.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.types;
 
 public class CharArrayType extends Type {
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/DoubleType.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/DoubleType.java
index f3a3a1b..8b7a0bd 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/DoubleType.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/DoubleType.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.types;
 
 public class DoubleType extends Type {
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/FloatType.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/FloatType.java
index 4e6a9d9..69f5db6 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/FloatType.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/FloatType.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.types;
 
 public class FloatType extends Type {
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/IntegerType.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/IntegerType.java
index 3e755c6..9c568df 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/IntegerType.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/IntegerType.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.types;
 
 public class IntegerType extends Type {
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/LongType.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/LongType.java
index e3af89a..b992afc 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/LongType.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/LongType.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.types;
 
 public class LongType extends Type {
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/MapType.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/MapType.java
index 74cf717..a46e40d 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/MapType.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/MapType.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.types;
 
 public class MapType extends Type {
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/Schema.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/Schema.java
index 8d6e559..1702353 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/Schema.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/Schema.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.types;
 
 import java.util.List;
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/TupleType.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/TupleType.java
index 4c68c2d..429026f 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/TupleType.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/TupleType.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.types;
 
 public class TupleType extends Type {
diff --git a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/Type.java b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/Type.java
index b8286e5..36efcea 100644
--- a/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/Type.java
+++ b/algebricks/algebricks-examples/piglet-example/src/main/java/edu/uci/ics/hyracks/algebricks/examples/piglet/types/Type.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.examples.piglet.types;
 
 public abstract class Type {
diff --git a/algebricks/algebricks-examples/piglet-example/src/test/java/edu/uci/ics/algebricks/examples/piglet/test/PigletTest.java b/algebricks/algebricks-examples/piglet-example/src/test/java/edu/uci/ics/algebricks/examples/piglet/test/PigletTest.java
index 7e027fa..e50b442 100644
--- a/algebricks/algebricks-examples/piglet-example/src/test/java/edu/uci/ics/algebricks/examples/piglet/test/PigletTest.java
+++ b/algebricks/algebricks-examples/piglet-example/src/test/java/edu/uci/ics/algebricks/examples/piglet/test/PigletTest.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.algebricks.examples.piglet.test;
 
 import java.io.File;
diff --git a/algebricks/algebricks-examples/piglet-example/src/test/java/edu/uci/ics/algebricks/examples/piglet/test/PigletTestCase.java b/algebricks/algebricks-examples/piglet-example/src/test/java/edu/uci/ics/algebricks/examples/piglet/test/PigletTestCase.java
index 1a329f6..082a0b0 100644
--- a/algebricks/algebricks-examples/piglet-example/src/test/java/edu/uci/ics/algebricks/examples/piglet/test/PigletTestCase.java
+++ b/algebricks/algebricks-examples/piglet-example/src/test/java/edu/uci/ics/algebricks/examples/piglet/test/PigletTestCase.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.algebricks.examples.piglet.test;
 
 import java.io.File;
diff --git a/algebricks/algebricks-examples/pom.xml b/algebricks/algebricks-examples/pom.xml
index a02379d..0376c13 100644
--- a/algebricks/algebricks-examples/pom.xml
+++ b/algebricks/algebricks-examples/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>algebricks-examples</artifactId>
@@ -7,7 +21,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>algebricks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <modules>
diff --git a/algebricks/algebricks-rewriter/pom.xml b/algebricks/algebricks-rewriter/pom.xml
index 9fd5aac..d81a479 100644
--- a/algebricks/algebricks-rewriter/pom.xml
+++ b/algebricks/algebricks-rewriter/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>algebricks-rewriter</artifactId>
@@ -6,7 +20,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>algebricks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -27,7 +41,7 @@
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>algebricks-core</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   	</dependency>
   </dependencies>
 </project>
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/AbstractDecorrelationRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/AbstractDecorrelationRule.java
index 3b7fa8c..fb3e96a 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/AbstractDecorrelationRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/AbstractDecorrelationRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/AbstractExtractExprRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/AbstractExtractExprRule.java
index 553165a..882db41 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/AbstractExtractExprRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/AbstractExtractExprRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/AbstractIntroduceCombinerRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/AbstractIntroduceCombinerRule.java
index 013ddda..c8a76fb 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/AbstractIntroduceCombinerRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/AbstractIntroduceCombinerRule.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.rewriter.rules;
 
 import java.util.ArrayList;
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/BreakSelectIntoConjunctsRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/BreakSelectIntoConjunctsRule.java
index 53b361b..0d17dbf 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/BreakSelectIntoConjunctsRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/BreakSelectIntoConjunctsRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/ComplexJoinInferenceRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/ComplexJoinInferenceRule.java
index 3daf85d..3cd1100 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/ComplexJoinInferenceRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/ComplexJoinInferenceRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/ComplexUnnestToProductRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/ComplexUnnestToProductRule.java
index 06172d9..5e6bcae 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/ComplexUnnestToProductRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/ComplexUnnestToProductRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/ConsolidateAssignsRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/ConsolidateAssignsRule.java
index e0220cc..4da332c 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/ConsolidateAssignsRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/ConsolidateAssignsRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/ConsolidateSelectsRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/ConsolidateSelectsRule.java
index ff9d921..e57bd3c 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/ConsolidateSelectsRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/ConsolidateSelectsRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/EliminateSubplanRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/EliminateSubplanRule.java
index 3e6ab6f..048e863 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/EliminateSubplanRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/EliminateSubplanRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/EnforceOrderByAfterSubplan.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/EnforceOrderByAfterSubplan.java
index 00670fa..a684bc9 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/EnforceOrderByAfterSubplan.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/EnforceOrderByAfterSubplan.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/EnforceStructuralPropertiesRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/EnforceStructuralPropertiesRule.java
index de2e6af..9292e07 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/EnforceStructuralPropertiesRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/EnforceStructuralPropertiesRule.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.rewriter.rules;
 
 import java.util.ArrayList;
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/ExtractCommonExpressionsRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/ExtractCommonExpressionsRule.java
index 9becf6e..9e0d8d0 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/ExtractCommonExpressionsRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/ExtractCommonExpressionsRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/ExtractCommonOperatorsRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/ExtractCommonOperatorsRule.java
index 0d20f28..06b3c06 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/ExtractCommonOperatorsRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/ExtractCommonOperatorsRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/ExtractGbyExpressionsRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/ExtractGbyExpressionsRule.java
index 8305bc9..2790166 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/ExtractGbyExpressionsRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/ExtractGbyExpressionsRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/FactorRedundantGroupAndDecorVarsRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/FactorRedundantGroupAndDecorVarsRule.java
index bfaff9f..6cb01f2 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/FactorRedundantGroupAndDecorVarsRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/FactorRedundantGroupAndDecorVarsRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/InferTypesRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/InferTypesRule.java
index 703567a..3530a5f 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/InferTypesRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/InferTypesRule.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.rewriter.rules;
 
 import org.apache.commons.lang3.mutable.Mutable;
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/InlineAssignIntoAggregateRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/InlineAssignIntoAggregateRule.java
index ca45cbb..99a1fae 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/InlineAssignIntoAggregateRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/InlineAssignIntoAggregateRule.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.rewriter.rules;
 
 import java.util.List;
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/InlineSingleReferenceVariablesRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/InlineSingleReferenceVariablesRule.java
index df8ddda..9ae94ba 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/InlineSingleReferenceVariablesRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/InlineSingleReferenceVariablesRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/InlineVariablesRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/InlineVariablesRule.java
index 7fed577..40b049b 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/InlineVariablesRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/InlineVariablesRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/InsertOuterJoinRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/InsertOuterJoinRule.java
index bea8817..c5aee3c 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/InsertOuterJoinRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/InsertOuterJoinRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/InsertProjectBeforeUnionRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/InsertProjectBeforeUnionRule.java
index 431fca1..80b8815 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/InsertProjectBeforeUnionRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/InsertProjectBeforeUnionRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/IntroHashPartitionMergeExchange.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/IntroHashPartitionMergeExchange.java
index f1321d3..af11b70 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/IntroHashPartitionMergeExchange.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/IntroHashPartitionMergeExchange.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.rewriter.rules;
 
 import java.util.ArrayList;
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/IntroJoinInsideSubplanRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/IntroJoinInsideSubplanRule.java
index d69cd14..8929623 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/IntroJoinInsideSubplanRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/IntroJoinInsideSubplanRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/IntroduceAggregateCombinerRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/IntroduceAggregateCombinerRule.java
index c75db57..ee1b7df 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/IntroduceAggregateCombinerRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/IntroduceAggregateCombinerRule.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.rewriter.rules;
 
 import java.util.HashMap;
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/IntroduceGroupByCombinerRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/IntroduceGroupByCombinerRule.java
index a8864fe..2a78a98 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/IntroduceGroupByCombinerRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/IntroduceGroupByCombinerRule.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.rewriter.rules;
 
 import java.util.ArrayList;
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/IntroduceGroupByForSubplanRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/IntroduceGroupByForSubplanRule.java
index 489167f..b918fc5 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/IntroduceGroupByForSubplanRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/IntroduceGroupByForSubplanRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/IntroduceProjectsRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/IntroduceProjectsRule.java
index a057f4f..3c96bc2 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/IntroduceProjectsRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/IntroduceProjectsRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/IsolateHyracksOperatorsRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/IsolateHyracksOperatorsRule.java
index ae57fb7..71af64b 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/IsolateHyracksOperatorsRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/IsolateHyracksOperatorsRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PullSelectOutOfEqJoin.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PullSelectOutOfEqJoin.java
index 8b4f0a1..2a0f6c3 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PullSelectOutOfEqJoin.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PullSelectOutOfEqJoin.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushAssignBelowUnionAllRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushAssignBelowUnionAllRule.java
index 1bcf95a..f03f4e3 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushAssignBelowUnionAllRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushAssignBelowUnionAllRule.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.rewriter.rules;
 
 import java.util.ArrayList;
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushAssignDownThroughProductRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushAssignDownThroughProductRule.java
index c105b51..d8523f6 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushAssignDownThroughProductRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushAssignDownThroughProductRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushFunctionsBelowJoin.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushFunctionsBelowJoin.java
index 16b010e..0d24618 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushFunctionsBelowJoin.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushFunctionsBelowJoin.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushLimitDownRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushLimitDownRule.java
index e5f60bc..a0bebaf 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushLimitDownRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushLimitDownRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushNestedOrderByUnderPreSortedGroupByRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushNestedOrderByUnderPreSortedGroupByRule.java
index 95ad030..476096d 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushNestedOrderByUnderPreSortedGroupByRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushNestedOrderByUnderPreSortedGroupByRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushProjectDownRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushProjectDownRule.java
index f223844..b8ff247 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushProjectDownRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushProjectDownRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushProjectIntoDataSourceScanRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushProjectIntoDataSourceScanRule.java
index 2cbbdbf..b17d50f 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushProjectIntoDataSourceScanRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushProjectIntoDataSourceScanRule.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.rewriter.rules;
 
 import org.apache.commons.lang3.mutable.Mutable;
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushSelectDownRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushSelectDownRule.java
index ef4fd2e..cc65996 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushSelectDownRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushSelectDownRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushSelectIntoJoinRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushSelectIntoJoinRule.java
index 99a6b8c..bf053f3 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushSelectIntoJoinRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushSelectIntoJoinRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushSubplanWithAggregateDownThroughProductRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushSubplanWithAggregateDownThroughProductRule.java
index d7bd543..9c15f77 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushSubplanWithAggregateDownThroughProductRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/PushSubplanWithAggregateDownThroughProductRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/ReinferAllTypesRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/ReinferAllTypesRule.java
index e18a380..aac3a18 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/ReinferAllTypesRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/ReinferAllTypesRule.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.rewriter.rules;
 
 import org.apache.commons.lang3.mutable.Mutable;
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/RemoveRedundantGroupByDecorVars.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/RemoveRedundantGroupByDecorVars.java
index 1106898..1862834 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/RemoveRedundantGroupByDecorVars.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/RemoveRedundantGroupByDecorVars.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/RemoveRedundantProjectionRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/RemoveRedundantProjectionRule.java
index f5ebe77..10091b8 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/RemoveRedundantProjectionRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/RemoveRedundantProjectionRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/RemoveRedundantVariablesRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/RemoveRedundantVariablesRule.java
index ec57be5..bc05181 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/RemoveRedundantVariablesRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/RemoveRedundantVariablesRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/RemoveUnusedAssignAndAggregateRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/RemoveUnusedAssignAndAggregateRule.java
index e0c2741..6e0d55c 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/RemoveUnusedAssignAndAggregateRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/RemoveUnusedAssignAndAggregateRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/SetAlgebricksPhysicalOperatorsRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/SetAlgebricksPhysicalOperatorsRule.java
index 9c8ad46..9efb078 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/SetAlgebricksPhysicalOperatorsRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/SetAlgebricksPhysicalOperatorsRule.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.rewriter.rules;
 
 import java.util.ArrayList;
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/SetExecutionModeRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/SetExecutionModeRule.java
index 5bc3432..d938f73 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/SetExecutionModeRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/SetExecutionModeRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/SimpleUnnestToProductRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/SimpleUnnestToProductRule.java
index b79c31b..7d43a68 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/SimpleUnnestToProductRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/SimpleUnnestToProductRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/SubplanOutOfGroupRule.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/SubplanOutOfGroupRule.java
index 09e03b5..f249122 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/SubplanOutOfGroupRule.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/rules/SubplanOutOfGroupRule.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/util/JoinUtils.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/util/JoinUtils.java
index ddc00e3..0881b50 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/util/JoinUtils.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/util/JoinUtils.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -46,14 +46,6 @@
 
 public class JoinUtils {
 
-    private final static int MB = 1048576;
-
-    private final static double DEFAULT_FUDGE_FACTOR = 1.3;
-    private final static int MAX_RECORDS_PER_FRAME = 512;
-    private final static int DEFAULT_FRAME_SIZE = 32768;
-    private final static int MAX_LEFT_INPUT_SIZE_HYBRID_HASH = (int) (140L * 1024 * MB / DEFAULT_FRAME_SIZE);
-    private final static int DEFAULT_MEMORY_SIZE_HYBRID_HASH = (int) (256L * MB / DEFAULT_FRAME_SIZE);
-
     public static void setJoinAlgorithmAndExchangeAlgo(AbstractBinaryJoinOperator op, IOptimizationContext context)
             throws AlgebricksException {
         List<LogicalVariable> sideLeft = new LinkedList<LogicalVariable>();
@@ -82,21 +74,23 @@
                 }
             }
         } else {
-            setNLJoinOp(op);
+            setNLJoinOp(op, context);
         }
     }
 
-    private static void setNLJoinOp(AbstractBinaryJoinOperator op) {
-        op.setPhysicalOperator(new NLJoinPOperator(op.getJoinKind(), JoinPartitioningType.BROADCAST,
-                DEFAULT_MEMORY_SIZE_HYBRID_HASH));
+    private static void setNLJoinOp(AbstractBinaryJoinOperator op, IOptimizationContext context) {
+        op.setPhysicalOperator(new NLJoinPOperator(op.getJoinKind(), JoinPartitioningType.BROADCAST, context
+                .getPhysicalOptimizationConfig().getMaxRecordsPerFrame()));
     }
 
     private static void setHashJoinOp(AbstractBinaryJoinOperator op, JoinPartitioningType partitioningType,
             List<LogicalVariable> sideLeft, List<LogicalVariable> sideRight, IOptimizationContext context)
             throws AlgebricksException {
         op.setPhysicalOperator(new HybridHashJoinPOperator(op.getJoinKind(), partitioningType, sideLeft, sideRight,
-                DEFAULT_MEMORY_SIZE_HYBRID_HASH, MAX_LEFT_INPUT_SIZE_HYBRID_HASH, MAX_RECORDS_PER_FRAME,
-                DEFAULT_FUDGE_FACTOR));
+                context.getPhysicalOptimizationConfig().getMaxFramesHybridHash(), context
+                        .getPhysicalOptimizationConfig().getMaxFramesLeftInputHybridHash(), context
+                        .getPhysicalOptimizationConfig().getMaxRecordsPerFrame(), context
+                        .getPhysicalOptimizationConfig().getFudgeFactor()));
         if (partitioningType == JoinPartitioningType.BROADCAST) {
             hybridToInMemHashJoin(op, context);
         }
diff --git a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/util/PhysicalOptimizationsUtil.java b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/util/PhysicalOptimizationsUtil.java
index d7ebfb4..ecacc05 100644
--- a/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/util/PhysicalOptimizationsUtil.java
+++ b/algebricks/algebricks-rewriter/src/main/java/edu/uci/ics/hyracks/algebricks/rewriter/util/PhysicalOptimizationsUtil.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.rewriter.util;
 
 import java.util.HashSet;
diff --git a/algebricks/algebricks-runtime/pom.xml b/algebricks/algebricks-runtime/pom.xml
index a2ad833..31b25be 100644
--- a/algebricks/algebricks-runtime/pom.xml
+++ b/algebricks/algebricks-runtime/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>algebricks-runtime</artifactId>
@@ -6,7 +20,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>algebricks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -27,27 +41,27 @@
   <dependency>
   	<groupId>edu.uci.ics.hyracks</groupId>
   	<artifactId>hyracks-storage-am-btree</artifactId>
-  	<version>0.2.6-SNAPSHOT</version>
+  	<version>0.2.7-SNAPSHOT</version>
   </dependency>
   <dependency>
   	<groupId>edu.uci.ics.hyracks</groupId>
   	<artifactId>hyracks-storage-am-rtree</artifactId>
-  	<version>0.2.6-SNAPSHOT</version>
+  	<version>0.2.7-SNAPSHOT</version>
   </dependency>
   <dependency>
   	<groupId>edu.uci.ics.hyracks</groupId>
   	<artifactId>hyracks-dataflow-std</artifactId>
-  	<version>0.2.6-SNAPSHOT</version>
+  	<version>0.2.7-SNAPSHOT</version>
   </dependency>
   <dependency>
   	<groupId>edu.uci.ics.hyracks</groupId>
   	<artifactId>algebricks-common</artifactId>
-  	<version>0.2.6-SNAPSHOT</version>
+  	<version>0.2.7-SNAPSHOT</version>
   </dependency>
   <dependency>
   	<groupId>edu.uci.ics.hyracks</groupId>
   	<artifactId>algebricks-data</artifactId>
-  	<version>0.2.6-SNAPSHOT</version>
+  	<version>0.2.7-SNAPSHOT</version>
   </dependency>
   </dependencies>
 </project>
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/aggregators/TupleCountAggregateFunctionFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/aggregators/TupleCountAggregateFunctionFactory.java
index 0658d62..594514c 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/aggregators/TupleCountAggregateFunctionFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/aggregators/TupleCountAggregateFunctionFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.runtime.aggregators;
 
 import java.io.IOException;
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/aggregators/TupleCountRunningAggregateFunctionFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/aggregators/TupleCountRunningAggregateFunctionFactory.java
index fa73f6c..37f2bca 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/aggregators/TupleCountRunningAggregateFunctionFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/aggregators/TupleCountRunningAggregateFunctionFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/AlgebricksPipeline.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/AlgebricksPipeline.java
index 50f014b..1f24aa1 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/AlgebricksPipeline.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/AlgebricksPipeline.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IAggregateEvaluator.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IAggregateEvaluator.java
index 9b014ee..99d7b91 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IAggregateEvaluator.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IAggregateEvaluator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.runtime.base;
 
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IAggregateEvaluatorFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IAggregateEvaluatorFactory.java
index 83bfbf7..1c8e1c7 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IAggregateEvaluatorFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IAggregateEvaluatorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopyAggregateFunction.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopyAggregateFunction.java
index c768674..fd21e98 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopyAggregateFunction.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopyAggregateFunction.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.runtime.base;
 
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopyAggregateFunctionFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopyAggregateFunctionFactory.java
index 702f392..e8ae777 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopyAggregateFunctionFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopyAggregateFunctionFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopyEvaluator.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopyEvaluator.java
index 58d7569..d593103 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopyEvaluator.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopyEvaluator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopyEvaluatorFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopyEvaluatorFactory.java
index 649902c..beb8e47 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopyEvaluatorFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopyEvaluatorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopyRunningAggregateFunction.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopyRunningAggregateFunction.java
index 3b14b28..8030425 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopyRunningAggregateFunction.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopyRunningAggregateFunction.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopyRunningAggregateFunctionFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopyRunningAggregateFunctionFactory.java
index 1065020..52982aa 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopyRunningAggregateFunctionFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopyRunningAggregateFunctionFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopySerializableAggregateFunction.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopySerializableAggregateFunction.java
index 47aec7d..a9649b0 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopySerializableAggregateFunction.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopySerializableAggregateFunction.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.runtime.base;
 
 import java.io.DataOutput;
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopySerializableAggregateFunctionFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopySerializableAggregateFunctionFactory.java
index 69d56a8..b813be0 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopySerializableAggregateFunctionFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopySerializableAggregateFunctionFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.runtime.base;
 
 import java.io.Serializable;
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopyUnnestingFunction.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopyUnnestingFunction.java
index 3443403..d3a8a1b 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopyUnnestingFunction.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopyUnnestingFunction.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopyUnnestingFunctionFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopyUnnestingFunctionFactory.java
index e43da8b..46083bd 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopyUnnestingFunctionFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/ICopyUnnestingFunctionFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IPushRuntime.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IPushRuntime.java
index 26fcc67..ff0c429 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IPushRuntime.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IPushRuntime.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IPushRuntimeFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IPushRuntimeFactory.java
index e5c7395..703bc1f 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IPushRuntimeFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IPushRuntimeFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -22,4 +22,4 @@
 
 public interface IPushRuntimeFactory extends Serializable {
     public IPushRuntime createPushRuntime(IHyracksTaskContext ctx) throws AlgebricksException, HyracksDataException;
-}
\ No newline at end of file
+}
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IRunningAggregateEvaluator.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IRunningAggregateEvaluator.java
index f76a33c..8f1fb23 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IRunningAggregateEvaluator.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IRunningAggregateEvaluator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IRunningAggregateEvaluatorFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IRunningAggregateEvaluatorFactory.java
index 80f6511..96cdc2f 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IRunningAggregateEvaluatorFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IRunningAggregateEvaluatorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IScalarEvaluator.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IScalarEvaluator.java
index e22097a..2480422 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IScalarEvaluator.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IScalarEvaluator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IScalarEvaluatorFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IScalarEvaluatorFactory.java
index e40b96c..037b8ed 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IScalarEvaluatorFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IScalarEvaluatorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IUnnestingEvaluator.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IUnnestingEvaluator.java
index f65192a..e102605 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IUnnestingEvaluator.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IUnnestingEvaluator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IUnnestingEvaluatorFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IUnnestingEvaluatorFactory.java
index 8bca2b9..02bc7a7 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IUnnestingEvaluatorFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/base/IUnnestingEvaluatorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/context/AsterixBTreeRegistry.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/context/AsterixBTreeRegistry.java
index 8ab92ee..62b7c96 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/context/AsterixBTreeRegistry.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/context/AsterixBTreeRegistry.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/evaluators/ColumnAccessEvalFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/evaluators/ColumnAccessEvalFactory.java
index 5f5d19c..1ba4bdf 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/evaluators/ColumnAccessEvalFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/evaluators/ColumnAccessEvalFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/evaluators/ConstantEvalFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/evaluators/ConstantEvalFactory.java
index c537c93..e637338 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/evaluators/ConstantEvalFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/evaluators/ConstantEvalFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/evaluators/ConstantEvaluatorFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/evaluators/ConstantEvaluatorFactory.java
index 4f7c35a..ecfd48d 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/evaluators/ConstantEvaluatorFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/evaluators/ConstantEvaluatorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/evaluators/TupleFieldEvaluatorFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/evaluators/TupleFieldEvaluatorFactory.java
index 29328ff..c84ca26 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/evaluators/TupleFieldEvaluatorFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/evaluators/TupleFieldEvaluatorFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.runtime.evaluators;
 
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/aggreg/AggregateRuntimeFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/aggreg/AggregateRuntimeFactory.java
index a975195..e00e64a 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/aggreg/AggregateRuntimeFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/aggreg/AggregateRuntimeFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/aggreg/NestedPlansAccumulatingAggregatorFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/aggreg/NestedPlansAccumulatingAggregatorFactory.java
index b60d9f3..8f2eaac 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/aggreg/NestedPlansAccumulatingAggregatorFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/aggreg/NestedPlansAccumulatingAggregatorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/aggreg/SerializableAggregatorDescriptorFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/aggreg/SerializableAggregatorDescriptorFactory.java
index 4d5d3d6..d4161fc 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/aggreg/SerializableAggregatorDescriptorFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/aggreg/SerializableAggregatorDescriptorFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.runtime.operators.aggreg;
 
 import java.io.DataOutput;
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/aggreg/SimpleAlgebricksAccumulatingAggregatorFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/aggreg/SimpleAlgebricksAccumulatingAggregatorFactory.java
index 76b6fcf..8e472ec 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/aggreg/SimpleAlgebricksAccumulatingAggregatorFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/aggreg/SimpleAlgebricksAccumulatingAggregatorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/base/AbstractOneInputOneOutputOneFramePushRuntime.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/base/AbstractOneInputOneOutputOneFramePushRuntime.java
index 1389605..082e98a 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/base/AbstractOneInputOneOutputOneFramePushRuntime.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/base/AbstractOneInputOneOutputOneFramePushRuntime.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/base/AbstractOneInputOneOutputPushRuntime.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/base/AbstractOneInputOneOutputPushRuntime.java
index 22f7df6..0d3febf 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/base/AbstractOneInputOneOutputPushRuntime.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/base/AbstractOneInputOneOutputPushRuntime.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/base/AbstractOneInputOneOutputRuntimeFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/base/AbstractOneInputOneOutputRuntimeFactory.java
index 3229847..43270b6 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/base/AbstractOneInputOneOutputRuntimeFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/base/AbstractOneInputOneOutputRuntimeFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/base/AbstractOneInputPushRuntime.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/base/AbstractOneInputPushRuntime.java
index e600264..47ebac1 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/base/AbstractOneInputPushRuntime.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/base/AbstractOneInputPushRuntime.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/base/AbstractOneInputSinkPushRuntime.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/base/AbstractOneInputSinkPushRuntime.java
index 0fbe51f..b328aab 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/base/AbstractOneInputSinkPushRuntime.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/base/AbstractOneInputSinkPushRuntime.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/base/AbstractOneInputSourcePushRuntime.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/base/AbstractOneInputSourcePushRuntime.java
index 1d23d14..8e71cd7 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/base/AbstractOneInputSourcePushRuntime.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/base/AbstractOneInputSourcePushRuntime.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/base/SinkRuntimeFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/base/SinkRuntimeFactory.java
index f175367..33f28c3 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/base/SinkRuntimeFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/base/SinkRuntimeFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/group/MicroPreClusteredGroupRuntimeFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/group/MicroPreClusteredGroupRuntimeFactory.java
index 388e6c9..200e5c5 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/group/MicroPreClusteredGroupRuntimeFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/group/MicroPreClusteredGroupRuntimeFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.runtime.operators.group;
 
 import java.nio.ByteBuffer;
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/meta/AlgebricksMetaOperatorDescriptor.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/meta/AlgebricksMetaOperatorDescriptor.java
index f2659f5..06ef109 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/meta/AlgebricksMetaOperatorDescriptor.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/meta/AlgebricksMetaOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/meta/PipelineAssembler.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/meta/PipelineAssembler.java
index 24b09cf..5bcf933 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/meta/PipelineAssembler.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/meta/PipelineAssembler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/meta/SubplanRuntimeFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/meta/SubplanRuntimeFactory.java
index 265941a..0499684 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/meta/SubplanRuntimeFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/meta/SubplanRuntimeFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/sort/InMemorySortRuntimeFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/sort/InMemorySortRuntimeFactory.java
index fd2710d..b299e78 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/sort/InMemorySortRuntimeFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/sort/InMemorySortRuntimeFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/AssignRuntimeFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/AssignRuntimeFactory.java
index e47384d..fa99c15 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/AssignRuntimeFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/AssignRuntimeFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/EmptyTupleSourceRuntimeFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/EmptyTupleSourceRuntimeFactory.java
index 72dbb2b..745fdf6 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/EmptyTupleSourceRuntimeFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/EmptyTupleSourceRuntimeFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/NestedTupleSourceRuntimeFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/NestedTupleSourceRuntimeFactory.java
index c897ba2..5486fae 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/NestedTupleSourceRuntimeFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/NestedTupleSourceRuntimeFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/PartitioningSplitOperatorDescriptor.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/PartitioningSplitOperatorDescriptor.java
index a54c96d..048dbc9 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/PartitioningSplitOperatorDescriptor.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/PartitioningSplitOperatorDescriptor.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.runtime.operators.std;
 
 import java.io.DataOutput;
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/PrinterRuntimeFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/PrinterRuntimeFactory.java
index 5b53fc2..c2ecc56 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/PrinterRuntimeFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/PrinterRuntimeFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/RunningAggregateRuntimeFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/RunningAggregateRuntimeFactory.java
index c15e050..e92724a 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/RunningAggregateRuntimeFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/RunningAggregateRuntimeFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/SinkWriterRuntime.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/SinkWriterRuntime.java
index 148f087..37ad4a9 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/SinkWriterRuntime.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/SinkWriterRuntime.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/SinkWriterRuntimeFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/SinkWriterRuntimeFactory.java
index 1aff1aa..a98bef3 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/SinkWriterRuntimeFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/SinkWriterRuntimeFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/StreamLimitRuntimeFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/StreamLimitRuntimeFactory.java
index 4e9d51c..0b3edc7 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/StreamLimitRuntimeFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/StreamLimitRuntimeFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.runtime.operators.std;
 
 import java.nio.ByteBuffer;
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/StreamProjectRuntimeFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/StreamProjectRuntimeFactory.java
index 0e6fc15..7f10948 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/StreamProjectRuntimeFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/StreamProjectRuntimeFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/StreamSelectRuntimeFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/StreamSelectRuntimeFactory.java
index b0c94b7..8632d62 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/StreamSelectRuntimeFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/StreamSelectRuntimeFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/StringStreamingRuntimeFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/StringStreamingRuntimeFactory.java
index 3f2765f..6f638c9 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/StringStreamingRuntimeFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/StringStreamingRuntimeFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/UnnestRuntimeFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/UnnestRuntimeFactory.java
index d42a294..df70437 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/UnnestRuntimeFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/operators/std/UnnestRuntimeFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/serializer/ResultSerializerFactoryProvider.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/serializer/ResultSerializerFactoryProvider.java
index 4f28c81..9f610f7 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/serializer/ResultSerializerFactoryProvider.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/serializer/ResultSerializerFactoryProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/writers/PrinterBasedWriterFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/writers/PrinterBasedWriterFactory.java
index 9c53241..bb7a748 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/writers/PrinterBasedWriterFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/writers/PrinterBasedWriterFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.runtime.writers;
 
 import java.io.PrintStream;
diff --git a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/writers/SerializedDataWriterFactory.java b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/writers/SerializedDataWriterFactory.java
index 61f822e..0658b3f 100644
--- a/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/writers/SerializedDataWriterFactory.java
+++ b/algebricks/algebricks-runtime/src/main/java/edu/uci/ics/hyracks/algebricks/runtime/writers/SerializedDataWriterFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.runtime.writers;
 
 import java.io.ByteArrayOutputStream;
diff --git a/algebricks/algebricks-tests/build-script.xml b/algebricks/algebricks-tests/build-script.xml
index cb41069..58739bc 100644
--- a/algebricks/algebricks-tests/build-script.xml
+++ b/algebricks/algebricks-tests/build-script.xml
@@ -1,4 +1,18 @@
 <?xml version="1.0"?>
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project name="asterix" default="build" basedir=".">
 
     <target name="init">
diff --git a/algebricks/algebricks-tests/pom.xml b/algebricks/algebricks-tests/pom.xml
index 031dfbe..271083d 100644
--- a/algebricks/algebricks-tests/pom.xml
+++ b/algebricks/algebricks-tests/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>algebricks-tests</artifactId>
@@ -6,7 +20,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>algebricks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -85,7 +99,7 @@
   <dependency>
   	<groupId>edu.uci.ics.hyracks</groupId>
   	<artifactId>algebricks-compiler</artifactId>
-  	<version>0.2.6-SNAPSHOT</version>
+  	<version>0.2.7-SNAPSHOT</version>
   </dependency>
   <dependency>
   	<groupId>junit</groupId>
@@ -96,17 +110,17 @@
   <dependency>
   	<groupId>edu.uci.ics.hyracks</groupId>
   	<artifactId>hyracks-control-cc</artifactId>
-  	<version>0.2.6-SNAPSHOT</version>
+  	<version>0.2.7-SNAPSHOT</version>
   </dependency>
   <dependency>
   	<groupId>edu.uci.ics.hyracks</groupId>
   	<artifactId>hyracks-control-nc</artifactId>
-  	<version>0.2.6-SNAPSHOT</version>
+  	<version>0.2.7-SNAPSHOT</version>
   </dependency>
   <dependency>
   	<groupId>edu.uci.ics.hyracks</groupId>
   	<artifactId>hyracks-data-std</artifactId>
-  	<version>0.2.6-SNAPSHOT</version>
+  	<version>0.2.7-SNAPSHOT</version>
   </dependency>
   </dependencies>
 </project>
diff --git a/algebricks/algebricks-tests/src/main/java/edu/uci/ics/hyracks/algebricks/tests/pushruntime/IntArrayUnnester.java b/algebricks/algebricks-tests/src/main/java/edu/uci/ics/hyracks/algebricks/tests/pushruntime/IntArrayUnnester.java
index bab293c..696ab15 100644
--- a/algebricks/algebricks-tests/src/main/java/edu/uci/ics/hyracks/algebricks/tests/pushruntime/IntArrayUnnester.java
+++ b/algebricks/algebricks-tests/src/main/java/edu/uci/ics/hyracks/algebricks/tests/pushruntime/IntArrayUnnester.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-tests/src/main/java/edu/uci/ics/hyracks/algebricks/tests/pushruntime/IntegerAddEvalFactory.java b/algebricks/algebricks-tests/src/main/java/edu/uci/ics/hyracks/algebricks/tests/pushruntime/IntegerAddEvalFactory.java
index cdfac91..d8de067 100644
--- a/algebricks/algebricks-tests/src/main/java/edu/uci/ics/hyracks/algebricks/tests/pushruntime/IntegerAddEvalFactory.java
+++ b/algebricks/algebricks-tests/src/main/java/edu/uci/ics/hyracks/algebricks/tests/pushruntime/IntegerAddEvalFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-tests/src/main/java/edu/uci/ics/hyracks/algebricks/tests/pushruntime/IntegerConstantEvalFactory.java b/algebricks/algebricks-tests/src/main/java/edu/uci/ics/hyracks/algebricks/tests/pushruntime/IntegerConstantEvalFactory.java
index 0eb9e88..f96ea9e 100644
--- a/algebricks/algebricks-tests/src/main/java/edu/uci/ics/hyracks/algebricks/tests/pushruntime/IntegerConstantEvalFactory.java
+++ b/algebricks/algebricks-tests/src/main/java/edu/uci/ics/hyracks/algebricks/tests/pushruntime/IntegerConstantEvalFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-tests/src/main/java/edu/uci/ics/hyracks/algebricks/tests/pushruntime/IntegerEqualsEvalFactory.java b/algebricks/algebricks-tests/src/main/java/edu/uci/ics/hyracks/algebricks/tests/pushruntime/IntegerEqualsEvalFactory.java
index d3d2938..6f51e1e 100644
--- a/algebricks/algebricks-tests/src/main/java/edu/uci/ics/hyracks/algebricks/tests/pushruntime/IntegerEqualsEvalFactory.java
+++ b/algebricks/algebricks-tests/src/main/java/edu/uci/ics/hyracks/algebricks/tests/pushruntime/IntegerEqualsEvalFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-tests/src/main/java/edu/uci/ics/hyracks/algebricks/tests/pushruntime/IntegerGreaterThanEvalFactory.java b/algebricks/algebricks-tests/src/main/java/edu/uci/ics/hyracks/algebricks/tests/pushruntime/IntegerGreaterThanEvalFactory.java
index 8f37922..e9bcc22 100644
--- a/algebricks/algebricks-tests/src/main/java/edu/uci/ics/hyracks/algebricks/tests/pushruntime/IntegerGreaterThanEvalFactory.java
+++ b/algebricks/algebricks-tests/src/main/java/edu/uci/ics/hyracks/algebricks/tests/pushruntime/IntegerGreaterThanEvalFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-tests/src/main/java/edu/uci/ics/hyracks/algebricks/tests/script/IdentityStreamingScript.java b/algebricks/algebricks-tests/src/main/java/edu/uci/ics/hyracks/algebricks/tests/script/IdentityStreamingScript.java
index c914c7c..a6536c8 100644
--- a/algebricks/algebricks-tests/src/main/java/edu/uci/ics/hyracks/algebricks/tests/script/IdentityStreamingScript.java
+++ b/algebricks/algebricks-tests/src/main/java/edu/uci/ics/hyracks/algebricks/tests/script/IdentityStreamingScript.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/algebricks/algebricks-tests/src/main/scripts/run.sh b/algebricks/algebricks-tests/src/main/scripts/run.sh
index a998626..25e9e28 100644
--- a/algebricks/algebricks-tests/src/main/scripts/run.sh
+++ b/algebricks/algebricks-tests/src/main/scripts/run.sh
@@ -1,4 +1,18 @@
 #!/bin/sh
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 # JAVA classpath
 # Use the local variable CLASSPATH to add custom entries (e.g. JDBC drivers) to
 # the classpath. Separate multiple paths with ":". Enclose the value
diff --git a/algebricks/algebricks-tests/src/test/java/edu/uci/ics/hyracks/algebricks/tests/pushruntime/PushRuntimeTest.java b/algebricks/algebricks-tests/src/test/java/edu/uci/ics/hyracks/algebricks/tests/pushruntime/PushRuntimeTest.java
index e3cd7d8..974dc4d 100644
--- a/algebricks/algebricks-tests/src/test/java/edu/uci/ics/hyracks/algebricks/tests/pushruntime/PushRuntimeTest.java
+++ b/algebricks/algebricks-tests/src/test/java/edu/uci/ics/hyracks/algebricks/tests/pushruntime/PushRuntimeTest.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.tests.pushruntime;
 
 import java.io.BufferedReader;
diff --git a/algebricks/algebricks-tests/src/test/java/edu/uci/ics/hyracks/algebricks/tests/tools/WriteValueTest.java b/algebricks/algebricks-tests/src/test/java/edu/uci/ics/hyracks/algebricks/tests/tools/WriteValueTest.java
index 25f2dc0..283f02a 100644
--- a/algebricks/algebricks-tests/src/test/java/edu/uci/ics/hyracks/algebricks/tests/tools/WriteValueTest.java
+++ b/algebricks/algebricks-tests/src/test/java/edu/uci/ics/hyracks/algebricks/tests/tools/WriteValueTest.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.algebricks.tests.tools;
 
 import java.io.DataOutput;
diff --git a/algebricks/algebricks-tests/src/test/java/edu/uci/ics/hyracks/algebricks/tests/util/AlgebricksHyracksIntegrationUtil.java b/algebricks/algebricks-tests/src/test/java/edu/uci/ics/hyracks/algebricks/tests/util/AlgebricksHyracksIntegrationUtil.java
index 2855eb2..fd59278 100644
--- a/algebricks/algebricks-tests/src/test/java/edu/uci/ics/hyracks/algebricks/tests/util/AlgebricksHyracksIntegrationUtil.java
+++ b/algebricks/algebricks-tests/src/test/java/edu/uci/ics/hyracks/algebricks/tests/util/AlgebricksHyracksIntegrationUtil.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/algebricks/pom.xml b/algebricks/pom.xml
index e1abc89..774b07d 100644
--- a/algebricks/pom.xml
+++ b/algebricks/pom.xml
@@ -1,8 +1,22 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <groupId>edu.uci.ics.hyracks</groupId>
   <artifactId>algebricks</artifactId>
-  <version>0.2.6-SNAPSHOT</version>
+  <version>0.2.7-SNAPSHOT</version>
   <packaging>pom</packaging>
   <name>algebricks</name>
 
diff --git a/hivesterix/HyracksCodeFormatProfile.xml b/hivesterix/HyracksCodeFormatProfile.xml
index 2cde66d..2ebb633 100755
--- a/hivesterix/HyracksCodeFormatProfile.xml
+++ b/hivesterix/HyracksCodeFormatProfile.xml
@@ -1,4 +1,18 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <profiles version="11">
 <profile kind="CodeFormatterProfile" name="HyracksCodeFormatProfile" version="11">
 <setting id="org.eclipse.jdt.core.formatter.comment.insert_new_line_before_root_tags" value="insert"/>
diff --git a/hivesterix/hivesterix-common/pom.xml b/hivesterix/hivesterix-common/pom.xml
index 2dbb788..7741193 100644
--- a/hivesterix/hivesterix-common/pom.xml
+++ b/hivesterix/hivesterix-common/pom.xml
@@ -1,4 +1,18 @@
 <?xml version="1.0"?>
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>hivesterix-common</artifactId>
@@ -7,7 +21,7 @@
 	<parent>
 		<artifactId>hivesterix</artifactId>
 		<groupId>edu.uci.ics.hyracks</groupId>
-		<version>0.2.6-SNAPSHOT</version>
+		<version>0.2.7-SNAPSHOT</version>
 	</parent>
 
 	<build>
@@ -30,21 +44,21 @@
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-api</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>algebricks-compiler</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-hdfs-core</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
diff --git a/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/common/config/ConfUtil.java b/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/common/config/ConfUtil.java
index 648deb6..20deac9 100644
--- a/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/common/config/ConfUtil.java
+++ b/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/common/config/ConfUtil.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.common.config;
 
 import java.io.BufferedReader;
diff --git a/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/ExpressionConstant.java b/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/ExpressionConstant.java
index 8fb715b..435ade1 100644
--- a/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/ExpressionConstant.java
+++ b/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/ExpressionConstant.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.logical.expression;
 
 /**
diff --git a/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/ExpressionTranslator.java b/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/ExpressionTranslator.java
index 662ed83..783004c 100644
--- a/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/ExpressionTranslator.java
+++ b/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/ExpressionTranslator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.logical.expression;
 
 import java.util.ArrayList;
diff --git a/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/HiveAlgebricksBuiltInFunctionMap.java b/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/HiveAlgebricksBuiltInFunctionMap.java
index 56890eb..5d7ec53 100644
--- a/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/HiveAlgebricksBuiltInFunctionMap.java
+++ b/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/HiveAlgebricksBuiltInFunctionMap.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.logical.expression;
 
 import java.util.HashMap;
diff --git a/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/HiveExpressionTypeComputer.java b/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/HiveExpressionTypeComputer.java
index e10e8c1..dbfa565 100644
--- a/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/HiveExpressionTypeComputer.java
+++ b/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/HiveExpressionTypeComputer.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.logical.expression;
 
 import java.util.ArrayList;
diff --git a/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/HiveFunctionInfo.java b/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/HiveFunctionInfo.java
index ced8d02..4f4ca90 100644
--- a/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/HiveFunctionInfo.java
+++ b/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/HiveFunctionInfo.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.logical.expression;
 
 import java.io.Serializable;
diff --git a/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/HiveMergeAggregationExpressionFactory.java b/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/HiveMergeAggregationExpressionFactory.java
index b77fe49..b7bb637 100644
--- a/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/HiveMergeAggregationExpressionFactory.java
+++ b/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/HiveMergeAggregationExpressionFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.logical.expression;
 
 import java.util.ArrayList;
diff --git a/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/HiveNullableTypeComputer.java b/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/HiveNullableTypeComputer.java
index 906e3ce..75e23a7 100644
--- a/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/HiveNullableTypeComputer.java
+++ b/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/HiveNullableTypeComputer.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.logical.expression;
 
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
diff --git a/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/HivePartialAggregationTypeComputer.java b/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/HivePartialAggregationTypeComputer.java
index c74966c..baf3f76 100644
--- a/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/HivePartialAggregationTypeComputer.java
+++ b/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/HivePartialAggregationTypeComputer.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.logical.expression;
 
 import java.util.ArrayList;
diff --git a/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/HivesterixConstantValue.java b/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/HivesterixConstantValue.java
index 3d35e1f..ed71644 100644
--- a/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/HivesterixConstantValue.java
+++ b/hivesterix/hivesterix-common/src/main/java/edu/uci/ics/hivesterix/logical/expression/HivesterixConstantValue.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.logical.expression;
 
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IAlgebricksConstantValue;
diff --git a/hivesterix/hivesterix-common/src/test/java/edu/uci/ics/hyracks/AppTest.java b/hivesterix/hivesterix-common/src/test/java/edu/uci/ics/hyracks/AppTest.java
index 0c701c8..2476239 100644
--- a/hivesterix/hivesterix-common/src/test/java/edu/uci/ics/hyracks/AppTest.java
+++ b/hivesterix/hivesterix-common/src/test/java/edu/uci/ics/hyracks/AppTest.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks;
 
 import junit.framework.Test;
diff --git a/hivesterix/hivesterix-dist/conf/cluster.properties b/hivesterix/hivesterix-dist/conf/cluster.properties
index 2d2401a..bb619be 100644
--- a/hivesterix/hivesterix-dist/conf/cluster.properties
+++ b/hivesterix/hivesterix-dist/conf/cluster.properties
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #The CC port for Hyracks clients
 CC_CLIENTPORT=3099
 
diff --git a/hivesterix/hivesterix-dist/conf/debugnc.properties b/hivesterix/hivesterix-dist/conf/debugnc.properties
index 27afa26..23e04c6 100755
--- a/hivesterix/hivesterix-dist/conf/debugnc.properties
+++ b/hivesterix/hivesterix-dist/conf/debugnc.properties
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #The tmp directory for nc to install jars
 NCTMP_DIR2=/tmp/t-1
 
diff --git a/hivesterix/hivesterix-dist/conf/hive-default.xml b/hivesterix/hivesterix-dist/conf/hive-default.xml
index 587eede..1fce28e 100644
--- a/hivesterix/hivesterix-dist/conf/hive-default.xml
+++ b/hivesterix/hivesterix-dist/conf/hive-default.xml
@@ -1,4 +1,18 @@
 <?xml version="1.0"?>
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
 
 <configuration>
diff --git a/hivesterix/hivesterix-dist/conf/hive-log4j.properties b/hivesterix/hivesterix-dist/conf/hive-log4j.properties
index 784a274..eab38a6 100644
--- a/hivesterix/hivesterix-dist/conf/hive-log4j.properties
+++ b/hivesterix/hivesterix-dist/conf/hive-log4j.properties
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #------------------------------------------------------------------------------
 #
 #  The following properties set the logging levels and log appender.  The
diff --git a/hivesterix/hivesterix-dist/pom.xml b/hivesterix/hivesterix-dist/pom.xml
index 5f4c46b..8ecdfe1 100644
--- a/hivesterix/hivesterix-dist/pom.xml
+++ b/hivesterix/hivesterix-dist/pom.xml
@@ -1,14 +1,26 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
 	<modelVersion>4.0.0</modelVersion>
-	<groupId>edu.uci.ics.hyracks</groupId>
 	<artifactId>hivesterix-dist</artifactId>
-	<version>0.2.6-SNAPSHOT</version>
 	<name>hivesterix-dist</name>
 
 	<parent>
                 <groupId>edu.uci.ics.hyracks</groupId>
                 <artifactId>hivesterix</artifactId>
-                <version>0.2.6-SNAPSHOT</version>
+                <version>0.2.7-SNAPSHOT</version>
         </parent>
 
 	<dependencies>
@@ -276,14 +288,14 @@
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hivesterix-translator</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hivesterix-optimizer</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
@@ -297,21 +309,21 @@
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>algebricks-compiler</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-control-cc</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-control-nc</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
diff --git a/hivesterix/hivesterix-dist/resource/asterix/destroy.sh b/hivesterix/hivesterix-dist/resource/asterix/destroy.sh
index 9ece8d6..b7a3fdb 100644
--- a/hivesterix/hivesterix-dist/resource/asterix/destroy.sh
+++ b/hivesterix/hivesterix-dist/resource/asterix/destroy.sh
@@ -1,2 +1,16 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 connect to "localhost:3099";
 destroy application hivex;
diff --git a/hivesterix/hivesterix-dist/resource/asterix/startall.sh b/hivesterix/hivesterix-dist/resource/asterix/startall.sh
index e28ae27..d4d86a8 100755
--- a/hivesterix/hivesterix-dist/resource/asterix/startall.sh
+++ b/hivesterix/hivesterix-dist/resource/asterix/startall.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 ssh asterix-master './hivesterix/target/appassembler/asterix/startcc.sh'&
 sleep 20
 ssh asterix-001 './hivesterix/target/appassembler/asterix/startnc.sh'&
diff --git a/hivesterix/hivesterix-dist/resource/asterix/startcc.sh b/hivesterix/hivesterix-dist/resource/asterix/startcc.sh
index f313a9f..9806a21 100755
--- a/hivesterix/hivesterix-dist/resource/asterix/startcc.sh
+++ b/hivesterix/hivesterix-dist/resource/asterix/startcc.sh
@@ -1,4 +1,18 @@
 #!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 
 LOGSDIR=/mnt/data/sda/space/yingyi/hyracks/logs
 HYRACKS_HOME=/home/yingyib/hyracks_asterix_stabilization
diff --git a/hivesterix/hivesterix-dist/resource/asterix/startnc.sh b/hivesterix/hivesterix-dist/resource/asterix/startnc.sh
index 6cbd5e9..bb23f19 100755
--- a/hivesterix/hivesterix-dist/resource/asterix/startnc.sh
+++ b/hivesterix/hivesterix-dist/resource/asterix/startnc.sh
@@ -1,4 +1,18 @@
 #!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 
 export JAVA_HOME=/usr/local/java/vms/java
 
diff --git a/hivesterix/hivesterix-dist/resource/asterix/stopall.sh b/hivesterix/hivesterix-dist/resource/asterix/stopall.sh
index 7cd5a5a..dae9982 100755
--- a/hivesterix/hivesterix-dist/resource/asterix/stopall.sh
+++ b/hivesterix/hivesterix-dist/resource/asterix/stopall.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 ssh asterix-master './hivesterix/target/appassembler/asterix/stopcc.sh'&
 ssh asterix-001 '/home/yingyib/hivesterix/target/appassembler/asterix/stopnc.sh'&
 ssh asterix-002 '/home/yingyib/hivesterix/target/appassembler/asterix/stopnc.sh'&
diff --git a/hivesterix/hivesterix-dist/resource/asterix/stopcc.sh b/hivesterix/hivesterix-dist/resource/asterix/stopcc.sh
index 51a1066..75b988b 100755
--- a/hivesterix/hivesterix-dist/resource/asterix/stopcc.sh
+++ b/hivesterix/hivesterix-dist/resource/asterix/stopcc.sh
@@ -1,4 +1,18 @@
 #!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 
 PID=`/usr/local/java/vms/java/bin/jps | grep CCDriver | awk '{print $1}'`
 
diff --git a/hivesterix/hivesterix-dist/resource/asterix/stopnc.sh b/hivesterix/hivesterix-dist/resource/asterix/stopnc.sh
index 77cecfc..264ab45 100755
--- a/hivesterix/hivesterix-dist/resource/asterix/stopnc.sh
+++ b/hivesterix/hivesterix-dist/resource/asterix/stopnc.sh
@@ -1,4 +1,18 @@
 #!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 
 #PID=`/usr/local/java/vms/java/bin/jps | grep NCDriver | awk '{print $1}'`
 
diff --git a/hivesterix/hivesterix-dist/resource/asterix_dbg/destroy.sh b/hivesterix/hivesterix-dist/resource/asterix_dbg/destroy.sh
index 9ece8d6..b7a3fdb 100644
--- a/hivesterix/hivesterix-dist/resource/asterix_dbg/destroy.sh
+++ b/hivesterix/hivesterix-dist/resource/asterix_dbg/destroy.sh
@@ -1,2 +1,16 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 connect to "localhost:3099";
 destroy application hivex;
diff --git a/hivesterix/hivesterix-dist/resource/asterix_dbg/startall.sh b/hivesterix/hivesterix-dist/resource/asterix_dbg/startall.sh
index 24e57c4..126782b 100755
--- a/hivesterix/hivesterix-dist/resource/asterix_dbg/startall.sh
+++ b/hivesterix/hivesterix-dist/resource/asterix_dbg/startall.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 HYRACKS_HOME=/home/yingyib/hyracks-0.1.5
 
 ssh asterix-master ./hivesterix/target/appassembler/asterix_dbg/startcc.sh
diff --git a/hivesterix/hivesterix-dist/resource/asterix_dbg/startcc.sh b/hivesterix/hivesterix-dist/resource/asterix_dbg/startcc.sh
index 5a0043e..bf0571b 100755
--- a/hivesterix/hivesterix-dist/resource/asterix_dbg/startcc.sh
+++ b/hivesterix/hivesterix-dist/resource/asterix_dbg/startcc.sh
@@ -1,4 +1,18 @@
 #!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 
 LOGSDIR=/mnt/data/sda/space/yingyi/hyracks/logs
 HYRACKS_HOME=/home/yingyib/hyracks-0.1.5
diff --git a/hivesterix/hivesterix-dist/resource/asterix_dbg/startnc.sh b/hivesterix/hivesterix-dist/resource/asterix_dbg/startnc.sh
index 5a6024b..5063d4d 100755
--- a/hivesterix/hivesterix-dist/resource/asterix_dbg/startnc.sh
+++ b/hivesterix/hivesterix-dist/resource/asterix_dbg/startnc.sh
@@ -1,4 +1,18 @@
 #!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 
 export JAVA_HOME=/usr/local/java/vms/java
 
diff --git a/hivesterix/hivesterix-dist/resource/asterix_dbg/stopall.sh b/hivesterix/hivesterix-dist/resource/asterix_dbg/stopall.sh
index e2295f1..a6c34b3 100755
--- a/hivesterix/hivesterix-dist/resource/asterix_dbg/stopall.sh
+++ b/hivesterix/hivesterix-dist/resource/asterix_dbg/stopall.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 ssh asterix-master ./hivesterix/target/appassembler/asterix_dbg/stopcc.sh
 ssh asterix-001 ./hivesterix/target/appassembler/asterix_dbg/stopnc.sh
 ssh asterix-002 ./hivesterix/target/appassembler/asterix_dbg/stopnc.sh
diff --git a/hivesterix/hivesterix-dist/resource/asterix_dbg/stopcc.sh b/hivesterix/hivesterix-dist/resource/asterix_dbg/stopcc.sh
index 51a1066..75b988b 100755
--- a/hivesterix/hivesterix-dist/resource/asterix_dbg/stopcc.sh
+++ b/hivesterix/hivesterix-dist/resource/asterix_dbg/stopcc.sh
@@ -1,4 +1,18 @@
 #!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 
 PID=`/usr/local/java/vms/java/bin/jps | grep CCDriver | awk '{print $1}'`
 
diff --git a/hivesterix/hivesterix-dist/resource/asterix_dbg/stopnc.sh b/hivesterix/hivesterix-dist/resource/asterix_dbg/stopnc.sh
index 6bbbb3b..839c30e 100755
--- a/hivesterix/hivesterix-dist/resource/asterix_dbg/stopnc.sh
+++ b/hivesterix/hivesterix-dist/resource/asterix_dbg/stopnc.sh
@@ -1,4 +1,18 @@
 #!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 
 #PID=`/usr/local/java/vms/java/bin/jps | grep NCDriver | awk '{print $1}'`
 
diff --git a/hivesterix/hivesterix-dist/resource/bin/ext/cli.sh b/hivesterix/hivesterix-dist/resource/bin/ext/cli.sh
index 914aae3..b50f40b 100644
--- a/hivesterix/hivesterix-dist/resource/bin/ext/cli.sh
+++ b/hivesterix/hivesterix-dist/resource/bin/ext/cli.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.
diff --git a/hivesterix/hivesterix-dist/resource/bin/ext/help.sh b/hivesterix/hivesterix-dist/resource/bin/ext/help.sh
index 432859a..ee4a819 100644
--- a/hivesterix/hivesterix-dist/resource/bin/ext/help.sh
+++ b/hivesterix/hivesterix-dist/resource/bin/ext/help.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.
diff --git a/hivesterix/hivesterix-dist/resource/bin/ext/hiveserver.sh b/hivesterix/hivesterix-dist/resource/bin/ext/hiveserver.sh
index b5edce4..6b68ea0 100644
--- a/hivesterix/hivesterix-dist/resource/bin/ext/hiveserver.sh
+++ b/hivesterix/hivesterix-dist/resource/bin/ext/hiveserver.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.
diff --git a/hivesterix/hivesterix-dist/resource/bin/ext/hwi.sh b/hivesterix/hivesterix-dist/resource/bin/ext/hwi.sh
index f9cd8ec..0b7905e 100644
--- a/hivesterix/hivesterix-dist/resource/bin/ext/hwi.sh
+++ b/hivesterix/hivesterix-dist/resource/bin/ext/hwi.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.
diff --git a/hivesterix/hivesterix-dist/resource/bin/ext/jar.sh b/hivesterix/hivesterix-dist/resource/bin/ext/jar.sh
index b52f9a7..08dd8c7 100644
--- a/hivesterix/hivesterix-dist/resource/bin/ext/jar.sh
+++ b/hivesterix/hivesterix-dist/resource/bin/ext/jar.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.
diff --git a/hivesterix/hivesterix-dist/resource/bin/ext/lineage.sh b/hivesterix/hivesterix-dist/resource/bin/ext/lineage.sh
index 993bc8d..7d8ea0d 100644
--- a/hivesterix/hivesterix-dist/resource/bin/ext/lineage.sh
+++ b/hivesterix/hivesterix-dist/resource/bin/ext/lineage.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.
diff --git a/hivesterix/hivesterix-dist/resource/bin/ext/metastore.sh b/hivesterix/hivesterix-dist/resource/bin/ext/metastore.sh
index db15f6e..34c56d5 100644
--- a/hivesterix/hivesterix-dist/resource/bin/ext/metastore.sh
+++ b/hivesterix/hivesterix-dist/resource/bin/ext/metastore.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.
diff --git a/hivesterix/hivesterix-dist/resource/bin/ext/rcfilecat.sh b/hivesterix/hivesterix-dist/resource/bin/ext/rcfilecat.sh
index 3a9264b..6df6612 100644
--- a/hivesterix/hivesterix-dist/resource/bin/ext/rcfilecat.sh
+++ b/hivesterix/hivesterix-dist/resource/bin/ext/rcfilecat.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.
diff --git a/hivesterix/hivesterix-dist/resource/bin/ext/util/execHiveCmd.sh b/hivesterix/hivesterix-dist/resource/bin/ext/util/execHiveCmd.sh
index 167cc40..a7d84b8 100644
--- a/hivesterix/hivesterix-dist/resource/bin/ext/util/execHiveCmd.sh
+++ b/hivesterix/hivesterix-dist/resource/bin/ext/util/execHiveCmd.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.
diff --git a/hivesterix/hivesterix-dist/resource/bin/hive-config.sh b/hivesterix/hivesterix-dist/resource/bin/hive-config.sh
index 2524bbc..c45878f 100755
--- a/hivesterix/hivesterix-dist/resource/bin/hive-config.sh
+++ b/hivesterix/hivesterix-dist/resource/bin/hive-config.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.
diff --git a/hivesterix/hivesterix-dist/resource/bin/init-hive-dfs.sh b/hivesterix/hivesterix-dist/resource/bin/init-hive-dfs.sh
index ec3997a..b19ce83 100755
--- a/hivesterix/hivesterix-dist/resource/bin/init-hive-dfs.sh
+++ b/hivesterix/hivesterix-dist/resource/bin/init-hive-dfs.sh
@@ -1,4 +1,18 @@
 #!/usr/bin/env bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
diff --git a/hivesterix/hivesterix-dist/resource/deploy/deploy.sh b/hivesterix/hivesterix-dist/resource/deploy/deploy.sh
index 27cfd39..590d44e 100755
--- a/hivesterix/hivesterix-dist/resource/deploy/deploy.sh
+++ b/hivesterix/hivesterix-dist/resource/deploy/deploy.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 mvn -e deploy:deploy-file -Durl=http://obelix.ics.uci.edu/nexus/content/repositories/third-party/ -DrepositoryId=third-party -Dfile=$HIVE_HOME/lib/hive-anttasks-0.7.0.jar -DgroupId=org.apache.hadoop.hive -DartifactId=hive-anttasks -Dversion=0.7.0 -Dpackaging=jar
 mvn -e deploy:deploy-file -Durl=http://obelix.ics.uci.edu/nexus/content/repositories/third-party/ -DrepositoryId=third-party -Dfile=$HIVE_HOME/lib/hive-cli-0.7.0.jar -DgroupId=org.apache.hadoop.hive -DartifactId=hive-cli -Dversion=0.7.0 -Dpackaging=jar
 mvn -e deploy:deploy-file -Durl=http://obelix.ics.uci.edu/nexus/content/repositories/third-party/ -DrepositoryId=third-party -Dfile=$HIVE_HOME/lib/hive-common-0.7.0.jar -DgroupId=org.apache.hadoop.hive -DartifactId=hive-common -Dversion=0.7.0 -Dpackaging=jar
diff --git a/hivesterix/hivesterix-dist/resource/deploy/jar.sh b/hivesterix/hivesterix-dist/resource/deploy/jar.sh
index a19b1b8..8e17c09 100755
--- a/hivesterix/hivesterix-dist/resource/deploy/jar.sh
+++ b/hivesterix/hivesterix-dist/resource/deploy/jar.sh
@@ -1 +1,15 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 jar cmf manifest.txt .
diff --git a/hivesterix/hivesterix-dist/resource/hivesterix/execute.sh b/hivesterix/hivesterix-dist/resource/hivesterix/execute.sh
index e9f7ace..c46c506 100755
--- a/hivesterix/hivesterix-dist/resource/hivesterix/execute.sh
+++ b/hivesterix/hivesterix-dist/resource/hivesterix/execute.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 LOG=perflog/result.log
 echo "">$LOG
 
diff --git a/hivesterix/hivesterix-dist/resource/hivesterix/loop.sh b/hivesterix/hivesterix-dist/resource/hivesterix/loop.sh
index f67896c..5aaca3c 100755
--- a/hivesterix/hivesterix-dist/resource/hivesterix/loop.sh
+++ b/hivesterix/hivesterix-dist/resource/hivesterix/loop.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 for((i=1; i<=10; i++))
 do
 	./execute.sh tpch_sample $i
diff --git a/hivesterix/hivesterix-dist/resource/hivesterix/perf.sh b/hivesterix/hivesterix-dist/resource/hivesterix/perf.sh
index c1d5c0a..c66d95e 100755
--- a/hivesterix/hivesterix-dist/resource/hivesterix/perf.sh
+++ b/hivesterix/hivesterix-dist/resource/hivesterix/perf.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #asterix/stopall.sh
 
 #$HADOOP_HOME/bin/stop-all.sh
diff --git a/hivesterix/hivesterix-dist/resource/hivesterix/startcluster.sh b/hivesterix/hivesterix-dist/resource/hivesterix/startcluster.sh
index e7ad708..96b1f1c 100755
--- a/hivesterix/hivesterix-dist/resource/hivesterix/startcluster.sh
+++ b/hivesterix/hivesterix-dist/resource/hivesterix/startcluster.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 ../asterix/stopall.sh
 $HADOOP_HOME/bin/stop-all.sh
 sleep 10
diff --git a/hivesterix/hivesterix-dist/resource/hivesterix/stress.sh b/hivesterix/hivesterix-dist/resource/hivesterix/stress.sh
index 8dec4c3..34ecd95 100755
--- a/hivesterix/hivesterix-dist/resource/hivesterix/stress.sh
+++ b/hivesterix/hivesterix-dist/resource/hivesterix/stress.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 for((i=1; i<=3; i++))
 do
 	./startcluster.sh
diff --git a/hivesterix/hivesterix-dist/src/main/assembly/binary-assembly.xml b/hivesterix/hivesterix-dist/src/main/assembly/binary-assembly.xml
index de3757f..aeb3fb4 100755
--- a/hivesterix/hivesterix-dist/src/main/assembly/binary-assembly.xml
+++ b/hivesterix/hivesterix-dist/src/main/assembly/binary-assembly.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <assembly>
 	<id>binary-assembly</id>
 	<formats>
diff --git a/hivesterix/hivesterix-dist/src/main/java/edu/uci/ics/hivesterix/runtime/exec/HyracksExecutionEngine.java b/hivesterix/hivesterix-dist/src/main/java/edu/uci/ics/hivesterix/runtime/exec/HyracksExecutionEngine.java
index 53c9d42..d3bcaca 100644
--- a/hivesterix/hivesterix-dist/src/main/java/edu/uci/ics/hivesterix/runtime/exec/HyracksExecutionEngine.java
+++ b/hivesterix/hivesterix-dist/src/main/java/edu/uci/ics/hivesterix/runtime/exec/HyracksExecutionEngine.java
@@ -1,595 +1,612 @@
-package edu.uci.ics.hivesterix.runtime.exec;
-
-import java.io.BufferedReader;
-import java.io.FileInputStream;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.io.PrintWriter;
-import java.io.Serializable;
-import java.net.InetAddress;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Map;
-import java.util.Map.Entry;
-import java.util.Properties;
-import java.util.Set;
-
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-import org.apache.hadoop.hive.conf.HiveConf;
-import org.apache.hadoop.hive.ql.exec.ConditionalTask;
-import org.apache.hadoop.hive.ql.exec.FileSinkOperator;
-import org.apache.hadoop.hive.ql.exec.MapRedTask;
-import org.apache.hadoop.hive.ql.exec.Operator;
-import org.apache.hadoop.hive.ql.exec.TableScanOperator;
-import org.apache.hadoop.hive.ql.exec.Task;
-import org.apache.hadoop.hive.ql.plan.DynamicPartitionCtx;
-import org.apache.hadoop.hive.ql.plan.FetchWork;
-import org.apache.hadoop.hive.ql.plan.FileSinkDesc;
-import org.apache.hadoop.hive.ql.plan.MapredLocalWork;
-import org.apache.hadoop.hive.ql.plan.MapredWork;
-import org.apache.hadoop.hive.ql.plan.PartitionDesc;
-import org.apache.hadoop.hive.ql.plan.TableScanDesc;
-
-import edu.uci.ics.hivesterix.common.config.ConfUtil;
-import edu.uci.ics.hivesterix.logical.expression.HiveExpressionTypeComputer;
-import edu.uci.ics.hivesterix.logical.expression.HiveMergeAggregationExpressionFactory;
-import edu.uci.ics.hivesterix.logical.expression.HiveNullableTypeComputer;
-import edu.uci.ics.hivesterix.logical.expression.HivePartialAggregationTypeComputer;
-import edu.uci.ics.hivesterix.logical.plan.HiveAlgebricksTranslator;
-import edu.uci.ics.hivesterix.logical.plan.HiveLogicalPlanAndMetaData;
-import edu.uci.ics.hivesterix.optimizer.rulecollections.HiveRuleCollections;
-import edu.uci.ics.hivesterix.runtime.factory.evaluator.HiveExpressionRuntimeProvider;
-import edu.uci.ics.hivesterix.runtime.factory.nullwriter.HiveNullWriterFactory;
-import edu.uci.ics.hivesterix.runtime.inspector.HiveBinaryBooleanInspectorFactory;
-import edu.uci.ics.hivesterix.runtime.inspector.HiveBinaryIntegerInspectorFactory;
-import edu.uci.ics.hivesterix.runtime.jobgen.HiveConnectorPolicyAssignmentPolicy;
-import edu.uci.ics.hivesterix.runtime.jobgen.HiveConnectorPolicyAssignmentPolicy.Policy;
-import edu.uci.ics.hivesterix.runtime.provider.HiveBinaryComparatorFactoryProvider;
-import edu.uci.ics.hivesterix.runtime.provider.HiveBinaryHashFunctionFactoryProvider;
-import edu.uci.ics.hivesterix.runtime.provider.HiveBinaryHashFunctionFamilyProvider;
-import edu.uci.ics.hivesterix.runtime.provider.HiveNormalizedKeyComputerFactoryProvider;
-import edu.uci.ics.hivesterix.runtime.provider.HivePrinterFactoryProvider;
-import edu.uci.ics.hivesterix.runtime.provider.HiveSerializerDeserializerProvider;
-import edu.uci.ics.hivesterix.runtime.provider.HiveTypeTraitProvider;
-import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksAbsolutePartitionConstraint;
-import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
-import edu.uci.ics.hyracks.algebricks.compiler.api.HeuristicCompilerFactoryBuilder;
-import edu.uci.ics.hyracks.algebricks.compiler.api.HeuristicCompilerFactoryBuilder.DefaultOptimizationContextFactory;
-import edu.uci.ics.hyracks.algebricks.compiler.api.ICompiler;
-import edu.uci.ics.hyracks.algebricks.compiler.api.ICompilerFactory;
-import edu.uci.ics.hyracks.algebricks.compiler.rewriter.rulecontrollers.SequentialFixpointRuleController;
-import edu.uci.ics.hyracks.algebricks.compiler.rewriter.rulecontrollers.SequentialOnceRuleController;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalPlan;
-import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalPlanAndMetadata;
-import edu.uci.ics.hyracks.algebricks.core.algebra.prettyprint.LogicalOperatorPrettyPrintVisitor;
-import edu.uci.ics.hyracks.algebricks.core.algebra.prettyprint.PlanPrettyPrinter;
-import edu.uci.ics.hyracks.algebricks.core.rewriter.base.AbstractRuleController;
-import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
-import edu.uci.ics.hyracks.algebricks.core.rewriter.base.PhysicalOptimizationConfig;
-import edu.uci.ics.hyracks.api.client.HyracksConnection;
-import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
-import edu.uci.ics.hyracks.api.job.JobId;
-import edu.uci.ics.hyracks.api.job.JobSpecification;
-
-@SuppressWarnings({ "rawtypes", "unchecked" })
-public class HyracksExecutionEngine implements IExecutionEngine {
-
-    private static final Log LOG = LogFactory.getLog(HyracksExecutionEngine.class.getName());
-    private static final String clusterPropertiesPath = "conf/cluster.properties";
-    private static final String masterFilePath = "conf/master";
-
-    private static List<Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>> DEFAULT_LOGICAL_REWRITES = new ArrayList<Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>>();
-    private static List<Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>> DEFAULT_PHYSICAL_REWRITES = new ArrayList<Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>>();
-    static {
-        SequentialFixpointRuleController seqCtrlNoDfs = new SequentialFixpointRuleController(false);
-        SequentialFixpointRuleController seqCtrlFullDfs = new SequentialFixpointRuleController(true);
-        SequentialOnceRuleController seqOnceCtrl = new SequentialOnceRuleController(true);
-        DEFAULT_LOGICAL_REWRITES.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(seqCtrlFullDfs,
-                HiveRuleCollections.NORMALIZATION));
-        DEFAULT_LOGICAL_REWRITES.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(seqCtrlNoDfs,
-                HiveRuleCollections.COND_PUSHDOWN_AND_JOIN_INFERENCE));
-        DEFAULT_LOGICAL_REWRITES.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(seqCtrlFullDfs,
-                HiveRuleCollections.LOAD_FIELDS));
-        DEFAULT_LOGICAL_REWRITES.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(seqCtrlNoDfs,
-                HiveRuleCollections.OP_PUSHDOWN));
-        DEFAULT_LOGICAL_REWRITES.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(seqOnceCtrl,
-                HiveRuleCollections.DATA_EXCHANGE));
-        DEFAULT_LOGICAL_REWRITES.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(seqCtrlNoDfs,
-                HiveRuleCollections.CONSOLIDATION));
-
-        DEFAULT_PHYSICAL_REWRITES.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(seqOnceCtrl,
-                HiveRuleCollections.PHYSICAL_PLAN_REWRITES));
-        DEFAULT_PHYSICAL_REWRITES.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(seqOnceCtrl,
-                HiveRuleCollections.prepareJobGenRules));
-    }
-
-    /**
-     * static configurations for compiler
-     */
-    private HeuristicCompilerFactoryBuilder builder;
-
-    /**
-     * compiler
-     */
-    private ICompiler compiler;
-
-    /**
-     * physical optimization config
-     */
-    private PhysicalOptimizationConfig physicalOptimizationConfig;
-
-    /**
-     * final ending operators
-     */
-    private List<Operator> leaveOps = new ArrayList<Operator>();
-
-    /**
-     * tasks that are already visited
-     */
-    private Map<Task<? extends Serializable>, Boolean> tasksVisited = new HashMap<Task<? extends Serializable>, Boolean>();
-
-    /**
-     * hyracks job spec
-     */
-    private JobSpecification jobSpec;
-
-    /**
-     * hive configuration
-     */
-    private HiveConf conf;
-
-    /**
-     * plan printer
-     */
-    private PrintWriter planPrinter;
-
-    /**
-     * properties
-     */
-    private Properties clusterProps;
-
-    /**
-     * the Hyracks client connection
-     */
-    private IHyracksClientConnection hcc;
-
-    public HyracksExecutionEngine(HiveConf conf) {
-        this.conf = conf;
-        init(conf);
-    }
-
-    public HyracksExecutionEngine(HiveConf conf, PrintWriter planPrinter) {
-        this.conf = conf;
-        this.planPrinter = planPrinter;
-        init(conf);
-    }
-
-    private void init(HiveConf conf) {
-        builder = new HeuristicCompilerFactoryBuilder(DefaultOptimizationContextFactory.INSTANCE);
-        builder.setLogicalRewrites(DEFAULT_LOGICAL_REWRITES);
-        builder.setPhysicalRewrites(DEFAULT_PHYSICAL_REWRITES);
-        builder.setIMergeAggregationExpressionFactory(HiveMergeAggregationExpressionFactory.INSTANCE);
-        builder.setExpressionTypeComputer(HiveExpressionTypeComputer.INSTANCE);
-        builder.setNullableTypeComputer(HiveNullableTypeComputer.INSTANCE);
-
-        long memSizeExternalGby = conf.getLong("hive.algebricks.groupby.external.memory", 268435456);
-        long memSizeExternalSort = conf.getLong("hive.algebricks.sort.memory", 536870912);
-        int frameSize = conf.getInt("hive.algebricks.framesize", 32768);
-
-        physicalOptimizationConfig = new PhysicalOptimizationConfig();
-        int frameLimitExtGby = (int) (memSizeExternalGby / frameSize);
-        physicalOptimizationConfig.setMaxFramesExternalGroupBy(frameLimitExtGby);
-        int frameLimitExtSort = (int) (memSizeExternalSort / frameSize);
-        physicalOptimizationConfig.setMaxFramesExternalSort(frameLimitExtSort);
-        builder.setPhysicalOptimizationConfig(physicalOptimizationConfig);
-    }
-
-    @Override
-    public int compileJob(List<Task<? extends Serializable>> rootTasks) {
-        // clean up
-        leaveOps.clear();
-        tasksVisited.clear();
-        jobSpec = null;
-
-        HashMap<String, PartitionDesc> aliasToPath = new HashMap<String, PartitionDesc>();
-        List<Operator> rootOps = generateRootOperatorDAG(rootTasks, aliasToPath);
-
-        // get all leave Ops
-        getLeaves(rootOps, leaveOps);
-
-        HiveAlgebricksTranslator translator = new HiveAlgebricksTranslator();
-        try {
-            translator.translate(rootOps, null, aliasToPath);
-
-            ILogicalPlan plan = translator.genLogicalPlan();
-
-            if (plan.getRoots() != null && plan.getRoots().size() > 0 && plan.getRoots().get(0).getValue() != null) {
-                translator.printOperators();
-                ILogicalPlanAndMetadata planAndMetadata = new HiveLogicalPlanAndMetaData(plan,
-                        translator.getMetadataProvider());
-
-                ICompilerFactory compilerFactory = builder.create();
-                compiler = compilerFactory.createCompiler(planAndMetadata.getPlan(),
-                        planAndMetadata.getMetadataProvider(), translator.getVariableCounter());
-
-                // run optimization and re-writing rules for Hive plan
-                compiler.optimize();
-
-                // print optimized plan
-                LogicalOperatorPrettyPrintVisitor pvisitor = new LogicalOperatorPrettyPrintVisitor();
-                StringBuilder buffer = new StringBuilder();
-                PlanPrettyPrinter.printPlan(plan, buffer, pvisitor, 0);
-                String planStr = buffer.toString();
-                System.out.println(planStr);
-
-                if (planPrinter != null)
-                    planPrinter.print(planStr);
-            }
-        } catch (Exception e) {
-            e.printStackTrace();
-            return 1;
-        }
-
-        return 0;
-    }
-
-    private void codeGen() throws AlgebricksException {
-        try {
-            // number of cpu cores in the cluster
-            builder.setClusterLocations(new AlgebricksAbsolutePartitionConstraint(ConfUtil.getNCs()));
-        } catch (Exception e) {
-            throw new AlgebricksException(e);
-        }
-        // builder.setClusterTopology(ConfUtil.getClusterTopology());
-        builder.setBinaryBooleanInspectorFactory(HiveBinaryBooleanInspectorFactory.INSTANCE);
-        builder.setBinaryIntegerInspectorFactory(HiveBinaryIntegerInspectorFactory.INSTANCE);
-        builder.setComparatorFactoryProvider(HiveBinaryComparatorFactoryProvider.INSTANCE);
-        builder.setExpressionRuntimeProvider(HiveExpressionRuntimeProvider.INSTANCE);
-        builder.setHashFunctionFactoryProvider(HiveBinaryHashFunctionFactoryProvider.INSTANCE);
-        builder.setPrinterProvider(HivePrinterFactoryProvider.INSTANCE);
-        builder.setSerializerDeserializerProvider(HiveSerializerDeserializerProvider.INSTANCE);
-        builder.setNullWriterFactory(HiveNullWriterFactory.INSTANCE);
-        builder.setNormalizedKeyComputerFactoryProvider(HiveNormalizedKeyComputerFactoryProvider.INSTANCE);
-        builder.setPartialAggregationTypeComputer(HivePartialAggregationTypeComputer.INSTANCE);
-        builder.setTypeTraitProvider(HiveTypeTraitProvider.INSTANCE);
-        builder.setHashFunctionFamilyProvider(HiveBinaryHashFunctionFamilyProvider.INSTANCE);
-
-        jobSpec = compiler.createJob(null, null);
-
-        // set the policy
-        String policyStr = conf.get("hive.hyracks.connectorpolicy");
-        if (policyStr == null)
-            policyStr = "PIPELINING";
-        Policy policyValue = Policy.valueOf(policyStr);
-        jobSpec.setConnectorPolicyAssignmentPolicy(new HiveConnectorPolicyAssignmentPolicy(policyValue));
-        jobSpec.setUseConnectorPolicyForScheduling(false);
-    }
-
-    @Override
-    public int executeJob() {
-        try {
-            codeGen();
-            executeHyracksJob(jobSpec);
-        } catch (Exception e) {
-            e.printStackTrace();
-            return 1;
-        }
-        return 0;
-    }
-
-    private List<Operator> generateRootOperatorDAG(List<Task<? extends Serializable>> rootTasks,
-            HashMap<String, PartitionDesc> aliasToPath) {
-
-        List<Operator> rootOps = new ArrayList<Operator>();
-        List<Task<? extends Serializable>> toDelete = new ArrayList<Task<? extends Serializable>>();
-        tasksVisited.clear();
-
-        for (int i = rootTasks.size() - 1; i >= 0; i--) {
-            /**
-             * list of map-reduce tasks
-             */
-            Task<? extends Serializable> task = rootTasks.get(i);
-
-            if (task instanceof MapRedTask) {
-                List<Operator> mapRootOps = articulateMapReduceOperators(task, rootOps, aliasToPath, rootTasks);
-                if (i == 0)
-                    rootOps.addAll(mapRootOps);
-                else {
-                    List<Operator> leaves = new ArrayList<Operator>();
-                    getLeaves(rootOps, leaves);
-
-                    List<Operator> mapChildren = new ArrayList<Operator>();
-                    for (Operator childMap : mapRootOps) {
-                        if (childMap instanceof TableScanOperator) {
-                            TableScanDesc topDesc = (TableScanDesc) childMap.getConf();
-                            if (topDesc == null)
-                                mapChildren.add(childMap);
-                            else {
-                                rootOps.add(childMap);
-                            }
-                        } else
-                            mapChildren.add(childMap);
-                    }
-
-                    if (mapChildren.size() > 0) {
-                        for (Operator leaf : leaves)
-                            leaf.setChildOperators(mapChildren);
-                        for (Operator child : mapChildren)
-                            child.setParentOperators(leaves);
-                    }
-                }
-
-                MapredWork mr = (MapredWork) task.getWork();
-                HashMap<String, PartitionDesc> map = mr.getAliasToPartnInfo();
-
-                addAliasToPartition(aliasToPath, map);
-                toDelete.add(task);
-            }
-        }
-
-        for (Task<? extends Serializable> task : toDelete)
-            rootTasks.remove(task);
-
-        return rootOps;
-    }
-
-    private void addAliasToPartition(HashMap<String, PartitionDesc> aliasToPath, HashMap<String, PartitionDesc> map) {
-        Iterator<String> keys = map.keySet().iterator();
-        while (keys.hasNext()) {
-            String key = keys.next();
-            PartitionDesc part = map.get(key);
-            String[] names = key.split(":");
-            for (String name : names) {
-                aliasToPath.put(name, part);
-            }
-        }
-    }
-
-    private List<Operator> articulateMapReduceOperators(Task task, List<Operator> rootOps,
-            HashMap<String, PartitionDesc> aliasToPath, List<Task<? extends Serializable>> rootTasks) {
-        // System.out.println("!"+task.getName());
-        if (!(task instanceof MapRedTask)) {
-            if (!(task instanceof ConditionalTask)) {
-                rootTasks.add(task);
-                return null;
-            } else {
-                // remove map-reduce branches in condition task
-                ConditionalTask condition = (ConditionalTask) task;
-                List<Task<? extends Serializable>> branches = condition.getListTasks();
-                for (int i = branches.size() - 1; i >= 0; i--) {
-                    Task branch = branches.get(i);
-                    if (branch instanceof MapRedTask) {
-                        return articulateMapReduceOperators(branch, rootOps, aliasToPath, rootTasks);
-                    }
-                }
-                rootTasks.add(task);
-                return null;
-            }
-        }
-
-        MapredWork mr = (MapredWork) task.getWork();
-        HashMap<String, PartitionDesc> map = mr.getAliasToPartnInfo();
-
-        // put all aliasToParitionDesc mapping into the map
-        addAliasToPartition(aliasToPath, map);
-
-        MapRedTask mrtask = (MapRedTask) task;
-        MapredWork work = (MapredWork) mrtask.getWork();
-        HashMap<String, Operator<? extends Serializable>> operators = work.getAliasToWork();
-
-        Set entries = operators.entrySet();
-        Iterator<Entry<String, Operator>> iterator = entries.iterator();
-        List<Operator> mapRootOps = new ArrayList<Operator>();
-
-        // get map root operators
-        while (iterator.hasNext()) {
-            Operator next = iterator.next().getValue();
-            if (!mapRootOps.contains(next)) {
-                // clear that only for the case of union
-                mapRootOps.add(next);
-            }
-        }
-
-        // get map local work
-        MapredLocalWork localWork = work.getMapLocalWork();
-        if (localWork != null) {
-            HashMap<String, Operator<? extends Serializable>> localOperators = localWork.getAliasToWork();
-
-            Set localEntries = localOperators.entrySet();
-            Iterator<Entry<String, Operator>> localIterator = localEntries.iterator();
-            while (localIterator.hasNext()) {
-                mapRootOps.add(localIterator.next().getValue());
-            }
-
-            HashMap<String, FetchWork> localFetch = localWork.getAliasToFetchWork();
-            Set localFetchEntries = localFetch.entrySet();
-            Iterator<Entry<String, FetchWork>> localFetchIterator = localFetchEntries.iterator();
-            while (localFetchIterator.hasNext()) {
-                Entry<String, FetchWork> fetchMap = localFetchIterator.next();
-                FetchWork fetch = fetchMap.getValue();
-                String alias = fetchMap.getKey();
-                List<PartitionDesc> dirPart = fetch.getPartDesc();
-
-                // temporary hack: put the first partitionDesc into the map
-                aliasToPath.put(alias, dirPart.get(0));
-            }
-        }
-
-        Boolean visited = tasksVisited.get(task);
-        if (visited != null && visited.booleanValue() == true) {
-            return mapRootOps;
-        }
-
-        // do that only for union operator
-        for (Operator op : mapRootOps)
-            if (op.getParentOperators() != null)
-                op.getParentOperators().clear();
-
-        List<Operator> mapLeaves = new ArrayList<Operator>();
-        downToLeaves(mapRootOps, mapLeaves);
-        List<Operator> reduceOps = new ArrayList<Operator>();
-
-        if (work.getReducer() != null)
-            reduceOps.add(work.getReducer());
-
-        for (Operator mapLeaf : mapLeaves) {
-            mapLeaf.setChildOperators(reduceOps);
-        }
-
-        for (Operator reduceOp : reduceOps) {
-            if (reduceOp != null)
-                reduceOp.setParentOperators(mapLeaves);
-        }
-
-        List<Operator> leafs = new ArrayList<Operator>();
-        if (reduceOps.size() > 0) {
-            downToLeaves(reduceOps, leafs);
-        } else {
-            leafs = mapLeaves;
-        }
-
-        List<Operator> mapChildren = new ArrayList<Operator>();
-        if (task.getChildTasks() != null && task.getChildTasks().size() > 0) {
-            for (Object child : task.getChildTasks()) {
-                List<Operator> childMapOps = articulateMapReduceOperators((Task) child, rootOps, aliasToPath, rootTasks);
-                if (childMapOps == null)
-                    continue;
-
-                for (Operator childMap : childMapOps) {
-                    if (childMap instanceof TableScanOperator) {
-                        TableScanDesc topDesc = (TableScanDesc) childMap.getConf();
-                        if (topDesc == null)
-                            mapChildren.add(childMap);
-                        else {
-                            rootOps.add(childMap);
-                        }
-                    } else {
-                        // if not table scan, add the child
-                        mapChildren.add(childMap);
-                    }
-                }
-            }
-
-            if (mapChildren.size() > 0) {
-                int i = 0;
-                for (Operator leaf : leafs) {
-                    if (leaf.getChildOperators() == null || leaf.getChildOperators().size() == 0)
-                        leaf.setChildOperators(new ArrayList<Operator>());
-                    leaf.getChildOperators().add(mapChildren.get(i));
-                    i++;
-                }
-                i = 0;
-                for (Operator child : mapChildren) {
-                    if (child.getParentOperators() == null || child.getParentOperators().size() == 0)
-                        child.setParentOperators(new ArrayList<Operator>());
-                    child.getParentOperators().add(leafs.get(i));
-                    i++;
-                }
-            }
-        }
-
-        // mark this task as visited
-        this.tasksVisited.put(task, true);
-        return mapRootOps;
-    }
-
-    /**
-     * down to leaf nodes
-     * 
-     * @param ops
-     * @param leaves
-     */
-    private void downToLeaves(List<Operator> ops, List<Operator> leaves) {
-
-        // Operator currentOp;
-        for (Operator op : ops) {
-            if (op != null && op.getChildOperators() != null && op.getChildOperators().size() > 0) {
-                downToLeaves(op.getChildOperators(), leaves);
-            } else {
-                if (op != null && leaves.indexOf(op) < 0)
-                    leaves.add(op);
-            }
-        }
-    }
-
-    private void getLeaves(List<Operator> roots, List<Operator> currentLeaves) {
-        for (Operator op : roots) {
-            List<Operator> children = op.getChildOperators();
-            if (children == null || children.size() <= 0) {
-                currentLeaves.add(op);
-            } else {
-                getLeaves(children, currentLeaves);
-            }
-        }
-    }
-
-    private void executeHyracksJob(JobSpecification job) throws Exception {
-
-        /**
-         * load the properties file if it is not loaded
-         */
-        if (clusterProps == null) {
-            clusterProps = new Properties();
-            InputStream confIn = new FileInputStream(clusterPropertiesPath);
-            clusterProps.load(confIn);
-            confIn.close();
-        }
-
-        if (hcc == null) {
-            BufferedReader ipReader = new BufferedReader(new InputStreamReader(new FileInputStream(masterFilePath)));
-            String masterNode = ipReader.readLine();
-            ipReader.close();
-
-            InetAddress[] ips = InetAddress.getAllByName(masterNode);
-            int port = Integer.parseInt(clusterProps.getProperty("CC_CLIENTPORT"));
-            for (InetAddress ip : ips) {
-                if (ip.getAddress().length <= 4) {
-                    try {
-                        hcc = new HyracksConnection(ip.getHostAddress(), port);
-                        break;
-                    } catch (Exception e) {
-                        continue;
-                    }
-                }
-            }
-        }
-
-        long start = System.currentTimeMillis();
-        JobId jobId = hcc.startJob(job);
-        hcc.waitForCompletion(jobId);
-
-        // System.out.println("job finished: " + jobId.toString());
-        // call all leave nodes to end
-        for (Operator leaf : leaveOps) {
-            jobClose(leaf);
-        }
-
-        long end = System.currentTimeMillis();
-        System.err.println(start + " " + end + " " + (end - start));
-    }
-
-    /**
-     * mv to final directory on hdfs (not real final)
-     * 
-     * @param leaf
-     * @throws Exception
-     */
-    private void jobClose(Operator leaf) throws Exception {
-        FileSinkOperator fsOp = (FileSinkOperator) leaf;
-        FileSinkDesc desc = fsOp.getConf();
-        boolean isNativeTable = !desc.getTableInfo().isNonNative();
-        if ((conf != null) && isNativeTable) {
-            String specPath = desc.getDirName();
-            DynamicPartitionCtx dpCtx = desc.getDynPartCtx();
-            // for 0.7.0
-            fsOp.mvFileToFinalPath(specPath, conf, true, LOG, dpCtx);
-            // for 0.8.0
-            // Utilities.mvFileToFinalPath(specPath, conf, true, LOG, dpCtx,
-            // desc);
-        }
-    }
-}
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.hivesterix.runtime.exec;
+
+import java.io.BufferedReader;
+import java.io.FileInputStream;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.PrintWriter;
+import java.io.Serializable;
+import java.net.InetAddress;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Properties;
+import java.util.Set;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.hadoop.hive.conf.HiveConf;
+import org.apache.hadoop.hive.ql.exec.ConditionalTask;
+import org.apache.hadoop.hive.ql.exec.FileSinkOperator;
+import org.apache.hadoop.hive.ql.exec.MapRedTask;
+import org.apache.hadoop.hive.ql.exec.Operator;
+import org.apache.hadoop.hive.ql.exec.TableScanOperator;
+import org.apache.hadoop.hive.ql.exec.Task;
+import org.apache.hadoop.hive.ql.plan.DynamicPartitionCtx;
+import org.apache.hadoop.hive.ql.plan.FetchWork;
+import org.apache.hadoop.hive.ql.plan.FileSinkDesc;
+import org.apache.hadoop.hive.ql.plan.MapredLocalWork;
+import org.apache.hadoop.hive.ql.plan.MapredWork;
+import org.apache.hadoop.hive.ql.plan.PartitionDesc;
+import org.apache.hadoop.hive.ql.plan.TableScanDesc;
+
+import edu.uci.ics.hivesterix.common.config.ConfUtil;
+import edu.uci.ics.hivesterix.logical.expression.HiveExpressionTypeComputer;
+import edu.uci.ics.hivesterix.logical.expression.HiveMergeAggregationExpressionFactory;
+import edu.uci.ics.hivesterix.logical.expression.HiveNullableTypeComputer;
+import edu.uci.ics.hivesterix.logical.expression.HivePartialAggregationTypeComputer;
+import edu.uci.ics.hivesterix.logical.plan.HiveAlgebricksTranslator;
+import edu.uci.ics.hivesterix.logical.plan.HiveLogicalPlanAndMetaData;
+import edu.uci.ics.hivesterix.optimizer.rulecollections.HiveRuleCollections;
+import edu.uci.ics.hivesterix.runtime.factory.evaluator.HiveExpressionRuntimeProvider;
+import edu.uci.ics.hivesterix.runtime.factory.nullwriter.HiveNullWriterFactory;
+import edu.uci.ics.hivesterix.runtime.inspector.HiveBinaryBooleanInspectorFactory;
+import edu.uci.ics.hivesterix.runtime.inspector.HiveBinaryIntegerInspectorFactory;
+import edu.uci.ics.hivesterix.runtime.jobgen.HiveConnectorPolicyAssignmentPolicy;
+import edu.uci.ics.hivesterix.runtime.jobgen.HiveConnectorPolicyAssignmentPolicy.Policy;
+import edu.uci.ics.hivesterix.runtime.provider.HiveBinaryComparatorFactoryProvider;
+import edu.uci.ics.hivesterix.runtime.provider.HiveBinaryHashFunctionFactoryProvider;
+import edu.uci.ics.hivesterix.runtime.provider.HiveBinaryHashFunctionFamilyProvider;
+import edu.uci.ics.hivesterix.runtime.provider.HiveNormalizedKeyComputerFactoryProvider;
+import edu.uci.ics.hivesterix.runtime.provider.HivePrinterFactoryProvider;
+import edu.uci.ics.hivesterix.runtime.provider.HiveSerializerDeserializerProvider;
+import edu.uci.ics.hivesterix.runtime.provider.HiveTypeTraitProvider;
+import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksAbsolutePartitionConstraint;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.compiler.api.HeuristicCompilerFactoryBuilder;
+import edu.uci.ics.hyracks.algebricks.compiler.api.HeuristicCompilerFactoryBuilder.DefaultOptimizationContextFactory;
+import edu.uci.ics.hyracks.algebricks.compiler.api.ICompiler;
+import edu.uci.ics.hyracks.algebricks.compiler.api.ICompilerFactory;
+import edu.uci.ics.hyracks.algebricks.compiler.rewriter.rulecontrollers.SequentialFixpointRuleController;
+import edu.uci.ics.hyracks.algebricks.compiler.rewriter.rulecontrollers.SequentialOnceRuleController;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalPlan;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalPlanAndMetadata;
+import edu.uci.ics.hyracks.algebricks.core.algebra.prettyprint.LogicalOperatorPrettyPrintVisitor;
+import edu.uci.ics.hyracks.algebricks.core.algebra.prettyprint.PlanPrettyPrinter;
+import edu.uci.ics.hyracks.algebricks.core.rewriter.base.AbstractRuleController;
+import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
+import edu.uci.ics.hyracks.algebricks.core.rewriter.base.PhysicalOptimizationConfig;
+import edu.uci.ics.hyracks.api.client.HyracksConnection;
+import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
+import edu.uci.ics.hyracks.api.job.JobId;
+import edu.uci.ics.hyracks.api.job.JobSpecification;
+
+@SuppressWarnings({ "rawtypes", "unchecked" })
+public class HyracksExecutionEngine implements IExecutionEngine {
+
+    private static final Log LOG = LogFactory.getLog(HyracksExecutionEngine.class.getName());
+    private static final String clusterPropertiesPath = "conf/cluster.properties";
+    private static final String masterFilePath = "conf/master";
+
+    private static List<Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>> DEFAULT_LOGICAL_REWRITES = new ArrayList<Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>>();
+    private static List<Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>> DEFAULT_PHYSICAL_REWRITES = new ArrayList<Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>>();
+    static {
+        SequentialFixpointRuleController seqCtrlNoDfs = new SequentialFixpointRuleController(false);
+        SequentialFixpointRuleController seqCtrlFullDfs = new SequentialFixpointRuleController(true);
+        SequentialOnceRuleController seqOnceCtrl = new SequentialOnceRuleController(true);
+        DEFAULT_LOGICAL_REWRITES.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(seqCtrlFullDfs,
+                HiveRuleCollections.NORMALIZATION));
+        DEFAULT_LOGICAL_REWRITES.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(seqCtrlNoDfs,
+                HiveRuleCollections.COND_PUSHDOWN_AND_JOIN_INFERENCE));
+        DEFAULT_LOGICAL_REWRITES.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(seqCtrlFullDfs,
+                HiveRuleCollections.LOAD_FIELDS));
+        DEFAULT_LOGICAL_REWRITES.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(seqCtrlNoDfs,
+                HiveRuleCollections.OP_PUSHDOWN));
+        DEFAULT_LOGICAL_REWRITES.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(seqOnceCtrl,
+                HiveRuleCollections.DATA_EXCHANGE));
+        DEFAULT_LOGICAL_REWRITES.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(seqCtrlNoDfs,
+                HiveRuleCollections.CONSOLIDATION));
+
+        DEFAULT_PHYSICAL_REWRITES.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(seqOnceCtrl,
+                HiveRuleCollections.PHYSICAL_PLAN_REWRITES));
+        DEFAULT_PHYSICAL_REWRITES.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(seqOnceCtrl,
+                HiveRuleCollections.prepareJobGenRules));
+    }
+
+    /**
+     * static configurations for compiler
+     */
+    private HeuristicCompilerFactoryBuilder builder;
+
+    /**
+     * compiler
+     */
+    private ICompiler compiler;
+
+    /**
+     * physical optimization config
+     */
+    private PhysicalOptimizationConfig physicalOptimizationConfig;
+
+    /**
+     * final ending operators
+     */
+    private List<Operator> leaveOps = new ArrayList<Operator>();
+
+    /**
+     * tasks that are already visited
+     */
+    private Map<Task<? extends Serializable>, Boolean> tasksVisited = new HashMap<Task<? extends Serializable>, Boolean>();
+
+    /**
+     * hyracks job spec
+     */
+    private JobSpecification jobSpec;
+
+    /**
+     * hive configuration
+     */
+    private HiveConf conf;
+
+    /**
+     * plan printer
+     */
+    private PrintWriter planPrinter;
+
+    /**
+     * properties
+     */
+    private Properties clusterProps;
+
+    /**
+     * the Hyracks client connection
+     */
+    private IHyracksClientConnection hcc;
+
+    public HyracksExecutionEngine(HiveConf conf) {
+        this.conf = conf;
+        init(conf);
+    }
+
+    public HyracksExecutionEngine(HiveConf conf, PrintWriter planPrinter) {
+        this.conf = conf;
+        this.planPrinter = planPrinter;
+        init(conf);
+    }
+
+    private void init(HiveConf conf) {
+        builder = new HeuristicCompilerFactoryBuilder(DefaultOptimizationContextFactory.INSTANCE);
+        builder.setLogicalRewrites(DEFAULT_LOGICAL_REWRITES);
+        builder.setPhysicalRewrites(DEFAULT_PHYSICAL_REWRITES);
+        builder.setIMergeAggregationExpressionFactory(HiveMergeAggregationExpressionFactory.INSTANCE);
+        builder.setExpressionTypeComputer(HiveExpressionTypeComputer.INSTANCE);
+        builder.setNullableTypeComputer(HiveNullableTypeComputer.INSTANCE);
+
+        long memSizeExternalGby = conf.getLong("hive.algebricks.groupby.external.memory", 268435456);
+        long memSizeExternalSort = conf.getLong("hive.algebricks.sort.memory", 536870912);
+        int frameSize = conf.getInt("hive.algebricks.framesize", 32768);
+
+        physicalOptimizationConfig = new PhysicalOptimizationConfig();
+        int frameLimitExtGby = (int) (memSizeExternalGby / frameSize);
+        physicalOptimizationConfig.setMaxFramesExternalGroupBy(frameLimitExtGby);
+        int frameLimitExtSort = (int) (memSizeExternalSort / frameSize);
+        physicalOptimizationConfig.setMaxFramesExternalSort(frameLimitExtSort);
+        builder.setPhysicalOptimizationConfig(physicalOptimizationConfig);
+    }
+
+    @Override
+    public int compileJob(List<Task<? extends Serializable>> rootTasks) {
+        // clean up
+        leaveOps.clear();
+        tasksVisited.clear();
+        jobSpec = null;
+
+        HashMap<String, PartitionDesc> aliasToPath = new HashMap<String, PartitionDesc>();
+        List<Operator> rootOps = generateRootOperatorDAG(rootTasks, aliasToPath);
+
+        // get all leave Ops
+        getLeaves(rootOps, leaveOps);
+
+        HiveAlgebricksTranslator translator = new HiveAlgebricksTranslator();
+        try {
+            translator.translate(rootOps, null, aliasToPath);
+
+            ILogicalPlan plan = translator.genLogicalPlan();
+
+            if (plan.getRoots() != null && plan.getRoots().size() > 0 && plan.getRoots().get(0).getValue() != null) {
+                translator.printOperators();
+                ILogicalPlanAndMetadata planAndMetadata = new HiveLogicalPlanAndMetaData(plan,
+                        translator.getMetadataProvider());
+
+                ICompilerFactory compilerFactory = builder.create();
+                compiler = compilerFactory.createCompiler(planAndMetadata.getPlan(),
+                        planAndMetadata.getMetadataProvider(), translator.getVariableCounter());
+
+                // run optimization and re-writing rules for Hive plan
+                compiler.optimize();
+
+                // print optimized plan
+                LogicalOperatorPrettyPrintVisitor pvisitor = new LogicalOperatorPrettyPrintVisitor();
+                StringBuilder buffer = new StringBuilder();
+                PlanPrettyPrinter.printPlan(plan, buffer, pvisitor, 0);
+                String planStr = buffer.toString();
+                System.out.println(planStr);
+
+                if (planPrinter != null)
+                    planPrinter.print(planStr);
+            } else {
+                /** it is not a map reduce task DAG */
+                return 2;
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+            return 1;
+        }
+
+        return 0;
+    }
+
+    private void codeGen() throws AlgebricksException {
+        try {
+            // number of cpu cores in the cluster
+            builder.setClusterLocations(new AlgebricksAbsolutePartitionConstraint(ConfUtil.getNCs()));
+        } catch (Exception e) {
+            throw new AlgebricksException(e);
+        }
+        // builder.setClusterTopology(ConfUtil.getClusterTopology());
+        builder.setBinaryBooleanInspectorFactory(HiveBinaryBooleanInspectorFactory.INSTANCE);
+        builder.setBinaryIntegerInspectorFactory(HiveBinaryIntegerInspectorFactory.INSTANCE);
+        builder.setComparatorFactoryProvider(HiveBinaryComparatorFactoryProvider.INSTANCE);
+        builder.setExpressionRuntimeProvider(HiveExpressionRuntimeProvider.INSTANCE);
+        builder.setHashFunctionFactoryProvider(HiveBinaryHashFunctionFactoryProvider.INSTANCE);
+        builder.setPrinterProvider(HivePrinterFactoryProvider.INSTANCE);
+        builder.setSerializerDeserializerProvider(HiveSerializerDeserializerProvider.INSTANCE);
+        builder.setNullWriterFactory(HiveNullWriterFactory.INSTANCE);
+        builder.setNormalizedKeyComputerFactoryProvider(HiveNormalizedKeyComputerFactoryProvider.INSTANCE);
+        builder.setPartialAggregationTypeComputer(HivePartialAggregationTypeComputer.INSTANCE);
+        builder.setTypeTraitProvider(HiveTypeTraitProvider.INSTANCE);
+        builder.setHashFunctionFamilyProvider(HiveBinaryHashFunctionFamilyProvider.INSTANCE);
+
+        jobSpec = compiler.createJob(null, null);
+
+        // set the policy
+        String policyStr = conf.get("hive.hyracks.connectorpolicy");
+        if (policyStr == null)
+            policyStr = "PIPELINING";
+        Policy policyValue = Policy.valueOf(policyStr);
+        jobSpec.setConnectorPolicyAssignmentPolicy(new HiveConnectorPolicyAssignmentPolicy(policyValue));
+        jobSpec.setUseConnectorPolicyForScheduling(false);
+    }
+
+    @Override
+    public int executeJob() {
+        try {
+            codeGen();
+            executeHyracksJob(jobSpec);
+        } catch (Exception e) {
+            e.printStackTrace();
+            return 1;
+        }
+        return 0;
+    }
+
+    private List<Operator> generateRootOperatorDAG(List<Task<? extends Serializable>> rootTasks,
+            HashMap<String, PartitionDesc> aliasToPath) {
+
+        List<Operator> rootOps = new ArrayList<Operator>();
+        List<Task<? extends Serializable>> toDelete = new ArrayList<Task<? extends Serializable>>();
+        tasksVisited.clear();
+
+        for (int i = rootTasks.size() - 1; i >= 0; i--) {
+            /**
+             * list of map-reduce tasks
+             */
+            Task<? extends Serializable> task = rootTasks.get(i);
+
+            if (task instanceof MapRedTask) {
+                List<Operator> mapRootOps = articulateMapReduceOperators(task, rootOps, aliasToPath, rootTasks);
+                if (i == 0)
+                    rootOps.addAll(mapRootOps);
+                else {
+                    List<Operator> leaves = new ArrayList<Operator>();
+                    getLeaves(rootOps, leaves);
+
+                    List<Operator> mapChildren = new ArrayList<Operator>();
+                    for (Operator childMap : mapRootOps) {
+                        if (childMap instanceof TableScanOperator) {
+                            TableScanDesc topDesc = (TableScanDesc) childMap.getConf();
+                            if (topDesc == null)
+                                mapChildren.add(childMap);
+                            else {
+                                rootOps.add(childMap);
+                            }
+                        } else
+                            mapChildren.add(childMap);
+                    }
+
+                    if (mapChildren.size() > 0) {
+                        for (Operator leaf : leaves)
+                            leaf.setChildOperators(mapChildren);
+                        for (Operator child : mapChildren)
+                            child.setParentOperators(leaves);
+                    }
+                }
+
+                MapredWork mr = (MapredWork) task.getWork();
+                HashMap<String, PartitionDesc> map = mr.getAliasToPartnInfo();
+
+                addAliasToPartition(aliasToPath, map);
+                toDelete.add(task);
+            }
+        }
+
+        for (Task<? extends Serializable> task : toDelete)
+            rootTasks.remove(task);
+
+        return rootOps;
+    }
+
+    private void addAliasToPartition(HashMap<String, PartitionDesc> aliasToPath, HashMap<String, PartitionDesc> map) {
+        Iterator<String> keys = map.keySet().iterator();
+        while (keys.hasNext()) {
+            String key = keys.next();
+            PartitionDesc part = map.get(key);
+            String[] names = key.split(":");
+            for (String name : names) {
+                aliasToPath.put(name, part);
+            }
+        }
+    }
+
+    private List<Operator> articulateMapReduceOperators(Task task, List<Operator> rootOps,
+            HashMap<String, PartitionDesc> aliasToPath, List<Task<? extends Serializable>> rootTasks) {
+        // System.out.println("!"+task.getName());
+        if (!(task instanceof MapRedTask)) {
+            if (!(task instanceof ConditionalTask)) {
+                rootTasks.add(task);
+                return null;
+            } else {
+                // remove map-reduce branches in condition task
+                ConditionalTask condition = (ConditionalTask) task;
+                List<Task<? extends Serializable>> branches = condition.getListTasks();
+                for (int i = branches.size() - 1; i >= 0; i--) {
+                    Task branch = branches.get(i);
+                    if (branch instanceof MapRedTask) {
+                        return articulateMapReduceOperators(branch, rootOps, aliasToPath, rootTasks);
+                    }
+                }
+                rootTasks.add(task);
+                return null;
+            }
+        }
+
+        MapredWork mr = (MapredWork) task.getWork();
+        HashMap<String, PartitionDesc> map = mr.getAliasToPartnInfo();
+
+        // put all aliasToParitionDesc mapping into the map
+        addAliasToPartition(aliasToPath, map);
+
+        MapRedTask mrtask = (MapRedTask) task;
+        MapredWork work = (MapredWork) mrtask.getWork();
+        HashMap<String, Operator<? extends Serializable>> operators = work.getAliasToWork();
+
+        Set entries = operators.entrySet();
+        Iterator<Entry<String, Operator>> iterator = entries.iterator();
+        List<Operator> mapRootOps = new ArrayList<Operator>();
+
+        // get map root operators
+        while (iterator.hasNext()) {
+            Operator next = iterator.next().getValue();
+            if (!mapRootOps.contains(next)) {
+                // clear that only for the case of union
+                mapRootOps.add(next);
+            }
+        }
+
+        // get map local work
+        MapredLocalWork localWork = work.getMapLocalWork();
+        if (localWork != null) {
+            HashMap<String, Operator<? extends Serializable>> localOperators = localWork.getAliasToWork();
+
+            Set localEntries = localOperators.entrySet();
+            Iterator<Entry<String, Operator>> localIterator = localEntries.iterator();
+            while (localIterator.hasNext()) {
+                mapRootOps.add(localIterator.next().getValue());
+            }
+
+            HashMap<String, FetchWork> localFetch = localWork.getAliasToFetchWork();
+            Set localFetchEntries = localFetch.entrySet();
+            Iterator<Entry<String, FetchWork>> localFetchIterator = localFetchEntries.iterator();
+            while (localFetchIterator.hasNext()) {
+                Entry<String, FetchWork> fetchMap = localFetchIterator.next();
+                FetchWork fetch = fetchMap.getValue();
+                String alias = fetchMap.getKey();
+                List<PartitionDesc> dirPart = fetch.getPartDesc();
+
+                // temporary hack: put the first partitionDesc into the map
+                aliasToPath.put(alias, dirPart.get(0));
+            }
+        }
+
+        Boolean visited = tasksVisited.get(task);
+        if (visited != null && visited.booleanValue() == true) {
+            return mapRootOps;
+        }
+
+        // do that only for union operator
+        for (Operator op : mapRootOps)
+            if (op.getParentOperators() != null)
+                op.getParentOperators().clear();
+
+        List<Operator> mapLeaves = new ArrayList<Operator>();
+        downToLeaves(mapRootOps, mapLeaves);
+        List<Operator> reduceOps = new ArrayList<Operator>();
+
+        if (work.getReducer() != null)
+            reduceOps.add(work.getReducer());
+
+        for (Operator mapLeaf : mapLeaves) {
+            mapLeaf.setChildOperators(reduceOps);
+        }
+
+        for (Operator reduceOp : reduceOps) {
+            if (reduceOp != null)
+                reduceOp.setParentOperators(mapLeaves);
+        }
+
+        List<Operator> leafs = new ArrayList<Operator>();
+        if (reduceOps.size() > 0) {
+            downToLeaves(reduceOps, leafs);
+        } else {
+            leafs = mapLeaves;
+        }
+
+        List<Operator> mapChildren = new ArrayList<Operator>();
+        if (task.getChildTasks() != null && task.getChildTasks().size() > 0) {
+            for (Object child : task.getChildTasks()) {
+                List<Operator> childMapOps = articulateMapReduceOperators((Task) child, rootOps, aliasToPath, rootTasks);
+                if (childMapOps == null)
+                    continue;
+
+                for (Operator childMap : childMapOps) {
+                    if (childMap instanceof TableScanOperator) {
+                        TableScanDesc topDesc = (TableScanDesc) childMap.getConf();
+                        if (topDesc == null)
+                            mapChildren.add(childMap);
+                        else {
+                            rootOps.add(childMap);
+                        }
+                    } else {
+                        // if not table scan, add the child
+                        mapChildren.add(childMap);
+                    }
+                }
+            }
+
+            if (mapChildren.size() > 0) {
+                int i = 0;
+                for (Operator leaf : leafs) {
+                    if (leaf.getChildOperators() == null || leaf.getChildOperators().size() == 0)
+                        leaf.setChildOperators(new ArrayList<Operator>());
+                    leaf.getChildOperators().add(mapChildren.get(i));
+                    i++;
+                }
+                i = 0;
+                for (Operator child : mapChildren) {
+                    if (child.getParentOperators() == null || child.getParentOperators().size() == 0)
+                        child.setParentOperators(new ArrayList<Operator>());
+                    child.getParentOperators().add(leafs.get(i));
+                    i++;
+                }
+            }
+        }
+
+        // mark this task as visited
+        this.tasksVisited.put(task, true);
+        return mapRootOps;
+    }
+
+    /**
+     * down to leaf nodes
+     * 
+     * @param ops
+     * @param leaves
+     */
+    private void downToLeaves(List<Operator> ops, List<Operator> leaves) {
+
+        // Operator currentOp;
+        for (Operator op : ops) {
+            if (op != null && op.getChildOperators() != null && op.getChildOperators().size() > 0) {
+                downToLeaves(op.getChildOperators(), leaves);
+            } else {
+                if (op != null && leaves.indexOf(op) < 0)
+                    leaves.add(op);
+            }
+        }
+    }
+
+    private void getLeaves(List<Operator> roots, List<Operator> currentLeaves) {
+        for (Operator op : roots) {
+            List<Operator> children = op.getChildOperators();
+            if (children == null || children.size() <= 0) {
+                currentLeaves.add(op);
+            } else {
+                getLeaves(children, currentLeaves);
+            }
+        }
+    }
+
+    private void executeHyracksJob(JobSpecification job) throws Exception {
+
+        /**
+         * load the properties file if it is not loaded
+         */
+        if (clusterProps == null) {
+            clusterProps = new Properties();
+            InputStream confIn = new FileInputStream(clusterPropertiesPath);
+            clusterProps.load(confIn);
+            confIn.close();
+        }
+
+        if (hcc == null) {
+            BufferedReader ipReader = new BufferedReader(new InputStreamReader(new FileInputStream(masterFilePath)));
+            String masterNode = ipReader.readLine();
+            ipReader.close();
+
+            InetAddress[] ips = InetAddress.getAllByName(masterNode);
+            int port = Integer.parseInt(clusterProps.getProperty("CC_CLIENTPORT"));
+            for (InetAddress ip : ips) {
+                if (ip.getAddress().length <= 4) {
+                    try {
+                        hcc = new HyracksConnection(ip.getHostAddress(), port);
+                        break;
+                    } catch (Exception e) {
+                        continue;
+                    }
+                }
+            }
+        }
+
+        long start = System.currentTimeMillis();
+        JobId jobId = hcc.startJob(job);
+        hcc.waitForCompletion(jobId);
+
+        // System.out.println("job finished: " + jobId.toString());
+        // call all leave nodes to end
+        for (Operator leaf : leaveOps) {
+            jobClose(leaf);
+        }
+
+        long end = System.currentTimeMillis();
+        System.err.println(start + " " + end + " " + (end - start));
+    }
+
+    /**
+     * mv to final directory on hdfs (not real final)
+     * 
+     * @param leaf
+     * @throws Exception
+     */
+    private void jobClose(Operator leaf) throws Exception {
+        FileSinkOperator fsOp = (FileSinkOperator) leaf;
+        FileSinkDesc desc = fsOp.getConf();
+        boolean isNativeTable = !desc.getTableInfo().isNonNative();
+        if ((conf != null) && isNativeTable) {
+            String specPath = desc.getDirName();
+            DynamicPartitionCtx dpCtx = desc.getDynPartCtx();
+            // for 0.7.0
+            fsOp.mvFileToFinalPath(specPath, conf, true, LOG, dpCtx);
+            // for 0.8.0
+            // Utilities.mvFileToFinalPath(specPath, conf, true, LOG, dpCtx,
+            // desc);
+        }
+    }
+}
diff --git a/hivesterix/hivesterix-dist/src/main/java/edu/uci/ics/hivesterix/runtime/exec/IExecutionEngine.java b/hivesterix/hivesterix-dist/src/main/java/edu/uci/ics/hivesterix/runtime/exec/IExecutionEngine.java
index c64a39b..8f62d87 100644
--- a/hivesterix/hivesterix-dist/src/main/java/edu/uci/ics/hivesterix/runtime/exec/IExecutionEngine.java
+++ b/hivesterix/hivesterix-dist/src/main/java/edu/uci/ics/hivesterix/runtime/exec/IExecutionEngine.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.exec;
 
 import java.io.Serializable;
diff --git a/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/ql/Driver.java b/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/ql/Driver.java
index a385742..4ef74e9 100644
--- a/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/ql/Driver.java
+++ b/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/ql/Driver.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
@@ -430,10 +444,11 @@
 
             // hyracks run
             if (sem instanceof SemanticAnalyzer && command.toLowerCase().indexOf("create") < 0) {
-                hivesterix = true;
-                return engine.compileJob(sem.getRootTasks());
+                int engineRet = engine.compileJob(sem.getRootTasks());
+                if (engineRet == 0) {
+                    hivesterix = true;
+                }
             }
-
             return 0;
         } catch (SemanticException e) {
             errorMessage = "FAILED: Error in semantic analysis: " + e.getMessage();
diff --git a/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFAverage.java b/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFAverage.java
index 0f445f4..78896c4 100644
--- a/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFAverage.java
+++ b/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFAverage.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFCorrelation.java b/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFCorrelation.java
index 2c4022e..8db5c15 100644
--- a/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFCorrelation.java
+++ b/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFCorrelation.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFCount.java b/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFCount.java
index dc5eef0..2d5191d 100644
--- a/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFCount.java
+++ b/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFCount.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFCovariance.java b/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFCovariance.java
index 0c4448b..0e98e11 100644
--- a/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFCovariance.java
+++ b/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFCovariance.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFSum.java b/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFSum.java
index afdc397..61a32e5 100644
--- a/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFSum.java
+++ b/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFSum.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFVariance.java b/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFVariance.java
index e839008..d3da16d 100644
--- a/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFVariance.java
+++ b/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDAFVariance.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/serde2/lazy/objectinspector/LazyObjectInspectorFactory.java b/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/serde2/lazy/objectinspector/LazyObjectInspectorFactory.java
index 7920001..1219b46 100644
--- a/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/serde2/lazy/objectinspector/LazyObjectInspectorFactory.java
+++ b/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/serde2/lazy/objectinspector/LazyObjectInspectorFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/serde2/typeinfo/TypeInfoFactory.java b/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/serde2/typeinfo/TypeInfoFactory.java
index 95b999e..0fea4b9 100644
--- a/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/serde2/typeinfo/TypeInfoFactory.java
+++ b/hivesterix/hivesterix-dist/src/main/java/org/apache/hadoop/hive/serde2/typeinfo/TypeInfoFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-dist/src/main/resources/conf/cluster.properties b/hivesterix/hivesterix-dist/src/main/resources/conf/cluster.properties
index 056cce4..f5d12a1 100644
--- a/hivesterix/hivesterix-dist/src/main/resources/conf/cluster.properties
+++ b/hivesterix/hivesterix-dist/src/main/resources/conf/cluster.properties
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #The CC port for Hyracks clients
 CC_CLIENTPORT=3099
 
diff --git a/hivesterix/hivesterix-dist/src/main/resources/conf/debugnc.properties b/hivesterix/hivesterix-dist/src/main/resources/conf/debugnc.properties
index 27afa26..23e04c6 100755
--- a/hivesterix/hivesterix-dist/src/main/resources/conf/debugnc.properties
+++ b/hivesterix/hivesterix-dist/src/main/resources/conf/debugnc.properties
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #The tmp directory for nc to install jars
 NCTMP_DIR2=/tmp/t-1
 
diff --git a/hivesterix/hivesterix-dist/src/main/resources/conf/hive-default.xml b/hivesterix/hivesterix-dist/src/main/resources/conf/hive-default.xml
index 587eede..23a842a 100644
--- a/hivesterix/hivesterix-dist/src/main/resources/conf/hive-default.xml
+++ b/hivesterix/hivesterix-dist/src/main/resources/conf/hive-default.xml
@@ -1,4 +1,18 @@
 <?xml version="1.0"?>
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
 
 <configuration>
@@ -22,7 +36,8 @@
 			whereas hive uses -1 as its default value.
 			By setting this property to -1, Hive will automatically figure out what
 			should be the number of reducers.
-  </description>
+        	</description>
+        </property>
 
         <property>
 		<name>hive.hyracks.connectorpolicy</name>
diff --git a/hivesterix/hivesterix-dist/src/main/resources/conf/hive-log4j.properties b/hivesterix/hivesterix-dist/src/main/resources/conf/hive-log4j.properties
index 784a274..eab38a6 100644
--- a/hivesterix/hivesterix-dist/src/main/resources/conf/hive-log4j.properties
+++ b/hivesterix/hivesterix-dist/src/main/resources/conf/hive-log4j.properties
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #------------------------------------------------------------------------------
 #
 #  The following properties set the logging levels and log appender.  The
diff --git a/hivesterix/hivesterix-dist/src/main/resources/conf/topology-template.xml b/hivesterix/hivesterix-dist/src/main/resources/conf/topology-template.xml
index 4710706..2d64b15 100755
--- a/hivesterix/hivesterix-dist/src/main/resources/conf/topology-template.xml
+++ b/hivesterix/hivesterix-dist/src/main/resources/conf/topology-template.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <cluster-topology>
     <network-switch name="Global">
         <network-switch name="local">
diff --git a/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/cli.sh b/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/cli.sh
index 914aae3..b50f40b 100644
--- a/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/cli.sh
+++ b/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/cli.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.
diff --git a/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/help.sh b/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/help.sh
index 432859a..ee4a819 100644
--- a/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/help.sh
+++ b/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/help.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.
diff --git a/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/hiveserver.sh b/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/hiveserver.sh
index b5edce4..6b68ea0 100644
--- a/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/hiveserver.sh
+++ b/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/hiveserver.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.
diff --git a/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/hwi.sh b/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/hwi.sh
index f9cd8ec..0b7905e 100644
--- a/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/hwi.sh
+++ b/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/hwi.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.
diff --git a/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/jar.sh b/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/jar.sh
index b52f9a7..08dd8c7 100644
--- a/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/jar.sh
+++ b/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/jar.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.
diff --git a/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/lineage.sh b/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/lineage.sh
index 993bc8d..7d8ea0d 100644
--- a/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/lineage.sh
+++ b/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/lineage.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.
diff --git a/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/metastore.sh b/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/metastore.sh
index db15f6e..34c56d5 100644
--- a/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/metastore.sh
+++ b/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/metastore.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.
diff --git a/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/rcfilecat.sh b/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/rcfilecat.sh
index 3a9264b..6df6612 100644
--- a/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/rcfilecat.sh
+++ b/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/rcfilecat.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.
diff --git a/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/util/execHiveCmd.sh b/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/util/execHiveCmd.sh
index 167cc40..a7d84b8 100644
--- a/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/util/execHiveCmd.sh
+++ b/hivesterix/hivesterix-dist/src/main/resources/scripts/ext/util/execHiveCmd.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.
diff --git a/hivesterix/hivesterix-dist/src/main/resources/scripts/getip.sh b/hivesterix/hivesterix-dist/src/main/resources/scripts/getip.sh
index 1b44d09..0e737c5 100755
--- a/hivesterix/hivesterix-dist/src/main/resources/scripts/getip.sh
+++ b/hivesterix/hivesterix-dist/src/main/resources/scripts/getip.sh
@@ -1,4 +1,18 @@
 #!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #
 #------------------------------------------------------------------------
 # Copyright 2009-2013 by The Regents of the University of California
@@ -33,10 +47,15 @@
 		IPADDR=`/sbin/ifconfig lo | grep "inet " | awk '{print $2}' | cut -f 2 -d ':'`
         fi 
 else
-        IPADDR=`/sbin/ifconfig en1 | grep "inet " | awk '{print $2}' | cut -f 2 -d ':'`
-	if [ "$IPADDR" = "" ]
+        #Get IP Address
+        IPADDR=`/sbin/ifconfig en0 | grep "inet " | awk '{print $2}' | cut -f 2 -d ':'`
+        if [ "$IPADDR" = "" ]
         then
-                IPADDR=`/sbin/ifconfig lo0 | grep "inet " | awk '{print $2}' | cut -f 2 -d ':'`
+                IPADDR=`/sbin/ifconfig en1 | grep "inet " | awk '{print $2}' | cut -f 2 -d ':'`
+        fi
+        if [ "$IPADDR" = "" ]
+        then
+                IPADDR=`/sbin/ifconfig lo | grep "inet " | awk '{print $2}' | cut -f 2 -d ':'`
         fi
 
 fi
diff --git a/hivesterix/hivesterix-dist/src/main/resources/scripts/hive-config.sh b/hivesterix/hivesterix-dist/src/main/resources/scripts/hive-config.sh
index 2524bbc..c45878f 100755
--- a/hivesterix/hivesterix-dist/src/main/resources/scripts/hive-config.sh
+++ b/hivesterix/hivesterix-dist/src/main/resources/scripts/hive-config.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.
diff --git a/hivesterix/hivesterix-dist/src/main/resources/scripts/init-hive-dfs.sh b/hivesterix/hivesterix-dist/src/main/resources/scripts/init-hive-dfs.sh
index ec3997a..b19ce83 100755
--- a/hivesterix/hivesterix-dist/src/main/resources/scripts/init-hive-dfs.sh
+++ b/hivesterix/hivesterix-dist/src/main/resources/scripts/init-hive-dfs.sh
@@ -1,4 +1,18 @@
 #!/usr/bin/env bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
diff --git a/hivesterix/hivesterix-dist/src/main/resources/scripts/startAllNCs.sh b/hivesterix/hivesterix-dist/src/main/resources/scripts/startAllNCs.sh
index 34a318d..1084b84 100644
--- a/hivesterix/hivesterix-dist/src/main/resources/scripts/startAllNCs.sh
+++ b/hivesterix/hivesterix-dist/src/main/resources/scripts/startAllNCs.sh
@@ -1,4 +1,18 @@
 #!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #
 #------------------------------------------------------------------------
 # Copyright 2009-2013 by The Regents of the University of California
diff --git a/hivesterix/hivesterix-dist/src/main/resources/scripts/startCluster.sh b/hivesterix/hivesterix-dist/src/main/resources/scripts/startCluster.sh
index cddf9a4..55851e9 100644
--- a/hivesterix/hivesterix-dist/src/main/resources/scripts/startCluster.sh
+++ b/hivesterix/hivesterix-dist/src/main/resources/scripts/startCluster.sh
@@ -1,4 +1,18 @@
 #!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #
 #------------------------------------------------------------------------
 # Copyright 2009-2013 by The Regents of the University of California
diff --git a/hivesterix/hivesterix-dist/src/main/resources/scripts/startDebugNc.sh b/hivesterix/hivesterix-dist/src/main/resources/scripts/startDebugNc.sh
index cab8bb3..91cdaac 100755
--- a/hivesterix/hivesterix-dist/src/main/resources/scripts/startDebugNc.sh
+++ b/hivesterix/hivesterix-dist/src/main/resources/scripts/startDebugNc.sh
@@ -1,4 +1,18 @@
 #!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #
 #------------------------------------------------------------------------
 # Copyright 2009-2013 by The Regents of the University of California
diff --git a/hivesterix/hivesterix-dist/src/main/resources/scripts/startcc.sh b/hivesterix/hivesterix-dist/src/main/resources/scripts/startcc.sh
index 213b9eb..e2bcec4 100644
--- a/hivesterix/hivesterix-dist/src/main/resources/scripts/startcc.sh
+++ b/hivesterix/hivesterix-dist/src/main/resources/scripts/startcc.sh
@@ -1,4 +1,18 @@
 #!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #
 #------------------------------------------------------------------------
 # Copyright 2009-2013 by The Regents of the University of California
diff --git a/hivesterix/hivesterix-dist/src/main/resources/scripts/startnc.sh b/hivesterix/hivesterix-dist/src/main/resources/scripts/startnc.sh
index 904858d..b8ab54b 100644
--- a/hivesterix/hivesterix-dist/src/main/resources/scripts/startnc.sh
+++ b/hivesterix/hivesterix-dist/src/main/resources/scripts/startnc.sh
@@ -1,4 +1,18 @@
 #!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #
 #------------------------------------------------------------------------
 # Copyright 2009-2013 by The Regents of the University of California
diff --git a/hivesterix/hivesterix-dist/src/main/resources/scripts/stopAllNCs.sh b/hivesterix/hivesterix-dist/src/main/resources/scripts/stopAllNCs.sh
index 456ff68..7adbc01 100644
--- a/hivesterix/hivesterix-dist/src/main/resources/scripts/stopAllNCs.sh
+++ b/hivesterix/hivesterix-dist/src/main/resources/scripts/stopAllNCs.sh
@@ -1,4 +1,18 @@
 #!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #
 #------------------------------------------------------------------------
 # Copyright 2009-2013 by The Regents of the University of California
diff --git a/hivesterix/hivesterix-dist/src/main/resources/scripts/stopCluster.sh b/hivesterix/hivesterix-dist/src/main/resources/scripts/stopCluster.sh
index 6b829aa..4b5e5a5 100644
--- a/hivesterix/hivesterix-dist/src/main/resources/scripts/stopCluster.sh
+++ b/hivesterix/hivesterix-dist/src/main/resources/scripts/stopCluster.sh
@@ -1,4 +1,18 @@
 #!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #
 #------------------------------------------------------------------------
 # Copyright 2009-2013 by The Regents of the University of California
diff --git a/hivesterix/hivesterix-dist/src/main/resources/scripts/stopcc.sh b/hivesterix/hivesterix-dist/src/main/resources/scripts/stopcc.sh
index d7f78a8..199a665 100644
--- a/hivesterix/hivesterix-dist/src/main/resources/scripts/stopcc.sh
+++ b/hivesterix/hivesterix-dist/src/main/resources/scripts/stopcc.sh
@@ -1,4 +1,18 @@
 #!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #
 #------------------------------------------------------------------------
 # Copyright 2009-2013 by The Regents of the University of California
diff --git a/hivesterix/hivesterix-dist/src/main/resources/scripts/stopnc.sh b/hivesterix/hivesterix-dist/src/main/resources/scripts/stopnc.sh
index 5dc4ccd..b6a4920 100644
--- a/hivesterix/hivesterix-dist/src/main/resources/scripts/stopnc.sh
+++ b/hivesterix/hivesterix-dist/src/main/resources/scripts/stopnc.sh
@@ -1,4 +1,18 @@
 #!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #
 #------------------------------------------------------------------------
 # Copyright 2009-2013 by The Regents of the University of California
diff --git a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/perf/PerfTestCase.java b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/perf/PerfTestCase.java
index aa38fe7..31a9914 100644
--- a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/perf/PerfTestCase.java
+++ b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/perf/PerfTestCase.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.perf;
 
 import java.io.File;
diff --git a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/perf/PerfTestSuite.java b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/perf/PerfTestSuite.java
index 796842d..7cc8799 100644
--- a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/perf/PerfTestSuite.java
+++ b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/perf/PerfTestSuite.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.perf;
 
 import java.io.File;
diff --git a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/perf/PerfTestSuiteCaseGenerator.java b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/perf/PerfTestSuiteCaseGenerator.java
index 4777351..40b0009 100644
--- a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/perf/PerfTestSuiteCaseGenerator.java
+++ b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/perf/PerfTestSuiteCaseGenerator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.perf;
 
 import java.io.File;
diff --git a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/perf/PerfTestSuiteGenerator.java b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/perf/PerfTestSuiteGenerator.java
index aa38014..966ab19 100644
--- a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/perf/PerfTestSuiteGenerator.java
+++ b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/perf/PerfTestSuiteGenerator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.perf;
 
 import java.io.File;
diff --git a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/perf/base/AbstractPerfTestCase.java b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/perf/base/AbstractPerfTestCase.java
index 7e7db36..945240f 100644
--- a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/perf/base/AbstractPerfTestCase.java
+++ b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/perf/base/AbstractPerfTestCase.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.perf.base;
 
 import java.io.BufferedReader;
diff --git a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/perf/base/AbstractPerfTestSuiteClass.java b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/perf/base/AbstractPerfTestSuiteClass.java
index 393378f..142992b 100644
--- a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/perf/base/AbstractPerfTestSuiteClass.java
+++ b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/perf/base/AbstractPerfTestSuiteClass.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.perf.base;
 
 import java.io.BufferedReader;
diff --git a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/base/AbstractHivesterixTestCase.java b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/base/AbstractHivesterixTestCase.java
index ae5fa05..c05bf03 100644
--- a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/base/AbstractHivesterixTestCase.java
+++ b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/base/AbstractHivesterixTestCase.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.test.base;
 
 import java.io.BufferedReader;
diff --git a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/base/AbstractTestSuiteClass.java b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/base/AbstractTestSuiteClass.java
index 5e2e64e..2810512 100644
--- a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/base/AbstractTestSuiteClass.java
+++ b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/base/AbstractTestSuiteClass.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.test.base;
 
 import java.io.BufferedReader;
diff --git a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/datagen/RecordBalance.java b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/datagen/RecordBalance.java
index ac029b1..da73710 100644
--- a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/datagen/RecordBalance.java
+++ b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/datagen/RecordBalance.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.test.datagen;
 
 import java.io.IOException;
diff --git a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/legacy/LegacyTestCase.java b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/legacy/LegacyTestCase.java
index 32c1c3f..2dc3dae 100644
--- a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/legacy/LegacyTestCase.java
+++ b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/legacy/LegacyTestCase.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.test.legacy;
 
 import java.io.File;
diff --git a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/optimizer/OptimizerTestCase.java b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/optimizer/OptimizerTestCase.java
index 0e2a5d5..570f151 100644
--- a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/optimizer/OptimizerTestCase.java
+++ b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/optimizer/OptimizerTestCase.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.test.optimizer;
 
 import java.io.File;
diff --git a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/optimizer/OptimizerTestSuitGenerator.java b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/optimizer/OptimizerTestSuitGenerator.java
index c6b788f..984fc90 100644
--- a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/optimizer/OptimizerTestSuitGenerator.java
+++ b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/optimizer/OptimizerTestSuitGenerator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.test.optimizer;
 
 import java.io.File;
diff --git a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/optimizer/OptimizerTestSuite.java b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/optimizer/OptimizerTestSuite.java
index 13574ea..a33ac7e 100644
--- a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/optimizer/OptimizerTestSuite.java
+++ b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/optimizer/OptimizerTestSuite.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.test.optimizer;
 
 import java.io.File;
diff --git a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/optimizer/OptimizerTestSuiteCaseGenerator.java b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/optimizer/OptimizerTestSuiteCaseGenerator.java
index ee82eb3..5aac17a 100644
--- a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/optimizer/OptimizerTestSuiteCaseGenerator.java
+++ b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/optimizer/OptimizerTestSuiteCaseGenerator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.test.optimizer;
 
 import java.io.File;
diff --git a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/runtimefunction/RuntimeFunctionTestCase.java b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/runtimefunction/RuntimeFunctionTestCase.java
index fdc4c68..7c36a91 100644
--- a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/runtimefunction/RuntimeFunctionTestCase.java
+++ b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/runtimefunction/RuntimeFunctionTestCase.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.test.runtimefunction;
 
 import java.io.File;
diff --git a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/runtimefunction/RuntimeFunctionTestSuite.java b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/runtimefunction/RuntimeFunctionTestSuite.java
index 9610497..b024269 100644
--- a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/runtimefunction/RuntimeFunctionTestSuite.java
+++ b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/runtimefunction/RuntimeFunctionTestSuite.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.test.runtimefunction;
 
 import java.io.File;
diff --git a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/runtimefunction/RuntimeFunctionTestSuiteCaseGenerator.java b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/runtimefunction/RuntimeFunctionTestSuiteCaseGenerator.java
index a416759..7fefc9d 100644
--- a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/runtimefunction/RuntimeFunctionTestSuiteCaseGenerator.java
+++ b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/runtimefunction/RuntimeFunctionTestSuiteCaseGenerator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.test.runtimefunction;
 
 import java.io.File;
diff --git a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/runtimefunction/RuntimeFunctionTestSuiteGenerator.java b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/runtimefunction/RuntimeFunctionTestSuiteGenerator.java
index ca2bd6d..0593513 100644
--- a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/runtimefunction/RuntimeFunctionTestSuiteGenerator.java
+++ b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/runtimefunction/RuntimeFunctionTestSuiteGenerator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.test.runtimefunction;
 
 import java.io.File;
diff --git a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/serde/SerDeTest.java b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/serde/SerDeTest.java
index cd39c5a..c79c829 100644
--- a/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/serde/SerDeTest.java
+++ b/hivesterix/hivesterix-dist/src/test/java/edu/uci/ics/hivesterix/test/serde/SerDeTest.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-dist/src/test/resources/log4j.properties b/hivesterix/hivesterix-dist/src/test/resources/log4j.properties
index d5e6004..0be7ebf 100755
--- a/hivesterix/hivesterix-dist/src/test/resources/log4j.properties
+++ b/hivesterix/hivesterix-dist/src/test/resources/log4j.properties
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 # Define some default values that can be overridden by system properties
 hadoop.root.logger=FATAL,console
 hadoop.log.dir=.
diff --git a/hivesterix/hivesterix-dist/src/test/resources/logging.properties b/hivesterix/hivesterix-dist/src/test/resources/logging.properties
index 1cc34e1..9c8ab5f 100644
--- a/hivesterix/hivesterix-dist/src/test/resources/logging.properties
+++ b/hivesterix/hivesterix-dist/src/test/resources/logging.properties
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 ############################################################
 #  	Default Logging Configuration File
 #
diff --git a/hivesterix/hivesterix-dist/src/test/resources/optimizerts/hive/conf/hive-default.xml b/hivesterix/hivesterix-dist/src/test/resources/optimizerts/hive/conf/hive-default.xml
index d5d0149..8e76de3 100644
--- a/hivesterix/hivesterix-dist/src/test/resources/optimizerts/hive/conf/hive-default.xml
+++ b/hivesterix/hivesterix-dist/src/test/resources/optimizerts/hive/conf/hive-default.xml
@@ -1,4 +1,18 @@
 <?xml version="1.0"?>
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
 
 <configuration>
diff --git a/hivesterix/hivesterix-dist/src/test/resources/runtimefunctionts/hadoop/conf/core-site.xml b/hivesterix/hivesterix-dist/src/test/resources/runtimefunctionts/hadoop/conf/core-site.xml
index 47dfac5..5b1023c 100644
--- a/hivesterix/hivesterix-dist/src/test/resources/runtimefunctionts/hadoop/conf/core-site.xml
+++ b/hivesterix/hivesterix-dist/src/test/resources/runtimefunctionts/hadoop/conf/core-site.xml
@@ -1,4 +1,18 @@
 <?xml version="1.0"?>
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
 
 <!-- Put site-specific property overrides in this file. -->
diff --git a/hivesterix/hivesterix-dist/src/test/resources/runtimefunctionts/hadoop/conf/hdfs-site.xml b/hivesterix/hivesterix-dist/src/test/resources/runtimefunctionts/hadoop/conf/hdfs-site.xml
index 842e7ab..48b7167 100644
--- a/hivesterix/hivesterix-dist/src/test/resources/runtimefunctionts/hadoop/conf/hdfs-site.xml
+++ b/hivesterix/hivesterix-dist/src/test/resources/runtimefunctionts/hadoop/conf/hdfs-site.xml
@@ -1,4 +1,18 @@
 <?xml version="1.0"?>
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
 
 <!-- Put site-specific property overrides in this file. -->
diff --git a/hivesterix/hivesterix-dist/src/test/resources/runtimefunctionts/hadoop/conf/mapred-site.xml b/hivesterix/hivesterix-dist/src/test/resources/runtimefunctionts/hadoop/conf/mapred-site.xml
index 1b9a4d6..64896af 100644
--- a/hivesterix/hivesterix-dist/src/test/resources/runtimefunctionts/hadoop/conf/mapred-site.xml
+++ b/hivesterix/hivesterix-dist/src/test/resources/runtimefunctionts/hadoop/conf/mapred-site.xml
@@ -1,4 +1,18 @@
 <?xml version="1.0"?>
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
 
 <!-- Put site-specific property overrides in this file. -->
diff --git a/hivesterix/hivesterix-dist/src/test/resources/runtimefunctionts/hive/conf/hive-default.xml b/hivesterix/hivesterix-dist/src/test/resources/runtimefunctionts/hive/conf/hive-default.xml
index e24aaa7..a4ee677 100644
--- a/hivesterix/hivesterix-dist/src/test/resources/runtimefunctionts/hive/conf/hive-default.xml
+++ b/hivesterix/hivesterix-dist/src/test/resources/runtimefunctionts/hive/conf/hive-default.xml
@@ -1,4 +1,18 @@
 <?xml version="1.0"?>
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
 
 <configuration>
diff --git a/hivesterix/hivesterix-dist/src/test/resources/runtimefunctionts/hive/conf/topology.xml b/hivesterix/hivesterix-dist/src/test/resources/runtimefunctionts/hive/conf/topology.xml
index 4710706..2d64b15 100644
--- a/hivesterix/hivesterix-dist/src/test/resources/runtimefunctionts/hive/conf/topology.xml
+++ b/hivesterix/hivesterix-dist/src/test/resources/runtimefunctionts/hive/conf/topology.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <cluster-topology>
     <network-switch name="Global">
         <network-switch name="local">
diff --git a/hivesterix/hivesterix-dist/src/test/resources/runtimefunctionts/logging.properties b/hivesterix/hivesterix-dist/src/test/resources/runtimefunctionts/logging.properties
index f42e321..a7d8d9c 100644
--- a/hivesterix/hivesterix-dist/src/test/resources/runtimefunctionts/logging.properties
+++ b/hivesterix/hivesterix-dist/src/test/resources/runtimefunctionts/logging.properties
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 ############################################################
 #  	Default Logging Configuration File
 #
diff --git a/hivesterix/hivesterix-optimizer/pom.xml b/hivesterix/hivesterix-optimizer/pom.xml
index 55d6adf..ba7c7ad 100644
--- a/hivesterix/hivesterix-optimizer/pom.xml
+++ b/hivesterix/hivesterix-optimizer/pom.xml
@@ -1,10 +1,24 @@
 <?xml version="1.0"?>
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<artifactId>hivesterix</artifactId>
 		<groupId>edu.uci.ics.hyracks</groupId>
-		<version>0.2.6-SNAPSHOT</version>
+		<version>0.2.7-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hivesterix-optimizer</artifactId>
@@ -30,14 +44,14 @@
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hivesterix-common</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hivesterix-translator</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
diff --git a/hivesterix/hivesterix-optimizer/src/main/java/edu/uci/ics/hivesterix/optimizer/rulecollections/HiveRuleCollections.java b/hivesterix/hivesterix-optimizer/src/main/java/edu/uci/ics/hivesterix/optimizer/rulecollections/HiveRuleCollections.java
index a049f15..959e73e 100644
--- a/hivesterix/hivesterix-optimizer/src/main/java/edu/uci/ics/hivesterix/optimizer/rulecollections/HiveRuleCollections.java
+++ b/hivesterix/hivesterix-optimizer/src/main/java/edu/uci/ics/hivesterix/optimizer/rulecollections/HiveRuleCollections.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.optimizer.rulecollections;
 
 import java.util.LinkedList;
diff --git a/hivesterix/hivesterix-optimizer/src/main/java/edu/uci/ics/hivesterix/optimizer/rules/InsertProjectBeforeWriteRule.java b/hivesterix/hivesterix-optimizer/src/main/java/edu/uci/ics/hivesterix/optimizer/rules/InsertProjectBeforeWriteRule.java
index 90777ee..6e2f3f3 100644
--- a/hivesterix/hivesterix-optimizer/src/main/java/edu/uci/ics/hivesterix/optimizer/rules/InsertProjectBeforeWriteRule.java
+++ b/hivesterix/hivesterix-optimizer/src/main/java/edu/uci/ics/hivesterix/optimizer/rules/InsertProjectBeforeWriteRule.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.optimizer.rules;
 
 import java.util.ArrayList;
diff --git a/hivesterix/hivesterix-optimizer/src/main/java/edu/uci/ics/hivesterix/optimizer/rules/IntroduceEarlyProjectRule.java b/hivesterix/hivesterix-optimizer/src/main/java/edu/uci/ics/hivesterix/optimizer/rules/IntroduceEarlyProjectRule.java
index 0a18629..39ae2d3 100644
--- a/hivesterix/hivesterix-optimizer/src/main/java/edu/uci/ics/hivesterix/optimizer/rules/IntroduceEarlyProjectRule.java
+++ b/hivesterix/hivesterix-optimizer/src/main/java/edu/uci/ics/hivesterix/optimizer/rules/IntroduceEarlyProjectRule.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.optimizer.rules;
 
 import java.util.ArrayList;
diff --git a/hivesterix/hivesterix-optimizer/src/main/java/edu/uci/ics/hivesterix/optimizer/rules/LocalGroupByRule.java b/hivesterix/hivesterix-optimizer/src/main/java/edu/uci/ics/hivesterix/optimizer/rules/LocalGroupByRule.java
index 90ca008..cd5d27b 100644
--- a/hivesterix/hivesterix-optimizer/src/main/java/edu/uci/ics/hivesterix/optimizer/rules/LocalGroupByRule.java
+++ b/hivesterix/hivesterix-optimizer/src/main/java/edu/uci/ics/hivesterix/optimizer/rules/LocalGroupByRule.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.optimizer.rules;
 
 import org.apache.commons.lang3.mutable.Mutable;
diff --git a/hivesterix/hivesterix-optimizer/src/main/java/edu/uci/ics/hivesterix/optimizer/rules/RemoveRedundantSelectRule.java b/hivesterix/hivesterix-optimizer/src/main/java/edu/uci/ics/hivesterix/optimizer/rules/RemoveRedundantSelectRule.java
index 44ff12d..0dfe5c5 100644
--- a/hivesterix/hivesterix-optimizer/src/main/java/edu/uci/ics/hivesterix/optimizer/rules/RemoveRedundantSelectRule.java
+++ b/hivesterix/hivesterix-optimizer/src/main/java/edu/uci/ics/hivesterix/optimizer/rules/RemoveRedundantSelectRule.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.optimizer.rules;
 
 import org.apache.commons.lang3.mutable.Mutable;
diff --git a/hivesterix/hivesterix-runtime/pom.xml b/hivesterix/hivesterix-runtime/pom.xml
index 18b8f62..e4f5416 100644
--- a/hivesterix/hivesterix-runtime/pom.xml
+++ b/hivesterix/hivesterix-runtime/pom.xml
@@ -1,14 +1,26 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
 	<modelVersion>4.0.0</modelVersion>
-	<groupId>edu.uci.ics.hyracks</groupId>
 	<artifactId>hivesterix-runtime</artifactId>
-	<version>0.2.6-SNAPSHOT</version>
 	<name>hivesterix-runtime</name>
 
 	<parent>
                 <groupId>edu.uci.ics.hyracks</groupId>
                 <artifactId>hivesterix</artifactId>
-                <version>0.2.6-SNAPSHOT</version>
+                <version>0.2.7-SNAPSHOT</version>
         </parent>
 
 	<dependencies>
@@ -276,35 +288,35 @@
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>algebricks-compiler</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-control-cc</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-control-nc</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hivesterix-serde</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hivesterix-common</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/AbstractExpressionEvaluator.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/AbstractExpressionEvaluator.java
index ad02239..a5177c9 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/AbstractExpressionEvaluator.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/AbstractExpressionEvaluator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.evaluator;
 
 import java.io.DataOutput;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/AggregationFunctionEvaluator.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/AggregationFunctionEvaluator.java
index e500376..d061b23 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/AggregationFunctionEvaluator.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/AggregationFunctionEvaluator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.evaluator;
 
 import java.io.DataOutput;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/AggregatuibFunctionSerializableEvaluator.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/AggregatuibFunctionSerializableEvaluator.java
index 1933253..f4b77b8 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/AggregatuibFunctionSerializableEvaluator.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/AggregatuibFunctionSerializableEvaluator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.evaluator;
 
 import java.io.DataOutput;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/BufferSerDeUtil.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/BufferSerDeUtil.java
index 96065e5..afa4e62 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/BufferSerDeUtil.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/BufferSerDeUtil.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.evaluator;
 
 public class BufferSerDeUtil {
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/ColumnExpressionEvaluator.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/ColumnExpressionEvaluator.java
index 5647f6a..7792641 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/ColumnExpressionEvaluator.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/ColumnExpressionEvaluator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.evaluator;
 
 import org.apache.hadoop.hive.ql.exec.ExprNodeColumnEvaluator;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/ConstantExpressionEvaluator.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/ConstantExpressionEvaluator.java
index d8796ea..de0216e 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/ConstantExpressionEvaluator.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/ConstantExpressionEvaluator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.evaluator;
 
 import org.apache.hadoop.hive.ql.exec.ExprNodeConstantEvaluator;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/FieldExpressionEvaluator.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/FieldExpressionEvaluator.java
index 35560b6..094915b 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/FieldExpressionEvaluator.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/FieldExpressionEvaluator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.evaluator;
 
 import org.apache.hadoop.hive.ql.exec.ExprNodeFieldEvaluator;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/FunctionExpressionEvaluator.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/FunctionExpressionEvaluator.java
index 7ffec7a..e3b1257 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/FunctionExpressionEvaluator.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/FunctionExpressionEvaluator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.evaluator;
 
 import org.apache.hadoop.hive.ql.exec.ExprNodeGenericFuncEvaluator;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/NullExpressionEvaluator.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/NullExpressionEvaluator.java
index ca60385..22f3be6 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/NullExpressionEvaluator.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/NullExpressionEvaluator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.evaluator;
 
 import org.apache.hadoop.hive.ql.exec.ExprNodeNullEvaluator;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/SerializableBuffer.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/SerializableBuffer.java
index 676989e..f0ce82d 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/SerializableBuffer.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/SerializableBuffer.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.evaluator;
 
 import java.io.DataOutput;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/UDTFFunctionEvaluator.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/UDTFFunctionEvaluator.java
index 2e78663..d91b806 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/UDTFFunctionEvaluator.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/evaluator/UDTFFunctionEvaluator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.evaluator;
 
 import java.io.DataOutput;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveByteBinaryAscComparatorFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveByteBinaryAscComparatorFactory.java
index f3b76e4..5e65b6e 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveByteBinaryAscComparatorFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveByteBinaryAscComparatorFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.comparator;
 
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveByteBinaryDescComparatorFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveByteBinaryDescComparatorFactory.java
index 8d452dc..c5672f4 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveByteBinaryDescComparatorFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveByteBinaryDescComparatorFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.comparator;
 
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveDoubleBinaryAscComparatorFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveDoubleBinaryAscComparatorFactory.java
index 0b5350a..fe13de1 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveDoubleBinaryAscComparatorFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveDoubleBinaryAscComparatorFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.comparator;
 
 import edu.uci.ics.hivesterix.serde.lazy.LazyUtils;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveDoubleBinaryDescComparatorFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveDoubleBinaryDescComparatorFactory.java
index 2405956..3306278 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveDoubleBinaryDescComparatorFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveDoubleBinaryDescComparatorFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.comparator;
 
 import edu.uci.ics.hivesterix.serde.lazy.LazyUtils;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveFloatBinaryAscComparatorFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveFloatBinaryAscComparatorFactory.java
index 05a43e6..08f4a20 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveFloatBinaryAscComparatorFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveFloatBinaryAscComparatorFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.comparator;
 
 import edu.uci.ics.hivesterix.serde.lazy.LazyUtils;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveFloatBinaryDescComparatorFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveFloatBinaryDescComparatorFactory.java
index 2c44f97..bba3c97 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveFloatBinaryDescComparatorFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveFloatBinaryDescComparatorFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.comparator;
 
 import edu.uci.ics.hivesterix.serde.lazy.LazyUtils;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveIntegerBinaryAscComparatorFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveIntegerBinaryAscComparatorFactory.java
index 0127791..cdf15ba 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveIntegerBinaryAscComparatorFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveIntegerBinaryAscComparatorFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.comparator;
 
 import edu.uci.ics.hivesterix.serde.lazy.LazyUtils;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveIntegerBinaryDescComparatorFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveIntegerBinaryDescComparatorFactory.java
index 5116337..c9472f8 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveIntegerBinaryDescComparatorFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveIntegerBinaryDescComparatorFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.comparator;
 
 import edu.uci.ics.hivesterix.serde.lazy.LazyUtils;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveLongBinaryAscComparatorFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveLongBinaryAscComparatorFactory.java
index fa416a9..f91547e 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveLongBinaryAscComparatorFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveLongBinaryAscComparatorFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.comparator;
 
 import edu.uci.ics.hivesterix.serde.lazy.LazyUtils;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveLongBinaryDescComparatorFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveLongBinaryDescComparatorFactory.java
index e72dc62..ebdb69d 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveLongBinaryDescComparatorFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveLongBinaryDescComparatorFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.comparator;
 
 import edu.uci.ics.hivesterix.serde.lazy.LazyUtils;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveShortBinaryAscComparatorFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveShortBinaryAscComparatorFactory.java
index a3745fa..02ef065 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveShortBinaryAscComparatorFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveShortBinaryAscComparatorFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.comparator;
 
 import edu.uci.ics.hivesterix.serde.lazy.LazyUtils;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveShortBinaryDescComparatorFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveShortBinaryDescComparatorFactory.java
index 44d3f43..a4ce1f1 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveShortBinaryDescComparatorFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveShortBinaryDescComparatorFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.comparator;
 
 import edu.uci.ics.hivesterix.serde.lazy.LazyUtils;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveStringBinaryAscComparatorFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveStringBinaryAscComparatorFactory.java
index 6da9716..554b22f 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveStringBinaryAscComparatorFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveStringBinaryAscComparatorFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.comparator;
 
 import org.apache.hadoop.io.Text;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveStringBinaryDescComparatorFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveStringBinaryDescComparatorFactory.java
index c579711..3c0f08f 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveStringBinaryDescComparatorFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/comparator/HiveStringBinaryDescComparatorFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.comparator;
 
 import org.apache.hadoop.io.WritableComparator;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/AggregationFunctionFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/AggregationFunctionFactory.java
index d664341..09f0cb6 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/AggregationFunctionFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/AggregationFunctionFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.evaluator;
 
 import java.util.ArrayList;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/AggregationFunctionSerializableFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/AggregationFunctionSerializableFactory.java
index 54a1155..71d11c0 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/AggregationFunctionSerializableFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/AggregationFunctionSerializableFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.evaluator;
 
 import java.util.ArrayList;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/ColumnExpressionEvaluatorFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/ColumnExpressionEvaluatorFactory.java
index 6f51bfe..943dcf9 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/ColumnExpressionEvaluatorFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/ColumnExpressionEvaluatorFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.evaluator;
 
 import org.apache.hadoop.hive.ql.plan.ExprNodeColumnDesc;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/ConstantExpressionEvaluatorFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/ConstantExpressionEvaluatorFactory.java
index 4ecdb70..082f6ab 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/ConstantExpressionEvaluatorFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/ConstantExpressionEvaluatorFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.evaluator;
 
 import org.apache.hadoop.hive.ql.plan.ExprNodeConstantDesc;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/FieldExpressionEvaluatorFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/FieldExpressionEvaluatorFactory.java
index ef0c104..f1f8e9d 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/FieldExpressionEvaluatorFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/FieldExpressionEvaluatorFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.evaluator;
 
 import org.apache.hadoop.hive.ql.plan.ExprNodeFieldDesc;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/HiveExpressionRuntimeProvider.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/HiveExpressionRuntimeProvider.java
index c3b4b17..6c83c42 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/HiveExpressionRuntimeProvider.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/HiveExpressionRuntimeProvider.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.evaluator;
 
 import java.util.ArrayList;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/NullExpressionEvaluatorFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/NullExpressionEvaluatorFactory.java
index f37b825..7c20202 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/NullExpressionEvaluatorFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/NullExpressionEvaluatorFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.evaluator;
 
 import org.apache.hadoop.hive.ql.plan.ExprNodeNullDesc;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/ScalarFunctionExpressionEvaluatorFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/ScalarFunctionExpressionEvaluatorFactory.java
index cbac10a..8cd71ed 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/ScalarFunctionExpressionEvaluatorFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/ScalarFunctionExpressionEvaluatorFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.evaluator;
 
 import org.apache.hadoop.conf.Configuration;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/UnnestingFunctionFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/UnnestingFunctionFactory.java
index 3b22513..8ea55db 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/UnnestingFunctionFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/evaluator/UnnestingFunctionFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.evaluator;
 
 import org.apache.hadoop.hive.ql.plan.UDTFDesc;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/hashfunction/HiveDoubleBinaryHashFunctionFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/hashfunction/HiveDoubleBinaryHashFunctionFactory.java
index b636009..dc8042c 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/hashfunction/HiveDoubleBinaryHashFunctionFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/hashfunction/HiveDoubleBinaryHashFunctionFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.hashfunction;
 
 import edu.uci.ics.hivesterix.serde.lazy.LazyUtils;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/hashfunction/HiveIntegerBinaryHashFunctionFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/hashfunction/HiveIntegerBinaryHashFunctionFactory.java
index 90e6ce4..d2d24fe 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/hashfunction/HiveIntegerBinaryHashFunctionFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/hashfunction/HiveIntegerBinaryHashFunctionFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.hashfunction;
 
 import edu.uci.ics.hivesterix.serde.lazy.LazyUtils;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/hashfunction/HiveLongBinaryHashFunctionFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/hashfunction/HiveLongBinaryHashFunctionFactory.java
index 1b61f67..97ff346 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/hashfunction/HiveLongBinaryHashFunctionFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/hashfunction/HiveLongBinaryHashFunctionFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.hashfunction;
 
 import edu.uci.ics.hivesterix.serde.lazy.LazyUtils;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/hashfunction/HiveRawBinaryHashFunctionFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/hashfunction/HiveRawBinaryHashFunctionFactory.java
index f2b7b44..e164e0d 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/hashfunction/HiveRawBinaryHashFunctionFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/hashfunction/HiveRawBinaryHashFunctionFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.hashfunction;
 
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunction;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/hashfunction/HiveStingBinaryHashFunctionFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/hashfunction/HiveStingBinaryHashFunctionFactory.java
index a9cf6fd..0b56a3f 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/hashfunction/HiveStingBinaryHashFunctionFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/hashfunction/HiveStingBinaryHashFunctionFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.hashfunction;
 
 import edu.uci.ics.hivesterix.serde.lazy.LazyUtils;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/normalize/HiveDoubleAscNormalizedKeyComputerFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/normalize/HiveDoubleAscNormalizedKeyComputerFactory.java
index 6ac012f..2c7ac6b 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/normalize/HiveDoubleAscNormalizedKeyComputerFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/normalize/HiveDoubleAscNormalizedKeyComputerFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.normalize;
 
 import edu.uci.ics.hivesterix.serde.lazy.LazyUtils;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/normalize/HiveDoubleDescNormalizedKeyComputerFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/normalize/HiveDoubleDescNormalizedKeyComputerFactory.java
index 3044109..b32cadd 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/normalize/HiveDoubleDescNormalizedKeyComputerFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/normalize/HiveDoubleDescNormalizedKeyComputerFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.normalize;
 
 import edu.uci.ics.hyracks.api.dataflow.value.INormalizedKeyComputer;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/normalize/HiveIntegerAscNormalizedKeyComputerFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/normalize/HiveIntegerAscNormalizedKeyComputerFactory.java
index a1d4d48..15d3127 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/normalize/HiveIntegerAscNormalizedKeyComputerFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/normalize/HiveIntegerAscNormalizedKeyComputerFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.normalize;
 
 import edu.uci.ics.hivesterix.serde.lazy.LazyUtils;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/normalize/HiveIntegerDescNormalizedKeyComputerFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/normalize/HiveIntegerDescNormalizedKeyComputerFactory.java
index b8a30a8..c6e2a93 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/normalize/HiveIntegerDescNormalizedKeyComputerFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/normalize/HiveIntegerDescNormalizedKeyComputerFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.normalize;
 
 import edu.uci.ics.hivesterix.serde.lazy.LazyUtils;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/normalize/HiveLongAscNormalizedKeyComputerFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/normalize/HiveLongAscNormalizedKeyComputerFactory.java
index a893d19..71d87bc 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/normalize/HiveLongAscNormalizedKeyComputerFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/normalize/HiveLongAscNormalizedKeyComputerFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.normalize;
 
 import edu.uci.ics.hivesterix.serde.lazy.LazyUtils;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/normalize/HiveLongDescNormalizedKeyComputerFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/normalize/HiveLongDescNormalizedKeyComputerFactory.java
index cc5661b..1b0072b 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/normalize/HiveLongDescNormalizedKeyComputerFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/normalize/HiveLongDescNormalizedKeyComputerFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.normalize;
 
 import edu.uci.ics.hyracks.api.dataflow.value.INormalizedKeyComputer;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/normalize/HiveStringAscNormalizedKeyComputerFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/normalize/HiveStringAscNormalizedKeyComputerFactory.java
index d0429d6..50081c7 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/normalize/HiveStringAscNormalizedKeyComputerFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/normalize/HiveStringAscNormalizedKeyComputerFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.normalize;
 
 import edu.uci.ics.hivesterix.serde.lazy.LazyUtils;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/normalize/HiveStringDescNormalizedKeyComputerFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/normalize/HiveStringDescNormalizedKeyComputerFactory.java
index 15b2d27..c92add5 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/normalize/HiveStringDescNormalizedKeyComputerFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/normalize/HiveStringDescNormalizedKeyComputerFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.normalize;
 
 import edu.uci.ics.hivesterix.serde.lazy.LazyUtils;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/nullwriter/HiveNullWriterFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/nullwriter/HiveNullWriterFactory.java
index 590bd61..3830026 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/nullwriter/HiveNullWriterFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/factory/nullwriter/HiveNullWriterFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.factory.nullwriter;
 
 import java.io.DataOutput;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/inspector/HiveBinaryBooleanInspector.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/inspector/HiveBinaryBooleanInspector.java
index 677e20e..58e1a3d 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/inspector/HiveBinaryBooleanInspector.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/inspector/HiveBinaryBooleanInspector.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.inspector;
 
 import edu.uci.ics.hyracks.algebricks.data.IBinaryBooleanInspector;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/inspector/HiveBinaryBooleanInspectorFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/inspector/HiveBinaryBooleanInspectorFactory.java
index 22a6065..c10f1a7 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/inspector/HiveBinaryBooleanInspectorFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/inspector/HiveBinaryBooleanInspectorFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.inspector;
 
 import edu.uci.ics.hyracks.algebricks.data.IBinaryBooleanInspector;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/inspector/HiveBinaryIntegerInspector.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/inspector/HiveBinaryIntegerInspector.java
index 555afee..04954c2 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/inspector/HiveBinaryIntegerInspector.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/inspector/HiveBinaryIntegerInspector.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.inspector;
 
 import edu.uci.ics.hivesterix.serde.lazy.LazyUtils;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/inspector/HiveBinaryIntegerInspectorFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/inspector/HiveBinaryIntegerInspectorFactory.java
index bb93a60..79501ad 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/inspector/HiveBinaryIntegerInspectorFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/inspector/HiveBinaryIntegerInspectorFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.inspector;
 
 import edu.uci.ics.hyracks.algebricks.data.IBinaryIntegerInspector;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveConnectorPolicyAssignmentPolicy.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveConnectorPolicyAssignmentPolicy.java
index cfceb26..5a7b34e 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveConnectorPolicyAssignmentPolicy.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveConnectorPolicyAssignmentPolicy.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.jobgen;
 
 import edu.uci.ics.hyracks.api.dataflow.IConnectorDescriptor;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveDataSink.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveDataSink.java
index ccc2e6c..9f20b89 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveDataSink.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveDataSink.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.jobgen;
 
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSink;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveDataSource.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveDataSource.java
index 67b743b..01e9f09 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveDataSource.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveDataSource.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.jobgen;
 
 import java.util.List;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveDataSourcePartitioningProvider.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveDataSourcePartitioningProvider.java
index bb9c4ce..7f25495 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveDataSourcePartitioningProvider.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveDataSourcePartitioningProvider.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.jobgen;
 
 import java.util.LinkedList;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveDomain.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveDomain.java
index 8b1d3b5..238d57f 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveDomain.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveDomain.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.jobgen;
 
 import edu.uci.ics.hyracks.algebricks.core.algebra.properties.INodeDomain;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveMetaDataProvider.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveMetaDataProvider.java
index d7a1d7c..65e6277 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveMetaDataProvider.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveMetaDataProvider.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.jobgen;
 
 import java.util.HashMap;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveOperatorSchema.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveOperatorSchema.java
index cdb0e95..3f81e22 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveOperatorSchema.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveOperatorSchema.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.jobgen;
 
 import java.util.ArrayList;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveScanRuntimeGenerator.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveScanRuntimeGenerator.java
index 5e4e21e..63f95e8 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveScanRuntimeGenerator.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveScanRuntimeGenerator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.jobgen;
 
 import java.util.List;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveWriteRuntimeGenerator.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveWriteRuntimeGenerator.java
index 7a577e8..153d2c7 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveWriteRuntimeGenerator.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/HiveWriteRuntimeGenerator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.jobgen;
 
 import org.apache.hadoop.hive.ql.exec.FileSinkOperator;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/Schema.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/Schema.java
index 927c709..7f0e8ad 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/Schema.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/jobgen/Schema.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.jobgen;
 
 import java.io.Serializable;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/operator/filescan/HiveKeyValueParser.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/operator/filescan/HiveKeyValueParser.java
index 472994a..1bf4abe 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/operator/filescan/HiveKeyValueParser.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/operator/filescan/HiveKeyValueParser.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.operator.filescan;
 
 import java.io.DataOutput;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/operator/filescan/HiveKeyValueParserFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/operator/filescan/HiveKeyValueParserFactory.java
index 05903b9..09652d5 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/operator/filescan/HiveKeyValueParserFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/operator/filescan/HiveKeyValueParserFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.operator.filescan;
 
 import java.util.Properties;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/operator/filewrite/HiveFileWritePushRuntime.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/operator/filewrite/HiveFileWritePushRuntime.java
index 81faf38..e89a4c4 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/operator/filewrite/HiveFileWritePushRuntime.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/operator/filewrite/HiveFileWritePushRuntime.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.operator.filewrite;
 
 import java.nio.ByteBuffer;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/operator/filewrite/HivePushRuntimeFactory.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/operator/filewrite/HivePushRuntimeFactory.java
index 6c18231..26ce5fd 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/operator/filewrite/HivePushRuntimeFactory.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/operator/filewrite/HivePushRuntimeFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.operator.filewrite;
 
 import java.io.DataInputStream;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/provider/HiveBinaryComparatorFactoryProvider.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/provider/HiveBinaryComparatorFactoryProvider.java
index 467ec0a..6288664 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/provider/HiveBinaryComparatorFactoryProvider.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/provider/HiveBinaryComparatorFactoryProvider.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.provider;
 
 import org.apache.hadoop.hive.serde2.typeinfo.TypeInfoFactory;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/provider/HiveBinaryHashFunctionFactoryProvider.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/provider/HiveBinaryHashFunctionFactoryProvider.java
index 473eee1..23b7b96 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/provider/HiveBinaryHashFunctionFactoryProvider.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/provider/HiveBinaryHashFunctionFactoryProvider.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.provider;
 
 import org.apache.hadoop.hive.serde2.typeinfo.TypeInfoFactory;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/provider/HiveBinaryHashFunctionFamilyProvider.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/provider/HiveBinaryHashFunctionFamilyProvider.java
index 45302e8..ade3f84 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/provider/HiveBinaryHashFunctionFamilyProvider.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/provider/HiveBinaryHashFunctionFamilyProvider.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.provider;
 
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/provider/HiveNormalizedKeyComputerFactoryProvider.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/provider/HiveNormalizedKeyComputerFactoryProvider.java
index 91bf3e5..e59c0bd 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/provider/HiveNormalizedKeyComputerFactoryProvider.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/provider/HiveNormalizedKeyComputerFactoryProvider.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.provider;
 
 import org.apache.hadoop.hive.serde2.typeinfo.TypeInfoFactory;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/provider/HivePrinterFactoryProvider.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/provider/HivePrinterFactoryProvider.java
index 10c84d2..0c12dbc 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/provider/HivePrinterFactoryProvider.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/provider/HivePrinterFactoryProvider.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.provider;
 
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/provider/HiveSerializerDeserializerProvider.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/provider/HiveSerializerDeserializerProvider.java
index 22f81e0..b8fc429 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/provider/HiveSerializerDeserializerProvider.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/provider/HiveSerializerDeserializerProvider.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.provider;
 
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
diff --git a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/provider/HiveTypeTraitProvider.java b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/provider/HiveTypeTraitProvider.java
index be4b149..622161e 100644
--- a/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/provider/HiveTypeTraitProvider.java
+++ b/hivesterix/hivesterix-runtime/src/main/java/edu/uci/ics/hivesterix/runtime/provider/HiveTypeTraitProvider.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.runtime.provider;
 
 import java.io.Serializable;
diff --git a/hivesterix/hivesterix-serde/pom.xml b/hivesterix/hivesterix-serde/pom.xml
index bf5a9b8..97c9174 100644
--- a/hivesterix/hivesterix-serde/pom.xml
+++ b/hivesterix/hivesterix-serde/pom.xml
@@ -1,10 +1,24 @@
 <?xml version="1.0"?>
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<artifactId>hivesterix</artifactId>
 		<groupId>edu.uci.ics.hyracks</groupId>
-		<version>0.2.6-SNAPSHOT</version>
+		<version>0.2.7-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hivesterix-serde</artifactId>
@@ -44,14 +58,14 @@
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>algebricks-compiler</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
                         <groupId>edu.uci.ics.hyracks</groupId>
                         <artifactId>hivesterix-common</artifactId>
-                        <version>0.2.6-SNAPSHOT</version>
+                        <version>0.2.7-SNAPSHOT</version>
                         <type>jar</type>
                         <scope>compile</scope>
                 </dependency>
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/ByteArrayRef.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/ByteArrayRef.java
index 92415f9..d8090f4 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/ByteArrayRef.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/ByteArrayRef.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyArray.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyArray.java
index 33b20bf..0e22cac 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyArray.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyArray.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyBoolean.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyBoolean.java
index 5a48525..777c78e 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyBoolean.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyBoolean.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyByte.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyByte.java
index bf4ff04..aac90fe 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyByte.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyByte.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyColumnar.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyColumnar.java
index d73fea7..0da8c7a 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyColumnar.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyColumnar.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyDouble.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyDouble.java
index 1b2cc5a..425f4f3 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyDouble.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyDouble.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyFactory.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyFactory.java
index 7caa9ed..2870fa4 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyFactory.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyFloat.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyFloat.java
index 430ac2e..5ec5cac 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyFloat.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyFloat.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyInteger.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyInteger.java
index 0765c4f..e108364 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyInteger.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyInteger.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyLong.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyLong.java
index e6b56c3..8540805 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyLong.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyLong.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyMap.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyMap.java
index 9c7af2e..6fe9739 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyMap.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyMap.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyNonPrimitive.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyNonPrimitive.java
index f7ae1e3..9438a51 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyNonPrimitive.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyNonPrimitive.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyObject.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyObject.java
index dc1dc60..7b04c0d 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyObject.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyObject.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyPrimitive.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyPrimitive.java
index 8139c65..110035e 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyPrimitive.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyPrimitive.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazySerDe.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazySerDe.java
index 05b82ba..b5d64e8 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazySerDe.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazySerDe.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyShort.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyShort.java
index f493b37..da28e64 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyShort.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyShort.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyString.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyString.java
index 0293af8..71be572 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyString.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyString.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyStruct.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyStruct.java
index 47e95e4..aad6fb8 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyStruct.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyStruct.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyUtils.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyUtils.java
index 6554ccc..e97b250 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyUtils.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/LazyUtils.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/LazyColumnarObjectInspector.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/LazyColumnarObjectInspector.java
index b1ca622..9f2bbe7 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/LazyColumnarObjectInspector.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/LazyColumnarObjectInspector.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/LazyListObjectInspector.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/LazyListObjectInspector.java
index aaa5d66..1c30420 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/LazyListObjectInspector.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/LazyListObjectInspector.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/LazyMapObjectInspector.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/LazyMapObjectInspector.java
index 1b0c412..68dfc78 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/LazyMapObjectInspector.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/LazyMapObjectInspector.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/LazyObjectInspectorFactory.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/LazyObjectInspectorFactory.java
index 8093c94..70eb590 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/LazyObjectInspectorFactory.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/LazyObjectInspectorFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.serde.lazy.objectinspector;
 
 import java.util.ArrayList;
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/LazyStructObjectInspector.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/LazyStructObjectInspector.java
index ad70d4c..bac9ce1 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/LazyStructObjectInspector.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/LazyStructObjectInspector.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/AbstractPrimitiveLazyObjectInspector.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/AbstractPrimitiveLazyObjectInspector.java
index eaa2bbc..70878d1 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/AbstractPrimitiveLazyObjectInspector.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/AbstractPrimitiveLazyObjectInspector.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyBooleanObjectInspector.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyBooleanObjectInspector.java
index 7927c1e..2df3c63 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyBooleanObjectInspector.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyBooleanObjectInspector.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyByteObjectInspector.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyByteObjectInspector.java
index 10a881c..d10d867 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyByteObjectInspector.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyByteObjectInspector.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyDoubleObjectInspector.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyDoubleObjectInspector.java
index 9f98b56..f793ff1 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyDoubleObjectInspector.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyDoubleObjectInspector.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyFloatObjectInspector.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyFloatObjectInspector.java
index bf3e9a2..8f00f47 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyFloatObjectInspector.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyFloatObjectInspector.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyIntObjectInspector.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyIntObjectInspector.java
index 87bcb0d4..d05e67c 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyIntObjectInspector.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyIntObjectInspector.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyLongObjectInspector.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyLongObjectInspector.java
index 06b5d3c..16afae0 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyLongObjectInspector.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyLongObjectInspector.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyPrimitiveObjectInspectorFactory.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyPrimitiveObjectInspectorFactory.java
index 5d7ef48..199475a 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyPrimitiveObjectInspectorFactory.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyPrimitiveObjectInspectorFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyShortObjectInspector.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyShortObjectInspector.java
index b02d9bc..aacd240 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyShortObjectInspector.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyShortObjectInspector.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyStringObjectInspector.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyStringObjectInspector.java
index 4d649dc..4a8d930 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyStringObjectInspector.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyStringObjectInspector.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyVoidObjectInspector.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyVoidObjectInspector.java
index c916191..8b5b4a8 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyVoidObjectInspector.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/LazyVoidObjectInspector.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/PrimitiveObjectInspectorFactory.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/PrimitiveObjectInspectorFactory.java
index 33f0e51..abe9e28 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/PrimitiveObjectInspectorFactory.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/lazy/objectinspector/primitive/PrimitiveObjectInspectorFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/parser/IHiveParser.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/parser/IHiveParser.java
index 7830c52..60d73c6 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/parser/IHiveParser.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/parser/IHiveParser.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.serde.parser;
 
 import java.io.IOException;
diff --git a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/parser/TextToBinaryTupleParser.java b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/parser/TextToBinaryTupleParser.java
index 38e1b36..d2949df 100644
--- a/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/parser/TextToBinaryTupleParser.java
+++ b/hivesterix/hivesterix-serde/src/main/java/edu/uci/ics/hivesterix/serde/parser/TextToBinaryTupleParser.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.serde.parser;
 
 import java.io.DataOutput;
diff --git a/hivesterix/hivesterix-translator/pom.xml b/hivesterix/hivesterix-translator/pom.xml
index 7bcbb85..8a24d5e 100644
--- a/hivesterix/hivesterix-translator/pom.xml
+++ b/hivesterix/hivesterix-translator/pom.xml
@@ -1,4 +1,18 @@
 <?xml version="1.0"?>
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>hivesterix-translator</artifactId>
@@ -7,7 +21,7 @@
 	<parent>
 		<artifactId>hivesterix</artifactId>
 		<groupId>edu.uci.ics.hyracks</groupId>
-		<version>0.2.6-SNAPSHOT</version>
+		<version>0.2.7-SNAPSHOT</version>
 	</parent>
 
 	<build>
@@ -37,21 +51,21 @@
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>algebricks-compiler</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hivesterix-common</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hivesterix-runtime</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
diff --git a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/HiveAlgebricksTranslator.java b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/HiveAlgebricksTranslator.java
index 80b3fef..f32d85b 100644
--- a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/HiveAlgebricksTranslator.java
+++ b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/HiveAlgebricksTranslator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.logical.plan;
 
 import java.io.OutputStreamWriter;
diff --git a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/HiveLogicalPlanAndMetaData.java b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/HiveLogicalPlanAndMetaData.java
index d5801a3..7197975 100644
--- a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/HiveLogicalPlanAndMetaData.java
+++ b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/HiveLogicalPlanAndMetaData.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.logical.plan;
 
 import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
diff --git a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/HiveOperatorAnnotations.java b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/HiveOperatorAnnotations.java
index 0ea4e01..6f27c59 100644
--- a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/HiveOperatorAnnotations.java
+++ b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/HiveOperatorAnnotations.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.logical.plan;
 
 public class HiveOperatorAnnotations {
diff --git a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/ExtractVisitor.java b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/ExtractVisitor.java
index 1c67bae..fab3e34 100644
--- a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/ExtractVisitor.java
+++ b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/ExtractVisitor.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.logical.plan.visitor;
 
 import java.util.List;
diff --git a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/FilterVisitor.java b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/FilterVisitor.java
index 9279144..03c8173 100644
--- a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/FilterVisitor.java
+++ b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/FilterVisitor.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.logical.plan.visitor;
 
 import java.util.List;
diff --git a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/GroupByVisitor.java b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/GroupByVisitor.java
index b7d5779..82c619a 100644
--- a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/GroupByVisitor.java
+++ b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/GroupByVisitor.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.logical.plan.visitor;
 
 import java.lang.reflect.Field;
diff --git a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/JoinVisitor.java b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/JoinVisitor.java
index ef346bc..a4022d1 100644
--- a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/JoinVisitor.java
+++ b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/JoinVisitor.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.logical.plan.visitor;
 
 import java.util.ArrayList;
diff --git a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/LateralViewJoinVisitor.java b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/LateralViewJoinVisitor.java
index cc19364..f4161a4 100644
--- a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/LateralViewJoinVisitor.java
+++ b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/LateralViewJoinVisitor.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.logical.plan.visitor;
 
 import java.util.ArrayList;
diff --git a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/LimitVisitor.java b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/LimitVisitor.java
index cc10f8f..0876642 100644
--- a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/LimitVisitor.java
+++ b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/LimitVisitor.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.logical.plan.visitor;
 
 import java.util.List;
diff --git a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/MapJoinVisitor.java b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/MapJoinVisitor.java
index 4aba6a4..186b291 100644
--- a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/MapJoinVisitor.java
+++ b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/MapJoinVisitor.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.logical.plan.visitor;
 
 import java.io.Serializable;
diff --git a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/ProjectVisitor.java b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/ProjectVisitor.java
index eb0922f..d69fb1c 100644
--- a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/ProjectVisitor.java
+++ b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/ProjectVisitor.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.logical.plan.visitor;
 
 import java.util.ArrayList;
diff --git a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/SortVisitor.java b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/SortVisitor.java
index 325b632..277af50 100644
--- a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/SortVisitor.java
+++ b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/SortVisitor.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.logical.plan.visitor;
 
 import java.util.ArrayList;
diff --git a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/TableScanWriteVisitor.java b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/TableScanWriteVisitor.java
index 3af1832..74cebaa 100644
--- a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/TableScanWriteVisitor.java
+++ b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/TableScanWriteVisitor.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.logical.plan.visitor;
 
 import java.util.ArrayList;
diff --git a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/UnionVisitor.java b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/UnionVisitor.java
index 96b9463..1cb5121 100644
--- a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/UnionVisitor.java
+++ b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/UnionVisitor.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.logical.plan.visitor;
 
 import java.util.ArrayList;
diff --git a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/base/DefaultVisitor.java b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/base/DefaultVisitor.java
index d298553..f79b79f 100644
--- a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/base/DefaultVisitor.java
+++ b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/base/DefaultVisitor.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.logical.plan.visitor.base;
 
 import org.apache.commons.lang3.mutable.Mutable;
diff --git a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/base/Translator.java b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/base/Translator.java
index 8aa139a..32b0f66 100644
--- a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/base/Translator.java
+++ b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/base/Translator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.logical.plan.visitor.base;
 
 import java.util.ArrayList;
diff --git a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/base/Visitor.java b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/base/Visitor.java
index 11ae357..2291d5f 100644
--- a/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/base/Visitor.java
+++ b/hivesterix/hivesterix-translator/src/main/java/edu/uci/ics/hivesterix/logical/plan/visitor/base/Visitor.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hivesterix.logical.plan.visitor.base;
 
 import org.apache.commons.lang3.mutable.Mutable;
diff --git a/hivesterix/pom.xml b/hivesterix/pom.xml
index 3a212ec..2bee50c 100644
--- a/hivesterix/pom.xml
+++ b/hivesterix/pom.xml
@@ -1,9 +1,23 @@
 <?xml version="1.0" encoding="UTF-8"?>
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>edu.uci.ics.hyracks</groupId>
 	<artifactId>hivesterix</artifactId>
-	<version>0.2.6-SNAPSHOT</version>
+	<version>0.2.7-SNAPSHOT</version>
 	<packaging>pom</packaging>
 	<name>hivesterix</name>
 
diff --git a/hyracks/hyracks-api/pom.xml b/hyracks/hyracks-api/pom.xml
index 04a64c1..0d75de4 100644
--- a/hyracks/hyracks-api/pom.xml
+++ b/hyracks/hyracks-api/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-api</artifactId>
@@ -5,7 +19,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -47,7 +61,7 @@
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-ipc</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   	</dependency>
   	<dependency>
   		<groupId>org.apache.commons</groupId>
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/application/IApplicationContext.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/application/IApplicationContext.java
index 6ee719b..df7b768 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/application/IApplicationContext.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/application/IApplicationContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -15,6 +15,7 @@
 package edu.uci.ics.hyracks.api.application;
 
 import java.io.Serializable;
+import java.util.concurrent.ThreadFactory;
 
 import edu.uci.ics.hyracks.api.job.IJobSerializerDeserializerContainer;
 import edu.uci.ics.hyracks.api.messages.IMessageBroker;
@@ -39,4 +40,8 @@
 
     public IJobSerializerDeserializerContainer getJobSerializerDeserializerContainer();
 
+    public ThreadFactory getThreadFactory();
+
+    public void setThreadFactory(ThreadFactory threadFactory);
+
 }
\ No newline at end of file
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/application/ICCApplicationContext.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/application/ICCApplicationContext.java
index 733c7d3..7a795da 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/application/ICCApplicationContext.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/application/ICCApplicationContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/application/ICCApplicationEntryPoint.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/application/ICCApplicationEntryPoint.java
index c22cc51..5530951 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/application/ICCApplicationEntryPoint.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/application/ICCApplicationEntryPoint.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.api.application;
 
 public interface ICCApplicationEntryPoint {
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/application/INCApplicationContext.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/application/INCApplicationContext.java
index e13fc6e..3d70a40 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/application/INCApplicationContext.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/application/INCApplicationContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/application/INCApplicationEntryPoint.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/application/INCApplicationEntryPoint.java
index 9a25b3c..4cdfbbb 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/application/INCApplicationEntryPoint.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/application/INCApplicationEntryPoint.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.api.application;
 
 public interface INCApplicationEntryPoint {
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/channels/IInputChannel.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/channels/IInputChannel.java
index a4f0b29..660e8b1 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/channels/IInputChannel.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/channels/IInputChannel.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/channels/IInputChannelMonitor.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/channels/IInputChannelMonitor.java
index 065f4c5..5b737ad 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/channels/IInputChannelMonitor.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/channels/IInputChannelMonitor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/ClusterControllerInfo.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/ClusterControllerInfo.java
index 8dd4d6c..110d1e2 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/ClusterControllerInfo.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/ClusterControllerInfo.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/HyracksClientInterfaceFunctions.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/HyracksClientInterfaceFunctions.java
index 0467eae..55d80e2 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/HyracksClientInterfaceFunctions.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/HyracksClientInterfaceFunctions.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/HyracksClientInterfaceRemoteProxy.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/HyracksClientInterfaceRemoteProxy.java
index 36ceb18..2bac49f 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/HyracksClientInterfaceRemoteProxy.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/HyracksClientInterfaceRemoteProxy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/HyracksConnection.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/HyracksConnection.java
index 6af8dd9..98836cd 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/HyracksConnection.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/HyracksConnection.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/IHyracksClientConnection.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/IHyracksClientConnection.java
index 41b07d7..2820cdf 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/IHyracksClientConnection.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/IHyracksClientConnection.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/IHyracksClientInterface.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/IHyracksClientInterface.java
index aabc351..737152b 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/IHyracksClientInterface.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/IHyracksClientInterface.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/NodeControllerInfo.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/NodeControllerInfo.java
index 73b5488..73c085d 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/NodeControllerInfo.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/NodeControllerInfo.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/NodeStatus.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/NodeStatus.java
index d6b99d0..c860e40 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/NodeStatus.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/NodeStatus.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/impl/ActivityClusterGraphBuilder.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/impl/ActivityClusterGraphBuilder.java
index 6c6c211..39641a6 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/impl/ActivityClusterGraphBuilder.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/impl/ActivityClusterGraphBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/impl/IConnectorDescriptorVisitor.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/impl/IConnectorDescriptorVisitor.java
index 5b508b3..4838b83 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/impl/IConnectorDescriptorVisitor.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/impl/IConnectorDescriptorVisitor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/impl/IOperatorDescriptorVisitor.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/impl/IOperatorDescriptorVisitor.java
index fcdf9f0..22382a5 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/impl/IOperatorDescriptorVisitor.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/impl/IOperatorDescriptorVisitor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/impl/JobActivityGraphBuilder.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/impl/JobActivityGraphBuilder.java
index b4b9b3c..2ccf753 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/impl/JobActivityGraphBuilder.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/impl/JobActivityGraphBuilder.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.api.client.impl;
 
 import java.util.ArrayList;
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/impl/JobSpecificationActivityClusterGraphGeneratorFactory.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/impl/JobSpecificationActivityClusterGraphGeneratorFactory.java
index 3431c40..79efaa0 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/impl/JobSpecificationActivityClusterGraphGeneratorFactory.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/impl/JobSpecificationActivityClusterGraphGeneratorFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.api.client.impl;
 
 import java.util.EnumSet;
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/impl/PlanUtils.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/impl/PlanUtils.java
index 30f26c7..4fa52cd 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/impl/PlanUtils.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/client/impl/PlanUtils.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/FrameConstants.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/FrameConstants.java
index cc76bd4..0dc97bc 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/FrameConstants.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/FrameConstants.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/FrameHelper.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/FrameHelper.java
index c8478d6..a6774c7 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/FrameHelper.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/FrameHelper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/IFrameReader.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/IFrameReader.java
index 0188578..c72782a 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/IFrameReader.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/IFrameReader.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/IFrameTupleAccessor.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/IFrameTupleAccessor.java
index 8b82728..ee34add 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/IFrameTupleAccessor.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/IFrameTupleAccessor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/IFrameWriter.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/IFrameWriter.java
index a85bd7e..83aa0f2 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/IFrameWriter.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/IFrameWriter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/IPartitionCollector.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/IPartitionCollector.java
index 89e6da3..c17b39a 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/IPartitionCollector.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/IPartitionCollector.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/IPartitionWriterFactory.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/IPartitionWriterFactory.java
index e15ec6d..3c10395 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/IPartitionWriterFactory.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/IPartitionWriterFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/NetworkAddress.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/NetworkAddress.java
index 563fdc1..e93ebeb 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/NetworkAddress.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/NetworkAddress.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/PartitionChannel.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/PartitionChannel.java
index b75ed07..5f3cffa 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/PartitionChannel.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/comm/PartitionChannel.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/constraints/Constraint.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/constraints/Constraint.java
index 0668e00..4350a6c 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/constraints/Constraint.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/constraints/Constraint.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/constraints/IConstraintAcceptor.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/constraints/IConstraintAcceptor.java
index 2e41b0a..806d71b 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/constraints/IConstraintAcceptor.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/constraints/IConstraintAcceptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/constraints/PartitionConstraintHelper.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/constraints/PartitionConstraintHelper.java
index 0e4ca69..9c60563 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/constraints/PartitionConstraintHelper.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/constraints/PartitionConstraintHelper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/constraints/expressions/ConstantExpression.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/constraints/expressions/ConstantExpression.java
index 6e10911..f7c8414 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/constraints/expressions/ConstantExpression.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/constraints/expressions/ConstantExpression.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/constraints/expressions/ConstraintExpression.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/constraints/expressions/ConstraintExpression.java
index 811c048..59f97d6 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/constraints/expressions/ConstraintExpression.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/constraints/expressions/ConstraintExpression.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/constraints/expressions/LValueConstraintExpression.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/constraints/expressions/LValueConstraintExpression.java
index 7557460..1186dde 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/constraints/expressions/LValueConstraintExpression.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/constraints/expressions/LValueConstraintExpression.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/constraints/expressions/PartitionCountExpression.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/constraints/expressions/PartitionCountExpression.java
index dc73947..3e3597a 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/constraints/expressions/PartitionCountExpression.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/constraints/expressions/PartitionCountExpression.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/constraints/expressions/PartitionLocationExpression.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/constraints/expressions/PartitionLocationExpression.java
index fbfdc1c..ccd816a 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/constraints/expressions/PartitionLocationExpression.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/constraints/expressions/PartitionLocationExpression.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/context/ICCContext.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/context/ICCContext.java
index 1e49fe2..86d5d1b 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/context/ICCContext.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/context/ICCContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/context/IHyracksCommonContext.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/context/IHyracksCommonContext.java
index 54f027c..c75f9f9 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/context/IHyracksCommonContext.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/context/IHyracksCommonContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/context/IHyracksJobletContext.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/context/IHyracksJobletContext.java
index f8c5b6a..c0d7e4d 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/context/IHyracksJobletContext.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/context/IHyracksJobletContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/context/IHyracksRootContext.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/context/IHyracksRootContext.java
index c4989c5..9d4718e 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/context/IHyracksRootContext.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/context/IHyracksRootContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/context/IHyracksTaskContext.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/context/IHyracksTaskContext.java
index f0b47b1..0ced6aa 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/context/IHyracksTaskContext.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/context/IHyracksTaskContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/ActivityId.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/ActivityId.java
index 41b4c23..af63632 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/ActivityId.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/ActivityId.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/ConnectorDescriptorId.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/ConnectorDescriptorId.java
index 3133a7f..b363556 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/ConnectorDescriptorId.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/ConnectorDescriptorId.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IActivity.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IActivity.java
index df8fd53..c07f503 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IActivity.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IActivity.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IActivityGraphBuilder.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IActivityGraphBuilder.java
index bbda23c..9efcfb1 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IActivityGraphBuilder.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IActivityGraphBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IConnectorDescriptor.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IConnectorDescriptor.java
index 3a6ee7a..56200e4 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IConnectorDescriptor.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IConnectorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IDataReader.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IDataReader.java
index b5f45cb..aa39bea 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IDataReader.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IDataReader.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IDataWriter.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IDataWriter.java
index 4fb6f18..ae445df 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IDataWriter.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IDataWriter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IOpenableDataReader.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IOpenableDataReader.java
index d0b6474..d8f1d2c 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IOpenableDataReader.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IOpenableDataReader.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IOpenableDataWriter.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IOpenableDataWriter.java
index b2b15c6..15df434 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IOpenableDataWriter.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IOpenableDataWriter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IOperatorDescriptor.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IOperatorDescriptor.java
index 43bf141..feaeb4b 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IOperatorDescriptor.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IOperatorNodePullable.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IOperatorNodePullable.java
index 1fa039f..8053bfc 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IOperatorNodePullable.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IOperatorNodePullable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IOperatorNodePushable.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IOperatorNodePushable.java
index 01a7e03..0e3fefd 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IOperatorNodePushable.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/IOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/OperatorDescriptorId.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/OperatorDescriptorId.java
index 8794e09..0c23465 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/OperatorDescriptorId.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/OperatorDescriptorId.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/OperatorInstanceId.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/OperatorInstanceId.java
index f6ee39b..1dee66d 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/OperatorInstanceId.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/OperatorInstanceId.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/TaskAttemptId.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/TaskAttemptId.java
index 0fb44c1..65fa2e5 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/TaskAttemptId.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/TaskAttemptId.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/TaskId.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/TaskId.java
index 7e0b22d..6d58bd9 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/TaskId.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/TaskId.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/connectors/IConnectorPolicy.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/connectors/IConnectorPolicy.java
index d6d6fee..7501aa9 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/connectors/IConnectorPolicy.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/connectors/IConnectorPolicy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/connectors/IConnectorPolicyAssignmentPolicy.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/connectors/IConnectorPolicyAssignmentPolicy.java
index ca684e4..df6e9ed 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/connectors/IConnectorPolicyAssignmentPolicy.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/connectors/IConnectorPolicyAssignmentPolicy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/connectors/PipeliningConnectorPolicy.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/connectors/PipeliningConnectorPolicy.java
index b55947e..b0594f1 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/connectors/PipeliningConnectorPolicy.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/connectors/PipeliningConnectorPolicy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/connectors/SendSideMaterializedBlockingConnectorPolicy.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/connectors/SendSideMaterializedBlockingConnectorPolicy.java
index a5017de..ba5eab3 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/connectors/SendSideMaterializedBlockingConnectorPolicy.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/connectors/SendSideMaterializedBlockingConnectorPolicy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/connectors/SendSideMaterializedPipeliningConnectorPolicy.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/connectors/SendSideMaterializedPipeliningConnectorPolicy.java
index 5d522c0..860a4bb 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/connectors/SendSideMaterializedPipeliningConnectorPolicy.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/connectors/SendSideMaterializedPipeliningConnectorPolicy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/connectors/SendSideMaterializedReceiveSideMaterializedBlockingConnectorPolicy.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/connectors/SendSideMaterializedReceiveSideMaterializedBlockingConnectorPolicy.java
index 82608c4..893f7f3 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/connectors/SendSideMaterializedReceiveSideMaterializedBlockingConnectorPolicy.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/connectors/SendSideMaterializedReceiveSideMaterializedBlockingConnectorPolicy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/connectors/SendSideMaterializedReceiveSideMaterializedPipeliningConnectorPolicy.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/connectors/SendSideMaterializedReceiveSideMaterializedPipeliningConnectorPolicy.java
index 1cc0583..ca01762 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/connectors/SendSideMaterializedReceiveSideMaterializedPipeliningConnectorPolicy.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/connectors/SendSideMaterializedReceiveSideMaterializedPipeliningConnectorPolicy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/state/IStateObject.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/state/IStateObject.java
index f216773..3e2087c 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/state/IStateObject.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/state/IStateObject.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IBinaryComparator.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IBinaryComparator.java
index 767684d..8e63fff 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IBinaryComparator.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IBinaryComparator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IBinaryComparatorFactory.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IBinaryComparatorFactory.java
index 9976818..5654860 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IBinaryComparatorFactory.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IBinaryComparatorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IBinaryHashFunction.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IBinaryHashFunction.java
index a995703..744e948 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IBinaryHashFunction.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IBinaryHashFunction.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IBinaryHashFunctionFactory.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IBinaryHashFunctionFactory.java
index a064d5f..b583e04 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IBinaryHashFunctionFactory.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IBinaryHashFunctionFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IBinaryHashFunctionFamily.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IBinaryHashFunctionFamily.java
index 5cb27d6..ee48b6b 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IBinaryHashFunctionFamily.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IBinaryHashFunctionFamily.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IComparator.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IComparator.java
index 2d24496..7df2b87 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IComparator.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IComparator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IComparatorFactory.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IComparatorFactory.java
index ef9161f..353719a 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IComparatorFactory.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IComparatorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IHashFunction.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IHashFunction.java
index 9124fca..d6c6e76 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IHashFunction.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IHashFunction.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IHashFunctionFactory.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IHashFunctionFactory.java
index b67a96c..9ef2949 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IHashFunctionFactory.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IHashFunctionFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ILinearizeComparator.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ILinearizeComparator.java
index 51a8cfe..1b0c1db 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ILinearizeComparator.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ILinearizeComparator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ILinearizeComparatorFactory.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ILinearizeComparatorFactory.java
index 79619c4..a06b311 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ILinearizeComparatorFactory.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ILinearizeComparatorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/INormalizedKeyComputer.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/INormalizedKeyComputer.java
index 0a8fdcd..c58975f 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/INormalizedKeyComputer.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/INormalizedKeyComputer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/INormalizedKeyComputerFactory.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/INormalizedKeyComputerFactory.java
index d58632c..8579a67 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/INormalizedKeyComputerFactory.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/INormalizedKeyComputerFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/INullWriter.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/INullWriter.java
index 7552c17..1650e82 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/INullWriter.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/INullWriter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/INullWriterFactory.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/INullWriterFactory.java
index 6d9a744..ee06358 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/INullWriterFactory.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/INullWriterFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IRecordDescriptorProvider.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IRecordDescriptorProvider.java
index c480446..89d970a 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IRecordDescriptorProvider.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IRecordDescriptorProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IResultSerializer.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IResultSerializer.java
index ba2ff9a..6d3ab99 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IResultSerializer.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IResultSerializer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IResultSerializerFactory.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IResultSerializerFactory.java
index 1fbf00f..f4178b8 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IResultSerializerFactory.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/IResultSerializerFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ISerializerDeserializer.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ISerializerDeserializer.java
index 33ba602..2e2e843 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ISerializerDeserializer.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ISerializerDeserializer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ITuplePairComparator.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ITuplePairComparator.java
index 3251944..dd86019 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ITuplePairComparator.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ITuplePairComparator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ITuplePairComparatorFactory.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ITuplePairComparatorFactory.java
index 297b56c..bf3e93c 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ITuplePairComparatorFactory.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ITuplePairComparatorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ITuplePartitionComputer.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ITuplePartitionComputer.java
index baf9d5c..4f64cfd 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ITuplePartitionComputer.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ITuplePartitionComputer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ITuplePartitionComputerFactory.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ITuplePartitionComputerFactory.java
index eb2bbe8..76263a3 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ITuplePartitionComputerFactory.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ITuplePartitionComputerFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ITuplePartitionComputerFamily.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ITuplePartitionComputerFamily.java
index 1839dc1..5348e23 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ITuplePartitionComputerFamily.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ITuplePartitionComputerFamily.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ITypeTraits.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ITypeTraits.java
index 4a6f826..40b1462 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ITypeTraits.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/ITypeTraits.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/JSONSerializable.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/JSONSerializable.java
index 1eca502..1e0b79a 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/JSONSerializable.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/JSONSerializable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/RecordDescriptor.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/RecordDescriptor.java
index b04fe86..37bcafe 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/RecordDescriptor.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataflow/value/RecordDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/DatasetDirectoryRecord.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/DatasetDirectoryRecord.java
index 6316bba..e141d06 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/DatasetDirectoryRecord.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/DatasetDirectoryRecord.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/DatasetJobRecord.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/DatasetJobRecord.java
index 563ee1b..bff23bc 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/DatasetJobRecord.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/DatasetJobRecord.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -17,7 +17,7 @@
 import java.util.HashMap;
 import java.util.List;
 
-public class DatasetJobRecord extends HashMap<ResultSetId, ResultSetMetaData> {
+public class DatasetJobRecord extends HashMap<ResultSetId, ResultSetMetaData> implements IDatasetStateRecord {
     public enum Status {
         RUNNING,
         SUCCESS,
@@ -26,11 +26,14 @@
 
     private static final long serialVersionUID = 1L;
 
+    private final long timestamp;
+
     private Status status;
 
     private List<Exception> exceptions;
 
     public DatasetJobRecord() {
+        this.timestamp = System.currentTimeMillis();
         this.status = Status.RUNNING;
     }
 
@@ -51,6 +54,10 @@
         this.exceptions = exceptions;
     }
 
+    public long getTimestamp() {
+        return timestamp;
+    }
+
     public Status getStatus() {
         return status;
     }
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/IDatasetInputChannelMonitor.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/IDatasetInputChannelMonitor.java
index 65ba1c7..19ce9fe 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/IDatasetInputChannelMonitor.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/IDatasetInputChannelMonitor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/Page.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/IDatasetManager.java
similarity index 61%
copy from hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/Page.java
copy to hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/IDatasetManager.java
index 7275dfd..b6cd1af 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/Page.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/IDatasetManager.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -14,20 +14,12 @@
  */
 package edu.uci.ics.hyracks.api.dataset;
 
-import java.nio.ByteBuffer;
+import java.util.Map;
 
-public class Page {
-    private final ByteBuffer buffer;
+import edu.uci.ics.hyracks.api.job.JobId;
 
-    public Page(ByteBuffer buffer) {
-        this.buffer = buffer;
-    }
+public interface IDatasetManager {
+    public Map<JobId, IDatasetStateRecord> getStateMap();
 
-    public ByteBuffer getBuffer() {
-        return buffer;
-    }
-
-    public ByteBuffer clear() {
-        return (ByteBuffer) buffer.clear();
-    }
+    public void deinitState(JobId jobId);
 }
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/IDatasetPartitionManager.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/IDatasetPartitionManager.java
index dea077d..32910ac 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/IDatasetPartitionManager.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/IDatasetPartitionManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -20,9 +20,9 @@
 import edu.uci.ics.hyracks.api.io.IWorkspaceFileFactory;
 import edu.uci.ics.hyracks.api.job.JobId;
 
-public interface IDatasetPartitionManager {
+public interface IDatasetPartitionManager extends IDatasetManager {
     public IFrameWriter createDatasetPartitionWriter(IHyracksTaskContext ctx, ResultSetId rsId, boolean orderedResult,
-            int partition, int nPartitions) throws HyracksException;
+            boolean asyncMode, int partition, int nPartitions) throws HyracksException;
 
     public void reportPartitionWriteCompletion(JobId jobId, ResultSetId resultSetId, int partition)
             throws HyracksException;
@@ -32,6 +32,8 @@
     public void initializeDatasetPartitionReader(JobId jobId, ResultSetId resultSetId, int partition, IFrameWriter noc)
             throws HyracksException;
 
+    public void removePartition(JobId jobId, ResultSetId resultSetId, int partition);
+
     public void abortReader(JobId jobId);
 
     public IWorkspaceFileFactory getFileFactory();
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/Page.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/IDatasetStateRecord.java
similarity index 61%
copy from hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/Page.java
copy to hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/IDatasetStateRecord.java
index 7275dfd..1a400e3 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/Page.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/IDatasetStateRecord.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -14,20 +14,6 @@
  */
 package edu.uci.ics.hyracks.api.dataset;
 
-import java.nio.ByteBuffer;
-
-public class Page {
-    private final ByteBuffer buffer;
-
-    public Page(ByteBuffer buffer) {
-        this.buffer = buffer;
-    }
-
-    public ByteBuffer getBuffer() {
-        return buffer;
-    }
-
-    public ByteBuffer clear() {
-        return (ByteBuffer) buffer.clear();
-    }
+public interface IDatasetStateRecord {
+    public long getTimestamp();
 }
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/IHyracksDataset.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/IHyracksDataset.java
index 4a7a6b0..bfd108f 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/IHyracksDataset.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/IHyracksDataset.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/IHyracksDatasetDirectoryServiceConnection.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/IHyracksDatasetDirectoryServiceConnection.java
index f29356b..f5de10d 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/IHyracksDatasetDirectoryServiceConnection.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/IHyracksDatasetDirectoryServiceConnection.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/IHyracksDatasetDirectoryServiceInterface.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/IHyracksDatasetDirectoryServiceInterface.java
index 3fe4ada..700e749 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/IHyracksDatasetDirectoryServiceInterface.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/IHyracksDatasetDirectoryServiceInterface.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/IHyracksDatasetReader.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/IHyracksDatasetReader.java
index c397a94..d2c2ee3 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/IHyracksDatasetReader.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/IHyracksDatasetReader.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/ResultSetId.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/ResultSetId.java
index ae38ef3..970cd77 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/ResultSetId.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/ResultSetId.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/ResultSetMetaData.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/ResultSetMetaData.java
index e3ad69a..0bc5211 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/ResultSetMetaData.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/ResultSetMetaData.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/exceptions/HyracksDataException.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/exceptions/HyracksDataException.java
index c6e6cd3..6390abf 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/exceptions/HyracksDataException.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/exceptions/HyracksDataException.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/exceptions/HyracksException.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/exceptions/HyracksException.java
index 43913ce..50e4826 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/exceptions/HyracksException.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/exceptions/HyracksException.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.api.exceptions;
 
 import java.io.IOException;
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/io/FileReference.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/io/FileReference.java
index ffe41d0..4eda148 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/io/FileReference.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/io/FileReference.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/io/IFileHandle.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/io/IFileHandle.java
index 10fcef0..2d43756 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/io/IFileHandle.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/io/IFileHandle.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/io/IIOFuture.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/io/IIOFuture.java
index 45b919f..59a7ba2 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/io/IIOFuture.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/io/IIOFuture.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/io/IIOManager.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/io/IIOManager.java
index 2e7feb5..1fd5a93 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/io/IIOManager.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/io/IIOManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -16,6 +16,7 @@
 
 import java.nio.ByteBuffer;
 import java.util.List;
+import java.util.concurrent.Executor;
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 
@@ -47,4 +48,6 @@
     public void close(IFileHandle fHandle) throws HyracksDataException;
 
     public void sync(IFileHandle fileHandle, boolean metadata) throws HyracksDataException;
+
+    public void setExecutor(Executor executor);
 }
\ No newline at end of file
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/io/IODeviceHandle.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/io/IODeviceHandle.java
index 16ff19c..c70b44c 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/io/IODeviceHandle.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/io/IODeviceHandle.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/io/IWorkspaceFileFactory.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/io/IWorkspaceFileFactory.java
index 7b9a7c4..1622862 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/io/IWorkspaceFileFactory.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/io/IWorkspaceFileFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/ActivityCluster.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/ActivityCluster.java
index 9fb2b08..e7de2ab 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/ActivityCluster.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/ActivityCluster.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/ActivityClusterGraph.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/ActivityClusterGraph.java
index 32c93cd..e80168b 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/ActivityClusterGraph.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/ActivityClusterGraph.java
@@ -1,5 +1,5 @@
 /*
-2 * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/ActivityClusterId.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/ActivityClusterId.java
index cba63959..88c5ff4 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/ActivityClusterId.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/ActivityClusterId.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IActivityClusterGraphGenerator.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IActivityClusterGraphGenerator.java
index b837066..a99933b 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IActivityClusterGraphGenerator.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IActivityClusterGraphGenerator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IActivityClusterGraphGeneratorFactory.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IActivityClusterGraphGeneratorFactory.java
index ae76455..978348b 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IActivityClusterGraphGeneratorFactory.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IActivityClusterGraphGeneratorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IConnectorDescriptorRegistry.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IConnectorDescriptorRegistry.java
index 65b27e3..dfcb208 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IConnectorDescriptorRegistry.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IConnectorDescriptorRegistry.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IGlobalJobDataFactory.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IGlobalJobDataFactory.java
index bee495a..9678a4b 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IGlobalJobDataFactory.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IGlobalJobDataFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IJobLifecycleListener.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IJobLifecycleListener.java
index 2f0f025..0ef7522 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IJobLifecycleListener.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IJobLifecycleListener.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IJobletEventListener.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IJobletEventListener.java
index c83e333..1576396 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IJobletEventListener.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IJobletEventListener.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IJobletEventListenerFactory.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IJobletEventListenerFactory.java
index 3b3cacb..d18eed2 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IJobletEventListenerFactory.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IJobletEventListenerFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IOperatorDescriptorRegistry.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IOperatorDescriptorRegistry.java
index 4ea84d6..cfa06fa 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IOperatorDescriptorRegistry.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IOperatorDescriptorRegistry.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IOperatorEnvironment.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IOperatorEnvironment.java
index eaa1ec2..cfcb688 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IOperatorEnvironment.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/IOperatorEnvironment.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/JobActivityGraph.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/JobActivityGraph.java
index 5b62b5c..b2e9c95 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/JobActivityGraph.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/JobActivityGraph.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/JobFlag.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/JobFlag.java
index 2b9787d..6c15f34 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/JobFlag.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/JobFlag.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/JobId.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/JobId.java
index ffb9bba..b8eb61b 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/JobId.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/JobId.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/JobSpecification.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/JobSpecification.java
index 1fdff0f..0873582 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/JobSpecification.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/JobSpecification.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/JobStatus.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/JobStatus.java
index aa6fb68..5a331bf 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/JobStatus.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/JobStatus.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/profiling/counters/ICounter.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/profiling/counters/ICounter.java
index 1ca0ac7..166f6b8 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/profiling/counters/ICounter.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/profiling/counters/ICounter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/profiling/counters/ICounterContext.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/profiling/counters/ICounterContext.java
index 4be02d7..f065f43 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/profiling/counters/ICounterContext.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/job/profiling/counters/ICounterContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/lifecycle/ILifeCycleComponent.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/lifecycle/ILifeCycleComponent.java
new file mode 100644
index 0000000..2cb757f
--- /dev/null
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/lifecycle/ILifeCycleComponent.java
@@ -0,0 +1,25 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.hyracks.api.lifecycle;
+
+import java.io.IOException;
+import java.io.OutputStream;
+
+public interface ILifeCycleComponent {
+
+    public void start();
+
+    public void stop(boolean dumpState, OutputStream ouputStream) throws IOException;
+}
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/lifecycle/ILifeCycleComponentManager.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/lifecycle/ILifeCycleComponentManager.java
new file mode 100644
index 0000000..6247c17
--- /dev/null
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/lifecycle/ILifeCycleComponentManager.java
@@ -0,0 +1,30 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.hyracks.api.lifecycle;
+
+import java.io.IOException;
+import java.lang.Thread.UncaughtExceptionHandler;
+import java.util.Map;
+
+public interface ILifeCycleComponentManager extends UncaughtExceptionHandler {
+
+    public void register(ILifeCycleComponent component);
+
+    public void startAll();
+
+    public void stopAll(boolean dumpState) throws IOException;
+
+    public void configure(Map<String, String> configuration);
+}
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/lifecycle/LifeCycleComponentManager.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/lifecycle/LifeCycleComponentManager.java
new file mode 100644
index 0000000..ec27653
--- /dev/null
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/lifecycle/LifeCycleComponentManager.java
@@ -0,0 +1,145 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.hyracks.api.lifecycle;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+public class LifeCycleComponentManager implements ILifeCycleComponentManager {
+
+    public final static LifeCycleComponentManager INSTANCE = new LifeCycleComponentManager();
+
+    public static final class Config {
+        public static final String DUMP_PATH_KEY = "DUMP_PATH";
+    }
+
+    private static final Logger LOGGER = Logger.getLogger(LifeCycleComponentManager.class.getName());
+
+    private final List<ILifeCycleComponent> components;
+    private boolean stopInitiated;
+    private String dumpPath;
+    private boolean configured;
+
+    private LifeCycleComponentManager() {
+        components = new ArrayList<ILifeCycleComponent>();
+        stopInitiated = false;
+        configured = false;
+    }
+
+    @Override
+    public void uncaughtException(Thread t, Throwable e) {
+        if (LOGGER.isLoggable(Level.SEVERE)) {
+            LOGGER.severe("Uncaught Exception from thread " + t.getName() + " message: " + e.getMessage());
+            e.printStackTrace();
+        }
+        try {
+            stopAll(true);
+        } catch (IOException e1) {
+            if (LOGGER.isLoggable(Level.SEVERE)) {
+                LOGGER.severe("Exception in stopping Asterix. " + e1.getMessage());
+            }
+        }
+    }
+
+    @Override
+    public synchronized void register(ILifeCycleComponent component) {
+        components.add(component);
+    }
+
+    @Override
+    public void startAll() {
+        for (ILifeCycleComponent component : components) {
+            component.start();
+        }
+    }
+
+    @Override
+    public synchronized void stopAll(boolean dumpState) throws IOException {
+        if (LOGGER.isLoggable(Level.INFO)) {
+            LOGGER.severe("Attempting to stop " + this);
+        }
+        if (stopInitiated) {
+            if (LOGGER.isLoggable(Level.INFO)) {
+                LOGGER.severe("Stop already in progress");
+            }
+            return;
+        }
+        if (!configured) {
+            if (LOGGER.isLoggable(Level.SEVERE)) {
+                LOGGER.severe("Lifecycle management not configured" + this);
+            }
+            return;
+        }
+
+        stopInitiated = true;
+        if (LOGGER.isLoggable(Level.SEVERE)) {
+            LOGGER.severe("Stopping Asterix instance");
+        }
+
+        FileOutputStream componentDumpStream = null;
+        String componentDumpPath = null;
+        for (int index = components.size() - 1; index >= 0; index--) {
+            ILifeCycleComponent component = components.get(index);
+            try {
+                if (dumpState) {
+                    componentDumpPath = dumpPath + File.separator + component.getClass().getName() + "-coredump";
+                    File f = new File(componentDumpPath);
+                    File parentDir = new File(f.getParent());
+                    if (!parentDir.exists()) {
+                        parentDir.mkdirs();
+                    }
+                    componentDumpStream = new FileOutputStream(f);
+                }
+                if (LOGGER.isLoggable(Level.SEVERE)) {
+                    LOGGER.severe("Stopping component instance" + component.getClass().getName() + " dump state "
+                            + dumpState + " dump path " + componentDumpPath);
+                }
+                component.stop(dumpState, componentDumpStream);
+            } catch (Exception e) {
+                if (LOGGER.isLoggable(Level.SEVERE)) {
+                    LOGGER.severe("Exception in stopping component " + component.getClass().getName() + e.getMessage());
+                }
+            } finally {
+                if (componentDumpStream != null) {
+                    componentDumpStream.close();
+                }
+            }
+        }
+        stopInitiated = false;
+
+    }
+
+    @Override
+    public void configure(Map<String, String> configuration) {
+        dumpPath = configuration.get(Config.DUMP_PATH_KEY);
+        if (dumpPath == null) {
+            dumpPath = System.getProperty("user.dir");
+            if (LOGGER.isLoggable(Level.SEVERE)) {
+                LOGGER.severe("dump path not configured. Using current directory " + dumpPath);
+            }
+        }
+        if (LOGGER.isLoggable(Level.INFO)) {
+            LOGGER.severe("LifecycleComponentManager configured " + this);
+        }
+        configured = true;
+    }
+
+}
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/messages/IMessage.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/messages/IMessage.java
index 96ad7fe..e9ddd7e 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/messages/IMessage.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/messages/IMessage.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/messages/IMessageBroker.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/messages/IMessageBroker.java
index 35ae813..7b33eb4 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/messages/IMessageBroker.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/messages/IMessageBroker.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/partitions/IPartition.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/partitions/IPartition.java
index c3dfad0..6c0e979 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/partitions/IPartition.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/partitions/IPartition.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/partitions/PartitionId.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/partitions/PartitionId.java
index be25d12..2ff71d5 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/partitions/PartitionId.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/partitions/PartitionId.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/partitions/ResultSetPartitionId.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/partitions/ResultSetPartitionId.java
index 148a8a2..21f8d98 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/partitions/ResultSetPartitionId.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/partitions/ResultSetPartitionId.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/resources/IDeallocatable.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/resources/IDeallocatable.java
index e5b3ed8..ddba168 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/resources/IDeallocatable.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/resources/IDeallocatable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/resources/IDeallocatableRegistry.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/resources/IDeallocatableRegistry.java
index e130607..97e6024 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/resources/IDeallocatableRegistry.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/resources/IDeallocatableRegistry.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/topology/ClusterTopology.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/topology/ClusterTopology.java
index 6f566d1..7953b12 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/topology/ClusterTopology.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/topology/ClusterTopology.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/topology/NetworkEndpoint.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/topology/NetworkEndpoint.java
index 0aaee2a..5a3e5e6 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/topology/NetworkEndpoint.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/topology/NetworkEndpoint.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/topology/NetworkSwitch.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/topology/NetworkSwitch.java
index 3c89044..1eb4963 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/topology/NetworkSwitch.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/topology/NetworkSwitch.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/topology/NetworkTerminal.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/topology/NetworkTerminal.java
index f36da76..dc180f0 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/topology/NetworkTerminal.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/topology/NetworkTerminal.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/topology/TopologyDefinitionParser.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/topology/TopologyDefinitionParser.java
index 0ca6127..f527ad1 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/topology/TopologyDefinitionParser.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/topology/TopologyDefinitionParser.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/util/JavaSerializationUtils.java b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/util/JavaSerializationUtils.java
index a3c8aed..d7938f0 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/util/JavaSerializationUtils.java
+++ b/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/util/JavaSerializationUtils.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-client/pom.xml b/hyracks/hyracks-client/pom.xml
index 76a2659..099c178 100644
--- a/hyracks/hyracks-client/pom.xml
+++ b/hyracks/hyracks-client/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-client</artifactId>
@@ -5,7 +19,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -25,22 +39,22 @@
  <dependency>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks-api</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
  </dependency>
  <dependency>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks-net</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
  </dependency>
  <dependency>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks-comm</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
  </dependency>
   <dependency>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks-dataflow-common</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
  </dependency>
   </dependencies>
 </project>
diff --git a/hyracks/hyracks-client/src/main/java/edu/uci/ics/hyracks/client/dataset/DatasetClientContext.java b/hyracks/hyracks-client/src/main/java/edu/uci/ics/hyracks/client/dataset/DatasetClientContext.java
index 8be4a8c..aa7008f 100644
--- a/hyracks/hyracks-client/src/main/java/edu/uci/ics/hyracks/client/dataset/DatasetClientContext.java
+++ b/hyracks/hyracks-client/src/main/java/edu/uci/ics/hyracks/client/dataset/DatasetClientContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-client/src/main/java/edu/uci/ics/hyracks/client/dataset/HyracksDataset.java b/hyracks/hyracks-client/src/main/java/edu/uci/ics/hyracks/client/dataset/HyracksDataset.java
index 6866e46..e74f844 100644
--- a/hyracks/hyracks-client/src/main/java/edu/uci/ics/hyracks/client/dataset/HyracksDataset.java
+++ b/hyracks/hyracks-client/src/main/java/edu/uci/ics/hyracks/client/dataset/HyracksDataset.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-client/src/main/java/edu/uci/ics/hyracks/client/dataset/HyracksDatasetDirectoryServiceConnection.java b/hyracks/hyracks-client/src/main/java/edu/uci/ics/hyracks/client/dataset/HyracksDatasetDirectoryServiceConnection.java
index c882448..9ecc9c7 100644
--- a/hyracks/hyracks-client/src/main/java/edu/uci/ics/hyracks/client/dataset/HyracksDatasetDirectoryServiceConnection.java
+++ b/hyracks/hyracks-client/src/main/java/edu/uci/ics/hyracks/client/dataset/HyracksDatasetDirectoryServiceConnection.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-client/src/main/java/edu/uci/ics/hyracks/client/dataset/HyracksDatasetDirectoryServiceInterfaceRemoteProxy.java b/hyracks/hyracks-client/src/main/java/edu/uci/ics/hyracks/client/dataset/HyracksDatasetDirectoryServiceInterfaceRemoteProxy.java
index 9c3b918..68eba22 100644
--- a/hyracks/hyracks-client/src/main/java/edu/uci/ics/hyracks/client/dataset/HyracksDatasetDirectoryServiceInterfaceRemoteProxy.java
+++ b/hyracks/hyracks-client/src/main/java/edu/uci/ics/hyracks/client/dataset/HyracksDatasetDirectoryServiceInterfaceRemoteProxy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-client/src/main/java/edu/uci/ics/hyracks/client/dataset/HyracksDatasetReader.java b/hyracks/hyracks-client/src/main/java/edu/uci/ics/hyracks/client/dataset/HyracksDatasetReader.java
index 97d3744..03432a8 100644
--- a/hyracks/hyracks-client/src/main/java/edu/uci/ics/hyracks/client/dataset/HyracksDatasetReader.java
+++ b/hyracks/hyracks-client/src/main/java/edu/uci/ics/hyracks/client/dataset/HyracksDatasetReader.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-client/src/main/java/edu/uci/ics/hyracks/client/net/ClientNetworkManager.java b/hyracks/hyracks-client/src/main/java/edu/uci/ics/hyracks/client/net/ClientNetworkManager.java
index 7aef8b9..06bef10 100644
--- a/hyracks/hyracks-client/src/main/java/edu/uci/ics/hyracks/client/net/ClientNetworkManager.java
+++ b/hyracks/hyracks-client/src/main/java/edu/uci/ics/hyracks/client/net/ClientNetworkManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-comm/pom.xml b/hyracks/hyracks-comm/pom.xml
index 036e507..6755171 100644
--- a/hyracks/hyracks-comm/pom.xml
+++ b/hyracks/hyracks-comm/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-comm</artifactId>
@@ -5,7 +19,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -25,12 +39,12 @@
  <dependency>
  	<groupId>edu.uci.ics.hyracks</groupId>
  	<artifactId>hyracks-api</artifactId>
- 	<version>0.2.6-SNAPSHOT</version>
+ 	<version>0.2.7-SNAPSHOT</version>
  </dependency>
   <dependency>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks-net</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
  </dependency>
   </dependencies>
 </project>
diff --git a/hyracks/hyracks-comm/src/main/java/edu/uci/ics/hyracks/comm/channels/DatasetNetworkInputChannel.java b/hyracks/hyracks-comm/src/main/java/edu/uci/ics/hyracks/comm/channels/DatasetNetworkInputChannel.java
index 1ab315b..e3ab5f3 100644
--- a/hyracks/hyracks-comm/src/main/java/edu/uci/ics/hyracks/comm/channels/DatasetNetworkInputChannel.java
+++ b/hyracks/hyracks-comm/src/main/java/edu/uci/ics/hyracks/comm/channels/DatasetNetworkInputChannel.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-comm/src/main/java/edu/uci/ics/hyracks/comm/channels/IChannelConnectionFactory.java b/hyracks/hyracks-comm/src/main/java/edu/uci/ics/hyracks/comm/channels/IChannelConnectionFactory.java
index 33179ba..9ee76e3 100644
--- a/hyracks/hyracks-comm/src/main/java/edu/uci/ics/hyracks/comm/channels/IChannelConnectionFactory.java
+++ b/hyracks/hyracks-comm/src/main/java/edu/uci/ics/hyracks/comm/channels/IChannelConnectionFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-comm/src/main/java/edu/uci/ics/hyracks/comm/channels/NetworkInputChannel.java b/hyracks/hyracks-comm/src/main/java/edu/uci/ics/hyracks/comm/channels/NetworkInputChannel.java
index aa37b16..ffb1ace 100644
--- a/hyracks/hyracks-comm/src/main/java/edu/uci/ics/hyracks/comm/channels/NetworkInputChannel.java
+++ b/hyracks/hyracks-comm/src/main/java/edu/uci/ics/hyracks/comm/channels/NetworkInputChannel.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-comm/src/main/java/edu/uci/ics/hyracks/comm/channels/NetworkOutputChannel.java b/hyracks/hyracks-comm/src/main/java/edu/uci/ics/hyracks/comm/channels/NetworkOutputChannel.java
index 812a2de..af1f8f6 100644
--- a/hyracks/hyracks-comm/src/main/java/edu/uci/ics/hyracks/comm/channels/NetworkOutputChannel.java
+++ b/hyracks/hyracks-comm/src/main/java/edu/uci/ics/hyracks/comm/channels/NetworkOutputChannel.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/pom.xml b/hyracks/hyracks-control/hyracks-control-cc/pom.xml
index 7782346..a30fd89 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/pom.xml
+++ b/hyracks/hyracks-control/hyracks-control-cc/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-control-cc</artifactId>
@@ -5,7 +19,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks-control</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -26,7 +40,7 @@
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-control-common</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/CCDriver.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/CCDriver.java
index 4bf3da2..7df3a55 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/CCDriver.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/CCDriver.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -20,19 +20,24 @@
 
 public class CCDriver {
     public static void main(String args[]) throws Exception {
-        CCConfig ccConfig = new CCConfig();
-        CmdLineParser cp = new CmdLineParser(ccConfig);
         try {
-            cp.parseArgument(args);
+            CCConfig ccConfig = new CCConfig();
+            CmdLineParser cp = new CmdLineParser(ccConfig);
+            try {
+                cp.parseArgument(args);
+            } catch (Exception e) {
+                System.err.println(e.getMessage());
+                cp.printUsage(System.err);
+                return;
+            }
+            ClusterControllerService ccService = new ClusterControllerService(ccConfig);
+            ccService.start();
+            while (true) {
+                Thread.sleep(100000);
+            }
         } catch (Exception e) {
-            System.err.println(e.getMessage());
-            cp.printUsage(System.err);
-            return;
-        }
-        ClusterControllerService ccService = new ClusterControllerService(ccConfig);
-        ccService.start();
-        while (true) {
-            Thread.sleep(100000);
+            e.printStackTrace();
+            System.exit(1);
         }
     }
 }
\ No newline at end of file
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/ClusterControllerService.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/ClusterControllerService.java
index 5294428..0463350 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/ClusterControllerService.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/ClusterControllerService.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -40,7 +40,6 @@
 import edu.uci.ics.hyracks.api.context.ICCContext;
 import edu.uci.ics.hyracks.api.dataset.DatasetDirectoryRecord;
 import edu.uci.ics.hyracks.api.dataset.DatasetJobRecord.Status;
-import edu.uci.ics.hyracks.api.dataset.IDatasetDirectoryService;
 import edu.uci.ics.hyracks.api.deployment.DeploymentId;
 import edu.uci.ics.hyracks.api.job.JobId;
 import edu.uci.ics.hyracks.api.job.JobStatus;
@@ -48,6 +47,7 @@
 import edu.uci.ics.hyracks.api.topology.TopologyDefinitionParser;
 import edu.uci.ics.hyracks.control.cc.application.CCApplicationContext;
 import edu.uci.ics.hyracks.control.cc.dataset.DatasetDirectoryService;
+import edu.uci.ics.hyracks.control.cc.dataset.IDatasetDirectoryService;
 import edu.uci.ics.hyracks.control.cc.job.JobRun;
 import edu.uci.ics.hyracks.control.cc.web.WebServer;
 import edu.uci.ics.hyracks.control.cc.work.ApplicationMessageWork;
@@ -122,7 +122,7 @@
 
     private final WorkQueue workQueue;
 
-    private final ExecutorService executor;
+    private ExecutorService executor;
 
     private final Timer timer;
 
@@ -143,7 +143,6 @@
         nodeRegistry = new LinkedHashMap<String, NodeControllerState>();
         ipAddressNodeNameMap = new HashMap<String, Set<String>>();
         serverCtx = new ServerContext(ServerContext.ServerType.CLUSTER_CONTROLLER, new File(ccConfig.ccRoot));
-        executor = Executors.newCachedThreadPool();
         IIPCI ccIPCI = new ClusterControllerIPCI();
         clusterIPC = new IPCSystem(new InetSocketAddress(ccConfig.clusterNetPort), ccIPCI,
                 new CCNCFunctions.SerializerDeserializer());
@@ -189,7 +188,7 @@
             }
         };
         sweeper = new DeadNodeSweeper();
-        datasetDirectoryService = new DatasetDirectoryService(ccConfig.jobHistorySize);
+        datasetDirectoryService = new DatasetDirectoryService(ccConfig.resultTTL, ccConfig.resultSweepThreshold);
         jobCounter = 0;
 
         deploymentRunMap = new HashMap<DeploymentId, DeploymentRun>();
@@ -221,6 +220,8 @@
         timer.schedule(sweeper, 0, ccConfig.heartbeatPeriod);
         jobLog.open();
         startApplication();
+
+        datasetDirectoryService.init(executor);
         LOGGER.log(Level.INFO, "Started ClusterControllerService");
     }
 
@@ -235,6 +236,7 @@
                     .size()]);
             aep.start(appCtx, args);
         }
+        executor = Executors.newCachedThreadPool(appCtx.getThreadFactory());
     }
 
     @Override
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/NodeControllerState.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/NodeControllerState.java
index c96a319..67ba2b6 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/NodeControllerState.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/NodeControllerState.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/adminconsole/HyracksAdminConsoleApplication.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/adminconsole/HyracksAdminConsoleApplication.java
index a6113de..3de8822 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/adminconsole/HyracksAdminConsoleApplication.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/adminconsole/HyracksAdminConsoleApplication.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/adminconsole/pages/AbstractPage.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/adminconsole/pages/AbstractPage.java
index cc51228..ecae1cd 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/adminconsole/pages/AbstractPage.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/adminconsole/pages/AbstractPage.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/adminconsole/pages/IndexPage.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/adminconsole/pages/IndexPage.java
index 3b9be36..e2daff8 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/adminconsole/pages/IndexPage.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/adminconsole/pages/IndexPage.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/adminconsole/pages/JobDetailsPage.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/adminconsole/pages/JobDetailsPage.java
index e165415..1a88589 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/adminconsole/pages/JobDetailsPage.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/adminconsole/pages/JobDetailsPage.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/adminconsole/pages/NodeDetailsPage.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/adminconsole/pages/NodeDetailsPage.java
index 072e8fb..2ae9ee9 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/adminconsole/pages/NodeDetailsPage.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/adminconsole/pages/NodeDetailsPage.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/application/CCApplicationContext.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/application/CCApplicationContext.java
index f884c6b..ce59128 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/application/CCApplicationContext.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/application/CCApplicationContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/dataset/DatasetDirectoryService.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/dataset/DatasetDirectoryService.java
index 36082b0..ee1cc67 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/dataset/DatasetDirectoryService.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/dataset/DatasetDirectoryService.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -18,18 +18,20 @@
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.concurrent.ExecutorService;
 
 import edu.uci.ics.hyracks.api.comm.NetworkAddress;
 import edu.uci.ics.hyracks.api.dataset.DatasetDirectoryRecord;
 import edu.uci.ics.hyracks.api.dataset.DatasetJobRecord;
 import edu.uci.ics.hyracks.api.dataset.DatasetJobRecord.Status;
-import edu.uci.ics.hyracks.api.dataset.IDatasetDirectoryService;
+import edu.uci.ics.hyracks.api.dataset.IDatasetStateRecord;
 import edu.uci.ics.hyracks.api.dataset.ResultSetId;
 import edu.uci.ics.hyracks.api.dataset.ResultSetMetaData;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.api.exceptions.HyracksException;
 import edu.uci.ics.hyracks.api.job.IActivityClusterGraphGeneratorFactory;
 import edu.uci.ics.hyracks.api.job.JobId;
+import edu.uci.ics.hyracks.control.common.dataset.ResultStateSweeper;
 
 /**
  * TODO(madhusudancs): The potential perils of this global dataset directory service implementation is that, the jobs
@@ -39,22 +41,27 @@
  * job.
  */
 public class DatasetDirectoryService implements IDatasetDirectoryService {
-    private final Map<JobId, DatasetJobRecord> jobResultLocations;
+    private final long resultTTL;
 
-    public DatasetDirectoryService(final int jobHistorySize) {
-        jobResultLocations = new LinkedHashMap<JobId, DatasetJobRecord>() {
-            private static final long serialVersionUID = 1L;
+    private final long resultSweepThreshold;
 
-            protected boolean removeEldestEntry(Map.Entry<JobId, DatasetJobRecord> eldest) {
-                return size() > jobHistorySize;
-            }
-        };
+    private final Map<JobId, IDatasetStateRecord> jobResultLocations;
+
+    public DatasetDirectoryService(long resultTTL, long resultSweepThreshold) {
+        this.resultTTL = resultTTL;
+        this.resultSweepThreshold = resultSweepThreshold;
+        jobResultLocations = new LinkedHashMap<JobId, IDatasetStateRecord>();
+    }
+
+    @Override
+    public void init(ExecutorService executor) {
+        executor.execute(new ResultStateSweeper(this, resultTTL, resultSweepThreshold));
     }
 
     @Override
     public synchronized void notifyJobCreation(JobId jobId, IActivityClusterGraphGeneratorFactory acggf)
             throws HyracksException {
-        DatasetJobRecord djr = jobResultLocations.get(jobId);
+        DatasetJobRecord djr = (DatasetJobRecord) jobResultLocations.get(jobId);
         if (djr == null) {
             djr = new DatasetJobRecord();
             jobResultLocations.put(jobId, djr);
@@ -74,7 +81,7 @@
     @Override
     public synchronized void registerResultPartitionLocation(JobId jobId, ResultSetId rsId, boolean orderedResult,
             int partition, int nPartitions, NetworkAddress networkAddress) {
-        DatasetJobRecord djr = jobResultLocations.get(jobId);
+        DatasetJobRecord djr = (DatasetJobRecord) jobResultLocations.get(jobId);
 
         ResultSetMetaData resultSetMetaData = djr.get(rsId);
         if (resultSetMetaData == null) {
@@ -95,7 +102,7 @@
     public synchronized void reportResultPartitionWriteCompletion(JobId jobId, ResultSetId rsId, int partition) {
         int successCount = 0;
 
-        DatasetJobRecord djr = jobResultLocations.get(jobId);
+        DatasetJobRecord djr = (DatasetJobRecord) jobResultLocations.get(jobId);
         ResultSetMetaData resultSetMetaData = djr.get(rsId);
         DatasetDirectoryRecord[] records = resultSetMetaData.getRecords();
         records[partition].writeEOS();
@@ -113,7 +120,7 @@
 
     @Override
     public synchronized void reportResultPartitionFailure(JobId jobId, ResultSetId rsId, int partition) {
-        DatasetJobRecord djr = jobResultLocations.get(jobId);
+        DatasetJobRecord djr = (DatasetJobRecord) jobResultLocations.get(jobId);
         if (djr != null) {
             djr.fail();
         }
@@ -122,7 +129,7 @@
 
     @Override
     public synchronized void reportJobFailure(JobId jobId, List<Exception> exceptions) {
-        DatasetJobRecord djr = jobResultLocations.get(jobId);
+        DatasetJobRecord djr = (DatasetJobRecord) jobResultLocations.get(jobId);
         if (djr != null) {
             djr.fail(exceptions);
         }
@@ -132,7 +139,7 @@
     @Override
     public synchronized Status getResultStatus(JobId jobId, ResultSetId rsId) throws HyracksDataException {
         DatasetJobRecord djr;
-        while ((djr = jobResultLocations.get(jobId)) == null) {
+        while ((djr = (DatasetJobRecord) jobResultLocations.get(jobId)) == null) {
             try {
                 wait();
             } catch (InterruptedException e) {
@@ -144,6 +151,16 @@
     }
 
     @Override
+    public Map<JobId, IDatasetStateRecord> getStateMap() {
+        return jobResultLocations;
+    }
+
+    @Override
+    public void deinitState(JobId jobId) {
+        jobResultLocations.remove(jobResultLocations.get(jobId));
+    }
+
+    @Override
     public synchronized DatasetDirectoryRecord[] getResultPartitionLocations(JobId jobId, ResultSetId rsId,
             DatasetDirectoryRecord[] knownRecords) throws HyracksDataException {
         DatasetDirectoryRecord[] newRecords;
@@ -191,7 +208,7 @@
      */
     private DatasetDirectoryRecord[] updatedRecords(JobId jobId, ResultSetId rsId, DatasetDirectoryRecord[] knownRecords)
             throws HyracksDataException {
-        DatasetJobRecord djr = jobResultLocations.get(jobId);
+        DatasetJobRecord djr = (DatasetJobRecord) jobResultLocations.get(jobId);
 
         if (djr == null) {
             throw new HyracksDataException("Requested JobId " + jobId + " doesn't exist");
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/IDatasetDirectoryService.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/dataset/IDatasetDirectoryService.java
similarity index 80%
rename from hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/IDatasetDirectoryService.java
rename to hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/dataset/IDatasetDirectoryService.java
index d152cf5..3de3c50 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/IDatasetDirectoryService.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/dataset/IDatasetDirectoryService.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -12,17 +12,23 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.hyracks.api.dataset;
+package edu.uci.ics.hyracks.control.cc.dataset;
 
 import java.util.List;
+import java.util.concurrent.ExecutorService;
 
 import edu.uci.ics.hyracks.api.comm.NetworkAddress;
+import edu.uci.ics.hyracks.api.dataset.DatasetDirectoryRecord;
 import edu.uci.ics.hyracks.api.dataset.DatasetJobRecord.Status;
+import edu.uci.ics.hyracks.api.dataset.IDatasetManager;
+import edu.uci.ics.hyracks.api.dataset.ResultSetId;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.api.job.IJobLifecycleListener;
 import edu.uci.ics.hyracks.api.job.JobId;
 
-public interface IDatasetDirectoryService extends IJobLifecycleListener {
+public interface IDatasetDirectoryService extends IJobLifecycleListener, IDatasetManager {
+    public void init(ExecutorService executor);
+
     public void registerResultPartitionLocation(JobId jobId, ResultSetId rsId, boolean orderedResult, int partition,
             int nPartitions, NetworkAddress networkAddress);
 
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/ActivityClusterPlan.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/ActivityClusterPlan.java
index 2b1d3e2..d673fb4 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/ActivityClusterPlan.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/ActivityClusterPlan.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/ActivityPlan.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/ActivityPlan.java
index beeca27..433c60e 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/ActivityPlan.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/ActivityPlan.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/IJobStatusConditionVariable.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/IJobStatusConditionVariable.java
index 57ee9b0..1af9ce6 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/IJobStatusConditionVariable.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/IJobStatusConditionVariable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/JobRun.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/JobRun.java
index 3a6dc26..16f36a6 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/JobRun.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/JobRun.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/Task.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/Task.java
index 84ae6e5..65e22e4 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/Task.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/Task.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/TaskAttempt.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/TaskAttempt.java
index b323501..75640a9 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/TaskAttempt.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/TaskAttempt.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/TaskCluster.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/TaskCluster.java
index 17beb2d..7607ca9 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/TaskCluster.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/TaskCluster.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/TaskClusterAttempt.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/TaskClusterAttempt.java
index 2b74585..3397e72 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/TaskClusterAttempt.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/TaskClusterAttempt.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/TaskClusterId.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/TaskClusterId.java
index 1218c14..028847d 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/TaskClusterId.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/job/TaskClusterId.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/partitions/PartitionMatchMaker.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/partitions/PartitionMatchMaker.java
index 2dcbb3e..a1a3f57 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/partitions/PartitionMatchMaker.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/partitions/PartitionMatchMaker.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/partitions/PartitionUtils.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/partitions/PartitionUtils.java
index c36cf62..4753295 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/partitions/PartitionUtils.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/partitions/PartitionUtils.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.control.cc.partitions;
 
 import org.apache.commons.lang3.tuple.Pair;
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/scheduler/ActivityClusterPlanner.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/scheduler/ActivityClusterPlanner.java
index 8879627..4d2ad6b 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/scheduler/ActivityClusterPlanner.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/scheduler/ActivityClusterPlanner.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/scheduler/ActivityPartitionDetails.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/scheduler/ActivityPartitionDetails.java
index 414b543..7dc821b 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/scheduler/ActivityPartitionDetails.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/scheduler/ActivityPartitionDetails.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/scheduler/JobScheduler.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/scheduler/JobScheduler.java
index d09b641..0b8346b 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/scheduler/JobScheduler.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/scheduler/JobScheduler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/scheduler/PartitionConstraintSolver.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/scheduler/PartitionConstraintSolver.java
index ea10562..a49ac5a 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/scheduler/PartitionConstraintSolver.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/scheduler/PartitionConstraintSolver.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/scheduler/RankedRunnableTaskCluster.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/scheduler/RankedRunnableTaskCluster.java
index 27e9480..b636073 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/scheduler/RankedRunnableTaskCluster.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/scheduler/RankedRunnableTaskCluster.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/scheduler/Runnability.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/scheduler/Runnability.java
index 56ae9c3..4f3de7f 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/scheduler/Runnability.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/scheduler/Runnability.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/web/JobsRESTAPIFunction.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/web/JobsRESTAPIFunction.java
index 98cef8d..ef79449 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/web/JobsRESTAPIFunction.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/web/JobsRESTAPIFunction.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/web/NodesRESTAPIFunction.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/web/NodesRESTAPIFunction.java
index b8742c8..4afe032 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/web/NodesRESTAPIFunction.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/web/NodesRESTAPIFunction.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/web/WebServer.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/web/WebServer.java
index cd7a684..dc59633 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/web/WebServer.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/web/WebServer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/web/util/IJSONOutputFunction.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/web/util/IJSONOutputFunction.java
index f3582fb..ee720eb 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/web/util/IJSONOutputFunction.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/web/util/IJSONOutputFunction.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/web/util/JSONOutputRequestHandler.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/web/util/JSONOutputRequestHandler.java
index 1cc4dcf..e890c23 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/web/util/JSONOutputRequestHandler.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/web/util/JSONOutputRequestHandler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/web/util/JSONUtils.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/web/util/JSONUtils.java
index 137b398..f245ee7 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/web/util/JSONUtils.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/web/util/JSONUtils.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/web/util/RoutingHandler.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/web/util/RoutingHandler.java
index 21b5143..ba9a721 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/web/util/RoutingHandler.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/web/util/RoutingHandler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/AbstractTaskLifecycleWork.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/AbstractTaskLifecycleWork.java
index 8a552f5..58aaa57 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/AbstractTaskLifecycleWork.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/AbstractTaskLifecycleWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/ApplicationMessageWork.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/ApplicationMessageWork.java
index 50b3e30..bc58d1e 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/ApplicationMessageWork.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/ApplicationMessageWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetActivityClusterGraphJSONWork.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetActivityClusterGraphJSONWork.java
index 1f79763..9b8e92b 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetActivityClusterGraphJSONWork.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetActivityClusterGraphJSONWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetDatasetDirectoryServiceInfoWork.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetDatasetDirectoryServiceInfoWork.java
index 3ac6acc..6cef133 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetDatasetDirectoryServiceInfoWork.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetDatasetDirectoryServiceInfoWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetIpAddressNodeNameMapWork.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetIpAddressNodeNameMapWork.java
index 1f29903..e194338 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetIpAddressNodeNameMapWork.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetIpAddressNodeNameMapWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetJobRunJSONWork.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetJobRunJSONWork.java
index 07c8f87..f271f63 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetJobRunJSONWork.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetJobRunJSONWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetJobStatusWork.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetJobStatusWork.java
index c70e24f..bcd0fc2 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetJobStatusWork.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetJobStatusWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetJobSummariesJSONWork.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetJobSummariesJSONWork.java
index 20035a4..040fde8 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetJobSummariesJSONWork.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetJobSummariesJSONWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetNodeControllersInfoWork.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetNodeControllersInfoWork.java
index a787b9f..f89be0a 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetNodeControllersInfoWork.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetNodeControllersInfoWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetNodeDetailsJSONWork.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetNodeDetailsJSONWork.java
index 4a1f108..819f9dc 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetNodeDetailsJSONWork.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetNodeDetailsJSONWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetNodeSummariesJSONWork.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetNodeSummariesJSONWork.java
index 6ac4ac2..9840f6c 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetNodeSummariesJSONWork.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetNodeSummariesJSONWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetResultPartitionLocationsWork.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetResultPartitionLocationsWork.java
index fd1d418..fd6b690 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetResultPartitionLocationsWork.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetResultPartitionLocationsWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -15,11 +15,11 @@
 package edu.uci.ics.hyracks.control.cc.work;
 
 import edu.uci.ics.hyracks.api.dataset.DatasetDirectoryRecord;
-import edu.uci.ics.hyracks.api.dataset.IDatasetDirectoryService;
 import edu.uci.ics.hyracks.api.dataset.ResultSetId;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.api.job.JobId;
 import edu.uci.ics.hyracks.control.cc.ClusterControllerService;
+import edu.uci.ics.hyracks.control.cc.dataset.IDatasetDirectoryService;
 import edu.uci.ics.hyracks.control.common.work.IResultCallback;
 import edu.uci.ics.hyracks.control.common.work.SynchronizableWork;
 
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetResultStatusWork.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetResultStatusWork.java
index 1bd0674..7aca3ff 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetResultStatusWork.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/GetResultStatusWork.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/JobCleanupWork.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/JobCleanupWork.java
index ab218cc..3b29b52 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/JobCleanupWork.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/JobCleanupWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/JobStartWork.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/JobStartWork.java
index 0e739ba..9f8f91f 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/JobStartWork.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/JobStartWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/JobletCleanupNotificationWork.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/JobletCleanupNotificationWork.java
index 63e62a0..5eb851a 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/JobletCleanupNotificationWork.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/JobletCleanupNotificationWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/NodeHeartbeatWork.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/NodeHeartbeatWork.java
index 6b139a5..970a45d 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/NodeHeartbeatWork.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/NodeHeartbeatWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/RegisterNodeWork.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/RegisterNodeWork.java
index 03d43ed..acaf324 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/RegisterNodeWork.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/RegisterNodeWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/RegisterPartitionAvailibilityWork.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/RegisterPartitionAvailibilityWork.java
index 2a844ad..92a0f5a 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/RegisterPartitionAvailibilityWork.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/RegisterPartitionAvailibilityWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/RegisterPartitionRequestWork.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/RegisterPartitionRequestWork.java
index a71875f..3aa7e41 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/RegisterPartitionRequestWork.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/RegisterPartitionRequestWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/RegisterResultPartitionLocationWork.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/RegisterResultPartitionLocationWork.java
index f86e924..564d1d3 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/RegisterResultPartitionLocationWork.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/RegisterResultPartitionLocationWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/RemoveDeadNodesWork.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/RemoveDeadNodesWork.java
index c82e264..a0b14f6 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/RemoveDeadNodesWork.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/RemoveDeadNodesWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/ReportProfilesWork.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/ReportProfilesWork.java
index b8eba7e..cc37449 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/ReportProfilesWork.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/ReportProfilesWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/ReportResultPartitionFailureWork.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/ReportResultPartitionFailureWork.java
index 4aea41e..5adb12d 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/ReportResultPartitionFailureWork.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/ReportResultPartitionFailureWork.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/ReportResultPartitionWriteCompletionWork.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/ReportResultPartitionWriteCompletionWork.java
index 313b730..5ea171e 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/ReportResultPartitionWriteCompletionWork.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/ReportResultPartitionWriteCompletionWork.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/TaskCompleteWork.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/TaskCompleteWork.java
index fee0832..8e5050c 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/TaskCompleteWork.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/TaskCompleteWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/TaskFailureWork.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/TaskFailureWork.java
index 6a04487..e00025d 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/TaskFailureWork.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/TaskFailureWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/UnregisterNodeWork.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/UnregisterNodeWork.java
index 32ddba9..3f9906a 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/UnregisterNodeWork.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/UnregisterNodeWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/WaitForJobCompletionWork.java b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/WaitForJobCompletionWork.java
index 8efea17..d212de4 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/WaitForJobCompletionWork.java
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/java/edu/uci/ics/hyracks/control/cc/work/WaitForJobCompletionWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/resources/edu/uci/ics/hyracks/control/cc/adminconsole/pages/AbstractPage.html b/hyracks/hyracks-control/hyracks-control-cc/src/main/resources/edu/uci/ics/hyracks/control/cc/adminconsole/pages/AbstractPage.html
index 93cf631..0964a4d 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/resources/edu/uci/ics/hyracks/control/cc/adminconsole/pages/AbstractPage.html
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/resources/edu/uci/ics/hyracks/control/cc/adminconsole/pages/AbstractPage.html
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <html>
 <head>
     <script type="text/javascript" src="/static/javascript/jquery/jquery.min.js"></script>
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/resources/edu/uci/ics/hyracks/control/cc/adminconsole/pages/IndexPage.html b/hyracks/hyracks-control/hyracks-control-cc/src/main/resources/edu/uci/ics/hyracks/control/cc/adminconsole/pages/IndexPage.html
index 3f8719e..5810f23 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/resources/edu/uci/ics/hyracks/control/cc/adminconsole/pages/IndexPage.html
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/resources/edu/uci/ics/hyracks/control/cc/adminconsole/pages/IndexPage.html
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <wicket:extend xmlns:wicket>
     <div>
         Registered Node Count: <span wicket:id="node-count"></span>
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/resources/edu/uci/ics/hyracks/control/cc/adminconsole/pages/JobDetailsPage.html b/hyracks/hyracks-control/hyracks-control-cc/src/main/resources/edu/uci/ics/hyracks/control/cc/adminconsole/pages/JobDetailsPage.html
index df3350d..145848e 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/resources/edu/uci/ics/hyracks/control/cc/adminconsole/pages/JobDetailsPage.html
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/resources/edu/uci/ics/hyracks/control/cc/adminconsole/pages/JobDetailsPage.html
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <wicket:extend xmlns:wicket>
     <div id="job-specification" wicket:id="job-specification" style="display: none;">
     </div>
diff --git a/hyracks/hyracks-control/hyracks-control-cc/src/main/resources/edu/uci/ics/hyracks/control/cc/adminconsole/pages/NodeDetailsPage.html b/hyracks/hyracks-control/hyracks-control-cc/src/main/resources/edu/uci/ics/hyracks/control/cc/adminconsole/pages/NodeDetailsPage.html
index 1d8f735..757c19d 100644
--- a/hyracks/hyracks-control/hyracks-control-cc/src/main/resources/edu/uci/ics/hyracks/control/cc/adminconsole/pages/NodeDetailsPage.html
+++ b/hyracks/hyracks-control/hyracks-control-cc/src/main/resources/edu/uci/ics/hyracks/control/cc/adminconsole/pages/NodeDetailsPage.html
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <wicket:extend xmlns:wicket>
     <div id="tabs">
         <ul>
diff --git a/hyracks/hyracks-control/hyracks-control-common/pom.xml b/hyracks/hyracks-control/hyracks-control-common/pom.xml
index 15e2840..0056e99 100644
--- a/hyracks/hyracks-control/hyracks-control-common/pom.xml
+++ b/hyracks/hyracks-control/hyracks-control-common/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-control-common</artifactId>
@@ -6,7 +20,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks-control</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -27,7 +41,7 @@
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-api</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/AbstractRemoteService.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/AbstractRemoteService.java
index 21e3e9d..21fdae5 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/AbstractRemoteService.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/AbstractRemoteService.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/application/ApplicationContext.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/application/ApplicationContext.java
index 58ae79e..2ca7ccf 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/application/ApplicationContext.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/application/ApplicationContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -16,6 +16,7 @@
 
 import java.io.IOException;
 import java.io.Serializable;
+import java.util.concurrent.ThreadFactory;
 
 import edu.uci.ics.hyracks.api.application.IApplicationContext;
 import edu.uci.ics.hyracks.api.job.IJobSerializerDeserializerContainer;
@@ -28,6 +29,11 @@
     protected Serializable distributedState;
     protected IMessageBroker messageBroker;
     protected IJobSerializerDeserializerContainer jobSerDeContainer = new JobSerializerDeserializerContainer();
+    protected ThreadFactory threadFactory = new ThreadFactory() {
+        public Thread newThread(Runnable r) {
+            return new Thread(r);
+        }
+    };
 
     public ApplicationContext(ServerContext serverCtx) throws IOException {
         this.serverCtx = serverCtx;
@@ -52,4 +58,14 @@
     public IJobSerializerDeserializerContainer getJobSerializerDeserializerContainer() {
         return this.jobSerDeContainer;
     }
+
+    @Override
+    public ThreadFactory getThreadFactory() {
+        return threadFactory;
+    }
+
+    @Override
+    public void setThreadFactory(ThreadFactory threadFactory) {
+        this.threadFactory = threadFactory;
+    }
 }
\ No newline at end of file
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/application/ApplicationStatus.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/application/ApplicationStatus.java
index b45c4f1..a414a48 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/application/ApplicationStatus.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/application/ApplicationStatus.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/base/IClusterController.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/base/IClusterController.java
index 9954dc3..ec96f2b 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/base/IClusterController.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/base/IClusterController.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/base/INodeController.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/base/INodeController.java
index cf27740..464e2b2 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/base/INodeController.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/base/INodeController.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/context/ServerContext.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/context/ServerContext.java
index 7eca794..a121b81 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/context/ServerContext.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/context/ServerContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/controllers/CCConfig.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/controllers/CCConfig.java
index 7647410..c7244fb 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/controllers/CCConfig.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/controllers/CCConfig.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -52,6 +52,12 @@
     @Option(name = "-job-history-size", usage = "Limits the number of historical jobs remembered by the system to the specified value. (default: 10)")
     public int jobHistorySize = 10;
 
+    @Option(name = "-result-time-to-live", usage = "Limits the amount of time results for asynchronous jobs should be retained by the system in milliseconds. (default: 24 hours)")
+    public long resultTTL = 86400000;
+
+    @Option(name = "-result-sweep-threshold", usage = "The duration within which an instance of the result cleanup should be invoked in milliseconds. (default: 1 minute)")
+    public long resultSweepThreshold = 60000;
+
     @Option(name = "-cc-root", usage = "Sets the root folder used for file operations. (default: ClusterControllerService)")
     public String ccRoot = "ClusterControllerService";
 
@@ -86,6 +92,10 @@
         cList.add(String.valueOf(defaultMaxJobAttempts));
         cList.add("-job-history-size");
         cList.add(String.valueOf(jobHistorySize));
+        cList.add("-result-time-to-live");
+        cList.add(String.valueOf(resultTTL));
+        cList.add("-result-sweep-threshold");
+        cList.add(String.valueOf(resultSweepThreshold));
         cList.add("-cc-root");
         cList.add(ccRoot);
         if (clusterTopologyDefinition != null) {
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/controllers/NCConfig.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/controllers/NCConfig.java
index 633d4fb..43129f5 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/controllers/NCConfig.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/controllers/NCConfig.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -23,100 +23,104 @@
 import org.kohsuke.args4j.spi.StopOptionHandler;
 
 public class NCConfig implements Serializable {
-	private static final long serialVersionUID = 1L;
+    private static final long serialVersionUID = 1L;
 
-	@Option(name = "-cc-host", usage = "Cluster Controller host name", required = true)
-	public String ccHost;
+    @Option(name = "-cc-host", usage = "Cluster Controller host name", required = true)
+    public String ccHost;
 
-	@Option(name = "-cc-port", usage = "Cluster Controller port (default: 1099)")
-	public int ccPort = 1099;
+    @Option(name = "-cc-port", usage = "Cluster Controller port (default: 1099)")
+    public int ccPort = 1099;
 
-	@Option(name = "-cluster-net-ip-address", usage = "IP Address to bind cluster listener", required = true)
-	public String clusterNetIPAddress;
+    @Option(name = "-cluster-net-ip-address", usage = "IP Address to bind cluster listener", required = true)
+    public String clusterNetIPAddress;
 
-	@Option(name = "-node-id", usage = "Logical name of node controller unique within the cluster", required = true)
-	public String nodeId;
+    @Option(name = "-node-id", usage = "Logical name of node controller unique within the cluster", required = true)
+    public String nodeId;
 
-	@Option(name = "-data-ip-address", usage = "IP Address to bind data listener", required = true)
-	public String dataIPAddress;
+    @Option(name = "-data-ip-address", usage = "IP Address to bind data listener", required = true)
+    public String dataIPAddress;
 
-	@Option(name = "-result-ip-address", usage = "IP Address to bind dataset result distribution listener", required = true)
-	public String datasetIPAddress;
+    @Option(name = "-result-ip-address", usage = "IP Address to bind dataset result distribution listener", required = true)
+    public String datasetIPAddress;
 
-	@Option(name = "-iodevices", usage = "Comma separated list of IO Device mount points (default: One device in default temp folder)", required = false)
-	public String ioDevices = System.getProperty("java.io.tmpdir");
+    @Option(name = "-iodevices", usage = "Comma separated list of IO Device mount points (default: One device in default temp folder)", required = false)
+    public String ioDevices = System.getProperty("java.io.tmpdir");
 
-	@Option(name = "-net-thread-count", usage = "Number of threads to use for Network I/O (default: 1)")
-	public int nNetThreads = 1;
+    @Option(name = "-net-thread-count", usage = "Number of threads to use for Network I/O (default: 1)")
+    public int nNetThreads = 1;
 
-	@Option(name = "-max-memory", usage = "Maximum memory usable at this Node Controller in bytes (default: -1 auto)")
-	public int maxMemory = -1;
+    @Option(name = "-max-memory", usage = "Maximum memory usable at this Node Controller in bytes (default: -1 auto)")
+    public int maxMemory = -1;
 
-	@Option(name = "-result-history-size", usage = "Limits the number of jobs whose results should be remembered by the system to the specified value. (default: 10)")
-	public int resultHistorySize = 100;
+    @Option(name = "-result-time-to-live", usage = "Limits the amount of time results for asynchronous jobs should be retained by the system in milliseconds. (default: 24 hours)")
+    public long resultTTL = 86400000;
 
-	@Option(name = "-result-manager-memory", usage = "Memory usable for result caching at this Node Controller in bytes (default: -1 auto)")
-	public int resultManagerMemory = -1;
+    @Option(name = "-result-sweep-threshold", usage = "The duration within which an instance of the result cleanup should be invoked in milliseconds. (default: 1 minute)")
+    public long resultSweepThreshold = 60000;
 
-	@Option(name = "-app-nc-main-class", usage = "Application NC Main Class")
-	public String appNCMainClass;
+    @Option(name = "-result-manager-memory", usage = "Memory usable for result caching at this Node Controller in bytes (default: -1 auto)")
+    public int resultManagerMemory = -1;
 
-	@Argument
-	@Option(name = "--", handler = StopOptionHandler.class)
-	public List<String> appArgs;
+    @Option(name = "-app-nc-main-class", usage = "Application NC Main Class")
+    public String appNCMainClass;
 
-	public void toCommandLine(List<String> cList) {
-		cList.add("-cc-host");
-		cList.add(ccHost);
-		cList.add("-cc-port");
-		cList.add(String.valueOf(ccPort));
-		cList.add("-cluster-net-ip-address");
-		cList.add(clusterNetIPAddress);
-		cList.add("-node-id");
-		cList.add(nodeId);
-		cList.add("-data-ip-address");
-		cList.add(dataIPAddress);
-		cList.add(datasetIPAddress);
-		cList.add("-iodevices");
-		cList.add(ioDevices);
-		cList.add("-net-thread-count");
-		cList.add(String.valueOf(nNetThreads));
-		cList.add("-max-memory");
-		cList.add(String.valueOf(maxMemory));
-		cList.add("-result-history-size");
-		cList.add(String.valueOf(resultHistorySize));
-		cList.add("-result-manager-memory");
-		cList.add(String.valueOf(resultManagerMemory));
+    @Argument
+    @Option(name = "--", handler = StopOptionHandler.class)
+    public List<String> appArgs;
 
-		if (appNCMainClass != null) {
-			cList.add("-app-nc-main-class");
-			cList.add(appNCMainClass);
-		}
-		if (appArgs != null && !appArgs.isEmpty()) {
-			cList.add("--");
-			for (String appArg : appArgs) {
-				cList.add(appArg);
-			}
-		}
-	}
+    public void toCommandLine(List<String> cList) {
+        cList.add("-cc-host");
+        cList.add(ccHost);
+        cList.add("-cc-port");
+        cList.add(String.valueOf(ccPort));
+        cList.add("-cluster-net-ip-address");
+        cList.add(clusterNetIPAddress);
+        cList.add("-node-id");
+        cList.add(nodeId);
+        cList.add("-data-ip-address");
+        cList.add(dataIPAddress);
+        cList.add(datasetIPAddress);
+        cList.add("-iodevices");
+        cList.add(ioDevices);
+        cList.add("-net-thread-count");
+        cList.add(String.valueOf(nNetThreads));
+        cList.add("-max-memory");
+        cList.add(String.valueOf(maxMemory));
+        cList.add("-result-time-to-live");
+        cList.add(String.valueOf(resultTTL));
+        cList.add("-result-sweep-threshold");
+        cList.add(String.valueOf(resultSweepThreshold));
+        cList.add("-result-manager-memory");
+        cList.add(String.valueOf(resultManagerMemory));
 
-	public void toMap(Map<String, String> configuration) {
-		configuration.put("cc-host", ccHost);
-		configuration.put("cc-port", (String.valueOf(ccPort)));
-		configuration.put("cluster-net-ip-address", clusterNetIPAddress);
-		configuration.put("node-id", nodeId);
-		configuration.put("data-ip-address", dataIPAddress);
-		configuration.put("iodevices", ioDevices);
-		configuration.put("net-thread-count", String.valueOf(nNetThreads));
-		configuration.put("max-memory", String.valueOf(maxMemory));
-		configuration.put("result-history-size",
-				String.valueOf(resultHistorySize));
-		configuration.put("result-manager-memory",
-				String.valueOf(resultManagerMemory));
+        if (appNCMainClass != null) {
+            cList.add("-app-nc-main-class");
+            cList.add(appNCMainClass);
+        }
+        if (appArgs != null && !appArgs.isEmpty()) {
+            cList.add("--");
+            for (String appArg : appArgs) {
+                cList.add(appArg);
+            }
+        }
+    }
 
-		if (appNCMainClass != null) {
-			configuration.put("app-nc-main-class", appNCMainClass);
-		}
+    public void toMap(Map<String, String> configuration) {
+        configuration.put("cc-host", ccHost);
+        configuration.put("cc-port", (String.valueOf(ccPort)));
+        configuration.put("cluster-net-ip-address", clusterNetIPAddress);
+        configuration.put("node-id", nodeId);
+        configuration.put("data-ip-address", dataIPAddress);
+        configuration.put("iodevices", ioDevices);
+        configuration.put("net-thread-count", String.valueOf(nNetThreads));
+        configuration.put("max-memory", String.valueOf(maxMemory));
+        configuration.put("result-time-to-live", String.valueOf(resultTTL));
+        configuration.put("result-sweep-threshold", String.valueOf(resultSweepThreshold));
+        configuration.put("result-manager-memory", String.valueOf(resultManagerMemory));
 
-	}
+        if (appNCMainClass != null) {
+            configuration.put("app-nc-main-class", appNCMainClass);
+        }
+
+    }
 }
\ No newline at end of file
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/controllers/NodeParameters.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/controllers/NodeParameters.java
index 41e0b8d..1af4a45 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/controllers/NodeParameters.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/controllers/NodeParameters.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/controllers/NodeRegistration.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/controllers/NodeRegistration.java
index a897602..5342b69 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/controllers/NodeRegistration.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/controllers/NodeRegistration.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/dataset/ResultStateSweeper.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/dataset/ResultStateSweeper.java
new file mode 100644
index 0000000..69b560c
--- /dev/null
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/dataset/ResultStateSweeper.java
@@ -0,0 +1,79 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.hyracks.control.common.dataset;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import edu.uci.ics.hyracks.api.dataset.IDatasetManager;
+import edu.uci.ics.hyracks.api.dataset.IDatasetStateRecord;
+import edu.uci.ics.hyracks.api.job.JobId;
+
+/**
+ * Sweeper to clean up the stale result distribution files and result states.
+ */
+public class ResultStateSweeper implements Runnable {
+    private static final Logger LOGGER = Logger.getLogger(ResultStateSweeper.class.getName());
+
+    private final IDatasetManager datasetManager;
+
+    private final long resultTTL;
+
+    private final long resultSweepThreshold;
+
+    private final List<JobId> toBeCollected;
+
+    public ResultStateSweeper(IDatasetManager datasetManager, long resultTTL, long resultSweepThreshold) {
+        this.datasetManager = datasetManager;
+        this.resultTTL = resultTTL;
+        this.resultSweepThreshold = resultSweepThreshold;
+        toBeCollected = new ArrayList<JobId>();
+    }
+
+    @Override
+    public void run() {
+        while (true) {
+            try {
+                Thread.sleep(resultSweepThreshold);
+                sweep();
+            } catch (InterruptedException e) {
+                LOGGER.severe("Result cleaner thread interrupted, but we continue running it.");
+                // There isn't much we can do really here
+            }
+        }
+
+    }
+
+    private void sweep() {
+        synchronized (datasetManager) {
+            toBeCollected.clear();
+            for (Map.Entry<JobId, IDatasetStateRecord> entry : datasetManager.getStateMap().entrySet()) {
+                if (System.currentTimeMillis() > entry.getValue().getTimestamp() + resultTTL) {
+                    toBeCollected.add(entry.getKey());
+                }
+            }
+            for (JobId jobId : toBeCollected) {
+                datasetManager.deinitState(jobId);
+            }
+        }
+        if (LOGGER.isLoggable(Level.INFO)) {
+            LOGGER.info("Result state cleanup instance successfully completed.");
+        }
+    }
+}
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/heartbeat/HeartbeatData.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/heartbeat/HeartbeatData.java
index 663c68a..e46449b 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/heartbeat/HeartbeatData.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/heartbeat/HeartbeatData.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/heartbeat/HeartbeatSchema.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/heartbeat/HeartbeatSchema.java
index e53e9a8..b40cfe6 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/heartbeat/HeartbeatSchema.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/heartbeat/HeartbeatSchema.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/ipc/CCNCFunctions.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/ipc/CCNCFunctions.java
index a6382de..e5d8e5f 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/ipc/CCNCFunctions.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/ipc/CCNCFunctions.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/ipc/ClusterControllerRemoteProxy.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/ipc/ClusterControllerRemoteProxy.java
index fec35ac..0a16087 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/ipc/ClusterControllerRemoteProxy.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/ipc/ClusterControllerRemoteProxy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/ipc/NodeControllerRemoteProxy.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/ipc/NodeControllerRemoteProxy.java
index 8346ecb..e078a91 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/ipc/NodeControllerRemoteProxy.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/ipc/NodeControllerRemoteProxy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/PartitionDescriptor.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/PartitionDescriptor.java
index 9fc0916..b18c082 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/PartitionDescriptor.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/PartitionDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/PartitionRequest.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/PartitionRequest.java
index ca34501..43a3e6e 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/PartitionRequest.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/PartitionRequest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/PartitionState.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/PartitionState.java
index edde0b8..e3672a7 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/PartitionState.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/PartitionState.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/TaskAttemptDescriptor.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/TaskAttemptDescriptor.java
index f6d1f78..6018132 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/TaskAttemptDescriptor.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/TaskAttemptDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/profiling/counters/Counter.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/profiling/counters/Counter.java
index 8529814..83a0a15 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/profiling/counters/Counter.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/profiling/counters/Counter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/profiling/counters/MultiResolutionEventProfiler.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/profiling/counters/MultiResolutionEventProfiler.java
index f8fba7a..2080718 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/profiling/counters/MultiResolutionEventProfiler.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/profiling/counters/MultiResolutionEventProfiler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/profiling/om/AbstractProfile.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/profiling/om/AbstractProfile.java
index b4e3619..2cb4191 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/profiling/om/AbstractProfile.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/profiling/om/AbstractProfile.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/profiling/om/JobProfile.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/profiling/om/JobProfile.java
index 46a964a..a941187 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/profiling/om/JobProfile.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/profiling/om/JobProfile.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.control.common.job.profiling.om;
 
 import java.util.HashMap;
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/profiling/om/JobletProfile.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/profiling/om/JobletProfile.java
index 0c60006..16d08d7 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/profiling/om/JobletProfile.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/profiling/om/JobletProfile.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/profiling/om/PartitionProfile.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/profiling/om/PartitionProfile.java
index ef61796..a9cc979 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/profiling/om/PartitionProfile.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/profiling/om/PartitionProfile.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/profiling/om/TaskProfile.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/profiling/om/TaskProfile.java
index 0f82844..6918af4 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/profiling/om/TaskProfile.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/job/profiling/om/TaskProfile.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/logs/LogFile.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/logs/LogFile.java
index 1521aa0..d43070e 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/logs/LogFile.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/logs/LogFile.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/service/AbstractService.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/service/AbstractService.java
index 4f9cb92..9201b72 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/service/AbstractService.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/service/AbstractService.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/service/IService.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/service/IService.java
index 4e81066..30ffb94 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/service/IService.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/service/IService.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/work/AbstractWork.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/work/AbstractWork.java
index 4ead100..adffba1 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/work/AbstractWork.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/work/AbstractWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/work/FutureValue.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/work/FutureValue.java
index 7eb4ff6..5096989 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/work/FutureValue.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/work/FutureValue.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/work/IPCResponder.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/work/IPCResponder.java
index dcea864..c4dc2bb 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/work/IPCResponder.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/work/IPCResponder.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.control.common.work;
 
 import edu.uci.ics.hyracks.ipc.api.IIPCHandle;
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/work/IResultCallback.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/work/IResultCallback.java
index 80c3d76..ac9b0e5 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/work/IResultCallback.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/work/IResultCallback.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/work/SynchronizableWork.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/work/SynchronizableWork.java
index e94086f..c0e4e80 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/work/SynchronizableWork.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/work/SynchronizableWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/work/WorkQueue.java b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/work/WorkQueue.java
index 26e5412..f12c981 100644
--- a/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/work/WorkQueue.java
+++ b/hyracks/hyracks-control/hyracks-control-common/src/main/java/edu/uci/ics/hyracks/control/common/work/WorkQueue.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-nc/pom.xml b/hyracks/hyracks-control/hyracks-control-nc/pom.xml
index f554523..af384d4 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/pom.xml
+++ b/hyracks/hyracks-control/hyracks-control-nc/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-control-nc</artifactId>
@@ -5,7 +19,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks-control</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -26,19 +40,19 @@
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-control-common</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-net</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-comm</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   	</dependency>
   </dependencies>
   <reporting>
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/Joblet.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/Joblet.java
index 3f6c7b7..56b6654 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/Joblet.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/Joblet.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/NCDriver.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/NCDriver.java
index d31d09e..fce7180 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/NCDriver.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/NCDriver.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -14,36 +14,51 @@
  */
 package edu.uci.ics.hyracks.control.nc;
 
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
 import org.kohsuke.args4j.CmdLineParser;
 
+import edu.uci.ics.hyracks.api.lifecycle.LifeCycleComponentManager;
 import edu.uci.ics.hyracks.control.common.controllers.NCConfig;
 
 public class NCDriver {
-    public static void main(String args[]) throws Exception {
-        NCConfig ncConfig = new NCConfig();
-        CmdLineParser cp = new CmdLineParser(ncConfig);
-        try {
-            cp.parseArgument(args);
-        } catch (Exception e) {
-            System.err.println(e.getMessage());
-            cp.printUsage(System.err);
-            return;
-        }
+    private static final Logger LOGGER = Logger.getLogger(NCDriver.class.getName());
 
-        final NodeControllerService nService = new NodeControllerService(ncConfig);
-        nService.start();
-        Runtime.getRuntime().addShutdownHook(new Thread() {
-            @Override
-            public void run() {
-                try {
-                    nService.stop();
-                } catch (Exception e) {
-                    e.printStackTrace();
-                }
+    public static void main(String args[]) throws Exception {
+        try {
+            NCConfig ncConfig = new NCConfig();
+            CmdLineParser cp = new CmdLineParser(ncConfig);
+            try {
+                cp.parseArgument(args);
+            } catch (Exception e) {
+                System.err.println(e.getMessage());
+                cp.printUsage(System.err);
+                return;
             }
-        });
-        while (true) {
-            Thread.sleep(10000);
+
+            final NodeControllerService nService = new NodeControllerService(ncConfig);
+            if (LOGGER.isLoggable(Level.INFO)) {
+                LOGGER.severe("Setting uncaught exception handler " + LifeCycleComponentManager.INSTANCE);
+            }
+            Thread.currentThread().setUncaughtExceptionHandler(LifeCycleComponentManager.INSTANCE);
+            nService.start();
+            Runtime.getRuntime().addShutdownHook(new Thread() {
+                @Override
+                public void run() {
+                    try {
+                        nService.stop();
+                    } catch (Exception e) {
+                        e.printStackTrace();
+                    }
+                }
+            });
+            while (true) {
+                Thread.sleep(10000);
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+            System.exit(1);
         }
     }
 }
\ No newline at end of file
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/NodeControllerService.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/NodeControllerService.java
index 839aaac..6049a3b 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/NodeControllerService.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/NodeControllerService.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -102,9 +102,9 @@
 
     private final NetworkManager netManager;
 
-    private final IDatasetPartitionManager datasetPartitionManager;
+    private IDatasetPartitionManager datasetPartitionManager;
 
-    private final DatasetNetworkManager datasetNetworkManager;
+    private DatasetNetworkManager datasetNetworkManager;
 
     private final WorkQueue queue;
 
@@ -118,7 +118,7 @@
 
     private final Map<JobId, Joblet> jobletMap;
 
-    private final ExecutorService executor;
+    private ExecutorService executor;
 
     private NodeParameters nodeParameters;
 
@@ -147,22 +147,17 @@
     public NodeControllerService(NCConfig ncConfig) throws Exception {
         this.ncConfig = ncConfig;
         id = ncConfig.nodeId;
-        executor = Executors.newCachedThreadPool();
         NodeControllerIPCI ipci = new NodeControllerIPCI();
         ipc = new IPCSystem(new InetSocketAddress(ncConfig.clusterNetIPAddress, 0), ipci,
                 new CCNCFunctions.SerializerDeserializer());
-        this.ctx = new RootHyracksContext(this, new IOManager(getDevices(ncConfig.ioDevices), executor));
+
+        this.ctx = new RootHyracksContext(this, new IOManager(getDevices(ncConfig.ioDevices)));
         if (id == null) {
             throw new Exception("id not set");
         }
         partitionManager = new PartitionManager(this);
         netManager = new NetworkManager(getIpAddress(ncConfig.dataIPAddress), partitionManager, ncConfig.nNetThreads);
 
-        datasetPartitionManager = new DatasetPartitionManager(this, executor, ncConfig.resultManagerMemory,
-                ncConfig.resultHistorySize);
-        datasetNetworkManager = new DatasetNetworkManager(getIpAddress(ncConfig.datasetIPAddress),
-                datasetPartitionManager, ncConfig.nNetThreads);
-
         queue = new WorkQueue();
         jobletMap = new Hashtable<JobId, Joblet>();
         timer = new Timer(true);
@@ -225,6 +220,14 @@
         fv.setValue(ncInfos);
     }
 
+    private void init() throws Exception {
+        ctx.getIOManager().setExecutor(executor);
+        datasetPartitionManager = new DatasetPartitionManager(this, executor, ncConfig.resultManagerMemory,
+                ncConfig.resultTTL, ncConfig.resultSweepThreshold);
+        datasetNetworkManager = new DatasetNetworkManager(getIpAddress(ncConfig.datasetIPAddress),
+                datasetPartitionManager, ncConfig.nNetThreads);
+    }
+
     @Override
     public void start() throws Exception {
         LOGGER.log(Level.INFO, "Starting NodeControllerService");
@@ -232,6 +235,7 @@
         netManager.start();
 
         startApplication();
+        init();
 
         datasetNetworkManager.start();
         IIPCHandle ccIPCHandle = ipc.getHandle(new InetSocketAddress(ncConfig.ccHost, ncConfig.ccPort));
@@ -286,6 +290,7 @@
                     .toArray(new String[ncConfig.appArgs.size()]);
             ncAppEntryPoint.start(appCtx, args);
         }
+        executor = Executors.newCachedThreadPool(appCtx.getThreadFactory());
     }
 
     @Override
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/Task.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/Task.java
index 1db483f..53e5a01 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/Task.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/Task.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/application/NCApplicationContext.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/application/NCApplicationContext.java
index db68db8..4b8eb53 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/application/NCApplicationContext.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/application/NCApplicationContext.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.control.nc.application;
 
 import java.io.IOException;
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/dataset/DatasetMemoryManager.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/dataset/DatasetMemoryManager.java
index 4e27f12..d9f7302 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/dataset/DatasetMemoryManager.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/dataset/DatasetMemoryManager.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -21,7 +21,6 @@
 import java.util.Map;
 import java.util.Set;
 
-import edu.uci.ics.hyracks.api.dataset.Page;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.api.partitions.ResultSetPartitionId;
 
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/dataset/DatasetPartitionManager.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/dataset/DatasetPartitionManager.java
index 2ec7acc..325e2bc 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/dataset/DatasetPartitionManager.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/dataset/DatasetPartitionManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -17,16 +17,19 @@
 import java.util.HashMap;
 import java.util.LinkedHashMap;
 import java.util.Map;
+import java.util.Map.Entry;
 import java.util.concurrent.Executor;
 import java.util.logging.Logger;
 
 import edu.uci.ics.hyracks.api.comm.IFrameWriter;
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 import edu.uci.ics.hyracks.api.dataset.IDatasetPartitionManager;
+import edu.uci.ics.hyracks.api.dataset.IDatasetStateRecord;
 import edu.uci.ics.hyracks.api.dataset.ResultSetId;
 import edu.uci.ics.hyracks.api.exceptions.HyracksException;
 import edu.uci.ics.hyracks.api.io.IWorkspaceFileFactory;
 import edu.uci.ics.hyracks.api.job.JobId;
+import edu.uci.ics.hyracks.control.common.dataset.ResultStateSweeper;
 import edu.uci.ics.hyracks.control.nc.NodeControllerService;
 import edu.uci.ics.hyracks.control.nc.io.IOManager;
 import edu.uci.ics.hyracks.control.nc.io.WorkspaceFileFactory;
@@ -39,7 +42,7 @@
 
     private final Executor executor;
 
-    private final Map<JobId, Map<ResultSetId, ResultState[]>> partitionResultStateMap;
+    private final Map<JobId, IDatasetStateRecord> partitionResultStateMap;
 
     private final DefaultDeallocatableRegistry deallocatableRegistry;
 
@@ -47,8 +50,8 @@
 
     private final DatasetMemoryManager datasetMemoryManager;
 
-    public DatasetPartitionManager(NodeControllerService ncs, Executor executor, int availableMemory,
-            final int resultHistorySize) {
+    public DatasetPartitionManager(NodeControllerService ncs, Executor executor, int availableMemory, long resultTTL,
+            long resultSweepThreshold) {
         this.ncs = ncs;
         this.executor = executor;
         deallocatableRegistry = new DefaultDeallocatableRegistry();
@@ -58,47 +61,25 @@
         } else {
             datasetMemoryManager = null;
         }
-        partitionResultStateMap = new LinkedHashMap<JobId, Map<ResultSetId, ResultState[]>>() {
-            private static final long serialVersionUID = 1L;
-
-            protected boolean removeEldestEntry(Map.Entry<JobId, Map<ResultSetId, ResultState[]>> eldest) {
-                synchronized (DatasetPartitionManager.this) {
-                    if (size() > resultHistorySize) {
-                        Map<ResultSetId, ResultState[]> rsIdMap = partitionResultStateMap.get(eldest.getValue());
-                        for (ResultSetId rsId : rsIdMap.keySet()) {
-                            ResultState[] resultStates = rsIdMap.get(rsId);
-                            if (resultStates != null) {
-                                for (int i = 0; i < resultStates.length; i++) {
-                                    ResultState state = resultStates[i];
-                                    if (state != null) {
-                                        state.closeAndDelete();
-                                        LOGGER.fine("Removing partition: " + i + " for JobId: " + eldest.getKey());
-                                    }
-                                }
-                            }
-                        }
-                        return true;
-                    }
-                    return false;
-                }
-            }
-        };
+        partitionResultStateMap = new LinkedHashMap<JobId, IDatasetStateRecord>();
+        executor.execute(new ResultStateSweeper(this, resultTTL, resultSweepThreshold));
     }
 
     @Override
     public IFrameWriter createDatasetPartitionWriter(IHyracksTaskContext ctx, ResultSetId rsId, boolean orderedResult,
-            int partition, int nPartitions) throws HyracksException {
+            boolean asyncMode, int partition, int nPartitions) throws HyracksException {
         DatasetPartitionWriter dpw = null;
         JobId jobId = ctx.getJobletContext().getJobId();
         try {
             synchronized (this) {
                 ncs.getClusterController().registerResultPartitionLocation(jobId, rsId, orderedResult, partition,
                         nPartitions, ncs.getDatasetNetworkManager().getNetworkAddress());
-                dpw = new DatasetPartitionWriter(ctx, this, jobId, rsId, partition, datasetMemoryManager, fileFactory);
+                dpw = new DatasetPartitionWriter(ctx, this, jobId, rsId, asyncMode, partition, datasetMemoryManager,
+                        fileFactory);
 
-                Map<ResultSetId, ResultState[]> rsIdMap = partitionResultStateMap.get(jobId);
+                ResultSetMap rsIdMap = (ResultSetMap) partitionResultStateMap.get(jobId);
                 if (rsIdMap == null) {
-                    rsIdMap = new HashMap<ResultSetId, ResultState[]>();
+                    rsIdMap = new ResultSetMap();
                     partitionResultStateMap.put(jobId, rsIdMap);
                 }
 
@@ -144,7 +125,7 @@
             IFrameWriter writer) throws HyracksException {
         ResultState resultState;
         synchronized (this) {
-            Map<ResultSetId, ResultState[]> rsIdMap = partitionResultStateMap.get(jobId);
+            ResultSetMap rsIdMap = (ResultSetMap) partitionResultStateMap.get(jobId);
 
             if (rsIdMap == null) {
                 throw new HyracksException("Unknown JobId " + jobId);
@@ -161,15 +142,44 @@
             }
         }
 
-        DatasetPartitionReader dpr = new DatasetPartitionReader(datasetMemoryManager, executor, resultState);
+        DatasetPartitionReader dpr = new DatasetPartitionReader(this, datasetMemoryManager, executor, resultState);
         dpr.writeTo(writer);
         LOGGER.fine("Initialized partition reader: JobId: " + jobId + ":ResultSetId: " + resultSetId + ":partition: "
                 + partition);
     }
 
     @Override
+    public synchronized void removePartition(JobId jobId, ResultSetId resultSetId, int partition) {
+        ResultSetMap rsIdMap = (ResultSetMap) partitionResultStateMap.get(jobId);
+        if (rsIdMap != null) {
+            ResultState[] resultStates = rsIdMap.get(resultSetId);
+            if (resultStates != null) {
+                ResultState state = resultStates[partition];
+                if (state != null) {
+                    state.closeAndDelete();
+                    LOGGER.fine("Removing partition: " + partition + " for JobId: " + jobId);
+                }
+                resultStates[partition] = null;
+                boolean stateEmpty = true;
+                for (int i = 0; i < resultStates.length; i++) {
+                    if (resultStates[i] != null) {
+                        stateEmpty = false;
+                        break;
+                    }
+                }
+                if (stateEmpty) {
+                    rsIdMap.remove(resultSetId);
+                }
+            }
+            if (rsIdMap.isEmpty()) {
+                partitionResultStateMap.remove(jobId);
+            }
+        }
+    }
+
+    @Override
     public synchronized void abortReader(JobId jobId) {
-        Map<ResultSetId, ResultState[]> rsIdMap = partitionResultStateMap.get(jobId);
+        ResultSetMap rsIdMap = (ResultSetMap) partitionResultStateMap.get(jobId);
 
         if (rsIdMap == null) {
             return;
@@ -193,7 +203,54 @@
     }
 
     @Override
-    public void close() {
+    public synchronized void close() {
+        for (Entry<JobId, IDatasetStateRecord> entry : partitionResultStateMap.entrySet()) {
+            deinit(entry.getKey());
+        }
         deallocatableRegistry.close();
     }
+
+    @Override
+    public Map<JobId, IDatasetStateRecord> getStateMap() {
+        return partitionResultStateMap;
+    }
+
+    @Override
+    public void deinitState(JobId jobId) {
+        deinit(jobId);
+        partitionResultStateMap.remove(jobId);
+    }
+
+    private void deinit(JobId jobId) {
+        ResultSetMap rsIdMap = (ResultSetMap) partitionResultStateMap.get(jobId);
+        if (rsIdMap != null) {
+            for (ResultSetId rsId : rsIdMap.keySet()) {
+                ResultState[] resultStates = rsIdMap.get(rsId);
+                if (resultStates != null) {
+                    for (int i = 0; i < resultStates.length; i++) {
+                        ResultState state = resultStates[i];
+                        if (state != null) {
+                            state.closeAndDelete();
+                            LOGGER.fine("Removing partition: " + i + " for JobId: " + jobId);
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    private class ResultSetMap extends HashMap<ResultSetId, ResultState[]> implements IDatasetStateRecord {
+        private static final long serialVersionUID = 1L;
+
+        long timestamp;
+
+        public ResultSetMap() {
+            super();
+            timestamp = System.currentTimeMillis();
+        }
+
+        public long getTimestamp() {
+            return timestamp;
+        }
+    }
 }
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/dataset/DatasetPartitionReader.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/dataset/DatasetPartitionReader.java
index 07624de..6d6fc83 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/dataset/DatasetPartitionReader.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/dataset/DatasetPartitionReader.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -26,13 +26,17 @@
 public class DatasetPartitionReader {
     private static final Logger LOGGER = Logger.getLogger(DatasetPartitionReader.class.getName());
 
+    private final DatasetPartitionManager datasetPartitionManager;
+
     private final DatasetMemoryManager datasetMemoryManager;
 
     private final Executor executor;
 
     private final ResultState resultState;
 
-    public DatasetPartitionReader(DatasetMemoryManager datasetMemoryManager, Executor executor, ResultState resultState) {
+    public DatasetPartitionReader(DatasetPartitionManager datasetPartitionManager,
+            DatasetMemoryManager datasetMemoryManager, Executor executor, ResultState resultState) {
+        this.datasetPartitionManager = datasetPartitionManager;
         this.datasetMemoryManager = datasetMemoryManager;
         this.executor = executor;
         this.resultState = resultState;
@@ -66,6 +70,12 @@
                     } finally {
                         channel.close();
                         resultState.readClose();
+                        // If the query is a synchronous query, remove its partition as soon as it is read.
+                        if (!resultState.getAsyncMode()) {
+                            datasetPartitionManager.removePartition(resultState.getResultSetPartitionId().getJobId(),
+                                    resultState.getResultSetPartitionId().getResultSetId(), resultState
+                                            .getResultSetPartitionId().getPartition());
+                        }
                     }
                 } catch (HyracksDataException e) {
                     throw new RuntimeException(e);
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/dataset/DatasetPartitionWriter.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/dataset/DatasetPartitionWriter.java
index 8f4b639..d61da67 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/dataset/DatasetPartitionWriter.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/dataset/DatasetPartitionWriter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -37,6 +37,8 @@
 
     private final ResultSetId resultSetId;
 
+    private final boolean asyncMode;
+
     private final int partition;
 
     private final DatasetMemoryManager datasetMemoryManager;
@@ -46,16 +48,18 @@
     private final ResultState resultState;
 
     public DatasetPartitionWriter(IHyracksTaskContext ctx, IDatasetPartitionManager manager, JobId jobId,
-            ResultSetId rsId, int partition, DatasetMemoryManager datasetMemoryManager,
+            ResultSetId rsId, boolean asyncMode, int partition, DatasetMemoryManager datasetMemoryManager,
             IWorkspaceFileFactory fileFactory) {
         this.manager = manager;
         this.jobId = jobId;
         this.resultSetId = rsId;
+        this.asyncMode = asyncMode;
         this.partition = partition;
         this.datasetMemoryManager = datasetMemoryManager;
 
         resultSetPartitionId = new ResultSetPartitionId(jobId, rsId, partition);
-        resultState = new ResultState(resultSetPartitionId, ctx.getIOManager(), fileFactory, ctx.getFrameSize());
+        resultState = new ResultState(resultSetPartitionId, asyncMode, ctx.getIOManager(), fileFactory,
+                ctx.getFrameSize());
     }
 
     public ResultState getResultState() {
diff --git a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/Page.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/dataset/Page.java
similarity index 87%
rename from hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/Page.java
rename to hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/dataset/Page.java
index 7275dfd..4387e2b 100644
--- a/hyracks/hyracks-api/src/main/java/edu/uci/ics/hyracks/api/dataset/Page.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/dataset/Page.java
@@ -1,18 +1,18 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.hyracks.api.dataset;
+package edu.uci.ics.hyracks.control.nc.dataset;
 
 import java.nio.ByteBuffer;
 
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/dataset/ResultState.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/dataset/ResultState.java
index 911f372..c24034d 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/dataset/ResultState.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/dataset/ResultState.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -23,7 +23,6 @@
 import java.util.concurrent.atomic.AtomicBoolean;
 
 import edu.uci.ics.hyracks.api.dataflow.state.IStateObject;
-import edu.uci.ics.hyracks.api.dataset.Page;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.api.io.FileReference;
 import edu.uci.ics.hyracks.api.io.IFileHandle;
@@ -37,6 +36,8 @@
 
     private final ResultSetPartitionId resultSetPartitionId;
 
+    private final boolean asyncMode;
+
     private final int frameSize;
 
     private final IIOManager ioManager;
@@ -59,9 +60,10 @@
 
     private long persistentSize;
 
-    ResultState(ResultSetPartitionId resultSetPartitionId, IIOManager ioManager, IWorkspaceFileFactory fileFactory,
-            int frameSize) {
+    ResultState(ResultSetPartitionId resultSetPartitionId, boolean asyncMode, IIOManager ioManager,
+            IWorkspaceFileFactory fileFactory, int frameSize) {
         this.resultSetPartitionId = resultSetPartitionId;
+        this.asyncMode = asyncMode;
         this.ioManager = ioManager;
         this.fileFactory = fileFactory;
         this.frameSize = frameSize;
@@ -251,6 +253,10 @@
         return ioManager;
     }
 
+    public boolean getAsyncMode() {
+        return asyncMode;
+    }
+
     @Override
     public JobId getJobId() {
         return resultSetPartitionId.getJobId();
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/io/FileHandle.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/io/FileHandle.java
index 8916fb1..5f28649 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/io/FileHandle.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/io/FileHandle.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/io/IOManager.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/io/IOManager.java
index 3b13f32..239b6aa 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/io/IOManager.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/io/IOManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -33,15 +33,19 @@
 public class IOManager implements IIOManager {
     private final List<IODeviceHandle> ioDevices;
 
-    private final Executor executor;
+    private Executor executor;
 
     private final List<IODeviceHandle> workAreaIODevices;
 
     private int workAreaDeviceIndex;
 
     public IOManager(List<IODeviceHandle> devices, Executor executor) throws HyracksException {
-        this.ioDevices = Collections.unmodifiableList(devices);
+        this(devices);
         this.executor = executor;
+    }
+
+    public IOManager(List<IODeviceHandle> devices) throws HyracksException {
+        this.ioDevices = Collections.unmodifiableList(devices);
         workAreaIODevices = new ArrayList<IODeviceHandle>();
         for (IODeviceHandle d : ioDevices) {
             if (d.getWorkAreaPath() != null) {
@@ -55,6 +59,10 @@
         workAreaDeviceIndex = 0;
     }
 
+    public void setExecutor(Executor executor) {
+        this.executor = executor;
+    }
+
     @Override
     public List<IODeviceHandle> getIODevices() {
         return ioDevices;
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/io/WorkspaceFileFactory.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/io/WorkspaceFileFactory.java
index 16421ab..2c9ac97 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/io/WorkspaceFileFactory.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/io/WorkspaceFileFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/net/DatasetNetworkManager.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/net/DatasetNetworkManager.java
index 84baf49..130c967 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/net/DatasetNetworkManager.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/net/DatasetNetworkManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/net/NetworkManager.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/net/NetworkManager.java
index c8e4e94..4d9cd22 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/net/NetworkManager.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/net/NetworkManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/partitions/MaterializedPartition.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/partitions/MaterializedPartition.java
index ae4fd2b..433c45a 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/partitions/MaterializedPartition.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/partitions/MaterializedPartition.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/partitions/MaterializedPartitionInputChannel.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/partitions/MaterializedPartitionInputChannel.java
index ba6e6c3..816e345 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/partitions/MaterializedPartitionInputChannel.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/partitions/MaterializedPartitionInputChannel.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/partitions/MaterializedPartitionWriter.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/partitions/MaterializedPartitionWriter.java
index 7bd0eb1..0e9005a 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/partitions/MaterializedPartitionWriter.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/partitions/MaterializedPartitionWriter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/partitions/MaterializingPipelinedPartition.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/partitions/MaterializingPipelinedPartition.java
index 62320c5..15db1fe 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/partitions/MaterializingPipelinedPartition.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/partitions/MaterializingPipelinedPartition.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/partitions/PartitionManager.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/partitions/PartitionManager.java
index ea88a75..ea966c7 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/partitions/PartitionManager.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/partitions/PartitionManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/partitions/PipelinedPartition.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/partitions/PipelinedPartition.java
index e427cf3..76345bc 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/partitions/PipelinedPartition.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/partitions/PipelinedPartition.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/partitions/ReceiveSideMaterializingCollector.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/partitions/ReceiveSideMaterializingCollector.java
index b1e58fc..6564091 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/partitions/ReceiveSideMaterializingCollector.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/partitions/ReceiveSideMaterializingCollector.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/profiling/ConnectorReceiverProfilingFrameReader.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/profiling/ConnectorReceiverProfilingFrameReader.java
index 96fcf75..e7102e1 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/profiling/ConnectorReceiverProfilingFrameReader.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/profiling/ConnectorReceiverProfilingFrameReader.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/profiling/ConnectorSenderProfilingFrameWriter.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/profiling/ConnectorSenderProfilingFrameWriter.java
index be7b319..620a454 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/profiling/ConnectorSenderProfilingFrameWriter.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/profiling/ConnectorSenderProfilingFrameWriter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/profiling/ProfilingPartitionWriterFactory.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/profiling/ProfilingPartitionWriterFactory.java
index affa01c..5509555 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/profiling/ProfilingPartitionWriterFactory.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/profiling/ProfilingPartitionWriterFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/resources/DefaultDeallocatableRegistry.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/resources/DefaultDeallocatableRegistry.java
index 863ab7b..a719873 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/resources/DefaultDeallocatableRegistry.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/resources/DefaultDeallocatableRegistry.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/runtime/RootHyracksContext.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/runtime/RootHyracksContext.java
index 4651149..889f329 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/runtime/RootHyracksContext.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/runtime/RootHyracksContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/work/AbortTasksWork.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/work/AbortTasksWork.java
index 54ac99a..9d3ccbc 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/work/AbortTasksWork.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/work/AbortTasksWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/work/ApplicationMessageWork.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/work/ApplicationMessageWork.java
index 19a5a81..41069d8 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/work/ApplicationMessageWork.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/work/ApplicationMessageWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/work/BuildJobProfilesWork.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/work/BuildJobProfilesWork.java
index 574bc6d..a2fa5fe 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/work/BuildJobProfilesWork.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/work/BuildJobProfilesWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/work/CleanupJobletWork.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/work/CleanupJobletWork.java
index 173ab92..283662c 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/work/CleanupJobletWork.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/work/CleanupJobletWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/work/NotifyTaskCompleteWork.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/work/NotifyTaskCompleteWork.java
index 022c92f..bef2781 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/work/NotifyTaskCompleteWork.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/work/NotifyTaskCompleteWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/work/NotifyTaskFailureWork.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/work/NotifyTaskFailureWork.java
index d96872d..c4784ff 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/work/NotifyTaskFailureWork.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/work/NotifyTaskFailureWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/work/ReportPartitionAvailabilityWork.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/work/ReportPartitionAvailabilityWork.java
index 7ed9d11..f70d325 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/work/ReportPartitionAvailabilityWork.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/work/ReportPartitionAvailabilityWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/work/StartTasksWork.java b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/work/StartTasksWork.java
index 2c6d38e..b9ee504 100644
--- a/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/work/StartTasksWork.java
+++ b/hyracks/hyracks-control/hyracks-control-nc/src/main/java/edu/uci/ics/hyracks/control/nc/work/StartTasksWork.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-control/pom.xml b/hyracks/hyracks-control/pom.xml
index 9141bf5..a98ffe5 100644
--- a/hyracks/hyracks-control/pom.xml
+++ b/hyracks/hyracks-control/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-control</artifactId>
@@ -7,7 +21,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <modules>
diff --git a/hyracks/hyracks-data/hyracks-data-std/pom.xml b/hyracks/hyracks-data/hyracks-data-std/pom.xml
index b71548a..90d0229 100644
--- a/hyracks/hyracks-data/hyracks-data-std/pom.xml
+++ b/hyracks/hyracks-data/hyracks-data-std/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-data-std</artifactId>
@@ -6,7 +20,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks-data</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -27,7 +41,7 @@
   <dependency>
   	<groupId>edu.uci.ics.hyracks</groupId>
   	<artifactId>hyracks-api</artifactId>
-  	<version>0.2.6-SNAPSHOT</version>
+  	<version>0.2.7-SNAPSHOT</version>
   </dependency>
   </dependencies>
 </project>
diff --git a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/accessors/MurmurHash3BinaryHashFunctionFamily.java b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/accessors/MurmurHash3BinaryHashFunctionFamily.java
index 588ad00..8512287 100644
--- a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/accessors/MurmurHash3BinaryHashFunctionFamily.java
+++ b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/accessors/MurmurHash3BinaryHashFunctionFamily.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.data.std.accessors;
 
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunction;
diff --git a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/accessors/PointableBinaryComparatorFactory.java b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/accessors/PointableBinaryComparatorFactory.java
index bab393e..473b4f5 100644
--- a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/accessors/PointableBinaryComparatorFactory.java
+++ b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/accessors/PointableBinaryComparatorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/accessors/PointableBinaryHashFunctionFactory.java b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/accessors/PointableBinaryHashFunctionFactory.java
index fddbe3d..ff9567f 100644
--- a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/accessors/PointableBinaryHashFunctionFactory.java
+++ b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/accessors/PointableBinaryHashFunctionFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/accessors/UTF8StringBinaryHashFunctionFamily.java b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/accessors/UTF8StringBinaryHashFunctionFamily.java
index 8fd0116..23bba4c 100644
--- a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/accessors/UTF8StringBinaryHashFunctionFamily.java
+++ b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/accessors/UTF8StringBinaryHashFunctionFamily.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/algorithms/BinarySearchAlgorithm.java b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/algorithms/BinarySearchAlgorithm.java
index e631428..519a0cf 100644
--- a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/algorithms/BinarySearchAlgorithm.java
+++ b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/algorithms/BinarySearchAlgorithm.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/AbstractPointable.java b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/AbstractPointable.java
index 3ee6b0e..0e23f04 100644
--- a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/AbstractPointable.java
+++ b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/AbstractPointable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/IComparable.java b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/IComparable.java
index d68f356..a2ec323 100644
--- a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/IComparable.java
+++ b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/IComparable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/IDataOutputProvider.java b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/IDataOutputProvider.java
index d64a23a..e1ddb77 100644
--- a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/IDataOutputProvider.java
+++ b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/IDataOutputProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/IHashable.java b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/IHashable.java
index 3385298..296d5b4 100644
--- a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/IHashable.java
+++ b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/IHashable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/IMutableValueStorage.java b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/IMutableValueStorage.java
index 173a4e6..31328c7 100644
--- a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/IMutableValueStorage.java
+++ b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/IMutableValueStorage.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.data.std.api;
 
 public interface IMutableValueStorage extends IValueReference, IDataOutputProvider {
diff --git a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/INumeric.java b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/INumeric.java
index 72fc221..52fd688 100644
--- a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/INumeric.java
+++ b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/INumeric.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/IPointable.java b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/IPointable.java
index d3accba..4aece67 100644
--- a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/IPointable.java
+++ b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/IPointable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/IPointableFactory.java b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/IPointableFactory.java
index 41895a1..274e61a 100644
--- a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/IPointableFactory.java
+++ b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/IPointableFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/IValueReference.java b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/IValueReference.java
index ebe8e1f..af8a7fc 100644
--- a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/IValueReference.java
+++ b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/api/IValueReference.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/collections/api/IValueReferenceVector.java b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/collections/api/IValueReferenceVector.java
index 090f9d4..ee220bb 100644
--- a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/collections/api/IValueReferenceVector.java
+++ b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/collections/api/IValueReferenceVector.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/BooleanPointable.java b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/BooleanPointable.java
index 7a10a01..49b1377 100644
--- a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/BooleanPointable.java
+++ b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/BooleanPointable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/BytePointable.java b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/BytePointable.java
index a157d7e..0d1a45c 100644
--- a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/BytePointable.java
+++ b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/BytePointable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/DoublePointable.java b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/DoublePointable.java
index 543031d..7dae13b 100644
--- a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/DoublePointable.java
+++ b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/DoublePointable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/FloatPointable.java b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/FloatPointable.java
index c751f8b..7edcb2e 100644
--- a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/FloatPointable.java
+++ b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/FloatPointable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/IntegerPointable.java b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/IntegerPointable.java
index f18ae09..469ae0c 100644
--- a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/IntegerPointable.java
+++ b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/IntegerPointable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/LongPointable.java b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/LongPointable.java
index 89f9868..8137b7e 100644
--- a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/LongPointable.java
+++ b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/LongPointable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/RawUTF8StringPointable.java b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/RawUTF8StringPointable.java
index c90ce5a..3ffaee4 100644
--- a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/RawUTF8StringPointable.java
+++ b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/RawUTF8StringPointable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/ShortPointable.java b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/ShortPointable.java
index c9022ab..2537504 100644
--- a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/ShortPointable.java
+++ b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/ShortPointable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/UTF8StringPointable.java b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/UTF8StringPointable.java
index 866ebb0..38873b0 100644
--- a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/UTF8StringPointable.java
+++ b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/UTF8StringPointable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/UTF8StringWriter.java b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/UTF8StringWriter.java
index 4eb489f..a35b475 100644
--- a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/UTF8StringWriter.java
+++ b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/UTF8StringWriter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/VoidPointable.java b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/VoidPointable.java
index 4faf606..f720b65 100644
--- a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/VoidPointable.java
+++ b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/primitive/VoidPointable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/util/ArrayBackedValueStorage.java b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/util/ArrayBackedValueStorage.java
index 7d7d2c1..a60b2e5 100644
--- a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/util/ArrayBackedValueStorage.java
+++ b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/util/ArrayBackedValueStorage.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.data.std.util;
 
 import java.io.DataOutput;
diff --git a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/util/ByteArrayAccessibleOutputStream.java b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/util/ByteArrayAccessibleOutputStream.java
index c0ba163..1b26c00 100644
--- a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/util/ByteArrayAccessibleOutputStream.java
+++ b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/util/ByteArrayAccessibleOutputStream.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/util/GrowableArray.java b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/util/GrowableArray.java
index c174d4e..5f36708 100644
--- a/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/util/GrowableArray.java
+++ b/hyracks/hyracks-data/hyracks-data-std/src/main/java/edu/uci/ics/hyracks/data/std/util/GrowableArray.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-data/pom.xml b/hyracks/hyracks-data/pom.xml
index 0df5325..32dd51d 100644
--- a/hyracks/hyracks-data/pom.xml
+++ b/hyracks/hyracks-data/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-data</artifactId>
@@ -7,7 +21,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <modules>
diff --git a/hyracks/hyracks-dataflow-common/pom.xml b/hyracks/hyracks-dataflow-common/pom.xml
index a87336d..6e270bf 100644
--- a/hyracks/hyracks-dataflow-common/pom.xml
+++ b/hyracks/hyracks-dataflow-common/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-dataflow-common</artifactId>
@@ -5,7 +19,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -26,14 +40,14 @@
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-api</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-data-std</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   	</dependency>
   </dependencies>
 </project>
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/ArrayTupleBuilder.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/ArrayTupleBuilder.java
index 8c865c4..9223740 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/ArrayTupleBuilder.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/ArrayTupleBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/ArrayTupleReference.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/ArrayTupleReference.java
index b265283..502ed29 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/ArrayTupleReference.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/ArrayTupleReference.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.dataflow.common.comm.io;
 
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameConstants.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameConstants.java
index aae9fc4..43538d7 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameConstants.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameConstants.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameDeserializer.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameDeserializer.java
index beaf862..556ecbb 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameDeserializer.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameDeserializer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameDeserializingDataReader.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameDeserializingDataReader.java
index 5d7ae0c..b94a219 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameDeserializingDataReader.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameDeserializingDataReader.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameDeserializingDataWriter.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameDeserializingDataWriter.java
index b095332..b3a72d7 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameDeserializingDataWriter.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameDeserializingDataWriter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameOutputStream.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameOutputStream.java
index c403501..1810674 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameOutputStream.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameOutputStream.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameTupleAccessor.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameTupleAccessor.java
index 6c51d14..ce4c74c 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameTupleAccessor.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameTupleAccessor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameTupleAppender.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameTupleAppender.java
index 956f5da..501dadf 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameTupleAppender.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameTupleAppender.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameTuplePairComparator.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameTuplePairComparator.java
index ee0195e..e89fd09 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameTuplePairComparator.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/FrameTuplePairComparator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/ResultFrameTupleAccessor.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/ResultFrameTupleAccessor.java
index 915a436..471b1ef 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/ResultFrameTupleAccessor.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/ResultFrameTupleAccessor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/SerializingDataWriter.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/SerializingDataWriter.java
index e3576ee..4392fd6 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/SerializingDataWriter.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/io/SerializingDataWriter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/util/ByteBufferInputStream.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/util/ByteBufferInputStream.java
index cd3c751..9cdd692 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/util/ByteBufferInputStream.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/util/ByteBufferInputStream.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/util/FrameUtils.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/util/FrameUtils.java
index 0d9e2b4..4387e68 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/util/FrameUtils.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/comm/util/FrameUtils.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/accessors/FrameTupleFieldValueReference.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/accessors/FrameTupleFieldValueReference.java
index 375be2d..077e358 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/accessors/FrameTupleFieldValueReference.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/accessors/FrameTupleFieldValueReference.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/accessors/FrameTupleReference.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/accessors/FrameTupleReference.java
index a21d5e9..fe05f5b 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/accessors/FrameTupleReference.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/accessors/FrameTupleReference.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/accessors/IFrameTupleReference.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/accessors/IFrameTupleReference.java
index e681149..e3c3aa3 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/accessors/IFrameTupleReference.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/accessors/IFrameTupleReference.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.dataflow.common.data.accessors;
 
 import edu.uci.ics.hyracks.api.comm.IFrameTupleAccessor;
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/accessors/ITupleReference.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/accessors/ITupleReference.java
index 4205724..a6b2e34 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/accessors/ITupleReference.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/accessors/ITupleReference.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.dataflow.common.data.accessors;
 
 public interface ITupleReference {
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/marshalling/BooleanSerializerDeserializer.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/marshalling/BooleanSerializerDeserializer.java
index 7667d2e..a11a8fb 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/marshalling/BooleanSerializerDeserializer.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/marshalling/BooleanSerializerDeserializer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/marshalling/DoubleSerializerDeserializer.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/marshalling/DoubleSerializerDeserializer.java
index 899752d..678b7eb 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/marshalling/DoubleSerializerDeserializer.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/marshalling/DoubleSerializerDeserializer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/marshalling/FloatSerializerDeserializer.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/marshalling/FloatSerializerDeserializer.java
index 67e57ed..2300fcb 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/marshalling/FloatSerializerDeserializer.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/marshalling/FloatSerializerDeserializer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/marshalling/IntArraySerializerDeserializer.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/marshalling/IntArraySerializerDeserializer.java
index 371f65a..6a9275c 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/marshalling/IntArraySerializerDeserializer.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/marshalling/IntArraySerializerDeserializer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/marshalling/Integer64SerializerDeserializer.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/marshalling/Integer64SerializerDeserializer.java
index effc092..b5b59e7 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/marshalling/Integer64SerializerDeserializer.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/marshalling/Integer64SerializerDeserializer.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.dataflow.common.data.marshalling;
 
 import java.io.DataInput;
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/marshalling/IntegerSerializerDeserializer.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/marshalling/IntegerSerializerDeserializer.java
index 171dbb7..3d000fc 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/marshalling/IntegerSerializerDeserializer.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/marshalling/IntegerSerializerDeserializer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/marshalling/ShortSerializerDeserializer.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/marshalling/ShortSerializerDeserializer.java
index 15384b3..ad0cf93 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/marshalling/ShortSerializerDeserializer.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/marshalling/ShortSerializerDeserializer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/marshalling/UTF8StringSerializerDeserializer.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/marshalling/UTF8StringSerializerDeserializer.java
index 0fa887f..9c47976 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/marshalling/UTF8StringSerializerDeserializer.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/marshalling/UTF8StringSerializerDeserializer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/normalizers/DoubleNormalizedKeyComputerFactory.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/normalizers/DoubleNormalizedKeyComputerFactory.java
index e95e9c2..8ff90e0 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/normalizers/DoubleNormalizedKeyComputerFactory.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/normalizers/DoubleNormalizedKeyComputerFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.dataflow.common.data.normalizers;
 
 import edu.uci.ics.hyracks.api.dataflow.value.INormalizedKeyComputer;
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/normalizers/FloatNormalizedKeyComputerFactory.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/normalizers/FloatNormalizedKeyComputerFactory.java
index d58afc1..8cb2116 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/normalizers/FloatNormalizedKeyComputerFactory.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/normalizers/FloatNormalizedKeyComputerFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.dataflow.common.data.normalizers;
 
 import edu.uci.ics.hyracks.api.dataflow.value.INormalizedKeyComputer;
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/normalizers/Integer64NormalizedKeyComputerFactory.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/normalizers/Integer64NormalizedKeyComputerFactory.java
index 4589909..aaeb33c 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/normalizers/Integer64NormalizedKeyComputerFactory.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/normalizers/Integer64NormalizedKeyComputerFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.dataflow.common.data.normalizers;
 
 import edu.uci.ics.hyracks.api.dataflow.value.INormalizedKeyComputer;
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/normalizers/IntegerNormalizedKeyComputerFactory.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/normalizers/IntegerNormalizedKeyComputerFactory.java
index 6a01842..9b0f7c4 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/normalizers/IntegerNormalizedKeyComputerFactory.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/normalizers/IntegerNormalizedKeyComputerFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/normalizers/UTF8StringNormalizedKeyComputerFactory.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/normalizers/UTF8StringNormalizedKeyComputerFactory.java
index 7d7ebac..363bb6a 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/normalizers/UTF8StringNormalizedKeyComputerFactory.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/normalizers/UTF8StringNormalizedKeyComputerFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/parsers/DoubleParserFactory.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/parsers/DoubleParserFactory.java
index 6363c18..69cd933 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/parsers/DoubleParserFactory.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/parsers/DoubleParserFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/parsers/FloatParserFactory.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/parsers/FloatParserFactory.java
index d20c98e..a072ad0 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/parsers/FloatParserFactory.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/parsers/FloatParserFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/parsers/IValueParser.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/parsers/IValueParser.java
index ac07ca2..f8d66b3 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/parsers/IValueParser.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/parsers/IValueParser.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/parsers/IValueParserFactory.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/parsers/IValueParserFactory.java
index 0d8725a..9134828 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/parsers/IValueParserFactory.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/parsers/IValueParserFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/parsers/IntegerParserFactory.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/parsers/IntegerParserFactory.java
index f9aa519..922c078 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/parsers/IntegerParserFactory.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/parsers/IntegerParserFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/parsers/LongParserFactory.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/parsers/LongParserFactory.java
index d9191c7..b52a54e 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/parsers/LongParserFactory.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/parsers/LongParserFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/parsers/UTF8StringParserFactory.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/parsers/UTF8StringParserFactory.java
index 8ddddac..2ab76ec 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/parsers/UTF8StringParserFactory.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/parsers/UTF8StringParserFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/partition/FieldHashPartitionComputerFactory.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/partition/FieldHashPartitionComputerFactory.java
index f6d4d51..a1084fe 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/partition/FieldHashPartitionComputerFactory.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/partition/FieldHashPartitionComputerFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/partition/FieldHashPartitionComputerFamily.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/partition/FieldHashPartitionComputerFamily.java
index ec3c2be..590184c 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/partition/FieldHashPartitionComputerFamily.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/partition/FieldHashPartitionComputerFamily.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/partition/RepartitionComputerFactory.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/partition/RepartitionComputerFactory.java
index a6dde66..29592c4 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/partition/RepartitionComputerFactory.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/partition/RepartitionComputerFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/partition/RepartitionComputerGeneratorFactory.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/partition/RepartitionComputerGeneratorFactory.java
index 7b4c96b..df66531 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/partition/RepartitionComputerGeneratorFactory.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/partition/RepartitionComputerGeneratorFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.dataflow.common.data.partition;
 
 import edu.uci.ics.hyracks.api.comm.IFrameTupleAccessor;
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/util/StringUtils.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/util/StringUtils.java
index 8a30a71..c63ca2d 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/util/StringUtils.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/data/util/StringUtils.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/io/RunFileReader.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/io/RunFileReader.java
index a706692..31cd25c 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/io/RunFileReader.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/io/RunFileReader.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.dataflow.common.io;
 
 import java.nio.ByteBuffer;
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/io/RunFileWriter.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/io/RunFileWriter.java
index 37a1a2c..6da35be 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/io/RunFileWriter.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/io/RunFileWriter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/util/ReflectionUtils.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/util/ReflectionUtils.java
index 4c5999e..8212a91 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/util/ReflectionUtils.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/util/ReflectionUtils.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/util/SerdeUtils.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/util/SerdeUtils.java
index 9dafa83..be7db57 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/util/SerdeUtils.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/util/SerdeUtils.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/util/TupleUtils.java b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/util/TupleUtils.java
index 02047e8..2c00f1f 100644
--- a/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/util/TupleUtils.java
+++ b/hyracks/hyracks-dataflow-common/src/main/java/edu/uci/ics/hyracks/dataflow/common/util/TupleUtils.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-hadoop/pom.xml b/hyracks/hyracks-dataflow-hadoop/pom.xml
index 657f6db..6468118 100644
--- a/hyracks/hyracks-dataflow-hadoop/pom.xml
+++ b/hyracks/hyracks-dataflow-hadoop/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-dataflow-hadoop</artifactId>
@@ -6,7 +20,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -26,14 +40,14 @@
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-api</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-dataflow-common</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
@@ -53,7 +67,7 @@
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-dataflow-std</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<scope>compile</scope>
   	</dependency>
   </dependencies>
diff --git a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/AbstractHadoopOperatorDescriptor.java b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/AbstractHadoopOperatorDescriptor.java
index 70dfd9e..cc2ce9b 100644
--- a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/AbstractHadoopOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/AbstractHadoopOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/HadoopMapperOperatorDescriptor.java b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/HadoopMapperOperatorDescriptor.java
index 34f3e9d..9f0e298 100644
--- a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/HadoopMapperOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/HadoopMapperOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/HadoopReadOperatorDescriptor.java b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/HadoopReadOperatorDescriptor.java
index 5e5cae1..fa8ac14 100644
--- a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/HadoopReadOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/HadoopReadOperatorDescriptor.java
@@ -1,4 +1,18 @@
 /*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*
  * Copyright 2009-2010 University of California, Irvine
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/HadoopReducerOperatorDescriptor.java b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/HadoopReducerOperatorDescriptor.java
index 86a4c3c..feccf30 100644
--- a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/HadoopReducerOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/HadoopReducerOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/HadoopWriteOperatorDescriptor.java b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/HadoopWriteOperatorDescriptor.java
index 7ce3b00..433b36c 100644
--- a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/HadoopWriteOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/HadoopWriteOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/data/AbstractClassBasedDelegate.java b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/data/AbstractClassBasedDelegate.java
index 666cc21..d892c1e 100644
--- a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/data/AbstractClassBasedDelegate.java
+++ b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/data/AbstractClassBasedDelegate.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/data/HadoopHashTuplePartitionComputerFactory.java b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/data/HadoopHashTuplePartitionComputerFactory.java
index 98da69c..a314b17 100644
--- a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/data/HadoopHashTuplePartitionComputerFactory.java
+++ b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/data/HadoopHashTuplePartitionComputerFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/data/HadoopNewPartitionerTuplePartitionComputerFactory.java b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/data/HadoopNewPartitionerTuplePartitionComputerFactory.java
index 71a3110..62d65d5 100644
--- a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/data/HadoopNewPartitionerTuplePartitionComputerFactory.java
+++ b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/data/HadoopNewPartitionerTuplePartitionComputerFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/data/HadoopPartitionerTuplePartitionComputerFactory.java b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/data/HadoopPartitionerTuplePartitionComputerFactory.java
index 81d7c6d..767efbf 100644
--- a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/data/HadoopPartitionerTuplePartitionComputerFactory.java
+++ b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/data/HadoopPartitionerTuplePartitionComputerFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/data/KeyBinaryComparatorFactory.java b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/data/KeyBinaryComparatorFactory.java
index ad8a9e8..61e2ba3 100644
--- a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/data/KeyBinaryComparatorFactory.java
+++ b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/data/KeyBinaryComparatorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/data/KeyComparatorFactory.java b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/data/KeyComparatorFactory.java
index cba86d7..6d68f96 100644
--- a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/data/KeyComparatorFactory.java
+++ b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/data/KeyComparatorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/data/RawComparingComparatorFactory.java b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/data/RawComparingComparatorFactory.java
index 329fb86..c7110c9 100644
--- a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/data/RawComparingComparatorFactory.java
+++ b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/data/RawComparingComparatorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/data/WritableComparingBinaryComparatorFactory.java b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/data/WritableComparingBinaryComparatorFactory.java
index 4efa614..81dd246 100644
--- a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/data/WritableComparingBinaryComparatorFactory.java
+++ b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/data/WritableComparingBinaryComparatorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/HadoopHelper.java b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/HadoopHelper.java
index e8b6e8b..ddc080b 100644
--- a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/HadoopHelper.java
+++ b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/HadoopHelper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/HadoopTools.java b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/HadoopTools.java
index 7e4d67f..107b32c 100644
--- a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/HadoopTools.java
+++ b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/HadoopTools.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/HashPartitioningShuffleConnectorDescriptor.java b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/HashPartitioningShuffleConnectorDescriptor.java
index 5e00e96..d5adfbb 100644
--- a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/HashPartitioningShuffleConnectorDescriptor.java
+++ b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/HashPartitioningShuffleConnectorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/IInputSplitProvider.java b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/IInputSplitProvider.java
index 1545c06..6ba8ec5 100644
--- a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/IInputSplitProvider.java
+++ b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/IInputSplitProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/IInputSplitProviderFactory.java b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/IInputSplitProviderFactory.java
index 73588ab..46595de 100644
--- a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/IInputSplitProviderFactory.java
+++ b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/IInputSplitProviderFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/InputFileSplit.java b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/InputFileSplit.java
index b37084e..edf358f 100644
--- a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/InputFileSplit.java
+++ b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/InputFileSplit.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.dataflow.hadoop.mapreduce;
 
 import java.io.DataInput;
diff --git a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/KVIterator.java b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/KVIterator.java
index a00fa7f..0bbb21f 100644
--- a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/KVIterator.java
+++ b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/KVIterator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/MapperOperatorDescriptor.java b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/MapperOperatorDescriptor.java
index e498975..04b91b2 100644
--- a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/MapperOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/MapperOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/MarshalledWritable.java b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/MarshalledWritable.java
index be05f22..4bb1c3d 100644
--- a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/MarshalledWritable.java
+++ b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/MarshalledWritable.java
@@ -1,4 +1,18 @@
 /*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*
  * Copyright 2009-2010 University of California, Irvine
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/ReduceWriter.java b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/ReduceWriter.java
index 84a41b3..f84ffda 100644
--- a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/ReduceWriter.java
+++ b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/ReduceWriter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/ReducerOperatorDescriptor.java b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/ReducerOperatorDescriptor.java
index d6cab23..ff02fd9 100644
--- a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/ReducerOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/ReducerOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/ShuffleFrameReader.java b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/ShuffleFrameReader.java
index 9cea25d..30ba3ec 100644
--- a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/ShuffleFrameReader.java
+++ b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/mapreduce/ShuffleFrameReader.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/util/ClasspathBasedHadoopClassFactory.java b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/util/ClasspathBasedHadoopClassFactory.java
index a9f3a71..00ddda7 100644
--- a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/util/ClasspathBasedHadoopClassFactory.java
+++ b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/util/ClasspathBasedHadoopClassFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/util/DatatypeHelper.java b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/util/DatatypeHelper.java
index 10f29c8..899a84b 100644
--- a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/util/DatatypeHelper.java
+++ b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/util/DatatypeHelper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/util/DuplicateKeyMapper.java b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/util/DuplicateKeyMapper.java
index 1601a28..8ab8773 100644
--- a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/util/DuplicateKeyMapper.java
+++ b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/util/DuplicateKeyMapper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/util/IHadoopClassFactory.java b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/util/IHadoopClassFactory.java
index c2ffeeb..8ffc0f7 100644
--- a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/util/IHadoopClassFactory.java
+++ b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/util/IHadoopClassFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/util/InputSplitsProxy.java b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/util/InputSplitsProxy.java
index 9226c29..1991869 100644
--- a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/util/InputSplitsProxy.java
+++ b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/util/InputSplitsProxy.java
@@ -1,4 +1,18 @@
 /*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*
  * Copyright 2009-2010 University of California, Irvine
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/util/PreappendLongWritableMapper.java b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/util/PreappendLongWritableMapper.java
index e4542c6..ec7f939 100644
--- a/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/util/PreappendLongWritableMapper.java
+++ b/hyracks/hyracks-dataflow-hadoop/src/main/java/edu/uci/ics/hyracks/dataflow/hadoop/util/PreappendLongWritableMapper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/pom.xml b/hyracks/hyracks-dataflow-std/pom.xml
index 8e67891..f88e852 100644
--- a/hyracks/hyracks-dataflow-std/pom.xml
+++ b/hyracks/hyracks-dataflow-std/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-dataflow-std</artifactId>
@@ -6,7 +20,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -27,14 +41,14 @@
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-api</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-dataflow-common</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractActivityNode.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractActivityNode.java
index 11a02b3..6004953 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractActivityNode.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractActivityNode.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractConnectorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractConnectorDescriptor.java
index ef479e1..d018203 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractConnectorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractConnectorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractMToNConnectorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractMToNConnectorDescriptor.java
index 8e9f131..30b2482 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractMToNConnectorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractMToNConnectorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractOperatorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractOperatorDescriptor.java
index 153abd3..f3f8a2f 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractOperatorNodePushable.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractOperatorNodePushable.java
index d8e90a3..f1b1fcc 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractOperatorNodePushable.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractOperatorNodePushable.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.dataflow.std.base;
 
 import edu.uci.ics.hyracks.api.dataflow.IOperatorNodePushable;
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractSingleActivityOperatorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractSingleActivityOperatorDescriptor.java
index 9048670..fb6b512 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractSingleActivityOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractSingleActivityOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractStateObject.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractStateObject.java
index 753fb98..9fd4ec5 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractStateObject.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractStateObject.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.dataflow.std.base;
 
 import edu.uci.ics.hyracks.api.dataflow.state.IStateObject;
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractUnaryInputOperatorNodePushable.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractUnaryInputOperatorNodePushable.java
index c6ef746..869f497 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractUnaryInputOperatorNodePushable.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractUnaryInputOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractUnaryInputSinkOperatorNodePushable.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractUnaryInputSinkOperatorNodePushable.java
index 12e8cb4..5fd0b21 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractUnaryInputSinkOperatorNodePushable.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractUnaryInputSinkOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractUnaryInputUnaryOutputOperatorNodePushable.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractUnaryInputUnaryOutputOperatorNodePushable.java
index e3767b3..0c288f4 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractUnaryInputUnaryOutputOperatorNodePushable.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractUnaryInputUnaryOutputOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractUnaryOutputOperatorNodePushable.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractUnaryOutputOperatorNodePushable.java
index 1ce7281..1d6c2df 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractUnaryOutputOperatorNodePushable.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractUnaryOutputOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractUnaryOutputSourceOperatorNodePushable.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractUnaryOutputSourceOperatorNodePushable.java
index db09e57..fb51234 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractUnaryOutputSourceOperatorNodePushable.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/AbstractUnaryOutputSourceOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/IOpenableDataWriterOperator.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/IOpenableDataWriterOperator.java
index b802c6f..5213280 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/IOpenableDataWriterOperator.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/base/IOpenableDataWriterOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/AbstractPartitionCollector.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/AbstractPartitionCollector.java
index b2dad8f..a79717e 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/AbstractPartitionCollector.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/AbstractPartitionCollector.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/IPartitionAcceptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/IPartitionAcceptor.java
index 8942ea9..4ae5a5a 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/IPartitionAcceptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/IPartitionAcceptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/IPartitionBatchManager.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/IPartitionBatchManager.java
index 4962d64..a66f04a 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/IPartitionBatchManager.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/IPartitionBatchManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/InputChannelFrameReader.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/InputChannelFrameReader.java
index 713fb0e..607a817 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/InputChannelFrameReader.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/InputChannelFrameReader.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.dataflow.std.collectors;
 
 import java.nio.ByteBuffer;
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/NonDeterministicChannelReader.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/NonDeterministicChannelReader.java
index 578bfec..9a84173 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/NonDeterministicChannelReader.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/NonDeterministicChannelReader.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/NonDeterministicFrameReader.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/NonDeterministicFrameReader.java
index 657165c..e107cfa 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/NonDeterministicFrameReader.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/NonDeterministicFrameReader.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/NonDeterministicPartitionBatchManager.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/NonDeterministicPartitionBatchManager.java
index ba25850..6f56758 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/NonDeterministicPartitionBatchManager.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/NonDeterministicPartitionBatchManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/PartitionCollector.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/PartitionCollector.java
index 23df4bb..16a1090 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/PartitionCollector.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/PartitionCollector.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/SortMergeFrameReader.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/SortMergeFrameReader.java
index 5f41069..235b0d0 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/SortMergeFrameReader.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/collectors/SortMergeFrameReader.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/GlobalHashingLocalityMap.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/GlobalHashingLocalityMap.java
index f3086f0..753c001 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/GlobalHashingLocalityMap.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/GlobalHashingLocalityMap.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/HashtableLocalityMap.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/HashtableLocalityMap.java
index a187a59..270054f 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/HashtableLocalityMap.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/HashtableLocalityMap.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/ILocalityMap.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/ILocalityMap.java
index b30971d..bb59e30 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/ILocalityMap.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/ILocalityMap.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/LocalityAwareMToNPartitioningConnectorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/LocalityAwareMToNPartitioningConnectorDescriptor.java
index 0349633..e5b1e34 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/LocalityAwareMToNPartitioningConnectorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/LocalityAwareMToNPartitioningConnectorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/LocalityAwarePartitionDataWriter.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/LocalityAwarePartitionDataWriter.java
index bea94ff..dcca28e 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/LocalityAwarePartitionDataWriter.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/LocalityAwarePartitionDataWriter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/MToNPartitioningConnectorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/MToNPartitioningConnectorDescriptor.java
index 451e208..ab8d45d 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/MToNPartitioningConnectorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/MToNPartitioningConnectorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/MToNPartitioningMergingConnectorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/MToNPartitioningMergingConnectorDescriptor.java
index 0d80161..32269bd 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/MToNPartitioningMergingConnectorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/MToNPartitioningMergingConnectorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/MToNReplicatingConnectorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/MToNReplicatingConnectorDescriptor.java
index 2d04938..20be66b 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/MToNReplicatingConnectorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/MToNReplicatingConnectorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/OneToOneConnectorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/OneToOneConnectorDescriptor.java
index 7d007a4..466fead 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/OneToOneConnectorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/OneToOneConnectorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/PartitionDataWriter.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/PartitionDataWriter.java
index 820e2ce..a1d24e7 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/PartitionDataWriter.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/connectors/PartitionDataWriter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/AbstractDeserializedFileScanOperatorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/AbstractDeserializedFileScanOperatorDescriptor.java
index 1cd898e..ca536fe 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/AbstractDeserializedFileScanOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/AbstractDeserializedFileScanOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/AbstractFileWriteOperatorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/AbstractFileWriteOperatorDescriptor.java
index e05d80d..36e0f3b 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/AbstractFileWriteOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/AbstractFileWriteOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/ConstantFileSplitProvider.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/ConstantFileSplitProvider.java
index 21f5e3f..18575dd 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/ConstantFileSplitProvider.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/ConstantFileSplitProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/DelimitedDataTupleParserFactory.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/DelimitedDataTupleParserFactory.java
index 9c1ea9d..d3d4833 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/DelimitedDataTupleParserFactory.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/DelimitedDataTupleParserFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/FileScanOperatorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/FileScanOperatorDescriptor.java
index 2139119..d36b29e 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/FileScanOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/FileScanOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/FileSplit.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/FileSplit.java
index 35649ca..0a7ffa2 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/FileSplit.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/FileSplit.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/FrameFileWriterOperatorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/FrameFileWriterOperatorDescriptor.java
index 7f257ea..ed90c2e 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/FrameFileWriterOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/FrameFileWriterOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/IFileSplitProvider.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/IFileSplitProvider.java
index 90f65ab..085a745 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/IFileSplitProvider.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/IFileSplitProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/IRecordReader.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/IRecordReader.java
index 5d94c12..2e81057 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/IRecordReader.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/IRecordReader.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/IRecordWriter.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/IRecordWriter.java
index 679088f..ed5e3c4 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/IRecordWriter.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/IRecordWriter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/ITupleParser.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/ITupleParser.java
index 5014e41..9625ca6 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/ITupleParser.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/ITupleParser.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/ITupleParserFactory.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/ITupleParserFactory.java
index 4718572..e2518ee 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/ITupleParserFactory.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/ITupleParserFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/LineFileWriteOperatorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/LineFileWriteOperatorDescriptor.java
index d5256ee..5ad214b 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/LineFileWriteOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/LineFileWriteOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/PlainFileWriterOperatorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/PlainFileWriterOperatorDescriptor.java
index 6fb0189..99f5a5f 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/PlainFileWriterOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/PlainFileWriterOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/RecordFileScanOperatorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/RecordFileScanOperatorDescriptor.java
index 36e07c4..cac2503 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/RecordFileScanOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/RecordFileScanOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/RecordWriter.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/RecordWriter.java
index 1858a73..8763a69 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/RecordWriter.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/RecordWriter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/AggregateState.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/AggregateState.java
index e72f85c..a5feadf 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/AggregateState.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/AggregateState.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/DeserializedPreclusteredGroupOperator.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/DeserializedPreclusteredGroupOperator.java
index 370f6d0..2088652 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/DeserializedPreclusteredGroupOperator.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/DeserializedPreclusteredGroupOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/FrameToolsForGroupers.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/FrameToolsForGroupers.java
index 2346160..5bef89d 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/FrameToolsForGroupers.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/FrameToolsForGroupers.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/HashSpillableTableFactory.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/HashSpillableTableFactory.java
index 39862fd..ecd5284 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/HashSpillableTableFactory.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/HashSpillableTableFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/IAggregatorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/IAggregatorDescriptor.java
index 2cf978c..afe460c 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/IAggregatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/IAggregatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/IAggregatorDescriptorFactory.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/IAggregatorDescriptorFactory.java
index 9ff915d..a4c0564 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/IAggregatorDescriptorFactory.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/IAggregatorDescriptorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/IFieldAggregateDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/IFieldAggregateDescriptor.java
index a34fa73..8520f02 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/IFieldAggregateDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/IFieldAggregateDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/IFieldAggregateDescriptorFactory.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/IFieldAggregateDescriptorFactory.java
index 6f50597..fc9891f 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/IFieldAggregateDescriptorFactory.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/IFieldAggregateDescriptorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/IGroupAggregator.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/IGroupAggregator.java
index 7e2ba4b..a5d254e 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/IGroupAggregator.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/IGroupAggregator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/ISpillableTable.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/ISpillableTable.java
index ff80a23..65f71a3 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/ISpillableTable.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/ISpillableTable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/ISpillableTableFactory.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/ISpillableTableFactory.java
index de9fac5..8cfbce6 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/ISpillableTableFactory.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/ISpillableTableFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/aggregators/AvgFieldGroupAggregatorFactory.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/aggregators/AvgFieldGroupAggregatorFactory.java
index 2e781b5..28f84c4 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/aggregators/AvgFieldGroupAggregatorFactory.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/aggregators/AvgFieldGroupAggregatorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/aggregators/AvgFieldMergeAggregatorFactory.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/aggregators/AvgFieldMergeAggregatorFactory.java
index cc5c1e1..8b76d81 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/aggregators/AvgFieldMergeAggregatorFactory.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/aggregators/AvgFieldMergeAggregatorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/aggregators/CountFieldAggregatorFactory.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/aggregators/CountFieldAggregatorFactory.java
index 9bfec8e..d98bffe 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/aggregators/CountFieldAggregatorFactory.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/aggregators/CountFieldAggregatorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/aggregators/FloatSumFieldAggregatorFactory.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/aggregators/FloatSumFieldAggregatorFactory.java
index f8b1d74..a198606 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/aggregators/FloatSumFieldAggregatorFactory.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/aggregators/FloatSumFieldAggregatorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/aggregators/IntSumFieldAggregatorFactory.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/aggregators/IntSumFieldAggregatorFactory.java
index 7d85deb..a5f89a5 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/aggregators/IntSumFieldAggregatorFactory.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/aggregators/IntSumFieldAggregatorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/aggregators/MinMaxStringFieldAggregatorFactory.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/aggregators/MinMaxStringFieldAggregatorFactory.java
index 94ebcbd..43955f1 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/aggregators/MinMaxStringFieldAggregatorFactory.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/aggregators/MinMaxStringFieldAggregatorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/aggregators/MultiFieldsAggregatorFactory.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/aggregators/MultiFieldsAggregatorFactory.java
index 6c436a9..239f24f 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/aggregators/MultiFieldsAggregatorFactory.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/aggregators/MultiFieldsAggregatorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/external/ExternalGroupBuildOperatorNodePushable.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/external/ExternalGroupBuildOperatorNodePushable.java
index ede6728..8e9e8b8 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/external/ExternalGroupBuildOperatorNodePushable.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/external/ExternalGroupBuildOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/external/ExternalGroupMergeOperatorNodePushable.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/external/ExternalGroupMergeOperatorNodePushable.java
index 297b75c..21b3b60 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/external/ExternalGroupMergeOperatorNodePushable.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/external/ExternalGroupMergeOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/external/ExternalGroupOperatorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/external/ExternalGroupOperatorDescriptor.java
index 9fd45e9..b914702 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/external/ExternalGroupOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/external/ExternalGroupOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/external/ExternalGroupState.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/external/ExternalGroupState.java
index a3cf0e3..5e5d62a 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/external/ExternalGroupState.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/external/ExternalGroupState.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/hash/GroupingHashTable.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/hash/GroupingHashTable.java
index a1ac618..f8ba003 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/hash/GroupingHashTable.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/hash/GroupingHashTable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/hash/HashGroupBuildOperatorNodePushable.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/hash/HashGroupBuildOperatorNodePushable.java
index 0b73766..8e49a9a 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/hash/HashGroupBuildOperatorNodePushable.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/hash/HashGroupBuildOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/hash/HashGroupOperatorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/hash/HashGroupOperatorDescriptor.java
index 034e13f..edd7ca8 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/hash/HashGroupOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/hash/HashGroupOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/hash/HashGroupOutputOperatorNodePushable.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/hash/HashGroupOutputOperatorNodePushable.java
index 9e3ada0..f6b7664 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/hash/HashGroupOutputOperatorNodePushable.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/hash/HashGroupOutputOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/hash/HashGroupState.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/hash/HashGroupState.java
index adaaaa6..f53d22c 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/hash/HashGroupState.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/hash/HashGroupState.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/preclustered/PreclusteredGroupOperatorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/preclustered/PreclusteredGroupOperatorDescriptor.java
index d37b818..763531d 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/preclustered/PreclusteredGroupOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/preclustered/PreclusteredGroupOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/preclustered/PreclusteredGroupOperatorNodePushable.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/preclustered/PreclusteredGroupOperatorNodePushable.java
index 4acda14..35cb9e1 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/preclustered/PreclusteredGroupOperatorNodePushable.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/preclustered/PreclusteredGroupOperatorNodePushable.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.dataflow.std.group.preclustered;
 
 import java.nio.ByteBuffer;
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/preclustered/PreclusteredGroupWriter.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/preclustered/PreclusteredGroupWriter.java
index d795e00..7773765 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/preclustered/PreclusteredGroupWriter.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/group/preclustered/PreclusteredGroupWriter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/GraceHashJoinOperatorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/GraceHashJoinOperatorDescriptor.java
index 0bb514e..af4aad2 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/GraceHashJoinOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/GraceHashJoinOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/GraceHashJoinOperatorNodePushable.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/GraceHashJoinOperatorNodePushable.java
index 7c9bd88..8375521 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/GraceHashJoinOperatorNodePushable.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/GraceHashJoinOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/GraceHashJoinPartitionBuildOperatorNodePushable.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/GraceHashJoinPartitionBuildOperatorNodePushable.java
index 719b736..c6dbe61 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/GraceHashJoinPartitionBuildOperatorNodePushable.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/GraceHashJoinPartitionBuildOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/GraceHashJoinPartitionState.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/GraceHashJoinPartitionState.java
index 906042e..1334259 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/GraceHashJoinPartitionState.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/GraceHashJoinPartitionState.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/HybridHashJoinOperatorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/HybridHashJoinOperatorDescriptor.java
index f7be7c8..1bfa413 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/HybridHashJoinOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/HybridHashJoinOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/InMemoryHashJoin.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/InMemoryHashJoin.java
index 0f27aa7..d02d65c 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/InMemoryHashJoin.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/InMemoryHashJoin.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/InMemoryHashJoinOperatorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/InMemoryHashJoinOperatorDescriptor.java
index 705923a..be369d2 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/InMemoryHashJoinOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/InMemoryHashJoinOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/JoinComparator.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/JoinComparator.java
index 4891be8..3256d2e 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/JoinComparator.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/JoinComparator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.dataflow.std.join;
 
 import edu.uci.ics.hyracks.api.comm.IFrameTupleAccessor;
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/JoinComparatorFactory.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/JoinComparatorFactory.java
index 377e9e0..a44cc03 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/JoinComparatorFactory.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/JoinComparatorFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.dataflow.std.join;
 
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/NestedLoopJoin.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/NestedLoopJoin.java
index d365864..2f719fa 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/NestedLoopJoin.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/NestedLoopJoin.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/NestedLoopJoinOperatorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/NestedLoopJoinOperatorDescriptor.java
index d3f664e..41f0f4f 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/NestedLoopJoinOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/NestedLoopJoinOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/OptimizedHybridHashJoin.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/OptimizedHybridHashJoin.java
index 175ef80..cd32c81 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/OptimizedHybridHashJoin.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/OptimizedHybridHashJoin.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.dataflow.std.join;
 
 import java.nio.ByteBuffer;
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/OptimizedHybridHashJoinOperatorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/OptimizedHybridHashJoinOperatorDescriptor.java
index 1068a95..95b7a3c 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/OptimizedHybridHashJoinOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/join/OptimizedHybridHashJoinOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/map/DeserializedMapperOperatorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/map/DeserializedMapperOperatorDescriptor.java
index 30aae7f..050d5c5 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/map/DeserializedMapperOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/map/DeserializedMapperOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/map/IDeserializedMapper.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/map/IDeserializedMapper.java
index fe9ab1c..2da1370 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/map/IDeserializedMapper.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/map/IDeserializedMapper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/map/IDeserializedMapperFactory.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/map/IDeserializedMapperFactory.java
index 6fadfdc..13aa2c3 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/map/IDeserializedMapperFactory.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/map/IDeserializedMapperFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/map/ReflectionBasedDeserializedMapperFactory.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/map/ReflectionBasedDeserializedMapperFactory.java
index d207a5c..25ae619 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/map/ReflectionBasedDeserializedMapperFactory.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/map/ReflectionBasedDeserializedMapperFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/map/SamplerDeserializedMapperFactory.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/map/SamplerDeserializedMapperFactory.java
index bf05106..b5690ef 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/map/SamplerDeserializedMapperFactory.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/map/SamplerDeserializedMapperFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/ConstantTupleSourceOperatorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/ConstantTupleSourceOperatorDescriptor.java
index e22db5c..6353cab 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/ConstantTupleSourceOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/ConstantTupleSourceOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/ConstantTupleSourceOperatorNodePushable.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/ConstantTupleSourceOperatorNodePushable.java
index ab9b44c..12f319f 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/ConstantTupleSourceOperatorNodePushable.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/ConstantTupleSourceOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/IdentityOperatorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/IdentityOperatorDescriptor.java
index b58b1c2..da9c4b8 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/IdentityOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/IdentityOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/LimitOperatorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/LimitOperatorDescriptor.java
index 2d2f074..1fff4fe 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/LimitOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/LimitOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/MaterializingOperatorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/MaterializingOperatorDescriptor.java
index ba8c00c..ac5a627 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/MaterializingOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/MaterializingOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/NullSinkOperatorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/NullSinkOperatorDescriptor.java
index 7c32c60..4f8bf18 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/NullSinkOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/NullSinkOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/PrinterOperatorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/PrinterOperatorDescriptor.java
index 47a8616..9569a7b 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/PrinterOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/PrinterOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/SplitOperatorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/SplitOperatorDescriptor.java
index 231a8d7..0e8f303 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/SplitOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/SplitOperatorDescriptor.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.dataflow.std.misc;
 
 import java.nio.ByteBuffer;
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/SplitVectorOperatorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/SplitVectorOperatorDescriptor.java
index aad0e66..89a8aaa 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/SplitVectorOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/misc/SplitVectorOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/result/ResultWriterOperatorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/result/ResultWriterOperatorDescriptor.java
index 8b06679..42ed59e 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/result/ResultWriterOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/result/ResultWriterOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -42,13 +42,16 @@
 
     private final boolean ordered;
 
+    private final boolean asyncMode;
+
     private final IResultSerializerFactory resultSerializerFactory;
 
     public ResultWriterOperatorDescriptor(IOperatorDescriptorRegistry spec, ResultSetId rsId, boolean ordered,
-            IResultSerializerFactory resultSerializerFactory) throws IOException {
+            boolean asyncMode, IResultSerializerFactory resultSerializerFactory) throws IOException {
         super(spec, 1, 0);
         this.rsId = rsId;
         this.ordered = ordered;
+        this.asyncMode = asyncMode;
         this.resultSerializerFactory = resultSerializerFactory;
     }
 
@@ -76,7 +79,7 @@
             @Override
             public void open() throws HyracksDataException {
                 try {
-                    datasetPartitionWriter = dpm.createDatasetPartitionWriter(ctx, rsId, ordered, partition,
+                    datasetPartitionWriter = dpm.createDatasetPartitionWriter(ctx, rsId, ordered, asyncMode, partition,
                             nPartitions);
                     datasetPartitionWriter.open();
                     resultSerializer.init();
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/BSTMemMgr.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/BSTMemMgr.java
index d3c0852..110bddb 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/BSTMemMgr.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/BSTMemMgr.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/BSTNodeUtil.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/BSTNodeUtil.java
index 2b9f7c9..8a1bcd3 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/BSTNodeUtil.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/BSTNodeUtil.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/ExternalSortOperatorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/ExternalSortOperatorDescriptor.java
index be71b44..f80a82c 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/ExternalSortOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/ExternalSortOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/ExternalSortRunGenerator.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/ExternalSortRunGenerator.java
index c07372d..b149e30 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/ExternalSortRunGenerator.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/ExternalSortRunGenerator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/ExternalSortRunMerger.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/ExternalSortRunMerger.java
index 39cfb88..510dfd6 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/ExternalSortRunMerger.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/ExternalSortRunMerger.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.dataflow.std.sort;
 
 import java.nio.ByteBuffer;
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/FrameSorter.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/FrameSorter.java
index ed38fd8..db70a62 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/FrameSorter.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/FrameSorter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/IMemoryManager.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/IMemoryManager.java
index 418b4ad..e669335 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/IMemoryManager.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/IMemoryManager.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.dataflow.std.sort;
 
 import java.nio.ByteBuffer;
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/IRunGenerator.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/IRunGenerator.java
index 69cf8b1..2840d01 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/IRunGenerator.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/IRunGenerator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.dataflow.std.sort;
 
 import java.util.List;
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/ISelectionTree.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/ISelectionTree.java
index a7d6c08..54dc4b9 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/ISelectionTree.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/ISelectionTree.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.dataflow.std.sort;
 
 /**
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/InMemorySortOperatorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/InMemorySortOperatorDescriptor.java
index 3b3c28d..04c82af 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/InMemorySortOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/InMemorySortOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/OptimizedExternalSortOperatorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/OptimizedExternalSortOperatorDescriptor.java
index d9c16d8..bff2e21 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/OptimizedExternalSortOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/OptimizedExternalSortOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/OptimizedExternalSortRunGenerator.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/OptimizedExternalSortRunGenerator.java
index f01d886..ab237a3 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/OptimizedExternalSortRunGenerator.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/OptimizedExternalSortRunGenerator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/OptimizedExternalSortRunGeneratorWithLimit.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/OptimizedExternalSortRunGeneratorWithLimit.java
index 25442b3..cb629bc 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/OptimizedExternalSortRunGeneratorWithLimit.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/OptimizedExternalSortRunGeneratorWithLimit.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/RunMergingFrameReader.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/RunMergingFrameReader.java
index 29c28a1..16b3c12 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/RunMergingFrameReader.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/RunMergingFrameReader.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/Slot.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/Slot.java
index aaa9049..73f99dd 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/Slot.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/Slot.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.dataflow.std.sort;
 
 /**
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/SortMinHeap.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/SortMinHeap.java
index a221118..5938be9 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/SortMinHeap.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/SortMinHeap.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.dataflow.std.sort;
 
 import java.nio.ByteBuffer;
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/SortMinMaxHeap.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/SortMinMaxHeap.java
index dcaf781..c05c7c0 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/SortMinMaxHeap.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/sort/SortMinMaxHeap.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.dataflow.std.sort;
 
 import java.nio.ByteBuffer;
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/structures/ISerializableTable.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/structures/ISerializableTable.java
index c21a6fd..ce6c00c 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/structures/ISerializableTable.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/structures/ISerializableTable.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.dataflow.std.structures;
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/structures/SerializableHashTable.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/structures/SerializableHashTable.java
index 1977c61..a245c9d 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/structures/SerializableHashTable.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/structures/SerializableHashTable.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.dataflow.std.structures;
 
 import java.util.ArrayList;
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/structures/TuplePointer.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/structures/TuplePointer.java
index 6618fb1..8ef478c 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/structures/TuplePointer.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/structures/TuplePointer.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.dataflow.std.structures;
 
 public class TuplePointer {
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/union/UnionAllOperatorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/union/UnionAllOperatorDescriptor.java
index 7ac9f58..2bbc924 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/union/UnionAllOperatorDescriptor.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/union/UnionAllOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/util/DeserializedOperatorNodePushable.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/util/DeserializedOperatorNodePushable.java
index 2330341..aff4273 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/util/DeserializedOperatorNodePushable.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/util/DeserializedOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/util/ReferenceEntry.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/util/ReferenceEntry.java
index eafe2d7..c1efa91 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/util/ReferenceEntry.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/util/ReferenceEntry.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/util/ReferencedPriorityQueue.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/util/ReferencedPriorityQueue.java
index b209a4a..7767ace 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/util/ReferencedPriorityQueue.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/util/ReferencedPriorityQueue.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/util/SelectionTree.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/util/SelectionTree.java
index 2a288cc..7aed9e1 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/util/SelectionTree.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/util/SelectionTree.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/util/StringSerializationUtils.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/util/StringSerializationUtils.java
index 1126c1f..231cee5 100644
--- a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/util/StringSerializationUtils.java
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/util/StringSerializationUtils.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dataflow-std/src/test/java/edu/uci/ics/hyracks/dataflow/std/test/util/SelectionTreeTest.java b/hyracks/hyracks-dataflow-std/src/test/java/edu/uci/ics/hyracks/dataflow/std/test/util/SelectionTreeTest.java
index 8f467a0..2c6b2b8 100644
--- a/hyracks/hyracks-dataflow-std/src/test/java/edu/uci/ics/hyracks/dataflow/std/test/util/SelectionTreeTest.java
+++ b/hyracks/hyracks-dataflow-std/src/test/java/edu/uci/ics/hyracks/dataflow/std/test/util/SelectionTreeTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-dist/pom.xml b/hyracks/hyracks-dist/pom.xml
index 2dcd0ed..7e9526b 100755
--- a/hyracks/hyracks-dist/pom.xml
+++ b/hyracks/hyracks-dist/pom.xml
@@ -1,10 +1,24 @@
-<?xml version="1.0"?>
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<artifactId>hyracks</artifactId>
 		<groupId>edu.uci.ics.hyracks</groupId>
-		<version>0.2.6-SNAPSHOT</version>
+		<version>0.2.7-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hyracks-dist</artifactId>
diff --git a/hyracks/hyracks-dist/src/main/resources/bin/getip.sh b/hyracks/hyracks-dist/src/main/resources/bin/getip.sh
index a691c0f..f1a20d9 100755
--- a/hyracks/hyracks-dist/src/main/resources/bin/getip.sh
+++ b/hyracks/hyracks-dist/src/main/resources/bin/getip.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #get the OS
 OS_NAME=`uname -a|awk '{print $1}'`
 LINUX_OS='Linux'
diff --git a/hyracks/hyracks-dist/src/main/resources/bin/startAllNCs.sh b/hyracks/hyracks-dist/src/main/resources/bin/startAllNCs.sh
index 629bd90..abe968e 100755
--- a/hyracks/hyracks-dist/src/main/resources/bin/startAllNCs.sh
+++ b/hyracks/hyracks-dist/src/main/resources/bin/startAllNCs.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 PREGELIX_PATH=`pwd`
 
 for i in `cat conf/slaves`
diff --git a/hyracks/hyracks-dist/src/main/resources/bin/startCluster.sh b/hyracks/hyracks-dist/src/main/resources/bin/startCluster.sh
index a0c2063..ae28901 100755
--- a/hyracks/hyracks-dist/src/main/resources/bin/startCluster.sh
+++ b/hyracks/hyracks-dist/src/main/resources/bin/startCluster.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 bin/startcc.sh
 sleep 5
 bin/startAllNCs.sh
diff --git a/hyracks/hyracks-dist/src/main/resources/bin/startDebugNc.sh b/hyracks/hyracks-dist/src/main/resources/bin/startDebugNc.sh
index fe6cf27..63673a6 100755
--- a/hyracks/hyracks-dist/src/main/resources/bin/startDebugNc.sh
+++ b/hyracks/hyracks-dist/src/main/resources/bin/startDebugNc.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 hostname
 
 #Get the IP address of the cc
diff --git a/hyracks/hyracks-dist/src/main/resources/bin/startcc.sh b/hyracks/hyracks-dist/src/main/resources/bin/startcc.sh
index 484ecac..7e52521 100755
--- a/hyracks/hyracks-dist/src/main/resources/bin/startcc.sh
+++ b/hyracks/hyracks-dist/src/main/resources/bin/startcc.sh
@@ -1,4 +1,18 @@
 #!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 hostname
 
 #Import cluster properties
diff --git a/hyracks/hyracks-dist/src/main/resources/bin/startnc.sh b/hyracks/hyracks-dist/src/main/resources/bin/startnc.sh
index 23a4c36..2e19cf6 100755
--- a/hyracks/hyracks-dist/src/main/resources/bin/startnc.sh
+++ b/hyracks/hyracks-dist/src/main/resources/bin/startnc.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 hostname
 
 MY_NAME=`hostname`
diff --git a/hyracks/hyracks-dist/src/main/resources/bin/stopAllNCs.sh b/hyracks/hyracks-dist/src/main/resources/bin/stopAllNCs.sh
index 12367c1..8e490ce 100755
--- a/hyracks/hyracks-dist/src/main/resources/bin/stopAllNCs.sh
+++ b/hyracks/hyracks-dist/src/main/resources/bin/stopAllNCs.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 PREGELIX_PATH=`pwd`
 
 for i in `cat conf/slaves`
diff --git a/hyracks/hyracks-dist/src/main/resources/bin/stopCluster.sh b/hyracks/hyracks-dist/src/main/resources/bin/stopCluster.sh
index 4889934..fab9c1a 100755
--- a/hyracks/hyracks-dist/src/main/resources/bin/stopCluster.sh
+++ b/hyracks/hyracks-dist/src/main/resources/bin/stopCluster.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 bin/stopAllNCs.sh
 sleep 2
 bin/stopcc.sh
diff --git a/hyracks/hyracks-dist/src/main/resources/bin/stopcc.sh b/hyracks/hyracks-dist/src/main/resources/bin/stopcc.sh
index c2f525a..88848a6 100755
--- a/hyracks/hyracks-dist/src/main/resources/bin/stopcc.sh
+++ b/hyracks/hyracks-dist/src/main/resources/bin/stopcc.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 hostname
 . conf/cluster.properties
 
diff --git a/hyracks/hyracks-dist/src/main/resources/bin/stopnc.sh b/hyracks/hyracks-dist/src/main/resources/bin/stopnc.sh
index 35c4794..0da0561 100755
--- a/hyracks/hyracks-dist/src/main/resources/bin/stopnc.sh
+++ b/hyracks/hyracks-dist/src/main/resources/bin/stopnc.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 hostname
 . conf/cluster.properties
 
diff --git a/hyracks/hyracks-dist/src/main/resources/conf/cluster.properties b/hyracks/hyracks-dist/src/main/resources/conf/cluster.properties
index 3b382f7..3aaa4a4 100755
--- a/hyracks/hyracks-dist/src/main/resources/conf/cluster.properties
+++ b/hyracks/hyracks-dist/src/main/resources/conf/cluster.properties
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #The CC port for Hyracks clients
 CC_CLIENTPORT=3099
 
diff --git a/hyracks/hyracks-dist/src/main/resources/conf/debugnc.properties b/hyracks/hyracks-dist/src/main/resources/conf/debugnc.properties
index 27afa26..23e04c6 100755
--- a/hyracks/hyracks-dist/src/main/resources/conf/debugnc.properties
+++ b/hyracks/hyracks-dist/src/main/resources/conf/debugnc.properties
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #The tmp directory for nc to install jars
 NCTMP_DIR2=/tmp/t-1
 
diff --git a/hyracks/hyracks-dist/src/main/resources/conf/topology-template.xml b/hyracks/hyracks-dist/src/main/resources/conf/topology-template.xml
index 4710706..2d64b15 100755
--- a/hyracks/hyracks-dist/src/main/resources/conf/topology-template.xml
+++ b/hyracks/hyracks-dist/src/main/resources/conf/topology-template.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <cluster-topology>
     <network-switch name="Global">
         <network-switch name="local">
diff --git a/hyracks/hyracks-documentation/pom.xml b/hyracks/hyracks-documentation/pom.xml
index 958bd71..a814994 100644
--- a/hyracks/hyracks-documentation/pom.xml
+++ b/hyracks/hyracks-documentation/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-documentation</artifactId>
@@ -6,7 +20,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
diff --git a/hyracks/hyracks-documentation/src/books/user-guide/doxia-descriptor.xml b/hyracks/hyracks-documentation/src/books/user-guide/doxia-descriptor.xml
index 1fb3c0c..d3c715b 100644
--- a/hyracks/hyracks-documentation/src/books/user-guide/doxia-descriptor.xml
+++ b/hyracks/hyracks-documentation/src/books/user-guide/doxia-descriptor.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <book xmlns="http://maven.apache.org/BOOK/1.0.0"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/BOOK/1.0.0 ../../../doxia/doxia-book/target/generated-site/xsd/book-1.0.0.xsd">
diff --git a/hyracks/hyracks-examples/btree-example/btreeclient/pom.xml b/hyracks/hyracks-examples/btree-example/btreeclient/pom.xml
index b2c1779..0a5331f 100644
--- a/hyracks/hyracks-examples/btree-example/btreeclient/pom.xml
+++ b/hyracks/hyracks-examples/btree-example/btreeclient/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <groupId>edu.uci.ics.hyracks.examples.btree</groupId>
@@ -6,26 +20,26 @@
   <parent>
     <groupId>edu.uci.ics.hyracks.examples</groupId>
     <artifactId>btree-example</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <dependencies>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-dataflow-std</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-storage-am-btree</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks.examples.btree</groupId>
   		<artifactId>btreehelper</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
diff --git a/hyracks/hyracks-examples/btree-example/btreeclient/src/main/assembly/binary-assembly.xml b/hyracks/hyracks-examples/btree-example/btreeclient/src/main/assembly/binary-assembly.xml
index 0500499..e722e72 100644
--- a/hyracks/hyracks-examples/btree-example/btreeclient/src/main/assembly/binary-assembly.xml
+++ b/hyracks/hyracks-examples/btree-example/btreeclient/src/main/assembly/binary-assembly.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <assembly>
   <id>binary-assembly</id>
   <formats>
diff --git a/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/InsertPipelineExample.java b/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/InsertPipelineExample.java
index a939a04..cde561e 100644
--- a/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/InsertPipelineExample.java
+++ b/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/InsertPipelineExample.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/JobHelper.java b/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/JobHelper.java
index 63f07f0..46840fe 100644
--- a/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/JobHelper.java
+++ b/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/JobHelper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/PrimaryIndexBulkLoadExample.java b/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/PrimaryIndexBulkLoadExample.java
index 616fdae..a027570 100644
--- a/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/PrimaryIndexBulkLoadExample.java
+++ b/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/PrimaryIndexBulkLoadExample.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -149,7 +149,8 @@
         IIndexDataflowHelperFactory dataflowHelperFactory = new BTreeDataflowHelperFactory();
         TreeIndexBulkLoadOperatorDescriptor btreeBulkLoad = new TreeIndexBulkLoadOperatorDescriptor(spec,
                 storageManager, lcManagerProvider, btreeSplitProvider, typeTraits, comparatorFactories, null,
-                fieldPermutation, 0.7f, false, 1000L, dataflowHelperFactory, NoOpOperationCallbackFactory.INSTANCE);
+                fieldPermutation, 0.7f, false, 1000L, true, dataflowHelperFactory,
+                NoOpOperationCallbackFactory.INSTANCE);
         JobHelper.createPartitionConstraint(spec, btreeBulkLoad, splitNCs);
 
         // distribute the records from the datagen via hashing to the bulk load
diff --git a/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/PrimaryIndexSearchExample.java b/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/PrimaryIndexSearchExample.java
index 3493947..a36fbdd 100644
--- a/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/PrimaryIndexSearchExample.java
+++ b/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/PrimaryIndexSearchExample.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/SecondaryIndexBulkLoadExample.java b/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/SecondaryIndexBulkLoadExample.java
index 075ea20..805660f 100644
--- a/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/SecondaryIndexBulkLoadExample.java
+++ b/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/SecondaryIndexBulkLoadExample.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -141,7 +141,8 @@
         IFileSplitProvider btreeSplitProvider = JobHelper.createFileSplitProvider(splitNCs, options.secondaryBTreeName);
         TreeIndexBulkLoadOperatorDescriptor btreeBulkLoad = new TreeIndexBulkLoadOperatorDescriptor(spec,
                 storageManager, lcManagerProvider, btreeSplitProvider, secondaryTypeTraits, comparatorFactories, null,
-                fieldPermutation, 0.7f, false, 1000L, dataflowHelperFactory, NoOpOperationCallbackFactory.INSTANCE);
+                fieldPermutation, 0.7f, false, 1000L, true, dataflowHelperFactory,
+                NoOpOperationCallbackFactory.INSTANCE);
         JobHelper.createPartitionConstraint(spec, btreeBulkLoad, splitNCs);
 
         // connect the ops
diff --git a/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/SecondaryIndexSearchExample.java b/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/SecondaryIndexSearchExample.java
index a6ffc13..fc5a37a 100644
--- a/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/SecondaryIndexSearchExample.java
+++ b/hyracks/hyracks-examples/btree-example/btreeclient/src/main/java/edu/uci/ics/hyracks/examples/btree/client/SecondaryIndexSearchExample.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/btree-example/btreehelper/pom.xml b/hyracks/hyracks-examples/btree-example/btreehelper/pom.xml
index b394a88..3d701ce 100644
--- a/hyracks/hyracks-examples/btree-example/btreehelper/pom.xml
+++ b/hyracks/hyracks-examples/btree-example/btreehelper/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <groupId>edu.uci.ics.hyracks.examples.btree</groupId>
@@ -6,32 +20,32 @@
   <parent>
     <groupId>edu.uci.ics.hyracks.examples</groupId>
     <artifactId>btree-example</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <dependencies>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-dataflow-std</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-storage-am-btree</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-api</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-data-std</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   	</dependency>
   </dependencies>
   <build>
diff --git a/hyracks/hyracks-examples/btree-example/btreehelper/src/main/java/edu/uci/ics/hyracks/examples/btree/helper/DataGenOperatorDescriptor.java b/hyracks/hyracks-examples/btree-example/btreehelper/src/main/java/edu/uci/ics/hyracks/examples/btree/helper/DataGenOperatorDescriptor.java
index ff6cc61..ed4cf0c 100644
--- a/hyracks/hyracks-examples/btree-example/btreehelper/src/main/java/edu/uci/ics/hyracks/examples/btree/helper/DataGenOperatorDescriptor.java
+++ b/hyracks/hyracks-examples/btree-example/btreehelper/src/main/java/edu/uci/ics/hyracks/examples/btree/helper/DataGenOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/btree-example/btreehelper/src/main/java/edu/uci/ics/hyracks/examples/btree/helper/IndexLifecycleManagerProvider.java b/hyracks/hyracks-examples/btree-example/btreehelper/src/main/java/edu/uci/ics/hyracks/examples/btree/helper/IndexLifecycleManagerProvider.java
index 6a17755..312887c 100644
--- a/hyracks/hyracks-examples/btree-example/btreehelper/src/main/java/edu/uci/ics/hyracks/examples/btree/helper/IndexLifecycleManagerProvider.java
+++ b/hyracks/hyracks-examples/btree-example/btreehelper/src/main/java/edu/uci/ics/hyracks/examples/btree/helper/IndexLifecycleManagerProvider.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.examples.btree.helper;
 
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
diff --git a/hyracks/hyracks-examples/btree-example/btreehelper/src/main/java/edu/uci/ics/hyracks/examples/btree/helper/NCApplicationEntryPoint.java b/hyracks/hyracks-examples/btree-example/btreehelper/src/main/java/edu/uci/ics/hyracks/examples/btree/helper/NCApplicationEntryPoint.java
index a1dacd8..0ea6617 100644
--- a/hyracks/hyracks-examples/btree-example/btreehelper/src/main/java/edu/uci/ics/hyracks/examples/btree/helper/NCApplicationEntryPoint.java
+++ b/hyracks/hyracks-examples/btree-example/btreehelper/src/main/java/edu/uci/ics/hyracks/examples/btree/helper/NCApplicationEntryPoint.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.examples.btree.helper;
 
 import edu.uci.ics.hyracks.api.application.INCApplicationContext;
diff --git a/hyracks/hyracks-examples/btree-example/btreehelper/src/main/java/edu/uci/ics/hyracks/examples/btree/helper/RuntimeContext.java b/hyracks/hyracks-examples/btree-example/btreehelper/src/main/java/edu/uci/ics/hyracks/examples/btree/helper/RuntimeContext.java
index aa5ce1d..9dd303d 100644
--- a/hyracks/hyracks-examples/btree-example/btreehelper/src/main/java/edu/uci/ics/hyracks/examples/btree/helper/RuntimeContext.java
+++ b/hyracks/hyracks-examples/btree-example/btreehelper/src/main/java/edu/uci/ics/hyracks/examples/btree/helper/RuntimeContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -15,6 +15,8 @@
 
 package edu.uci.ics.hyracks.examples.btree.helper;
 
+import java.util.concurrent.ThreadFactory;
+
 import edu.uci.ics.hyracks.api.application.INCApplicationContext;
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
@@ -42,20 +44,25 @@
     private ILocalResourceRepository localResourceRepository;
     private IIndexLifecycleManager lcManager;
     private ResourceIdFactory resourceIdFactory;
+    private ThreadFactory threadFactory = new ThreadFactory() {
+        public Thread newThread(Runnable r) {
+            return new Thread(r);
+        }
+    };
 
     public RuntimeContext(INCApplicationContext appCtx) throws HyracksDataException {
         fileMapManager = new TransientFileMapManager();
         ICacheMemoryAllocator allocator = new HeapBufferAllocator();
         IPageReplacementStrategy prs = new ClockPageReplacementStrategy();
         bufferCache = new BufferCache(appCtx.getRootContext().getIOManager(), allocator, prs,
-                new DelayPageCleanerPolicy(1000), fileMapManager, 32768, 50, 100);
+                new DelayPageCleanerPolicy(1000), fileMapManager, 32768, 50, 100, threadFactory);
         lcManager = new IndexLifecycleManager();
         ILocalResourceRepositoryFactory localResourceRepositoryFactory = new TransientLocalResourceRepositoryFactory();
         localResourceRepository = localResourceRepositoryFactory.createRepository();
         resourceIdFactory = (new ResourceIdFactoryProvider(localResourceRepository)).createResourceIdFactory();
     }
 
-    public void close() {
+    public void close() throws HyracksDataException {
         bufferCache.close();
     }
 
diff --git a/hyracks/hyracks-examples/btree-example/btreehelper/src/main/java/edu/uci/ics/hyracks/examples/btree/helper/StorageManagerInterface.java b/hyracks/hyracks-examples/btree-example/btreehelper/src/main/java/edu/uci/ics/hyracks/examples/btree/helper/StorageManagerInterface.java
index e19847e..d67e381 100644
--- a/hyracks/hyracks-examples/btree-example/btreehelper/src/main/java/edu/uci/ics/hyracks/examples/btree/helper/StorageManagerInterface.java
+++ b/hyracks/hyracks-examples/btree-example/btreehelper/src/main/java/edu/uci/ics/hyracks/examples/btree/helper/StorageManagerInterface.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/btree-example/btreeserver/pom.xml b/hyracks/hyracks-examples/btree-example/btreeserver/pom.xml
index c70578e..fef46d8 100644
--- a/hyracks/hyracks-examples/btree-example/btreeserver/pom.xml
+++ b/hyracks/hyracks-examples/btree-example/btreeserver/pom.xml
@@ -1,14 +1,28 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <groupId>edu.uci.ics.hyracks.examples.btree</groupId>
   <artifactId>btreeserver</artifactId>
-  <version>0.2.6-SNAPSHOT</version>
+  <version>0.2.7-SNAPSHOT</version>
   <name>btreeserver</name>
 
   <parent>
     <groupId>edu.uci.ics.hyracks.examples</groupId>
     <artifactId>btree-example</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -63,20 +77,20 @@
   	<dependency>
   		<groupId>edu.uci.ics.hyracks.examples.btree</groupId>
   		<artifactId>btreehelper</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-control-cc</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-control-nc</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
diff --git a/hyracks/hyracks-examples/btree-example/btreeserver/src/main/assembly/binary-assembly.xml b/hyracks/hyracks-examples/btree-example/btreeserver/src/main/assembly/binary-assembly.xml
index cd598d9..ae362ca 100644
--- a/hyracks/hyracks-examples/btree-example/btreeserver/src/main/assembly/binary-assembly.xml
+++ b/hyracks/hyracks-examples/btree-example/btreeserver/src/main/assembly/binary-assembly.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <assembly>
   <id>binary-assembly</id>
   <formats>
diff --git a/hyracks/hyracks-examples/btree-example/pom.xml b/hyracks/hyracks-examples/btree-example/pom.xml
index 7332d0e..dc3293d 100644
--- a/hyracks/hyracks-examples/btree-example/pom.xml
+++ b/hyracks/hyracks-examples/btree-example/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <groupId>edu.uci.ics.hyracks.examples</groupId>
@@ -8,7 +22,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks-examples</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <modules>
diff --git a/hyracks/hyracks-examples/hadoop-compat-example/hadoopcompatclient/pom.xml b/hyracks/hyracks-examples/hadoop-compat-example/hadoopcompatclient/pom.xml
index acf2dbf..f18d6bf 100644
--- a/hyracks/hyracks-examples/hadoop-compat-example/hadoopcompatclient/pom.xml
+++ b/hyracks/hyracks-examples/hadoop-compat-example/hadoopcompatclient/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <groupId>edu.uci.ics.hyracks.examples.compat</groupId>
@@ -7,20 +21,20 @@
   <parent>
     <groupId>edu.uci.ics.hyracks.examples</groupId>
     <artifactId>hadoop-compat-example</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <dependencies>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-dataflow-std</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks.examples.compat</groupId>
   		<artifactId>hadoopcompathelper</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
diff --git a/hyracks/hyracks-examples/hadoop-compat-example/hadoopcompatclient/src/main/assembly/binary-assembly.xml b/hyracks/hyracks-examples/hadoop-compat-example/hadoopcompatclient/src/main/assembly/binary-assembly.xml
index 0500499..e722e72 100644
--- a/hyracks/hyracks-examples/hadoop-compat-example/hadoopcompatclient/src/main/assembly/binary-assembly.xml
+++ b/hyracks/hyracks-examples/hadoop-compat-example/hadoopcompatclient/src/main/assembly/binary-assembly.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <assembly>
   <id>binary-assembly</id>
   <formats>
diff --git a/hyracks/hyracks-examples/hadoop-compat-example/hadoopcompatclient/src/main/java/edu/uci/ics/hyracks/examples/compat/client/WordCountCompatibility.java b/hyracks/hyracks-examples/hadoop-compat-example/hadoopcompatclient/src/main/java/edu/uci/ics/hyracks/examples/compat/client/WordCountCompatibility.java
index da33c14..6182161 100644
--- a/hyracks/hyracks-examples/hadoop-compat-example/hadoopcompatclient/src/main/java/edu/uci/ics/hyracks/examples/compat/client/WordCountCompatibility.java
+++ b/hyracks/hyracks-examples/hadoop-compat-example/hadoopcompatclient/src/main/java/edu/uci/ics/hyracks/examples/compat/client/WordCountCompatibility.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/hadoop-compat-example/hadoopcompathelper/pom.xml b/hyracks/hyracks-examples/hadoop-compat-example/hadoopcompathelper/pom.xml
index 94f43df..fb595fd 100644
--- a/hyracks/hyracks-examples/hadoop-compat-example/hadoopcompathelper/pom.xml
+++ b/hyracks/hyracks-examples/hadoop-compat-example/hadoopcompathelper/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <groupId>edu.uci.ics.hyracks.examples.compat</groupId>
@@ -7,20 +21,20 @@
   <parent>
     <groupId>edu.uci.ics.hyracks.examples</groupId>
     <artifactId>hadoop-compat-example</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <dependencies>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-dataflow-std</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-api</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<scope>compile</scope>
   	</dependency>
   </dependencies>
diff --git a/hyracks/hyracks-examples/hadoop-compat-example/hadoopcompathelper/src/main/java/edu/uci/ics/hyracks/examples/wordcount/WordCount.java b/hyracks/hyracks-examples/hadoop-compat-example/hadoopcompathelper/src/main/java/edu/uci/ics/hyracks/examples/wordcount/WordCount.java
index 2a6ac3a..0c31bcd 100644
--- a/hyracks/hyracks-examples/hadoop-compat-example/hadoopcompathelper/src/main/java/edu/uci/ics/hyracks/examples/wordcount/WordCount.java
+++ b/hyracks/hyracks-examples/hadoop-compat-example/hadoopcompathelper/src/main/java/edu/uci/ics/hyracks/examples/wordcount/WordCount.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/hadoop-compat-example/hadoopcompatserver/pom.xml b/hyracks/hyracks-examples/hadoop-compat-example/hadoopcompatserver/pom.xml
index 9a0f7cb..d2062d3 100644
--- a/hyracks/hyracks-examples/hadoop-compat-example/hadoopcompatserver/pom.xml
+++ b/hyracks/hyracks-examples/hadoop-compat-example/hadoopcompatserver/pom.xml
@@ -1,14 +1,28 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <groupId>edu.uci.ics.hyracks.examples.compat</groupId>
   <artifactId>hadoopcompatserver</artifactId>
-  <version>0.2.6-SNAPSHOT</version>
+  <version>0.2.7-SNAPSHOT</version>
   <name>hadoopcompatserver</name>
 
   <parent>
     <groupId>edu.uci.ics.hyracks.examples</groupId>
     <artifactId>hadoop-compat-example</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -60,7 +74,7 @@
       <plugin>
       	<groupId>edu.uci.ics.hyracks</groupId>
       	<artifactId>hyracks-virtualcluster-maven-plugin</artifactId>
-      	<version>0.2.6-SNAPSHOT</version>
+      	<version>0.2.7-SNAPSHOT</version>
         <configuration>
           <hyracksServerHome>${basedir}/target/hadoopcompatserver-${project.version}-binary-assembly</hyracksServerHome>
           <jvmOptions>${jvm.extraargs}</jvmOptions>
@@ -135,27 +149,27 @@
      <dependency>
         <groupId>edu.uci.ics.hyracks.examples.compat</groupId>
         <artifactId>hadoopcompathelper</artifactId>
-        <version>0.2.6-SNAPSHOT</version>
+        <version>0.2.7-SNAPSHOT</version>
         <scope>compile</scope>
      </dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-control-cc</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-control-nc</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
      <dependency>
         <groupId>edu.uci.ics.hyracks.examples.compat</groupId>
   	    <artifactId>hadoopcompatclient</artifactId>
-  	    <version>0.2.6-SNAPSHOT</version>
+  	    <version>0.2.7-SNAPSHOT</version>
   	    <type>jar</type>
   	    <scope>test</scope>
      </dependency>
diff --git a/hyracks/hyracks-examples/hadoop-compat-example/hadoopcompatserver/src/main/assembly/binary-assembly.xml b/hyracks/hyracks-examples/hadoop-compat-example/hadoopcompatserver/src/main/assembly/binary-assembly.xml
index cd598d9..ae362ca 100644
--- a/hyracks/hyracks-examples/hadoop-compat-example/hadoopcompatserver/src/main/assembly/binary-assembly.xml
+++ b/hyracks/hyracks-examples/hadoop-compat-example/hadoopcompatserver/src/main/assembly/binary-assembly.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <assembly>
   <id>binary-assembly</id>
   <formats>
diff --git a/hyracks/hyracks-examples/hadoop-compat-example/hadoopcompatserver/src/test/java/edu/uci/ics/hyracks/examples/compat/test/WordCountCompatibilityIT.java b/hyracks/hyracks-examples/hadoop-compat-example/hadoopcompatserver/src/test/java/edu/uci/ics/hyracks/examples/compat/test/WordCountCompatibilityIT.java
index a2a8994..81bff01 100644
--- a/hyracks/hyracks-examples/hadoop-compat-example/hadoopcompatserver/src/test/java/edu/uci/ics/hyracks/examples/compat/test/WordCountCompatibilityIT.java
+++ b/hyracks/hyracks-examples/hadoop-compat-example/hadoopcompatserver/src/test/java/edu/uci/ics/hyracks/examples/compat/test/WordCountCompatibilityIT.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/hadoop-compat-example/pom.xml b/hyracks/hyracks-examples/hadoop-compat-example/pom.xml
index e927a1c..af88b09 100644
--- a/hyracks/hyracks-examples/hadoop-compat-example/pom.xml
+++ b/hyracks/hyracks-examples/hadoop-compat-example/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <groupId>edu.uci.ics.hyracks.examples</groupId>
@@ -8,7 +22,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks-examples</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <modules>
@@ -29,7 +43,7 @@
       <dependency>
          <groupId>edu.uci.ics.hyracks</groupId>
          <artifactId>hyracks-hadoop-compat</artifactId>
-         <version>0.2.6-SNAPSHOT</version>
+         <version>0.2.7-SNAPSHOT</version>
          <type>jar</type>
          <scope>compile</scope>
       </dependency>
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/pom.xml b/hyracks/hyracks-examples/hyracks-integration-tests/pom.xml
index 08ff5e2..a4fcf28 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/pom.xml
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>edu.uci.ics.hyracks.examples</groupId>
@@ -6,7 +20,7 @@
 	<parent>
 		<groupId>edu.uci.ics.hyracks</groupId>
 		<artifactId>hyracks-examples</artifactId>
-		<version>0.2.6-SNAPSHOT</version>
+		<version>0.2.7-SNAPSHOT</version>
 	</parent>
 	<build>
 		<plugins>
@@ -32,75 +46,75 @@
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-dataflow-std</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-control-cc</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-control-nc</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-storage-am-btree</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-storage-am-rtree</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-storage-am-lsm-btree</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-storage-am-lsm-rtree</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-storage-am-lsm-invertedindex</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-test-support</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>test</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-data-std</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 		</dependency>
   	    <dependency>
             <groupId>edu.uci.ics.hyracks</groupId>
             <artifactId>hyracks-client</artifactId>
-            <version>0.2.6-SNAPSHOT</version>
+            <version>0.2.7-SNAPSHOT</version>
             <type>jar</type>
             <scope>compile</scope>
         </dependency>
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/btree/AbstractBTreeOperatorTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/btree/AbstractBTreeOperatorTest.java
index 0af1193..eec7225 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/btree/AbstractBTreeOperatorTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/btree/AbstractBTreeOperatorTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -178,7 +178,7 @@
         int[] fieldPermutation = { 0, 1, 2, 4, 5, 7 };
         TreeIndexBulkLoadOperatorDescriptor primaryBtreeBulkLoad = new TreeIndexBulkLoadOperatorDescriptor(spec,
                 storageManager, lcManagerProvider, primarySplitProvider, primaryTypeTraits, primaryComparatorFactories,
-                primaryBloomFilterKeyFields, fieldPermutation, 0.7f, true, 1000L, dataflowHelperFactory,
+                primaryBloomFilterKeyFields, fieldPermutation, 0.7f, true, 1000L, true, dataflowHelperFactory,
                 NoOpOperationCallbackFactory.INSTANCE);
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, primaryBtreeBulkLoad, NC1_ID);
 
@@ -241,7 +241,7 @@
         int[] fieldPermutation = { 3, 0 };
         TreeIndexBulkLoadOperatorDescriptor secondaryBtreeBulkLoad = new TreeIndexBulkLoadOperatorDescriptor(spec,
                 storageManager, lcManagerProvider, secondarySplitProvider, secondaryTypeTraits,
-                secondaryComparatorFactories, secondaryBloomFilterKeyFields, fieldPermutation, 0.7f, true, 1000L,
+                secondaryComparatorFactories, secondaryBloomFilterKeyFields, fieldPermutation, 0.7f, true, 1000L, true,
                 dataflowHelperFactory, NoOpOperationCallbackFactory.INSTANCE);
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, secondaryBtreeBulkLoad, NC1_ID);
 
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/btree/BTreeOperatorTestHelper.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/btree/BTreeOperatorTestHelper.java
index 337bfda..6d096be 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/btree/BTreeOperatorTestHelper.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/btree/BTreeOperatorTestHelper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/btree/BTreePrimaryIndexScanOperatorTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/btree/BTreePrimaryIndexScanOperatorTest.java
index 7e1c42a..9f164a5 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/btree/BTreePrimaryIndexScanOperatorTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/btree/BTreePrimaryIndexScanOperatorTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/btree/BTreePrimaryIndexSearchOperatorTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/btree/BTreePrimaryIndexSearchOperatorTest.java
index 64bc657..f0d8df8 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/btree/BTreePrimaryIndexSearchOperatorTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/btree/BTreePrimaryIndexSearchOperatorTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/btree/BTreePrimaryIndexStatsOperatorTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/btree/BTreePrimaryIndexStatsOperatorTest.java
index c8d95ce..545d2d2 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/btree/BTreePrimaryIndexStatsOperatorTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/btree/BTreePrimaryIndexStatsOperatorTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/btree/BTreeSecondaryIndexInsertOperatorTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/btree/BTreeSecondaryIndexInsertOperatorTest.java
index 5a600a6..e4c1f97 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/btree/BTreeSecondaryIndexInsertOperatorTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/btree/BTreeSecondaryIndexInsertOperatorTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/btree/BTreeSecondaryIndexSearchOperatorTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/btree/BTreeSecondaryIndexSearchOperatorTest.java
index e3005cf..c912e7d 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/btree/BTreeSecondaryIndexSearchOperatorTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/btree/BTreeSecondaryIndexSearchOperatorTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/btree/BTreeSecondaryIndexUpsertOperatorTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/btree/BTreeSecondaryIndexUpsertOperatorTest.java
index 758e926..7a6fc73 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/btree/BTreeSecondaryIndexUpsertOperatorTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/btree/BTreeSecondaryIndexUpsertOperatorTest.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.tests.am.btree;
 
 import java.io.DataOutput;
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/common/ITreeIndexOperatorTestHelper.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/common/ITreeIndexOperatorTestHelper.java
index f0c4519..ae9b80e 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/common/ITreeIndexOperatorTestHelper.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/common/ITreeIndexOperatorTestHelper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/common/LSMTreeOperatorTestHelper.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/common/LSMTreeOperatorTestHelper.java
index 80b5285..afec1a7 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/common/LSMTreeOperatorTestHelper.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/common/LSMTreeOperatorTestHelper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -21,13 +21,20 @@
 
 import edu.uci.ics.hyracks.api.io.IODeviceHandle;
 import edu.uci.ics.hyracks.control.nc.io.IOManager;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCacheProvider;
+import edu.uci.ics.hyracks.test.support.TestVirtualBufferCacheProvider;
 
 public class LSMTreeOperatorTestHelper extends TreeOperatorTestHelper {
-
+    protected static int DEFAULT_MEM_PAGE_SIZE = 32768;
+    protected static int DEFAULT_MEM_NUM_PAGES = 1000;
+    protected static double DEFAULT_BLOOM_FILTER_FALSE_POSITIVE_RATE = 0.01;
     protected final IOManager ioManager;
+    protected final IVirtualBufferCacheProvider virtualBufferCacheProvider;
 
     public LSMTreeOperatorTestHelper(IOManager ioManager) {
         this.ioManager = ioManager;
+        this.virtualBufferCacheProvider = new TestVirtualBufferCacheProvider(DEFAULT_MEM_PAGE_SIZE,
+                DEFAULT_MEM_NUM_PAGES);
     }
 
     public String getPrimaryIndexName() {
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/common/TreeOperatorTestHelper.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/common/TreeOperatorTestHelper.java
index 932e166..d057663 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/common/TreeOperatorTestHelper.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/common/TreeOperatorTestHelper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -23,9 +23,6 @@
 
     protected final SimpleDateFormat simpleDateFormat = new SimpleDateFormat("ddMMyy-hhmmssSS");
     protected final String sep = System.getProperty("file.separator");
-    protected static int DEFAULT_MEM_PAGE_SIZE = 32768;
-    protected static int DEFAULT_MEM_NUM_PAGES = 1000;
-    protected static double DEFAULT_BLOOM_FILTER_FALSE_POSITIVE_RATE = 0.01;
 
     public String getPrimaryIndexName() {
         return System.getProperty("java.io.tmpdir") + sep + "primary" + simpleDateFormat.format(new Date());
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/invertedindex/AbstractfWordInvertedIndexTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/invertedindex/AbstractfWordInvertedIndexTest.java
index 808afac..1bd22d7 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/invertedindex/AbstractfWordInvertedIndexTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/invertedindex/AbstractfWordInvertedIndexTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -57,6 +57,7 @@
 import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexBulkLoadOperatorDescriptor;
 import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexCreateOperatorDescriptor;
 import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallbackFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCacheProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.api.IInvertedIndexSearchModifierFactory;
 import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.dataflow.BinaryTokenizerOperatorDescriptor;
 import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.dataflow.LSMInvertedIndexBulkLoadOperatorDescriptor;
@@ -73,6 +74,7 @@
 import edu.uci.ics.hyracks.test.support.TestIndexLifecycleManagerProvider;
 import edu.uci.ics.hyracks.test.support.TestStorageManagerComponentHolder;
 import edu.uci.ics.hyracks.test.support.TestStorageManagerInterface;
+import edu.uci.ics.hyracks.test.support.TestVirtualBufferCacheProvider;
 import edu.uci.ics.hyracks.tests.integration.AbstractIntegrationTest;
 
 @SuppressWarnings("rawtypes")
@@ -83,6 +85,8 @@
 
     protected static final int MERGE_THRESHOLD = 3;
 
+    protected IVirtualBufferCacheProvider virtualBufferCacheProvider = new TestVirtualBufferCacheProvider(
+            DEFAULT_MEM_PAGE_SIZE, DEFAULT_MEM_NUM_PAGES);
     protected IStorageManagerInterface storageManager = new TestStorageManagerInterface();
     protected IIndexLifecycleManagerProvider lcManagerProvider = new TestIndexLifecycleManagerProvider();
     protected IIndexDataflowHelperFactory btreeDataflowHelperFactory = new BTreeDataflowHelperFactory();
@@ -199,8 +203,8 @@
         int[] fieldPermutation = { 0, 1 };
         TreeIndexBulkLoadOperatorDescriptor primaryBtreeBulkLoad = new TreeIndexBulkLoadOperatorDescriptor(spec,
                 storageManager, lcManagerProvider, primaryFileSplitProvider, primaryTypeTraits,
-                primaryComparatorFactories, null, fieldPermutation, 0.7f, true, 1000L, btreeDataflowHelperFactory,
-                NoOpOperationCallbackFactory.INSTANCE);
+                primaryComparatorFactories, null, fieldPermutation, 0.7f, true, 1000L, true,
+                btreeDataflowHelperFactory, NoOpOperationCallbackFactory.INSTANCE);
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, primaryBtreeBulkLoad, NC1_ID);
         return primaryBtreeBulkLoad;
     }
@@ -273,7 +277,7 @@
 
     private IOperatorDescriptor createInvertedIndexBulkLoadOp(JobSpecification spec, int[] fieldPermutation) {
         LSMInvertedIndexBulkLoadOperatorDescriptor invIndexBulkLoadOp = new LSMInvertedIndexBulkLoadOperatorDescriptor(
-                spec, fieldPermutation, true, 1000L, storageManager, btreeFileSplitProvider, lcManagerProvider,
+                spec, fieldPermutation, true, 1000L, true, storageManager, btreeFileSplitProvider, lcManagerProvider,
                 tokenTypeTraits, tokenComparatorFactories, invListsTypeTraits, invListsComparatorFactories,
                 tokenizerFactory, invertedIndexDataflowHelperFactory, NoOpOperationCallbackFactory.INSTANCE);
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, invIndexBulkLoadOp, NC1_ID);
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/invertedindex/BinaryTokenizerOperatorTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/invertedindex/BinaryTokenizerOperatorTest.java
index 47480da..ba00691 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/invertedindex/BinaryTokenizerOperatorTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/invertedindex/BinaryTokenizerOperatorTest.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.tests.am.invertedindex;
 
 import java.io.File;
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/invertedindex/PartitionedWordInvertedIndexTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/invertedindex/PartitionedWordInvertedIndexTest.java
index dfd5495..fc932a3 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/invertedindex/PartitionedWordInvertedIndexTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/invertedindex/PartitionedWordInvertedIndexTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -29,7 +29,7 @@
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.ConstantMergePolicyProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.NoOpIOOperationCallback;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.SynchronousSchedulerProvider;
-import edu.uci.ics.hyracks.storage.am.lsm.common.impls.ThreadCountingOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.impls.ThreadCountingOperationTrackerProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.dataflow.PartitionedLSMInvertedIndexDataflowHelperFactory;
 
 public class PartitionedWordInvertedIndexTest extends AbstractfWordInvertedIndexTest {
@@ -52,9 +52,9 @@
                 PointableBinaryComparatorFactory.of(IntegerPointable.FACTORY) };
 
         invertedIndexDataflowHelperFactory = new PartitionedLSMInvertedIndexDataflowHelperFactory(
-                new ConstantMergePolicyProvider(MERGE_THRESHOLD), ThreadCountingOperationTrackerFactory.INSTANCE,
-                SynchronousSchedulerProvider.INSTANCE, NoOpIOOperationCallback.INSTANCE, DEFAULT_MEM_PAGE_SIZE,
-                DEFAULT_MEM_NUM_PAGES, DEFAULT_BLOOM_FILTER_FALSE_POSITIVE_RATE);
+                virtualBufferCacheProvider, new ConstantMergePolicyProvider(MERGE_THRESHOLD),
+                ThreadCountingOperationTrackerProvider.INSTANCE, SynchronousSchedulerProvider.INSTANCE,
+                NoOpIOOperationCallback.INSTANCE, DEFAULT_BLOOM_FILTER_FALSE_POSITIVE_RATE);
     }
 
     @Override
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/invertedindex/WordInvertedIndexTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/invertedindex/WordInvertedIndexTest.java
index 9e5a47b..75045b4 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/invertedindex/WordInvertedIndexTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/invertedindex/WordInvertedIndexTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -27,7 +27,7 @@
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.ConstantMergePolicyProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.NoOpIOOperationCallback;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.SynchronousSchedulerProvider;
-import edu.uci.ics.hyracks.storage.am.lsm.common.impls.ThreadCountingOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.impls.ThreadCountingOperationTrackerProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.dataflow.LSMInvertedIndexDataflowHelperFactory;
 
 public class WordInvertedIndexTest extends AbstractfWordInvertedIndexTest {
@@ -46,10 +46,10 @@
                 PointableBinaryComparatorFactory.of(UTF8StringPointable.FACTORY),
                 PointableBinaryComparatorFactory.of(IntegerPointable.FACTORY) };
 
-        invertedIndexDataflowHelperFactory = new LSMInvertedIndexDataflowHelperFactory(new ConstantMergePolicyProvider(
-                MERGE_THRESHOLD), ThreadCountingOperationTrackerFactory.INSTANCE,
-                SynchronousSchedulerProvider.INSTANCE, NoOpIOOperationCallback.INSTANCE, DEFAULT_MEM_PAGE_SIZE,
-                DEFAULT_MEM_NUM_PAGES, DEFAULT_BLOOM_FILTER_FALSE_POSITIVE_RATE);
+        invertedIndexDataflowHelperFactory = new LSMInvertedIndexDataflowHelperFactory(virtualBufferCacheProvider,
+                new ConstantMergePolicyProvider(MERGE_THRESHOLD), ThreadCountingOperationTrackerProvider.INSTANCE,
+                SynchronousSchedulerProvider.INSTANCE, NoOpIOOperationCallback.INSTANCE,
+                DEFAULT_BLOOM_FILTER_FALSE_POSITIVE_RATE);
     }
 
     @Override
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/btree/LSMBTreeOperatorTestHelper.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/btree/LSMBTreeOperatorTestHelper.java
index c67cbfd..e98ecde 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/btree/LSMBTreeOperatorTestHelper.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/btree/LSMBTreeOperatorTestHelper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -21,7 +21,7 @@
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.ConstantMergePolicyProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.NoOpIOOperationCallback;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.SynchronousSchedulerProvider;
-import edu.uci.ics.hyracks.storage.am.lsm.common.impls.ThreadCountingOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.impls.ThreadCountingOperationTrackerProvider;
 import edu.uci.ics.hyracks.tests.am.common.LSMTreeOperatorTestHelper;
 
 public class LSMBTreeOperatorTestHelper extends LSMTreeOperatorTestHelper {
@@ -33,9 +33,9 @@
     }
 
     public IIndexDataflowHelperFactory createDataFlowHelperFactory() {
-        return new LSMBTreeDataflowHelperFactory(new ConstantMergePolicyProvider(MERGE_THRESHOLD),
-                ThreadCountingOperationTrackerFactory.INSTANCE, SynchronousSchedulerProvider.INSTANCE,
-                NoOpIOOperationCallback.INSTANCE, DEFAULT_MEM_PAGE_SIZE, DEFAULT_MEM_NUM_PAGES,
+        return new LSMBTreeDataflowHelperFactory(virtualBufferCacheProvider, new ConstantMergePolicyProvider(
+                MERGE_THRESHOLD), ThreadCountingOperationTrackerProvider.INSTANCE,
+                SynchronousSchedulerProvider.INSTANCE, NoOpIOOperationCallback.INSTANCE,
                 DEFAULT_BLOOM_FILTER_FALSE_POSITIVE_RATE);
     }
 
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/btree/LSMBTreePrimaryIndexScanOperatorTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/btree/LSMBTreePrimaryIndexScanOperatorTest.java
index d751399..3b638d1 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/btree/LSMBTreePrimaryIndexScanOperatorTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/btree/LSMBTreePrimaryIndexScanOperatorTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/btree/LSMBTreePrimaryIndexSearchOperatorTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/btree/LSMBTreePrimaryIndexSearchOperatorTest.java
index bdcf3f6..6e880ab 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/btree/LSMBTreePrimaryIndexSearchOperatorTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/btree/LSMBTreePrimaryIndexSearchOperatorTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/btree/LSMBTreeSecondaryIndexInsertOperatorTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/btree/LSMBTreeSecondaryIndexInsertOperatorTest.java
index 5ba7279..8cf0687 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/btree/LSMBTreeSecondaryIndexInsertOperatorTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/btree/LSMBTreeSecondaryIndexInsertOperatorTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/btree/LSMBTreeSecondaryIndexSearchOperatorTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/btree/LSMBTreeSecondaryIndexSearchOperatorTest.java
index c1b1cd8..dd3b70e 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/btree/LSMBTreeSecondaryIndexSearchOperatorTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/btree/LSMBTreeSecondaryIndexSearchOperatorTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/rtree/LSMRTreeOperatorTestHelper.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/rtree/LSMRTreeOperatorTestHelper.java
index a892b4e..e7478d6 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/rtree/LSMRTreeOperatorTestHelper.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/rtree/LSMRTreeOperatorTestHelper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -23,7 +23,7 @@
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.ConstantMergePolicyProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.NoOpIOOperationCallback;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.SynchronousSchedulerProvider;
-import edu.uci.ics.hyracks.storage.am.lsm.common.impls.ThreadCountingOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.impls.ThreadCountingOperationTrackerProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.rtree.dataflow.LSMRTreeDataflowHelperFactory;
 import edu.uci.ics.hyracks.storage.am.rtree.frames.RTreePolicyType;
 import edu.uci.ics.hyracks.tests.am.common.LSMTreeOperatorTestHelper;
@@ -40,8 +40,8 @@
             IPrimitiveValueProviderFactory[] valueProviderFactories, RTreePolicyType rtreePolicyType,
             IBinaryComparatorFactory[] btreeComparatorFactories, ILinearizeComparatorFactory linearizerCmpFactory) {
         return new LSMRTreeDataflowHelperFactory(valueProviderFactories, rtreePolicyType, btreeComparatorFactories,
-                new ConstantMergePolicyProvider(MERGE_THRESHOLD), ThreadCountingOperationTrackerFactory.INSTANCE,
-                SynchronousSchedulerProvider.INSTANCE, NoOpIOOperationCallback.INSTANCE, linearizerCmpFactory,
-                DEFAULT_MEM_PAGE_SIZE, DEFAULT_MEM_NUM_PAGES, DEFAULT_BLOOM_FILTER_FALSE_POSITIVE_RATE);
+                virtualBufferCacheProvider, new ConstantMergePolicyProvider(MERGE_THRESHOLD),
+                ThreadCountingOperationTrackerProvider.INSTANCE, SynchronousSchedulerProvider.INSTANCE,
+                NoOpIOOperationCallback.INSTANCE, linearizerCmpFactory, DEFAULT_BLOOM_FILTER_FALSE_POSITIVE_RATE);
     }
 }
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/rtree/LSMRTreeSecondaryIndexInsertOperatorTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/rtree/LSMRTreeSecondaryIndexInsertOperatorTest.java
index 99eb6c3..ab6ffdd 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/rtree/LSMRTreeSecondaryIndexInsertOperatorTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/rtree/LSMRTreeSecondaryIndexInsertOperatorTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/rtree/LSMRTreeSecondaryIndexSearchOperatorTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/rtree/LSMRTreeSecondaryIndexSearchOperatorTest.java
index e1e6b04..591a75d 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/rtree/LSMRTreeSecondaryIndexSearchOperatorTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/rtree/LSMRTreeSecondaryIndexSearchOperatorTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesOperatorTestHelper.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesOperatorTestHelper.java
index bb31dcd..f883d90 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesOperatorTestHelper.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesOperatorTestHelper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -23,7 +23,7 @@
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.ConstantMergePolicyProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.NoOpIOOperationCallback;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.SynchronousSchedulerProvider;
-import edu.uci.ics.hyracks.storage.am.lsm.common.impls.ThreadCountingOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.impls.ThreadCountingOperationTrackerProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.rtree.dataflow.LSMRTreeWithAntiMatterTuplesDataflowHelperFactory;
 import edu.uci.ics.hyracks.storage.am.rtree.frames.RTreePolicyType;
 import edu.uci.ics.hyracks.tests.am.common.LSMTreeOperatorTestHelper;
@@ -40,8 +40,8 @@
             IPrimitiveValueProviderFactory[] valueProviderFactories, RTreePolicyType rtreePolicyType,
             IBinaryComparatorFactory[] btreeComparatorFactories, ILinearizeComparatorFactory linearizerCmpFactory) {
         return new LSMRTreeWithAntiMatterTuplesDataflowHelperFactory(valueProviderFactories, rtreePolicyType,
-                btreeComparatorFactories, new ConstantMergePolicyProvider(MERGE_THRESHOLD),
-                ThreadCountingOperationTrackerFactory.INSTANCE, SynchronousSchedulerProvider.INSTANCE,
+                btreeComparatorFactories, virtualBufferCacheProvider, new ConstantMergePolicyProvider(MERGE_THRESHOLD),
+                ThreadCountingOperationTrackerProvider.INSTANCE, SynchronousSchedulerProvider.INSTANCE,
                 NoOpIOOperationCallback.INSTANCE, linearizerCmpFactory);
     }
 
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesSecondaryIndexInsertOperatorTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesSecondaryIndexInsertOperatorTest.java
index bbf4dd3..29816e3 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesSecondaryIndexInsertOperatorTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesSecondaryIndexInsertOperatorTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesSecondaryIndexSearchOperatorTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesSecondaryIndexSearchOperatorTest.java
index b615636..2cf1418 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesSecondaryIndexSearchOperatorTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesSecondaryIndexSearchOperatorTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/rtree/AbstractRTreeOperatorTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/rtree/AbstractRTreeOperatorTest.java
index c4a63df..d1c682c 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/rtree/AbstractRTreeOperatorTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/rtree/AbstractRTreeOperatorTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -223,7 +223,7 @@
         int[] fieldPermutation = { 0, 1, 2, 4, 5, 7, 9, 10, 11, 12 };
         TreeIndexBulkLoadOperatorDescriptor primaryBulkLoad = new TreeIndexBulkLoadOperatorDescriptor(spec,
                 storageManager, lcManagerProvider, primarySplitProvider, primaryTypeTraits, primaryComparatorFactories,
-                null, fieldPermutation, 0.7f, false, 1000L, btreeDataflowHelperFactory,
+                null, fieldPermutation, 0.7f, false, 1000L, true, btreeDataflowHelperFactory,
                 NoOpOperationCallbackFactory.INSTANCE);
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, primaryBulkLoad, NC1_ID);
 
@@ -280,8 +280,8 @@
         int[] fieldPermutation = { 6, 7, 8, 9, 0 };
         TreeIndexBulkLoadOperatorDescriptor secondaryBulkLoad = new TreeIndexBulkLoadOperatorDescriptor(spec,
                 storageManager, lcManagerProvider, secondarySplitProvider, secondaryTypeTraits,
-                secondaryComparatorFactories, null, fieldPermutation, 0.7f, false, 1000L, rtreeDataflowHelperFactory,
-                NoOpOperationCallbackFactory.INSTANCE);
+                secondaryComparatorFactories, null, fieldPermutation, 0.7f, false, 1000L, true,
+                rtreeDataflowHelperFactory, NoOpOperationCallbackFactory.INSTANCE);
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, secondaryBulkLoad, NC1_ID);
 
         spec.connect(new OneToOneConnectorDescriptor(spec), keyProviderOp, 0, primarySearchOp, 0);
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/rtree/RTreeOperatorTestHelper.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/rtree/RTreeOperatorTestHelper.java
index 85abcb1..ce56c3d 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/rtree/RTreeOperatorTestHelper.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/rtree/RTreeOperatorTestHelper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/rtree/RTreeSecondaryIndexInsertOperatorTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/rtree/RTreeSecondaryIndexInsertOperatorTest.java
index 8e68bcf..a888538 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/rtree/RTreeSecondaryIndexInsertOperatorTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/rtree/RTreeSecondaryIndexInsertOperatorTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/rtree/RTreeSecondaryIndexScanOperatorTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/rtree/RTreeSecondaryIndexScanOperatorTest.java
index 90bb918..9ec0f7a 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/rtree/RTreeSecondaryIndexScanOperatorTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/rtree/RTreeSecondaryIndexScanOperatorTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/rtree/RTreeSecondaryIndexSearchOperatorTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/rtree/RTreeSecondaryIndexSearchOperatorTest.java
index 5da122c..9613920 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/rtree/RTreeSecondaryIndexSearchOperatorTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/rtree/RTreeSecondaryIndexSearchOperatorTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/rtree/RTreeSecondaryIndexStatsOperatorTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/rtree/RTreeSecondaryIndexStatsOperatorTest.java
index 83be1d9..ab48d39 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/rtree/RTreeSecondaryIndexStatsOperatorTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/am/rtree/RTreeSecondaryIndexStatsOperatorTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/comm/SerializationDeserializationTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/comm/SerializationDeserializationTest.java
index 36da06c..29be04b 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/comm/SerializationDeserializationTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/comm/SerializationDeserializationTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/AbstractIntegrationTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/AbstractIntegrationTest.java
index 89679ae..39fa19b 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/AbstractIntegrationTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/AbstractIntegrationTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/AbstractMultiNCIntegrationTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/AbstractMultiNCIntegrationTest.java
index d97b7db..22ff84e 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/AbstractMultiNCIntegrationTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/AbstractMultiNCIntegrationTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/AggregationTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/AggregationTest.java
index 06751e3..0a5f2c5 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/AggregationTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/AggregationTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -94,7 +94,7 @@
             throws IOException {
 
         ResultSetId rsId = new ResultSetId(1);
-        AbstractSingleActivityOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, true,
+        AbstractSingleActivityOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, true, false,
                 ResultSerializerFactoryProvider.INSTANCE.getResultSerializerFactoryProvider());
         spec.addResultSetId(rsId);
 
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/CountOfCountsTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/CountOfCountsTest.java
index 5008991..906a750 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/CountOfCountsTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/CountOfCountsTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -97,7 +97,7 @@
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, group2, NC1_ID);
 
         ResultSetId rsId = new ResultSetId(1);
-        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, true,
+        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, true, false,
                 ResultSerializerFactoryProvider.INSTANCE.getResultSerializerFactoryProvider());
         spec.addResultSetId(rsId);
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, printer, NC1_ID);
@@ -169,7 +169,7 @@
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, group2, NC1_ID, NC2_ID);
 
         ResultSetId rsId = new ResultSetId(1);
-        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, true,
+        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, true, false,
                 ResultSerializerFactoryProvider.INSTANCE.getResultSerializerFactoryProvider());
         spec.addResultSetId(rsId);
 
@@ -242,7 +242,7 @@
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, group2, NC1_ID, NC2_ID);
 
         ResultSetId rsId = new ResultSetId(1);
-        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, true,
+        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, true, false,
                 ResultSerializerFactoryProvider.INSTANCE.getResultSerializerFactoryProvider());
         spec.addResultSetId(rsId);
 
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/LocalityAwareConnectorTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/LocalityAwareConnectorTest.java
index 93ed2c7..42c823a 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/LocalityAwareConnectorTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/LocalityAwareConnectorTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -205,7 +205,7 @@
             throws IOException {
 
         ResultSetId rsId = new ResultSetId(1);
-        AbstractSingleActivityOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, true,
+        AbstractSingleActivityOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, true,false,
                 ResultSerializerFactoryProvider.INSTANCE.getResultSerializerFactoryProvider());
         spec.addResultSetId(rsId);
 
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/OptimizedSortMergeTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/OptimizedSortMergeTest.java
index ec9be32..380ba29 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/OptimizedSortMergeTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/OptimizedSortMergeTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -80,7 +80,7 @@
         ResultSetId rsId = new ResultSetId(1);
         spec.addResultSetId(rsId);
 
-        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false,
+        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false, false,
                 ResultSerializerFactoryProvider.INSTANCE.getResultSerializerFactoryProvider());
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, printer, NC1_ID);
 
@@ -135,7 +135,7 @@
         ResultSetId rsId = new ResultSetId(1);
         spec.addResultSetId(rsId);
 
-        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false,
+        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false, false,
                 ResultSerializerFactoryProvider.INSTANCE.getResultSerializerFactoryProvider());
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, printer, NC1_ID);
 
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/ScanPrintTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/ScanPrintTest.java
index 961f780..c42dc75 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/ScanPrintTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/ScanPrintTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -66,7 +66,7 @@
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, csvScanner, NC2_ID, NC1_ID);
 
         ResultSetId rsId = new ResultSetId(1);
-        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, true,
+        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, true, false,
                 ResultSerializerFactoryProvider.INSTANCE.getResultSerializerFactoryProvider());
         spec.addResultSetId(rsId);
 
@@ -102,7 +102,7 @@
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, ordScanner, NC1_ID);
 
         ResultSetId rsId = new ResultSetId(1);
-        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, true,
+        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, true, false,
                 ResultSerializerFactoryProvider.INSTANCE.getResultSerializerFactoryProvider());
         spec.addResultSetId(rsId);
 
@@ -141,7 +141,7 @@
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, ordScanner, NC1_ID);
 
         ResultSetId rsId = new ResultSetId(1);
-        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, true,
+        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, true, false,
                 ResultSerializerFactoryProvider.INSTANCE.getResultSerializerFactoryProvider());
         spec.addResultSetId(rsId);
 
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/SortMergeTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/SortMergeTest.java
index 0da93f2..48db176 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/SortMergeTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/SortMergeTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -78,7 +78,7 @@
         ResultSetId rsId = new ResultSetId(1);
         spec.addResultSetId(rsId);
 
-        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, true,
+        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, true, false,
                 ResultSerializerFactoryProvider.INSTANCE.getResultSerializerFactoryProvider());
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, printer, NC1_ID);
 
@@ -125,7 +125,7 @@
         ResultSetId rsId = new ResultSetId(1);
         spec.addResultSetId(rsId);
 
-        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false,
+        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false, false,
                 ResultSerializerFactoryProvider.INSTANCE.getResultSerializerFactoryProvider());
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, printer, NC1_ID);
 
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/SplitOperatorTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/SplitOperatorTest.java
index 6040748..8446b83 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/SplitOperatorTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/SplitOperatorTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -90,7 +90,7 @@
             ResultSetId rsId = new ResultSetId(i);
             spec.addResultSetId(rsId);
 
-            outputOp[i] = new ResultWriterOperatorDescriptor(spec, rsId, true,
+            outputOp[i] = new ResultWriterOperatorDescriptor(spec, rsId, true, false,
                     ResultSerializerFactoryProvider.INSTANCE.getResultSerializerFactoryProvider());
             PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, outputOp[i], locations);
         }
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/TPCHCustomerOptimizedHybridHashJoinTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/TPCHCustomerOptimizedHybridHashJoinTest.java
index b7fd241..024c9b6 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/TPCHCustomerOptimizedHybridHashJoinTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/TPCHCustomerOptimizedHybridHashJoinTest.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.tests.integration;
 
 import java.io.File;
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/TPCHCustomerOrderHashJoinTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/TPCHCustomerOrderHashJoinTest.java
index 9b35867..734c3da 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/TPCHCustomerOrderHashJoinTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/TPCHCustomerOrderHashJoinTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -128,7 +128,7 @@
         ResultSetId rsId = new ResultSetId(1);
         spec.addResultSetId(rsId);
 
-        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false,
+        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false, false,
                 ResultSerializerFactoryProvider.INSTANCE.getResultSerializerFactoryProvider());
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, printer, NC1_ID);
 
@@ -211,7 +211,7 @@
         ResultSetId rsId = new ResultSetId(1);
         spec.addResultSetId(rsId);
 
-        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false,
+        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false, false,
                 ResultSerializerFactoryProvider.INSTANCE.getResultSerializerFactoryProvider());
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, printer, NC1_ID);
 
@@ -294,7 +294,7 @@
         ResultSetId rsId = new ResultSetId(1);
         spec.addResultSetId(rsId);
 
-        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false,
+        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false, false,
                 ResultSerializerFactoryProvider.INSTANCE.getResultSerializerFactoryProvider());
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, printer, NC1_ID);
 
@@ -378,7 +378,7 @@
         ResultSetId rsId = new ResultSetId(1);
         spec.addResultSetId(rsId);
 
-        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false,
+        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false, false,
                 ResultSerializerFactoryProvider.INSTANCE.getResultSerializerFactoryProvider());
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, printer, NC1_ID);
 
@@ -466,7 +466,7 @@
         ResultSetId rsId = new ResultSetId(1);
         spec.addResultSetId(rsId);
 
-        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false,
+        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false, false,
                 ResultSerializerFactoryProvider.INSTANCE.getResultSerializerFactoryProvider());
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, printer, NC1_ID);
 
@@ -554,7 +554,7 @@
         ResultSetId rsId = new ResultSetId(1);
         spec.addResultSetId(rsId);
 
-        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false,
+        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false, false,
                 ResultSerializerFactoryProvider.INSTANCE.getResultSerializerFactoryProvider());
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, printer, NC1_ID);
 
@@ -635,7 +635,7 @@
         ResultSetId rsId = new ResultSetId(1);
         spec.addResultSetId(rsId);
 
-        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false,
+        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false, false,
                 ResultSerializerFactoryProvider.INSTANCE.getResultSerializerFactoryProvider());
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, printer, NC1_ID);
 
@@ -726,7 +726,7 @@
         ResultSetId rsId = new ResultSetId(1);
         spec.addResultSetId(rsId);
 
-        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false,
+        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false, false,
                 ResultSerializerFactoryProvider.INSTANCE.getResultSerializerFactoryProvider());
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, printer, NC1_ID);
 
@@ -817,7 +817,7 @@
         ResultSetId rsId = new ResultSetId(1);
         spec.addResultSetId(rsId);
 
-        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false,
+        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false, false,
                 ResultSerializerFactoryProvider.INSTANCE.getResultSerializerFactoryProvider());
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, printer, NC1_ID);
 
@@ -904,7 +904,7 @@
         ResultSetId rsId = new ResultSetId(1);
         spec.addResultSetId(rsId);
 
-        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false,
+        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false, false,
                 ResultSerializerFactoryProvider.INSTANCE.getResultSerializerFactoryProvider());
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, printer, NC1_ID);
 
@@ -997,7 +997,7 @@
         ResultSetId rsId = new ResultSetId(1);
         spec.addResultSetId(rsId);
 
-        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false,
+        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false, false,
                 ResultSerializerFactoryProvider.INSTANCE.getResultSerializerFactoryProvider());
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, printer, NC1_ID);
 
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/TPCHCustomerOrderNestedLoopJoinTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/TPCHCustomerOrderNestedLoopJoinTest.java
index 99f2d18..daab141 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/TPCHCustomerOrderNestedLoopJoinTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/TPCHCustomerOrderNestedLoopJoinTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -176,7 +176,7 @@
         ResultSetId rsId = new ResultSetId(1);
         spec.addResultSetId(rsId);
 
-        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false,
+        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false, false,
                 ResultSerializerFactoryProvider.INSTANCE.getResultSerializerFactoryProvider());
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, printer, NC1_ID);
 
@@ -253,7 +253,7 @@
         ResultSetId rsId = new ResultSetId(1);
         spec.addResultSetId(rsId);
 
-        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false,
+        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false, false,
                 ResultSerializerFactoryProvider.INSTANCE.getResultSerializerFactoryProvider());
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, printer, NC1_ID);
 
@@ -330,7 +330,7 @@
         ResultSetId rsId = new ResultSetId(1);
         spec.addResultSetId(rsId);
 
-        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false,
+        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false, false,
                 ResultSerializerFactoryProvider.INSTANCE.getResultSerializerFactoryProvider());
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, printer, NC1_ID);
 
@@ -412,7 +412,7 @@
         ResultSetId rsId = new ResultSetId(1);
         spec.addResultSetId(rsId);
 
-        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false,
+        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false, false,
                 ResultSerializerFactoryProvider.INSTANCE.getResultSerializerFactoryProvider());
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, printer, NC1_ID);
 
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/UnionTest.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/UnionTest.java
index 5b323e6..ef31508 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/UnionTest.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/integration/UnionTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -70,7 +70,7 @@
         ResultSetId rsId = new ResultSetId(1);
         spec.addResultSetId(rsId);
 
-        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false,
+        IOperatorDescriptor printer = new ResultWriterOperatorDescriptor(spec, rsId, false, false,
                 ResultSerializerFactoryProvider.INSTANCE.getResultSerializerFactoryProvider());
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, printer, NC2_ID, NC1_ID);
 
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/util/NoopNullWriterFactory.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/util/NoopNullWriterFactory.java
index d119509..cc6c811 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/util/NoopNullWriterFactory.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/util/NoopNullWriterFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.tests.util;
 
 import java.io.DataOutput;
diff --git a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/util/ResultSerializerFactoryProvider.java b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/util/ResultSerializerFactoryProvider.java
index 19c4475..fd899cb 100644
--- a/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/util/ResultSerializerFactoryProvider.java
+++ b/hyracks/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/util/ResultSerializerFactoryProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/pom.xml b/hyracks/hyracks-examples/pom.xml
index 6159b49..6296f5e 100644
--- a/hyracks/hyracks-examples/pom.xml
+++ b/hyracks/hyracks-examples/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-examples</artifactId>
@@ -7,7 +21,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <modules>
diff --git a/hyracks/hyracks-examples/text-example/pom.xml b/hyracks/hyracks-examples/text-example/pom.xml
index 54aa3be..2359f96 100644
--- a/hyracks/hyracks-examples/text-example/pom.xml
+++ b/hyracks/hyracks-examples/text-example/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>text-example</artifactId>
@@ -7,7 +21,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks-examples</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <modules>
diff --git a/hyracks/hyracks-examples/text-example/textclient/pom.xml b/hyracks/hyracks-examples/text-example/textclient/pom.xml
index b2b7dbb..0cd3d6c 100644
--- a/hyracks/hyracks-examples/text-example/textclient/pom.xml
+++ b/hyracks/hyracks-examples/text-example/textclient/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>textclient</artifactId>
@@ -6,20 +20,20 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>text-example</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <dependencies>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-dataflow-std</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>texthelper</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
diff --git a/hyracks/hyracks-examples/text-example/textclient/src/main/assembly/binary-assembly.xml b/hyracks/hyracks-examples/text-example/textclient/src/main/assembly/binary-assembly.xml
index 0500499..e722e72 100644
--- a/hyracks/hyracks-examples/text-example/textclient/src/main/assembly/binary-assembly.xml
+++ b/hyracks/hyracks-examples/text-example/textclient/src/main/assembly/binary-assembly.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <assembly>
   <id>binary-assembly</id>
   <formats>
diff --git a/hyracks/hyracks-examples/text-example/textclient/src/main/java/edu/uci/ics/hyracks/examples/text/client/ExternalGroupClient.java b/hyracks/hyracks-examples/text-example/textclient/src/main/java/edu/uci/ics/hyracks/examples/text/client/ExternalGroupClient.java
index 18813a7..be8e986 100644
--- a/hyracks/hyracks-examples/text-example/textclient/src/main/java/edu/uci/ics/hyracks/examples/text/client/ExternalGroupClient.java
+++ b/hyracks/hyracks-examples/text-example/textclient/src/main/java/edu/uci/ics/hyracks/examples/text/client/ExternalGroupClient.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/text-example/textclient/src/main/java/edu/uci/ics/hyracks/examples/text/client/WordCountMain.java b/hyracks/hyracks-examples/text-example/textclient/src/main/java/edu/uci/ics/hyracks/examples/text/client/WordCountMain.java
index 5b6fad9..d342082 100644
--- a/hyracks/hyracks-examples/text-example/textclient/src/main/java/edu/uci/ics/hyracks/examples/text/client/WordCountMain.java
+++ b/hyracks/hyracks-examples/text-example/textclient/src/main/java/edu/uci/ics/hyracks/examples/text/client/WordCountMain.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/text-example/texthelper/pom.xml b/hyracks/hyracks-examples/text-example/texthelper/pom.xml
index c20ba88..e02138f 100644
--- a/hyracks/hyracks-examples/text-example/texthelper/pom.xml
+++ b/hyracks/hyracks-examples/text-example/texthelper/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>texthelper</artifactId>
@@ -6,26 +20,26 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>text-example</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <dependencies>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-dataflow-std</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-api</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-data-std</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   	</dependency>
   </dependencies>
   <build>
diff --git a/hyracks/hyracks-examples/text-example/texthelper/src/main/java/edu/uci/ics/hyracks/examples/text/WordTupleParserFactory.java b/hyracks/hyracks-examples/text-example/texthelper/src/main/java/edu/uci/ics/hyracks/examples/text/WordTupleParserFactory.java
index cda1380..45b24c5 100644
--- a/hyracks/hyracks-examples/text-example/texthelper/src/main/java/edu/uci/ics/hyracks/examples/text/WordTupleParserFactory.java
+++ b/hyracks/hyracks-examples/text-example/texthelper/src/main/java/edu/uci/ics/hyracks/examples/text/WordTupleParserFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.examples.text;
 
 import java.io.DataOutput;
diff --git a/hyracks/hyracks-examples/text-example/textserver/pom.xml b/hyracks/hyracks-examples/text-example/textserver/pom.xml
index 1daca96..aad72bd 100644
--- a/hyracks/hyracks-examples/text-example/textserver/pom.xml
+++ b/hyracks/hyracks-examples/text-example/textserver/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <groupId>edu.uci.ics.hyracks.examples.text</groupId>
@@ -7,7 +21,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>text-example</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -59,7 +73,7 @@
       <plugin>
       	<groupId>edu.uci.ics.hyracks</groupId>
       	<artifactId>hyracks-virtualcluster-maven-plugin</artifactId>
-      	<version>0.2.6-SNAPSHOT</version>
+      	<version>0.2.7-SNAPSHOT</version>
         <configuration>
           <hyracksServerHome>${basedir}/target/textserver-${project.version}-binary-assembly</hyracksServerHome>
           <jvmOptions>${jvm.extraargs}</jvmOptions>
@@ -134,27 +148,27 @@
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>texthelper</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-control-cc</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-control-nc</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>textclient</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>test</scope>
   	</dependency>
diff --git a/hyracks/hyracks-examples/text-example/textserver/src/main/assembly/binary-assembly.xml b/hyracks/hyracks-examples/text-example/textserver/src/main/assembly/binary-assembly.xml
index cd598d9..ae362ca 100644
--- a/hyracks/hyracks-examples/text-example/textserver/src/main/assembly/binary-assembly.xml
+++ b/hyracks/hyracks-examples/text-example/textserver/src/main/assembly/binary-assembly.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <assembly>
   <id>binary-assembly</id>
   <formats>
diff --git a/hyracks/hyracks-examples/text-example/textserver/src/test/java/edu/uci/ics/hyracks/examples/text/test/WordCountIT.java b/hyracks/hyracks-examples/text-example/textserver/src/test/java/edu/uci/ics/hyracks/examples/text/test/WordCountIT.java
index 76af72d..12ea725 100644
--- a/hyracks/hyracks-examples/text-example/textserver/src/test/java/edu/uci/ics/hyracks/examples/text/test/WordCountIT.java
+++ b/hyracks/hyracks-examples/text-example/textserver/src/test/java/edu/uci/ics/hyracks/examples/text/test/WordCountIT.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.examples.text.test;
 
 import java.io.File;
diff --git a/hyracks/hyracks-examples/tpch-example/pom.xml b/hyracks/hyracks-examples/tpch-example/pom.xml
index 68577a0..129e38f 100644
--- a/hyracks/hyracks-examples/tpch-example/pom.xml
+++ b/hyracks/hyracks-examples/tpch-example/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>tpch-example</artifactId>
@@ -7,7 +21,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks-examples</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <modules>
diff --git a/hyracks/hyracks-examples/tpch-example/tpchclient/pom.xml b/hyracks/hyracks-examples/tpch-example/tpchclient/pom.xml
index 127d0f1..1123fe4 100644
--- a/hyracks/hyracks-examples/tpch-example/tpchclient/pom.xml
+++ b/hyracks/hyracks-examples/tpch-example/tpchclient/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>tpchclient</artifactId>
@@ -5,20 +19,20 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>tpch-example</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <dependencies>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-dataflow-std</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-data-std</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   	</dependency>
   </dependencies>
   <build>
diff --git a/hyracks/hyracks-examples/tpch-example/tpchclient/src/main/java/edu/uci/ics/hyracks/examples/tpch/client/Main.java b/hyracks/hyracks-examples/tpch-example/tpchclient/src/main/java/edu/uci/ics/hyracks/examples/tpch/client/Main.java
index 8dab4de..6017e8f 100644
--- a/hyracks/hyracks-examples/tpch-example/tpchclient/src/main/java/edu/uci/ics/hyracks/examples/tpch/client/Main.java
+++ b/hyracks/hyracks-examples/tpch-example/tpchclient/src/main/java/edu/uci/ics/hyracks/examples/tpch/client/Main.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-examples/tpch-example/tpchserver/pom.xml b/hyracks/hyracks-examples/tpch-example/tpchserver/pom.xml
index fb45c3b..d58f28c 100644
--- a/hyracks/hyracks-examples/tpch-example/tpchserver/pom.xml
+++ b/hyracks/hyracks-examples/tpch-example/tpchserver/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <groupId>edu.uci.ics.hyracks.examples.tpch</groupId>
@@ -7,7 +21,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>tpch-example</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -62,25 +76,25 @@
     <dependency>
         <groupId>edu.uci.ics.hyracks</groupId>
         <artifactId>hyracks-dataflow-std</artifactId>
-        <version>0.2.6-SNAPSHOT</version>
+        <version>0.2.7-SNAPSHOT</version>
         <scope>compile</scope>
     </dependency>
     <dependency>
     	<groupId>edu.uci.ics.hyracks</groupId>
     	<artifactId>hyracks-data-std</artifactId>
-    	<version>0.2.6-SNAPSHOT</version>
+    	<version>0.2.7-SNAPSHOT</version>
     </dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-control-cc</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-control-nc</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
diff --git a/hyracks/hyracks-examples/tpch-example/tpchserver/src/main/assembly/binary-assembly.xml b/hyracks/hyracks-examples/tpch-example/tpchserver/src/main/assembly/binary-assembly.xml
index cd598d9..ae362ca 100644
--- a/hyracks/hyracks-examples/tpch-example/tpchserver/src/main/assembly/binary-assembly.xml
+++ b/hyracks/hyracks-examples/tpch-example/tpchserver/src/main/assembly/binary-assembly.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <assembly>
   <id>binary-assembly</id>
   <formats>
diff --git a/hyracks/hyracks-hadoop-compat/pom.xml b/hyracks/hyracks-hadoop-compat/pom.xml
index f9b1b3a..0a34b34 100644
--- a/hyracks/hyracks-hadoop-compat/pom.xml
+++ b/hyracks/hyracks-hadoop-compat/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-hadoop-compat</artifactId>
@@ -6,7 +20,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -80,7 +94,7 @@
     <dependency>
     	<groupId>edu.uci.ics.hyracks</groupId>
     	<artifactId>hyracks-dataflow-hadoop</artifactId>
-    	<version>0.2.6-SNAPSHOT</version>
+    	<version>0.2.7-SNAPSHOT</version>
     	<type>jar</type>
     	<scope>compile</scope>
     </dependency>
diff --git a/hyracks/hyracks-hadoop-compat/src/main/assembly/binary-assembly.xml b/hyracks/hyracks-hadoop-compat/src/main/assembly/binary-assembly.xml
index 0500499..e722e72 100644
--- a/hyracks/hyracks-hadoop-compat/src/main/assembly/binary-assembly.xml
+++ b/hyracks/hyracks-hadoop-compat/src/main/assembly/binary-assembly.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <assembly>
   <id>binary-assembly</id>
   <formats>
diff --git a/hyracks/hyracks-hadoop-compat/src/main/java/edu/uci/ics/hyracks/hadoop/compat/client/HyracksClient.java b/hyracks/hyracks-hadoop-compat/src/main/java/edu/uci/ics/hyracks/hadoop/compat/client/HyracksClient.java
index 89cc1e5..f42fa9a 100644
--- a/hyracks/hyracks-hadoop-compat/src/main/java/edu/uci/ics/hyracks/hadoop/compat/client/HyracksClient.java
+++ b/hyracks/hyracks-hadoop-compat/src/main/java/edu/uci/ics/hyracks/hadoop/compat/client/HyracksClient.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.hadoop.compat.client;
 
 import java.util.EnumSet;
diff --git a/hyracks/hyracks-hadoop-compat/src/main/java/edu/uci/ics/hyracks/hadoop/compat/client/HyracksRunningJob.java b/hyracks/hyracks-hadoop-compat/src/main/java/edu/uci/ics/hyracks/hadoop/compat/client/HyracksRunningJob.java
index 776fd54..4766cb9 100644
--- a/hyracks/hyracks-hadoop-compat/src/main/java/edu/uci/ics/hyracks/hadoop/compat/client/HyracksRunningJob.java
+++ b/hyracks/hyracks-hadoop-compat/src/main/java/edu/uci/ics/hyracks/hadoop/compat/client/HyracksRunningJob.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.hadoop.compat.client;
 
 import java.io.IOException;
diff --git a/hyracks/hyracks-hadoop-compat/src/main/java/edu/uci/ics/hyracks/hadoop/compat/driver/CompatibilityLayer.java b/hyracks/hyracks-hadoop-compat/src/main/java/edu/uci/ics/hyracks/hadoop/compat/driver/CompatibilityLayer.java
index bf09bb0..b7d83c9 100644
--- a/hyracks/hyracks-hadoop-compat/src/main/java/edu/uci/ics/hyracks/hadoop/compat/driver/CompatibilityLayer.java
+++ b/hyracks/hyracks-hadoop-compat/src/main/java/edu/uci/ics/hyracks/hadoop/compat/driver/CompatibilityLayer.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.hadoop.compat.driver;
 
 import java.io.IOException;
diff --git a/hyracks/hyracks-hadoop-compat/src/main/java/edu/uci/ics/hyracks/hadoop/compat/util/CompatibilityConfig.java b/hyracks/hyracks-hadoop-compat/src/main/java/edu/uci/ics/hyracks/hadoop/compat/util/CompatibilityConfig.java
index 6d94bc7..328d6bd 100644
--- a/hyracks/hyracks-hadoop-compat/src/main/java/edu/uci/ics/hyracks/hadoop/compat/util/CompatibilityConfig.java
+++ b/hyracks/hyracks-hadoop-compat/src/main/java/edu/uci/ics/hyracks/hadoop/compat/util/CompatibilityConfig.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.hadoop.compat.util;
 
 import org.kohsuke.args4j.Option;
diff --git a/hyracks/hyracks-hadoop-compat/src/main/java/edu/uci/ics/hyracks/hadoop/compat/util/ConfigurationConstants.java b/hyracks/hyracks-hadoop-compat/src/main/java/edu/uci/ics/hyracks/hadoop/compat/util/ConfigurationConstants.java
index 281e58b..c818621 100644
--- a/hyracks/hyracks-hadoop-compat/src/main/java/edu/uci/ics/hyracks/hadoop/compat/util/ConfigurationConstants.java
+++ b/hyracks/hyracks-hadoop-compat/src/main/java/edu/uci/ics/hyracks/hadoop/compat/util/ConfigurationConstants.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.hadoop.compat.util;
 
 public class ConfigurationConstants {
diff --git a/hyracks/hyracks-hadoop-compat/src/main/java/edu/uci/ics/hyracks/hadoop/compat/util/DCacheHandler.java b/hyracks/hyracks-hadoop-compat/src/main/java/edu/uci/ics/hyracks/hadoop/compat/util/DCacheHandler.java
index 045cd76..137e1f9 100644
--- a/hyracks/hyracks-hadoop-compat/src/main/java/edu/uci/ics/hyracks/hadoop/compat/util/DCacheHandler.java
+++ b/hyracks/hyracks-hadoop-compat/src/main/java/edu/uci/ics/hyracks/hadoop/compat/util/DCacheHandler.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.hadoop.compat.util;
 
 import java.io.IOException;
diff --git a/hyracks/hyracks-hadoop-compat/src/main/java/edu/uci/ics/hyracks/hadoop/compat/util/HadoopAdapter.java b/hyracks/hyracks-hadoop-compat/src/main/java/edu/uci/ics/hyracks/hadoop/compat/util/HadoopAdapter.java
index 1d6369a..3cab22d 100644
--- a/hyracks/hyracks-hadoop-compat/src/main/java/edu/uci/ics/hyracks/hadoop/compat/util/HadoopAdapter.java
+++ b/hyracks/hyracks-hadoop-compat/src/main/java/edu/uci/ics/hyracks/hadoop/compat/util/HadoopAdapter.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.hadoop.compat.util;
 
 import java.io.IOException;
diff --git a/hyracks/hyracks-hadoop-compat/src/main/java/edu/uci/ics/hyracks/hadoop/compat/util/Utilities.java b/hyracks/hyracks-hadoop-compat/src/main/java/edu/uci/ics/hyracks/hadoop/compat/util/Utilities.java
index 4110f04..d80f55d 100644
--- a/hyracks/hyracks-hadoop-compat/src/main/java/edu/uci/ics/hyracks/hadoop/compat/util/Utilities.java
+++ b/hyracks/hyracks-hadoop-compat/src/main/java/edu/uci/ics/hyracks/hadoop/compat/util/Utilities.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.hadoop.compat.util;
 
 import java.io.BufferedReader;
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-0.20.2/pom.xml b/hyracks/hyracks-hdfs/hyracks-hdfs-0.20.2/pom.xml
index 39f064f..b7a8676 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-0.20.2/pom.xml
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-0.20.2/pom.xml
@@ -1,4 +1,18 @@
 <?xml version="1.0"?>
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>hyracks-hdfs-0.20.2</artifactId>
@@ -6,7 +20,7 @@
 	<parent>
 		<artifactId>hyracks-hdfs</artifactId>
 		<groupId>edu.uci.ics.hyracks</groupId>
-		<version>0.2.6-SNAPSHOT</version>
+		<version>0.2.7-SNAPSHOT</version>
 	</parent>
 
 	<build>
@@ -98,7 +112,7 @@
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-api</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-0.20.2/src/main/java/edu/uci/ics/hyracks/hdfs/ContextFactory.java b/hyracks/hyracks-hdfs/hyracks-hdfs-0.20.2/src/main/java/edu/uci/ics/hyracks/hdfs/ContextFactory.java
index 16ce76b..933e717 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-0.20.2/src/main/java/edu/uci/ics/hyracks/hdfs/ContextFactory.java
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-0.20.2/src/main/java/edu/uci/ics/hyracks/hdfs/ContextFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.hdfs;
 
 import org.apache.hadoop.conf.Configuration;
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-0.20.2/src/main/java/edu/uci/ics/hyracks/hdfs/MiniDFSClusterFactory.java b/hyracks/hyracks-hdfs/hyracks-hdfs-0.20.2/src/main/java/edu/uci/ics/hyracks/hdfs/MiniDFSClusterFactory.java
index 9133d35..b510748 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-0.20.2/src/main/java/edu/uci/ics/hyracks/hdfs/MiniDFSClusterFactory.java
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-0.20.2/src/main/java/edu/uci/ics/hyracks/hdfs/MiniDFSClusterFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.hdfs;
 
 import org.apache.hadoop.conf.Configuration;
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-0.23.1/pom.xml b/hyracks/hyracks-hdfs/hyracks-hdfs-0.23.1/pom.xml
index fd8b1c5..34400b6 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-0.23.1/pom.xml
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-0.23.1/pom.xml
@@ -1,4 +1,18 @@
 <?xml version="1.0"?>
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>hyracks-hdfs-0.23.1</artifactId>
@@ -6,7 +20,7 @@
 	<parent>
 		<artifactId>hyracks-hdfs</artifactId>
 		<groupId>edu.uci.ics.hyracks</groupId>
-		<version>0.2.6-SNAPSHOT</version>
+		<version>0.2.7-SNAPSHOT</version>
 	</parent>
 	<build>
 		<plugins>
@@ -202,7 +216,7 @@
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-api</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-0.23.1/src/main/java/edu/uci/ics/hyracks/hdfs/ContextFactory.java b/hyracks/hyracks-hdfs/hyracks-hdfs-0.23.1/src/main/java/edu/uci/ics/hyracks/hdfs/ContextFactory.java
index ddcce64..f6fa060 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-0.23.1/src/main/java/edu/uci/ics/hyracks/hdfs/ContextFactory.java
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-0.23.1/src/main/java/edu/uci/ics/hyracks/hdfs/ContextFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.hdfs;
 
 import org.apache.hadoop.conf.Configuration;
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-0.23.1/src/main/java/edu/uci/ics/hyracks/hdfs/MiniDFSClusterFactory.java b/hyracks/hyracks-hdfs/hyracks-hdfs-0.23.1/src/main/java/edu/uci/ics/hyracks/hdfs/MiniDFSClusterFactory.java
index ded75f1..28b6bc9 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-0.23.1/src/main/java/edu/uci/ics/hyracks/hdfs/MiniDFSClusterFactory.java
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-0.23.1/src/main/java/edu/uci/ics/hyracks/hdfs/MiniDFSClusterFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.hdfs;
 
 import org.apache.hadoop.conf.Configuration;
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/pom.xml b/hyracks/hyracks-hdfs/hyracks-hdfs-core/pom.xml
index 87875f9..b8453dd 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/pom.xml
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/pom.xml
@@ -1,4 +1,18 @@
 <?xml version="1.0"?>
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>hyracks-hdfs-core</artifactId>
@@ -6,7 +20,7 @@
 	<parent>
 		<artifactId>hyracks-hdfs</artifactId>
 		<groupId>edu.uci.ics.hyracks</groupId>
-		<version>0.2.6-SNAPSHOT</version>
+		<version>0.2.7-SNAPSHOT</version>
 	</parent>
 
 	<build>
@@ -178,31 +192,31 @@
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-api</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-dataflow-std</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-dataflow-common</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-control-cc</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<scope>test</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-control-nc</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<scope>test</scope>
 		</dependency>
 		<dependency>
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/api/IKeyValueParser.java b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/api/IKeyValueParser.java
index 5d35ec5..1852a6f 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/api/IKeyValueParser.java
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/api/IKeyValueParser.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/api/IKeyValueParserFactory.java b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/api/IKeyValueParserFactory.java
index 7d6f868..157228e 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/api/IKeyValueParserFactory.java
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/api/IKeyValueParserFactory.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/api/INcCollection.java b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/api/INcCollection.java
index c51c1dd..1b378cb 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/api/INcCollection.java
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/api/INcCollection.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.hdfs.api;
 
 import org.apache.hadoop.mapred.InputSplit;
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/api/INcCollectionBuilder.java b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/api/INcCollectionBuilder.java
index ef3ff23..7afa94c 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/api/INcCollectionBuilder.java
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/api/INcCollectionBuilder.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.hdfs.api;
 
 import java.util.List;
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/api/ITupleWriter.java b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/api/ITupleWriter.java
index 8e85627..85c560e 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/api/ITupleWriter.java
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/api/ITupleWriter.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/api/ITupleWriterFactory.java b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/api/ITupleWriterFactory.java
index 9a025c2..674873d 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/api/ITupleWriterFactory.java
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/api/ITupleWriterFactory.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/ConfFactory.java b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/ConfFactory.java
index 4fa0164..689cabf 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/ConfFactory.java
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/ConfFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.hdfs.dataflow;
 
 import java.io.ByteArrayInputStream;
@@ -27,7 +41,7 @@
         }
     }
 
-    public JobConf getConf() throws HyracksDataException {
+    public synchronized JobConf getConf() throws HyracksDataException {
         try {
             JobConf conf = new JobConf();
             DataInputStream dis = new DataInputStream(new ByteArrayInputStream(confBytes));
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/HDFSReadOperatorDescriptor.java b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/HDFSReadOperatorDescriptor.java
index f49688b..2cff534 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/HDFSReadOperatorDescriptor.java
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/HDFSReadOperatorDescriptor.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/HDFSWriteOperatorDescriptor.java b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/HDFSWriteOperatorDescriptor.java
index 3ce6b2a..432849b 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/HDFSWriteOperatorDescriptor.java
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/HDFSWriteOperatorDescriptor.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/InputSplitsFactory.java b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/InputSplitsFactory.java
index 147e872..0890847 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/InputSplitsFactory.java
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/InputSplitsFactory.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/lib/RawBinaryComparatorFactory.java b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/lib/RawBinaryComparatorFactory.java
index 90c5977..f47be2e 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/lib/RawBinaryComparatorFactory.java
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/lib/RawBinaryComparatorFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.hdfs.lib;
 
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator;
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/lib/RawBinaryHashFunctionFactory.java b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/lib/RawBinaryHashFunctionFactory.java
index 7895fec..f5b0377 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/lib/RawBinaryHashFunctionFactory.java
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/lib/RawBinaryHashFunctionFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.hdfs.lib;
 
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunction;
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/lib/TextKeyValueParserFactory.java b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/lib/TextKeyValueParserFactory.java
index 21e4a3f..fbac95b 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/lib/TextKeyValueParserFactory.java
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/lib/TextKeyValueParserFactory.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/lib/TextTupleWriterFactory.java b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/lib/TextTupleWriterFactory.java
index 0da14e5..92a427e 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/lib/TextTupleWriterFactory.java
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/lib/TextTupleWriterFactory.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/scheduler/IPProximityNcCollectionBuilder.java b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/scheduler/IPProximityNcCollectionBuilder.java
index 320b48b..1f3a167 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/scheduler/IPProximityNcCollectionBuilder.java
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/scheduler/IPProximityNcCollectionBuilder.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.hdfs.scheduler;
 
 import java.net.InetAddress;
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/scheduler/RackAwareNcCollectionBuilder.java b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/scheduler/RackAwareNcCollectionBuilder.java
index fa5e7ae..8c5c78a 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/scheduler/RackAwareNcCollectionBuilder.java
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/scheduler/RackAwareNcCollectionBuilder.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.hdfs.scheduler;
 
 import java.net.InetAddress;
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/scheduler/Scheduler.java b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/scheduler/Scheduler.java
index 3f7997b..608b76f 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/scheduler/Scheduler.java
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/scheduler/Scheduler.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs2/dataflow/ConfFactory.java b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs2/dataflow/ConfFactory.java
index d843d27..73428ad 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs2/dataflow/ConfFactory.java
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs2/dataflow/ConfFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.hdfs2.dataflow;
 
 import java.io.ByteArrayInputStream;
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs2/dataflow/FileSplitsFactory.java b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs2/dataflow/FileSplitsFactory.java
index 14dc70c..0917078 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs2/dataflow/FileSplitsFactory.java
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs2/dataflow/FileSplitsFactory.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs2/dataflow/HDFSReadOperatorDescriptor.java b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs2/dataflow/HDFSReadOperatorDescriptor.java
index 8b58ecd..3f01d77 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs2/dataflow/HDFSReadOperatorDescriptor.java
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs2/dataflow/HDFSReadOperatorDescriptor.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs2/dataflow/HDFSWriteOperatorDescriptor.java b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs2/dataflow/HDFSWriteOperatorDescriptor.java
index c1c227c..77b8c7e 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs2/dataflow/HDFSWriteOperatorDescriptor.java
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs2/dataflow/HDFSWriteOperatorDescriptor.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs2/scheduler/Scheduler.java b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs2/scheduler/Scheduler.java
index cde187d..75553e1 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs2/scheduler/Scheduler.java
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs2/scheduler/Scheduler.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs2/scheduler/WrappedFileSplit.java b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs2/scheduler/WrappedFileSplit.java
index 1deb469..fe13ced 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs2/scheduler/WrappedFileSplit.java
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs2/scheduler/WrappedFileSplit.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.hdfs2.scheduler;
 
 import java.io.DataInput;
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/java/edu/uci/ics/hyracks/hdfs/dataflow/DataflowTest.java b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/java/edu/uci/ics/hyracks/hdfs/dataflow/DataflowTest.java
index affe1347..c61c15b 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/java/edu/uci/ics/hyracks/hdfs/dataflow/DataflowTest.java
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/java/edu/uci/ics/hyracks/hdfs/dataflow/DataflowTest.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/java/edu/uci/ics/hyracks/hdfs/scheduler/SchedulerTest.java b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/java/edu/uci/ics/hyracks/hdfs/scheduler/SchedulerTest.java
index 1f394a9..ba12d9c 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/java/edu/uci/ics/hyracks/hdfs/scheduler/SchedulerTest.java
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/java/edu/uci/ics/hyracks/hdfs/scheduler/SchedulerTest.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/java/edu/uci/ics/hyracks/hdfs/utils/HyracksUtils.java b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/java/edu/uci/ics/hyracks/hdfs/utils/HyracksUtils.java
index bdff2fd..4f1fecf 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/java/edu/uci/ics/hyracks/hdfs/utils/HyracksUtils.java
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/java/edu/uci/ics/hyracks/hdfs/utils/HyracksUtils.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/java/edu/uci/ics/hyracks/hdfs/utils/TestUtils.java b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/java/edu/uci/ics/hyracks/hdfs/utils/TestUtils.java
index 3826688..9d08bdb 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/java/edu/uci/ics/hyracks/hdfs/utils/TestUtils.java
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/java/edu/uci/ics/hyracks/hdfs/utils/TestUtils.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/java/edu/uci/ics/hyracks/hdfs2/dataflow/DataflowTest.java b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/java/edu/uci/ics/hyracks/hdfs2/dataflow/DataflowTest.java
index c2892e9..3e43fb1 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/java/edu/uci/ics/hyracks/hdfs2/dataflow/DataflowTest.java
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/java/edu/uci/ics/hyracks/hdfs2/dataflow/DataflowTest.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/java/edu/uci/ics/hyracks/hdfs2/scheduler/SchedulerTest.java b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/java/edu/uci/ics/hyracks/hdfs2/scheduler/SchedulerTest.java
index 442aeae..74f1b43 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/java/edu/uci/ics/hyracks/hdfs2/scheduler/SchedulerTest.java
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/java/edu/uci/ics/hyracks/hdfs2/scheduler/SchedulerTest.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/hadoop/conf/core-site.xml b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/hadoop/conf/core-site.xml
index 47dfac5..5b1023c 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/hadoop/conf/core-site.xml
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/hadoop/conf/core-site.xml
@@ -1,4 +1,18 @@
 <?xml version="1.0"?>
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
 
 <!-- Put site-specific property overrides in this file. -->
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/hadoop/conf/hdfs-site.xml b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/hadoop/conf/hdfs-site.xml
index 8d29b1d..bff9a3e 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/hadoop/conf/hdfs-site.xml
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/hadoop/conf/hdfs-site.xml
@@ -1,4 +1,18 @@
 <?xml version="1.0"?>
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
 
 <!-- Put site-specific property overrides in this file. -->
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/hadoop/conf/log4j.properties b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/hadoop/conf/log4j.properties
index d5e6004..0be7ebf 100755
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/hadoop/conf/log4j.properties
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/hadoop/conf/log4j.properties
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 # Define some default values that can be overridden by system properties
 hadoop.root.logger=FATAL,console
 hadoop.log.dir=.
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/hadoop/conf/mapred-site.xml b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/hadoop/conf/mapred-site.xml
index 39b6505..1a7309a 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/hadoop/conf/mapred-site.xml
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/hadoop/conf/mapred-site.xml
@@ -1,4 +1,18 @@
 <?xml version="1.0"?>
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
 
 <!-- Put site-specific property overrides in this file. -->
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/topology.xml b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/topology.xml
index 3a0ac7e..2b6f1b9 100644
--- a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/topology.xml
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/topology.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <cluster-topology>
 	<network-switch name="all">
 		<network-switch name="rack1">
diff --git a/hyracks/hyracks-hdfs/pom.xml b/hyracks/hyracks-hdfs/pom.xml
index b8cb5fe..0035285 100644
--- a/hyracks/hyracks-hdfs/pom.xml
+++ b/hyracks/hyracks-hdfs/pom.xml
@@ -1,4 +1,18 @@
 <?xml version="1.0" encoding="UTF-8"?>
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-hdfs</artifactId>
@@ -8,7 +22,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <modules>
diff --git a/hyracks/hyracks-ipc/pom.xml b/hyracks/hyracks-ipc/pom.xml
index d76aa56..88bb49c 100644
--- a/hyracks/hyracks-ipc/pom.xml
+++ b/hyracks/hyracks-ipc/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-ipc</artifactId>
@@ -5,7 +19,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
diff --git a/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/api/IIPCHandle.java b/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/api/IIPCHandle.java
index 8a3630f..214cc50 100644
--- a/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/api/IIPCHandle.java
+++ b/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/api/IIPCHandle.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/api/IIPCI.java b/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/api/IIPCI.java
index 24ab943..4221c7a 100644
--- a/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/api/IIPCI.java
+++ b/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/api/IIPCI.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/api/IPCPerformanceCounters.java b/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/api/IPCPerformanceCounters.java
index 1873378..80eeb98 100644
--- a/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/api/IPCPerformanceCounters.java
+++ b/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/api/IPCPerformanceCounters.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/api/IPayloadSerializerDeserializer.java b/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/api/IPayloadSerializerDeserializer.java
index 62648ff..8cace63 100644
--- a/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/api/IPayloadSerializerDeserializer.java
+++ b/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/api/IPayloadSerializerDeserializer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/api/IResponseCallback.java b/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/api/IResponseCallback.java
index 7d25f88..83cf2b4 100644
--- a/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/api/IResponseCallback.java
+++ b/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/api/IResponseCallback.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/api/RPCInterface.java b/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/api/RPCInterface.java
index 3340516..155e1ac 100644
--- a/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/api/RPCInterface.java
+++ b/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/api/RPCInterface.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.ipc.api;
 
 import java.util.HashMap;
diff --git a/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/exceptions/IPCException.java b/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/exceptions/IPCException.java
index 9ecf015..1b41493 100644
--- a/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/exceptions/IPCException.java
+++ b/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/exceptions/IPCException.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/impl/HandleState.java b/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/impl/HandleState.java
index 47c3d4a..8a5b979 100644
--- a/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/impl/HandleState.java
+++ b/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/impl/HandleState.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/impl/IPCConnectionManager.java b/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/impl/IPCConnectionManager.java
index 8e42d53..c52dbd8 100644
--- a/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/impl/IPCConnectionManager.java
+++ b/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/impl/IPCConnectionManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/impl/IPCHandle.java b/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/impl/IPCHandle.java
index 06b614d..4908091 100644
--- a/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/impl/IPCHandle.java
+++ b/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/impl/IPCHandle.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/impl/IPCSystem.java b/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/impl/IPCSystem.java
index d7e383d..e32e409 100644
--- a/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/impl/IPCSystem.java
+++ b/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/impl/IPCSystem.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/impl/JavaSerializationBasedPayloadSerializerDeserializer.java b/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/impl/JavaSerializationBasedPayloadSerializerDeserializer.java
index fdf8e92..2bd8571 100644
--- a/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/impl/JavaSerializationBasedPayloadSerializerDeserializer.java
+++ b/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/impl/JavaSerializationBasedPayloadSerializerDeserializer.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.ipc.impl;
 
 import java.io.ByteArrayInputStream;
diff --git a/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/impl/Message.java b/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/impl/Message.java
index 6bb3156..b510815 100644
--- a/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/impl/Message.java
+++ b/hyracks/hyracks-ipc/src/main/java/edu/uci/ics/hyracks/ipc/impl/Message.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-ipc/src/test/java/edu/uci/ics/hyracks/ipc/tests/IPCTest.java b/hyracks/hyracks-ipc/src/test/java/edu/uci/ics/hyracks/ipc/tests/IPCTest.java
index 5b2f660..28b49ab 100644
--- a/hyracks/hyracks-ipc/src/test/java/edu/uci/ics/hyracks/ipc/tests/IPCTest.java
+++ b/hyracks/hyracks-ipc/src/test/java/edu/uci/ics/hyracks/ipc/tests/IPCTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-maven-plugins/hyracks-virtualcluster-maven-plugin/pom.xml b/hyracks/hyracks-maven-plugins/hyracks-virtualcluster-maven-plugin/pom.xml
index 3a84622..df11910 100644
--- a/hyracks/hyracks-maven-plugins/hyracks-virtualcluster-maven-plugin/pom.xml
+++ b/hyracks/hyracks-maven-plugins/hyracks-virtualcluster-maven-plugin/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-virtualcluster-maven-plugin</artifactId>
@@ -7,7 +21,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks-maven-plugins</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
diff --git a/hyracks/hyracks-maven-plugins/hyracks-virtualcluster-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/AbstractHyracksMojo.java b/hyracks/hyracks-maven-plugins/hyracks-virtualcluster-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/AbstractHyracksMojo.java
index f35c78a..cdcf52f 100644
--- a/hyracks/hyracks-maven-plugins/hyracks-virtualcluster-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/AbstractHyracksMojo.java
+++ b/hyracks/hyracks-maven-plugins/hyracks-virtualcluster-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/AbstractHyracksMojo.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-maven-plugins/hyracks-virtualcluster-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/AbstractHyracksServerMojo.java b/hyracks/hyracks-maven-plugins/hyracks-virtualcluster-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/AbstractHyracksServerMojo.java
index 448ca22..0657fcf 100644
--- a/hyracks/hyracks-maven-plugins/hyracks-virtualcluster-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/AbstractHyracksServerMojo.java
+++ b/hyracks/hyracks-maven-plugins/hyracks-virtualcluster-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/AbstractHyracksServerMojo.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-maven-plugins/hyracks-virtualcluster-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/HyracksCCStartMojo.java b/hyracks/hyracks-maven-plugins/hyracks-virtualcluster-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/HyracksCCStartMojo.java
index cf78a72..d701aa9 100644
--- a/hyracks/hyracks-maven-plugins/hyracks-virtualcluster-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/HyracksCCStartMojo.java
+++ b/hyracks/hyracks-maven-plugins/hyracks-virtualcluster-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/HyracksCCStartMojo.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-maven-plugins/hyracks-virtualcluster-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/HyracksNCStartMojo.java b/hyracks/hyracks-maven-plugins/hyracks-virtualcluster-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/HyracksNCStartMojo.java
index fc06a68..ecd2575 100644
--- a/hyracks/hyracks-maven-plugins/hyracks-virtualcluster-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/HyracksNCStartMojo.java
+++ b/hyracks/hyracks-maven-plugins/hyracks-virtualcluster-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/HyracksNCStartMojo.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-maven-plugins/hyracks-virtualcluster-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/HyracksServiceRegistry.java b/hyracks/hyracks-maven-plugins/hyracks-virtualcluster-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/HyracksServiceRegistry.java
index 6ea5a64..cd8955a 100644
--- a/hyracks/hyracks-maven-plugins/hyracks-virtualcluster-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/HyracksServiceRegistry.java
+++ b/hyracks/hyracks-maven-plugins/hyracks-virtualcluster-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/HyracksServiceRegistry.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-maven-plugins/hyracks-virtualcluster-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/HyracksStopServicesMojo.java b/hyracks/hyracks-maven-plugins/hyracks-virtualcluster-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/HyracksStopServicesMojo.java
index eaf40fc..aa8b907 100644
--- a/hyracks/hyracks-maven-plugins/hyracks-virtualcluster-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/HyracksStopServicesMojo.java
+++ b/hyracks/hyracks-maven-plugins/hyracks-virtualcluster-maven-plugin/src/main/java/edu/uci/ics/hyracks/maven/plugin/HyracksStopServicesMojo.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-maven-plugins/pom.xml b/hyracks/hyracks-maven-plugins/pom.xml
index 39338e7..6d8a2ec 100644
--- a/hyracks/hyracks-maven-plugins/pom.xml
+++ b/hyracks/hyracks-maven-plugins/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-maven-plugins</artifactId>
@@ -7,7 +21,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <dependencies>
diff --git a/hyracks/hyracks-net/pom.xml b/hyracks/hyracks-net/pom.xml
index b82a88a..e5853b7 100644
--- a/hyracks/hyracks-net/pom.xml
+++ b/hyracks/hyracks-net/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-net</artifactId>
@@ -5,7 +19,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/buffers/IBufferAcceptor.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/buffers/IBufferAcceptor.java
index 26e335e..e6262ec 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/buffers/IBufferAcceptor.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/buffers/IBufferAcceptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/buffers/ICloseableBufferAcceptor.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/buffers/ICloseableBufferAcceptor.java
index 5e9bf02..2a2c39e 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/buffers/ICloseableBufferAcceptor.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/buffers/ICloseableBufferAcceptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/exceptions/NetException.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/exceptions/NetException.java
index ecd0373..4928255 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/exceptions/NetException.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/exceptions/NetException.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/ChannelControlBlock.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/ChannelControlBlock.java
index 3dec7e0..2e95cde 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/ChannelControlBlock.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/ChannelControlBlock.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/ChannelSet.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/ChannelSet.java
index 8fa99be..d59bfc4 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/ChannelSet.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/ChannelSet.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/IChannelOpenListener.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/IChannelOpenListener.java
index feb605f..c9c3d49 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/IChannelOpenListener.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/IChannelOpenListener.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/IChannelReadInterface.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/IChannelReadInterface.java
index 178ad78..2e961fd 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/IChannelReadInterface.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/IChannelReadInterface.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/IChannelWriteInterface.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/IChannelWriteInterface.java
index 8e71246..e2fb764 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/IChannelWriteInterface.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/IChannelWriteInterface.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/IEventCounter.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/IEventCounter.java
index 148078c..a56bed3 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/IEventCounter.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/IEventCounter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/MultiplexedConnection.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/MultiplexedConnection.java
index 27bd793..54a2641 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/MultiplexedConnection.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/MultiplexedConnection.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/MuxDemux.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/MuxDemux.java
index e4df6b9..7602071 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/MuxDemux.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/MuxDemux.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/MuxDemuxCommand.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/MuxDemuxCommand.java
index 4610170..efd945d 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/MuxDemuxCommand.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/MuxDemuxCommand.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.net.protocols.muxdemux;
 
 import java.nio.ByteBuffer;
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/MuxDemuxPerformanceCounters.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/MuxDemuxPerformanceCounters.java
index 6bf21aa..c67ba27 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/MuxDemuxPerformanceCounters.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/muxdemux/MuxDemuxPerformanceCounters.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/tcp/ITCPConnectionEventListener.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/tcp/ITCPConnectionEventListener.java
index 79c21ee..083e8b6 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/tcp/ITCPConnectionEventListener.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/tcp/ITCPConnectionEventListener.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/tcp/ITCPConnectionListener.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/tcp/ITCPConnectionListener.java
index ead2a1f..ff38af5 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/tcp/ITCPConnectionListener.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/tcp/ITCPConnectionListener.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/tcp/TCPConnection.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/tcp/TCPConnection.java
index 210508b..8f3784b 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/tcp/TCPConnection.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/tcp/TCPConnection.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/tcp/TCPEndpoint.java b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/tcp/TCPEndpoint.java
index a9061e1..932d71a 100644
--- a/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/tcp/TCPEndpoint.java
+++ b/hyracks/hyracks-net/src/main/java/edu/uci/ics/hyracks/net/protocols/tcp/TCPEndpoint.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-net/src/test/java/edu/uci/ics/hyracks/net/tests/NetTest.java b/hyracks/hyracks-net/src/test/java/edu/uci/ics/hyracks/net/tests/NetTest.java
index 5002b81..abb6e66 100644
--- a/hyracks/hyracks-net/src/test/java/edu/uci/ics/hyracks/net/tests/NetTest.java
+++ b/hyracks/hyracks-net/src/test/java/edu/uci/ics/hyracks/net/tests/NetTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-server/pom.xml b/hyracks/hyracks-server/pom.xml
index bdf8db6..646880d 100644
--- a/hyracks/hyracks-server/pom.xml
+++ b/hyracks/hyracks-server/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-server</artifactId>
@@ -5,7 +19,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -74,14 +88,14 @@
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-control-cc</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-control-nc</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
diff --git a/hyracks/hyracks-server/src/main/assembly/binary-assembly.xml b/hyracks/hyracks-server/src/main/assembly/binary-assembly.xml
index cd598d9..ae362ca 100644
--- a/hyracks/hyracks-server/src/main/assembly/binary-assembly.xml
+++ b/hyracks/hyracks-server/src/main/assembly/binary-assembly.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <assembly>
   <id>binary-assembly</id>
   <formats>
diff --git a/hyracks/hyracks-server/src/main/java/edu/uci/ics/hyracks/server/drivers/VirtualClusterDriver.java b/hyracks/hyracks-server/src/main/java/edu/uci/ics/hyracks/server/drivers/VirtualClusterDriver.java
index 8833fed..5ef4812 100644
--- a/hyracks/hyracks-server/src/main/java/edu/uci/ics/hyracks/server/drivers/VirtualClusterDriver.java
+++ b/hyracks/hyracks-server/src/main/java/edu/uci/ics/hyracks/server/drivers/VirtualClusterDriver.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-server/src/main/java/edu/uci/ics/hyracks/server/process/HyracksCCProcess.java b/hyracks/hyracks-server/src/main/java/edu/uci/ics/hyracks/server/process/HyracksCCProcess.java
index cb1be95..a03c8b1 100644
--- a/hyracks/hyracks-server/src/main/java/edu/uci/ics/hyracks/server/process/HyracksCCProcess.java
+++ b/hyracks/hyracks-server/src/main/java/edu/uci/ics/hyracks/server/process/HyracksCCProcess.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.server.process;
 
 import java.util.List;
diff --git a/hyracks/hyracks-server/src/main/java/edu/uci/ics/hyracks/server/process/HyracksNCProcess.java b/hyracks/hyracks-server/src/main/java/edu/uci/ics/hyracks/server/process/HyracksNCProcess.java
index cd110c8..852d635 100644
--- a/hyracks/hyracks-server/src/main/java/edu/uci/ics/hyracks/server/process/HyracksNCProcess.java
+++ b/hyracks/hyracks-server/src/main/java/edu/uci/ics/hyracks/server/process/HyracksNCProcess.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.server.process;
 
 import java.util.List;
diff --git a/hyracks/hyracks-server/src/main/java/edu/uci/ics/hyracks/server/process/HyracksServerProcess.java b/hyracks/hyracks-server/src/main/java/edu/uci/ics/hyracks/server/process/HyracksServerProcess.java
index 6a0e45f..53f3121 100644
--- a/hyracks/hyracks-server/src/main/java/edu/uci/ics/hyracks/server/process/HyracksServerProcess.java
+++ b/hyracks/hyracks-server/src/main/java/edu/uci/ics/hyracks/server/process/HyracksServerProcess.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-bloomfilter/pom.xml b/hyracks/hyracks-storage-am-bloomfilter/pom.xml
index 3c3f14b..7d9a92e 100644
--- a/hyracks/hyracks-storage-am-bloomfilter/pom.xml
+++ b/hyracks/hyracks-storage-am-bloomfilter/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-storage-am-bloomfilter</artifactId>
@@ -5,7 +19,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -25,7 +39,7 @@
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-storage-am-common</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>  	
diff --git a/hyracks/hyracks-storage-am-bloomfilter/src/main/java/edu/uci/ics/hyracks/storage/am/bloomfilter/impls/BloomFilter.java b/hyracks/hyracks-storage-am-bloomfilter/src/main/java/edu/uci/ics/hyracks/storage/am/bloomfilter/impls/BloomFilter.java
index 0e796b0..6811e1b 100644
--- a/hyracks/hyracks-storage-am-bloomfilter/src/main/java/edu/uci/ics/hyracks/storage/am/bloomfilter/impls/BloomFilter.java
+++ b/hyracks/hyracks-storage-am-bloomfilter/src/main/java/edu/uci/ics/hyracks/storage/am/bloomfilter/impls/BloomFilter.java
@@ -209,15 +209,15 @@
                 throw new HyracksDataException("Failed to create the bloom filter builder since it is not activated.");
             }
 
-            this.numElements = numElements;
+            this.numElements = numElements == 0 ? 1 : numElements;
             this.numHashes = numHashes;
-            numBits = numElements * numBitsPerElement;
+            numBits = this.numElements * numBitsPerElement;
             long tmp = (long) Math.ceil(numBits / (double) numBitsPerPage);
             if (tmp > Integer.MAX_VALUE) {
                 throw new HyracksDataException("Cannot create a bloom filter with his huge number of pages.");
             }
             numPages = (int) tmp;
-            if (numElements > 0) {
+            if (this.numElements > 0) {
                 persistBloomFilterMetaData();
                 readBloomFilterMetaData();
                 int currentPageId = 1;
diff --git a/hyracks/hyracks-storage-am-btree/pom.xml b/hyracks/hyracks-storage-am-btree/pom.xml
index a337609..4878a44 100644
--- a/hyracks/hyracks-storage-am-btree/pom.xml
+++ b/hyracks/hyracks-storage-am-btree/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-storage-am-btree</artifactId>
@@ -6,7 +20,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -27,28 +41,28 @@
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-storage-common</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>  	
         <dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-storage-am-common</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>  	
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-dataflow-common</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>  	
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-dataflow-std</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>  	
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/api/IBTreeFrame.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/api/IBTreeFrame.java
index ee3fd90..fb730fe 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/api/IBTreeFrame.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/api/IBTreeFrame.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/api/IBTreeInteriorFrame.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/api/IBTreeInteriorFrame.java
index ffdcc5c..61dd98e 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/api/IBTreeInteriorFrame.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/api/IBTreeInteriorFrame.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/api/IBTreeLeafFrame.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/api/IBTreeLeafFrame.java
index bbb67bd..196f691 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/api/IBTreeLeafFrame.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/api/IBTreeLeafFrame.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/api/IPrefixSlotManager.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/api/IPrefixSlotManager.java
index 6ec5eef..08ebf18 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/api/IPrefixSlotManager.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/api/IPrefixSlotManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/api/ITupleAcceptor.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/api/ITupleAcceptor.java
index 5f4b30a..b455ef9 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/api/ITupleAcceptor.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/api/ITupleAcceptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/compressors/FieldPrefixCompressor.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/compressors/FieldPrefixCompressor.java
index 7e27113..ea2cca3 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/compressors/FieldPrefixCompressor.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/compressors/FieldPrefixCompressor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/dataflow/BTreeDataflowHelper.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/dataflow/BTreeDataflowHelper.java
index 982f0ed..1e0125a 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/dataflow/BTreeDataflowHelper.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/dataflow/BTreeDataflowHelper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/dataflow/BTreeDataflowHelperFactory.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/dataflow/BTreeDataflowHelperFactory.java
index 57d7564..2a17838 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/dataflow/BTreeDataflowHelperFactory.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/dataflow/BTreeDataflowHelperFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/dataflow/BTreeSearchOperatorDescriptor.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/dataflow/BTreeSearchOperatorDescriptor.java
index c56308b..bd50981 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/dataflow/BTreeSearchOperatorDescriptor.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/dataflow/BTreeSearchOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/dataflow/BTreeSearchOperatorNodePushable.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/dataflow/BTreeSearchOperatorNodePushable.java
index dc5d161..d68901f 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/dataflow/BTreeSearchOperatorNodePushable.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/dataflow/BTreeSearchOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/dataflow/BTreeUpdateSearchOperatorDescriptor.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/dataflow/BTreeUpdateSearchOperatorDescriptor.java
index f13ecae..cd64849 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/dataflow/BTreeUpdateSearchOperatorDescriptor.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/dataflow/BTreeUpdateSearchOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/dataflow/BTreeUpdateSearchOperatorNodePushable.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/dataflow/BTreeUpdateSearchOperatorNodePushable.java
index 35ec2f6..198511e 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/dataflow/BTreeUpdateSearchOperatorNodePushable.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/dataflow/BTreeUpdateSearchOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/exceptions/BTreeDuplicateKeyException.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/exceptions/BTreeDuplicateKeyException.java
index 5a1d610..cde5022 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/exceptions/BTreeDuplicateKeyException.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/exceptions/BTreeDuplicateKeyException.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/exceptions/BTreeException.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/exceptions/BTreeException.java
index c568f6f..f34e8da 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/exceptions/BTreeException.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/exceptions/BTreeException.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/exceptions/BTreeNonExistentKeyException.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/exceptions/BTreeNonExistentKeyException.java
index 989f118..7237046 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/exceptions/BTreeNonExistentKeyException.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/exceptions/BTreeNonExistentKeyException.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/exceptions/BTreeNotUpdateableException.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/exceptions/BTreeNotUpdateableException.java
index 7e83c69..3062d08 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/exceptions/BTreeNotUpdateableException.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/exceptions/BTreeNotUpdateableException.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/frames/BTreeFieldPrefixNSMLeafFrame.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/frames/BTreeFieldPrefixNSMLeafFrame.java
index 5027dc7..b503c8b 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/frames/BTreeFieldPrefixNSMLeafFrame.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/frames/BTreeFieldPrefixNSMLeafFrame.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/frames/BTreeFieldPrefixNSMLeafFrameFactory.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/frames/BTreeFieldPrefixNSMLeafFrameFactory.java
index 79d2f3a..cdb2125 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/frames/BTreeFieldPrefixNSMLeafFrameFactory.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/frames/BTreeFieldPrefixNSMLeafFrameFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/frames/BTreeLeafFrameType.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/frames/BTreeLeafFrameType.java
index bd543f8..25028f5 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/frames/BTreeLeafFrameType.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/frames/BTreeLeafFrameType.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/frames/BTreeNSMInteriorFrame.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/frames/BTreeNSMInteriorFrame.java
index 8753d6b..67392ac 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/frames/BTreeNSMInteriorFrame.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/frames/BTreeNSMInteriorFrame.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/frames/BTreeNSMInteriorFrameFactory.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/frames/BTreeNSMInteriorFrameFactory.java
index 1491b55..d13aa2b 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/frames/BTreeNSMInteriorFrameFactory.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/frames/BTreeNSMInteriorFrameFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/frames/BTreeNSMLeafFrame.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/frames/BTreeNSMLeafFrame.java
index bfb1eca..1974989 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/frames/BTreeNSMLeafFrame.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/frames/BTreeNSMLeafFrame.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/frames/BTreeNSMLeafFrameFactory.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/frames/BTreeNSMLeafFrameFactory.java
index b445fa8..70b1537 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/frames/BTreeNSMLeafFrameFactory.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/frames/BTreeNSMLeafFrameFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/frames/OrderedSlotManager.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/frames/OrderedSlotManager.java
index e51ee99..2071a77 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/frames/OrderedSlotManager.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/frames/OrderedSlotManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/BTree.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/BTree.java
index 8846873..689843b 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/BTree.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/BTree.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -934,8 +934,8 @@
     }
 
     @Override
-    public IIndexBulkLoader createBulkLoader(float fillFactor, boolean verifyInput, long numElementsHint)
-            throws TreeIndexException {
+    public IIndexBulkLoader createBulkLoader(float fillFactor, boolean verifyInput, long numElementsHint,
+            boolean checkIfEmptyIndex) throws TreeIndexException {
         try {
             return new BTreeBulkLoader(fillFactor, verifyInput);
         } catch (HyracksDataException e) {
@@ -1025,7 +1025,8 @@
                 HyracksDataException {
             // New tuple should be strictly greater than last tuple.
             if (cmp.compare(tuple, prevTuple) <= 0) {
-                throw new UnsortedInputException("Input stream given to BTree bulk load is not sorted.");
+                throw new UnsortedInputException(
+                        "Input stream given to BTree bulk load is not sorted or has duplicates.");
             }
         }
 
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/BTreeCountingSearchCursor.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/BTreeCountingSearchCursor.java
index 0ed1dbe..ee65a46 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/BTreeCountingSearchCursor.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/BTreeCountingSearchCursor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/BTreeCursorInitialState.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/BTreeCursorInitialState.java
index 9d7b612..546f385 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/BTreeCursorInitialState.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/BTreeCursorInitialState.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.btree.impls;
 
 import edu.uci.ics.hyracks.storage.am.common.api.ICursorInitialState;
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/BTreeOpContext.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/BTreeOpContext.java
index 6991850..ca3b17e 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/BTreeOpContext.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/BTreeOpContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/BTreeRangeSearchCursor.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/BTreeRangeSearchCursor.java
index 607e00a..4546b0e 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/BTreeRangeSearchCursor.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/BTreeRangeSearchCursor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/BTreeSplitKey.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/BTreeSplitKey.java
index 2606c08..c39c6df 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/BTreeSplitKey.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/BTreeSplitKey.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/FieldPrefixPrefixTupleReference.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/FieldPrefixPrefixTupleReference.java
index 44fcdef..e8c347a 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/FieldPrefixPrefixTupleReference.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/FieldPrefixPrefixTupleReference.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/FieldPrefixSlotManager.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/FieldPrefixSlotManager.java
index 4c66fbb..d34284d 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/FieldPrefixSlotManager.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/FieldPrefixSlotManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/FieldPrefixTupleReference.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/FieldPrefixTupleReference.java
index b7174d4..c2416e6 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/FieldPrefixTupleReference.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/FieldPrefixTupleReference.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.btree.impls;
 
 import java.nio.ByteBuffer;
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/NodeFrontier.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/NodeFrontier.java
index 60f682c..16e11e8 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/NodeFrontier.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/NodeFrontier.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/RangePredicate.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/RangePredicate.java
index 607d47b..9924187 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/RangePredicate.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/RangePredicate.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/UnconditionalTupleAcceptor.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/UnconditionalTupleAcceptor.java
index 9ae2523..85c5eff 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/UnconditionalTupleAcceptor.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/impls/UnconditionalTupleAcceptor.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.btree.impls;
 
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
diff --git a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/util/BTreeUtils.java b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/util/BTreeUtils.java
index de73459..f5b23aa 100644
--- a/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/util/BTreeUtils.java
+++ b/hyracks/hyracks-storage-am-btree/src/main/java/edu/uci/ics/hyracks/storage/am/btree/util/BTreeUtils.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.btree.util;
 
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator;
diff --git a/hyracks/hyracks-storage-am-common/pom.xml b/hyracks/hyracks-storage-am-common/pom.xml
index 2a537a1..33bbe5e 100644
--- a/hyracks/hyracks-storage-am-common/pom.xml
+++ b/hyracks/hyracks-storage-am-common/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-storage-am-common</artifactId>
@@ -6,7 +20,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -27,28 +41,28 @@
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-api</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-storage-common</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-dataflow-common</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-dataflow-std</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ICursorInitialState.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ICursorInitialState.java
index 9fbaac2..600643c 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ICursorInitialState.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ICursorInitialState.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IFreePageManager.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IFreePageManager.java
index 98b9a7e..2ae22a7 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IFreePageManager.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IFreePageManager.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.common.api;
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IFreePageManagerFactory.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IFreePageManagerFactory.java
index d26e65f..c3add17 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IFreePageManagerFactory.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IFreePageManagerFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.common.api;
 
 public interface IFreePageManagerFactory {
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IInMemoryFreePageManager.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IInMemoryFreePageManager.java
deleted file mode 100644
index 67935a7..0000000
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IInMemoryFreePageManager.java
+++ /dev/null
@@ -1,9 +0,0 @@
-package edu.uci.ics.hyracks.storage.am.common.api;
-
-public interface IInMemoryFreePageManager extends IFreePageManager {
-    public int getCapacity();
-
-    public void reset();
-
-    public boolean isFull();
-}
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IIndex.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IIndex.java
index 33e0721..4006cb7 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IIndex.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IIndex.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -120,6 +120,6 @@
      * @param verifyInput
      * @throws IndexException
      */
-    public IIndexBulkLoader createBulkLoader(float fillFactor, boolean verifyInput, long numElementsHint)
-            throws IndexException;
+    public IIndexBulkLoader createBulkLoader(float fillFactor, boolean verifyInput, long numElementsHint,
+            boolean checkIfEmptyIndex) throws IndexException;
 }
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IIndexAccessor.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IIndexAccessor.java
index 202769f..5eb3cdd 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IIndexAccessor.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IIndexAccessor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IIndexBulkLoader.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IIndexBulkLoader.java
index 86ed78f..ef1bef8 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IIndexBulkLoader.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IIndexBulkLoader.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.common.api;
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IIndexCursor.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IIndexCursor.java
index 1c75da2..2cba1a2 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IIndexCursor.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IIndexCursor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IIndexDataflowHelper.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IIndexDataflowHelper.java
index 39b4553..ede7c97 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IIndexDataflowHelper.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IIndexDataflowHelper.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.common.api;
 
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IIndexLifecycleManager.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IIndexLifecycleManager.java
index c4f43b9..938464f 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IIndexLifecycleManager.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IIndexLifecycleManager.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.common.api;
 
 import java.util.List;
@@ -5,7 +19,7 @@
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 
 public interface IIndexLifecycleManager {
-    public IIndex getIndex(long resourceID);
+    public IIndex getIndex(long resourceID) throws HyracksDataException;
 
     public void register(long resourceID, IIndex index) throws HyracksDataException;
 
@@ -13,7 +27,7 @@
 
     public void open(long resourceID) throws HyracksDataException;
 
-    public void close(long resourceID);
+    public void close(long resourceID) throws HyracksDataException;
 
     public List<IIndex> getOpenIndexes();
 }
\ No newline at end of file
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IIndexLifecycleManagerProvider.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IIndexLifecycleManagerProvider.java
index 7ae4a48..8ff27d9 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IIndexLifecycleManagerProvider.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IIndexLifecycleManagerProvider.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.common.api;
 
 import java.io.Serializable;
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IIndexOperationContext.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IIndexOperationContext.java
index 7f92065..974d91c 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IIndexOperationContext.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IIndexOperationContext.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.common.api;
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
@@ -9,4 +23,4 @@
     IndexOperation getOperation();
 
     void reset();
-}
\ No newline at end of file
+}
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IModificationOperationCallback.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IModificationOperationCallback.java
index 0b68ab0..ab654de 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IModificationOperationCallback.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IModificationOperationCallback.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.common.api;
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IModificationOperationCallbackFactory.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IModificationOperationCallbackFactory.java
index 65c9c8a..968acd0 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IModificationOperationCallbackFactory.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IModificationOperationCallbackFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.common.api;
 
 import java.io.Serializable;
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IPrimitiveValueProvider.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IPrimitiveValueProvider.java
index 4696e68..0f4d5a8 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IPrimitiveValueProvider.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IPrimitiveValueProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IPrimitiveValueProviderFactory.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IPrimitiveValueProviderFactory.java
index 8e45d0c..5a49efb 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IPrimitiveValueProviderFactory.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IPrimitiveValueProviderFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ISearchOperationCallback.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ISearchOperationCallback.java
index 62d5054..2c68fde 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ISearchOperationCallback.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ISearchOperationCallback.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.common.api;
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ISearchOperationCallbackFactory.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ISearchOperationCallbackFactory.java
index 6389b8d..949205d 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ISearchOperationCallbackFactory.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ISearchOperationCallbackFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.common.api;
 
 import java.io.Serializable;
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ISearchPredicate.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ISearchPredicate.java
index a96db28..641d365 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ISearchPredicate.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ISearchPredicate.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ISlotManager.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ISlotManager.java
index 3e5e018..2376c32 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ISlotManager.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ISlotManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ISplitKey.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ISplitKey.java
index 3a1c8a1..1f7c300 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ISplitKey.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ISplitKey.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.common.api;
 
 import java.nio.ByteBuffer;
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndex.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndex.java
index 2313c2e..e869867 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndex.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndex.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexAccessor.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexAccessor.java
index da8fc3b..f2efbd3 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexAccessor.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexAccessor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexCursor.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexCursor.java
index 229613c..5102d27 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexCursor.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexCursor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexFrame.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexFrame.java
index 4a14505..b987971 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexFrame.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexFrame.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexFrameCompressor.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexFrameCompressor.java
index 75ee598..d358b12 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexFrameCompressor.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexFrameCompressor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexFrameFactory.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexFrameFactory.java
index 32c77be..250bfb4 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexFrameFactory.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexFrameFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.common.api;
 
 import java.io.Serializable;
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexMetaDataFrame.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexMetaDataFrame.java
index b48ded4..e7a5ac7 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexMetaDataFrame.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexMetaDataFrame.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexMetaDataFrameFactory.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexMetaDataFrameFactory.java
index d5625b4..fd7527d 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexMetaDataFrameFactory.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexMetaDataFrameFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexTupleReference.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexTupleReference.java
index b989dd9..d51a2ee 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexTupleReference.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexTupleReference.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexTupleWriter.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexTupleWriter.java
index 43991f1..ac0eaa4 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexTupleWriter.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexTupleWriter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexTupleWriterFactory.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexTupleWriterFactory.java
index ea5e740..d08ffc2 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexTupleWriterFactory.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITreeIndexTupleWriterFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITupleFilter.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITupleFilter.java
index 41f0f4d..d61594e 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITupleFilter.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITupleFilter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITupleFilterFactory.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITupleFilterFactory.java
index 602902d..eb65e8c 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITupleFilterFactory.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITupleFilterFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITupleUpdater.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITupleUpdater.java
index e201cc3..b0aec24 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITupleUpdater.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITupleUpdater.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITupleUpdaterFactory.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITupleUpdaterFactory.java
index ee20b6c..e9db7b5 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITupleUpdaterFactory.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/ITupleUpdaterFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IVirtualFreePageManager.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IVirtualFreePageManager.java
new file mode 100644
index 0000000..e43907b
--- /dev/null
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IVirtualFreePageManager.java
@@ -0,0 +1,21 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.hyracks.storage.am.common.api;
+
+public interface IVirtualFreePageManager extends IFreePageManager {
+    public int getCapacity();
+
+    public void reset();
+}
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IndexException.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IndexException.java
index 0aeaf82..c39d37f 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IndexException.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/IndexException.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/TreeIndexException.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/TreeIndexException.java
index c3f3f1a..8323ac9 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/TreeIndexException.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/TreeIndexException.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/UnsortedInputException.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/UnsortedInputException.java
index e3304c9..dd5b7b2 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/UnsortedInputException.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/api/UnsortedInputException.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/data/PointablePrimitiveValueProviderFactory.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/data/PointablePrimitiveValueProviderFactory.java
index c159ba5..82d3614 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/data/PointablePrimitiveValueProviderFactory.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/data/PointablePrimitiveValueProviderFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/AbstractIndexOperatorDescriptor.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/AbstractIndexOperatorDescriptor.java
index c26bbfa..1e0bb25 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/AbstractIndexOperatorDescriptor.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/AbstractIndexOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/AbstractTreeIndexOperatorDescriptor.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/AbstractTreeIndexOperatorDescriptor.java
index ffcf7a1..76fea07 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/AbstractTreeIndexOperatorDescriptor.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/AbstractTreeIndexOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IIndexDataflowHelperFactory.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IIndexDataflowHelperFactory.java
index 71760c9..0ae194b 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IIndexDataflowHelperFactory.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IIndexDataflowHelperFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IIndexOperatorDescriptor.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IIndexOperatorDescriptor.java
index 6193414..922dbe4 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IIndexOperatorDescriptor.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IIndexOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/ITreeIndexOperatorDescriptor.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/ITreeIndexOperatorDescriptor.java
index 7fba22b..3be6ba3 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/ITreeIndexOperatorDescriptor.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/ITreeIndexOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexBulkLoadOperatorNodePushable.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexBulkLoadOperatorNodePushable.java
index 1b6271d..a0f9d8e 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexBulkLoadOperatorNodePushable.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexBulkLoadOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -34,6 +34,7 @@
     private final float fillFactor;
     private final boolean verifyInput;
     private final long numElementsHint;
+    private final boolean checkIfEmptyIndex;
     private final IIndexDataflowHelper indexHelper;
     private FrameTupleAccessor accessor;
     private IIndex index;
@@ -43,13 +44,14 @@
 
     public IndexBulkLoadOperatorNodePushable(IIndexOperatorDescriptor opDesc, IHyracksTaskContext ctx, int partition,
             int[] fieldPermutation, float fillFactor, boolean verifyInput, long numElementsHint,
-            IRecordDescriptorProvider recordDescProvider) {
+            boolean checkIfEmptyIndex, IRecordDescriptorProvider recordDescProvider) {
         this.opDesc = opDesc;
         this.ctx = ctx;
         this.indexHelper = opDesc.getIndexDataflowHelperFactory().createIndexDataflowHelper(opDesc, ctx, partition);
         this.fillFactor = fillFactor;
         this.verifyInput = verifyInput;
         this.numElementsHint = numElementsHint;
+        this.checkIfEmptyIndex = checkIfEmptyIndex;
         this.recDescProvider = recordDescProvider;
         tuple.setFieldPermutation(fieldPermutation);
     }
@@ -61,7 +63,7 @@
         indexHelper.open();
         index = indexHelper.getIndexInstance();
         try {
-            bulkLoader = index.createBulkLoader(fillFactor, verifyInput, numElementsHint);
+            bulkLoader = index.createBulkLoader(fillFactor, verifyInput, numElementsHint, checkIfEmptyIndex);
         } catch (Exception e) {
             indexHelper.close();
             throw new HyracksDataException(e);
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexCreateOperatorNodePushable.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexCreateOperatorNodePushable.java
index f965f01..117471e 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexCreateOperatorNodePushable.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexCreateOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexDataflowHelper.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexDataflowHelper.java
index 22c6637..5e07e0c 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexDataflowHelper.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexDataflowHelper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -75,7 +75,7 @@
             // any physical artifact that the LocalResourceRepository is managing (e.g. a file containing the resource ID). 
             // Once the index has been created, a new resource ID can be generated.
             if (resourceID != -1) {
-                localResourceRepository.deleteResourceByName(file.getFile().getPath(), ioDeviceId);
+                localResourceRepository.deleteResourceByName(file.getFile().getPath());
             }
             index.create();
             try {
@@ -83,9 +83,8 @@
                 resourceID = resourceIdFactory.createId();
                 ILocalResourceFactory localResourceFactory = opDesc.getLocalResourceFactoryProvider()
                         .getLocalResourceFactory();
-                localResourceRepository.insert(
-                        localResourceFactory.createLocalResource(resourceID, file.getFile().getPath(), partition),
-                        ioDeviceId);
+                localResourceRepository.insert(localResourceFactory.createLocalResource(resourceID, file.getFile()
+                        .getPath(), partition));
             } catch (IOException e) {
                 throw new HyracksDataException(e);
             }
@@ -127,7 +126,7 @@
             }
 
             if (resourceID != -1) {
-                localResourceRepository.deleteResourceByName(file.getFile().getPath(), ioDeviceId);
+                localResourceRepository.deleteResourceByName(file.getFile().getPath());
             }
             index.destroy();
         }
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexDropOperatorDescriptor.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexDropOperatorDescriptor.java
index 6f890d7..37edbd9 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexDropOperatorDescriptor.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexDropOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexDropOperatorNodePushable.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexDropOperatorNodePushable.java
index 73bed72..551b68f 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexDropOperatorNodePushable.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexDropOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexInsertUpdateDeleteOperatorNodePushable.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexInsertUpdateDeleteOperatorNodePushable.java
index 059f42a..4a9cfb4 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexInsertUpdateDeleteOperatorNodePushable.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexInsertUpdateDeleteOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexLifecycleManager.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexLifecycleManager.java
index 197aecc..052ea67 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexLifecycleManager.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexLifecycleManager.java
@@ -1,5 +1,21 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.common.dataflow;
 
+import java.io.IOException;
+import java.io.OutputStream;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.HashMap;
@@ -7,10 +23,11 @@
 import java.util.Map;
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.api.lifecycle.ILifeCycleComponent;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndex;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndexLifecycleManager;
 
-public class IndexLifecycleManager implements IIndexLifecycleManager {
+public class IndexLifecycleManager implements IIndexLifecycleManager, ILifeCycleComponent {
     private static final long DEFAULT_MEMORY_BUDGET = 1024 * 1024 * 100; // 100 megabytes
 
     private final Map<Long, IndexInfo> indexInfos;
@@ -29,8 +46,10 @@
     }
 
     private boolean evictCandidateIndex() throws HyracksDataException {
-        // Why min()? As a heuristic for eviction, we will take an open index (an index consuming memory) 
-        // that is not being used (refcount == 0) and has been least recently used. The sort order defined 
+        // Why min()? As a heuristic for eviction, we will take an open index
+        // (an index consuming memory)
+        // that is not being used (refcount == 0) and has been least recently
+        // used. The sort order defined
         // for IndexInfo maintains this. See IndexInfo.compareTo().
         IndexInfo info = Collections.min(indexInfos.values());
         if (info.referenceCount != 0 || !info.isOpen) {
@@ -85,14 +104,13 @@
                     + " since it does not exist.");
         }
 
-        long inMemorySize = info.index.getMemoryAllocationSize();
-        while (memoryUsed + inMemorySize > memoryBudget) {
-            if (!evictCandidateIndex()) {
-                throw new HyracksDataException("Cannot activate index since memory budget would be exceeded.");
-            }
-        }
-
         if (!info.isOpen) {
+            long inMemorySize = info.index.getMemoryAllocationSize();
+            while (memoryUsed + inMemorySize > memoryBudget) {
+                if (!evictCandidateIndex()) {
+                    throw new HyracksDataException("Cannot activate index since memory budget would be exceeded.");
+                }
+            }
             info.index.activate();
             info.isOpen = true;
             memoryUsed += inMemorySize;
@@ -130,16 +148,17 @@
 
         @Override
         public int compareTo(IndexInfo i) {
-            // sort by (isOpen, referenceCount, lastAccess) ascending, where true < false
+            // sort by (isOpen, referenceCount, lastAccess) ascending, where
+            // true < false
             //
             // Example sort order:
             // -------------------
-            // (F, 0, 70)       <-- largest
+            // (F, 0, 70) <-- largest
             // (F, 0, 60)
             // (T, 10, 80)
             // (T, 10, 70)
             // (T, 9, 90)
-            // (T, 0, 100)      <-- smallest
+            // (T, 0, 100) <-- smallest
             if (isOpen && !i.isOpen) {
                 return -1;
             } else if (!isOpen && i.isOpen) {
@@ -178,4 +197,38 @@
         }
         return openIndexes;
     }
+
+    @Override
+    public void start() {
+    }
+
+    @Override
+    public void stop(boolean dumpState, OutputStream outputStream) throws IOException {
+        if (dumpState) {
+            dumpState(outputStream);
+        }
+
+        for (IndexInfo i : indexInfos.values()) {
+            if (i.isOpen) {
+                i.index.deactivate();
+            }
+        }
+    }
+
+    private void dumpState(OutputStream os) throws IOException {
+        StringBuilder sb = new StringBuilder();
+
+        sb.append(String.format("Memory budget = %d\n", memoryBudget));
+        sb.append(String.format("Memory used = %d\n", memoryUsed));
+
+        String headerFormat = "%-20s %-10s %-20s %-20s %-20s\n";
+        String rowFormat = "%-20d %-10b %-20d %-20s %-20s\n";
+        sb.append(String.format(headerFormat, "ResourceID", "Open", "Reference Count", "Last Access", "Index Name"));
+        IndexInfo ii;
+        for (Map.Entry<Long, IndexInfo> entry : indexInfos.entrySet()) {
+            ii = entry.getValue();
+            sb.append(String.format(rowFormat, entry.getKey(), ii.isOpen, ii.referenceCount, ii.lastAccess, ii.index));
+        }
+        os.write(sb.toString().getBytes());
+    }
 }
\ No newline at end of file
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexRegistry.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexRegistry.java
index 9aba0be..757c3e9 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexRegistry.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexRegistry.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexSearchOperatorNodePushable.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexSearchOperatorNodePushable.java
index d867c6c..a79daef 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexSearchOperatorNodePushable.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/IndexSearchOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexBulkLoadOperatorDescriptor.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexBulkLoadOperatorDescriptor.java
index f7f57e6..a58e9e8 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexBulkLoadOperatorDescriptor.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexBulkLoadOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -36,12 +36,13 @@
     private final float fillFactor;
     private final boolean verifyInput;
     private final long numElementsHint;
+    private final boolean checkIfEmptyIndex;
 
     public TreeIndexBulkLoadOperatorDescriptor(IOperatorDescriptorRegistry spec,
             IStorageManagerInterface storageManager, IIndexLifecycleManagerProvider lifecycleManagerProvider,
             IFileSplitProvider fileSplitProvider, ITypeTraits[] typeTraits,
             IBinaryComparatorFactory[] comparatorFactories, int[] bloomFilterKeyFields, int[] fieldPermutation,
-            float fillFactor, boolean verifyInput, long numElementsHint,
+            float fillFactor, boolean verifyInput, long numElementsHint, boolean checkIfEmptyIndex,
             IIndexDataflowHelperFactory dataflowHelperFactory,
             IModificationOperationCallbackFactory modificationOpCallbackFactory) {
         super(spec, 1, 0, null, storageManager, lifecycleManagerProvider, fileSplitProvider, typeTraits,
@@ -52,12 +53,13 @@
         this.fillFactor = fillFactor;
         this.verifyInput = verifyInput;
         this.numElementsHint = numElementsHint;
+        this.checkIfEmptyIndex = checkIfEmptyIndex;
     }
 
     @Override
     public IOperatorNodePushable createPushRuntime(IHyracksTaskContext ctx,
             IRecordDescriptorProvider recordDescProvider, int partition, int nPartitions) {
         return new IndexBulkLoadOperatorNodePushable(this, ctx, partition, fieldPermutation, fillFactor, verifyInput,
-                numElementsHint, recordDescProvider);
+                numElementsHint, checkIfEmptyIndex, recordDescProvider);
     }
 }
\ No newline at end of file
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexCreateOperatorDescriptor.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexCreateOperatorDescriptor.java
index 8b7e81d..bd7b4fa 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexCreateOperatorDescriptor.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexCreateOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexDataflowHelper.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexDataflowHelper.java
index 711dfe0..de7f12b 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexDataflowHelper.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexDataflowHelper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexDiskOrderScanOperatorDescriptor.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexDiskOrderScanOperatorDescriptor.java
index a8644e4..83558b1 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexDiskOrderScanOperatorDescriptor.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexDiskOrderScanOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexDiskOrderScanOperatorNodePushable.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexDiskOrderScanOperatorNodePushable.java
index c2b5ca8..cb6270f 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexDiskOrderScanOperatorNodePushable.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexDiskOrderScanOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexInsertUpdateDeleteOperatorDescriptor.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexInsertUpdateDeleteOperatorDescriptor.java
index 84e6090..9a97190 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexInsertUpdateDeleteOperatorDescriptor.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexInsertUpdateDeleteOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexStatsOperatorDescriptor.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexStatsOperatorDescriptor.java
index b589f96..4bbdbfc 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexStatsOperatorDescriptor.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexStatsOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexStatsOperatorNodePushable.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexStatsOperatorNodePushable.java
index 7e57240..717d326 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexStatsOperatorNodePushable.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/dataflow/TreeIndexStatsOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/DataGenThread.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/DataGenThread.java
index 6fff620..6e17ff8 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/DataGenThread.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/DataGenThread.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/DataGenUtils.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/DataGenUtils.java
index b3914e6..d7234fa 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/DataGenUtils.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/DataGenUtils.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/DocumentStringFieldValueGenerator.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/DocumentStringFieldValueGenerator.java
index b12bb7d..bfb7af2 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/DocumentStringFieldValueGenerator.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/DocumentStringFieldValueGenerator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/DoubleFieldValueGenerator.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/DoubleFieldValueGenerator.java
index c98c249..b0ddb4d 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/DoubleFieldValueGenerator.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/DoubleFieldValueGenerator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/FloatFieldValueGenerator.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/FloatFieldValueGenerator.java
index 7c3ff81..221c677 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/FloatFieldValueGenerator.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/FloatFieldValueGenerator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/IFieldValueGenerator.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/IFieldValueGenerator.java
index dfeead6..2c729a4 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/IFieldValueGenerator.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/IFieldValueGenerator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/IntegerFieldValueGenerator.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/IntegerFieldValueGenerator.java
index cd6e2a6..fa737ee 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/IntegerFieldValueGenerator.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/IntegerFieldValueGenerator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/PersonNameFieldValueGenerator.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/PersonNameFieldValueGenerator.java
index 6b86278..8022027 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/PersonNameFieldValueGenerator.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/PersonNameFieldValueGenerator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/ProbabilityHelper.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/ProbabilityHelper.java
index 1674681..ccbdae7 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/ProbabilityHelper.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/ProbabilityHelper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/SortedDoubleFieldValueGenerator.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/SortedDoubleFieldValueGenerator.java
index e93b8de..ec7b6a9 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/SortedDoubleFieldValueGenerator.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/SortedDoubleFieldValueGenerator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/SortedFloatFieldValueGenerator.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/SortedFloatFieldValueGenerator.java
index fb163e1..11b23d2 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/SortedFloatFieldValueGenerator.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/SortedFloatFieldValueGenerator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/SortedIntegerFieldValueGenerator.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/SortedIntegerFieldValueGenerator.java
index a036772..b203f26 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/SortedIntegerFieldValueGenerator.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/SortedIntegerFieldValueGenerator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/StringFieldValueGenerator.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/StringFieldValueGenerator.java
index 6bf01a4..5562765 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/StringFieldValueGenerator.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/StringFieldValueGenerator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/TupleBatch.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/TupleBatch.java
index 375aeb0..864d2c5 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/TupleBatch.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/TupleBatch.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/TupleGenerator.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/TupleGenerator.java
index d0a1062..38399ed 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/TupleGenerator.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/datagen/TupleGenerator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/frames/AbstractSlotManager.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/frames/AbstractSlotManager.java
index a1a38ab..f2b88d4 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/frames/AbstractSlotManager.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/frames/AbstractSlotManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/frames/FrameOpSpaceStatus.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/frames/FrameOpSpaceStatus.java
index da9c815..a67dca7 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/frames/FrameOpSpaceStatus.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/frames/FrameOpSpaceStatus.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/frames/LIFOMetaDataFrame.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/frames/LIFOMetaDataFrame.java
index 1b8bc15..0a4d6c1 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/frames/LIFOMetaDataFrame.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/frames/LIFOMetaDataFrame.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/frames/LIFOMetaDataFrameFactory.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/frames/LIFOMetaDataFrameFactory.java
index 68d1ee3..9dc0444 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/frames/LIFOMetaDataFrameFactory.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/frames/LIFOMetaDataFrameFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/frames/TreeIndexNSMFrame.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/frames/TreeIndexNSMFrame.java
index 2e97b21..16ccb15 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/frames/TreeIndexNSMFrame.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/frames/TreeIndexNSMFrame.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/freepage/LinkedListFreePageManager.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/freepage/LinkedListFreePageManager.java
index 036aa09..2e25f4c 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/freepage/LinkedListFreePageManager.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/freepage/LinkedListFreePageManager.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.common.freepage;
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/freepage/LinkedListFreePageManagerFactory.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/freepage/LinkedListFreePageManagerFactory.java
index 1c373d5..17d0225 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/freepage/LinkedListFreePageManagerFactory.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/freepage/LinkedListFreePageManagerFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/impls/AbstractTreeIndex.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/impls/AbstractTreeIndex.java
index abab29d..19d40a0 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/impls/AbstractTreeIndex.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/impls/AbstractTreeIndex.java
@@ -1,17 +1,17 @@
-/*
- * Copyright 2009-2012 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 
 package edu.uci.ics.hyracks.storage.am.common.impls;
 
@@ -118,7 +118,7 @@
 
     public synchronized void activate() throws HyracksDataException {
         if (isActivated) {
-            return;
+            throw new HyracksDataException("Failed to activate the index since it is already activated.");
         }
 
         boolean fileIsMapped = false;
@@ -149,7 +149,7 @@
 
     public synchronized void deactivate() throws HyracksDataException {
         if (!isActivated) {
-            return;
+            throw new HyracksDataException("Failed to deactivate the index since it is already deactivated.");
         }
 
         bufferCache.closeFile(fileId);
@@ -360,4 +360,4 @@
     public long getMemoryAllocationSize() {
         return 0;
     }
-}
\ No newline at end of file
+}
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/impls/NoOpOperationCallback.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/impls/NoOpOperationCallback.java
index 8178101..d1a61bd 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/impls/NoOpOperationCallback.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/impls/NoOpOperationCallback.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/impls/NoOpOperationCallbackFactory.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/impls/NoOpOperationCallbackFactory.java
index 4c641a6..7a9ae4c 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/impls/NoOpOperationCallbackFactory.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/impls/NoOpOperationCallbackFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.common.impls;
 
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/impls/NodeFrontier.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/impls/NodeFrontier.java
index 56f5fdb..af3889a 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/impls/NodeFrontier.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/impls/NodeFrontier.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/impls/TreeIndexDiskOrderScanCursor.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/impls/TreeIndexDiskOrderScanCursor.java
index 738d987..0f97b0d 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/impls/TreeIndexDiskOrderScanCursor.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/impls/TreeIndexDiskOrderScanCursor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/DoubleArrayList.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/DoubleArrayList.java
index 318a102..4f94179 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/DoubleArrayList.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/DoubleArrayList.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/FieldLengthIgnoringMultiComparator.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/FieldLengthIgnoringMultiComparator.java
index 4e43a34..a9b7efa 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/FieldLengthIgnoringMultiComparator.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/FieldLengthIgnoringMultiComparator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/FieldLengthIgnoringSingleComparator.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/FieldLengthIgnoringSingleComparator.java
index d35297a..a342379 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/FieldLengthIgnoringSingleComparator.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/FieldLengthIgnoringSingleComparator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/FindTupleMode.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/FindTupleMode.java
index 5002189..7af7494 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/FindTupleMode.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/FindTupleMode.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/FindTupleNoExactMatchPolicy.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/FindTupleNoExactMatchPolicy.java
index 8b3f7f5..ecfe227 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/FindTupleNoExactMatchPolicy.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/FindTupleNoExactMatchPolicy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/IndexOp.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/IndexOp.java
index 77ad7ff..e05f03b 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/IndexOp.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/IndexOp.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/IndexOperation.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/IndexOperation.java
index 1885348..91207e8 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/IndexOperation.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/IndexOperation.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/IntArrayList.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/IntArrayList.java
index 12bc997..c138ddb 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/IntArrayList.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/IntArrayList.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/LongArrayList.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/LongArrayList.java
index cb4c8fe..7c462bf 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/LongArrayList.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/LongArrayList.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/MultiComparator.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/MultiComparator.java
index 567973d..bf93317 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/MultiComparator.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/MultiComparator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/SingleComparator.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/SingleComparator.java
index c8841f3..654f20b 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/SingleComparator.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/SingleComparator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/SlotOffTupleOff.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/SlotOffTupleOff.java
index 7e9042c..4118480 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/SlotOffTupleOff.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/ophelpers/SlotOffTupleOff.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/ConcatenatingTupleReference.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/ConcatenatingTupleReference.java
index c5662b1..16a47f7 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/ConcatenatingTupleReference.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/ConcatenatingTupleReference.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/PermutingFrameTupleReference.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/PermutingFrameTupleReference.java
index 5f97f04..717d932 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/PermutingFrameTupleReference.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/PermutingFrameTupleReference.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/PermutingTupleReference.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/PermutingTupleReference.java
index 0272ff6..46000f8 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/PermutingTupleReference.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/PermutingTupleReference.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/SimpleTupleReference.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/SimpleTupleReference.java
index a470d04..ba7e73d 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/SimpleTupleReference.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/SimpleTupleReference.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/SimpleTupleWriter.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/SimpleTupleWriter.java
index 8c41dd3..fa69971 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/SimpleTupleWriter.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/SimpleTupleWriter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/SimpleTupleWriterFactory.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/SimpleTupleWriterFactory.java
index 10d4c3a..a395da7 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/SimpleTupleWriterFactory.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/SimpleTupleWriterFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/TypeAwareTupleReference.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/TypeAwareTupleReference.java
index 4776bdd..8b989ba 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/TypeAwareTupleReference.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/TypeAwareTupleReference.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/TypeAwareTupleWriter.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/TypeAwareTupleWriter.java
index 1e12bea..79edb8c 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/TypeAwareTupleWriter.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/TypeAwareTupleWriter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/TypeAwareTupleWriterFactory.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/TypeAwareTupleWriterFactory.java
index 9e6ba6f..9a916d6 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/TypeAwareTupleWriterFactory.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/TypeAwareTupleWriterFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/VarLenIntEncoderDecoder.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/VarLenIntEncoderDecoder.java
index 979bbd3..adbbe48 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/VarLenIntEncoderDecoder.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/tuples/VarLenIntEncoderDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/util/HashMultiSet.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/util/HashMultiSet.java
index e4ccdcb..31d8463 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/util/HashMultiSet.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/util/HashMultiSet.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/util/IndexFileNameUtil.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/util/IndexFileNameUtil.java
index fbab3cf..5b3ccb7 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/util/IndexFileNameUtil.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/util/IndexFileNameUtil.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/util/TreeIndexBufferCacheWarmup.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/util/TreeIndexBufferCacheWarmup.java
index 65ea8de..5b38558 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/util/TreeIndexBufferCacheWarmup.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/util/TreeIndexBufferCacheWarmup.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.common.util;
 
 import java.util.ArrayList;
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/util/TreeIndexStats.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/util/TreeIndexStats.java
index d5d9b5d..23b002f 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/util/TreeIndexStats.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/util/TreeIndexStats.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.common.util;
 
 import java.text.DecimalFormat;
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/util/TreeIndexStatsGatherer.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/util/TreeIndexStatsGatherer.java
index eeacccd..2426c26 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/util/TreeIndexStatsGatherer.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/util/TreeIndexStatsGatherer.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.common.util;
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
diff --git a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/util/TreeIndexUtils.java b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/util/TreeIndexUtils.java
index a1e493d..2f177f6 100644
--- a/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/util/TreeIndexUtils.java
+++ b/hyracks/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/util/TreeIndexUtils.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-btree/pom.xml b/hyracks/hyracks-storage-am-lsm-btree/pom.xml
index 29c2ab3..158443d 100644
--- a/hyracks/hyracks-storage-am-lsm-btree/pom.xml
+++ b/hyracks/hyracks-storage-am-lsm-btree/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-storage-am-lsm-btree</artifactId>
@@ -5,7 +19,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -25,21 +39,21 @@
     <dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-storage-am-btree</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency> 
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-storage-am-bloomfilter</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency> 
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-storage-am-lsm-common</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>  	
diff --git a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/dataflow/LSMBTreeDataflowHelper.java b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/dataflow/LSMBTreeDataflowHelper.java
index eb2e760..f217419 100644
--- a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/dataflow/LSMBTreeDataflowHelper.java
+++ b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/dataflow/LSMBTreeDataflowHelper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -17,54 +17,42 @@
 
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndex;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexMetaDataFrameFactory;
 import edu.uci.ics.hyracks.storage.am.common.dataflow.AbstractTreeIndexOperatorDescriptor;
 import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndexOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.common.frames.LIFOMetaDataFrameFactory;
 import edu.uci.ics.hyracks.storage.am.lsm.btree.util.LSMBTreeUtils;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.IInMemoryBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationScheduler;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicy;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerProvider;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.dataflow.AbstractLSMIndexDataflowHelper;
-import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.InMemoryBufferCache;
-import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.InMemoryFreePageManager;
-import edu.uci.ics.hyracks.storage.common.buffercache.HeapBufferAllocator;
-import edu.uci.ics.hyracks.storage.common.file.TransientFileMapManager;
 
 public class LSMBTreeDataflowHelper extends AbstractLSMIndexDataflowHelper {
 
     public LSMBTreeDataflowHelper(IIndexOperatorDescriptor opDesc, IHyracksTaskContext ctx, int partition,
-            ILSMMergePolicy mergePolicy, ILSMOperationTrackerFactory opTrackerFactory,
-            ILSMIOOperationScheduler ioScheduler, ILSMIOOperationCallbackProvider ioOpCallbackProvider) {
-        this(opDesc, ctx, partition, DEFAULT_MEM_PAGE_SIZE, DEFAULT_MEM_NUM_PAGES,
-                DEFAULT_BLOOM_FILTER_FALSE_POSITIVE_RATE, mergePolicy, opTrackerFactory, ioScheduler,
-                ioOpCallbackProvider);
+            IVirtualBufferCache virtualBufferCache, ILSMMergePolicy mergePolicy,
+            ILSMOperationTrackerProvider opTrackerFactory, ILSMIOOperationScheduler ioScheduler,
+            ILSMIOOperationCallbackProvider ioOpCallbackProvider) {
+        this(opDesc, ctx, partition, virtualBufferCache, DEFAULT_BLOOM_FILTER_FALSE_POSITIVE_RATE, mergePolicy,
+                opTrackerFactory, ioScheduler, ioOpCallbackProvider);
     }
 
     public LSMBTreeDataflowHelper(IIndexOperatorDescriptor opDesc, IHyracksTaskContext ctx, int partition,
-            int memPageSize, int memNumPages, double bloomFilterFalsePositiveRate, ILSMMergePolicy mergePolicy,
-            ILSMOperationTrackerFactory opTrackerFactory, ILSMIOOperationScheduler ioScheduler,
+            IVirtualBufferCache virtualBufferCache, double bloomFilterFalsePositiveRate, ILSMMergePolicy mergePolicy,
+            ILSMOperationTrackerProvider opTrackerFactory, ILSMIOOperationScheduler ioScheduler,
             ILSMIOOperationCallbackProvider ioOpCallbackProvider) {
-        super(opDesc, ctx, partition, memPageSize, memNumPages, bloomFilterFalsePositiveRate, mergePolicy,
-                opTrackerFactory, ioScheduler, ioOpCallbackProvider);
+        super(opDesc, ctx, partition, virtualBufferCache, bloomFilterFalsePositiveRate, mergePolicy, opTrackerFactory,
+                ioScheduler, ioOpCallbackProvider);
     }
 
     @Override
     public ITreeIndex createIndexInstance() throws HyracksDataException {
         AbstractTreeIndexOperatorDescriptor treeOpDesc = (AbstractTreeIndexOperatorDescriptor) opDesc;
-        ITreeIndexMetaDataFrameFactory metaDataFrameFactory = new LIFOMetaDataFrameFactory();
-        IInMemoryBufferCache memBufferCache = new InMemoryBufferCache(new HeapBufferAllocator(), memPageSize,
-                memNumPages, new TransientFileMapManager());
-        IInMemoryFreePageManager memFreePageManager = new InMemoryFreePageManager(memNumPages, metaDataFrameFactory);
-        return LSMBTreeUtils.createLSMTree(memBufferCache, memFreePageManager, ctx.getIOManager(), file, opDesc
-                .getStorageManager().getBufferCache(ctx), opDesc.getStorageManager().getFileMapProvider(ctx),
-                treeOpDesc.getTreeIndexTypeTraits(), treeOpDesc.getTreeIndexComparatorFactories(), treeOpDesc
-                        .getTreeIndexBloomFilterKeyFields(), bloomFilterFalsePositiveRate, mergePolicy,
-                opTrackerFactory, ioScheduler, ioOpCallbackProvider,
-                opDesc.getFileSplitProvider().getFileSplits()[partition].getIODeviceId());
+        return LSMBTreeUtils.createLSMTree(virtualBufferCache, file, opDesc.getStorageManager().getBufferCache(ctx),
+                opDesc.getStorageManager().getFileMapProvider(ctx), treeOpDesc.getTreeIndexTypeTraits(),
+                treeOpDesc.getTreeIndexComparatorFactories(), treeOpDesc.getTreeIndexBloomFilterKeyFields(),
+                bloomFilterFalsePositiveRate, mergePolicy, opTrackerFactory.getOperationTracker(ctx), ioScheduler,
+                ioOpCallbackProvider);
     }
 }
diff --git a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/dataflow/LSMBTreeDataflowHelperFactory.java b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/dataflow/LSMBTreeDataflowHelperFactory.java
index e706786..d331880 100644
--- a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/dataflow/LSMBTreeDataflowHelperFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/dataflow/LSMBTreeDataflowHelperFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -21,26 +21,28 @@
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationSchedulerProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicyProvider;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerProvider;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCacheProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.dataflow.AbstractLSMIndexDataflowHelperFactory;
 
 public class LSMBTreeDataflowHelperFactory extends AbstractLSMIndexDataflowHelperFactory {
 
     private static final long serialVersionUID = 1L;
 
-    public LSMBTreeDataflowHelperFactory(ILSMMergePolicyProvider mergePolicyProvider,
-            ILSMOperationTrackerFactory opTrackerFactory, ILSMIOOperationSchedulerProvider ioSchedulerProvider,
-            ILSMIOOperationCallbackProvider ioOpCallbackProvider, int memPageSize, int memNumPages,
+    public LSMBTreeDataflowHelperFactory(IVirtualBufferCacheProvider virtualBufferCacheProvider,
+            ILSMMergePolicyProvider mergePolicyProvider, ILSMOperationTrackerProvider opTrackerFactory,
+            ILSMIOOperationSchedulerProvider ioSchedulerProvider, ILSMIOOperationCallbackProvider ioOpCallbackProvider,
             double bloomFilterFalsePositiveRate) {
-        super(mergePolicyProvider, opTrackerFactory, ioSchedulerProvider, ioOpCallbackProvider, memPageSize,
-                memNumPages, bloomFilterFalsePositiveRate);
+        super(virtualBufferCacheProvider, mergePolicyProvider, opTrackerFactory, ioSchedulerProvider,
+                ioOpCallbackProvider, bloomFilterFalsePositiveRate);
     }
 
     @Override
     public IndexDataflowHelper createIndexDataflowHelper(IIndexOperatorDescriptor opDesc, IHyracksTaskContext ctx,
             int partition) {
-        return new LSMBTreeDataflowHelper(opDesc, ctx, partition, memPageSize, memNumPages,
-                bloomFilterFalsePositiveRate, mergePolicyProvider.getMergePolicy(ctx), opTrackerFactory,
-                ioSchedulerProvider.getIOScheduler(ctx), ioOpCallbackProvider);
+        return new LSMBTreeDataflowHelper(opDesc, ctx, partition,
+                virtualBufferCacheProvider.getVirtualBufferCache(ctx), bloomFilterFalsePositiveRate,
+                mergePolicyProvider.getMergePolicy(ctx), opTrackerFactory, ioSchedulerProvider.getIOScheduler(ctx),
+                ioOpCallbackProvider);
     }
 }
diff --git a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/AntimatterAwareTupleAcceptor.java b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/AntimatterAwareTupleAcceptor.java
index e88aea6..51b8b91 100644
--- a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/AntimatterAwareTupleAcceptor.java
+++ b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/AntimatterAwareTupleAcceptor.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.btree.impls;
 
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
diff --git a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTree.java b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTree.java
index 1652f5a..3557d73 100644
--- a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTree.java
+++ b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTree.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -34,7 +34,6 @@
 import edu.uci.ics.hyracks.storage.am.btree.impls.BTreeRangeSearchCursor;
 import edu.uci.ics.hyracks.storage.am.btree.impls.RangePredicate;
 import edu.uci.ics.hyracks.storage.am.common.api.IFreePageManager;
-import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndexAccessor;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndexBulkLoader;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndexCursor;
@@ -51,7 +50,6 @@
 import edu.uci.ics.hyracks.storage.am.common.ophelpers.IndexOperation;
 import edu.uci.ics.hyracks.storage.am.common.ophelpers.MultiComparator;
 import edu.uci.ics.hyracks.storage.am.lsm.btree.tuples.LSMBTreeTupleReference;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.IInMemoryBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMComponent;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMHarness;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperation;
@@ -63,8 +61,9 @@
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndexFileManager;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndexOperationContext;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicy;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
-import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.InMemoryBufferCache;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTracker;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
+import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.VirtualFreePageManager;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.AbstractLSMIndex;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.BlockingIOOperationCallbackWrapper;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.LSMComponentFileReferences;
@@ -89,20 +88,19 @@
     private final ITreeIndexFrameFactory deleteLeafFrameFactory;
     private final IBinaryComparatorFactory[] cmpFactories;
 
-    public LSMBTree(IInMemoryBufferCache memBufferCache, IInMemoryFreePageManager memFreePageManager,
-            ITreeIndexFrameFactory interiorFrameFactory, ITreeIndexFrameFactory insertLeafFrameFactory,
-            ITreeIndexFrameFactory deleteLeafFrameFactory, ILSMIndexFileManager fileManager,
-            TreeIndexFactory<BTree> diskBTreeFactory, TreeIndexFactory<BTree> bulkLoadBTreeFactory,
-            BloomFilterFactory bloomFilterFactory, double bloomFilterFalsePositiveRate,
-            IFileMapProvider diskFileMapProvider, int fieldCount, IBinaryComparatorFactory[] cmpFactories,
-            ILSMMergePolicy mergePolicy, ILSMOperationTrackerFactory opTrackerFactory,
+    public LSMBTree(IVirtualBufferCache virtualBufferCache, ITreeIndexFrameFactory interiorFrameFactory,
+            ITreeIndexFrameFactory insertLeafFrameFactory, ITreeIndexFrameFactory deleteLeafFrameFactory,
+            ILSMIndexFileManager fileManager, TreeIndexFactory<BTree> diskBTreeFactory,
+            TreeIndexFactory<BTree> bulkLoadBTreeFactory, BloomFilterFactory bloomFilterFactory,
+            double bloomFilterFalsePositiveRate, IFileMapProvider diskFileMapProvider, int fieldCount,
+            IBinaryComparatorFactory[] cmpFactories, ILSMMergePolicy mergePolicy, ILSMOperationTracker opTracker,
             ILSMIOOperationScheduler ioScheduler, ILSMIOOperationCallbackProvider ioOpCallbackProvider) {
-        super(memFreePageManager, diskBTreeFactory.getBufferCache(), fileManager, diskFileMapProvider,
-                bloomFilterFalsePositiveRate, mergePolicy, opTrackerFactory, ioScheduler, ioOpCallbackProvider);
-        mutableComponent = new LSMBTreeMutableComponent(new BTree(memBufferCache,
-                ((InMemoryBufferCache) memBufferCache).getFileMapProvider(), memFreePageManager, interiorFrameFactory,
-                insertLeafFrameFactory, cmpFactories, fieldCount, new FileReference(new File("membtree"))),
-                memFreePageManager);
+        super(virtualBufferCache, diskBTreeFactory.getBufferCache(), fileManager, diskFileMapProvider,
+                bloomFilterFalsePositiveRate, mergePolicy, opTracker, ioScheduler, ioOpCallbackProvider);
+        mutableComponent = new LSMBTreeMutableComponent(new BTree(virtualBufferCache,
+                virtualBufferCache.getFileMapProvider(), new VirtualFreePageManager(virtualBufferCache.getNumPages()),
+                interiorFrameFactory, insertLeafFrameFactory, cmpFactories, fieldCount, new FileReference(new File(
+                        fileManager.getBaseDir() + "_virtual"))), virtualBufferCache);
         this.insertLeafFrameFactory = insertLeafFrameFactory;
         this.deleteLeafFrameFactory = deleteLeafFrameFactory;
         this.cmpFactories = cmpFactories;
@@ -124,10 +122,10 @@
     @Override
     public synchronized void activate() throws HyracksDataException {
         if (isActivated) {
-            return;
+            throw new HyracksDataException("Failed to activate the index since it is already activated.");
         }
 
-        ((InMemoryBufferCache) mutableComponent.getBTree().getBufferCache()).open();
+        ((IVirtualBufferCache) mutableComponent.getBTree().getBufferCache()).open();
         mutableComponent.getBTree().create();
         mutableComponent.getBTree().activate();
         List<ILSMComponent> immutableComponents = componentsRef.get();
@@ -155,7 +153,7 @@
     @Override
     public synchronized void deactivate(boolean flushOnExit) throws HyracksDataException {
         if (!isActivated) {
-            return;
+            throw new HyracksDataException("Failed to deactivate the index since it is already deactivated.");
         }
 
         if (flushOnExit) {
@@ -180,7 +178,7 @@
         }
         mutableComponent.getBTree().deactivate();
         mutableComponent.getBTree().destroy();
-        ((InMemoryBufferCache) mutableComponent.getBTree().getBufferCache()).close();
+        ((IVirtualBufferCache) mutableComponent.getBTree().getBufferCache()).close();
         isActivated = false;
     }
 
@@ -213,6 +211,7 @@
 
         List<ILSMComponent> immutableComponents = componentsRef.get();
         mutableComponent.getBTree().clear();
+        mutableComponent.reset();
         for (ILSMComponent c : immutableComponents) {
             LSMBTreeImmutableComponent component = (LSMBTreeImmutableComponent) c;
             component.getBloomFilter().deactivate();
@@ -371,7 +370,7 @@
 
         LSMBTreeImmutableComponent component = createDiskComponent(componentFactory, flushOp.getBTreeFlushTarget(),
                 flushOp.getBloomFilterFlushTarget(), true);
-        IIndexBulkLoader bulkLoader = component.getBTree().createBulkLoader(1.0f, false, numElements);
+        IIndexBulkLoader bulkLoader = component.getBTree().createBulkLoader(1.0f, false, numElements, false);
         IIndexBulkLoader builder = component.getBloomFilter().createBuilder(numElements,
                 bloomFilterSpec.getNumHashes(), bloomFilterSpec.getNumBucketsPerElements());
 
@@ -431,7 +430,7 @@
         LSMBTreeImmutableComponent mergedComponent = createDiskComponent(componentFactory,
                 mergeOp.getBTreeMergeTarget(), mergeOp.getBloomFilterMergeTarget(), true);
 
-        IIndexBulkLoader bulkLoader = mergedComponent.getBTree().createBulkLoader(1.0f, false, numElements);
+        IIndexBulkLoader bulkLoader = mergedComponent.getBTree().createBulkLoader(1.0f, false, numElements, false);
         IIndexBulkLoader builder = mergedComponent.getBloomFilter().createBuilder(numElements,
                 bloomFilterSpec.getNumHashes(), bloomFilterSpec.getNumBucketsPerElements());
         try {
@@ -466,10 +465,10 @@
     }
 
     @Override
-    public IIndexBulkLoader createBulkLoader(float fillLevel, boolean verifyInput, long numElementsHint)
-            throws TreeIndexException {
+    public IIndexBulkLoader createBulkLoader(float fillLevel, boolean verifyInput, long numElementsHint,
+            boolean checkIfEmptyIndex) throws TreeIndexException {
         try {
-            return new LSMBTreeBulkLoader(fillLevel, verifyInput, numElementsHint);
+            return new LSMBTreeBulkLoader(fillLevel, verifyInput, numElementsHint, checkIfEmptyIndex);
         } catch (HyracksDataException e) {
             throw new TreeIndexException(e);
         }
@@ -500,19 +499,22 @@
         private final ILSMComponent component;
         private final BTreeBulkLoader bulkLoader;
         private final IIndexBulkLoader builder;
-        private boolean endHasBeenCalled = false;
+        private boolean cleanedUpArtifacts = false;
+        private boolean isEmptyComponent = true;
+        private boolean endedBloomFilterLoad = false;
 
-        public LSMBTreeBulkLoader(float fillFactor, boolean verifyInput, long numElementsHint)
+        public LSMBTreeBulkLoader(float fillFactor, boolean verifyInput, long numElementsHint, boolean checkIfEmptyIndex)
                 throws TreeIndexException, HyracksDataException {
+            if (checkIfEmptyIndex && !isEmptyIndex()) {
+                throw new TreeIndexException("Cannot load an index that is not empty");
+            }
             try {
                 component = createBulkLoadTarget();
-            } catch (HyracksDataException e) {
-                throw new TreeIndexException(e);
-            } catch (IndexException e) {
+            } catch (HyracksDataException | IndexException e) {
                 throw new TreeIndexException(e);
             }
             bulkLoader = (BTreeBulkLoader) ((LSMBTreeImmutableComponent) component).getBTree().createBulkLoader(
-                    fillFactor, verifyInput, numElementsHint);
+                    fillFactor, verifyInput, numElementsHint, false);
 
             int maxBucketsPerElement = BloomCalculations.maxBucketsPerElement(numElementsHint);
             BloomFilterSpecification bloomFilterSpec = BloomCalculations.computeBloomSpec(maxBucketsPerElement,
@@ -526,36 +528,45 @@
             try {
                 bulkLoader.add(tuple);
                 builder.add(tuple);
-            } catch (IndexException e) {
-                handleException();
+            } catch (IndexException | HyracksDataException | RuntimeException e) {
+                cleanupArtifacts();
                 throw e;
-            } catch (HyracksDataException e) {
-                handleException();
-                throw e;
-            } catch (RuntimeException e) {
-                handleException();
-                throw e;
+            }
+            if (isEmptyComponent) {
+                isEmptyComponent = false;
             }
         }
 
-        protected void handleException() throws HyracksDataException, IndexException {
-            if (!endHasBeenCalled) {
-                builder.end();
+        protected void cleanupArtifacts() throws HyracksDataException, IndexException {
+            if (!cleanedUpArtifacts) {
+                cleanedUpArtifacts = true;
+                // We make sure to end the bloom filter load to release latches.
+                if (!endedBloomFilterLoad) {
+                    builder.end();
+                    endedBloomFilterLoad = true;
+                }
+                ((LSMBTreeImmutableComponent) component).getBTree().deactivate();
+                ((LSMBTreeImmutableComponent) component).getBTree().destroy();
+                ((LSMBTreeImmutableComponent) component).getBloomFilter().deactivate();
+                ((LSMBTreeImmutableComponent) component).getBloomFilter().destroy();
             }
-            ((LSMBTreeImmutableComponent) component).getBTree().deactivate();
-            ((LSMBTreeImmutableComponent) component).getBTree().destroy();
-            ((LSMBTreeImmutableComponent) component).getBloomFilter().deactivate();
-            ((LSMBTreeImmutableComponent) component).getBloomFilter().destroy();
         }
 
         @Override
         public void end() throws HyracksDataException, IndexException {
-            bulkLoader.end();
-            builder.end();
-            endHasBeenCalled = true;
-            lsmHarness.addBulkLoadedComponent(component);
+            if (!cleanedUpArtifacts) {
+                if (!endedBloomFilterLoad) {
+                    builder.end();
+                    endedBloomFilterLoad = true;
+                }
+                bulkLoader.end();
+                if (isEmptyComponent) {
+                    cleanupArtifacts();
+                } else {
+                    lsmHarness.addBulkLoadedComponent(component);
+                }
+            }
         }
-
     }
 
     public LSMBTreeOpContext createOpContext(IModificationOperationCallback modificationCallback,
@@ -622,8 +633,8 @@
 
     @Override
     public long getMemoryAllocationSize() {
-        InMemoryBufferCache memBufferCache = (InMemoryBufferCache) mutableComponent.getBTree().getBufferCache();
-        return memBufferCache.getNumPages() * memBufferCache.getPageSize();
+        IBufferCache virtualBufferCache = mutableComponent.getBTree().getBufferCache();
+        return virtualBufferCache.getNumPages() * virtualBufferCache.getPageSize();
     }
 
     @Override
@@ -632,10 +643,7 @@
     }
 
     public boolean isEmptyIndex() throws HyracksDataException {
-        List<ILSMComponent> immutableComponents = componentsRef.get();
-        return immutableComponents.isEmpty()
-                && mutableComponent.getBTree().isEmptyTree(
-                        mutableComponent.getBTree().getInteriorFrameFactory().createFrame());
+        return componentsRef.get().isEmpty() && !mutableComponent.isModified();
     }
 
     @Override
diff --git a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeCursorInitialState.java b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeCursorInitialState.java
index 2b7029b..b5c6a45 100644
--- a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeCursorInitialState.java
+++ b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeCursorInitialState.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeFileManager.java b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeFileManager.java
index 0080c42..7e8fbb3 100644
--- a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeFileManager.java
+++ b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeFileManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -26,7 +26,6 @@
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.api.io.FileReference;
-import edu.uci.ics.hyracks.api.io.IIOManager;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndex;
 import edu.uci.ics.hyracks.storage.am.common.api.IndexException;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.AbstractLSMIndexFileManager;
@@ -39,9 +38,9 @@
 
     private final TreeIndexFactory<? extends ITreeIndex> btreeFactory;
 
-    public LSMBTreeFileManager(IIOManager ioManager, IFileMapProvider fileMapProvider, FileReference file,
-            TreeIndexFactory<? extends ITreeIndex> btreeFactory, int ioDeviceId) {
-        super(ioManager, fileMapProvider, file, null, ioDeviceId);
+    public LSMBTreeFileManager(IFileMapProvider fileMapProvider, FileReference file,
+            TreeIndexFactory<? extends ITreeIndex> btreeFactory) {
+        super(fileMapProvider, file, null);
         this.btreeFactory = btreeFactory;
     }
 
@@ -79,16 +78,16 @@
         ArrayList<ComparableFileName> allBTreeFiles = new ArrayList<ComparableFileName>();
         ArrayList<ComparableFileName> allBloomFilterFiles = new ArrayList<ComparableFileName>();
 
-        // Gather files from the IODeviceHandle.
+        // Gather files
 
         // List of valid BTree files.
-        cleanupAndGetValidFilesInternal(dev, btreeFilter, btreeFactory, allBTreeFiles);
+        cleanupAndGetValidFilesInternal(btreeFilter, btreeFactory, allBTreeFiles);
         HashSet<String> btreeFilesSet = new HashSet<String>();
         for (ComparableFileName cmpFileName : allBTreeFiles) {
             int index = cmpFileName.fileName.lastIndexOf(SPLIT_STRING);
             btreeFilesSet.add(cmpFileName.fileName.substring(0, index));
         }
-        validateFiles(dev, btreeFilesSet, allBloomFilterFiles, bloomFilterFilter, null);
+        validateFiles(btreeFilesSet, allBloomFilterFiles, bloomFilterFilter, null);
 
         // Sanity check.
         if (allBTreeFiles.size() != allBloomFilterFiles.size()) {
diff --git a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeFlushOperation.java b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeFlushOperation.java
index dfda07b..1aab213 100644
--- a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeFlushOperation.java
+++ b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeFlushOperation.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.btree.impls;
 
 import java.util.Collections;
diff --git a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeImmutableComponent.java b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeImmutableComponent.java
index daa86d9..affdef8 100644
--- a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeImmutableComponent.java
+++ b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeImmutableComponent.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.btree.impls;
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
diff --git a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeImmutableComponentFactory.java b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeImmutableComponentFactory.java
index e9da5a5..0efdc65 100644
--- a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeImmutableComponentFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeImmutableComponentFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeMergeOperation.java b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeMergeOperation.java
index 180fb9a..fd3f1fd 100644
--- a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeMergeOperation.java
+++ b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeMergeOperation.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeMutableComponent.java b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeMutableComponent.java
index d340599..0f3e3ce 100644
--- a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeMutableComponent.java
+++ b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeMutableComponent.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -17,17 +17,17 @@
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.storage.am.btree.impls.BTree;
-import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.AbstractMutableLSMComponent;
 
 public class LSMBTreeMutableComponent extends AbstractMutableLSMComponent {
 
     private final BTree btree;
-    private final IInMemoryFreePageManager mfpm;
+    private final IVirtualBufferCache vbc;
 
-    public LSMBTreeMutableComponent(BTree btree, IInMemoryFreePageManager mfpm) {
+    public LSMBTreeMutableComponent(BTree btree, IVirtualBufferCache vbc) {
         this.btree = btree;
-        this.mfpm = mfpm;
+        this.vbc = vbc;
     }
 
     public BTree getBTree() {
@@ -36,13 +36,16 @@
 
     @Override
     protected boolean isFull() {
-        return mfpm.isFull();
+        return vbc.isFull();
     }
 
     @Override
     protected void reset() throws HyracksDataException {
         super.reset();
-        btree.clear();
+        btree.deactivate();
+        btree.destroy();
+        btree.create();
+        btree.activate();
     }
 
 }
diff --git a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeOpContext.java b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeOpContext.java
index 9400d2d..ac62d9f 100644
--- a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeOpContext.java
+++ b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeOpContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -52,13 +52,12 @@
             ISearchOperationCallback searchCallback, int numBloomFilterKeyFields) {
         IBinaryComparatorFactory cmpFactories[] = memBTree.getComparatorFactories();
         if (cmpFactories[0] != null) {
-            this.cmp = MultiComparator.createIgnoreFieldLength(memBTree.getComparatorFactories());
+            this.cmp = MultiComparator.create(memBTree.getComparatorFactories());
         } else {
             this.cmp = null;
         }
 
-        bloomFilterCmp = MultiComparator.createIgnoreFieldLength(memBTree.getComparatorFactories(), 0,
-                numBloomFilterKeyFields);
+        bloomFilterCmp = MultiComparator.create(memBTree.getComparatorFactories(), 0, numBloomFilterKeyFields);
 
         this.memBTree = memBTree;
         this.insertLeafFrameFactory = insertLeafFrameFactory;
diff --git a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreePointSearchCursor.java b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreePointSearchCursor.java
index 5736200..64e0c28 100644
--- a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreePointSearchCursor.java
+++ b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreePointSearchCursor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -122,6 +122,7 @@
 
     @Override
     public void reset() throws HyracksDataException, IndexException {
+        try {
         if (rangeCursors != null) {
             for (int i = 0; i < rangeCursors.length; ++i) {
                 rangeCursors[i].reset();
@@ -130,6 +131,11 @@
         rangeCursors = null;
         nextHasBeenCalled = false;
         foundTuple = false;
+        } finally {
+            if (lsmHarness != null) {
+                lsmHarness.endSearch(opCtx);
+            }
+        }
     }
 
     @Override
diff --git a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeRangeSearchCursor.java b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeRangeSearchCursor.java
index 2923c53..4bdebae 100644
--- a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeRangeSearchCursor.java
+++ b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeRangeSearchCursor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeSearchCursor.java b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeSearchCursor.java
index 6872520..366fc10 100644
--- a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeSearchCursor.java
+++ b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/impls/LSMBTreeSearchCursor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/tuples/LSMBTreeCopyTupleWriter.java b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/tuples/LSMBTreeCopyTupleWriter.java
index 2a66644..88b7785 100644
--- a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/tuples/LSMBTreeCopyTupleWriter.java
+++ b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/tuples/LSMBTreeCopyTupleWriter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/tuples/LSMBTreeCopyTupleWriterFactory.java b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/tuples/LSMBTreeCopyTupleWriterFactory.java
index b73e9af..f574a3d 100644
--- a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/tuples/LSMBTreeCopyTupleWriterFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/tuples/LSMBTreeCopyTupleWriterFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/tuples/LSMBTreeTupleReference.java b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/tuples/LSMBTreeTupleReference.java
index 2c55792..35a495b 100644
--- a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/tuples/LSMBTreeTupleReference.java
+++ b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/tuples/LSMBTreeTupleReference.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/tuples/LSMBTreeTupleWriter.java b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/tuples/LSMBTreeTupleWriter.java
index 12aca6f..9426282 100644
--- a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/tuples/LSMBTreeTupleWriter.java
+++ b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/tuples/LSMBTreeTupleWriter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/tuples/LSMBTreeTupleWriterFactory.java b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/tuples/LSMBTreeTupleWriterFactory.java
index 8eb24a0..0cbefc9 100644
--- a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/tuples/LSMBTreeTupleWriterFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/tuples/LSMBTreeTupleWriterFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/util/LSMBTreeUtils.java b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/util/LSMBTreeUtils.java
index d92e93d..507ec02 100644
--- a/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/util/LSMBTreeUtils.java
+++ b/hyracks/hyracks-storage-am-lsm-btree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/btree/util/LSMBTreeUtils.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -18,13 +18,11 @@
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
 import edu.uci.ics.hyracks.api.io.FileReference;
-import edu.uci.ics.hyracks.api.io.IIOManager;
 import edu.uci.ics.hyracks.storage.am.bloomfilter.impls.BloomFilterFactory;
 import edu.uci.ics.hyracks.storage.am.btree.frames.BTreeNSMInteriorFrameFactory;
 import edu.uci.ics.hyracks.storage.am.btree.frames.BTreeNSMLeafFrameFactory;
 import edu.uci.ics.hyracks.storage.am.btree.impls.BTree;
 import edu.uci.ics.hyracks.storage.am.common.api.IFreePageManagerFactory;
-import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexFrameFactory;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexMetaDataFrameFactory;
 import edu.uci.ics.hyracks.storage.am.common.frames.LIFOMetaDataFrameFactory;
@@ -33,24 +31,23 @@
 import edu.uci.ics.hyracks.storage.am.lsm.btree.impls.LSMBTreeFileManager;
 import edu.uci.ics.hyracks.storage.am.lsm.btree.tuples.LSMBTreeCopyTupleWriterFactory;
 import edu.uci.ics.hyracks.storage.am.lsm.btree.tuples.LSMBTreeTupleWriterFactory;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.IInMemoryBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationScheduler;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndexFileManager;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicy;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTracker;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.BTreeFactory;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.TreeIndexFactory;
 import edu.uci.ics.hyracks.storage.common.buffercache.IBufferCache;
 import edu.uci.ics.hyracks.storage.common.file.IFileMapProvider;
 
 public class LSMBTreeUtils {
-    public static LSMBTree createLSMTree(IInMemoryBufferCache memBufferCache,
-            IInMemoryFreePageManager memFreePageManager, IIOManager ioManager, FileReference file,
+    public static LSMBTree createLSMTree(IVirtualBufferCache virtualBufferCache, FileReference file,
             IBufferCache diskBufferCache, IFileMapProvider diskFileMapProvider, ITypeTraits[] typeTraits,
             IBinaryComparatorFactory[] cmpFactories, int[] bloomFilterKeyFields, double bloomFilterFalsePositiveRate,
-            ILSMMergePolicy mergePolicy, ILSMOperationTrackerFactory opTrackerFactory,
-            ILSMIOOperationScheduler ioScheduler, ILSMIOOperationCallbackProvider ioOpCallbackProvider, int ioDeviceId) {
+            ILSMMergePolicy mergePolicy, ILSMOperationTracker opTracker, ILSMIOOperationScheduler ioScheduler,
+            ILSMIOOperationCallbackProvider ioOpCallbackProvider) {
         LSMBTreeTupleWriterFactory insertTupleWriterFactory = new LSMBTreeTupleWriterFactory(typeTraits,
                 cmpFactories.length, false);
         LSMBTreeTupleWriterFactory deleteTupleWriterFactory = new LSMBTreeTupleWriterFactory(typeTraits,
@@ -74,13 +71,12 @@
         BloomFilterFactory bloomFilterFactory = new BloomFilterFactory(diskBufferCache, diskFileMapProvider,
                 bloomFilterKeyFields);
 
-        ILSMIndexFileManager fileNameManager = new LSMBTreeFileManager(ioManager, diskFileMapProvider, file,
-                diskBTreeFactory, ioDeviceId);
+        ILSMIndexFileManager fileNameManager = new LSMBTreeFileManager(diskFileMapProvider, file, diskBTreeFactory);
 
-        LSMBTree lsmTree = new LSMBTree(memBufferCache, memFreePageManager, interiorFrameFactory,
-                insertLeafFrameFactory, deleteLeafFrameFactory, fileNameManager, diskBTreeFactory,
-                bulkLoadBTreeFactory, bloomFilterFactory, bloomFilterFalsePositiveRate, diskFileMapProvider,
-                typeTraits.length, cmpFactories, mergePolicy, opTrackerFactory, ioScheduler, ioOpCallbackProvider);
+        LSMBTree lsmTree = new LSMBTree(virtualBufferCache, interiorFrameFactory, insertLeafFrameFactory,
+                deleteLeafFrameFactory, fileNameManager, diskBTreeFactory, bulkLoadBTreeFactory, bloomFilterFactory,
+                bloomFilterFalsePositiveRate, diskFileMapProvider, typeTraits.length, cmpFactories, mergePolicy,
+                opTracker, ioScheduler, ioOpCallbackProvider);
         return lsmTree;
     }
 }
diff --git a/hyracks/hyracks-storage-am-lsm-common/pom.xml b/hyracks/hyracks-storage-am-lsm-common/pom.xml
index 715ec27..d52424b 100644
--- a/hyracks/hyracks-storage-am-lsm-common/pom.xml
+++ b/hyracks/hyracks-storage-am-lsm-common/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-storage-am-lsm-common</artifactId>
@@ -5,7 +19,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -25,21 +39,21 @@
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-storage-am-common</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-storage-am-bloomfilter</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-storage-am-btree</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>  	
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/IInMemoryBufferCache.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/IInMemoryBufferCache.java
deleted file mode 100644
index 082ad2f..0000000
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/IInMemoryBufferCache.java
+++ /dev/null
@@ -1,7 +0,0 @@
-package edu.uci.ics.hyracks.storage.am.lsm.common.api;
-
-import edu.uci.ics.hyracks.storage.common.buffercache.IBufferCacheInternal;
-
-public interface IInMemoryBufferCache extends IBufferCacheInternal {
-    public void open();
-}
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMComponent.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMComponent.java
index fa00f85..72a3e1f 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMComponent.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMComponent.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.common.api;
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMComponentFactory.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMComponentFactory.java
index 1f3a2b7..3197f01 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMComponentFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMComponentFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.common.api;
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMHarness.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMHarness.java
index 04d7fa3..a006b97 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMHarness.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMHarness.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIOOperation.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIOOperation.java
index 15fdc6e..c23dcea 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIOOperation.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIOOperation.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.common.api;
 
 import java.util.Set;
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIOOperationCallback.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIOOperationCallback.java
index bf12583..7086b59 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIOOperationCallback.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIOOperationCallback.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.common.api;
 
 import java.util.List;
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIOOperationCallbackFactory.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIOOperationCallbackFactory.java
index 52361ee..6dbce32 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIOOperationCallbackFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIOOperationCallbackFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.common.api;
 
 import java.io.Serializable;
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIOOperationCallbackProvider.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIOOperationCallbackProvider.java
index b5c9741..d5cf1a8 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIOOperationCallbackProvider.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIOOperationCallbackProvider.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.common.api;
 
 public interface ILSMIOOperationCallbackProvider {
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIOOperationScheduler.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIOOperationScheduler.java
index 6d96562..7e23062 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIOOperationScheduler.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIOOperationScheduler.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.common.api;
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIOOperationSchedulerProvider.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIOOperationSchedulerProvider.java
index 9737728..0b32660 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIOOperationSchedulerProvider.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIOOperationSchedulerProvider.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.common.api;
 
 import java.io.Serializable;
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIndex.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIndex.java
index e8c09c0..105b53a 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIndex.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIndex.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIndexAccessor.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIndexAccessor.java
index a85c24b..cd60ded 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIndexAccessor.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIndexAccessor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIndexAccessorInternal.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIndexAccessorInternal.java
index 8c28d47..946a80b 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIndexAccessorInternal.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIndexAccessorInternal.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.common.api;
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIndexFileManager.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIndexFileManager.java
index bc922fe..6d460d6 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIndexFileManager.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIndexFileManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIndexInternal.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIndexInternal.java
index f2c052b..c65c7cb 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIndexInternal.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIndexInternal.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -19,7 +19,6 @@
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
-import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndexCursor;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndexOperationContext;
 import edu.uci.ics.hyracks.storage.am.common.api.IModificationOperationCallback;
@@ -59,12 +58,12 @@
      */
     public void getOperationalComponents(ILSMIndexOperationContext ctx);
 
-    public IInMemoryFreePageManager getInMemoryFreePageManager();
-
     public List<ILSMComponent> getImmutableComponents();
 
     public void markAsValid(ILSMComponent lsmComponent) throws HyracksDataException;
 
     public void setFlushStatus(boolean needsFlush);
 
+    public boolean isFull();
+
 }
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIndexOperationContext.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIndexOperationContext.java
index 864d0e7..bbd2ca8 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIndexOperationContext.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMIndexOperationContext.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.common.api;
 
 import java.util.List;
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMMergePolicy.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMMergePolicy.java
index 877c6ff..5eaa6f6 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMMergePolicy.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMMergePolicy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMMergePolicyProvider.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMMergePolicyProvider.java
index 57a9609..cf56750 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMMergePolicyProvider.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMMergePolicyProvider.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.common.api;
 
 import java.io.Serializable;
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMOperationTracker.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMOperationTracker.java
index c3f1f3e..2659b27 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMOperationTracker.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMOperationTracker.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.common.api;
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
@@ -22,7 +36,7 @@
      * then this method does not block and returns false.
      * Otherwise, this method returns true, and the operation is considered 'active' in the index.
      */
-    public void beforeOperation(LSMOperationType opType, ISearchOperationCallback searchCallback,
+    public void beforeOperation(ILSMIndex index, LSMOperationType opType, ISearchOperationCallback searchCallback,
             IModificationOperationCallback modificationCallback) throws HyracksDataException;
 
     /**
@@ -31,7 +45,7 @@
      * After this method has been called, the operation is still considered 'active',
      * until the issuer of the operation declares it completed by calling completeOperation().
      */
-    public void afterOperation(LSMOperationType opType, ISearchOperationCallback searchCallback,
+    public void afterOperation(ILSMIndex index, LSMOperationType opType, ISearchOperationCallback searchCallback,
             IModificationOperationCallback modificationCallback) throws HyracksDataException;
 
     /**
@@ -39,6 +53,6 @@
      * The use of this method indicates that the operation is no longer 'active'
      * for the purpose of coordinating flushes/merges.
      */
-    public void completeOperation(LSMOperationType opType, ISearchOperationCallback searchCallback,
+    public void completeOperation(ILSMIndex index, LSMOperationType opType, ISearchOperationCallback searchCallback,
             IModificationOperationCallback modificationCallback) throws HyracksDataException;
 }
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMOperationTrackerFactory.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMOperationTrackerFactory.java
deleted file mode 100644
index db7ff6c..0000000
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMOperationTrackerFactory.java
+++ /dev/null
@@ -1,7 +0,0 @@
-package edu.uci.ics.hyracks.storage.am.lsm.common.api;
-
-import java.io.Serializable;
-
-public interface ILSMOperationTrackerFactory extends Serializable {
-    public ILSMOperationTracker createOperationTracker(ILSMIndex index);
-}
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMOperationTrackerProvider.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMOperationTrackerProvider.java
new file mode 100644
index 0000000..b9e9f37
--- /dev/null
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMOperationTrackerProvider.java
@@ -0,0 +1,23 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.hyracks.storage.am.lsm.common.api;
+
+import java.io.Serializable;
+
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+
+public interface ILSMOperationTrackerProvider extends Serializable {
+    public ILSMOperationTracker getOperationTracker(IHyracksTaskContext ctx);
+}
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMTreeTupleReference.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMTreeTupleReference.java
index 8d82673..0c5e7e0 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMTreeTupleReference.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/ILSMTreeTupleReference.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/IVirtualBufferCache.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/IVirtualBufferCache.java
new file mode 100644
index 0000000..f08cbc0
--- /dev/null
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/IVirtualBufferCache.java
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.hyracks.storage.am.lsm.common.api;
+
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.storage.common.buffercache.IBufferCache;
+import edu.uci.ics.hyracks.storage.common.file.IFileMapManager;
+
+public interface IVirtualBufferCache extends IBufferCache {
+    public void open() throws HyracksDataException;
+
+    public boolean isFull();
+
+    public void reset();
+
+    public IFileMapManager getFileMapProvider();
+}
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/IVirtualBufferCacheProvider.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/IVirtualBufferCacheProvider.java
new file mode 100644
index 0000000..cd75df0
--- /dev/null
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/api/IVirtualBufferCacheProvider.java
@@ -0,0 +1,23 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.hyracks.storage.am.lsm.common.api;
+
+import java.io.Serializable;
+
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+
+public interface IVirtualBufferCacheProvider extends Serializable {
+    public IVirtualBufferCache getVirtualBufferCache(IHyracksTaskContext ctx);
+}
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/dataflow/AbstractLSMIndexDataflowHelper.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/dataflow/AbstractLSMIndexDataflowHelper.java
index 6202518..e79a394 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/dataflow/AbstractLSMIndexDataflowHelper.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/dataflow/AbstractLSMIndexDataflowHelper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -21,38 +21,35 @@
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationScheduler;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicy;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerProvider;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
 
 public abstract class AbstractLSMIndexDataflowHelper extends IndexDataflowHelper {
 
-    protected static int DEFAULT_MEM_PAGE_SIZE = 32768;
-    protected static int DEFAULT_MEM_NUM_PAGES = 1000;
     protected static double DEFAULT_BLOOM_FILTER_FALSE_POSITIVE_RATE = 0.01;
 
-    protected final int memPageSize;
-    protected final int memNumPages;
     protected final double bloomFilterFalsePositiveRate;
 
+    protected final IVirtualBufferCache virtualBufferCache;
     protected final ILSMMergePolicy mergePolicy;
     protected final ILSMIOOperationScheduler ioScheduler;
-    protected final ILSMOperationTrackerFactory opTrackerFactory;
+    protected final ILSMOperationTrackerProvider opTrackerFactory;
     protected final ILSMIOOperationCallbackProvider ioOpCallbackProvider;
 
     public AbstractLSMIndexDataflowHelper(IIndexOperatorDescriptor opDesc, IHyracksTaskContext ctx, int partition,
-            ILSMMergePolicy mergePolicy, ILSMOperationTrackerFactory opTrackerFactory,
-            ILSMIOOperationScheduler ioScheduler, ILSMIOOperationCallbackProvider ioOpCallbackProvider) {
-        this(opDesc, ctx, partition, DEFAULT_MEM_PAGE_SIZE, DEFAULT_MEM_NUM_PAGES,
-                DEFAULT_BLOOM_FILTER_FALSE_POSITIVE_RATE, mergePolicy, opTrackerFactory, ioScheduler,
-                ioOpCallbackProvider);
+            IVirtualBufferCache virtualBufferCache, ILSMMergePolicy mergePolicy,
+            ILSMOperationTrackerProvider opTrackerFactory, ILSMIOOperationScheduler ioScheduler,
+            ILSMIOOperationCallbackProvider ioOpCallbackProvider) {
+        this(opDesc, ctx, partition, virtualBufferCache, DEFAULT_BLOOM_FILTER_FALSE_POSITIVE_RATE, mergePolicy,
+                opTrackerFactory, ioScheduler, ioOpCallbackProvider);
     }
 
     public AbstractLSMIndexDataflowHelper(IIndexOperatorDescriptor opDesc, IHyracksTaskContext ctx, int partition,
-            int memPageSize, int memNumPages, double bloomFilterFalsePositiveRate, ILSMMergePolicy mergePolicy,
-            ILSMOperationTrackerFactory opTrackerFactory, ILSMIOOperationScheduler ioScheduler,
+            IVirtualBufferCache virtualBufferCache, double bloomFilterFalsePositiveRate, ILSMMergePolicy mergePolicy,
+            ILSMOperationTrackerProvider opTrackerFactory, ILSMIOOperationScheduler ioScheduler,
             ILSMIOOperationCallbackProvider ioOpCallbackProvider) {
         super(opDesc, ctx, partition);
-        this.memPageSize = memPageSize;
-        this.memNumPages = memNumPages;
+        this.virtualBufferCache = virtualBufferCache;
         this.bloomFilterFalsePositiveRate = bloomFilterFalsePositiveRate;
         this.mergePolicy = mergePolicy;
         this.opTrackerFactory = opTrackerFactory;
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/dataflow/AbstractLSMIndexDataflowHelperFactory.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/dataflow/AbstractLSMIndexDataflowHelperFactory.java
index bc4271c..205bf27 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/dataflow/AbstractLSMIndexDataflowHelperFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/dataflow/AbstractLSMIndexDataflowHelperFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -19,29 +19,28 @@
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationSchedulerProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicyProvider;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerProvider;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCacheProvider;
 
 public abstract class AbstractLSMIndexDataflowHelperFactory implements IIndexDataflowHelperFactory {
     protected static final long serialVersionUID = 1L;
 
+    protected final IVirtualBufferCacheProvider virtualBufferCacheProvider;
     protected final ILSMMergePolicyProvider mergePolicyProvider;
-    protected final ILSMOperationTrackerFactory opTrackerFactory;
+    protected final ILSMOperationTrackerProvider opTrackerFactory;
     protected final ILSMIOOperationSchedulerProvider ioSchedulerProvider;
     protected final ILSMIOOperationCallbackProvider ioOpCallbackProvider;
-    protected final int memPageSize;
-    protected final int memNumPages;
     protected final double bloomFilterFalsePositiveRate;
 
-    public AbstractLSMIndexDataflowHelperFactory(ILSMMergePolicyProvider mergePolicyProvider,
-            ILSMOperationTrackerFactory opTrackerFactory, ILSMIOOperationSchedulerProvider ioSchedulerProvider,
-            ILSMIOOperationCallbackProvider ioOpCallbackProvider, int memPageSize, int memNumPages,
+    public AbstractLSMIndexDataflowHelperFactory(IVirtualBufferCacheProvider virtualBufferCacheProvider,
+            ILSMMergePolicyProvider mergePolicyProvider, ILSMOperationTrackerProvider opTrackerFactory,
+            ILSMIOOperationSchedulerProvider ioSchedulerProvider, ILSMIOOperationCallbackProvider ioOpCallbackProvider,
             double bloomFilterFalsePositiveRate) {
+        this.virtualBufferCacheProvider = virtualBufferCacheProvider;
         this.mergePolicyProvider = mergePolicyProvider;
         this.opTrackerFactory = opTrackerFactory;
         this.ioSchedulerProvider = ioSchedulerProvider;
         this.ioOpCallbackProvider = ioOpCallbackProvider;
-        this.memPageSize = memPageSize;
-        this.memNumPages = memNumPages;
         this.bloomFilterFalsePositiveRate = bloomFilterFalsePositiveRate;
     }
 }
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/dataflow/LSMIndexInsertUpdateDeleteOperatorNodePushable.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/dataflow/LSMIndexInsertUpdateDeleteOperatorNodePushable.java
index a3e84ed..4c69634 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/dataflow/LSMIndexInsertUpdateDeleteOperatorNodePushable.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/dataflow/LSMIndexInsertUpdateDeleteOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -39,7 +39,7 @@
     public void nextFrame(ByteBuffer buffer) throws HyracksDataException {
         accessor.reset(buffer);
         ILSMIndexAccessor lsmAccessor = (ILSMIndexAccessor) indexAccessor;
-        int lastFlushedTupleIndex = 0;
+        int nextFlushTupleIndex = 0;
         int tupleCount = accessor.getTupleCount();
         for (int i = 0; i < tupleCount; i++) {
             try {
@@ -55,32 +55,32 @@
                 switch (op) {
                     case INSERT: {
                         if (!lsmAccessor.tryInsert(tuple)) {
-                            flushPartialFrame(lastFlushedTupleIndex, i);
-                            lastFlushedTupleIndex = (i == 0) ? 0 : i - 1;
+                            flushPartialFrame(nextFlushTupleIndex, i);
+                            nextFlushTupleIndex = i;
                             lsmAccessor.insert(tuple);
                         }
                         break;
                     }
                     case DELETE: {
                         if (!lsmAccessor.tryDelete(tuple)) {
-                            flushPartialFrame(lastFlushedTupleIndex, i);
-                            lastFlushedTupleIndex = (i == 0) ? 0 : i - 1;
+                            flushPartialFrame(nextFlushTupleIndex, i);
+                            nextFlushTupleIndex = i;
                             lsmAccessor.delete(tuple);
                         }
                         break;
                     }
                     case UPSERT: {
                         if (!lsmAccessor.tryUpsert(tuple)) {
-                            flushPartialFrame(lastFlushedTupleIndex, i);
-                            lastFlushedTupleIndex = (i == 0) ? 0 : i - 1;
+                            flushPartialFrame(nextFlushTupleIndex, i);
+                            nextFlushTupleIndex = i;
                             lsmAccessor.upsert(tuple);
                         }
                         break;
                     }
                     case UPDATE: {
                         if (!lsmAccessor.tryUpdate(tuple)) {
-                            flushPartialFrame(lastFlushedTupleIndex, i);
-                            lastFlushedTupleIndex = (i == 0) ? 0 : i - 1;
+                            flushPartialFrame(nextFlushTupleIndex, i);
+                            nextFlushTupleIndex = i;
                             lsmAccessor.update(tuple);
                         }
                         break;
@@ -96,13 +96,13 @@
                 throw new HyracksDataException(e);
             }
         }
-        if (lastFlushedTupleIndex == 0) {
+        if (nextFlushTupleIndex == 0) {
             // No partial flushing was necessary. Forward entire frame.
             System.arraycopy(buffer.array(), 0, writeBuffer.array(), 0, buffer.capacity());
             FrameUtils.flushFrame(writeBuffer, writer);
         } else {
             // Flush remaining partial frame.
-            flushPartialFrame(lastFlushedTupleIndex, tupleCount);
+            flushPartialFrame(nextFlushTupleIndex, tupleCount);
         }
     }
 
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/dataflow/LSMTreeIndexInsertUpdateDeleteOperatorDescriptor.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/dataflow/LSMTreeIndexInsertUpdateDeleteOperatorDescriptor.java
index 6297576..7139583 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/dataflow/LSMTreeIndexInsertUpdateDeleteOperatorDescriptor.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/dataflow/LSMTreeIndexInsertUpdateDeleteOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -37,8 +37,8 @@
 
     private static final long serialVersionUID = 1L;
 
-    private final int[] fieldPermutation;
-    private final IndexOperation op;
+    protected final int[] fieldPermutation;
+    protected final IndexOperation op;
 
     public LSMTreeIndexInsertUpdateDeleteOperatorDescriptor(IOperatorDescriptorRegistry spec, RecordDescriptor recDesc,
             IStorageManagerInterface storageManager, IIndexLifecycleManagerProvider lifecycleManagerProvider,
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/freepage/DualIndexInMemoryBufferCache.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/freepage/DualIndexInMemoryBufferCache.java
deleted file mode 100644
index c24c473..0000000
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/freepage/DualIndexInMemoryBufferCache.java
+++ /dev/null
@@ -1,63 +0,0 @@
-/*
- * Copyright 2009-2010 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package edu.uci.ics.hyracks.storage.am.lsm.common.freepage;
-
-import java.nio.ByteBuffer;
-
-import edu.uci.ics.hyracks.storage.common.buffercache.ICacheMemoryAllocator;
-import edu.uci.ics.hyracks.storage.common.buffercache.ICachedPage;
-import edu.uci.ics.hyracks.storage.common.file.BufferedFileHandle;
-import edu.uci.ics.hyracks.storage.common.file.TransientFileMapManager;
-
-/**
- * In-memory buffer cache that supports two tree indexes.
- * We assume that the tree indexes have 2 fixed pages, one at index 0 (metadata page), and one at index 1 (root page).
- */
-public class DualIndexInMemoryBufferCache extends InMemoryBufferCache {
-
-    public DualIndexInMemoryBufferCache(ICacheMemoryAllocator allocator, int pageSize, int numPages) {
-        super(allocator, pageSize, numPages, new TransientFileMapManager());
-    }
-
-    @Override
-    public ICachedPage pin(long dpid, boolean newPage) {
-        int pageId = BufferedFileHandle.getPageId(dpid);
-        int fileId = BufferedFileHandle.getFileId(dpid);
-        if (pageId < pages.length) {
-            // Common case: Return regular page.
-            if (pageId == 0 || pageId == 1) {
-                return pages[pageId + 2 * fileId];
-            } else {
-                return pages[pageId];
-            }
-        } else {
-            // Rare case: Return overflow page, possibly expanding overflow
-            // array.
-            synchronized (overflowPages) {
-                int numNewPages = pageId - pages.length - overflowPages.size() + 1;
-                if (numNewPages > 0) {
-                    ByteBuffer[] buffers = allocator.allocate(pageSize, numNewPages);
-                    for (int i = 0; i < numNewPages; i++) {
-                        CachedPage overflowPage = new CachedPage(pages.length + overflowPages.size(), buffers[i]);
-                        overflowPages.add(overflowPage);
-                    }
-                }
-                return overflowPages.get(pageId - pages.length);
-            }
-        }
-    }
-
-}
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/freepage/DualIndexInMemoryFreePageManager.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/freepage/DualIndexInMemoryFreePageManager.java
deleted file mode 100644
index 7a2be7f..0000000
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/freepage/DualIndexInMemoryFreePageManager.java
+++ /dev/null
@@ -1,49 +0,0 @@
-/*
- * Copyright 2009-2010 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package edu.uci.ics.hyracks.storage.am.lsm.common.freepage;
-
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexMetaDataFrame;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexMetaDataFrameFactory;
-
-/**
- * In-memory free page manager that supports two tree indexes.
- * We assume that the tree indexes have 2 fixed pages, one at index 0 (metadata page), and one at index 1 (root page).
- */
-public class DualIndexInMemoryFreePageManager extends InMemoryFreePageManager {
-
-    public DualIndexInMemoryFreePageManager(int capacity, ITreeIndexMetaDataFrameFactory metaDataFrameFactory) {
-        super(capacity, metaDataFrameFactory);
-        // We start the currentPageId from 3, because the RTree uses
-        // the first page as metadata page, and the second page as root page.
-        // And the BTree uses the third page as metadata, and the third page as root page 
-        // (when returning free pages we first increment, then get)
-        currentPageId.set(3);
-    }
-
-    @Override
-    public void init(ITreeIndexMetaDataFrame metaFrame, int currentMaxPage) throws HyracksDataException {
-        currentPageId.set(3);
-    }
-
-    public int getCapacity() {
-        return capacity - 4;
-    }
-
-    public void reset() {
-        currentPageId.set(3);
-    }
-}
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/freepage/InMemoryBufferCache.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/freepage/InMemoryBufferCache.java
deleted file mode 100644
index 66d8ec2..0000000
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/freepage/InMemoryBufferCache.java
+++ /dev/null
@@ -1,206 +0,0 @@
-/*
- * Copyright 2009-2012 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package edu.uci.ics.hyracks.storage.am.lsm.common.freepage;
-
-import java.nio.ByteBuffer;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.concurrent.locks.ReadWriteLock;
-import java.util.concurrent.locks.ReentrantReadWriteLock;
-
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.api.io.FileReference;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.IInMemoryBufferCache;
-import edu.uci.ics.hyracks.storage.common.buffercache.ICacheMemoryAllocator;
-import edu.uci.ics.hyracks.storage.common.buffercache.ICachedPage;
-import edu.uci.ics.hyracks.storage.common.buffercache.ICachedPageInternal;
-import edu.uci.ics.hyracks.storage.common.file.BufferedFileHandle;
-import edu.uci.ics.hyracks.storage.common.file.IFileMapManager;
-import edu.uci.ics.hyracks.storage.common.file.IFileMapProvider;
-
-public class InMemoryBufferCache implements IInMemoryBufferCache {
-    protected final ICacheMemoryAllocator allocator;
-    protected final IFileMapManager fileMapManager;
-    protected final int pageSize;
-    protected final int numPages;
-    protected final List<CachedPage> overflowPages = new ArrayList<CachedPage>();
-    protected CachedPage[] pages;
-
-    public InMemoryBufferCache(ICacheMemoryAllocator allocator, int pageSize, int numPages,
-            IFileMapManager fileMapManager) {
-        this.allocator = allocator;
-        this.fileMapManager = fileMapManager;
-        this.pageSize = pageSize;
-        this.numPages = numPages;
-    }
-
-    public void open() {
-        pages = new CachedPage[numPages];
-        ByteBuffer[] buffers = allocator.allocate(pageSize, numPages);
-        for (int i = 0; i < buffers.length; ++i) {
-            pages[i] = new CachedPage(i, buffers[i]);
-        }
-    }
-
-    @Override
-    public ICachedPage pin(long dpid, boolean newPage) {
-        int pageId = BufferedFileHandle.getPageId(dpid);
-        if (pageId < pages.length) {
-            // Common case: Return regular page.
-            return pages[pageId];
-        } else {
-            // Rare case: Return overflow page, possibly expanding overflow array.
-            synchronized (overflowPages) {
-                int numNewPages = pageId - pages.length - overflowPages.size() + 1;
-                if (numNewPages > 0) {
-                    ByteBuffer[] buffers = allocator.allocate(pageSize, numNewPages);
-                    for (int i = 0; i < numNewPages; i++) {
-                        CachedPage overflowPage = new CachedPage(pages.length + overflowPages.size(), buffers[i]);
-                        overflowPages.add(overflowPage);
-                    }
-                }
-                return overflowPages.get(pageId - pages.length);
-            }
-        }
-    }
-
-    @Override
-    public ICachedPage tryPin(long dpid) throws HyracksDataException {
-        return pin(dpid, false);
-    }
-
-    @Override
-    public int getPageSize() {
-        return pageSize;
-    }
-
-    @Override
-    public int getNumPages() {
-        return numPages;
-    }
-
-    @Override
-    public ICachedPageInternal getPage(int cpid) {
-        return pages[cpid];
-    }
-
-    public int getNumOverflowPages() {
-        return overflowPages.size();
-    }
-
-    @Override
-    public void createFile(FileReference fileRef) throws HyracksDataException {
-        synchronized (fileMapManager) {
-            fileMapManager.registerFile(fileRef);
-        }
-    }
-
-    @Override
-    public void openFile(int fileId) throws HyracksDataException {
-        // Do nothing.
-    }
-
-    @Override
-    public void closeFile(int fileId) throws HyracksDataException {
-        // Do nothing.
-    }
-
-    @Override
-    public void deleteFile(int fileId, boolean flushDirtyPages) throws HyracksDataException {
-        synchronized (fileMapManager) {
-            fileMapManager.unregisterFile(fileId);
-        }
-    }
-
-    @Override
-    public void unpin(ICachedPage page) throws HyracksDataException {
-        // Do Nothing.
-    }
-
-    @Override
-    public void close() {
-        for (int i = 0; i < numPages; ++i) {
-            pages[i] = null;
-        }
-        overflowPages.clear();
-    }
-
-    public class CachedPage implements ICachedPageInternal {
-        private final int cpid;
-        private final ByteBuffer buffer;
-        private final ReadWriteLock latch;
-
-        public CachedPage(int cpid, ByteBuffer buffer) {
-            this.cpid = cpid;
-            this.buffer = buffer;
-            latch = new ReentrantReadWriteLock(true);
-        }
-
-        @Override
-        public ByteBuffer getBuffer() {
-            return buffer;
-        }
-
-        @Override
-        public Object getReplacementStrategyObject() {
-            // Do nothing.
-            return null;
-        }
-
-        @Override
-        public boolean pinIfGoodVictim() {
-            // Do nothing.
-            return false;
-        }
-
-        @Override
-        public int getCachedPageId() {
-            return cpid;
-        }
-
-        @Override
-        public void acquireReadLatch() {
-            latch.readLock().lock();
-        }
-
-        @Override
-        public void acquireWriteLatch() {
-            latch.writeLock().lock();
-        }
-
-        @Override
-        public void releaseReadLatch() {
-            latch.readLock().unlock();
-        }
-
-        @Override
-        public void releaseWriteLatch() {
-            latch.writeLock().unlock();
-        }
-    }
-
-    @Override
-    public void force(int fileId, boolean metadata) throws HyracksDataException {
-    }
-
-    @Override
-    public void flushDirtyPage(ICachedPage page) throws HyracksDataException {
-    }
-
-    public IFileMapProvider getFileMapProvider() {
-        return fileMapManager;
-    }
-}
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/freepage/InMemoryFreePageManager.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/freepage/VirtualFreePageManager.java
similarity index 83%
rename from hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/freepage/InMemoryFreePageManager.java
rename to hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/freepage/VirtualFreePageManager.java
index c601a9b..a6d95a4 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/freepage/InMemoryFreePageManager.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/freepage/VirtualFreePageManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -18,22 +18,20 @@
 import java.util.concurrent.atomic.AtomicInteger;
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
+import edu.uci.ics.hyracks.storage.am.common.api.IVirtualFreePageManager;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexMetaDataFrame;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexMetaDataFrameFactory;
 
-public class InMemoryFreePageManager implements IInMemoryFreePageManager {
+public class VirtualFreePageManager implements IVirtualFreePageManager {
     protected final int capacity;
     protected final AtomicInteger currentPageId = new AtomicInteger();
-    protected final ITreeIndexMetaDataFrameFactory metaDataFrameFactory;
 
-    public InMemoryFreePageManager(int capacity, ITreeIndexMetaDataFrameFactory metaDataFrameFactory) {
+    public VirtualFreePageManager(int capacity) {
         // We start the currentPageId from 1, because the BTree uses
         // the first page as metadata page, and the second page as root page.
         // (when returning free pages we first increment, then get)
         currentPageId.set(1);
         this.capacity = capacity;
-        this.metaDataFrameFactory = metaDataFrameFactory;
     }
 
     @Override
@@ -55,7 +53,7 @@
 
     @Override
     public ITreeIndexMetaDataFrameFactory getMetaDataFrameFactory() {
-        return metaDataFrameFactory;
+        return NullMetadataFrameFactory.INSTANCE;
     }
 
     public int getCapacity() {
@@ -66,10 +64,6 @@
         currentPageId.set(1);
     }
 
-    public boolean isFull() {
-        return currentPageId.get() >= capacity;
-    }
-
     @Override
     public void addFreePage(ITreeIndexMetaDataFrame metaFrame, int freePage) throws HyracksDataException {
     }
@@ -109,4 +103,14 @@
     public void close() {
         // Method doesn't make sense for this free page manager.
     }
+
+    private static class NullMetadataFrameFactory implements ITreeIndexMetaDataFrameFactory {
+        private static final NullMetadataFrameFactory INSTANCE = new NullMetadataFrameFactory();
+
+        @Override
+        public ITreeIndexMetaDataFrame createFrame() {
+            return null;
+        }
+
+    }
 }
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/AbstractImmutableLSMComponent.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/AbstractImmutableLSMComponent.java
index b6fc2f7..376c2e4 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/AbstractImmutableLSMComponent.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/AbstractImmutableLSMComponent.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.common.impls;
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
@@ -26,6 +40,7 @@
         }
 
         switch (opType) {
+            case FORCE_MODIFICATION:
             case MODIFICATION:
             case SEARCH:
                 readerCount++;
@@ -50,6 +65,7 @@
                 if (failedOperation) {
                     state = ComponentState.READABLE;
                 }
+            case FORCE_MODIFICATION:
             case MODIFICATION:
             case SEARCH:
                 readerCount--;
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/AbstractLSMIndex.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/AbstractLSMIndex.java
index 6782fbe..d9da9e5 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/AbstractLSMIndex.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/AbstractLSMIndex.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -21,7 +21,6 @@
 import java.util.concurrent.atomic.AtomicReference;
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndex;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexMetaDataFrame;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMComponent;
@@ -32,7 +31,7 @@
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndexInternal;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicy;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTracker;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
 import edu.uci.ics.hyracks.storage.common.buffercache.IBufferCache;
 import edu.uci.ics.hyracks.storage.common.buffercache.ICachedPage;
 import edu.uci.ics.hyracks.storage.common.file.BufferedFileHandle;
@@ -45,7 +44,7 @@
     protected final ILSMIOOperationCallbackProvider ioOpCallbackProvider;
 
     // In-memory components.   
-    protected final IInMemoryFreePageManager memFreePageManager;
+    protected final IVirtualBufferCache virtualBufferCache;
 
     // On-disk components.    
     protected final IBufferCache diskBufferCache;
@@ -58,19 +57,17 @@
 
     private boolean needsFlush = false;
 
-    public AbstractLSMIndex(IInMemoryFreePageManager memFreePageManager, IBufferCache diskBufferCache,
+    public AbstractLSMIndex(IVirtualBufferCache virtualBufferCache, IBufferCache diskBufferCache,
             ILSMIndexFileManager fileManager, IFileMapProvider diskFileMapProvider,
-            double bloomFilterFalsePositiveRate, ILSMMergePolicy mergePolicy,
-            ILSMOperationTrackerFactory opTrackerFactory, ILSMIOOperationScheduler ioScheduler,
-            ILSMIOOperationCallbackProvider ioOpCallbackProvider) {
-        this.memFreePageManager = memFreePageManager;
+            double bloomFilterFalsePositiveRate, ILSMMergePolicy mergePolicy, ILSMOperationTracker opTracker,
+            ILSMIOOperationScheduler ioScheduler, ILSMIOOperationCallbackProvider ioOpCallbackProvider) {
+        this.virtualBufferCache = virtualBufferCache;
         this.diskBufferCache = diskBufferCache;
         this.diskFileMapProvider = diskFileMapProvider;
         this.fileManager = fileManager;
         this.bloomFilterFalsePositiveRate = bloomFilterFalsePositiveRate;
         this.ioScheduler = ioScheduler;
         this.ioOpCallbackProvider = ioOpCallbackProvider;
-        ILSMOperationTracker opTracker = opTrackerFactory.createOperationTracker(this);
         lsmHarness = new LSMHarness(this, mergePolicy, opTracker);
         isActivated = false;
         componentsRef = new AtomicReference<List<ILSMComponent>>();
@@ -158,11 +155,6 @@
     }
 
     @Override
-    public IInMemoryFreePageManager getInMemoryFreePageManager() {
-        return memFreePageManager;
-    }
-
-    @Override
     public List<ILSMComponent> getImmutableComponents() {
         return componentsRef.get();
     }
@@ -188,6 +180,11 @@
     }
 
     @Override
+    public boolean isFull() {
+        return virtualBufferCache.isFull();
+    }
+
+    @Override
     public IBufferCache getBufferCache() {
         return diskBufferCache;
     }
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/AbstractLSMIndexFileManager.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/AbstractLSMIndexFileManager.java
index 99b62d8..a6425ce 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/AbstractLSMIndexFileManager.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/AbstractLSMIndexFileManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -28,8 +28,6 @@
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.api.io.FileReference;
-import edu.uci.ics.hyracks.api.io.IIOManager;
-import edu.uci.ics.hyracks.api.io.IODeviceHandle;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndex;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexMetaDataFrame;
 import edu.uci.ics.hyracks.storage.am.common.api.IndexException;
@@ -45,7 +43,6 @@
     protected static final String BLOOM_FILTER_STRING = "f";
 
     protected final IFileMapProvider fileMapProvider;
-    protected final IODeviceHandle dev;
 
     // baseDir should reflect dataset name and partition name.
     protected String baseDir;
@@ -55,15 +52,14 @@
 
     protected final TreeIndexFactory<? extends ITreeIndex> treeFactory;
 
-    public AbstractLSMIndexFileManager(IIOManager ioManager, IFileMapProvider fileMapProvider, FileReference file,
-            TreeIndexFactory<? extends ITreeIndex> treeFactory, int ioDeviceId) {
+    public AbstractLSMIndexFileManager(IFileMapProvider fileMapProvider, FileReference file,
+            TreeIndexFactory<? extends ITreeIndex> treeFactory) {
         this.baseDir = file.getFile().getPath();
         if (!baseDir.endsWith(System.getProperty("file.separator"))) {
             baseDir += System.getProperty("file.separator");
         }
         this.fileMapProvider = fileMapProvider;
         this.treeFactory = treeFactory;
-        this.dev = ioManager.getIODevices().get(ioDeviceId);
     }
 
     private static FilenameFilter fileNameFilter = new FilenameFilter() {
@@ -94,10 +90,10 @@
         }
     }
 
-    protected void cleanupAndGetValidFilesInternal(IODeviceHandle dev, FilenameFilter filter,
+    protected void cleanupAndGetValidFilesInternal(FilenameFilter filter,
             TreeIndexFactory<? extends ITreeIndex> treeFactory, ArrayList<ComparableFileName> allFiles)
             throws HyracksDataException, IndexException {
-        File dir = new File(dev.getPath(), baseDir);
+        File dir = new File(baseDir);
         String[] files = dir.list(filter);
         for (String fileName : files) {
             File file = new File(dir.getPath() + File.separator + fileName);
@@ -110,11 +106,11 @@
         }
     }
 
-    protected void validateFiles(IODeviceHandle dev, HashSet<String> groundTruth,
-            ArrayList<ComparableFileName> validFiles, FilenameFilter filter,
-            TreeIndexFactory<? extends ITreeIndex> treeFactory) throws HyracksDataException, IndexException {
+    protected void validateFiles(HashSet<String> groundTruth, ArrayList<ComparableFileName> validFiles,
+            FilenameFilter filter, TreeIndexFactory<? extends ITreeIndex> treeFactory) throws HyracksDataException,
+            IndexException {
         ArrayList<ComparableFileName> tmpAllInvListsFiles = new ArrayList<ComparableFileName>();
-        cleanupAndGetValidFilesInternal(dev, filter, treeFactory, tmpAllInvListsFiles);
+        cleanupAndGetValidFilesInternal(filter, treeFactory, tmpAllInvListsFiles);
         for (ComparableFileName cmpFileName : tmpAllInvListsFiles) {
             int index = cmpFileName.fileName.lastIndexOf(SPLIT_STRING);
             String file = cmpFileName.fileName.substring(0, index);
@@ -129,13 +125,13 @@
 
     @Override
     public void createDirs() {
-        File f = new File(dev.getPath(), baseDir);
+        File f = new File(baseDir);
         f.mkdirs();
     }
 
     @Override
     public void deleteDirs() {
-        File f = new File(dev.getPath(), baseDir);
+        File f = new File(baseDir);
         delete(f);
     }
 
@@ -155,7 +151,7 @@
     };
 
     protected FileReference createFlushFile(String relFlushFileName) {
-        return dev.createFileReference(relFlushFileName);
+        return new FileReference(new File(relFlushFileName));
     }
 
     protected FileReference createMergeFile(String relMergeFileName) {
@@ -185,12 +181,12 @@
         List<LSMComponentFileReferences> validFiles = new ArrayList<LSMComponentFileReferences>();
         ArrayList<ComparableFileName> allFiles = new ArrayList<ComparableFileName>();
 
-        // Gather files from the IODeviceHandle and delete invalid files
+        // Gather files and delete invalid files
         // There are two types of invalid files:
         // (1) The isValid flag is not set
         // (2) The file's interval is contained by some other file
         // Here, we only filter out (1).
-        cleanupAndGetValidFilesInternal(dev, fileNameFilter, treeFactory, allFiles);
+        cleanupAndGetValidFilesInternal(fileNameFilter, treeFactory, allFiles);
 
         if (allFiles.isEmpty()) {
             return validFiles;
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/AbstractMutableLSMComponent.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/AbstractMutableLSMComponent.java
index 5cde7bc..6ca6581 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/AbstractMutableLSMComponent.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/AbstractMutableLSMComponent.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.common.impls;
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
@@ -8,7 +22,7 @@
     private int readerCount;
     private int writerCount;
     private ComponentState state;
-    
+
     private boolean isModified;
 
     private enum ComponentState {
@@ -100,7 +114,6 @@
         }
         notifyAll();
     }
-    
 
     public void setIsModified() {
         isModified = true;
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/BTreeFactory.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/BTreeFactory.java
index 008c418..4387650 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/BTreeFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/BTreeFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/BlockingIOOperationCallbackWrapper.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/BlockingIOOperationCallbackWrapper.java
index 34e1f0d..2510311 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/BlockingIOOperationCallbackWrapper.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/BlockingIOOperationCallbackWrapper.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.common.impls;
 
 import java.util.List;
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/ConstantMergePolicy.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/ConstantMergePolicy.java
index 1c72abf..0ecfeb5 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/ConstantMergePolicy.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/ConstantMergePolicy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/ConstantMergePolicyProvider.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/ConstantMergePolicyProvider.java
index b404c9b..a7383c1 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/ConstantMergePolicyProvider.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/ConstantMergePolicyProvider.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.common.impls;
 
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/IndexFactory.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/IndexFactory.java
index 3feaecf..fee24dd 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/IndexFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/IndexFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/LSMComponentFileReferences.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/LSMComponentFileReferences.java
index 019dca4..d52663d 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/LSMComponentFileReferences.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/LSMComponentFileReferences.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/LSMComponentState.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/LSMComponentState.java
index e554a6e..f4f2f78 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/LSMComponentState.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/LSMComponentState.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/LSMHarness.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/LSMHarness.java
index 7372b86..1632725 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/LSMHarness.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/LSMHarness.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -49,10 +49,10 @@
     }
 
     private void threadExit(ILSMIndexOperationContext opCtx, LSMOperationType opType) throws HyracksDataException {
-        if (!lsmIndex.getFlushStatus() && lsmIndex.getInMemoryFreePageManager().isFull()) {
+        if (!lsmIndex.getFlushStatus() && lsmIndex.isFull()) {
             lsmIndex.setFlushStatus(true);
         }
-        opTracker.afterOperation(opType, opCtx.getSearchOperationCallback(), opCtx.getModificationCallback());
+        opTracker.afterOperation(lsmIndex, opType, opCtx.getSearchOperationCallback(), opCtx.getModificationCallback());
     }
 
     private boolean getAndEnterComponents(ILSMIndexOperationContext ctx, LSMOperationType opType, boolean tryOperation)
@@ -93,7 +93,7 @@
             }
         }
 
-        opTracker.beforeOperation(opType, ctx.getSearchOperationCallback(), ctx.getModificationCallback());
+        opTracker.beforeOperation(lsmIndex, opType, ctx.getSearchOperationCallback(), ctx.getModificationCallback());
         return true;
     }
 
@@ -162,7 +162,7 @@
     @Override
     public void noOp(ILSMIndexOperationContext ctx) throws HyracksDataException {
         LSMOperationType opType = LSMOperationType.NOOP;
-        opTracker.beforeOperation(opType, ctx.getSearchOperationCallback(), ctx.getModificationCallback());
+        opTracker.beforeOperation(lsmIndex, opType, ctx.getSearchOperationCallback(), ctx.getModificationCallback());
         threadExit(ctx, opType);
     }
 
@@ -191,7 +191,7 @@
             LOGGER.info(lsmIndex + ": flushing");
         }
         ILSMComponent newComponent = lsmIndex.flush(operation);
-        
+
         operation.getCallback().afterOperation(null, newComponent);
         lsmIndex.markAsValid(newComponent);
         operation.getCallback().afterFinalize(newComponent);
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/LSMIndexSearchCursor.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/LSMIndexSearchCursor.java
index 7f08ba4..b6ca21b 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/LSMIndexSearchCursor.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/LSMIndexSearchCursor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -68,16 +68,22 @@
         outputElement = null;
         needPush = false;
 
-        if (outputPriorityQueue != null) {
-            outputPriorityQueue.clear();
-        }
+        try {
+            if (outputPriorityQueue != null) {
+                outputPriorityQueue.clear();
+            }
 
-        if (rangeCursors != null) {
-            for (int i = 0; i < rangeCursors.length; i++) {
-                rangeCursors[i].reset();
+            if (rangeCursors != null) {
+                for (int i = 0; i < rangeCursors.length; i++) {
+                    rangeCursors[i].reset();
+                }
+            }
+            rangeCursors = null;
+        } finally {
+            if (lsmHarness != null) {
+                lsmHarness.endSearch(opCtx);
             }
         }
-        rangeCursors = null;
     }
 
     @Override
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/LSMOperationType.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/LSMOperationType.java
index 981cefe..d932e6d 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/LSMOperationType.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/LSMOperationType.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.common.impls;
 
 public enum LSMOperationType {
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/LSMTreeIndexAccessor.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/LSMTreeIndexAccessor.java
index 7cc29a5..6328b1d 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/LSMTreeIndexAccessor.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/LSMTreeIndexAccessor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/MultitenantVirtualBufferCache.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/MultitenantVirtualBufferCache.java
new file mode 100644
index 0000000..409cf96
--- /dev/null
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/MultitenantVirtualBufferCache.java
@@ -0,0 +1,118 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.hyracks.storage.am.lsm.common.impls;
+
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.api.io.FileReference;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
+import edu.uci.ics.hyracks.storage.common.buffercache.ICachedPage;
+import edu.uci.ics.hyracks.storage.common.file.IFileMapManager;
+
+public class MultitenantVirtualBufferCache implements IVirtualBufferCache {
+
+    private final IVirtualBufferCache vbc;
+    private int openCount;
+
+    public MultitenantVirtualBufferCache(IVirtualBufferCache virtualBufferCache) {
+        this.vbc = virtualBufferCache;
+        openCount = 0;
+    }
+
+    @Override
+    public void createFile(FileReference fileRef) throws HyracksDataException {
+        vbc.createFile(fileRef);
+    }
+
+    @Override
+    public void openFile(int fileId) throws HyracksDataException {
+        vbc.openFile(fileId);
+    }
+
+    @Override
+    public void closeFile(int fileId) throws HyracksDataException {
+        vbc.closeFile(fileId);
+    }
+
+    @Override
+    public void deleteFile(int fileId, boolean flushDirtyPages) throws HyracksDataException {
+        vbc.deleteFile(fileId, flushDirtyPages);
+    }
+
+    @Override
+    public ICachedPage tryPin(long dpid) throws HyracksDataException {
+        return vbc.tryPin(dpid);
+    }
+
+    @Override
+    public ICachedPage pin(long dpid, boolean newPage) throws HyracksDataException {
+        return vbc.pin(dpid, newPage);
+    }
+
+    @Override
+    public void unpin(ICachedPage page) throws HyracksDataException {
+        vbc.unpin(page);
+    }
+
+    @Override
+    public void flushDirtyPage(ICachedPage page) throws HyracksDataException {
+        vbc.flushDirtyPage(page);
+    }
+
+    @Override
+    public void force(int fileId, boolean metadata) throws HyracksDataException {
+        vbc.force(fileId, metadata);
+    }
+
+    @Override
+    public int getPageSize() {
+        return vbc.getPageSize();
+    }
+
+    @Override
+    public int getNumPages() {
+        return vbc.getNumPages();
+    }
+
+    @Override
+    public synchronized void close() throws HyracksDataException {
+        --openCount;
+        if (openCount == 0) {
+            vbc.close();
+        }
+    }
+
+    @Override
+    public synchronized void open() throws HyracksDataException {
+        ++openCount;
+        if (openCount == 1) {
+            vbc.open();
+        }
+    }
+
+    @Override
+    public boolean isFull() {
+        return vbc.isFull();
+    }
+
+    @Override
+    public void reset() {
+        vbc.reset();
+    }
+
+    @Override
+    public IFileMapManager getFileMapProvider() {
+        return vbc.getFileMapProvider();
+    }
+}
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/NoMergePolicy.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/NoMergePolicy.java
index 5d36c09..80ac6d8 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/NoMergePolicy.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/NoMergePolicy.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.common.impls;
 
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndex;
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/NoOpIOOperationCallback.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/NoOpIOOperationCallback.java
index b123b30..a43b44b 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/NoOpIOOperationCallback.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/NoOpIOOperationCallback.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.common.impls;
 
 import java.util.List;
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/NoOpOperationTrackerFactory.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/NoOpOperationTrackerFactory.java
deleted file mode 100644
index 97ec50e..0000000
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/NoOpOperationTrackerFactory.java
+++ /dev/null
@@ -1,48 +0,0 @@
-package edu.uci.ics.hyracks.storage.am.lsm.common.impls;
-
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.storage.am.common.api.IModificationOperationCallback;
-import edu.uci.ics.hyracks.storage.am.common.api.ISearchOperationCallback;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndex;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTracker;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
-
-/**
- * Operation tracker that does nothing.
- * WARNING: This op tracker should only be used for specific testing purposes.
- * It is assumed than an op tracker cooperates with an lsm index to synchronize flushes with
- * regular operations, and this implementation does no such tracking at all.
- */
-public class NoOpOperationTrackerFactory implements ILSMOperationTrackerFactory {
-    private static final long serialVersionUID = 1L;
-
-    public static NoOpOperationTrackerFactory INSTANCE = new NoOpOperationTrackerFactory();
-
-    @Override
-    public ILSMOperationTracker createOperationTracker(ILSMIndex index) {
-        return new ILSMOperationTracker() {
-
-            @Override
-            public void completeOperation(LSMOperationType opType, ISearchOperationCallback searchCallback,
-                    IModificationOperationCallback modificationCallback) throws HyracksDataException {
-                // Do nothing.
-            }
-
-            @Override
-            public void beforeOperation(LSMOperationType opType, ISearchOperationCallback searchCallback,
-                    IModificationOperationCallback modificationCallback) throws HyracksDataException {
-            }
-
-            @Override
-            public void afterOperation(LSMOperationType opType, ISearchOperationCallback searchCallback,
-                    IModificationOperationCallback modificationCallback) throws HyracksDataException {
-                // Do nothing.                        
-            }
-        };
-    }
-
-    // Enforce singleton.
-    private NoOpOperationTrackerFactory() {
-    }
-
-};
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/NoOpOperationTrackerProvider.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/NoOpOperationTrackerProvider.java
new file mode 100644
index 0000000..9bbb476
--- /dev/null
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/NoOpOperationTrackerProvider.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.hyracks.storage.am.lsm.common.impls;
+
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.storage.am.common.api.IModificationOperationCallback;
+import edu.uci.ics.hyracks.storage.am.common.api.ISearchOperationCallback;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndex;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTracker;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerProvider;
+
+/**
+ * Operation tracker that does nothing.
+ * WARNING: This op tracker should only be used for specific testing purposes.
+ * It is assumed than an op tracker cooperates with an lsm index to synchronize flushes with
+ * regular operations, and this implementation does no such tracking at all.
+ */
+public class NoOpOperationTrackerProvider implements ILSMOperationTrackerProvider {
+    private static final long serialVersionUID = 1L;
+
+    public static NoOpOperationTrackerProvider INSTANCE = new NoOpOperationTrackerProvider();
+
+    @Override
+    public ILSMOperationTracker getOperationTracker(IHyracksTaskContext ctx) {
+        return new ILSMOperationTracker() {
+
+            @Override
+            public void completeOperation(ILSMIndex index, LSMOperationType opType,
+                    ISearchOperationCallback searchCallback, IModificationOperationCallback modificationCallback)
+                    throws HyracksDataException {
+                // Do nothing.
+            }
+
+            @Override
+            public void beforeOperation(ILSMIndex index, LSMOperationType opType,
+                    ISearchOperationCallback searchCallback, IModificationOperationCallback modificationCallback)
+                    throws HyracksDataException {
+            }
+
+            @Override
+            public void afterOperation(ILSMIndex index, LSMOperationType opType,
+                    ISearchOperationCallback searchCallback, IModificationOperationCallback modificationCallback)
+                    throws HyracksDataException {
+                // Do nothing.                        
+            }
+        };
+    }
+
+    // Enforce singleton.
+    private NoOpOperationTrackerProvider() {
+    }
+
+};
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/SynchronousScheduler.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/SynchronousScheduler.java
index 9bbd394..5eb63a9 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/SynchronousScheduler.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/SynchronousScheduler.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.common.impls;
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/SynchronousSchedulerProvider.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/SynchronousSchedulerProvider.java
index 72d9d1d..b986dc9 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/SynchronousSchedulerProvider.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/SynchronousSchedulerProvider.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.common.impls;
 
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/ThreadCountingOperationTrackerFactory.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/ThreadCountingOperationTrackerFactory.java
deleted file mode 100644
index 3b4b00f..0000000
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/ThreadCountingOperationTrackerFactory.java
+++ /dev/null
@@ -1,21 +0,0 @@
-package edu.uci.ics.hyracks.storage.am.lsm.common.impls;
-
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndex;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTracker;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
-
-public class ThreadCountingOperationTrackerFactory implements ILSMOperationTrackerFactory {
-
-    private static final long serialVersionUID = 1L;
-    
-    public static ThreadCountingOperationTrackerFactory INSTANCE = new ThreadCountingOperationTrackerFactory(); 
-    
-    @Override
-    public ILSMOperationTracker createOperationTracker(ILSMIndex index) {
-        return new ThreadCountingTracker(index);
-    }
-
-    // Enforce singleton.
-    private ThreadCountingOperationTrackerFactory() {
-    }
-}
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/ThreadCountingOperationTrackerProvider.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/ThreadCountingOperationTrackerProvider.java
new file mode 100644
index 0000000..5c6c43e
--- /dev/null
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/ThreadCountingOperationTrackerProvider.java
@@ -0,0 +1,35 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.hyracks.storage.am.lsm.common.impls;
+
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTracker;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerProvider;
+
+public class ThreadCountingOperationTrackerProvider implements ILSMOperationTrackerProvider {
+
+    private static final long serialVersionUID = 1L;
+
+    public static ThreadCountingOperationTrackerProvider INSTANCE = new ThreadCountingOperationTrackerProvider();
+
+    @Override
+    public ILSMOperationTracker getOperationTracker(IHyracksTaskContext ctx) {
+        return new ThreadCountingTracker();
+    }
+
+    // Enforce singleton.
+    private ThreadCountingOperationTrackerProvider() {
+    }
+}
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/ThreadCountingTracker.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/ThreadCountingTracker.java
index 5dfa94e..19ee4b8 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/ThreadCountingTracker.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/ThreadCountingTracker.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.common.impls;
 
 import java.util.concurrent.atomic.AtomicInteger;
@@ -12,15 +26,13 @@
 
 public class ThreadCountingTracker implements ILSMOperationTracker {
     private final AtomicInteger threadRefCount;
-    private final ILSMIndex index;
 
-    public ThreadCountingTracker(ILSMIndex index) {
-        this.index = index;
+    public ThreadCountingTracker() {
         this.threadRefCount = new AtomicInteger();
     }
 
     @Override
-    public void beforeOperation(LSMOperationType opType, ISearchOperationCallback searchCallback,
+    public void beforeOperation(ILSMIndex index, LSMOperationType opType, ISearchOperationCallback searchCallback,
             IModificationOperationCallback modificationCallback) throws HyracksDataException {
         if (opType == LSMOperationType.MODIFICATION) {
             threadRefCount.incrementAndGet();
@@ -28,14 +40,14 @@
     }
 
     @Override
-    public void afterOperation(LSMOperationType opType, ISearchOperationCallback searchCallback,
+    public void afterOperation(ILSMIndex index, LSMOperationType opType, ISearchOperationCallback searchCallback,
             IModificationOperationCallback modificationCallback) throws HyracksDataException {
         // The operation is considered inactive, immediately after leaving the index.
-        completeOperation(opType, searchCallback, modificationCallback);
+        completeOperation(index, opType, searchCallback, modificationCallback);
     }
 
     @Override
-    public void completeOperation(LSMOperationType opType, ISearchOperationCallback searchCallback,
+    public void completeOperation(ILSMIndex index, LSMOperationType opType, ISearchOperationCallback searchCallback,
             IModificationOperationCallback modificationCallback) throws HyracksDataException {
         // Flush will only be handled by last exiting thread.
         if (opType == LSMOperationType.MODIFICATION) {
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/TreeIndexFactory.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/TreeIndexFactory.java
index f570058..11fc003 100644
--- a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/TreeIndexFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/TreeIndexFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/VirtualBufferCache.java b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/VirtualBufferCache.java
new file mode 100644
index 0000000..18c87a1
--- /dev/null
+++ b/hyracks/hyracks-storage-am-lsm-common/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/common/impls/VirtualBufferCache.java
@@ -0,0 +1,344 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.hyracks.storage.am.lsm.common.impls;
+
+import java.nio.ByteBuffer;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.concurrent.locks.ReadWriteLock;
+import java.util.concurrent.locks.ReentrantLock;
+import java.util.concurrent.locks.ReentrantReadWriteLock;
+
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.api.io.FileReference;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
+import edu.uci.ics.hyracks.storage.common.buffercache.ICacheMemoryAllocator;
+import edu.uci.ics.hyracks.storage.common.buffercache.ICachedPage;
+import edu.uci.ics.hyracks.storage.common.file.BufferedFileHandle;
+import edu.uci.ics.hyracks.storage.common.file.IFileMapManager;
+import edu.uci.ics.hyracks.storage.common.file.TransientFileMapManager;
+
+public class VirtualBufferCache implements IVirtualBufferCache {
+    private static final int OVERFLOW_PADDING = 8;
+
+    private final ICacheMemoryAllocator allocator;
+    private final IFileMapManager fileMapManager;
+    private final int pageSize;
+    private final int numPages;
+
+    private final CacheBucket[] buckets;
+    private final ArrayList<VirtualPage> pages;
+
+    private int nextFree;
+
+    private boolean open;
+
+    public VirtualBufferCache(ICacheMemoryAllocator allocator, int pageSize, int numPages) {
+        this.allocator = allocator;
+        this.fileMapManager = new TransientFileMapManager();
+        this.pageSize = pageSize;
+        this.numPages = numPages;
+
+        buckets = new CacheBucket[numPages];
+        pages = new ArrayList<VirtualPage>();
+        nextFree = 0;
+        open = false;
+    }
+
+    @Override
+    public void createFile(FileReference fileRef) throws HyracksDataException {
+        synchronized (fileMapManager) {
+            if (fileMapManager.isMapped(fileRef)) {
+                throw new HyracksDataException("File " + fileRef + " is already mapped");
+            }
+            fileMapManager.registerFile(fileRef);
+        }
+    }
+
+    @Override
+    public void openFile(int fileId) throws HyracksDataException {
+    }
+
+    @Override
+    public void closeFile(int fileId) throws HyracksDataException {
+    }
+
+    @Override
+    public void deleteFile(int fileId, boolean flushDirtyPages) throws HyracksDataException {
+        synchronized (fileMapManager) {
+            if (!fileMapManager.isMapped(fileId)) {
+                throw new HyracksDataException("File with id " + fileId + " is not mapped");
+            }
+            fileMapManager.unregisterFile(fileId);
+        }
+
+        for (int i = 0; i < buckets.length; i++) {
+            CacheBucket bucket = buckets[i];
+            bucket.bucketLock.lock();
+            try {
+                VirtualPage prev = null;
+                VirtualPage curr = bucket.cachedPage;
+                while (curr != null) {
+                    if (BufferedFileHandle.getFileId(curr.dpid) == fileId) {
+                        if (prev == null) {
+                            bucket.cachedPage = curr.next;
+                            curr.reset();
+                            curr = bucket.cachedPage;
+                        } else {
+                            prev.next = curr.next;
+                            curr.reset();
+                            curr = prev.next;
+                        }
+                    } else {
+                        prev = curr;
+                        curr = curr.next;
+                    }
+                }
+            } finally {
+                bucket.bucketLock.unlock();
+            }
+        }
+        defragPageList();
+    }
+
+    private void defragPageList() {
+        synchronized (pages) {
+            int start = 0;
+            int end = nextFree - 1;
+            while (start < end) {
+                VirtualPage lastUsed = pages.get(end);
+                while (end > 0 && lastUsed.dpid == -1) {
+                    --end;
+                    lastUsed = pages.get(end);
+                }
+
+                if (end == 0) {
+                    nextFree = lastUsed.dpid == -1 ? 0 : 1;
+                    break;
+                }
+
+                VirtualPage firstUnused = pages.get(start);
+                while (start < end && firstUnused.dpid != -1) {
+                    ++start;
+                    firstUnused = pages.get(start);
+                }
+
+                if (start >= end) {
+                    break;
+                }
+
+                Collections.swap(pages, start, end);
+                nextFree = end;
+                --end;
+                ++start;
+            }
+        }
+    }
+
+    @Override
+    public ICachedPage tryPin(long dpid) throws HyracksDataException {
+        return pin(dpid, false);
+    }
+
+    @Override
+    public ICachedPage pin(long dpid, boolean newPage) throws HyracksDataException {
+        VirtualPage page = null;
+        int hash = hash(dpid);
+        CacheBucket bucket = buckets[hash];
+
+        bucket.bucketLock.lock();
+        try {
+            page = bucket.cachedPage;
+            while (page != null) {
+                if (page.dpid == dpid) {
+                    return page;
+                }
+                page = page.next;
+            }
+
+            if (!newPage) {
+                throw new HyracksDataException("Page " + BufferedFileHandle.getPageId(dpid)
+                        + " does not exist in file "
+                        + fileMapManager.lookupFileName(BufferedFileHandle.getFileId(dpid)));
+            }
+
+            page = getOrAllocPage(dpid);
+            page.next = bucket.cachedPage;
+            bucket.cachedPage = page;
+        } finally {
+            bucket.bucketLock.unlock();
+        }
+
+        return page;
+    }
+
+    private int hash(long dpid) {
+        return (int) (dpid % buckets.length);
+    }
+
+    private VirtualPage getOrAllocPage(long dpid) {
+        VirtualPage page = null;
+        synchronized (pages) {
+            if (nextFree >= pages.size()) {
+                page = new VirtualPage(allocator.allocate(pageSize, 1)[0]);
+                pages.add(page);
+            } else {
+                page = pages.get(nextFree);
+            }
+            ++nextFree;
+            page.dpid = dpid;
+        }
+        return page;
+    }
+
+    @Override
+    public void unpin(ICachedPage page) throws HyracksDataException {
+    }
+
+    @Override
+    public void flushDirtyPage(ICachedPage page) throws HyracksDataException {
+    }
+
+    @Override
+    public void force(int fileId, boolean metadata) throws HyracksDataException {
+    }
+
+    @Override
+    public int getPageSize() {
+        return pageSize;
+    }
+
+    @Override
+    public int getNumPages() {
+        return numPages;
+    }
+
+    @Override
+    public void open() throws HyracksDataException {
+        if (open) {
+            throw new HyracksDataException("Failed to open virtual buffercache since it is already open.");
+        }
+        pages.trimToSize();
+        pages.ensureCapacity(numPages + OVERFLOW_PADDING);
+        ByteBuffer[] buffers = allocator.allocate(pageSize, numPages);
+        for (int i = 0; i < numPages; i++) {
+            pages.add(new VirtualPage(buffers[i]));
+            buckets[i] = new CacheBucket();
+        }
+        nextFree = 0;
+        open = true;
+    }
+
+    @Override
+    public void reset() {
+        for (int i = 0; i < numPages; i++) {
+            pages.get(i).reset();
+            buckets[i].cachedPage = null;
+        }
+        int excess = pages.size() - numPages;
+        if (excess > 0) {
+            for (int i = numPages + excess - 1; i >= numPages; i--) {
+                pages.remove(i);
+            }
+        }
+        nextFree = 0;
+    }
+
+    @Override
+    public void close() throws HyracksDataException {
+        if (!open) {
+            throw new HyracksDataException("Failed to close virtual buffercache since it is already closed.");
+        }
+
+        pages.clear();
+        for (int i = 0; i < numPages; i++) {
+            buckets[i].cachedPage = null;
+        }
+        open = false;
+    }
+
+    public String dumpState() {
+        StringBuilder sb = new StringBuilder();
+        sb.append(String.format("Page size = %d\n", pageSize));
+        sb.append(String.format("Capacity = %d\n", numPages));
+        sb.append(String.format("Allocated pages = %d\n", pages.size()));
+        sb.append(String.format("Next free page = %d\n", nextFree));
+        return sb.toString();
+    }
+
+    @Override
+    public IFileMapManager getFileMapProvider() {
+        return fileMapManager;
+    }
+
+    @Override
+    public boolean isFull() {
+        return nextFree >= numPages;
+    }
+
+    private static class CacheBucket {
+        private final ReentrantLock bucketLock;
+        private VirtualPage cachedPage;
+
+        public CacheBucket() {
+            this.bucketLock = new ReentrantLock();
+        }
+    }
+
+    private class VirtualPage implements ICachedPage {
+        final ByteBuffer buffer;
+        final ReadWriteLock latch;
+        volatile long dpid;
+        VirtualPage next;
+
+        public VirtualPage(ByteBuffer buffer) {
+            this.buffer = buffer;
+            latch = new ReentrantReadWriteLock(true);
+            dpid = -1;
+            next = null;
+        }
+
+        public void reset() {
+            dpid = -1;
+            next = null;
+        }
+
+        @Override
+        public ByteBuffer getBuffer() {
+            return buffer;
+        }
+
+        @Override
+        public void acquireReadLatch() {
+            latch.readLock().lock();
+        }
+
+        @Override
+        public void releaseReadLatch() {
+            latch.readLock().unlock();
+        }
+
+        @Override
+        public void acquireWriteLatch() {
+            latch.writeLock().lock();
+        }
+
+        @Override
+        public void releaseWriteLatch() {
+            latch.writeLock().unlock();
+        }
+
+    }
+}
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/pom.xml b/hyracks/hyracks-storage-am-lsm-invertedindex/pom.xml
index 5a056a2..6fd62c1 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/pom.xml
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>hyracks-storage-am-lsm-invertedindex</artifactId>
@@ -5,7 +19,7 @@
 	<parent>
 		<artifactId>hyracks</artifactId>
 		<groupId>edu.uci.ics.hyracks</groupId>
-		<version>0.2.6-SNAPSHOT</version>
+		<version>0.2.7-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
@@ -26,14 +40,14 @@
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-storage-am-btree</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-storage-am-lsm-common</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 	    </dependency>
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedIndex.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedIndex.java
index 2556a25..89f4c0f 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedIndex.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedIndex.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedIndexAccessor.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedIndexAccessor.java
index 3fe5b57..a8ccdfb 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedIndexAccessor.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedIndexAccessor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedIndexFileNameMapper.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedIndexFileNameMapper.java
index d7ec129..833beeb 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedIndexFileNameMapper.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedIndexFileNameMapper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedIndexOperatorDescriptor.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedIndexOperatorDescriptor.java
index 60d1b03..d090bef 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedIndexOperatorDescriptor.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedIndexOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedIndexSearchModifier.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedIndexSearchModifier.java
index 0d0d936..42e4dbb 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedIndexSearchModifier.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedIndexSearchModifier.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedIndexSearchModifierFactory.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedIndexSearchModifierFactory.java
index 180f491..c32b9d8 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedIndexSearchModifierFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedIndexSearchModifierFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedIndexSearcher.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedIndexSearcher.java
index 0ea9383..ceebc78 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedIndexSearcher.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedIndexSearcher.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedListBuilder.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedListBuilder.java
index dcb5fdd..37477fe 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedListBuilder.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedListBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedListBuilderFactory.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedListBuilderFactory.java
index 9cde18b..776c476 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedListBuilderFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedListBuilderFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedListCursor.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedListCursor.java
index de703ac..b23c661 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedListCursor.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IInvertedListCursor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IObjectFactory.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IObjectFactory.java
index 9068a2b..8b65473 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IObjectFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IObjectFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IPartitionedInvertedIndex.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IPartitionedInvertedIndex.java
index 89fd69d..91689df 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IPartitionedInvertedIndex.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/api/IPartitionedInvertedIndex.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/AbstractLSMInvertedIndexOperatorDescriptor.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/AbstractLSMInvertedIndexOperatorDescriptor.java
index e0af36e..675fb03 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/AbstractLSMInvertedIndexOperatorDescriptor.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/AbstractLSMInvertedIndexOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/BinaryTokenizerOperatorDescriptor.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/BinaryTokenizerOperatorDescriptor.java
index 84152d5..6ccfed3 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/BinaryTokenizerOperatorDescriptor.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/BinaryTokenizerOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/BinaryTokenizerOperatorNodePushable.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/BinaryTokenizerOperatorNodePushable.java
index 5846f1b..ad2022d 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/BinaryTokenizerOperatorNodePushable.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/BinaryTokenizerOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/LSMInvertedIndexBulkLoadOperatorDescriptor.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/LSMInvertedIndexBulkLoadOperatorDescriptor.java
index da3cad5..1c4235c 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/LSMInvertedIndexBulkLoadOperatorDescriptor.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/LSMInvertedIndexBulkLoadOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -38,13 +38,15 @@
     private final int[] fieldPermutation;
     private final boolean verifyInput;
     private final long numElementsHint;
+    private final boolean checkIfEmptyIndex;
 
     public LSMInvertedIndexBulkLoadOperatorDescriptor(IOperatorDescriptorRegistry spec, int[] fieldPermutation,
-            boolean verifyInput, long numElementsHint, IStorageManagerInterface storageManager,
-            IFileSplitProvider fileSplitProvider, IIndexLifecycleManagerProvider lifecycleManagerProvider,
-            ITypeTraits[] tokenTypeTraits, IBinaryComparatorFactory[] tokenComparatorFactories,
-            ITypeTraits[] invListsTypeTraits, IBinaryComparatorFactory[] invListComparatorFactories,
-            IBinaryTokenizerFactory tokenizerFactory, IIndexDataflowHelperFactory invertedIndexDataflowHelperFactory,
+            boolean verifyInput, long numElementsHint, boolean checkIfEmptyIndex,
+            IStorageManagerInterface storageManager, IFileSplitProvider fileSplitProvider,
+            IIndexLifecycleManagerProvider lifecycleManagerProvider, ITypeTraits[] tokenTypeTraits,
+            IBinaryComparatorFactory[] tokenComparatorFactories, ITypeTraits[] invListsTypeTraits,
+            IBinaryComparatorFactory[] invListComparatorFactories, IBinaryTokenizerFactory tokenizerFactory,
+            IIndexDataflowHelperFactory invertedIndexDataflowHelperFactory,
             IModificationOperationCallbackFactory modificationOpCallbackFactory) {
         super(spec, 1, 0, null, storageManager, fileSplitProvider, lifecycleManagerProvider, tokenTypeTraits,
                 tokenComparatorFactories, invListsTypeTraits, invListComparatorFactories, tokenizerFactory,
@@ -53,12 +55,13 @@
         this.fieldPermutation = fieldPermutation;
         this.verifyInput = verifyInput;
         this.numElementsHint = numElementsHint;
+        this.checkIfEmptyIndex = checkIfEmptyIndex;
     }
 
     @Override
     public IOperatorNodePushable createPushRuntime(IHyracksTaskContext ctx,
             IRecordDescriptorProvider recordDescProvider, int partition, int nPartitions) {
         return new IndexBulkLoadOperatorNodePushable(this, ctx, partition, fieldPermutation, 1.0f, verifyInput,
-                numElementsHint, recordDescProvider);
+                numElementsHint, checkIfEmptyIndex, recordDescProvider);
     }
 }
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/LSMInvertedIndexCreateOperatorDescriptor.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/LSMInvertedIndexCreateOperatorDescriptor.java
index 641878f..a67ae51 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/LSMInvertedIndexCreateOperatorDescriptor.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/LSMInvertedIndexCreateOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/LSMInvertedIndexDataflowHelper.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/LSMInvertedIndexDataflowHelper.java
index c97e10d..1afd9d5 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/LSMInvertedIndexDataflowHelper.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/LSMInvertedIndexDataflowHelper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -16,63 +16,51 @@
 
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndex;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexMetaDataFrameFactory;
 import edu.uci.ics.hyracks.storage.am.common.api.IndexException;
 import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndexOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.common.frames.LIFOMetaDataFrameFactory;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.IInMemoryBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationScheduler;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicy;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerProvider;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.dataflow.AbstractLSMIndexDataflowHelper;
-import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.DualIndexInMemoryBufferCache;
-import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.DualIndexInMemoryFreePageManager;
 import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.api.IInvertedIndexOperatorDescriptor;
 import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.impls.LSMInvertedIndex;
 import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.util.InvertedIndexUtils;
-import edu.uci.ics.hyracks.storage.common.buffercache.HeapBufferAllocator;
 import edu.uci.ics.hyracks.storage.common.buffercache.IBufferCache;
 import edu.uci.ics.hyracks.storage.common.file.IFileMapProvider;
 
 public final class LSMInvertedIndexDataflowHelper extends AbstractLSMIndexDataflowHelper {
 
     public LSMInvertedIndexDataflowHelper(IIndexOperatorDescriptor opDesc, IHyracksTaskContext ctx, int partition,
-            ILSMMergePolicy mergePolicy, ILSMOperationTrackerFactory opTrackerFactory,
-            ILSMIOOperationScheduler ioScheduler, ILSMIOOperationCallbackProvider ioOpCallbackProvider) {
-        this(opDesc, ctx, partition, DEFAULT_MEM_PAGE_SIZE, DEFAULT_MEM_NUM_PAGES,
-                DEFAULT_BLOOM_FILTER_FALSE_POSITIVE_RATE, mergePolicy, opTrackerFactory, ioScheduler,
-                ioOpCallbackProvider);
+            IVirtualBufferCache virtualBufferCache, ILSMMergePolicy mergePolicy,
+            ILSMOperationTrackerProvider opTrackerFactory, ILSMIOOperationScheduler ioScheduler,
+            ILSMIOOperationCallbackProvider ioOpCallbackProvider) {
+        this(opDesc, ctx, partition, virtualBufferCache, DEFAULT_BLOOM_FILTER_FALSE_POSITIVE_RATE, mergePolicy,
+                opTrackerFactory, ioScheduler, ioOpCallbackProvider);
     }
 
     public LSMInvertedIndexDataflowHelper(IIndexOperatorDescriptor opDesc, IHyracksTaskContext ctx, int partition,
-            int memPageSize, int memNumPages, double bloomFilterFalsePositiveRate, ILSMMergePolicy mergePolicy,
-            ILSMOperationTrackerFactory opTrackerFactory, ILSMIOOperationScheduler ioScheduler,
+            IVirtualBufferCache virtualBufferCache, double bloomFilterFalsePositiveRate, ILSMMergePolicy mergePolicy,
+            ILSMOperationTrackerProvider opTrackerFactory, ILSMIOOperationScheduler ioScheduler,
             ILSMIOOperationCallbackProvider ioOpCallbackProvider) {
-        super(opDesc, ctx, partition, memPageSize, memNumPages, bloomFilterFalsePositiveRate, mergePolicy,
-                opTrackerFactory, ioScheduler, ioOpCallbackProvider);
+        super(opDesc, ctx, partition, virtualBufferCache, bloomFilterFalsePositiveRate, mergePolicy, opTrackerFactory,
+                ioScheduler, ioOpCallbackProvider);
     }
 
     @Override
     public IIndex createIndexInstance() throws HyracksDataException {
         IInvertedIndexOperatorDescriptor invIndexOpDesc = (IInvertedIndexOperatorDescriptor) opDesc;
         try {
-            ITreeIndexMetaDataFrameFactory metaDataFrameFactory = new LIFOMetaDataFrameFactory();
-            IInMemoryBufferCache memBufferCache = new DualIndexInMemoryBufferCache(new HeapBufferAllocator(),
-                    memPageSize, memNumPages);
-            IInMemoryFreePageManager memFreePageManager = new DualIndexInMemoryFreePageManager(memNumPages,
-                    metaDataFrameFactory);
             IBufferCache diskBufferCache = opDesc.getStorageManager().getBufferCache(ctx);
             IFileMapProvider diskFileMapProvider = opDesc.getStorageManager().getFileMapProvider(ctx);
-            LSMInvertedIndex invIndex = InvertedIndexUtils.createLSMInvertedIndex(memBufferCache, memFreePageManager,
-                    diskFileMapProvider, invIndexOpDesc.getInvListsTypeTraits(), invIndexOpDesc
-                            .getInvListsComparatorFactories(), invIndexOpDesc.getTokenTypeTraits(), invIndexOpDesc
-                            .getTokenComparatorFactories(), invIndexOpDesc.getTokenizerFactory(), diskBufferCache, ctx
-                            .getIOManager(), file.getFile().getPath(), bloomFilterFalsePositiveRate, mergePolicy,
-                    opTrackerFactory, ioScheduler, ioOpCallbackProvider,
-                    opDesc.getFileSplitProvider().getFileSplits()[partition].getIODeviceId());
+            LSMInvertedIndex invIndex = InvertedIndexUtils.createLSMInvertedIndex(virtualBufferCache,
+                    diskFileMapProvider, invIndexOpDesc.getInvListsTypeTraits(),
+                    invIndexOpDesc.getInvListsComparatorFactories(), invIndexOpDesc.getTokenTypeTraits(),
+                    invIndexOpDesc.getTokenComparatorFactories(), invIndexOpDesc.getTokenizerFactory(),
+                    diskBufferCache, file.getFile().getPath(), bloomFilterFalsePositiveRate, mergePolicy,
+                    opTrackerFactory.getOperationTracker(ctx), ioScheduler, ioOpCallbackProvider);
             return invIndex;
         } catch (IndexException e) {
             throw new HyracksDataException(e);
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/LSMInvertedIndexDataflowHelperFactory.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/LSMInvertedIndexDataflowHelperFactory.java
index 60a0b47..c9f81fc 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/LSMInvertedIndexDataflowHelperFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/LSMInvertedIndexDataflowHelperFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -21,27 +21,29 @@
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationSchedulerProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicyProvider;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerProvider;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCacheProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.dataflow.AbstractLSMIndexDataflowHelperFactory;
 
 public class LSMInvertedIndexDataflowHelperFactory extends AbstractLSMIndexDataflowHelperFactory {
 
     private static final long serialVersionUID = 1L;
 
-    public LSMInvertedIndexDataflowHelperFactory(ILSMMergePolicyProvider mergePolicyProvider,
-            ILSMOperationTrackerFactory opTrackerProvider, ILSMIOOperationSchedulerProvider ioSchedulerProvider,
-            ILSMIOOperationCallbackProvider ioOpCallbackProvider, int memPageSize, int memNumPages,
+    public LSMInvertedIndexDataflowHelperFactory(IVirtualBufferCacheProvider virtualBufferCacheProvider,
+            ILSMMergePolicyProvider mergePolicyProvider, ILSMOperationTrackerProvider opTrackerProvider,
+            ILSMIOOperationSchedulerProvider ioSchedulerProvider, ILSMIOOperationCallbackProvider ioOpCallbackProvider,
             double bloomFilterFalsePositiveRate) {
-        super(mergePolicyProvider, opTrackerProvider, ioSchedulerProvider, ioOpCallbackProvider, memPageSize,
-                memNumPages, bloomFilterFalsePositiveRate);
+        super(virtualBufferCacheProvider, mergePolicyProvider, opTrackerProvider, ioSchedulerProvider,
+                ioOpCallbackProvider, bloomFilterFalsePositiveRate);
     }
 
     @Override
     public IndexDataflowHelper createIndexDataflowHelper(IIndexOperatorDescriptor opDesc, IHyracksTaskContext ctx,
             int partition) {
-        return new LSMInvertedIndexDataflowHelper(opDesc, ctx, partition, memPageSize, memNumPages,
-                bloomFilterFalsePositiveRate, mergePolicyProvider.getMergePolicy(ctx), opTrackerFactory,
-                ioSchedulerProvider.getIOScheduler(ctx), ioOpCallbackProvider);
+        return new LSMInvertedIndexDataflowHelper(opDesc, ctx, partition,
+                virtualBufferCacheProvider.getVirtualBufferCache(ctx), bloomFilterFalsePositiveRate,
+                mergePolicyProvider.getMergePolicy(ctx), opTrackerFactory, ioSchedulerProvider.getIOScheduler(ctx),
+                ioOpCallbackProvider);
     }
 
 }
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/LSMInvertedIndexInsertUpdateDeleteOperator.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/LSMInvertedIndexInsertUpdateDeleteOperator.java
index 3122aa0..31797a7 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/LSMInvertedIndexInsertUpdateDeleteOperator.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/LSMInvertedIndexInsertUpdateDeleteOperator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -38,8 +38,8 @@
 
     private static final long serialVersionUID = 1L;
 
-    private final int[] fieldPermutation;
-    private final IndexOperation op;
+    protected final int[] fieldPermutation;
+    protected final IndexOperation op;
 
     public LSMInvertedIndexInsertUpdateDeleteOperator(IOperatorDescriptorRegistry spec, RecordDescriptor recDesc,
             IStorageManagerInterface storageManager, IFileSplitProvider fileSplitProvider,
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/LSMInvertedIndexSearchOperatorDescriptor.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/LSMInvertedIndexSearchOperatorDescriptor.java
index 4f97060..bd3f879 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/LSMInvertedIndexSearchOperatorDescriptor.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/LSMInvertedIndexSearchOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/LSMInvertedIndexSearchOperatorNodePushable.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/LSMInvertedIndexSearchOperatorNodePushable.java
index d825c02..ba3a7f1 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/LSMInvertedIndexSearchOperatorNodePushable.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/LSMInvertedIndexSearchOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/PartitionedLSMInvertedIndexDataflowHelper.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/PartitionedLSMInvertedIndexDataflowHelper.java
index 6c5b25f..0dbd06b 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/PartitionedLSMInvertedIndexDataflowHelper.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/PartitionedLSMInvertedIndexDataflowHelper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -16,63 +16,51 @@
 
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndex;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexMetaDataFrameFactory;
 import edu.uci.ics.hyracks.storage.am.common.api.IndexException;
 import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndexOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.common.frames.LIFOMetaDataFrameFactory;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.IInMemoryBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationScheduler;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicy;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerProvider;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.dataflow.AbstractLSMIndexDataflowHelper;
-import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.DualIndexInMemoryBufferCache;
-import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.DualIndexInMemoryFreePageManager;
 import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.api.IInvertedIndexOperatorDescriptor;
 import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.impls.PartitionedLSMInvertedIndex;
 import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.util.InvertedIndexUtils;
-import edu.uci.ics.hyracks.storage.common.buffercache.HeapBufferAllocator;
 import edu.uci.ics.hyracks.storage.common.buffercache.IBufferCache;
 import edu.uci.ics.hyracks.storage.common.file.IFileMapProvider;
 
 public final class PartitionedLSMInvertedIndexDataflowHelper extends AbstractLSMIndexDataflowHelper {
 
     public PartitionedLSMInvertedIndexDataflowHelper(IIndexOperatorDescriptor opDesc, IHyracksTaskContext ctx,
-            int partition, ILSMMergePolicy mergePolicy, ILSMOperationTrackerFactory opTrackerFactory,
-            ILSMIOOperationScheduler ioScheduler, ILSMIOOperationCallbackProvider ioOpCallbackProvider) {
-        this(opDesc, ctx, partition, DEFAULT_MEM_PAGE_SIZE, DEFAULT_MEM_NUM_PAGES,
-                DEFAULT_BLOOM_FILTER_FALSE_POSITIVE_RATE, mergePolicy, opTrackerFactory, ioScheduler,
-                ioOpCallbackProvider);
+            int partition, IVirtualBufferCache virtualBufferCache, ILSMMergePolicy mergePolicy,
+            ILSMOperationTrackerProvider opTrackerFactory, ILSMIOOperationScheduler ioScheduler,
+            ILSMIOOperationCallbackProvider ioOpCallbackProvider) {
+        this(opDesc, ctx, partition, virtualBufferCache, DEFAULT_BLOOM_FILTER_FALSE_POSITIVE_RATE, mergePolicy,
+                opTrackerFactory, ioScheduler, ioOpCallbackProvider);
     }
 
     public PartitionedLSMInvertedIndexDataflowHelper(IIndexOperatorDescriptor opDesc, IHyracksTaskContext ctx,
-            int partition, int memPageSize, int memNumPages, double bloomFilterFalsePositiveRate,
-            ILSMMergePolicy mergePolicy, ILSMOperationTrackerFactory opTrackerFactory,
+            int partition, IVirtualBufferCache virtualBufferCache, double bloomFilterFalsePositiveRate,
+            ILSMMergePolicy mergePolicy, ILSMOperationTrackerProvider opTrackerFactory,
             ILSMIOOperationScheduler ioScheduler, ILSMIOOperationCallbackProvider ioOpCallbackProvider) {
-        super(opDesc, ctx, partition, memPageSize, memNumPages, bloomFilterFalsePositiveRate, mergePolicy,
-                opTrackerFactory, ioScheduler, ioOpCallbackProvider);
+        super(opDesc, ctx, partition, virtualBufferCache, bloomFilterFalsePositiveRate, mergePolicy, opTrackerFactory,
+                ioScheduler, ioOpCallbackProvider);
     }
 
     @Override
     public IIndex createIndexInstance() throws HyracksDataException {
         IInvertedIndexOperatorDescriptor invIndexOpDesc = (IInvertedIndexOperatorDescriptor) opDesc;
         try {
-            ITreeIndexMetaDataFrameFactory metaDataFrameFactory = new LIFOMetaDataFrameFactory();
-            IInMemoryBufferCache memBufferCache = new DualIndexInMemoryBufferCache(new HeapBufferAllocator(),
-                    memPageSize, memNumPages);
-            IInMemoryFreePageManager memFreePageManager = new DualIndexInMemoryFreePageManager(memNumPages,
-                    metaDataFrameFactory);
             IBufferCache diskBufferCache = opDesc.getStorageManager().getBufferCache(ctx);
             IFileMapProvider diskFileMapProvider = opDesc.getStorageManager().getFileMapProvider(ctx);
-            PartitionedLSMInvertedIndex invIndex = InvertedIndexUtils.createPartitionedLSMInvertedIndex(memBufferCache,
-                    memFreePageManager, diskFileMapProvider, invIndexOpDesc.getInvListsTypeTraits(), invIndexOpDesc
-                            .getInvListsComparatorFactories(), invIndexOpDesc.getTokenTypeTraits(), invIndexOpDesc
-                            .getTokenComparatorFactories(), invIndexOpDesc.getTokenizerFactory(), diskBufferCache, ctx
-                            .getIOManager(), file.getFile().getPath(), bloomFilterFalsePositiveRate, mergePolicy,
-                    opTrackerFactory, ioScheduler, ioOpCallbackProvider,
-                    opDesc.getFileSplitProvider().getFileSplits()[partition].getIODeviceId());
+            PartitionedLSMInvertedIndex invIndex = InvertedIndexUtils.createPartitionedLSMInvertedIndex(
+                    virtualBufferCache, diskFileMapProvider, invIndexOpDesc.getInvListsTypeTraits(),
+                    invIndexOpDesc.getInvListsComparatorFactories(), invIndexOpDesc.getTokenTypeTraits(),
+                    invIndexOpDesc.getTokenComparatorFactories(), invIndexOpDesc.getTokenizerFactory(),
+                    diskBufferCache, file.getFile().getPath(), bloomFilterFalsePositiveRate, mergePolicy,
+                    opTrackerFactory.getOperationTracker(ctx), ioScheduler, ioOpCallbackProvider);
             return invIndex;
         } catch (IndexException e) {
             throw new HyracksDataException(e);
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/PartitionedLSMInvertedIndexDataflowHelperFactory.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/PartitionedLSMInvertedIndexDataflowHelperFactory.java
index 801462b..67cab6d 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/PartitionedLSMInvertedIndexDataflowHelperFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/dataflow/PartitionedLSMInvertedIndexDataflowHelperFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -21,26 +21,28 @@
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationSchedulerProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicyProvider;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerProvider;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCacheProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.dataflow.AbstractLSMIndexDataflowHelperFactory;
 
 public class PartitionedLSMInvertedIndexDataflowHelperFactory extends AbstractLSMIndexDataflowHelperFactory {
 
     private static final long serialVersionUID = 1L;
 
-    public PartitionedLSMInvertedIndexDataflowHelperFactory(ILSMMergePolicyProvider mergePolicyProvider,
-            ILSMOperationTrackerFactory opTrackerProvider, ILSMIOOperationSchedulerProvider ioSchedulerProvider,
-            ILSMIOOperationCallbackProvider ioOpCallbackProvider, int memPageSize, int memNumPages,
+    public PartitionedLSMInvertedIndexDataflowHelperFactory(IVirtualBufferCacheProvider virtualBufferCacheProvider,
+            ILSMMergePolicyProvider mergePolicyProvider, ILSMOperationTrackerProvider opTrackerProvider,
+            ILSMIOOperationSchedulerProvider ioSchedulerProvider, ILSMIOOperationCallbackProvider ioOpCallbackProvider,
             double bloomFilterFalsePositiveRate) {
-        super(mergePolicyProvider, opTrackerProvider, ioSchedulerProvider, ioOpCallbackProvider, memNumPages,
-                memNumPages, bloomFilterFalsePositiveRate);
+        super(virtualBufferCacheProvider, mergePolicyProvider, opTrackerProvider, ioSchedulerProvider,
+                ioOpCallbackProvider, bloomFilterFalsePositiveRate);
     }
 
     @Override
     public IndexDataflowHelper createIndexDataflowHelper(IIndexOperatorDescriptor opDesc, IHyracksTaskContext ctx,
             int partition) {
-        return new PartitionedLSMInvertedIndexDataflowHelper(opDesc, ctx, partition, memPageSize, memNumPages,
-                bloomFilterFalsePositiveRate, mergePolicyProvider.getMergePolicy(ctx), opTrackerFactory,
-                ioSchedulerProvider.getIOScheduler(ctx), ioOpCallbackProvider);
+        return new PartitionedLSMInvertedIndexDataflowHelper(opDesc, ctx, partition,
+                virtualBufferCacheProvider.getVirtualBufferCache(ctx), bloomFilterFalsePositiveRate,
+                mergePolicyProvider.getMergePolicy(ctx), opTrackerFactory, ioSchedulerProvider.getIOScheduler(ctx),
+                ioOpCallbackProvider);
     }
 }
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/exceptions/InvertedIndexException.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/exceptions/InvertedIndexException.java
index cc7ff87..7fef3b8 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/exceptions/InvertedIndexException.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/exceptions/InvertedIndexException.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/exceptions/OccurrenceThresholdPanicException.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/exceptions/OccurrenceThresholdPanicException.java
index bedaa60..b86c657 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/exceptions/OccurrenceThresholdPanicException.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/exceptions/OccurrenceThresholdPanicException.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndex.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndex.java
index beb4dc9..3eae5a7 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndex.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndex.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -34,7 +34,6 @@
 import edu.uci.ics.hyracks.storage.am.btree.impls.RangePredicate;
 import edu.uci.ics.hyracks.storage.am.btree.util.BTreeUtils;
 import edu.uci.ics.hyracks.storage.am.common.api.ICursorInitialState;
-import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndexAccessor;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndexBulkLoader;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndexCursor;
@@ -42,13 +41,12 @@
 import edu.uci.ics.hyracks.storage.am.common.api.IModificationOperationCallback;
 import edu.uci.ics.hyracks.storage.am.common.api.ISearchOperationCallback;
 import edu.uci.ics.hyracks.storage.am.common.api.ISearchPredicate;
+import edu.uci.ics.hyracks.storage.am.common.api.IVirtualFreePageManager;
 import edu.uci.ics.hyracks.storage.am.common.api.IndexException;
-import edu.uci.ics.hyracks.storage.am.common.api.TreeIndexException;
 import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallback;
 import edu.uci.ics.hyracks.storage.am.common.ophelpers.IndexOperation;
 import edu.uci.ics.hyracks.storage.am.common.ophelpers.MultiComparator;
 import edu.uci.ics.hyracks.storage.am.common.tuples.PermutingTupleReference;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.IInMemoryBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMComponent;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMComponentFactory;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperation;
@@ -60,8 +58,9 @@
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndexFileManager;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndexOperationContext;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicy;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
-import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.InMemoryBufferCache;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTracker;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
+import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.VirtualFreePageManager;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.AbstractLSMIndex;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.BTreeFactory;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.BlockingIOOperationCallbackWrapper;
@@ -82,7 +81,7 @@
 
     // In-memory components.
     protected final LSMInvertedIndexMutableComponent mutableComponent;
-    protected final IInMemoryFreePageManager memFreePageManager;
+    protected final IVirtualFreePageManager virtualFreePageManager;
     protected final IBinaryTokenizerFactory tokenizerFactory;
 
     // On-disk components.
@@ -95,29 +94,29 @@
     protected final ITypeTraits[] tokenTypeTraits;
     protected final IBinaryComparatorFactory[] tokenCmpFactories;
 
-    public LSMInvertedIndex(IInMemoryBufferCache memBufferCache, IInMemoryFreePageManager memFreePageManager,
-            OnDiskInvertedIndexFactory diskInvIndexFactory, BTreeFactory deletedKeysBTreeFactory,
-            BloomFilterFactory bloomFilterFactory, double bloomFilterFalsePositiveRate,
-            ILSMIndexFileManager fileManager, IFileMapProvider diskFileMapProvider, ITypeTraits[] invListTypeTraits,
+    public LSMInvertedIndex(IVirtualBufferCache virtualBufferCache, OnDiskInvertedIndexFactory diskInvIndexFactory,
+            BTreeFactory deletedKeysBTreeFactory, BloomFilterFactory bloomFilterFactory,
+            double bloomFilterFalsePositiveRate, ILSMIndexFileManager fileManager,
+            IFileMapProvider diskFileMapProvider, ITypeTraits[] invListTypeTraits,
             IBinaryComparatorFactory[] invListCmpFactories, ITypeTraits[] tokenTypeTraits,
             IBinaryComparatorFactory[] tokenCmpFactories, IBinaryTokenizerFactory tokenizerFactory,
-            ILSMMergePolicy mergePolicy, ILSMOperationTrackerFactory opTrackerFactory,
-            ILSMIOOperationScheduler ioScheduler, ILSMIOOperationCallbackProvider ioOpCallbackProvider)
-            throws IndexException {
-        super(memFreePageManager, diskInvIndexFactory.getBufferCache(), fileManager, diskFileMapProvider,
-                bloomFilterFalsePositiveRate, mergePolicy, opTrackerFactory, ioScheduler, ioOpCallbackProvider);
-        this.memFreePageManager = memFreePageManager;
+            ILSMMergePolicy mergePolicy, ILSMOperationTracker opTracker, ILSMIOOperationScheduler ioScheduler,
+            ILSMIOOperationCallbackProvider ioOpCallbackProvider) throws IndexException {
+        super(virtualBufferCache, diskInvIndexFactory.getBufferCache(), fileManager, diskFileMapProvider,
+                bloomFilterFalsePositiveRate, mergePolicy, opTracker, ioScheduler, ioOpCallbackProvider);
+        this.virtualFreePageManager = new VirtualFreePageManager(virtualBufferCache.getNumPages());
         this.tokenizerFactory = tokenizerFactory;
         this.invListTypeTraits = invListTypeTraits;
         this.invListCmpFactories = invListCmpFactories;
         this.tokenTypeTraits = tokenTypeTraits;
         this.tokenCmpFactories = tokenCmpFactories;
         // Create in-memory component.
-        InMemoryInvertedIndex memInvIndex = createInMemoryInvertedIndex(memBufferCache);
-        BTree deleteKeysBTree = BTreeUtils.createBTree(memBufferCache, memFreePageManager,
-                ((InMemoryBufferCache) memBufferCache).getFileMapProvider(), invListTypeTraits, invListCmpFactories,
-                BTreeLeafFrameType.REGULAR_NSM, new FileReference(new File("membtree")));
-        mutableComponent = new LSMInvertedIndexMutableComponent(memInvIndex, deleteKeysBTree, memFreePageManager);
+        InMemoryInvertedIndex memInvIndex = createInMemoryInvertedIndex(virtualBufferCache);
+        BTree deleteKeysBTree = BTreeUtils.createBTree(virtualBufferCache, new VirtualFreePageManager(
+                virtualBufferCache.getNumPages()), ((IVirtualBufferCache) virtualBufferCache).getFileMapProvider(),
+                invListTypeTraits, invListCmpFactories, BTreeLeafFrameType.REGULAR_NSM, new FileReference(new File(
+                        fileManager.getBaseDir() + "_virtual_del")));
+        mutableComponent = new LSMInvertedIndexMutableComponent(memInvIndex, deleteKeysBTree, virtualBufferCache);
         componentFactory = new LSMInvertedIndexComponentFactory(diskInvIndexFactory, deletedKeysBTreeFactory,
                 bloomFilterFactory);
     }
@@ -136,11 +135,12 @@
     @Override
     public synchronized void activate() throws HyracksDataException {
         if (isActivated) {
-            return;
+            throw new HyracksDataException("Failed to activate the index since it is already activated.");
         }
+
         try {
             List<ILSMComponent> immutableComponents = componentsRef.get();
-            ((InMemoryBufferCache) mutableComponent.getInvIndex().getBufferCache()).open();
+            ((IVirtualBufferCache) mutableComponent.getInvIndex().getBufferCache()).open();
             mutableComponent.getInvIndex().create();
             mutableComponent.getInvIndex().activate();
             mutableComponent.getDeletedKeysBTree().create();
@@ -174,6 +174,7 @@
         List<ILSMComponent> immutableComponents = componentsRef.get();
         mutableComponent.getInvIndex().clear();
         mutableComponent.getDeletedKeysBTree().clear();
+        mutableComponent.reset();
         for (ILSMComponent c : immutableComponents) {
             LSMInvertedIndexImmutableComponent component = (LSMInvertedIndexImmutableComponent) c;
             component.getBloomFilter().deactivate();
@@ -189,11 +190,10 @@
     @Override
     public synchronized void deactivate(boolean flushOnExit) throws HyracksDataException {
         if (!isActivated) {
-            return;
+            throw new HyracksDataException("Failed to deactivate the index since it is already deactivated.");
         }
 
         isActivated = false;
-
         if (flushOnExit) {
             BlockingIOOperationCallbackWrapper blockingCallBack = new BlockingIOOperationCallbackWrapper(
                     ioOpCallbackProvider.getIOOperationCallback(this));
@@ -218,7 +218,7 @@
         mutableComponent.getDeletedKeysBTree().deactivate();
         mutableComponent.getInvIndex().destroy();
         mutableComponent.getDeletedKeysBTree().destroy();
-        ((InMemoryBufferCache) mutableComponent.getInvIndex().getBufferCache()).close();
+        ((IVirtualBufferCache) mutableComponent.getInvIndex().getBufferCache()).close();
     }
 
     @Override
@@ -432,7 +432,7 @@
         memBTreeAccessor.search(scanCursor, nullPred);
 
         // Bulk load the disk inverted index from the in-memory inverted index.
-        IIndexBulkLoader invIndexBulkLoader = diskInvertedIndex.createBulkLoader(1.0f, false, 0L);
+        IIndexBulkLoader invIndexBulkLoader = diskInvertedIndex.createBulkLoader(1.0f, false, 0L, false);
         try {
             while (scanCursor.hasNext()) {
                 scanCursor.next();
@@ -472,7 +472,7 @@
             deletedKeysBTreeAccessor.search(deletedKeysScanCursor, nullPred);
 
             // Bulk load the deleted-keys BTree.
-            IIndexBulkLoader deletedKeysBTreeBulkLoader = diskDeletedKeysBTree.createBulkLoader(1.0f, false, 0L);
+            IIndexBulkLoader deletedKeysBTreeBulkLoader = diskDeletedKeysBTree.createBulkLoader(1.0f, false, 0L, false);
             IIndexBulkLoader builder = component.getBloomFilter().createBuilder(numBTreeTuples,
                     bloomFilterSpec.getNumHashes(), bloomFilterSpec.getNumBucketsPerElements());
 
@@ -534,7 +534,7 @@
 
         IInvertedIndex mergedDiskInvertedIndex = component.getInvIndex();
         IIndexCursor cursor = mergeOp.getCursor();
-        IIndexBulkLoader invIndexBulkLoader = mergedDiskInvertedIndex.createBulkLoader(1.0f, true, 0L);
+        IIndexBulkLoader invIndexBulkLoader = mergedDiskInvertedIndex.createBulkLoader(1.0f, true, 0L, false);
         try {
             while (cursor.hasNext()) {
                 cursor.next();
@@ -559,70 +559,84 @@
     }
 
     @Override
-    public IIndexBulkLoader createBulkLoader(float fillFactor, boolean verifyInput, long numElementsHint)
-            throws IndexException {
-        return new LSMInvertedIndexBulkLoader(fillFactor, verifyInput, numElementsHint);
+    public IIndexBulkLoader createBulkLoader(float fillFactor, boolean verifyInput, long numElementsHint,
+            boolean checkIfEmptyIndex) throws IndexException {
+        try {
+            return new LSMInvertedIndexBulkLoader(fillFactor, verifyInput, numElementsHint, checkIfEmptyIndex);
+        } catch (HyracksDataException e) {
+            throw new IndexException(e);
+        }
+    }
+
+    public boolean isEmptyIndex() throws HyracksDataException {
+        return componentsRef.get().isEmpty() && !mutableComponent.isModified();
     }
 
     public class LSMInvertedIndexBulkLoader implements IIndexBulkLoader {
         private final ILSMComponent component;
         private final IIndexBulkLoader invIndexBulkLoader;
-        private boolean exceptionCaught = false;
+        private boolean cleanedUpArtifacts = false;
+        private boolean isEmptyComponent = true;
 
-        public LSMInvertedIndexBulkLoader(float fillFactor, boolean verifyInput, long numElementsHint)
-                throws IndexException {
+        public LSMInvertedIndexBulkLoader(float fillFactor, boolean verifyInput, long numElementsHint,
+                boolean checkIfEmptyIndex) throws IndexException, HyracksDataException {
+            if (checkIfEmptyIndex && !isEmptyIndex()) {
+                throw new IndexException("Cannot load an index that is not empty");
+            }
             // Note that by using a flush target file name, we state that the
             // new bulk loaded tree is "newer" than any other merged tree.
             try {
                 component = createBulkLoadTarget();
-            } catch (HyracksDataException e) {
-                throw new TreeIndexException(e);
-            } catch (IndexException e) {
-                throw new TreeIndexException(e);
+            } catch (HyracksDataException | IndexException e) {
+                throw new IndexException(e);
             }
             invIndexBulkLoader = ((LSMInvertedIndexImmutableComponent) component).getInvIndex().createBulkLoader(
-                    fillFactor, verifyInput, numElementsHint);
+                    fillFactor, verifyInput, numElementsHint, false);
         }
 
         @Override
         public void add(ITupleReference tuple) throws IndexException, HyracksDataException {
             try {
                 invIndexBulkLoader.add(tuple);
-            } catch (IndexException e) {
-                handleException();
+            } catch (IndexException | HyracksDataException | RuntimeException e) {
+                cleanupArtifacts();
                 throw e;
-            } catch (HyracksDataException e) {
-                handleException();
-                throw e;
-            } catch (RuntimeException e) {
-                handleException();
-                throw e;
+            }
+            if (isEmptyComponent) {
+                isEmptyComponent = false;
             }
         }
 
-        protected void handleException() throws HyracksDataException {
-            exceptionCaught = true;
-            ((LSMInvertedIndexImmutableComponent) component).getInvIndex().deactivate();
-            ((LSMInvertedIndexImmutableComponent) component).getInvIndex().destroy();
-            ((LSMInvertedIndexImmutableComponent) component).getDeletedKeysBTree().deactivate();
-            ((LSMInvertedIndexImmutableComponent) component).getDeletedKeysBTree().destroy();
-            ((LSMInvertedIndexImmutableComponent) component).getBloomFilter().deactivate();
-            ((LSMInvertedIndexImmutableComponent) component).getBloomFilter().destroy();
+        protected void cleanupArtifacts() throws HyracksDataException {
+            if (!cleanedUpArtifacts) {
+                cleanedUpArtifacts = true;
+                ((LSMInvertedIndexImmutableComponent) component).getInvIndex().deactivate();
+                ((LSMInvertedIndexImmutableComponent) component).getInvIndex().destroy();
+                ((LSMInvertedIndexImmutableComponent) component).getDeletedKeysBTree().deactivate();
+                ((LSMInvertedIndexImmutableComponent) component).getDeletedKeysBTree().destroy();
+                ((LSMInvertedIndexImmutableComponent) component).getBloomFilter().deactivate();
+                ((LSMInvertedIndexImmutableComponent) component).getBloomFilter().destroy();
+            }
         }
 
         @Override
         public void end() throws IndexException, HyracksDataException {
-            if (!exceptionCaught) {
+            if (!cleanedUpArtifacts) {
                 invIndexBulkLoader.end();
+                if (isEmptyComponent) {
+                    cleanupArtifacts();
+                } else {
+                    lsmHarness.addBulkLoadedComponent(component);
+                }
             }
-            lsmHarness.addBulkLoadedComponent(component);
         }
     }
 
-    protected InMemoryInvertedIndex createInMemoryInvertedIndex(IInMemoryBufferCache memBufferCache)
+    protected InMemoryInvertedIndex createInMemoryInvertedIndex(IVirtualBufferCache virtualBufferCache)
             throws IndexException {
-        return InvertedIndexUtils.createInMemoryBTreeInvertedindex(memBufferCache, memFreePageManager,
-                invListTypeTraits, invListCmpFactories, tokenTypeTraits, tokenCmpFactories, tokenizerFactory);
+        return InvertedIndexUtils.createInMemoryBTreeInvertedindex(virtualBufferCache, virtualFreePageManager,
+                invListTypeTraits, invListCmpFactories, tokenTypeTraits, tokenCmpFactories, tokenizerFactory,
+                new FileReference(new File(fileManager.getBaseDir() + "_virtual_vocab")));
     }
 
     protected LSMInvertedIndexImmutableComponent createDiskInvIndexComponent(ILSMComponentFactory factory,
@@ -679,8 +693,8 @@
 
     @Override
     public long getMemoryAllocationSize() {
-        InMemoryBufferCache memBufferCache = (InMemoryBufferCache) mutableComponent.getInvIndex().getBufferCache();
-        return memBufferCache.getNumPages() * memBufferCache.getPageSize();
+        IBufferCache virtualBufferCache = mutableComponent.getInvIndex().getBufferCache();
+        return virtualBufferCache.getNumPages() * virtualBufferCache.getPageSize();
     }
 
     @Override
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexAccessor.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexAccessor.java
index 7f7d3cd..16f1fa1 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexAccessor.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexAccessor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexComponentFactory.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexComponentFactory.java
index 1f4db63..1455647 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexComponentFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexComponentFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexFileManager.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexFileManager.java
index aa1dbeb..825e5d3 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexFileManager.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexFileManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -26,7 +26,6 @@
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.api.io.FileReference;
-import edu.uci.ics.hyracks.api.io.IIOManager;
 import edu.uci.ics.hyracks.storage.am.common.api.IndexException;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.AbstractLSMIndexFileManager;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.BTreeFactory;
@@ -61,9 +60,8 @@
         }
     };
 
-    public LSMInvertedIndexFileManager(IIOManager ioManager, IFileMapProvider fileMapProvider, FileReference file,
-            BTreeFactory btreeFactory, int ioDeviceId) {
-        super(ioManager, fileMapProvider, file, null, ioDeviceId);
+    public LSMInvertedIndexFileManager(IFileMapProvider fileMapProvider, FileReference file, BTreeFactory btreeFactory) {
+        super(fileMapProvider, file, null);
         this.btreeFactory = btreeFactory;
     }
 
@@ -99,8 +97,8 @@
         ArrayList<ComparableFileName> allDeletedKeysBTreeFiles = new ArrayList<ComparableFileName>();
         ArrayList<ComparableFileName> allBloomFilterFiles = new ArrayList<ComparableFileName>();
 
-        // Gather files from the IODeviceHandle.
-        cleanupAndGetValidFilesInternal(dev, deletedKeysBTreeFilter, btreeFactory, allDeletedKeysBTreeFiles);
+        // Gather files.
+        cleanupAndGetValidFilesInternal(deletedKeysBTreeFilter, btreeFactory, allDeletedKeysBTreeFiles);
         HashSet<String> deletedKeysBTreeFilesSet = new HashSet<String>();
         for (ComparableFileName cmpFileName : allDeletedKeysBTreeFiles) {
             int index = cmpFileName.fileName.lastIndexOf(SPLIT_STRING);
@@ -108,9 +106,9 @@
         }
 
         // TODO: do we really need to validate the inverted lists files or is validating the dict. BTrees is enough?
-        validateFiles(dev, deletedKeysBTreeFilesSet, allInvListsFiles, invListFilter, null);
-        validateFiles(dev, deletedKeysBTreeFilesSet, allDictBTreeFiles, dictBTreeFilter, btreeFactory);
-        validateFiles(dev, deletedKeysBTreeFilesSet, allBloomFilterFiles, bloomFilterFilter, null);
+        validateFiles(deletedKeysBTreeFilesSet, allInvListsFiles, invListFilter, null);
+        validateFiles(deletedKeysBTreeFilesSet, allDictBTreeFiles, dictBTreeFilter, btreeFactory);
+        validateFiles(deletedKeysBTreeFilesSet, allBloomFilterFiles, bloomFilterFilter, null);
 
         // Sanity check.
         if (allDictBTreeFiles.size() != allInvListsFiles.size()
@@ -151,30 +149,30 @@
         validComparableBloomFilterFiles.add(lastBloomFilter);
 
         for (int i = 1; i < allDictBTreeFiles.size(); i++) {
-            ComparableFileName currentRTree = allDictBTreeFiles.get(i);
-            ComparableFileName currentBTree = allDictBTreeFiles.get(i);
+            ComparableFileName currentDeletedKeysBTree = allDeletedKeysBTreeFiles.get(i);
+            ComparableFileName CurrentDictBTree = allDictBTreeFiles.get(i);
             ComparableFileName currentBloomFilter = allBloomFilterFiles.get(i);
             // Current start timestamp is greater than last stop timestamp.
-            if (currentRTree.interval[0].compareTo(lastDeletedKeysBTree.interval[1]) > 0
-                    && currentBTree.interval[0].compareTo(lastDeletedKeysBTree.interval[1]) > 0
+            if (currentDeletedKeysBTree.interval[0].compareTo(lastDeletedKeysBTree.interval[1]) > 0
+                    && CurrentDictBTree.interval[0].compareTo(lastDictBTree.interval[1]) > 0
                     && currentBloomFilter.interval[0].compareTo(lastBloomFilter.interval[1]) > 0) {
-                validComparableDictBTreeFiles.add(currentRTree);
-                validComparableDeletedKeysBTreeFiles.add(currentBTree);
+                validComparableDictBTreeFiles.add(CurrentDictBTree);
+                validComparableDeletedKeysBTreeFiles.add(currentDeletedKeysBTree);
                 validComparableBloomFilterFiles.add(currentBloomFilter);
-                lastDictBTree = currentRTree;
-                lastDeletedKeysBTree = currentBTree;
+                lastDictBTree = CurrentDictBTree;
+                lastDeletedKeysBTree = currentDeletedKeysBTree;
                 lastBloomFilter = currentBloomFilter;
-            } else if (currentRTree.interval[0].compareTo(lastDictBTree.interval[0]) >= 0
-                    && currentRTree.interval[1].compareTo(lastDictBTree.interval[1]) <= 0
-                    && currentBTree.interval[0].compareTo(lastDeletedKeysBTree.interval[0]) >= 0
-                    && currentBTree.interval[1].compareTo(lastDeletedKeysBTree.interval[1]) <= 0
+            } else if (currentDeletedKeysBTree.interval[0].compareTo(lastDeletedKeysBTree.interval[0]) >= 0
+                    && currentDeletedKeysBTree.interval[1].compareTo(lastDeletedKeysBTree.interval[1]) <= 0
+                    && CurrentDictBTree.interval[0].compareTo(lastDictBTree.interval[0]) >= 0
+                    && CurrentDictBTree.interval[1].compareTo(lastDictBTree.interval[1]) <= 0
                     && currentBloomFilter.interval[0].compareTo(lastBloomFilter.interval[0]) >= 0
                     && currentBloomFilter.interval[1].compareTo(lastBloomFilter.interval[1]) <= 0) {
                 // Invalid files are completely contained in last interval.
-                File invalidRTreeFile = new File(currentRTree.fullPath);
-                invalidRTreeFile.delete();
-                File invalidBTreeFile = new File(currentBTree.fullPath);
-                invalidBTreeFile.delete();
+                File invalidDeletedBTreeFile = new File(currentDeletedKeysBTree.fullPath);
+                invalidDeletedBTreeFile.delete();
+                File invalidDictBTreeFile = new File(CurrentDictBTree.fullPath);
+                invalidDictBTreeFile.delete();
                 File invalidBloomFilterFile = new File(currentBloomFilter.fullPath);
                 invalidBloomFilterFile.delete();
             } else {
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexFlushOperation.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexFlushOperation.java
index eedf0da..a8973d1 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexFlushOperation.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexFlushOperation.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexImmutableComponent.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexImmutableComponent.java
index 4c9b5e8..829d5d4 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexImmutableComponent.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexImmutableComponent.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.invertedindex.impls;
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexMergeOperation.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexMergeOperation.java
index dea628c..7714808 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexMergeOperation.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexMergeOperation.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexMutableComponent.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexMutableComponent.java
index 615f1ee..7084803 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexMutableComponent.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexMutableComponent.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -17,7 +17,7 @@
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.storage.am.btree.impls.BTree;
-import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.AbstractMutableLSMComponent;
 import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.api.IInvertedIndex;
 
@@ -25,13 +25,12 @@
 
     private final IInvertedIndex invIndex;
     private final BTree deletedKeysBTree;
-    private final IInMemoryFreePageManager mfpm;
+    private final IVirtualBufferCache vbc;
 
-    public LSMInvertedIndexMutableComponent(IInvertedIndex invIndex, BTree deletedKeysBTree,
-            IInMemoryFreePageManager mfpm) {
+    public LSMInvertedIndexMutableComponent(IInvertedIndex invIndex, BTree deletedKeysBTree, IVirtualBufferCache vbc) {
         this.invIndex = invIndex;
         this.deletedKeysBTree = deletedKeysBTree;
-        this.mfpm = mfpm;
+        this.vbc = vbc;
     }
 
     public IInvertedIndex getInvIndex() {
@@ -44,13 +43,19 @@
 
     @Override
     protected boolean isFull() {
-        return mfpm.isFull();
+        return vbc.isFull();
     }
 
     @Override
     protected void reset() throws HyracksDataException {
         super.reset();
-        invIndex.clear();
-        deletedKeysBTree.clear();
+        invIndex.deactivate();
+        invIndex.destroy();
+        invIndex.create();
+        invIndex.activate();
+        deletedKeysBTree.deactivate();
+        deletedKeysBTree.destroy();
+        deletedKeysBTree.create();
+        deletedKeysBTree.activate();
     }
 }
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexOpContext.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexOpContext.java
index 36aa57e..fd83bfb 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexOpContext.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexOpContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexRangeSearchCursor.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexRangeSearchCursor.java
index 1b5949a..820b516 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexRangeSearchCursor.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexRangeSearchCursor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexRangeSearchCursorInitialState.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexRangeSearchCursorInitialState.java
index 0cec92e..7a14980 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexRangeSearchCursorInitialState.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexRangeSearchCursorInitialState.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexSearchCursor.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexSearchCursor.java
index 36ad51b..882d1a1 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexSearchCursor.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexSearchCursor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -166,17 +166,21 @@
     @Override
     public void close() throws HyracksDataException {
         reset();
-        accessorIndex = -1;
-        harness.endSearch(opCtx);
     }
 
     @Override
     public void reset() throws HyracksDataException {
-        if (currentCursor != null) {
-            currentCursor.close();
-            currentCursor = null;
+        try {
+            if (currentCursor != null) {
+                currentCursor.close();
+                currentCursor = null;
+            }
+            accessorIndex = 0;
+        } finally {
+            if (harness != null) {
+                harness.endSearch(opCtx);
+            }
         }
-        accessorIndex = 0;
     }
 
     @Override
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexSearchCursorInitialState.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexSearchCursorInitialState.java
index eb6f338..c30422f 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexSearchCursorInitialState.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/LSMInvertedIndexSearchCursorInitialState.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/PartitionedLSMInvertedIndex.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/PartitionedLSMInvertedIndex.java
index a45f729..185321b 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/PartitionedLSMInvertedIndex.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/impls/PartitionedLSMInvertedIndex.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -15,17 +15,19 @@
 
 package edu.uci.ics.hyracks.storage.am.lsm.invertedindex.impls;
 
+import java.io.File;
+
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
+import edu.uci.ics.hyracks.api.io.FileReference;
 import edu.uci.ics.hyracks.storage.am.bloomfilter.impls.BloomFilterFactory;
-import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
 import edu.uci.ics.hyracks.storage.am.common.api.IndexException;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.IInMemoryBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationScheduler;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndexFileManager;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicy;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTracker;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.BTreeFactory;
 import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.inmemory.InMemoryInvertedIndex;
 import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.ondisk.OnDiskInvertedIndexFactory;
@@ -35,26 +37,25 @@
 
 public class PartitionedLSMInvertedIndex extends LSMInvertedIndex {
 
-    public PartitionedLSMInvertedIndex(IInMemoryBufferCache memBufferCache,
-            IInMemoryFreePageManager memFreePageManager, OnDiskInvertedIndexFactory diskInvIndexFactory,
-            BTreeFactory deletedKeysBTreeFactory, BloomFilterFactory bloomFilterFactory,
-            double bloomFilterFalsePositiveRate, ILSMIndexFileManager fileManager,
-            IFileMapProvider diskFileMapProvider, ITypeTraits[] invListTypeTraits,
+    public PartitionedLSMInvertedIndex(IVirtualBufferCache virtualBufferCache,
+            OnDiskInvertedIndexFactory diskInvIndexFactory, BTreeFactory deletedKeysBTreeFactory,
+            BloomFilterFactory bloomFilterFactory, double bloomFilterFalsePositiveRate,
+            ILSMIndexFileManager fileManager, IFileMapProvider diskFileMapProvider, ITypeTraits[] invListTypeTraits,
             IBinaryComparatorFactory[] invListCmpFactories, ITypeTraits[] tokenTypeTraits,
             IBinaryComparatorFactory[] tokenCmpFactories, IBinaryTokenizerFactory tokenizerFactory,
-            ILSMMergePolicy mergePolicy, ILSMOperationTrackerFactory opTrackerFactory,
-            ILSMIOOperationScheduler ioScheduler, ILSMIOOperationCallbackProvider ioOpCallbackProvider)
-            throws IndexException {
-        super(memBufferCache, memFreePageManager, diskInvIndexFactory, deletedKeysBTreeFactory, bloomFilterFactory,
+            ILSMMergePolicy mergePolicy, ILSMOperationTracker opTracker, ILSMIOOperationScheduler ioScheduler,
+            ILSMIOOperationCallbackProvider ioOpCallbackProvider) throws IndexException {
+        super(virtualBufferCache, diskInvIndexFactory, deletedKeysBTreeFactory, bloomFilterFactory,
                 bloomFilterFalsePositiveRate, fileManager, diskFileMapProvider, invListTypeTraits, invListCmpFactories,
-                tokenTypeTraits, tokenCmpFactories, tokenizerFactory, mergePolicy, opTrackerFactory, ioScheduler,
+                tokenTypeTraits, tokenCmpFactories, tokenizerFactory, mergePolicy, opTracker, ioScheduler,
                 ioOpCallbackProvider);
     }
 
-    protected InMemoryInvertedIndex createInMemoryInvertedIndex(IInMemoryBufferCache memBufferCache)
+    protected InMemoryInvertedIndex createInMemoryInvertedIndex(IVirtualBufferCache virtualBufferCache)
             throws IndexException {
-        return InvertedIndexUtils.createPartitionedInMemoryBTreeInvertedindex(memBufferCache, memFreePageManager,
-                invListTypeTraits, invListCmpFactories, tokenTypeTraits, tokenCmpFactories, tokenizerFactory);
+        return InvertedIndexUtils.createPartitionedInMemoryBTreeInvertedindex(virtualBufferCache,
+                virtualFreePageManager, invListTypeTraits, invListCmpFactories, tokenTypeTraits, tokenCmpFactories,
+                tokenizerFactory, new FileReference(new File(fileManager.getBaseDir() + "_virtual_vocab")));
     }
 
 }
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/InMemoryInvertedIndex.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/InMemoryInvertedIndex.java
index 28408eb..222f4de 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/InMemoryInvertedIndex.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/InMemoryInvertedIndex.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -14,8 +14,6 @@
  */
 package edu.uci.ics.hyracks.storage.am.lsm.invertedindex.inmemory;
 
-import java.io.File;
-
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
@@ -36,7 +34,7 @@
 import edu.uci.ics.hyracks.storage.am.common.api.ISearchOperationCallback;
 import edu.uci.ics.hyracks.storage.am.common.api.IndexException;
 import edu.uci.ics.hyracks.storage.am.common.ophelpers.IndexOperation;
-import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.InMemoryBufferCache;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.api.IInvertedIndex;
 import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.api.IInvertedListCursor;
 import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers.IBinaryTokenizerFactory;
@@ -45,7 +43,6 @@
 public class InMemoryInvertedIndex implements IInvertedIndex {
 
     protected final BTree btree;
-    protected final FileReference memBTreeFile = new FileReference(new File("memBTree"));
     protected final ITypeTraits[] tokenTypeTraits;
     protected final IBinaryComparatorFactory[] tokenCmpFactories;
     protected final ITypeTraits[] invListTypeTraits;
@@ -55,10 +52,10 @@
     protected final ITypeTraits[] btreeTypeTraits;
     protected final IBinaryComparatorFactory[] btreeCmpFactories;
 
-    public InMemoryInvertedIndex(IBufferCache memBufferCache, IFreePageManager memFreePageManager,
+    public InMemoryInvertedIndex(IBufferCache virtualBufferCache, IFreePageManager virtualFreePageManager,
             ITypeTraits[] invListTypeTraits, IBinaryComparatorFactory[] invListCmpFactories,
             ITypeTraits[] tokenTypeTraits, IBinaryComparatorFactory[] tokenCmpFactories,
-            IBinaryTokenizerFactory tokenizerFactory) throws BTreeException {
+            IBinaryTokenizerFactory tokenizerFactory, FileReference btreeFileRef) throws BTreeException {
         this.tokenTypeTraits = tokenTypeTraits;
         this.tokenCmpFactories = tokenCmpFactories;
         this.invListTypeTraits = invListTypeTraits;
@@ -76,9 +73,9 @@
             btreeTypeTraits[tokenTypeTraits.length + i] = invListTypeTraits[i];
             btreeCmpFactories[tokenTypeTraits.length + i] = invListCmpFactories[i];
         }
-        this.btree = BTreeUtils.createBTree(memBufferCache, memFreePageManager,
-                ((InMemoryBufferCache) memBufferCache).getFileMapProvider(), btreeTypeTraits, btreeCmpFactories,
-                BTreeLeafFrameType.REGULAR_NSM, memBTreeFile);
+        this.btree = BTreeUtils.createBTree(virtualBufferCache, virtualFreePageManager,
+                ((IVirtualBufferCache) virtualBufferCache).getFileMapProvider(), btreeTypeTraits, btreeCmpFactories,
+                BTreeLeafFrameType.REGULAR_NSM, btreeFileRef);
     }
 
     @Override
@@ -145,8 +142,8 @@
 
     @Override
     public long getMemoryAllocationSize() {
-        InMemoryBufferCache memBufferCache = (InMemoryBufferCache) btree.getBufferCache();
-        return memBufferCache.getNumPages() * memBufferCache.getPageSize();
+        IBufferCache virtualBufferCache = btree.getBufferCache();
+        return virtualBufferCache.getNumPages() * virtualBufferCache.getPageSize();
     }
 
     @Override
@@ -191,8 +188,8 @@
     }
 
     @Override
-    public IIndexBulkLoader createBulkLoader(float fillFactor, boolean verifyInput, long numElementsHint)
-            throws IndexException {
+    public IIndexBulkLoader createBulkLoader(float fillFactor, boolean verifyInput, long numElementsHint,
+            boolean checkIfEmptyIndex) throws IndexException {
         throw new UnsupportedOperationException("Bulk load not supported by in-memory inverted index.");
     }
 
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/InMemoryInvertedIndexAccessor.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/InMemoryInvertedIndexAccessor.java
index 7d6901f..7e9b483 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/InMemoryInvertedIndexAccessor.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/InMemoryInvertedIndexAccessor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/InMemoryInvertedIndexOpContext.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/InMemoryInvertedIndexOpContext.java
index 9c8865e..edbe240 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/InMemoryInvertedIndexOpContext.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/InMemoryInvertedIndexOpContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/InMemoryInvertedListCursor.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/InMemoryInvertedListCursor.java
index 6af3bd2..c742d0c 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/InMemoryInvertedListCursor.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/InMemoryInvertedListCursor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/PartitionedInMemoryInvertedIndex.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/PartitionedInMemoryInvertedIndex.java
index 77dca2d..eb06758 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/PartitionedInMemoryInvertedIndex.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/PartitionedInMemoryInvertedIndex.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -20,6 +20,7 @@
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.api.io.FileReference;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
 import edu.uci.ics.hyracks.storage.am.btree.exceptions.BTreeException;
 import edu.uci.ics.hyracks.storage.am.btree.impls.BTree.BTreeAccessor;
@@ -48,9 +49,9 @@
     public PartitionedInMemoryInvertedIndex(IBufferCache memBufferCache, IFreePageManager memFreePageManager,
             ITypeTraits[] invListTypeTraits, IBinaryComparatorFactory[] invListCmpFactories,
             ITypeTraits[] tokenTypeTraits, IBinaryComparatorFactory[] tokenCmpFactories,
-            IBinaryTokenizerFactory tokenizerFactory) throws BTreeException {
+            IBinaryTokenizerFactory tokenizerFactory, FileReference btreeFileRef) throws BTreeException {
         super(memBufferCache, memFreePageManager, invListTypeTraits, invListCmpFactories, tokenTypeTraits,
-                tokenCmpFactories, tokenizerFactory);
+                tokenCmpFactories, tokenizerFactory, btreeFileRef);
     }
 
     @Override
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/PartitionedInMemoryInvertedIndexAccessor.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/PartitionedInMemoryInvertedIndexAccessor.java
index 61f0da1..6b8bf00 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/PartitionedInMemoryInvertedIndexAccessor.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/PartitionedInMemoryInvertedIndexAccessor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/PartitionedInMemoryInvertedIndexOpContext.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/PartitionedInMemoryInvertedIndexOpContext.java
index f0e5046..98db933 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/PartitionedInMemoryInvertedIndexOpContext.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/PartitionedInMemoryInvertedIndexOpContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/FixedSizeElementInvertedListBuilder.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/FixedSizeElementInvertedListBuilder.java
index fd12792..6375f8b 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/FixedSizeElementInvertedListBuilder.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/FixedSizeElementInvertedListBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/FixedSizeElementInvertedListBuilderFactory.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/FixedSizeElementInvertedListBuilderFactory.java
index ca2d3b6..673e880 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/FixedSizeElementInvertedListBuilderFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/FixedSizeElementInvertedListBuilderFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/FixedSizeElementInvertedListCursor.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/FixedSizeElementInvertedListCursor.java
index f55a700..1cd4a86 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/FixedSizeElementInvertedListCursor.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/FixedSizeElementInvertedListCursor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/FixedSizeFrameTupleAccessor.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/FixedSizeFrameTupleAccessor.java
index d00c6d3..59690c3 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/FixedSizeFrameTupleAccessor.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/FixedSizeFrameTupleAccessor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/FixedSizeFrameTupleAppender.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/FixedSizeFrameTupleAppender.java
index 2a8bf8d..a79305c 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/FixedSizeFrameTupleAppender.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/FixedSizeFrameTupleAppender.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/FixedSizeTupleReference.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/FixedSizeTupleReference.java
index 97f6937..42c2e30 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/FixedSizeTupleReference.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/FixedSizeTupleReference.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndex.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndex.java
index 3af1dc9..0ab2f4d 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndex.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndex.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -161,7 +161,7 @@
     @Override
     public synchronized void activate() throws HyracksDataException {
         if (isOpen) {
-            return;
+            throw new HyracksDataException("Failed to activate the index since it is already activated.");
         }
 
         btree.activate();
@@ -190,7 +190,7 @@
     @Override
     public synchronized void deactivate() throws HyracksDataException {
         if (!isOpen) {
-            return;
+            throw new HyracksDataException("Failed to deactivate the index since it is already deactivated.");
         }
 
         btree.deactivate();
@@ -303,7 +303,7 @@
         private final MultiComparator allCmp;
 
         public OnDiskInvertedIndexBulkLoader(float btreeFillFactor, boolean verifyInput, long numElementsHint,
-                int startPageId, int fileId) throws IndexException, HyracksDataException {
+                boolean checkIfEmptyIndex, int startPageId, int fileId) throws IndexException, HyracksDataException {
             this.verifyInput = verifyInput;
             this.tokenCmp = MultiComparator.create(btree.getComparatorFactories());
             this.invListCmp = MultiComparator.create(invListCmpFactories);
@@ -316,7 +316,8 @@
             this.btreeTupleReference = new ArrayTupleReference();
             this.lastTupleBuilder = new ArrayTupleBuilder(numTokenFields + numInvListKeys);
             this.lastTuple = new ArrayTupleReference();
-            this.btreeBulkloader = btree.createBulkLoader(btreeFillFactor, verifyInput, numElementsHint);
+            this.btreeBulkloader = btree.createBulkLoader(btreeFillFactor, verifyInput, numElementsHint,
+                    checkIfEmptyIndex);
             currentPageId = startPageId;
             currentPage = bufferCache.pin(BufferedFileHandle.getDiskPageId(fileId, currentPageId), true);
             currentPage.acquireWriteLatch();
@@ -563,10 +564,11 @@
     }
 
     @Override
-    public IIndexBulkLoader createBulkLoader(float fillFactor, boolean verifyInput, long numElementsHint)
-            throws IndexException {
+    public IIndexBulkLoader createBulkLoader(float fillFactor, boolean verifyInput, long numElementsHint,
+            boolean checkIfEmptyIndex) throws IndexException {
         try {
-            return new OnDiskInvertedIndexBulkLoader(fillFactor, verifyInput, numElementsHint, rootPageId, fileId);
+            return new OnDiskInvertedIndexBulkLoader(fillFactor, verifyInput, numElementsHint, checkIfEmptyIndex,
+                    rootPageId, fileId);
         } catch (HyracksDataException e) {
             throw new InvertedIndexException(e);
         }
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndexFactory.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndexFactory.java
index 5401519..7c10f81 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndexFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndexFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndexOpContext.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndexOpContext.java
index 9e6194e..5c47601 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndexOpContext.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndexOpContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndexRangeSearchCursor.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndexRangeSearchCursor.java
index b41b0d1..defe29c 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndexRangeSearchCursor.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndexRangeSearchCursor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndexSearchCursor.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndexSearchCursor.java
index 3060ef4..10b6a9e 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndexSearchCursor.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndexSearchCursor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/PartitionedOnDiskInvertedIndex.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/PartitionedOnDiskInvertedIndex.java
index 203ccb5..6f7873b 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/PartitionedOnDiskInvertedIndex.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/PartitionedOnDiskInvertedIndex.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/PartitionedOnDiskInvertedIndexFactory.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/PartitionedOnDiskInvertedIndexFactory.java
index 854a30f..df1b748 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/PartitionedOnDiskInvertedIndexFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/PartitionedOnDiskInvertedIndexFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/AbstractTOccurrenceSearcher.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/AbstractTOccurrenceSearcher.java
index 0a372b6..2bbf1f3 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/AbstractTOccurrenceSearcher.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/AbstractTOccurrenceSearcher.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/ArrayListFactory.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/ArrayListFactory.java
index 493063e..7e9b3ef 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/ArrayListFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/ArrayListFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/ConjunctiveSearchModifier.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/ConjunctiveSearchModifier.java
index 318f1e1..08f59cb 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/ConjunctiveSearchModifier.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/ConjunctiveSearchModifier.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/ConjunctiveSearchModifierFactory.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/ConjunctiveSearchModifierFactory.java
index 83e1f4b..878dfbc 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/ConjunctiveSearchModifierFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/ConjunctiveSearchModifierFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/EditDistanceSearchModifier.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/EditDistanceSearchModifier.java
index 9c06f4d..bf2008e 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/EditDistanceSearchModifier.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/EditDistanceSearchModifier.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/EditDistanceSearchModifierFactory.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/EditDistanceSearchModifierFactory.java
index 879c34e..8f83b7b 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/EditDistanceSearchModifierFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/EditDistanceSearchModifierFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/InvertedIndexSearchPredicate.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/InvertedIndexSearchPredicate.java
index 2065691..2e83648 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/InvertedIndexSearchPredicate.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/InvertedIndexSearchPredicate.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/InvertedListCursorFactory.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/InvertedListCursorFactory.java
index b4b3c43..0d13808 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/InvertedListCursorFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/InvertedListCursorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/InvertedListMerger.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/InvertedListMerger.java
index a2b6d83..692a640 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/InvertedListMerger.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/InvertedListMerger.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/InvertedListPartitions.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/InvertedListPartitions.java
index 1b060e5..7c5bf2e 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/InvertedListPartitions.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/InvertedListPartitions.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/JaccardSearchModifier.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/JaccardSearchModifier.java
index ede6041..f5b4352 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/JaccardSearchModifier.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/JaccardSearchModifier.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/JaccardSearchModifierFactory.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/JaccardSearchModifierFactory.java
index 270862b..f24d88e 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/JaccardSearchModifierFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/JaccardSearchModifierFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/ListEditDistanceSearchModifier.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/ListEditDistanceSearchModifier.java
index 8ae22a5..1b26639 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/ListEditDistanceSearchModifier.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/ListEditDistanceSearchModifier.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/ListEditDistanceSearchModifierFactory.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/ListEditDistanceSearchModifierFactory.java
index d8f57b1..42d7e6f 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/ListEditDistanceSearchModifierFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/ListEditDistanceSearchModifierFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/PartitionedTOccurrenceSearcher.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/PartitionedTOccurrenceSearcher.java
index c6d6554..adad532 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/PartitionedTOccurrenceSearcher.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/PartitionedTOccurrenceSearcher.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/SearchResult.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/SearchResult.java
index ffaf966..c4056c5 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/SearchResult.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/SearchResult.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/TOccurrenceSearcher.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/TOccurrenceSearcher.java
index c81630b..348ef75 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/TOccurrenceSearcher.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/search/TOccurrenceSearcher.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/AbstractUTF8StringBinaryTokenizer.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/AbstractUTF8StringBinaryTokenizer.java
index 7c0ec4d..af20ad2 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/AbstractUTF8StringBinaryTokenizer.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/AbstractUTF8StringBinaryTokenizer.java
@@ -1,20 +1,16 @@
-/**
- * Copyright 2010-2011 The Regents of the University of California
- *
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on
- * an "AS IS"; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations under
- * the License.
+ * you may obtain a copy of the License from
  * 
- * Author: Alexander Behm <abehm (at) ics.uci.edu>
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 package edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers;
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/AbstractUTF8Token.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/AbstractUTF8Token.java
index c9b6e1f..45adc1f 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/AbstractUTF8Token.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/AbstractUTF8Token.java
@@ -1,20 +1,16 @@
-/**
- * Copyright 2010-2011 The Regents of the University of California
- *
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on
- * an "AS IS"; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations under
- * the License.
+ * you may obtain a copy of the License from
  * 
- * Author: Alexander Behm <abehm (at) ics.uci.edu>
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 package edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers;
 
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/AbstractUTF8TokenFactory.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/AbstractUTF8TokenFactory.java
index 1507613..0b0a976 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/AbstractUTF8TokenFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/AbstractUTF8TokenFactory.java
@@ -1,20 +1,16 @@
-/**
- * Copyright 2010-2011 The Regents of the University of California
- *
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on
- * an "AS IS"; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations under
- * the License.
+ * you may obtain a copy of the License from
  * 
- * Author: Alexander Behm <abehm (at) ics.uci.edu>
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 package edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers;
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/DelimitedUTF8StringBinaryTokenizer.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/DelimitedUTF8StringBinaryTokenizer.java
index 4c11523..daf853a 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/DelimitedUTF8StringBinaryTokenizer.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/DelimitedUTF8StringBinaryTokenizer.java
@@ -1,20 +1,16 @@
-/**
- * Copyright 2010-2011 The Regents of the University of California
- *
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on
- * an "AS IS"; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations under
- * the License.
+ * you may obtain a copy of the License from
  * 
- * Author: Alexander Behm <abehm (at) ics.uci.edu>
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 package edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers;
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/DelimitedUTF8StringBinaryTokenizerFactory.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/DelimitedUTF8StringBinaryTokenizerFactory.java
index 08b962b..5e293ba 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/DelimitedUTF8StringBinaryTokenizerFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/DelimitedUTF8StringBinaryTokenizerFactory.java
@@ -1,20 +1,16 @@
-/**
- * Copyright 2010-2011 The Regents of the University of California
- *
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on
- * an "AS IS"; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations under
- * the License.
+ * you may obtain a copy of the License from
  * 
- * Author: Alexander Behm <abehm (at) ics.uci.edu>
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 package edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers;
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/HashedUTF8NGramToken.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/HashedUTF8NGramToken.java
index 632bf9a..eb7efb2 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/HashedUTF8NGramToken.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/HashedUTF8NGramToken.java
@@ -1,20 +1,16 @@
-/**
- * Copyright 2010-2011 The Regents of the University of California
- *
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on
- * an "AS IS"; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations under
- * the License.
+ * you may obtain a copy of the License from
  * 
- * Author: Alexander Behm <abehm (at) ics.uci.edu>
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 package edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers;
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/HashedUTF8NGramTokenFactory.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/HashedUTF8NGramTokenFactory.java
index e1d8e31..916e2b5 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/HashedUTF8NGramTokenFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/HashedUTF8NGramTokenFactory.java
@@ -1,20 +1,16 @@
-/**
- * Copyright 2010-2011 The Regents of the University of California
- *
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on
- * an "AS IS"; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations under
- * the License.
+ * you may obtain a copy of the License from
  * 
- * Author: Alexander Behm <abehm (at) ics.uci.edu>
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 package edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers;
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/HashedUTF8WordToken.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/HashedUTF8WordToken.java
index 32954f9..301db3e 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/HashedUTF8WordToken.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/HashedUTF8WordToken.java
@@ -1,20 +1,16 @@
-/**
- * Copyright 2010-2011 The Regents of the University of California
- *
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on
- * an "AS IS"; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations under
- * the License.
+ * you may obtain a copy of the License from
  * 
- * Author: Alexander Behm <abehm (at) ics.uci.edu>
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 package edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers;
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/HashedUTF8WordTokenFactory.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/HashedUTF8WordTokenFactory.java
index a4788c4..195428c 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/HashedUTF8WordTokenFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/HashedUTF8WordTokenFactory.java
@@ -1,20 +1,16 @@
-/**
- * Copyright 2010-2011 The Regents of the University of California
- *
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on
- * an "AS IS"; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations under
- * the License.
+ * you may obtain a copy of the License from
  * 
- * Author: Alexander Behm <abehm (at) ics.uci.edu>
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 package edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers;
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/IBinaryTokenizer.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/IBinaryTokenizer.java
index f88e744..207df81 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/IBinaryTokenizer.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/IBinaryTokenizer.java
@@ -1,20 +1,16 @@
-/**
- * Copyright 2010-2011 The Regents of the University of California
- *
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on
- * an "AS IS"; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations under
- * the License.
+ * you may obtain a copy of the License from
  * 
- * Author: Alexander Behm <abehm (at) ics.uci.edu>
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 package edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers;
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/IBinaryTokenizerFactory.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/IBinaryTokenizerFactory.java
index 5890124..4d9dc89 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/IBinaryTokenizerFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/IBinaryTokenizerFactory.java
@@ -1,20 +1,16 @@
-/**
- * Copyright 2010-2011 The Regents of the University of California
- *
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on
- * an "AS IS"; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations under
- * the License.
+ * you may obtain a copy of the License from
  * 
- * Author: Alexander Behm <abehm (at) ics.uci.edu>
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 package edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers;
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/INGramToken.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/INGramToken.java
index 40351c4..fe7e9e7 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/INGramToken.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/INGramToken.java
@@ -1,20 +1,16 @@
-/**
- * Copyright 2010-2011 The Regents of the University of California
- *
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on
- * an "AS IS"; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations under
- * the License.
+ * you may obtain a copy of the License from
  * 
- * Author: Alexander Behm <abehm (at) ics.uci.edu>
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 package edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers;
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/IToken.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/IToken.java
index 7b1a130..bbe5c66 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/IToken.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/IToken.java
@@ -1,20 +1,16 @@
-/**
- * Copyright 2010-2011 The Regents of the University of California
- *
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on
- * an "AS IS"; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations under
- * the License.
+ * you may obtain a copy of the License from
  * 
- * Author: Alexander Behm <abehm (at) ics.uci.edu>
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 package edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers;
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/ITokenFactory.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/ITokenFactory.java
index 5765263..0bf1744 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/ITokenFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/ITokenFactory.java
@@ -1,20 +1,16 @@
-/**
- * Copyright 2010-2011 The Regents of the University of California
- *
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on
- * an "AS IS"; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations under
- * the License.
+ * you may obtain a copy of the License from
  * 
- * Author: Alexander Behm <abehm (at) ics.uci.edu>
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 package edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers;
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/IntArray.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/IntArray.java
index 6bae90b..c3fc6e3 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/IntArray.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/IntArray.java
@@ -1,20 +1,16 @@
-/**
- * Copyright 2010-2011 The Regents of the University of California
- *
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on
- * an "AS IS"; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations under
- * the License.
+ * you may obtain a copy of the License from
  * 
- * Author: Rares Vernica <rares (at) ics.uci.edu>
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 package edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers;
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/NGramUTF8StringBinaryTokenizer.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/NGramUTF8StringBinaryTokenizer.java
index 0af0335..847a923 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/NGramUTF8StringBinaryTokenizer.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/NGramUTF8StringBinaryTokenizer.java
@@ -1,20 +1,16 @@
-/**
- * Copyright 2010-2011 The Regents of the University of California
- *
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on
- * an "AS IS"; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations under
- * the License.
+ * you may obtain a copy of the License from
  * 
- * Author: Alexander Behm <abehm (at) ics.uci.edu>
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 package edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers;
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/NGramUTF8StringBinaryTokenizerFactory.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/NGramUTF8StringBinaryTokenizerFactory.java
index da3d411..0fdd346 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/NGramUTF8StringBinaryTokenizerFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/NGramUTF8StringBinaryTokenizerFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/UTF8NGramToken.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/UTF8NGramToken.java
index 8713499..e51ff2a 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/UTF8NGramToken.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/UTF8NGramToken.java
@@ -1,20 +1,16 @@
-/**
- * Copyright 2010-2011 The Regents of the University of California
- *
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on
- * an "AS IS"; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations under
- * the License.
+ * you may obtain a copy of the License from
  * 
- * Author: Alexander Behm <abehm (at) ics.uci.edu>
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 package edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers;
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/UTF8NGramTokenFactory.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/UTF8NGramTokenFactory.java
index d26a409..e8eeedf 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/UTF8NGramTokenFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/UTF8NGramTokenFactory.java
@@ -1,20 +1,16 @@
-/**
- * Copyright 2010-2011 The Regents of the University of California
- *
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on
- * an "AS IS"; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations under
- * the License.
+ * you may obtain a copy of the License from
  * 
- * Author: Alexander Behm <abehm (at) ics.uci.edu>
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 package edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers;
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/UTF8WordToken.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/UTF8WordToken.java
index dbfc76f..0751f6a 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/UTF8WordToken.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/UTF8WordToken.java
@@ -1,20 +1,16 @@
-/**
- * Copyright 2010-2011 The Regents of the University of California
- *
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on
- * an "AS IS"; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations under
- * the License.
+ * you may obtain a copy of the License from
  * 
- * Author: Alexander Behm <abehm (at) ics.uci.edu>
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 package edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers;
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/UTF8WordTokenFactory.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/UTF8WordTokenFactory.java
index 023e957..c396b8d 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/UTF8WordTokenFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/UTF8WordTokenFactory.java
@@ -1,20 +1,16 @@
-/**
- * Copyright 2010-2011 The Regents of the University of California
- *
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on
- * an "AS IS"; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations under
- * the License.
+ * you may obtain a copy of the License from
  * 
- * Author: Alexander Behm <abehm (at) ics.uci.edu>
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 package edu.uci.ics.hyracks.storage.am.lsm.invertedindex.tokenizers;
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/util/InvertedIndexTokenizingTupleIterator.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/util/InvertedIndexTokenizingTupleIterator.java
index b9f9362..b35b562 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/util/InvertedIndexTokenizingTupleIterator.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/util/InvertedIndexTokenizingTupleIterator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/util/InvertedIndexUtils.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/util/InvertedIndexUtils.java
index 06be7aa..9d85f56 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/util/InvertedIndexUtils.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/util/InvertedIndexUtils.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -20,25 +20,23 @@
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
 import edu.uci.ics.hyracks.api.io.FileReference;
-import edu.uci.ics.hyracks.api.io.IIOManager;
 import edu.uci.ics.hyracks.storage.am.bloomfilter.impls.BloomFilterFactory;
 import edu.uci.ics.hyracks.storage.am.btree.exceptions.BTreeException;
 import edu.uci.ics.hyracks.storage.am.btree.frames.BTreeLeafFrameType;
 import edu.uci.ics.hyracks.storage.am.btree.frames.BTreeNSMInteriorFrameFactory;
 import edu.uci.ics.hyracks.storage.am.btree.util.BTreeUtils;
 import edu.uci.ics.hyracks.storage.am.common.api.IFreePageManager;
-import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexFrameFactory;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexMetaDataFrameFactory;
 import edu.uci.ics.hyracks.storage.am.common.api.IndexException;
 import edu.uci.ics.hyracks.storage.am.common.frames.LIFOMetaDataFrameFactory;
 import edu.uci.ics.hyracks.storage.am.common.freepage.LinkedListFreePageManagerFactory;
 import edu.uci.ics.hyracks.storage.am.common.tuples.TypeAwareTupleWriterFactory;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.IInMemoryBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationScheduler;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicy;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTracker;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.BTreeFactory;
 import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.api.IInvertedListBuilder;
 import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.api.IInvertedListBuilderFactory;
@@ -60,21 +58,21 @@
 public class InvertedIndexUtils {
 
     public static InMemoryInvertedIndex createInMemoryBTreeInvertedindex(IBufferCache memBufferCache,
-            IFreePageManager memFreePageManager, ITypeTraits[] invListTypeTraits,
+            IFreePageManager virtualFreePageManager, ITypeTraits[] invListTypeTraits,
             IBinaryComparatorFactory[] invListCmpFactories, ITypeTraits[] tokenTypeTraits,
-            IBinaryComparatorFactory[] tokenCmpFactories, IBinaryTokenizerFactory tokenizerFactory)
-            throws BTreeException {
-        return new InMemoryInvertedIndex(memBufferCache, memFreePageManager, invListTypeTraits, invListCmpFactories,
-                tokenTypeTraits, tokenCmpFactories, tokenizerFactory);
+            IBinaryComparatorFactory[] tokenCmpFactories, IBinaryTokenizerFactory tokenizerFactory,
+            FileReference btreeFileRef) throws BTreeException {
+        return new InMemoryInvertedIndex(memBufferCache, virtualFreePageManager, invListTypeTraits,
+                invListCmpFactories, tokenTypeTraits, tokenCmpFactories, tokenizerFactory, btreeFileRef);
     }
 
     public static InMemoryInvertedIndex createPartitionedInMemoryBTreeInvertedindex(IBufferCache memBufferCache,
-            IFreePageManager memFreePageManager, ITypeTraits[] invListTypeTraits,
+            IFreePageManager virtualFreePageManager, ITypeTraits[] invListTypeTraits,
             IBinaryComparatorFactory[] invListCmpFactories, ITypeTraits[] tokenTypeTraits,
-            IBinaryComparatorFactory[] tokenCmpFactories, IBinaryTokenizerFactory tokenizerFactory)
-            throws BTreeException {
-        return new PartitionedInMemoryInvertedIndex(memBufferCache, memFreePageManager, invListTypeTraits,
-                invListCmpFactories, tokenTypeTraits, tokenCmpFactories, tokenizerFactory);
+            IBinaryComparatorFactory[] tokenCmpFactories, IBinaryTokenizerFactory tokenizerFactory,
+            FileReference btreeFileRef) throws BTreeException {
+        return new PartitionedInMemoryInvertedIndex(memBufferCache, virtualFreePageManager, invListTypeTraits,
+                invListCmpFactories, tokenTypeTraits, tokenCmpFactories, tokenizerFactory, btreeFileRef);
     }
 
     public static OnDiskInvertedIndex createOnDiskInvertedIndex(IBufferCache bufferCache,
@@ -117,14 +115,13 @@
         return deletedKeysBTreeFactory;
     }
 
-    public static LSMInvertedIndex createLSMInvertedIndex(IInMemoryBufferCache memBufferCache,
-            IInMemoryFreePageManager memFreePageManager, IFileMapProvider diskFileMapProvider,
-            ITypeTraits[] invListTypeTraits, IBinaryComparatorFactory[] invListCmpFactories,
-            ITypeTraits[] tokenTypeTraits, IBinaryComparatorFactory[] tokenCmpFactories,
-            IBinaryTokenizerFactory tokenizerFactory, IBufferCache diskBufferCache, IIOManager ioManager,
-            String onDiskDir, double bloomFilterFalsePositiveRate, ILSMMergePolicy mergePolicy,
-            ILSMOperationTrackerFactory opTrackerFactory, ILSMIOOperationScheduler ioScheduler,
-            ILSMIOOperationCallbackProvider ioOpCallbackProvider, int ioDeviceId) throws IndexException {
+    public static LSMInvertedIndex createLSMInvertedIndex(IVirtualBufferCache virtualBufferCache,
+            IFileMapProvider diskFileMapProvider, ITypeTraits[] invListTypeTraits,
+            IBinaryComparatorFactory[] invListCmpFactories, ITypeTraits[] tokenTypeTraits,
+            IBinaryComparatorFactory[] tokenCmpFactories, IBinaryTokenizerFactory tokenizerFactory,
+            IBufferCache diskBufferCache, String onDiskDir, double bloomFilterFalsePositiveRate,
+            ILSMMergePolicy mergePolicy, ILSMOperationTracker opTracker, ILSMIOOperationScheduler ioScheduler,
+            ILSMIOOperationCallbackProvider ioOpCallbackProvider) throws IndexException {
 
         BTreeFactory deletedKeysBTreeFactory = createDeletedKeysBTreeFactory(diskFileMapProvider, invListTypeTraits,
                 invListCmpFactories, diskBufferCache);
@@ -137,8 +134,8 @@
                 bloomFilterKeyFields);
 
         FileReference onDiskDirFileRef = new FileReference(new File(onDiskDir));
-        LSMInvertedIndexFileManager fileManager = new LSMInvertedIndexFileManager(ioManager, diskFileMapProvider,
-                onDiskDirFileRef, deletedKeysBTreeFactory, ioDeviceId);
+        LSMInvertedIndexFileManager fileManager = new LSMInvertedIndexFileManager(diskFileMapProvider,
+                onDiskDirFileRef, deletedKeysBTreeFactory);
 
         IInvertedListBuilderFactory invListBuilderFactory = new FixedSizeElementInvertedListBuilderFactory(
                 invListTypeTraits);
@@ -146,21 +143,20 @@
                 diskFileMapProvider, invListBuilderFactory, invListTypeTraits, invListCmpFactories, tokenTypeTraits,
                 tokenCmpFactories, fileManager);
 
-        LSMInvertedIndex invIndex = new LSMInvertedIndex(memBufferCache, memFreePageManager, invIndexFactory,
-                deletedKeysBTreeFactory, bloomFilterFactory, bloomFilterFalsePositiveRate, fileManager,
-                diskFileMapProvider, invListTypeTraits, invListCmpFactories, tokenTypeTraits, tokenCmpFactories,
-                tokenizerFactory, mergePolicy, opTrackerFactory, ioScheduler, ioOpCallbackProvider);
+        LSMInvertedIndex invIndex = new LSMInvertedIndex(virtualBufferCache, invIndexFactory, deletedKeysBTreeFactory,
+                bloomFilterFactory, bloomFilterFalsePositiveRate, fileManager, diskFileMapProvider, invListTypeTraits,
+                invListCmpFactories, tokenTypeTraits, tokenCmpFactories, tokenizerFactory, mergePolicy, opTracker,
+                ioScheduler, ioOpCallbackProvider);
         return invIndex;
     }
 
-    public static PartitionedLSMInvertedIndex createPartitionedLSMInvertedIndex(IInMemoryBufferCache memBufferCache,
-            IInMemoryFreePageManager memFreePageManager, IFileMapProvider diskFileMapProvider,
-            ITypeTraits[] invListTypeTraits, IBinaryComparatorFactory[] invListCmpFactories,
-            ITypeTraits[] tokenTypeTraits, IBinaryComparatorFactory[] tokenCmpFactories,
-            IBinaryTokenizerFactory tokenizerFactory, IBufferCache diskBufferCache, IIOManager ioManager,
-            String onDiskDir, double bloomFilterFalsePositiveRate, ILSMMergePolicy mergePolicy,
-            ILSMOperationTrackerFactory opTrackerFactory, ILSMIOOperationScheduler ioScheduler,
-            ILSMIOOperationCallbackProvider ioOpCallbackProvider, int ioDeviceId) throws IndexException {
+    public static PartitionedLSMInvertedIndex createPartitionedLSMInvertedIndex(IVirtualBufferCache virtualBufferCache,
+            IFileMapProvider diskFileMapProvider, ITypeTraits[] invListTypeTraits,
+            IBinaryComparatorFactory[] invListCmpFactories, ITypeTraits[] tokenTypeTraits,
+            IBinaryComparatorFactory[] tokenCmpFactories, IBinaryTokenizerFactory tokenizerFactory,
+            IBufferCache diskBufferCache, String onDiskDir, double bloomFilterFalsePositiveRate,
+            ILSMMergePolicy mergePolicy, ILSMOperationTracker opTracker, ILSMIOOperationScheduler ioScheduler,
+            ILSMIOOperationCallbackProvider ioOpCallbackProvider) throws IndexException {
 
         BTreeFactory deletedKeysBTreeFactory = createDeletedKeysBTreeFactory(diskFileMapProvider, invListTypeTraits,
                 invListCmpFactories, diskBufferCache);
@@ -173,8 +169,8 @@
                 bloomFilterKeyFields);
 
         FileReference onDiskDirFileRef = new FileReference(new File(onDiskDir));
-        LSMInvertedIndexFileManager fileManager = new LSMInvertedIndexFileManager(ioManager, diskFileMapProvider,
-                onDiskDirFileRef, deletedKeysBTreeFactory, ioDeviceId);
+        LSMInvertedIndexFileManager fileManager = new LSMInvertedIndexFileManager(diskFileMapProvider,
+                onDiskDirFileRef, deletedKeysBTreeFactory);
 
         IInvertedListBuilderFactory invListBuilderFactory = new FixedSizeElementInvertedListBuilderFactory(
                 invListTypeTraits);
@@ -182,10 +178,10 @@
                 diskBufferCache, diskFileMapProvider, invListBuilderFactory, invListTypeTraits, invListCmpFactories,
                 tokenTypeTraits, tokenCmpFactories, fileManager);
 
-        PartitionedLSMInvertedIndex invIndex = new PartitionedLSMInvertedIndex(memBufferCache, memFreePageManager,
-                invIndexFactory, deletedKeysBTreeFactory, bloomFilterFactory, bloomFilterFalsePositiveRate,
-                fileManager, diskFileMapProvider, invListTypeTraits, invListCmpFactories, tokenTypeTraits,
-                tokenCmpFactories, tokenizerFactory, mergePolicy, opTrackerFactory, ioScheduler, ioOpCallbackProvider);
+        PartitionedLSMInvertedIndex invIndex = new PartitionedLSMInvertedIndex(virtualBufferCache, invIndexFactory,
+                deletedKeysBTreeFactory, bloomFilterFactory, bloomFilterFalsePositiveRate, fileManager,
+                diskFileMapProvider, invListTypeTraits, invListCmpFactories, tokenTypeTraits, tokenCmpFactories,
+                tokenizerFactory, mergePolicy, opTracker, ioScheduler, ioOpCallbackProvider);
         return invIndex;
     }
 }
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/util/ObjectCache.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/util/ObjectCache.java
index b073f20..e6b5590 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/util/ObjectCache.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/util/ObjectCache.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/util/PartitionedInvertedIndexTokenizingTupleIterator.java b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/util/PartitionedInvertedIndexTokenizingTupleIterator.java
index 8a18a91..5e153f4 100644
--- a/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/util/PartitionedInvertedIndexTokenizingTupleIterator.java
+++ b/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/util/PartitionedInvertedIndexTokenizingTupleIterator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/pom.xml b/hyracks/hyracks-storage-am-lsm-rtree/pom.xml
index f842b44..080ba68 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/pom.xml
+++ b/hyracks/hyracks-storage-am-lsm-rtree/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-storage-am-lsm-rtree</artifactId>
@@ -5,7 +19,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -25,21 +39,21 @@
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-storage-am-lsm-common</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-storage-am-btree</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-storage-am-rtree</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>  		
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/dataflow/AbstractLSMRTreeDataflowHelper.java b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/dataflow/AbstractLSMRTreeDataflowHelper.java
index 5fcdcea..9fc8cea 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/dataflow/AbstractLSMRTreeDataflowHelper.java
+++ b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/dataflow/AbstractLSMRTreeDataflowHelper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -21,24 +21,18 @@
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.api.io.FileReference;
-import edu.uci.ics.hyracks.api.io.IIOManager;
-import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
 import edu.uci.ics.hyracks.storage.am.common.api.IPrimitiveValueProviderFactory;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndex;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexMetaDataFrameFactory;
 import edu.uci.ics.hyracks.storage.am.common.dataflow.AbstractTreeIndexOperatorDescriptor;
 import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndexOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.common.frames.LIFOMetaDataFrameFactory;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.IInMemoryBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationScheduler;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicy;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTracker;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerProvider;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.dataflow.AbstractLSMIndexDataflowHelper;
-import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.DualIndexInMemoryBufferCache;
-import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.DualIndexInMemoryFreePageManager;
 import edu.uci.ics.hyracks.storage.am.rtree.frames.RTreePolicyType;
-import edu.uci.ics.hyracks.storage.common.buffercache.HeapBufferAllocator;
 import edu.uci.ics.hyracks.storage.common.buffercache.IBufferCache;
 import edu.uci.ics.hyracks.storage.common.file.IFileMapProvider;
 
@@ -50,25 +44,25 @@
     protected final ILinearizeComparatorFactory linearizeCmpFactory;
 
     public AbstractLSMRTreeDataflowHelper(IIndexOperatorDescriptor opDesc, IHyracksTaskContext ctx, int partition,
-            IBinaryComparatorFactory[] btreeComparatorFactories,
+            IVirtualBufferCache virtualBufferCache, IBinaryComparatorFactory[] btreeComparatorFactories,
             IPrimitiveValueProviderFactory[] valueProviderFactories, RTreePolicyType rtreePolicyType,
-            ILSMMergePolicy mergePolicy, ILSMOperationTrackerFactory opTrackerFactory,
+            ILSMMergePolicy mergePolicy, ILSMOperationTrackerProvider opTrackerFactory,
             ILSMIOOperationScheduler ioScheduler, ILSMIOOperationCallbackProvider ioOpCallbackProvider,
             ILinearizeComparatorFactory linearizeCmpFactory) {
-        this(opDesc, ctx, partition, DEFAULT_MEM_PAGE_SIZE, DEFAULT_MEM_NUM_PAGES,
-                DEFAULT_BLOOM_FILTER_FALSE_POSITIVE_RATE, btreeComparatorFactories, valueProviderFactories,
-                rtreePolicyType, mergePolicy, opTrackerFactory, ioScheduler, ioOpCallbackProvider, linearizeCmpFactory);
+        this(opDesc, ctx, partition, virtualBufferCache, DEFAULT_BLOOM_FILTER_FALSE_POSITIVE_RATE,
+                btreeComparatorFactories, valueProviderFactories, rtreePolicyType, mergePolicy, opTrackerFactory,
+                ioScheduler, ioOpCallbackProvider, linearizeCmpFactory);
     }
 
     public AbstractLSMRTreeDataflowHelper(IIndexOperatorDescriptor opDesc, IHyracksTaskContext ctx, int partition,
-            int memPageSize, int memNumPages, double bloomFilterFalsePositiveRate,
+            IVirtualBufferCache virtualBufferCache, double bloomFilterFalsePositiveRate,
             IBinaryComparatorFactory[] btreeComparatorFactories,
             IPrimitiveValueProviderFactory[] valueProviderFactories, RTreePolicyType rtreePolicyType,
-            ILSMMergePolicy mergePolicy, ILSMOperationTrackerFactory opTrackerFactory,
+            ILSMMergePolicy mergePolicy, ILSMOperationTrackerProvider opTrackerFactory,
             ILSMIOOperationScheduler ioScheduler, ILSMIOOperationCallbackProvider ioOpCallbackProvider,
             ILinearizeComparatorFactory linearizeCmpFactory) {
-        super(opDesc, ctx, partition, memPageSize, memNumPages, bloomFilterFalsePositiveRate, mergePolicy,
-                opTrackerFactory, ioScheduler, ioOpCallbackProvider);
+        super(opDesc, ctx, partition, virtualBufferCache, bloomFilterFalsePositiveRate, mergePolicy, opTrackerFactory,
+                ioScheduler, ioOpCallbackProvider);
         this.btreeComparatorFactories = btreeComparatorFactories;
         this.valueProviderFactories = valueProviderFactories;
         this.rtreePolicyType = rtreePolicyType;
@@ -78,22 +72,17 @@
     @Override
     public ITreeIndex createIndexInstance() throws HyracksDataException {
         AbstractTreeIndexOperatorDescriptor treeOpDesc = (AbstractTreeIndexOperatorDescriptor) opDesc;
-        ITreeIndexMetaDataFrameFactory metaDataFrameFactory = new LIFOMetaDataFrameFactory();
-        IInMemoryBufferCache memBufferCache = new DualIndexInMemoryBufferCache(new HeapBufferAllocator(), memPageSize,
-                memNumPages);
-        IInMemoryFreePageManager memFreePageManager = new DualIndexInMemoryFreePageManager(memNumPages,
-                metaDataFrameFactory);
-        return createLSMTree(memBufferCache, memFreePageManager, ctx.getIOManager(), file, opDesc.getStorageManager()
-                .getBufferCache(ctx), opDesc.getStorageManager().getFileMapProvider(ctx),
-                treeOpDesc.getTreeIndexTypeTraits(), treeOpDesc.getTreeIndexComparatorFactories(),
-                btreeComparatorFactories, valueProviderFactories, rtreePolicyType, linearizeCmpFactory, partition);
+        return createLSMTree(virtualBufferCache, file, opDesc.getStorageManager().getBufferCache(ctx), opDesc
+                .getStorageManager().getFileMapProvider(ctx), treeOpDesc.getTreeIndexTypeTraits(),
+                treeOpDesc.getTreeIndexComparatorFactories(), btreeComparatorFactories,
+                opTrackerFactory.getOperationTracker(ctx), valueProviderFactories, rtreePolicyType, linearizeCmpFactory);
 
     }
 
-    protected abstract ITreeIndex createLSMTree(IInMemoryBufferCache memBufferCache,
-            IInMemoryFreePageManager memFreePageManager, IIOManager ioManager, FileReference file,
+    protected abstract ITreeIndex createLSMTree(IVirtualBufferCache virtualBufferCache, FileReference file,
             IBufferCache diskBufferCache, IFileMapProvider diskFileMapProvider, ITypeTraits[] typeTraits,
             IBinaryComparatorFactory[] rtreeCmpFactories, IBinaryComparatorFactory[] btreeCmpFactories,
-            IPrimitiveValueProviderFactory[] valueProviderFactories, RTreePolicyType rtreePolicyType,
-            ILinearizeComparatorFactory linearizeCmpFactory, int startIODeviceIndex) throws HyracksDataException;
+            ILSMOperationTracker opTracker, IPrimitiveValueProviderFactory[] valueProviderFactories,
+            RTreePolicyType rtreePolicyType, ILinearizeComparatorFactory linearizeCmpFactory)
+            throws HyracksDataException;
 }
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/dataflow/LSMRTreeDataflowHelper.java b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/dataflow/LSMRTreeDataflowHelper.java
index 5ab5513..b47bc02 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/dataflow/LSMRTreeDataflowHelper.java
+++ b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/dataflow/LSMRTreeDataflowHelper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -21,17 +21,16 @@
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.api.io.FileReference;
-import edu.uci.ics.hyracks.api.io.IIOManager;
-import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
 import edu.uci.ics.hyracks.storage.am.common.api.IPrimitiveValueProviderFactory;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndex;
 import edu.uci.ics.hyracks.storage.am.common.api.TreeIndexException;
 import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndexOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.IInMemoryBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationScheduler;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicy;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTracker;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerProvider;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.rtree.utils.LSMRTreeUtils;
 import edu.uci.ics.hyracks.storage.am.rtree.frames.RTreePolicyType;
 import edu.uci.ics.hyracks.storage.common.buffercache.IBufferCache;
@@ -40,40 +39,39 @@
 public class LSMRTreeDataflowHelper extends AbstractLSMRTreeDataflowHelper {
 
     public LSMRTreeDataflowHelper(IIndexOperatorDescriptor opDesc, IHyracksTaskContext ctx, int partition,
-            IBinaryComparatorFactory[] btreeComparatorFactories,
+            IVirtualBufferCache virtualBufferCache, IBinaryComparatorFactory[] btreeComparatorFactories,
             IPrimitiveValueProviderFactory[] valueProviderFactories, RTreePolicyType rtreePolicyType,
-            ILSMMergePolicy mergePolicy, ILSMOperationTrackerFactory opTrackerFactory,
+            ILSMMergePolicy mergePolicy, ILSMOperationTrackerProvider opTrackerFactory,
             ILSMIOOperationScheduler ioScheduler, ILSMIOOperationCallbackProvider ioOpCallbackProvider,
             ILinearizeComparatorFactory linearizeCmpFactory) {
-        super(opDesc, ctx, partition, btreeComparatorFactories, valueProviderFactories, rtreePolicyType, mergePolicy,
-                opTrackerFactory, ioScheduler, ioOpCallbackProvider, linearizeCmpFactory);
+        super(opDesc, ctx, partition, virtualBufferCache, btreeComparatorFactories, valueProviderFactories,
+                rtreePolicyType, mergePolicy, opTrackerFactory, ioScheduler, ioOpCallbackProvider, linearizeCmpFactory);
     }
 
     public LSMRTreeDataflowHelper(IIndexOperatorDescriptor opDesc, IHyracksTaskContext ctx, int partition,
-            int memPageSize, int memNumPages, double bloomFilterFalsePositiveRate,
+            IVirtualBufferCache virtualBufferCache, double bloomFilterFalsePositiveRate,
             IBinaryComparatorFactory[] btreeComparatorFactories,
             IPrimitiveValueProviderFactory[] valueProviderFactories, RTreePolicyType rtreePolicyType,
-            ILSMMergePolicy mergePolicy, ILSMOperationTrackerFactory opTrackerFactory,
+            ILSMMergePolicy mergePolicy, ILSMOperationTrackerProvider opTrackerFactory,
             ILSMIOOperationScheduler ioScheduler, ILSMIOOperationCallbackProvider ioOpCallbackProvider,
             ILinearizeComparatorFactory linearizeCmpFactory) {
-        super(opDesc, ctx, partition, memPageSize, memNumPages, bloomFilterFalsePositiveRate, btreeComparatorFactories,
+        super(opDesc, ctx, partition, virtualBufferCache, bloomFilterFalsePositiveRate, btreeComparatorFactories,
                 valueProviderFactories, rtreePolicyType, mergePolicy, opTrackerFactory, ioScheduler,
                 ioOpCallbackProvider, linearizeCmpFactory);
     }
 
     @Override
-    protected ITreeIndex createLSMTree(IInMemoryBufferCache memBufferCache,
-            IInMemoryFreePageManager memFreePageManager, IIOManager ioManager, FileReference file,
+    protected ITreeIndex createLSMTree(IVirtualBufferCache virtualBufferCache, FileReference file,
             IBufferCache diskBufferCache, IFileMapProvider diskFileMapProvider, ITypeTraits[] typeTraits,
             IBinaryComparatorFactory[] rtreeCmpFactories, IBinaryComparatorFactory[] btreeCmpFactories,
-            IPrimitiveValueProviderFactory[] valueProviderFactories, RTreePolicyType rtreePolicyType,
-            ILinearizeComparatorFactory linearizeCmpFactory, int startIODeviceIndex) throws HyracksDataException {
+            ILSMOperationTracker opTracker, IPrimitiveValueProviderFactory[] valueProviderFactories,
+            RTreePolicyType rtreePolicyType, ILinearizeComparatorFactory linearizeCmpFactory)
+            throws HyracksDataException {
         try {
-            return LSMRTreeUtils.createLSMTree(memBufferCache, memFreePageManager, ioManager, file, diskBufferCache,
-                    diskFileMapProvider, typeTraits, rtreeCmpFactories, btreeCmpFactories, valueProviderFactories,
-                    rtreePolicyType, bloomFilterFalsePositiveRate, mergePolicy, opTrackerFactory, ioScheduler,
-                    ioOpCallbackProvider, linearizeCmpFactory,
-                    opDesc.getFileSplitProvider().getFileSplits()[partition].getIODeviceId());
+            return LSMRTreeUtils.createLSMTree(virtualBufferCache, file, diskBufferCache, diskFileMapProvider,
+                    typeTraits, rtreeCmpFactories, btreeCmpFactories, valueProviderFactories, rtreePolicyType,
+                    bloomFilterFalsePositiveRate, mergePolicy, opTracker, ioScheduler, ioOpCallbackProvider,
+                    linearizeCmpFactory);
         } catch (TreeIndexException e) {
             throw new HyracksDataException(e);
         }
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/dataflow/LSMRTreeDataflowHelperFactory.java b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/dataflow/LSMRTreeDataflowHelperFactory.java
index 0778e15..5d35bc5 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/dataflow/LSMRTreeDataflowHelperFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/dataflow/LSMRTreeDataflowHelperFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -24,7 +24,8 @@
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationSchedulerProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicyProvider;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerProvider;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCacheProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.dataflow.AbstractLSMIndexDataflowHelperFactory;
 import edu.uci.ics.hyracks.storage.am.rtree.frames.RTreePolicyType;
 
@@ -39,12 +40,12 @@
 
     public LSMRTreeDataflowHelperFactory(IPrimitiveValueProviderFactory[] valueProviderFactories,
             RTreePolicyType rtreePolicyType, IBinaryComparatorFactory[] btreeComparatorFactories,
-            ILSMMergePolicyProvider mergePolicyProvider, ILSMOperationTrackerFactory opTrackerFactory,
-            ILSMIOOperationSchedulerProvider ioSchedulerProvider, ILSMIOOperationCallbackProvider ioOpCallbackProvider,
-            ILinearizeComparatorFactory linearizeCmpFactory, int memPageSize, int memNumPages,
+            IVirtualBufferCacheProvider virtualBufferCacheProvider, ILSMMergePolicyProvider mergePolicyProvider,
+            ILSMOperationTrackerProvider opTrackerFactory, ILSMIOOperationSchedulerProvider ioSchedulerProvider,
+            ILSMIOOperationCallbackProvider ioOpCallbackProvider, ILinearizeComparatorFactory linearizeCmpFactory,
             double bloomFilterFalsePositiveRate) {
-        super(mergePolicyProvider, opTrackerFactory, ioSchedulerProvider, ioOpCallbackProvider, memPageSize,
-                memNumPages, bloomFilterFalsePositiveRate);
+        super(virtualBufferCacheProvider, mergePolicyProvider, opTrackerFactory, ioSchedulerProvider,
+                ioOpCallbackProvider, bloomFilterFalsePositiveRate);
         this.btreeComparatorFactories = btreeComparatorFactories;
         this.valueProviderFactories = valueProviderFactories;
         this.rtreePolicyType = rtreePolicyType;
@@ -54,8 +55,9 @@
     @Override
     public IndexDataflowHelper createIndexDataflowHelper(IIndexOperatorDescriptor opDesc, IHyracksTaskContext ctx,
             int partition) {
-        return new LSMRTreeDataflowHelper(opDesc, ctx, partition, memPageSize, memNumPages,
-                bloomFilterFalsePositiveRate, btreeComparatorFactories, valueProviderFactories, rtreePolicyType,
+        return new LSMRTreeDataflowHelper(opDesc, ctx, partition,
+                virtualBufferCacheProvider.getVirtualBufferCache(ctx), bloomFilterFalsePositiveRate,
+                btreeComparatorFactories, valueProviderFactories, rtreePolicyType,
                 mergePolicyProvider.getMergePolicy(ctx), opTrackerFactory, ioSchedulerProvider.getIOScheduler(ctx),
                 ioOpCallbackProvider, linearizeCmpFactory);
     }
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/dataflow/LSMRTreeWithAntiMatterTuplesDataflowHelper.java b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/dataflow/LSMRTreeWithAntiMatterTuplesDataflowHelper.java
index d4fac8f..ea1b1e2 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/dataflow/LSMRTreeWithAntiMatterTuplesDataflowHelper.java
+++ b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/dataflow/LSMRTreeWithAntiMatterTuplesDataflowHelper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -21,17 +21,16 @@
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.api.io.FileReference;
-import edu.uci.ics.hyracks.api.io.IIOManager;
-import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
 import edu.uci.ics.hyracks.storage.am.common.api.IPrimitiveValueProviderFactory;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndex;
 import edu.uci.ics.hyracks.storage.am.common.api.TreeIndexException;
 import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndexOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.IInMemoryBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationScheduler;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicy;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTracker;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerProvider;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.rtree.utils.LSMRTreeUtils;
 import edu.uci.ics.hyracks.storage.am.rtree.frames.RTreePolicyType;
 import edu.uci.ics.hyracks.storage.common.buffercache.IBufferCache;
@@ -39,37 +38,26 @@
 
 public class LSMRTreeWithAntiMatterTuplesDataflowHelper extends AbstractLSMRTreeDataflowHelper {
     public LSMRTreeWithAntiMatterTuplesDataflowHelper(IIndexOperatorDescriptor opDesc, IHyracksTaskContext ctx,
-            int partition, IBinaryComparatorFactory[] btreeComparatorFactories,
+            int partition, IVirtualBufferCache virtualBufferCache, IBinaryComparatorFactory[] btreeComparatorFactories,
             IPrimitiveValueProviderFactory[] valueProviderFactories, RTreePolicyType rtreePolicyType,
-            ILSMMergePolicy mergePolicy, ILSMOperationTrackerFactory opTrackerFactory,
+            ILSMMergePolicy mergePolicy, ILSMOperationTrackerProvider opTrackerFactory,
             ILSMIOOperationScheduler ioScheduler, ILSMIOOperationCallbackProvider ioOpCallbackProvider,
             ILinearizeComparatorFactory linearizeCmpFactory) {
-        super(opDesc, ctx, partition, btreeComparatorFactories, valueProviderFactories, rtreePolicyType, mergePolicy,
-                opTrackerFactory, ioScheduler, ioOpCallbackProvider, linearizeCmpFactory);
-    }
-
-    public LSMRTreeWithAntiMatterTuplesDataflowHelper(IIndexOperatorDescriptor opDesc, IHyracksTaskContext ctx,
-            int partition, int memPageSize, int memNumPages, IBinaryComparatorFactory[] btreeComparatorFactories,
-            IPrimitiveValueProviderFactory[] valueProviderFactories, RTreePolicyType rtreePolicyType,
-            ILSMMergePolicy mergePolicy, ILSMOperationTrackerFactory opTrackerFactory,
-            ILSMIOOperationScheduler ioScheduler, ILSMIOOperationCallbackProvider ioOpCallbackProvider,
-            ILinearizeComparatorFactory linearizeCmpFactory) {
-        super(opDesc, ctx, partition, memPageSize, memNumPages, 0, btreeComparatorFactories, valueProviderFactories,
+        super(opDesc, ctx, partition, virtualBufferCache, btreeComparatorFactories, valueProviderFactories,
                 rtreePolicyType, mergePolicy, opTrackerFactory, ioScheduler, ioOpCallbackProvider, linearizeCmpFactory);
     }
 
     @Override
-    protected ITreeIndex createLSMTree(IInMemoryBufferCache memBufferCache,
-            IInMemoryFreePageManager memFreePageManager, IIOManager ioManager, FileReference file,
+    protected ITreeIndex createLSMTree(IVirtualBufferCache virtualBufferCache, FileReference file,
             IBufferCache diskBufferCache, IFileMapProvider diskFileMapProvider, ITypeTraits[] typeTraits,
             IBinaryComparatorFactory[] rtreeCmpFactories, IBinaryComparatorFactory[] btreeCmpFactories,
-            IPrimitiveValueProviderFactory[] valueProviderFactories, RTreePolicyType rtreePolicyType,
-            ILinearizeComparatorFactory linearizeCmpFactory, int startIODeviceIndex) throws HyracksDataException {
+            ILSMOperationTracker opTracker, IPrimitiveValueProviderFactory[] valueProviderFactories,
+            RTreePolicyType rtreePolicyType, ILinearizeComparatorFactory linearizeCmpFactory)
+            throws HyracksDataException {
         try {
-            return LSMRTreeUtils.createLSMTreeWithAntiMatterTuples(memBufferCache, memFreePageManager, ioManager, file,
-                    diskBufferCache, diskFileMapProvider, typeTraits, rtreeCmpFactories, btreeCmpFactories,
-                    valueProviderFactories, rtreePolicyType, mergePolicy, opTrackerFactory, ioScheduler,
-                    ioOpCallbackProvider, linearizeCmpFactory, startIODeviceIndex);
+            return LSMRTreeUtils.createLSMTreeWithAntiMatterTuples(virtualBufferCache, file, diskBufferCache,
+                    diskFileMapProvider, typeTraits, rtreeCmpFactories, btreeCmpFactories, valueProviderFactories,
+                    rtreePolicyType, mergePolicy, opTracker, ioScheduler, ioOpCallbackProvider, linearizeCmpFactory);
         } catch (TreeIndexException e) {
             throw new HyracksDataException(e);
         }
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/dataflow/LSMRTreeWithAntiMatterTuplesDataflowHelperFactory.java b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/dataflow/LSMRTreeWithAntiMatterTuplesDataflowHelperFactory.java
index b27e84f..5fca08f 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/dataflow/LSMRTreeWithAntiMatterTuplesDataflowHelperFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/dataflow/LSMRTreeWithAntiMatterTuplesDataflowHelperFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -25,27 +25,30 @@
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationSchedulerProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicyProvider;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerProvider;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCacheProvider;
 import edu.uci.ics.hyracks.storage.am.rtree.frames.RTreePolicyType;
 
 public class LSMRTreeWithAntiMatterTuplesDataflowHelperFactory implements IIndexDataflowHelperFactory {
 
     private static final long serialVersionUID = 1L;
 
+    private final IVirtualBufferCacheProvider virtualBufferCacheProvider;
     private final IBinaryComparatorFactory[] btreeComparatorFactories;
     private final IPrimitiveValueProviderFactory[] valueProviderFactories;
     private final RTreePolicyType rtreePolicyType;
     private final ILSMMergePolicyProvider mergePolicyProvider;
-    private final ILSMOperationTrackerFactory opTrackerProvider;
+    private final ILSMOperationTrackerProvider opTrackerProvider;
     private final ILSMIOOperationSchedulerProvider ioSchedulerProvider;
     private final ILSMIOOperationCallbackProvider ioOpCallbackProvider;
     private final ILinearizeComparatorFactory linearizeCmpFactory;
 
     public LSMRTreeWithAntiMatterTuplesDataflowHelperFactory(IPrimitiveValueProviderFactory[] valueProviderFactories,
             RTreePolicyType rtreePolicyType, IBinaryComparatorFactory[] btreeComparatorFactories,
-            ILSMMergePolicyProvider mergePolicyProvider, ILSMOperationTrackerFactory opTrackerProvider,
-            ILSMIOOperationSchedulerProvider ioSchedulerProvider, ILSMIOOperationCallbackProvider ioOpCallbackProvider,
-            ILinearizeComparatorFactory linearizeCmpFactory) {
+            IVirtualBufferCacheProvider virtualBufferCacheProvider, ILSMMergePolicyProvider mergePolicyProvider,
+            ILSMOperationTrackerProvider opTrackerProvider, ILSMIOOperationSchedulerProvider ioSchedulerProvider,
+            ILSMIOOperationCallbackProvider ioOpCallbackProvider, ILinearizeComparatorFactory linearizeCmpFactory) {
+        this.virtualBufferCacheProvider = virtualBufferCacheProvider;
         this.btreeComparatorFactories = btreeComparatorFactories;
         this.valueProviderFactories = valueProviderFactories;
         this.rtreePolicyType = rtreePolicyType;
@@ -59,7 +62,8 @@
     @Override
     public IndexDataflowHelper createIndexDataflowHelper(IIndexOperatorDescriptor opDesc, IHyracksTaskContext ctx,
             int partition) {
-        return new LSMRTreeWithAntiMatterTuplesDataflowHelper(opDesc, ctx, partition, btreeComparatorFactories,
+        return new LSMRTreeWithAntiMatterTuplesDataflowHelper(opDesc, ctx, partition,
+                virtualBufferCacheProvider.getVirtualBufferCache(ctx), btreeComparatorFactories,
                 valueProviderFactories, rtreePolicyType, mergePolicyProvider.getMergePolicy(ctx), opTrackerProvider,
                 ioSchedulerProvider.getIOScheduler(ctx), ioOpCallbackProvider, linearizeCmpFactory);
     }
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/AbstractLSMRTree.java b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/AbstractLSMRTree.java
index f62fab1..e3e690b 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/AbstractLSMRTree.java
+++ b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/AbstractLSMRTree.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -29,16 +29,15 @@
 import edu.uci.ics.hyracks.storage.am.btree.impls.BTree.BTreeAccessor;
 import edu.uci.ics.hyracks.storage.am.btree.impls.RangePredicate;
 import edu.uci.ics.hyracks.storage.am.common.api.IFreePageManager;
-import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndexOperationContext;
 import edu.uci.ics.hyracks.storage.am.common.api.IModificationOperationCallback;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndex;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexCursor;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexFrameFactory;
+import edu.uci.ics.hyracks.storage.am.common.api.IVirtualFreePageManager;
 import edu.uci.ics.hyracks.storage.am.common.api.IndexException;
 import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallback;
 import edu.uci.ics.hyracks.storage.am.common.ophelpers.IndexOperation;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.IInMemoryBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMComponent;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMComponentFactory;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackProvider;
@@ -47,8 +46,9 @@
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndexFileManager;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndexOperationContext;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicy;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
-import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.InMemoryBufferCache;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTracker;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
+import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.VirtualFreePageManager;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.AbstractLSMIndex;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.BlockingIOOperationCallbackWrapper;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.LSMComponentFileReferences;
@@ -57,6 +57,7 @@
 import edu.uci.ics.hyracks.storage.am.rtree.api.IRTreeLeafFrame;
 import edu.uci.ics.hyracks.storage.am.rtree.impls.RTree;
 import edu.uci.ics.hyracks.storage.am.rtree.impls.RTree.RTreeAccessor;
+import edu.uci.ics.hyracks.storage.common.buffercache.IBufferCache;
 import edu.uci.ics.hyracks.storage.common.file.IFileMapProvider;
 
 public abstract class AbstractLSMRTree extends AbstractLSMIndex implements ITreeIndex {
@@ -67,7 +68,8 @@
 
     // In-memory components.
     protected final LSMRTreeMutableComponent mutableComponent;
-    protected final IInMemoryBufferCache memBufferCache;
+    protected final IVirtualBufferCache virtualBufferCache;
+    protected final IVirtualFreePageManager virtualFreePageManager;
 
     protected TreeTupleSorter rTreeTupleSorter;
 
@@ -84,26 +86,27 @@
     protected final ITreeIndexFrameFactory rtreeLeafFrameFactory;
     protected final ITreeIndexFrameFactory btreeLeafFrameFactory;
 
-    public AbstractLSMRTree(IInMemoryBufferCache memBufferCache, IInMemoryFreePageManager memFreePageManager,
-            ITreeIndexFrameFactory rtreeInteriorFrameFactory, ITreeIndexFrameFactory rtreeLeafFrameFactory,
-            ITreeIndexFrameFactory btreeInteriorFrameFactory, ITreeIndexFrameFactory btreeLeafFrameFactory,
-            ILSMIndexFileManager fileManager, TreeIndexFactory<RTree> diskRTreeFactory,
-            ILSMComponentFactory componentFactory, IFileMapProvider diskFileMapProvider, int fieldCount,
-            IBinaryComparatorFactory[] rtreeCmpFactories, IBinaryComparatorFactory[] btreeCmpFactories,
-            ILinearizeComparatorFactory linearizer, int[] comparatorFields, IBinaryComparatorFactory[] linearizerArray,
-            double bloomFilterFalsePositiveRate, ILSMMergePolicy mergePolicy,
-            ILSMOperationTrackerFactory opTrackerFactory, ILSMIOOperationScheduler ioScheduler,
+    public AbstractLSMRTree(IVirtualBufferCache virtualBufferCache, ITreeIndexFrameFactory rtreeInteriorFrameFactory,
+            ITreeIndexFrameFactory rtreeLeafFrameFactory, ITreeIndexFrameFactory btreeInteriorFrameFactory,
+            ITreeIndexFrameFactory btreeLeafFrameFactory, ILSMIndexFileManager fileManager,
+            TreeIndexFactory<RTree> diskRTreeFactory, ILSMComponentFactory componentFactory,
+            IFileMapProvider diskFileMapProvider, int fieldCount, IBinaryComparatorFactory[] rtreeCmpFactories,
+            IBinaryComparatorFactory[] btreeCmpFactories, ILinearizeComparatorFactory linearizer,
+            int[] comparatorFields, IBinaryComparatorFactory[] linearizerArray, double bloomFilterFalsePositiveRate,
+            ILSMMergePolicy mergePolicy, ILSMOperationTracker opTracker, ILSMIOOperationScheduler ioScheduler,
             ILSMIOOperationCallbackProvider ioOpCallbackProvider) {
-        super(memFreePageManager, diskRTreeFactory.getBufferCache(), fileManager, diskFileMapProvider,
-                bloomFilterFalsePositiveRate, mergePolicy, opTrackerFactory, ioScheduler, ioOpCallbackProvider);
-        RTree memRTree = new RTree(memBufferCache, ((InMemoryBufferCache) memBufferCache).getFileMapProvider(),
-                memFreePageManager, rtreeInteriorFrameFactory, rtreeLeafFrameFactory, rtreeCmpFactories, fieldCount,
-                new FileReference(new File("memrtree")));
-        BTree memBTree = new BTree(memBufferCache, ((InMemoryBufferCache) memBufferCache).getFileMapProvider(),
-                memFreePageManager, btreeInteriorFrameFactory, btreeLeafFrameFactory, btreeCmpFactories, fieldCount,
-                new FileReference(new File("membtree")));
-        mutableComponent = new LSMRTreeMutableComponent(memRTree, memBTree, memFreePageManager);
-        this.memBufferCache = memBufferCache;
+        super(virtualBufferCache, diskRTreeFactory.getBufferCache(), fileManager, diskFileMapProvider,
+                bloomFilterFalsePositiveRate, mergePolicy, opTracker, ioScheduler, ioOpCallbackProvider);
+        virtualFreePageManager = new VirtualFreePageManager(virtualBufferCache.getNumPages());
+        RTree memRTree = new RTree(virtualBufferCache, ((IVirtualBufferCache) virtualBufferCache).getFileMapProvider(),
+                virtualFreePageManager, rtreeInteriorFrameFactory, rtreeLeafFrameFactory, rtreeCmpFactories,
+                fieldCount, new FileReference(new File(fileManager.getBaseDir() + "_virtual_r")));
+        BTree memBTree = new BTree(virtualBufferCache, ((IVirtualBufferCache) virtualBufferCache).getFileMapProvider(),
+                new VirtualFreePageManager(virtualBufferCache.getNumPages()), btreeInteriorFrameFactory,
+                btreeLeafFrameFactory, btreeCmpFactories, fieldCount, new FileReference(new File(
+                        fileManager.getBaseDir() + "_virtual_b")));
+        mutableComponent = new LSMRTreeMutableComponent(memRTree, memBTree, virtualBufferCache);
+        this.virtualBufferCache = virtualBufferCache;
         this.rtreeInteriorFrameFactory = rtreeInteriorFrameFactory;
         this.rtreeLeafFrameFactory = rtreeLeafFrameFactory;
         this.btreeInteriorFrameFactory = btreeInteriorFrameFactory;
@@ -131,10 +134,10 @@
     @Override
     public synchronized void activate() throws HyracksDataException {
         if (isActivated) {
-            return;
+            throw new HyracksDataException("Failed to activate the index since it is already activated.");
         }
 
-        ((InMemoryBufferCache) mutableComponent.getRTree().getBufferCache()).open();
+        ((IVirtualBufferCache) mutableComponent.getRTree().getBufferCache()).open();
         mutableComponent.getRTree().create();
         mutableComponent.getBTree().create();
         mutableComponent.getRTree().activate();
@@ -144,7 +147,7 @@
     @Override
     public synchronized void deactivate(boolean flushOnExit) throws HyracksDataException {
         if (!isActivated) {
-            return;
+            throw new HyracksDataException("Failed to deactivate the index since it is already deactivated.");
         }
 
         if (flushOnExit) {
@@ -164,7 +167,7 @@
         mutableComponent.getBTree().deactivate();
         mutableComponent.getRTree().destroy();
         mutableComponent.getBTree().destroy();
-        ((InMemoryBufferCache) mutableComponent.getRTree().getBufferCache()).close();
+        ((IVirtualBufferCache) mutableComponent.getRTree().getBufferCache()).close();
     }
 
     @Override
@@ -172,9 +175,6 @@
         if (isActivated) {
             throw new HyracksDataException("Failed to destroy the index since it is activated.");
         }
-
-        mutableComponent.getRTree().deactivate();
-        mutableComponent.getBTree().deactivate();
     }
 
     @Override
@@ -185,6 +185,7 @@
 
         mutableComponent.getRTree().clear();
         mutableComponent.getBTree().clear();
+        mutableComponent.reset();
     }
 
     @Override
@@ -334,9 +335,9 @@
                 NoOpOperationCallback.INSTANCE, NoOpOperationCallback.INSTANCE);
 
         return new LSMRTreeOpContext(rtreeAccessor, (IRTreeLeafFrame) rtreeLeafFrameFactory.createFrame(),
-                (IRTreeInteriorFrame) rtreeInteriorFrameFactory.createFrame(), memFreePageManager
+                (IRTreeInteriorFrame) rtreeInteriorFrameFactory.createFrame(), virtualFreePageManager
                         .getMetaDataFrameFactory().createFrame(), 4, btreeAccessor, btreeLeafFrameFactory,
-                btreeInteriorFrameFactory, memFreePageManager.getMetaDataFrameFactory().createFrame(),
+                btreeInteriorFrameFactory, virtualFreePageManager.getMetaDataFrameFactory().createFrame(),
                 rtreeCmpFactories, btreeCmpFactories, modCallback, NoOpOperationCallback.INSTANCE);
     }
 
@@ -346,11 +347,7 @@
     }
 
     public boolean isEmptyIndex() throws HyracksDataException {
-        return componentsRef.get().isEmpty()
-                && mutableComponent.getBTree().isEmptyTree(
-                        mutableComponent.getBTree().getInteriorFrameFactory().createFrame())
-                && mutableComponent.getRTree().isEmptyTree(
-                        mutableComponent.getRTree().getInteriorFrameFactory().createFrame());
+        return componentsRef.get().isEmpty() && !mutableComponent.isModified();
     }
 
     @Override
@@ -360,8 +357,8 @@
 
     @Override
     public long getMemoryAllocationSize() {
-        InMemoryBufferCache memBufferCache = (InMemoryBufferCache) mutableComponent.getRTree().getBufferCache();
-        return memBufferCache.getNumPages() * memBufferCache.getPageSize();
+        IBufferCache virtualBufferCache = mutableComponent.getRTree().getBufferCache();
+        return virtualBufferCache.getNumPages() * virtualBufferCache.getPageSize();
     }
 
     @Override
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTree.java b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTree.java
index 367b387..0b71373 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTree.java
+++ b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTree.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -30,7 +30,6 @@
 import edu.uci.ics.hyracks.storage.am.btree.impls.BTree;
 import edu.uci.ics.hyracks.storage.am.btree.impls.BTree.BTreeAccessor;
 import edu.uci.ics.hyracks.storage.am.btree.impls.RangePredicate;
-import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndexBulkLoader;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndexCursor;
 import edu.uci.ics.hyracks.storage.am.common.api.IModificationOperationCallback;
@@ -44,7 +43,6 @@
 import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallback;
 import edu.uci.ics.hyracks.storage.am.common.ophelpers.IndexOperation;
 import edu.uci.ics.hyracks.storage.am.common.ophelpers.MultiComparator;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.IInMemoryBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMComponent;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMHarness;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperation;
@@ -55,7 +53,8 @@
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndexFileManager;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndexOperationContext;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicy;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTracker;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.LSMComponentFileReferences;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.LSMTreeIndexAccessor;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.TreeIndexFactory;
@@ -67,22 +66,21 @@
 
 public class LSMRTree extends AbstractLSMRTree {
 
-    public LSMRTree(IInMemoryBufferCache memBufferCache, IInMemoryFreePageManager memFreePageManager,
-            ITreeIndexFrameFactory rtreeInteriorFrameFactory, ITreeIndexFrameFactory rtreeLeafFrameFactory,
-            ITreeIndexFrameFactory btreeInteriorFrameFactory, ITreeIndexFrameFactory btreeLeafFrameFactory,
-            ILSMIndexFileManager fileNameManager, TreeIndexFactory<RTree> diskRTreeFactory,
-            TreeIndexFactory<BTree> diskBTreeFactory, BloomFilterFactory bloomFilterFactory,
-            double bloomFilterFalsePositiveRate, IFileMapProvider diskFileMapProvider, int fieldCount,
-            IBinaryComparatorFactory[] rtreeCmpFactories, IBinaryComparatorFactory[] btreeCmpFactories,
-            ILinearizeComparatorFactory linearizer, int[] comparatorFields, IBinaryComparatorFactory[] linearizerArray,
-            ILSMMergePolicy mergePolicy, ILSMOperationTrackerFactory opTrackerFactory,
-            ILSMIOOperationScheduler ioScheduler, ILSMIOOperationCallbackProvider ioOpCallbackProvider) {
-        super(memBufferCache, memFreePageManager, rtreeInteriorFrameFactory, rtreeLeafFrameFactory,
-                btreeInteriorFrameFactory, btreeLeafFrameFactory, fileNameManager, diskRTreeFactory,
-                new LSMRTreeComponentFactory(diskRTreeFactory, diskBTreeFactory, bloomFilterFactory),
-                diskFileMapProvider, fieldCount, rtreeCmpFactories, btreeCmpFactories, linearizer, comparatorFields,
-                linearizerArray, bloomFilterFalsePositiveRate, mergePolicy, opTrackerFactory, ioScheduler,
-                ioOpCallbackProvider);
+    public LSMRTree(IVirtualBufferCache virtualBufferCache, ITreeIndexFrameFactory rtreeInteriorFrameFactory,
+            ITreeIndexFrameFactory rtreeLeafFrameFactory, ITreeIndexFrameFactory btreeInteriorFrameFactory,
+            ITreeIndexFrameFactory btreeLeafFrameFactory, ILSMIndexFileManager fileNameManager,
+            TreeIndexFactory<RTree> diskRTreeFactory, TreeIndexFactory<BTree> diskBTreeFactory,
+            BloomFilterFactory bloomFilterFactory, double bloomFilterFalsePositiveRate,
+            IFileMapProvider diskFileMapProvider, int fieldCount, IBinaryComparatorFactory[] rtreeCmpFactories,
+            IBinaryComparatorFactory[] btreeCmpFactories, ILinearizeComparatorFactory linearizer,
+            int[] comparatorFields, IBinaryComparatorFactory[] linearizerArray, ILSMMergePolicy mergePolicy,
+            ILSMOperationTracker opTracker, ILSMIOOperationScheduler ioScheduler,
+            ILSMIOOperationCallbackProvider ioOpCallbackProvider) {
+        super(virtualBufferCache, rtreeInteriorFrameFactory, rtreeLeafFrameFactory, btreeInteriorFrameFactory,
+                btreeLeafFrameFactory, fileNameManager, diskRTreeFactory, new LSMRTreeComponentFactory(
+                        diskRTreeFactory, diskBTreeFactory, bloomFilterFactory), diskFileMapProvider, fieldCount,
+                rtreeCmpFactories, btreeCmpFactories, linearizer, comparatorFields, linearizerArray,
+                bloomFilterFalsePositiveRate, mergePolicy, opTracker, ioScheduler, ioOpCallbackProvider);
     }
 
     /**
@@ -246,13 +244,9 @@
 
         IBinaryComparatorFactory[] linearizerArray = { linearizer };
 
-        if (rTreeTupleSorter == null) {
-            rTreeTupleSorter = new TreeTupleSorter(flushingComponent.getRTree().getFileId(), linearizerArray,
-                    rtreeLeafFrameFactory.createFrame(), rtreeLeafFrameFactory.createFrame(), flushingComponent
-                            .getRTree().getBufferCache(), comparatorFields);
-        } else {
-            rTreeTupleSorter.reset();
-        }
+        rTreeTupleSorter = new TreeTupleSorter(flushingComponent.getRTree().getFileId(), linearizerArray,
+                rtreeLeafFrameFactory.createFrame(), rtreeLeafFrameFactory.createFrame(), flushingComponent.getRTree()
+                        .getBufferCache(), comparatorFields);
         // BulkLoad the tuples from the in-memory tree into the new disk
         // RTree.
 
@@ -269,7 +263,7 @@
         if (!isEmpty) {
             rTreeTupleSorter.sort();
 
-            rTreeBulkloader = diskRTree.createBulkLoader(1.0f, false, 0L);
+            rTreeBulkloader = diskRTree.createBulkLoader(1.0f, false, 0L, false);
             cursor = rTreeTupleSorter;
 
             try {
@@ -311,7 +305,7 @@
             BTree diskBTree = component.getBTree();
 
             // BulkLoad the tuples from the in-memory tree into the new disk BTree.
-            IIndexBulkLoader bTreeBulkloader = diskBTree.createBulkLoader(1.0f, false, numBTreeTuples);
+            IIndexBulkLoader bTreeBulkloader = diskBTree.createBulkLoader(1.0f, false, numBTreeTuples, false);
             IIndexBulkLoader builder = component.getBloomFilter().createBuilder(numBTreeTuples,
                     bloomFilterSpec.getNumHashes(), bloomFilterSpec.getNumBucketsPerElements());
             // scan the memory BTree
@@ -362,7 +356,7 @@
 
         LSMRTreeImmutableComponent mergedComponent = createDiskComponent(componentFactory,
                 mergeOp.getRTreeMergeTarget(), mergeOp.getBTreeMergeTarget(), mergeOp.getBloomFilterMergeTarget(), true);
-        IIndexBulkLoader bulkLoader = mergedComponent.getRTree().createBulkLoader(1.0f, false, 0L);
+        IIndexBulkLoader bulkLoader = mergedComponent.getRTree().createBulkLoader(1.0f, false, 0L, false);
 
         try {
             while (cursor.hasNext()) {
@@ -406,59 +400,72 @@
     }
 
     @Override
-    public IIndexBulkLoader createBulkLoader(float fillLevel, boolean verifyInput, long numElementsHint)
-            throws TreeIndexException {
-        return new LSMRTreeBulkLoader(fillLevel, verifyInput, numElementsHint);
+    public IIndexBulkLoader createBulkLoader(float fillLevel, boolean verifyInput, long numElementsHint,
+            boolean checkIfEmptyIndex) throws TreeIndexException {
+        try {
+            return new LSMRTreeBulkLoader(fillLevel, verifyInput, numElementsHint, checkIfEmptyIndex);
+        } catch (HyracksDataException e) {
+            throw new TreeIndexException(e);
+        }
     }
 
     public class LSMRTreeBulkLoader implements IIndexBulkLoader {
         private final ILSMComponent component;
         private final IIndexBulkLoader bulkLoader;
+        private boolean cleanedUpArtifacts = false;
+        private boolean isEmptyComponent = true;
 
-        public LSMRTreeBulkLoader(float fillFactor, boolean verifyInput, long numElementsHint)
-                throws TreeIndexException {
+        public LSMRTreeBulkLoader(float fillFactor, boolean verifyInput, long numElementsHint, boolean checkIfEmptyIndex)
+                throws TreeIndexException, HyracksDataException {
+            if (checkIfEmptyIndex && !isEmptyIndex()) {
+                throw new TreeIndexException("Cannot load an index that is not empty");
+            }
             // Note that by using a flush target file name, we state that the
             // new bulk loaded tree is "newer" than any other merged tree.
             try {
                 component = createBulkLoadTarget();
-            } catch (HyracksDataException e) {
-                throw new TreeIndexException(e);
-            } catch (IndexException e) {
+            } catch (HyracksDataException | IndexException e) {
                 throw new TreeIndexException(e);
             }
             bulkLoader = ((LSMRTreeImmutableComponent) component).getRTree().createBulkLoader(fillFactor, verifyInput,
-                    numElementsHint);
+                    numElementsHint, false);
         }
 
         @Override
         public void add(ITupleReference tuple) throws HyracksDataException, IndexException {
             try {
                 bulkLoader.add(tuple);
-            } catch (IndexException e) {
-                handleException();
+            } catch (IndexException | HyracksDataException | RuntimeException e) {
+                cleanupArtifacts();
                 throw e;
-            } catch (HyracksDataException e) {
-                handleException();
-                throw e;
-            } catch (RuntimeException e) {
-                handleException();
-                throw e;
+            }
+            if (isEmptyComponent) {
+                isEmptyComponent = false;
             }
         }
 
         @Override
         public void end() throws HyracksDataException, IndexException {
-            bulkLoader.end();
-            lsmHarness.addBulkLoadedComponent(component);
+            if (!cleanedUpArtifacts) {
+                bulkLoader.end();
+                if (isEmptyComponent) {
+                    cleanupArtifacts();
+                } else {
+                    lsmHarness.addBulkLoadedComponent(component);
+                }
+            }
         }
 
-        protected void handleException() throws HyracksDataException {
-            ((LSMRTreeImmutableComponent) component).getRTree().deactivate();
-            ((LSMRTreeImmutableComponent) component).getRTree().destroy();
-            ((LSMRTreeImmutableComponent) component).getBTree().deactivate();
-            ((LSMRTreeImmutableComponent) component).getBTree().destroy();
-            ((LSMRTreeImmutableComponent) component).getBloomFilter().deactivate();
-            ((LSMRTreeImmutableComponent) component).getBloomFilter().destroy();
+        protected void cleanupArtifacts() throws HyracksDataException {
+            if (!cleanedUpArtifacts) {
+                cleanedUpArtifacts = true;
+                ((LSMRTreeImmutableComponent) component).getRTree().deactivate();
+                ((LSMRTreeImmutableComponent) component).getRTree().destroy();
+                ((LSMRTreeImmutableComponent) component).getBTree().deactivate();
+                ((LSMRTreeImmutableComponent) component).getBTree().destroy();
+                ((LSMRTreeImmutableComponent) component).getBloomFilter().deactivate();
+                ((LSMRTreeImmutableComponent) component).getBloomFilter().destroy();
+            }
         }
     }
 
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeAbstractCursor.java b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeAbstractCursor.java
index 5a72f29..0cd578a 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeAbstractCursor.java
+++ b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeAbstractCursor.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.rtree.impls;
 
 import java.util.List;
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeComponentFactory.java b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeComponentFactory.java
index 56e3d28..8f618da 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeComponentFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeComponentFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeCursorInitialState.java b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeCursorInitialState.java
index 590d5d8..21230b0 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeCursorInitialState.java
+++ b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeCursorInitialState.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeFileManager.java b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeFileManager.java
index fd36920..9502d5e 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeFileManager.java
+++ b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeFileManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -26,7 +26,6 @@
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.api.io.FileReference;
-import edu.uci.ics.hyracks.api.io.IIOManager;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndex;
 import edu.uci.ics.hyracks.storage.am.common.api.IndexException;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.AbstractLSMIndexFileManager;
@@ -53,10 +52,9 @@
         }
     };
 
-    public LSMRTreeFileManager(IIOManager ioManager, IFileMapProvider fileMapProvider, FileReference file,
-            TreeIndexFactory<? extends ITreeIndex> rtreeFactory, TreeIndexFactory<? extends ITreeIndex> btreeFactory,
-            int ioDeviceId) {
-        super(ioManager, fileMapProvider, file, null, ioDeviceId);
+    public LSMRTreeFileManager(IFileMapProvider fileMapProvider, FileReference file,
+            TreeIndexFactory<? extends ITreeIndex> rtreeFactory, TreeIndexFactory<? extends ITreeIndex> btreeFactory) {
+        super(fileMapProvider, file, null);
         this.rtreeFactory = rtreeFactory;
         this.btreeFactory = btreeFactory;
     }
@@ -92,15 +90,15 @@
         ArrayList<ComparableFileName> allBTreeFiles = new ArrayList<ComparableFileName>();
         ArrayList<ComparableFileName> allBloomFilterFiles = new ArrayList<ComparableFileName>();
 
-        // Gather files from the IODeviceHandle.
-        cleanupAndGetValidFilesInternal(dev, btreeFilter, btreeFactory, allBTreeFiles);
+        // Gather files.
+        cleanupAndGetValidFilesInternal(btreeFilter, btreeFactory, allBTreeFiles);
         HashSet<String> btreeFilesSet = new HashSet<String>();
         for (ComparableFileName cmpFileName : allBTreeFiles) {
             int index = cmpFileName.fileName.lastIndexOf(SPLIT_STRING);
             btreeFilesSet.add(cmpFileName.fileName.substring(0, index));
         }
-        validateFiles(dev, btreeFilesSet, allRTreeFiles, rtreeFilter, rtreeFactory);
-        validateFiles(dev, btreeFilesSet, allBloomFilterFiles, bloomFilterFilter, null);
+        validateFiles(btreeFilesSet, allRTreeFiles, rtreeFilter, rtreeFactory);
+        validateFiles(btreeFilesSet, allBloomFilterFiles, bloomFilterFilter, null);
 
         // Sanity check.
         if (allRTreeFiles.size() != allBTreeFiles.size() || allBTreeFiles.size() != allBloomFilterFiles.size()) {
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeFlushOperation.java b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeFlushOperation.java
index 7b7f2bc..68098bb 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeFlushOperation.java
+++ b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeFlushOperation.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.rtree.impls;
 
 import java.util.Collections;
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeImmutableComponent.java b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeImmutableComponent.java
index 8d20c14..cb290c7 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeImmutableComponent.java
+++ b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeImmutableComponent.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.rtree.impls;
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeMergeOperation.java b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeMergeOperation.java
index 0e05a93..ef67a2b 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeMergeOperation.java
+++ b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeMergeOperation.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.rtree.impls;
 
 import java.util.HashSet;
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeMutableComponent.java b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeMutableComponent.java
index 2586d58..7d572ad 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeMutableComponent.java
+++ b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeMutableComponent.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -17,7 +17,7 @@
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.storage.am.btree.impls.BTree;
-import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.AbstractMutableLSMComponent;
 import edu.uci.ics.hyracks.storage.am.rtree.impls.RTree;
 
@@ -25,12 +25,12 @@
 
     private final RTree rtree;
     private final BTree btree;
-    private final IInMemoryFreePageManager mfpm;
+    private final IVirtualBufferCache vbc;
 
-    public LSMRTreeMutableComponent(RTree rtree, BTree btree, IInMemoryFreePageManager mfpm) {
+    public LSMRTreeMutableComponent(RTree rtree, BTree btree, IVirtualBufferCache vbc) {
         this.rtree = rtree;
         this.btree = btree;
-        this.mfpm = mfpm;
+        this.vbc = vbc;
     }
 
     public RTree getRTree() {
@@ -43,15 +43,21 @@
 
     @Override
     protected boolean isFull() {
-        return mfpm.isFull();
+        return vbc.isFull();
     }
 
     @Override
     protected void reset() throws HyracksDataException {
         super.reset();
-        rtree.clear();
+        rtree.deactivate();
+        rtree.destroy();
+        rtree.create();
+        rtree.activate();
         if (btree != null) {
-            btree.clear();
+            btree.deactivate();
+            btree.destroy();
+            btree.create();
+            btree.activate();
         }
     }
 
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeOpContext.java b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeOpContext.java
index b8805d1..8607a05 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeOpContext.java
+++ b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeOpContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeSearchCursor.java b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeSearchCursor.java
index 966ed8d..9b0869c 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeSearchCursor.java
+++ b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeSearchCursor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeSortedCursor.java b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeSortedCursor.java
index 02a1876..31dfe27 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeSortedCursor.java
+++ b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeSortedCursor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeWithAntiMatterTuples.java b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeWithAntiMatterTuples.java
index a3a8ca2..0be497a 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeWithAntiMatterTuples.java
+++ b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeWithAntiMatterTuples.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -24,7 +24,6 @@
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
 import edu.uci.ics.hyracks.storage.am.btree.impls.BTreeRangeSearchCursor;
 import edu.uci.ics.hyracks.storage.am.btree.impls.RangePredicate;
-import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndexBulkLoader;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndexCursor;
 import edu.uci.ics.hyracks.storage.am.common.api.IModificationOperationCallback;
@@ -38,7 +37,6 @@
 import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallback;
 import edu.uci.ics.hyracks.storage.am.common.ophelpers.IndexOperation;
 import edu.uci.ics.hyracks.storage.am.common.ophelpers.MultiComparator;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.IInMemoryBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMComponent;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMComponentFactory;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMHarness;
@@ -50,7 +48,8 @@
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndexFileManager;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndexOperationContext;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicy;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTracker;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.LSMComponentFileReferences;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.LSMTreeIndexAccessor;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.TreeIndexFactory;
@@ -68,21 +67,20 @@
     // because it should have a different tuple writer in it's leaf frames.
     private final ILSMComponentFactory bulkLoaComponentFactory;
 
-    public LSMRTreeWithAntiMatterTuples(IInMemoryBufferCache memBufferCache,
-            IInMemoryFreePageManager memFreePageManager, ITreeIndexFrameFactory rtreeInteriorFrameFactory,
-            ITreeIndexFrameFactory rtreeLeafFrameFactory, ITreeIndexFrameFactory btreeInteriorFrameFactory,
-            ITreeIndexFrameFactory btreeLeafFrameFactory, ILSMIndexFileManager fileManager,
-            TreeIndexFactory<RTree> diskRTreeFactory, TreeIndexFactory<RTree> bulkLoadRTreeFactory,
-            IFileMapProvider diskFileMapProvider, int fieldCount, IBinaryComparatorFactory[] rtreeCmpFactories,
-            IBinaryComparatorFactory[] btreeCmpFactories, ILinearizeComparatorFactory linearizer,
-            int[] comparatorFields, IBinaryComparatorFactory[] linearizerArray, ILSMMergePolicy mergePolicy,
-            ILSMOperationTrackerFactory opTrackerFactory, ILSMIOOperationScheduler ioScheduler,
+    public LSMRTreeWithAntiMatterTuples(IVirtualBufferCache virtualBufferCache,
+            ITreeIndexFrameFactory rtreeInteriorFrameFactory, ITreeIndexFrameFactory rtreeLeafFrameFactory,
+            ITreeIndexFrameFactory btreeInteriorFrameFactory, ITreeIndexFrameFactory btreeLeafFrameFactory,
+            ILSMIndexFileManager fileManager, TreeIndexFactory<RTree> diskRTreeFactory,
+            TreeIndexFactory<RTree> bulkLoadRTreeFactory, IFileMapProvider diskFileMapProvider, int fieldCount,
+            IBinaryComparatorFactory[] rtreeCmpFactories, IBinaryComparatorFactory[] btreeCmpFactories,
+            ILinearizeComparatorFactory linearizer, int[] comparatorFields, IBinaryComparatorFactory[] linearizerArray,
+            ILSMMergePolicy mergePolicy, ILSMOperationTracker opTracker, ILSMIOOperationScheduler ioScheduler,
             ILSMIOOperationCallbackProvider ioOpCallbackProvider) {
-        super(memBufferCache, memFreePageManager, rtreeInteriorFrameFactory, rtreeLeafFrameFactory,
-                btreeInteriorFrameFactory, btreeLeafFrameFactory, fileManager, diskRTreeFactory,
-                new LSMRTreeWithAntiMatterTuplesComponentFactory(diskRTreeFactory), diskFileMapProvider, fieldCount,
-                rtreeCmpFactories, btreeCmpFactories, linearizer, comparatorFields, linearizerArray, 0, mergePolicy,
-                opTrackerFactory, ioScheduler, ioOpCallbackProvider);
+        super(virtualBufferCache, rtreeInteriorFrameFactory, rtreeLeafFrameFactory, btreeInteriorFrameFactory,
+                btreeLeafFrameFactory, fileManager, diskRTreeFactory, new LSMRTreeWithAntiMatterTuplesComponentFactory(
+                        diskRTreeFactory), diskFileMapProvider, fieldCount, rtreeCmpFactories, btreeCmpFactories,
+                linearizer, comparatorFields, linearizerArray, 0, mergePolicy, opTracker, ioScheduler,
+                ioOpCallbackProvider);
         bulkLoaComponentFactory = new LSMRTreeWithAntiMatterTuplesComponentFactory(bulkLoadRTreeFactory);
         this.bTreeTupleSorter = null;
     }
@@ -237,18 +235,13 @@
 
         // Since the LSM-RTree is used as a secondary assumption, the
         // primary key will be the last comparator in the BTree comparators
-        if (rTreeTupleSorter == null) {
-            rTreeTupleSorter = new TreeTupleSorter(flushingComponent.getRTree().getFileId(), linearizerArray,
-                    rtreeLeafFrameFactory.createFrame(), rtreeLeafFrameFactory.createFrame(), flushingComponent
-                            .getRTree().getBufferCache(), comparatorFields);
+        rTreeTupleSorter = new TreeTupleSorter(flushingComponent.getRTree().getFileId(), linearizerArray,
+                rtreeLeafFrameFactory.createFrame(), rtreeLeafFrameFactory.createFrame(), flushingComponent.getRTree()
+                        .getBufferCache(), comparatorFields);
 
-            bTreeTupleSorter = new TreeTupleSorter(flushingComponent.getBTree().getFileId(), linearizerArray,
-                    btreeLeafFrameFactory.createFrame(), btreeLeafFrameFactory.createFrame(), flushingComponent
-                            .getBTree().getBufferCache(), comparatorFields);
-        } else {
-            rTreeTupleSorter.reset();
-            bTreeTupleSorter.reset();
-        }
+        bTreeTupleSorter = new TreeTupleSorter(flushingComponent.getBTree().getFileId(), linearizerArray,
+                btreeLeafFrameFactory.createFrame(), btreeLeafFrameFactory.createFrame(), flushingComponent.getBTree()
+                        .getBufferCache(), comparatorFields);
         // BulkLoad the tuples from the in-memory tree into the new disk
         // RTree.
 
@@ -280,7 +273,7 @@
             bTreeTupleSorter.sort();
         }
 
-        IIndexBulkLoader rTreeBulkloader = diskRTree.createBulkLoader(1.0f, false, 0L);
+        IIndexBulkLoader rTreeBulkloader = diskRTree.createBulkLoader(1.0f, false, 0L, false);
         LSMRTreeWithAntiMatterTuplesFlushCursor cursor = new LSMRTreeWithAntiMatterTuplesFlushCursor(rTreeTupleSorter,
                 bTreeTupleSorter, comparatorFields, linearizerArray);
         cursor.open(null, null);
@@ -333,7 +326,7 @@
         LSMRTreeImmutableComponent component = createDiskComponent(componentFactory, mergeOp.getRTreeMergeTarget(),
                 null, null, true);
         RTree mergedRTree = component.getRTree();
-        IIndexBulkLoader bulkloader = mergedRTree.createBulkLoader(1.0f, false, 0L);
+        IIndexBulkLoader bulkloader = mergedRTree.createBulkLoader(1.0f, false, 0L, false);
         try {
             while (cursor.hasNext()) {
                 cursor.next();
@@ -370,9 +363,14 @@
     }
 
     @Override
-    public IIndexBulkLoader createBulkLoader(float fillLevel, boolean verifyInput, long numElementsHint)
-            throws TreeIndexException {
-        return new LSMRTreeWithAntiMatterTuplesBulkLoader(fillLevel, verifyInput, numElementsHint);
+    public IIndexBulkLoader createBulkLoader(float fillLevel, boolean verifyInput, long numElementsHint,
+            boolean checkIfEmptyIndex) throws TreeIndexException {
+        try {
+            return new LSMRTreeWithAntiMatterTuplesBulkLoader(fillLevel, verifyInput, numElementsHint,
+                    checkIfEmptyIndex);
+        } catch (HyracksDataException e) {
+            throw new TreeIndexException(e);
+        }
     }
 
     private ILSMComponent createBulkLoadTarget() throws HyracksDataException, IndexException {
@@ -384,47 +382,56 @@
     public class LSMRTreeWithAntiMatterTuplesBulkLoader implements IIndexBulkLoader {
         private final ILSMComponent component;
         private final IIndexBulkLoader bulkLoader;
+        private boolean cleanedUpArtifacts = false;
+        private boolean isEmptyComponent = true;
 
-        public LSMRTreeWithAntiMatterTuplesBulkLoader(float fillFactor, boolean verifyInput, long numElementsHint)
-                throws TreeIndexException {
+        public LSMRTreeWithAntiMatterTuplesBulkLoader(float fillFactor, boolean verifyInput, long numElementsHint,
+                boolean checkIfEmptyIndex) throws TreeIndexException, HyracksDataException {
+            if (checkIfEmptyIndex && !isEmptyIndex()) {
+                throw new TreeIndexException("Cannot load an index that is not empty");
+            }
             // Note that by using a flush target file name, we state that the
             // new bulk loaded tree is "newer" than any other merged tree.
             try {
                 component = createBulkLoadTarget();
-            } catch (HyracksDataException e) {
-                throw new TreeIndexException(e);
-            } catch (IndexException e) {
+            } catch (HyracksDataException | IndexException e) {
                 throw new TreeIndexException(e);
             }
             bulkLoader = ((LSMRTreeImmutableComponent) component).getRTree().createBulkLoader(fillFactor, verifyInput,
-                    numElementsHint);
+                    numElementsHint, false);
         }
 
         @Override
         public void add(ITupleReference tuple) throws HyracksDataException, IndexException {
             try {
                 bulkLoader.add(tuple);
-            } catch (IndexException e) {
-                handleException();
+            } catch (IndexException | HyracksDataException | RuntimeException e) {
+                cleanupArtifacts();
                 throw e;
-            } catch (HyracksDataException e) {
-                handleException();
-                throw e;
-            } catch (RuntimeException e) {
-                handleException();
-                throw e;
+            }
+            if (isEmptyComponent) {
+                isEmptyComponent = false;
             }
         }
 
         @Override
         public void end() throws HyracksDataException, IndexException {
-            bulkLoader.end();
-            lsmHarness.addBulkLoadedComponent(component);
+            if (!cleanedUpArtifacts) {
+                bulkLoader.end();
+                if (isEmptyComponent) {
+                    cleanupArtifacts();
+                } else {
+                    lsmHarness.addBulkLoadedComponent(component);
+                }
+            }
         }
 
-        protected void handleException() throws HyracksDataException {
-            ((LSMRTreeImmutableComponent) component).getRTree().deactivate();
-            ((LSMRTreeImmutableComponent) component).getRTree().destroy();
+        protected void cleanupArtifacts() throws HyracksDataException {
+            if (!cleanedUpArtifacts) {
+                cleanedUpArtifacts = true;
+                ((LSMRTreeImmutableComponent) component).getRTree().deactivate();
+                ((LSMRTreeImmutableComponent) component).getRTree().destroy();
+            }
         }
 
     }
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeWithAntiMatterTuplesComponentFactory.java b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeWithAntiMatterTuplesComponentFactory.java
index 0149800..39f35b7 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeWithAntiMatterTuplesComponentFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeWithAntiMatterTuplesComponentFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeWithAntiMatterTuplesFileManager.java b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeWithAntiMatterTuplesFileManager.java
index 872d152..8ef143f 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeWithAntiMatterTuplesFileManager.java
+++ b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeWithAntiMatterTuplesFileManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -16,7 +16,6 @@
 package edu.uci.ics.hyracks.storage.am.lsm.rtree.impls;
 
 import edu.uci.ics.hyracks.api.io.FileReference;
-import edu.uci.ics.hyracks.api.io.IIOManager;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndex;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.AbstractLSMIndexFileManager;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.TreeIndexFactory;
@@ -24,8 +23,8 @@
 
 public class LSMRTreeWithAntiMatterTuplesFileManager extends AbstractLSMIndexFileManager {
 
-    public LSMRTreeWithAntiMatterTuplesFileManager(IIOManager ioManager, IFileMapProvider fileMapProvider,
-            FileReference file, TreeIndexFactory<? extends ITreeIndex> rtreeFactory, int ioDeviceId) {
-        super(ioManager, fileMapProvider, file, rtreeFactory, ioDeviceId);
+    public LSMRTreeWithAntiMatterTuplesFileManager(IFileMapProvider fileMapProvider, FileReference file,
+            TreeIndexFactory<? extends ITreeIndex> rtreeFactory) {
+        super(fileMapProvider, file, rtreeFactory);
     }
 }
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeWithAntiMatterTuplesFlushCursor.java b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeWithAntiMatterTuplesFlushCursor.java
index 22e6929..0dd2281 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeWithAntiMatterTuplesFlushCursor.java
+++ b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeWithAntiMatterTuplesFlushCursor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeWithAntiMatterTuplesSearchCursor.java b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeWithAntiMatterTuplesSearchCursor.java
index 47d00c0..c937709 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeWithAntiMatterTuplesSearchCursor.java
+++ b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/LSMRTreeWithAntiMatterTuplesSearchCursor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/RTreeFactory.java b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/RTreeFactory.java
index 71e228b..d6dd920 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/RTreeFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/RTreeFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/TreeTupleSorter.java b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/TreeTupleSorter.java
index 294c2b8..03d9043 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/TreeTupleSorter.java
+++ b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/impls/TreeTupleSorter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/tuples/LSMRTreeCopyTupleWriter.java b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/tuples/LSMRTreeCopyTupleWriter.java
index 1852b51..440064a 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/tuples/LSMRTreeCopyTupleWriter.java
+++ b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/tuples/LSMRTreeCopyTupleWriter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/tuples/LSMRTreeCopyTupleWriterFactory.java b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/tuples/LSMRTreeCopyTupleWriterFactory.java
index 39a8e4d..f1f5d1c 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/tuples/LSMRTreeCopyTupleWriterFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/tuples/LSMRTreeCopyTupleWriterFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/tuples/LSMRTreeTupleReference.java b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/tuples/LSMRTreeTupleReference.java
index 70072e1..d287ff9 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/tuples/LSMRTreeTupleReference.java
+++ b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/tuples/LSMRTreeTupleReference.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/tuples/LSMRTreeTupleWriter.java b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/tuples/LSMRTreeTupleWriter.java
index 932a307..5461fee 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/tuples/LSMRTreeTupleWriter.java
+++ b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/tuples/LSMRTreeTupleWriter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/tuples/LSMRTreeTupleWriterFactory.java b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/tuples/LSMRTreeTupleWriterFactory.java
index 493d368..5f97a94 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/tuples/LSMRTreeTupleWriterFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/tuples/LSMRTreeTupleWriterFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/tuples/LSMTypeAwareTupleWriterFactory.java b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/tuples/LSMTypeAwareTupleWriterFactory.java
index 876df56..fddec43 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/tuples/LSMTypeAwareTupleWriterFactory.java
+++ b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/tuples/LSMTypeAwareTupleWriterFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.rtree.tuples;
 
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
diff --git a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/utils/LSMRTreeUtils.java b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/utils/LSMRTreeUtils.java
index d299bfe..50e5d09 100644
--- a/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/utils/LSMRTreeUtils.java
+++ b/hyracks/hyracks-storage-am-lsm-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/utils/LSMRTreeUtils.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -19,26 +19,24 @@
 import edu.uci.ics.hyracks.api.dataflow.value.ILinearizeComparatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
 import edu.uci.ics.hyracks.api.io.FileReference;
-import edu.uci.ics.hyracks.api.io.IIOManager;
 import edu.uci.ics.hyracks.data.std.primitive.DoublePointable;
 import edu.uci.ics.hyracks.data.std.primitive.IntegerPointable;
 import edu.uci.ics.hyracks.storage.am.bloomfilter.impls.BloomFilterFactory;
 import edu.uci.ics.hyracks.storage.am.btree.frames.BTreeNSMInteriorFrameFactory;
 import edu.uci.ics.hyracks.storage.am.btree.frames.BTreeNSMLeafFrameFactory;
 import edu.uci.ics.hyracks.storage.am.btree.impls.BTree;
-import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
 import edu.uci.ics.hyracks.storage.am.common.api.IPrimitiveValueProviderFactory;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexFrameFactory;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexMetaDataFrameFactory;
 import edu.uci.ics.hyracks.storage.am.common.api.TreeIndexException;
 import edu.uci.ics.hyracks.storage.am.common.frames.LIFOMetaDataFrameFactory;
 import edu.uci.ics.hyracks.storage.am.common.freepage.LinkedListFreePageManagerFactory;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.IInMemoryBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationScheduler;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndexFileManager;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicy;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTracker;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.BTreeFactory;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.TreeIndexFactory;
 import edu.uci.ics.hyracks.storage.am.lsm.rtree.impls.LSMRTree;
@@ -60,15 +58,13 @@
 import edu.uci.ics.hyracks.storage.common.file.IFileMapProvider;
 
 public class LSMRTreeUtils {
-    public static LSMRTree createLSMTree(IInMemoryBufferCache memBufferCache,
-            IInMemoryFreePageManager memFreePageManager, IIOManager ioManager, FileReference file,
+    public static LSMRTree createLSMTree(IVirtualBufferCache virtualBufferCache, FileReference file,
             IBufferCache diskBufferCache, IFileMapProvider diskFileMapProvider, ITypeTraits[] typeTraits,
             IBinaryComparatorFactory[] rtreeCmpFactories, IBinaryComparatorFactory[] btreeCmpFactories,
             IPrimitiveValueProviderFactory[] valueProviderFactories, RTreePolicyType rtreePolicyType,
-            double bloomFilterFalsePositiveRate, ILSMMergePolicy mergePolicy,
-            ILSMOperationTrackerFactory opTrackerFactory, ILSMIOOperationScheduler ioScheduler,
-            ILSMIOOperationCallbackProvider ioOpCallbackProvider, ILinearizeComparatorFactory linearizeCmpFactory,
-            int ioDeviceId) throws TreeIndexException {
+            double bloomFilterFalsePositiveRate, ILSMMergePolicy mergePolicy, ILSMOperationTracker opTracker,
+            ILSMIOOperationScheduler ioScheduler, ILSMIOOperationCallbackProvider ioOpCallbackProvider,
+            ILinearizeComparatorFactory linearizeCmpFactory) throws TreeIndexException {
         LSMTypeAwareTupleWriterFactory rtreeTupleWriterFactory = new LSMTypeAwareTupleWriterFactory(typeTraits, false);
         LSMTypeAwareTupleWriterFactory btreeTupleWriterFactory = new LSMTypeAwareTupleWriterFactory(typeTraits, true);
 
@@ -101,25 +97,24 @@
         BloomFilterFactory bloomFilterFactory = new BloomFilterFactory(diskBufferCache, diskFileMapProvider,
                 bloomFilterKeyFields);
 
-        ILSMIndexFileManager fileNameManager = new LSMRTreeFileManager(ioManager, diskFileMapProvider, file,
-                diskRTreeFactory, diskBTreeFactory, ioDeviceId);
-        LSMRTree lsmTree = new LSMRTree(memBufferCache, memFreePageManager, rtreeInteriorFrameFactory,
-                rtreeLeafFrameFactory, btreeInteriorFrameFactory, btreeLeafFrameFactory, fileNameManager,
-                diskRTreeFactory, diskBTreeFactory, bloomFilterFactory, bloomFilterFalsePositiveRate,
-                diskFileMapProvider, typeTraits.length, rtreeCmpFactories, btreeCmpFactories, linearizeCmpFactory,
-                comparatorFields, linearizerArray, mergePolicy, opTrackerFactory, ioScheduler, ioOpCallbackProvider);
+        ILSMIndexFileManager fileNameManager = new LSMRTreeFileManager(diskFileMapProvider, file, diskRTreeFactory,
+                diskBTreeFactory);
+        LSMRTree lsmTree = new LSMRTree(virtualBufferCache, rtreeInteriorFrameFactory, rtreeLeafFrameFactory,
+                btreeInteriorFrameFactory, btreeLeafFrameFactory, fileNameManager, diskRTreeFactory, diskBTreeFactory,
+                bloomFilterFactory, bloomFilterFalsePositiveRate, diskFileMapProvider, typeTraits.length,
+                rtreeCmpFactories, btreeCmpFactories, linearizeCmpFactory, comparatorFields, linearizerArray,
+                mergePolicy, opTracker, ioScheduler, ioOpCallbackProvider);
         return lsmTree;
     }
 
-    public static LSMRTreeWithAntiMatterTuples createLSMTreeWithAntiMatterTuples(IInMemoryBufferCache memBufferCache,
-            IInMemoryFreePageManager memFreePageManager, IIOManager ioManager, FileReference file,
-            IBufferCache diskBufferCache, IFileMapProvider diskFileMapProvider, ITypeTraits[] typeTraits,
+    public static LSMRTreeWithAntiMatterTuples createLSMTreeWithAntiMatterTuples(
+            IVirtualBufferCache virtualBufferCache, FileReference file, IBufferCache diskBufferCache,
+            IFileMapProvider diskFileMapProvider, ITypeTraits[] typeTraits,
             IBinaryComparatorFactory[] rtreeCmpFactories, IBinaryComparatorFactory[] btreeCmpFactories,
             IPrimitiveValueProviderFactory[] valueProviderFactories, RTreePolicyType rtreePolicyType,
-            ILSMMergePolicy mergePolicy, ILSMOperationTrackerFactory opTrackerFactory,
-            ILSMIOOperationScheduler ioScheduler, ILSMIOOperationCallbackProvider ioOpCallbackProvider,
-            ILinearizeComparatorFactory linearizerCmpFactory, int ioDeviceId) throws TreeIndexException {
-
+            ILSMMergePolicy mergePolicy, ILSMOperationTracker opTracker, ILSMIOOperationScheduler ioScheduler,
+            ILSMIOOperationCallbackProvider ioOpCallbackProvider, ILinearizeComparatorFactory linearizerCmpFactory)
+            throws TreeIndexException {
         LSMRTreeTupleWriterFactory rtreeTupleWriterFactory = new LSMRTreeTupleWriterFactory(typeTraits, false);
         LSMRTreeTupleWriterFactory btreeTupleWriterFactory = new LSMRTreeTupleWriterFactory(typeTraits, true);
 
@@ -154,13 +149,13 @@
         IBinaryComparatorFactory[] linearizerArray = { linearizerCmpFactory,
                 btreeCmpFactories[btreeCmpFactories.length - 1] };
 
-        ILSMIndexFileManager fileNameManager = new LSMRTreeWithAntiMatterTuplesFileManager(ioManager,
-                diskFileMapProvider, file, diskRTreeFactory, ioDeviceId);
-        LSMRTreeWithAntiMatterTuples lsmTree = new LSMRTreeWithAntiMatterTuples(memBufferCache, memFreePageManager,
+        ILSMIndexFileManager fileNameManager = new LSMRTreeWithAntiMatterTuplesFileManager(diskFileMapProvider, file,
+                diskRTreeFactory);
+        LSMRTreeWithAntiMatterTuples lsmTree = new LSMRTreeWithAntiMatterTuples(virtualBufferCache,
                 rtreeInteriorFrameFactory, rtreeLeafFrameFactory, btreeInteriorFrameFactory, btreeLeafFrameFactory,
                 fileNameManager, diskRTreeFactory, bulkLoadRTreeFactory, diskFileMapProvider, typeTraits.length,
                 rtreeCmpFactories, btreeCmpFactories, linearizerCmpFactory, comparatorFields, linearizerArray,
-                mergePolicy, opTrackerFactory, ioScheduler, ioOpCallbackProvider);
+                mergePolicy, opTracker, ioScheduler, ioOpCallbackProvider);
         return lsmTree;
     }
 
diff --git a/hyracks/hyracks-storage-am-rtree/pom.xml b/hyracks/hyracks-storage-am-rtree/pom.xml
index af5e922..edbf803 100644
--- a/hyracks/hyracks-storage-am-rtree/pom.xml
+++ b/hyracks/hyracks-storage-am-rtree/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-storage-am-rtree</artifactId>
@@ -6,7 +20,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -27,21 +41,21 @@
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-storage-am-common</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-dataflow-common</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-dataflow-std</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/api/IGenericPrimitiveSerializerDeserializer.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/api/IGenericPrimitiveSerializerDeserializer.java
index fc3ae7c..c396094 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/api/IGenericPrimitiveSerializerDeserializer.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/api/IGenericPrimitiveSerializerDeserializer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/api/IRTreeFrame.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/api/IRTreeFrame.java
index cad7981..bc82566 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/api/IRTreeFrame.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/api/IRTreeFrame.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/api/IRTreeInteriorFrame.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/api/IRTreeInteriorFrame.java
index 59c047c..f6d4fe2 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/api/IRTreeInteriorFrame.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/api/IRTreeInteriorFrame.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/api/IRTreeLeafFrame.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/api/IRTreeLeafFrame.java
index 858a40d..ff730bb 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/api/IRTreeLeafFrame.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/api/IRTreeLeafFrame.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/api/IRTreePolicy.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/api/IRTreePolicy.java
index a0cc5e8..4e05630 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/api/IRTreePolicy.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/api/IRTreePolicy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/dataflow/RTreeDataflowHelper.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/dataflow/RTreeDataflowHelper.java
index 5c3b314..37735f4 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/dataflow/RTreeDataflowHelper.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/dataflow/RTreeDataflowHelper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/dataflow/RTreeDataflowHelperFactory.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/dataflow/RTreeDataflowHelperFactory.java
index 06af8ee..be21ac1 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/dataflow/RTreeDataflowHelperFactory.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/dataflow/RTreeDataflowHelperFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/dataflow/RTreeSearchOperatorDescriptor.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/dataflow/RTreeSearchOperatorDescriptor.java
index d718c69..f1f5a71 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/dataflow/RTreeSearchOperatorDescriptor.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/dataflow/RTreeSearchOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/dataflow/RTreeSearchOperatorNodePushable.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/dataflow/RTreeSearchOperatorNodePushable.java
index de4961b..9cfdbf3 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/dataflow/RTreeSearchOperatorNodePushable.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/dataflow/RTreeSearchOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RStarTreePolicy.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RStarTreePolicy.java
index aafecd5..8900134 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RStarTreePolicy.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RStarTreePolicy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RTreeComputationUtils.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RTreeComputationUtils.java
index f0122b3..2bc51e0 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RTreeComputationUtils.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RTreeComputationUtils.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RTreeNSMFrame.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RTreeNSMFrame.java
index eeada0a..df647e3 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RTreeNSMFrame.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RTreeNSMFrame.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RTreeNSMInteriorFrame.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RTreeNSMInteriorFrame.java
index f197853..f9f2109 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RTreeNSMInteriorFrame.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RTreeNSMInteriorFrame.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RTreeNSMInteriorFrameFactory.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RTreeNSMInteriorFrameFactory.java
index fdb0e0a..3799b00 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RTreeNSMInteriorFrameFactory.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RTreeNSMInteriorFrameFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RTreeNSMLeafFrame.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RTreeNSMLeafFrame.java
index 4057778..cde1aea 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RTreeNSMLeafFrame.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RTreeNSMLeafFrame.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RTreeNSMLeafFrameFactory.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RTreeNSMLeafFrameFactory.java
index b4d382b..b9dd8be 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RTreeNSMLeafFrameFactory.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RTreeNSMLeafFrameFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RTreePolicy.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RTreePolicy.java
index 9d94794..0c977cc 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RTreePolicy.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RTreePolicy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RTreePolicyType.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RTreePolicyType.java
index 712c424..e0db3a2 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RTreePolicyType.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/frames/RTreePolicyType.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/DoublePrimitiveValueProviderFactory.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/DoublePrimitiveValueProviderFactory.java
index a590ef5..4283143 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/DoublePrimitiveValueProviderFactory.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/DoublePrimitiveValueProviderFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/EntriesOrder.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/EntriesOrder.java
index 91fca6a..e8ba083 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/EntriesOrder.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/EntriesOrder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/FloatPrimitiveValueProviderFactory.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/FloatPrimitiveValueProviderFactory.java
index 605f73a..cc2f44a 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/FloatPrimitiveValueProviderFactory.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/FloatPrimitiveValueProviderFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/IntegerPrimitiveValueProviderFactory.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/IntegerPrimitiveValueProviderFactory.java
index d1457db..6f76440 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/IntegerPrimitiveValueProviderFactory.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/IntegerPrimitiveValueProviderFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/PathList.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/PathList.java
index 911029d..6704e3b 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/PathList.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/PathList.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/RTree.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/RTree.java
index 48fb6f1..528c004 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/RTree.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/RTree.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -860,8 +860,8 @@
     }
 
     @Override
-    public IIndexBulkLoader createBulkLoader(float fillFactor, boolean verifyInput, long numElementsHint)
-            throws TreeIndexException {
+    public IIndexBulkLoader createBulkLoader(float fillFactor, boolean verifyInput, long numElementsHint,
+            boolean checkIfEmptyIndex) throws TreeIndexException {
         // TODO: verifyInput currently does nothing.
         try {
             return new RTreeBulkLoader(fillFactor);
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/RTreeCursorInitialState.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/RTreeCursorInitialState.java
index 8a7ea8d..0ecb1a1 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/RTreeCursorInitialState.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/RTreeCursorInitialState.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/RTreeOpContext.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/RTreeOpContext.java
index 219ab30..da73f85 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/RTreeOpContext.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/RTreeOpContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/RTreeSearchCursor.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/RTreeSearchCursor.java
index 6b5b1b5..c71b3eb 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/RTreeSearchCursor.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/RTreeSearchCursor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/RTreeSplitKey.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/RTreeSplitKey.java
index ecbcd38..a180421 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/RTreeSplitKey.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/RTreeSplitKey.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/Rectangle.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/Rectangle.java
index d0f4c71..25b911b 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/Rectangle.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/Rectangle.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/SearchPredicate.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/SearchPredicate.java
index c8d5816..2d621f3 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/SearchPredicate.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/SearchPredicate.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/TupleEntry.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/TupleEntry.java
index 6cb84a4..4a8cea5 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/TupleEntry.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/TupleEntry.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/TupleEntryArrayList.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/TupleEntryArrayList.java
index 7bd2334..6e83086 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/TupleEntryArrayList.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/TupleEntryArrayList.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/UnorderedSlotManager.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/UnorderedSlotManager.java
index a2dcb6d..204def1 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/UnorderedSlotManager.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/impls/UnorderedSlotManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/linearize/HilbertDoubleComparator.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/linearize/HilbertDoubleComparator.java
index 7fce7e0..55b341b 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/linearize/HilbertDoubleComparator.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/linearize/HilbertDoubleComparator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.rtree.linearize;
 
 import edu.uci.ics.hyracks.api.dataflow.value.ILinearizeComparator;
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/linearize/HilbertDoubleComparatorFactory.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/linearize/HilbertDoubleComparatorFactory.java
index e06dba8..aa47974 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/linearize/HilbertDoubleComparatorFactory.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/linearize/HilbertDoubleComparatorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/linearize/ZCurveDoubleComparator.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/linearize/ZCurveDoubleComparator.java
index ee47761..5c90c7d 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/linearize/ZCurveDoubleComparator.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/linearize/ZCurveDoubleComparator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.rtree.linearize;
 
 import edu.uci.ics.hyracks.api.dataflow.value.ILinearizeComparator;
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/linearize/ZCurveDoubleComparatorFactory.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/linearize/ZCurveDoubleComparatorFactory.java
index f1b5806..e6a9c77 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/linearize/ZCurveDoubleComparatorFactory.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/linearize/ZCurveDoubleComparatorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/linearize/ZCurveIntComparator.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/linearize/ZCurveIntComparator.java
index 1f26f41..cc8cbf8 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/linearize/ZCurveIntComparator.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/linearize/ZCurveIntComparator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.rtree.linearize;
 
 import edu.uci.ics.hyracks.api.dataflow.value.ILinearizeComparator;
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/linearize/ZCurveIntComparatorFactory.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/linearize/ZCurveIntComparatorFactory.java
index 4a35a79..55bc3c2 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/linearize/ZCurveIntComparatorFactory.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/linearize/ZCurveIntComparatorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/tuples/RTreeTypeAwareTupleWriter.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/tuples/RTreeTypeAwareTupleWriter.java
index 898ebf8..32c4099 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/tuples/RTreeTypeAwareTupleWriter.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/tuples/RTreeTypeAwareTupleWriter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/tuples/RTreeTypeAwareTupleWriterFactory.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/tuples/RTreeTypeAwareTupleWriterFactory.java
index 24b2b53..94aefdb 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/tuples/RTreeTypeAwareTupleWriterFactory.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/tuples/RTreeTypeAwareTupleWriterFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/util/RTreeUtils.java b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/util/RTreeUtils.java
index 5889abb..09988a6 100644
--- a/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/util/RTreeUtils.java
+++ b/hyracks/hyracks-storage-am-rtree/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/util/RTreeUtils.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-common/pom.xml b/hyracks/hyracks-storage-common/pom.xml
index 3ee262d..519320f 100644
--- a/hyracks/hyracks-storage-common/pom.xml
+++ b/hyracks/hyracks-storage-common/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-storage-common</artifactId>
@@ -6,7 +20,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -27,7 +41,7 @@
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-api</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
diff --git a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/IStorageManagerInterface.java b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/IStorageManagerInterface.java
index 5759218..8de973b 100644
--- a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/IStorageManagerInterface.java
+++ b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/IStorageManagerInterface.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/BufferCache.java b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/BufferCache.java
index 03e46f5..8090564 100644
--- a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/BufferCache.java
+++ b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/BufferCache.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -14,9 +14,14 @@
  */
 package edu.uci.ics.hyracks.storage.common.buffercache;
 
+import java.io.IOException;
+import java.io.OutputStream;
 import java.nio.ByteBuffer;
 import java.util.HashMap;
 import java.util.Map;
+import java.util.concurrent.Executor;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ThreadFactory;
 import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.concurrent.locks.Lock;
@@ -30,10 +35,11 @@
 import edu.uci.ics.hyracks.api.io.FileReference;
 import edu.uci.ics.hyracks.api.io.IFileHandle;
 import edu.uci.ics.hyracks.api.io.IIOManager;
+import edu.uci.ics.hyracks.api.lifecycle.ILifeCycleComponent;
 import edu.uci.ics.hyracks.storage.common.file.BufferedFileHandle;
 import edu.uci.ics.hyracks.storage.common.file.IFileMapManager;
 
-public class BufferCache implements IBufferCacheInternal {
+public class BufferCache implements IBufferCacheInternal, ILifeCycleComponent {
     private static final Logger LOGGER = Logger.getLogger(BufferCache.class.getName());
     private static final int MAP_FACTOR = 2;
 
@@ -45,7 +51,6 @@
     private final IIOManager ioManager;
     private final int pageSize;
     private final int numPages;
-    private final CachedPage[] cachedPages;
     private final CacheBucket[] pageMap;
     private final IPageReplacementStrategy pageReplacementStrategy;
     private final IPageCleanerPolicy pageCleanerPolicy;
@@ -53,31 +58,34 @@
     private final CleanerThread cleanerThread;
     private final Map<Integer, BufferedFileHandle> fileInfoMap;
 
+    private CachedPage[] cachedPages;
+
     private boolean closed;
 
     public BufferCache(IIOManager ioManager, ICacheMemoryAllocator allocator,
             IPageReplacementStrategy pageReplacementStrategy, IPageCleanerPolicy pageCleanerPolicy,
-            IFileMapManager fileMapManager, int pageSize, int numPages, int maxOpenFiles) {
+            IFileMapManager fileMapManager, int pageSize, int numPages, int maxOpenFiles, ThreadFactory threadFactory) {
         this.ioManager = ioManager;
         this.pageSize = pageSize;
         this.numPages = numPages;
         this.maxOpenFiles = maxOpenFiles;
         pageReplacementStrategy.setBufferCache(this);
+        pageMap = new CacheBucket[numPages * MAP_FACTOR];
+        for (int i = 0; i < pageMap.length; ++i) {
+            pageMap[i] = new CacheBucket();
+        }
         ByteBuffer[] buffers = allocator.allocate(pageSize, numPages);
         cachedPages = new CachedPage[buffers.length];
         for (int i = 0; i < buffers.length; ++i) {
             cachedPages[i] = new CachedPage(i, buffers[i], pageReplacementStrategy);
         }
-        pageMap = new CacheBucket[numPages * MAP_FACTOR];
-        for (int i = 0; i < pageMap.length; ++i) {
-            pageMap[i] = new CacheBucket();
-        }
         this.pageReplacementStrategy = pageReplacementStrategy;
         this.pageCleanerPolicy = pageCleanerPolicy;
         this.fileMapManager = fileMapManager;
+        Executor executor = Executors.newCachedThreadPool(threadFactory);
         fileInfoMap = new HashMap<Integer, BufferedFileHandle>();
         cleanerThread = new CleanerThread();
-        cleanerThread.start();
+        executor.execute(cleanerThread);
         closed = false;
     }
 
@@ -137,7 +145,8 @@
         pinSanityCheck(dpid);
         CachedPage cPage = findPage(dpid, newPage);
         if (!newPage) {
-            // Resolve race of multiple threads trying to read the page from disk.
+            // Resolve race of multiple threads trying to read the page from
+            // disk.
             synchronized (cPage) {
                 if (!cPage.valid) {
                     read(cPage);
@@ -157,7 +166,8 @@
 
             CachedPage cPage = null;
             /*
-             * Hash dpid to get a bucket and then check if the page exists in the bucket.
+             * Hash dpid to get a bucket and then check if the page exists in
+             * the bucket.
              */
             int hash = hash(dpid);
             CacheBucket bucket = pageMap[hash];
@@ -175,29 +185,38 @@
                 bucket.bucketLock.unlock();
             }
             /*
-             * If we got here, the page was not in the hash table. Now we ask the page replacement strategy to find us a victim.
+             * If we got here, the page was not in the hash table. Now we ask
+             * the page replacement strategy to find us a victim.
              */
             CachedPage victim = (CachedPage) pageReplacementStrategy.findVictim();
             if (victim != null) {
                 /*
-                 * We have a victim with the following invariants.
-                 * 1. The dpid on the CachedPage may or may not be valid.
-                 * 2. We have a pin on the CachedPage. We have to deal with three cases here.
-                 *  Case 1: The dpid on the CachedPage is invalid (-1). This indicates that this buffer has never been used.
-                 *  So we are the only ones holding it. Get a lock on the required dpid's hash bucket, check if someone inserted
-                 *  the page we want into the table. If so, decrement the pincount on the victim and return the winner page in the
-                 *  table. If such a winner does not exist, insert the victim and return it.
-                 *  Case 2: The dpid on the CachedPage is valid.
-                 *      Case 2a: The current dpid and required dpid hash to the same bucket.
-                 *      Get the bucket lock, check that the victim is still at pinCount == 1 If so check if there is a winning
-                 *      CachedPage with the required dpid. If so, decrement the pinCount on the victim and return the winner.
-                 *      If not, update the contents of the CachedPage to hold the required dpid and return it. If the picCount
-                 *      on the victim was != 1 or CachedPage was dirty someone used the victim for its old contents -- Decrement
-                 *      the pinCount and retry.
-                 *  Case 2b: The current dpid and required dpid hash to different buckets. Get the two bucket locks in the order
-                 *  of the bucket indexes (Ordering prevents deadlocks). Check for the existence of a winner in the new bucket
-                 *  and for potential use of the victim (pinCount != 1). If everything looks good, remove the CachedPage from
-                 *  the old bucket, and add it to the new bucket and update its header with the new dpid.
+                 * We have a victim with the following invariants. 1. The dpid
+                 * on the CachedPage may or may not be valid. 2. We have a pin
+                 * on the CachedPage. We have to deal with three cases here.
+                 * Case 1: The dpid on the CachedPage is invalid (-1). This
+                 * indicates that this buffer has never been used. So we are the
+                 * only ones holding it. Get a lock on the required dpid's hash
+                 * bucket, check if someone inserted the page we want into the
+                 * table. If so, decrement the pincount on the victim and return
+                 * the winner page in the table. If such a winner does not
+                 * exist, insert the victim and return it. Case 2: The dpid on
+                 * the CachedPage is valid. Case 2a: The current dpid and
+                 * required dpid hash to the same bucket. Get the bucket lock,
+                 * check that the victim is still at pinCount == 1 If so check
+                 * if there is a winning CachedPage with the required dpid. If
+                 * so, decrement the pinCount on the victim and return the
+                 * winner. If not, update the contents of the CachedPage to hold
+                 * the required dpid and return it. If the picCount on the
+                 * victim was != 1 or CachedPage was dirty someone used the
+                 * victim for its old contents -- Decrement the pinCount and
+                 * retry. Case 2b: The current dpid and required dpid hash to
+                 * different buckets. Get the two bucket locks in the order of
+                 * the bucket indexes (Ordering prevents deadlocks). Check for
+                 * the existence of a winner in the new bucket and for potential
+                 * use of the victim (pinCount != 1). If everything looks good,
+                 * remove the CachedPage from the old bucket, and add it to the
+                 * new bucket and update its header with the new dpid.
                  */
                 if (victim.dpid < 0) {
                     /*
@@ -630,7 +649,8 @@
                             }
                             fileInfoMap.remove(entryFileId);
                             unreferencedFileFound = true;
-                            // for-each iterator is invalid because we changed fileInfoMap
+                            // for-each iterator is invalid because we changed
+                            // fileInfoMap
                             break;
                         }
                     }
@@ -764,7 +784,7 @@
             } finally {
                 fileMapManager.unregisterFile(fileId);
                 if (fInfo != null) {
-                    // Mark the fInfo as deleted, 
+                    // Mark the fInfo as deleted,
                     // such that when its pages are reclaimed in openFile(),
                     // the pages are not flushed to disk but only invalidated.
                     if (!fInfo.fileHasBeenDeleted()) {
@@ -775,4 +795,17 @@
             }
         }
     }
+
+    @Override
+    public void start() {
+        // no op
+    }
+
+    @Override
+    public void stop(boolean dumpState, OutputStream os) throws IOException {
+        if (dumpState) {
+            os.write(dumpState().getBytes());
+        }
+        close();
+    }
 }
\ No newline at end of file
diff --git a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/ClockPageReplacementStrategy.java b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/ClockPageReplacementStrategy.java
index f305627..ec97344 100644
--- a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/ClockPageReplacementStrategy.java
+++ b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/ClockPageReplacementStrategy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/DebugBufferCache.java b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/DebugBufferCache.java
index 13f7d52..4fac8ff 100644
--- a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/DebugBufferCache.java
+++ b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/DebugBufferCache.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -99,7 +99,7 @@
     }
 
     @Override
-    public void close() {
+    public void close() throws HyracksDataException {
         bufferCache.close();
     }
 
@@ -156,13 +156,13 @@
         return closeFileCount.get();
     }
 
-	@Override
-	public void flushDirtyPage(ICachedPage page) throws HyracksDataException {
-		bufferCache.flushDirtyPage(page);
-	}
+    @Override
+    public void flushDirtyPage(ICachedPage page) throws HyracksDataException {
+        bufferCache.flushDirtyPage(page);
+    }
 
-	@Override
-	public void force(int fileId, boolean metadata) throws HyracksDataException {
-		bufferCache.force(fileId, metadata);
-	}
+    @Override
+    public void force(int fileId, boolean metadata) throws HyracksDataException {
+        bufferCache.force(fileId, metadata);
+    }
 }
diff --git a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/DelayPageCleanerPolicy.java b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/DelayPageCleanerPolicy.java
index c48b235..f9a93fe 100644
--- a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/DelayPageCleanerPolicy.java
+++ b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/DelayPageCleanerPolicy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/DirectBufferAllocator.java b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/DirectBufferAllocator.java
index e016bd9..488ccc6 100644
--- a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/DirectBufferAllocator.java
+++ b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/DirectBufferAllocator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/HeapBufferAllocator.java b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/HeapBufferAllocator.java
index 294a4e8..3b7d25b 100644
--- a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/HeapBufferAllocator.java
+++ b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/HeapBufferAllocator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/IBufferCache.java b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/IBufferCache.java
index e8b407e..cb892ff 100644
--- a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/IBufferCache.java
+++ b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/IBufferCache.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -25,7 +25,7 @@
     public void closeFile(int fileId) throws HyracksDataException;
 
     public void deleteFile(int fileId, boolean flushDirtyPages) throws HyracksDataException;
-    
+
     public ICachedPage tryPin(long dpid) throws HyracksDataException;
 
     public ICachedPage pin(long dpid, boolean newPage) throws HyracksDataException;
@@ -33,12 +33,12 @@
     public void unpin(ICachedPage page) throws HyracksDataException;
 
     public void flushDirtyPage(ICachedPage page) throws HyracksDataException;
-    
+
     public void force(int fileId, boolean metadata) throws HyracksDataException;
-    
+
     public int getPageSize();
 
     public int getNumPages();
 
-    public void close();
+    public void close() throws HyracksDataException;
 }
\ No newline at end of file
diff --git a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/IBufferCacheInternal.java b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/IBufferCacheInternal.java
index 98e8407..4c9e949 100644
--- a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/IBufferCacheInternal.java
+++ b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/IBufferCacheInternal.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/ICacheMemoryAllocator.java b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/ICacheMemoryAllocator.java
index 4cdb895..a1d6599 100644
--- a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/ICacheMemoryAllocator.java
+++ b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/ICacheMemoryAllocator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/ICachedPage.java b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/ICachedPage.java
index 98c9f21..b5bf3bb 100644
--- a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/ICachedPage.java
+++ b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/ICachedPage.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/ICachedPageInternal.java b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/ICachedPageInternal.java
index baaa8f8..22c02d1 100644
--- a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/ICachedPageInternal.java
+++ b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/ICachedPageInternal.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/IPageCleanerPolicy.java b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/IPageCleanerPolicy.java
index 197dc28..3337a62 100644
--- a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/IPageCleanerPolicy.java
+++ b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/IPageCleanerPolicy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/IPageReplacementStrategy.java b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/IPageReplacementStrategy.java
index e723cf6..b6bfdc3 100644
--- a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/IPageReplacementStrategy.java
+++ b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/buffercache/IPageReplacementStrategy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/BufferedFileHandle.java b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/BufferedFileHandle.java
index 1444886b..0102c83 100644
--- a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/BufferedFileHandle.java
+++ b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/BufferedFileHandle.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/IFileMapManager.java b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/IFileMapManager.java
index fa1ec3a..f9ce887 100644
--- a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/IFileMapManager.java
+++ b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/IFileMapManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/IFileMapProvider.java b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/IFileMapProvider.java
index 5219675..dcab11f 100644
--- a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/IFileMapProvider.java
+++ b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/IFileMapProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/ILocalResourceFactory.java b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/ILocalResourceFactory.java
index c443b0b..1d1a671 100644
--- a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/ILocalResourceFactory.java
+++ b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/ILocalResourceFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/ILocalResourceFactoryProvider.java b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/ILocalResourceFactoryProvider.java
index fb6a210..466ebf6 100644
--- a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/ILocalResourceFactoryProvider.java
+++ b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/ILocalResourceFactoryProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/ILocalResourceRepository.java b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/ILocalResourceRepository.java
index 36aa088..7ae2414 100644
--- a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/ILocalResourceRepository.java
+++ b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/ILocalResourceRepository.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -24,11 +24,11 @@
 
     public LocalResource getResourceByName(String name) throws HyracksDataException;
 
-    public void insert(LocalResource resource, int ioDeviceId) throws HyracksDataException;
+    public void insert(LocalResource resource) throws HyracksDataException;
 
-    public void deleteResourceById(long id, int ioDeviceId) throws HyracksDataException;
+    public void deleteResourceById(long id) throws HyracksDataException;
 
-    public void deleteResourceByName(String name, int ioDeviceId) throws HyracksDataException;
+    public void deleteResourceByName(String name) throws HyracksDataException;
 
     public List<LocalResource> getAllResources() throws HyracksDataException;
 }
diff --git a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/ILocalResourceRepositoryFactory.java b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/ILocalResourceRepositoryFactory.java
index 4b3124a..01cb13b 100644
--- a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/ILocalResourceRepositoryFactory.java
+++ b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/ILocalResourceRepositoryFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/LocalResource.java b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/LocalResource.java
index f4575f3..d91e02e 100644
--- a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/LocalResource.java
+++ b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/LocalResource.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/NoOpLocalResourceFactoryProvider.java b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/NoOpLocalResourceFactoryProvider.java
index e69f4e7..8742942 100644
--- a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/NoOpLocalResourceFactoryProvider.java
+++ b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/NoOpLocalResourceFactoryProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/ResourceIdFactory.java b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/ResourceIdFactory.java
index cb5c97e..e702d04 100644
--- a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/ResourceIdFactory.java
+++ b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/ResourceIdFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/ResourceIdFactoryProvider.java b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/ResourceIdFactoryProvider.java
index 62cdb36..0c72a24 100644
--- a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/ResourceIdFactoryProvider.java
+++ b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/ResourceIdFactoryProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/TransientFileMapManager.java b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/TransientFileMapManager.java
index e8085da..20aec3f 100644
--- a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/TransientFileMapManager.java
+++ b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/TransientFileMapManager.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.common.file;
 
 import java.util.HashMap;
diff --git a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/TransientLocalResourceFactory.java b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/TransientLocalResourceFactory.java
index ffd3dff..ab19312 100644
--- a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/TransientLocalResourceFactory.java
+++ b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/TransientLocalResourceFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/TransientLocalResourceFactoryProvider.java b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/TransientLocalResourceFactoryProvider.java
index d9a51a3..7d5eb3a 100644
--- a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/TransientLocalResourceFactoryProvider.java
+++ b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/TransientLocalResourceFactoryProvider.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/TransientLocalResourceRepository.java b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/TransientLocalResourceRepository.java
index f853a36..63b71a3 100644
--- a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/TransientLocalResourceRepository.java
+++ b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/TransientLocalResourceRepository.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -37,7 +37,7 @@
     }
 
     @Override
-    public synchronized void insert(LocalResource resource, int ioDeviceId) throws HyracksDataException {
+    public synchronized void insert(LocalResource resource) throws HyracksDataException {
         long id = resource.getResourceId();
 
         if (id2ResourceMap.containsKey(id)) {
@@ -48,7 +48,7 @@
     }
 
     @Override
-    public synchronized void deleteResourceById(long id, int ioDeviceId) throws HyracksDataException {
+    public synchronized void deleteResourceById(long id) throws HyracksDataException {
         LocalResource resource = id2ResourceMap.get(id);
         if (resource == null) {
             throw new HyracksDataException("Resource doesn't exist");
@@ -58,7 +58,7 @@
     }
 
     @Override
-    public synchronized void deleteResourceByName(String name, int ioDeviceId) throws HyracksDataException {
+    public synchronized void deleteResourceByName(String name) throws HyracksDataException {
         LocalResource resource = name2ResourceMap.get(name);
         if (resource == null) {
             throw new HyracksDataException("Resource doesn't exist");
diff --git a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/TransientLocalResourceRepositoryFactory.java b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/TransientLocalResourceRepositoryFactory.java
index a6b00a4..52486d1 100644
--- a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/TransientLocalResourceRepositoryFactory.java
+++ b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/file/TransientLocalResourceRepositoryFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/sync/LatchType.java b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/sync/LatchType.java
index bcdcac1..25de887 100644
--- a/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/sync/LatchType.java
+++ b/hyracks/hyracks-storage-common/src/main/java/edu/uci/ics/hyracks/storage/common/sync/LatchType.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-test-support/pom.xml b/hyracks/hyracks-test-support/pom.xml
index 217a9a4..bc00394 100644
--- a/hyracks/hyracks-test-support/pom.xml
+++ b/hyracks/hyracks-test-support/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-test-support</artifactId>
@@ -6,7 +20,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -27,33 +41,33 @@
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-control-nc</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-storage-common</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-storage-am-btree</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-storage-am-rtree</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-storage-am-lsm-invertedindex</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/AbstractModificationOperationCallbackTest.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/AbstractModificationOperationCallbackTest.java
index 30843aa..e1a4ec8 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/AbstractModificationOperationCallbackTest.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/AbstractModificationOperationCallbackTest.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.btree;
 
 import org.junit.After;
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/AbstractOperationCallbackTest.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/AbstractOperationCallbackTest.java
index 41dfdfe..93eb033 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/AbstractOperationCallbackTest.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/AbstractOperationCallbackTest.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.btree;
 
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/AbstractSearchOperationCallbackTest.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/AbstractSearchOperationCallbackTest.java
index 853ac3a..02ce7f1 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/AbstractSearchOperationCallbackTest.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/AbstractSearchOperationCallbackTest.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.btree;
 
 import java.util.concurrent.Callable;
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexBulkLoadTest.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexBulkLoadTest.java
index 6d7ee4d..54eac1e 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexBulkLoadTest.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexBulkLoadTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -62,9 +62,9 @@
         ctx.getIndex().deactivate();
         ctx.getIndex().destroy();
     }
-    
+
     @Override
     protected String getTestOpName() {
         return "BulkLoad";
     }
-}
+}
\ No newline at end of file
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexDeleteTest.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexDeleteTest.java
index b96f252..8cced18 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexDeleteTest.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexDeleteTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexExamplesTest.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexExamplesTest.java
index 970526e..eafeff2 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexExamplesTest.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexExamplesTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -621,7 +621,7 @@
             LOGGER.info("Bulk loading " + ins + " tuples");
         }
         long start = System.currentTimeMillis();
-        IIndexBulkLoader bulkLoader = treeIndex.createBulkLoader(0.7f, false, ins);
+        IIndexBulkLoader bulkLoader = treeIndex.createBulkLoader(0.7f, false, ins, true);
         ArrayTupleBuilder tb = new ArrayTupleBuilder(fieldCount);
         ArrayTupleReference tuple = new ArrayTupleReference();
         for (int i = 0; i < ins; i++) {
@@ -691,7 +691,7 @@
             treeIndex.activate();
 
             // Load sorted records, and expect to fail at tuple i.
-            IIndexBulkLoader bulkLoader = treeIndex.createBulkLoader(0.7f, true, ins);
+            IIndexBulkLoader bulkLoader = treeIndex.createBulkLoader(0.7f, true, ins, true);
             for (int j = 0; j < ins; j++) {
                 if (j > i) {
                     fail("Bulk load failure test unexpectedly succeeded past tuple: " + j);
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexInsertTest.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexInsertTest.java
index 32b597c..ded52bf 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexInsertTest.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexInsertTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexMultiThreadTest.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexMultiThreadTest.java
index fa22f6b..e37a95d 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexMultiThreadTest.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexMultiThreadTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexTestContext.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexTestContext.java
index 78d88e8..85c7fa5 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexTestContext.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexTestContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexTestDriver.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexTestDriver.java
index ef2ee0b..6f3923c 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexTestDriver.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexTestDriver.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexTestUtils.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexTestUtils.java
index 04c64fe..5b7b050 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexTestUtils.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexTestUtils.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.btree;
 
 import static org.junit.Assert.fail;
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexUpdateTest.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexUpdateTest.java
index 049724e..e313f8a 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexUpdateTest.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexUpdateTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexUpsertTest.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexUpsertTest.java
index d34928f..59fca63 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexUpsertTest.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/btree/OrderedIndexUpsertTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/AbstractIndexLifecycleTest.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/AbstractIndexLifecycleTest.java
index 2226d94..8226c32 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/AbstractIndexLifecycleTest.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/AbstractIndexLifecycleTest.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.common;
 
 import org.junit.After;
@@ -38,7 +52,6 @@
 
         // Double open is valid
         index.activate();
-        index.activate();
         Assert.assertTrue(isEmptyIndex());
 
         // Insert some stuff
@@ -55,7 +68,6 @@
 
         // Double close is valid
         index.deactivate();
-        index.deactivate();
 
         // Check that the inserted stuff is still there
         index.activate();
@@ -93,4 +105,19 @@
     public void invalidSequenceTest4() throws Exception {
         index.clear();
     }
+
+    @Test(expected = HyracksDataException.class)
+    public void invalidSequenceTest5() throws Exception {
+        index.create();
+        index.activate();
+        index.activate();
+    }
+
+    @Test(expected = HyracksDataException.class)
+    public void invalidSequenceTest6() throws Exception {
+        index.create();
+        index.activate();
+        index.deactivate();
+        index.deactivate();
+    }
 }
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/AbstractIndexTestWorker.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/AbstractIndexTestWorker.java
index 1c402f6..3c8b740 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/AbstractIndexTestWorker.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/AbstractIndexTestWorker.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/CheckTuple.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/CheckTuple.java
index b7037d6..b396f22 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/CheckTuple.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/CheckTuple.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/IIndexTestContext.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/IIndexTestContext.java
index 3599c5e..095b9c8 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/IIndexTestContext.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/IIndexTestContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/IIndexTestWorkerFactory.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/IIndexTestWorkerFactory.java
index 56e39c5..65ed2ce 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/IIndexTestWorkerFactory.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/IIndexTestWorkerFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -22,4 +22,4 @@
 public interface IIndexTestWorkerFactory {
     public AbstractIndexTestWorker create(DataGenThread dataGen, TestOperationSelector opSelector, IIndex index,
             int numBatches) throws HyracksDataException;
-}
\ No newline at end of file
+}
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/ITreeIndexTestContext.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/ITreeIndexTestContext.java
index 9be3e29..bceb61d 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/ITreeIndexTestContext.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/ITreeIndexTestContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/ITreeIndexTestWorker.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/ITreeIndexTestWorker.java
index 5e2733f..a10c262 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/ITreeIndexTestWorker.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/ITreeIndexTestWorker.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/IndexMultiThreadTestDriver.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/IndexMultiThreadTestDriver.java
index 1c551e0..d8f9485 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/IndexMultiThreadTestDriver.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/IndexMultiThreadTestDriver.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/IndexTestContext.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/IndexTestContext.java
index b08fef5..339cd14 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/IndexTestContext.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/IndexTestContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/TestOperationCallback.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/TestOperationCallback.java
index 2a803d3..95388f2 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/TestOperationCallback.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/TestOperationCallback.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.common;
 
 import java.util.Random;
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/TestOperationSelector.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/TestOperationSelector.java
index 47735e5..fc87f1d 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/TestOperationSelector.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/TestOperationSelector.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/TestWorkloadConf.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/TestWorkloadConf.java
index 28845ed..2517361 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/TestWorkloadConf.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/TestWorkloadConf.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/TreeIndexTestUtils.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/TreeIndexTestUtils.java
index 1a80231..b5742b5 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/TreeIndexTestUtils.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/common/TreeIndexTestUtils.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -243,7 +243,7 @@
         ArrayTupleBuilder tupleBuilder = new ArrayTupleBuilder(fieldCount);
         ArrayTupleReference tuple = new ArrayTupleReference();
         // Perform bulk load.
-        IIndexBulkLoader bulkLoader = ctx.getIndex().createBulkLoader(0.7f, false, numTuples);
+        IIndexBulkLoader bulkLoader = ctx.getIndex().createBulkLoader(0.7f, false, numTuples, false);
         int c = 1;
         for (CheckTuple checkTuple : checkTuples) {
             if (LOGGER.isLoggable(Level.INFO)) {
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/config/AccessMethodTestsConfig.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/config/AccessMethodTestsConfig.java
index 73176f3..693dc47 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/config/AccessMethodTestsConfig.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/config/AccessMethodTestsConfig.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/AbstractRTreeBulkLoadTest.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/AbstractRTreeBulkLoadTest.java
index 54ad1fe..11adaa2 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/AbstractRTreeBulkLoadTest.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/AbstractRTreeBulkLoadTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -26,11 +26,9 @@
 public abstract class AbstractRTreeBulkLoadTest extends AbstractRTreeTestDriver {
 
     private final RTreeTestUtils rTreeTestUtils;
-    private final int bulkLoadRounds;
 
-    public AbstractRTreeBulkLoadTest(int bulkLoadRounds, boolean testRstarPolicy) {
+    public AbstractRTreeBulkLoadTest(boolean testRstarPolicy) {
         super(testRstarPolicy);
-        this.bulkLoadRounds = bulkLoadRounds;
         this.rTreeTestUtils = new RTreeTestUtils();
     }
 
@@ -41,19 +39,19 @@
         AbstractRTreeTestContext ctx = createTestContext(fieldSerdes, valueProviderFactories, numKeys, rtreePolicyType);
         ctx.getIndex().create();
         ctx.getIndex().activate();
-        for (int i = 0; i < bulkLoadRounds; i++) {
-            // We assume all fieldSerdes are of the same type. Check the first
-            // one to determine which field types to generate.
-            if (fieldSerdes[0] instanceof IntegerSerializerDeserializer) {
-                rTreeTestUtils.bulkLoadIntTuples(ctx, numTuplesToInsert, getRandom());
-            } else if (fieldSerdes[0] instanceof DoubleSerializerDeserializer) {
-                rTreeTestUtils.bulkLoadDoubleTuples(ctx, numTuplesToInsert, getRandom());
-            }
 
-            rTreeTestUtils.checkScan(ctx);
-            rTreeTestUtils.checkDiskOrderScan(ctx);
-            rTreeTestUtils.checkRangeSearch(ctx, key);
+        // We assume all fieldSerdes are of the same type. Check the first
+        // one to determine which field types to generate.
+        if (fieldSerdes[0] instanceof IntegerSerializerDeserializer) {
+            rTreeTestUtils.bulkLoadIntTuples(ctx, numTuplesToInsert, getRandom());
+        } else if (fieldSerdes[0] instanceof DoubleSerializerDeserializer) {
+            rTreeTestUtils.bulkLoadDoubleTuples(ctx, numTuplesToInsert, getRandom());
         }
+
+        rTreeTestUtils.checkScan(ctx);
+        rTreeTestUtils.checkDiskOrderScan(ctx);
+        rTreeTestUtils.checkRangeSearch(ctx, key);
+
         ctx.getIndex().deactivate();
         ctx.getIndex().destroy();
     }
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/AbstractRTreeDeleteTest.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/AbstractRTreeDeleteTest.java
index 18d042b..c9f4cc6 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/AbstractRTreeDeleteTest.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/AbstractRTreeDeleteTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/AbstractRTreeExamplesTest.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/AbstractRTreeExamplesTest.java
index fdb4341..44ab0d9 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/AbstractRTreeExamplesTest.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/AbstractRTreeExamplesTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -709,7 +709,7 @@
             LOGGER.info("Bulk loading " + numInserts + " tuples");
         }
         long start = System.currentTimeMillis();
-        IIndexBulkLoader bulkLoader = treeIndex.createBulkLoader(0.7f, false, numInserts);
+        IIndexBulkLoader bulkLoader = treeIndex.createBulkLoader(0.7f, false, numInserts, true);
         ArrayTupleBuilder tb = new ArrayTupleBuilder(fieldCount);
         ArrayTupleReference tuple = new ArrayTupleReference();
 
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/AbstractRTreeInsertTest.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/AbstractRTreeInsertTest.java
index eb90989..4b4da0a 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/AbstractRTreeInsertTest.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/AbstractRTreeInsertTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/AbstractRTreeMultiThreadTest.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/AbstractRTreeMultiThreadTest.java
index 0c1b9a5..d97a2d7 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/AbstractRTreeMultiThreadTest.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/AbstractRTreeMultiThreadTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/AbstractRTreeTestContext.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/AbstractRTreeTestContext.java
index 2e381f7..77c0665 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/AbstractRTreeTestContext.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/AbstractRTreeTestContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/AbstractRTreeTestDriver.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/AbstractRTreeTestDriver.java
index de92823..472a1bf 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/AbstractRTreeTestDriver.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/AbstractRTreeTestDriver.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/RTreeCheckTuple.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/RTreeCheckTuple.java
index c498136..04ed042 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/RTreeCheckTuple.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/RTreeCheckTuple.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/RTreeTestUtils.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/RTreeTestUtils.java
index 067c6cb..f93a007 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/RTreeTestUtils.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/storage/am/rtree/RTreeTestUtils.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.rtree;
 
 import static org.junit.Assert.fail;
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/CounterContext.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/CounterContext.java
index 689a524..a4482cf 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/CounterContext.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/CounterContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestIndexLifecycleManagerProvider.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestIndexLifecycleManagerProvider.java
index 3a4d3e7..fcba852 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestIndexLifecycleManagerProvider.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestIndexLifecycleManagerProvider.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.test.support;
 
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestJobletContext.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestJobletContext.java
index 8285efe..e1a196a 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestJobletContext.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestJobletContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestNCApplicationContext.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestNCApplicationContext.java
index 2dc0c76..9b77e23 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestNCApplicationContext.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestNCApplicationContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -15,6 +15,7 @@
 package edu.uci.ics.hyracks.test.support;
 
 import java.io.Serializable;
+import java.util.concurrent.ThreadFactory;
 
 import edu.uci.ics.hyracks.api.application.INCApplicationContext;
 import edu.uci.ics.hyracks.api.context.IHyracksRootContext;
@@ -103,4 +104,16 @@
     public IMemoryManager getMemoryManager() {
         return mm;
     }
+
+    @Override
+    public ThreadFactory getThreadFactory() {
+        // TODO Auto-generated method stub
+        return null;
+    }
+
+    @Override
+    public void setThreadFactory(ThreadFactory threadFactory) {
+        // TODO Auto-generated method stub
+
+    }
 }
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestRootContext.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestRootContext.java
index 2fe5ded..1c7dddc 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestRootContext.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestRootContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestStorageManagerComponentHolder.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestStorageManagerComponentHolder.java
index fdb2100..dd85945 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestStorageManagerComponentHolder.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestStorageManagerComponentHolder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -18,6 +18,7 @@
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.Executors;
+import java.util.concurrent.ThreadFactory;
 
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 import edu.uci.ics.hyracks.api.exceptions.HyracksException;
@@ -52,6 +53,11 @@
     private static int pageSize;
     private static int numPages;
     private static int maxOpenFiles;
+    private final static ThreadFactory threadFactory = new ThreadFactory() {
+        public Thread newThread(Runnable r) {
+            return new Thread(r);
+        }
+    };
 
     public static void init(int pageSize, int numPages, int maxOpenFiles) {
         TestStorageManagerComponentHolder.pageSize = pageSize;
@@ -76,7 +82,7 @@
             IPageReplacementStrategy prs = new ClockPageReplacementStrategy();
             IFileMapProvider fileMapProvider = getFileMapProvider(ctx);
             bufferCache = new BufferCache(ctx.getIOManager(), allocator, prs, new DelayPageCleanerPolicy(1000),
-                    (IFileMapManager) fileMapProvider, pageSize, numPages, maxOpenFiles);
+                    (IFileMapManager) fileMapProvider, pageSize, numPages, maxOpenFiles, threadFactory);
         }
         return bufferCache;
     }
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestStorageManagerInterface.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestStorageManagerInterface.java
index 26c7861..43b1619 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestStorageManagerInterface.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestStorageManagerInterface.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestTaskContext.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestTaskContext.java
index 8311ebd..10b5582 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestTaskContext.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestTaskContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestUtils.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestUtils.java
index 71da634..b445c3b 100644
--- a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestUtils.java
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestUtils.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestVirtualBufferCacheProvider.java b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestVirtualBufferCacheProvider.java
new file mode 100644
index 0000000..9db21cb
--- /dev/null
+++ b/hyracks/hyracks-test-support/src/main/java/edu/uci/ics/hyracks/test/support/TestVirtualBufferCacheProvider.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.hyracks.test.support;
+
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCacheProvider;
+import edu.uci.ics.hyracks.storage.am.lsm.common.impls.VirtualBufferCache;
+import edu.uci.ics.hyracks.storage.common.buffercache.HeapBufferAllocator;
+
+public class TestVirtualBufferCacheProvider implements IVirtualBufferCacheProvider {
+
+    private static final long serialVersionUID = 1L;
+
+    private final int pageSize;
+    private final int numPages;
+
+    public TestVirtualBufferCacheProvider(int pageSize, int numPages) {
+        this.pageSize = pageSize;
+        this.numPages = numPages;
+    }
+
+    @Override
+    public IVirtualBufferCache getVirtualBufferCache(IHyracksTaskContext ctx) {
+        return new VirtualBufferCache(new HeapBufferAllocator(), pageSize, numPages);
+    }
+}
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-bloomfilter-test/pom.xml b/hyracks/hyracks-tests/hyracks-storage-am-bloomfilter-test/pom.xml
index aa2238f..09f7302 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-bloomfilter-test/pom.xml
+++ b/hyracks/hyracks-tests/hyracks-storage-am-bloomfilter-test/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-storage-am-bloomfilter-test</artifactId>
@@ -5,7 +19,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks-tests</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -32,14 +46,14 @@
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-storage-am-bloomfilter</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-test-support</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>test</scope>
   	</dependency>
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-bloomfilter-test/src/test/java/edu/uci/ics/hyracks/storage/am/bloomfilter/BloomFilterTest.java b/hyracks/hyracks-tests/hyracks-storage-am-bloomfilter-test/src/test/java/edu/uci/ics/hyracks/storage/am/bloomfilter/BloomFilterTest.java
index 6dab32c..09e75b8 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-bloomfilter-test/src/test/java/edu/uci/ics/hyracks/storage/am/bloomfilter/BloomFilterTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-bloomfilter-test/src/test/java/edu/uci/ics/hyracks/storage/am/bloomfilter/BloomFilterTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-bloomfilter-test/src/test/java/edu/uci/ics/hyracks/storage/am/bloomfilter/MurmurHashForITupleReferenceTest.java b/hyracks/hyracks-tests/hyracks-storage-am-bloomfilter-test/src/test/java/edu/uci/ics/hyracks/storage/am/bloomfilter/MurmurHashForITupleReferenceTest.java
index 284a6cb..9f1f3da 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-bloomfilter-test/src/test/java/edu/uci/ics/hyracks/storage/am/bloomfilter/MurmurHashForITupleReferenceTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-bloomfilter-test/src/test/java/edu/uci/ics/hyracks/storage/am/bloomfilter/MurmurHashForITupleReferenceTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-bloomfilter-test/src/test/java/edu/uci/ics/hyracks/storage/am/bloomfilter/util/AbstractBloomFilterTest.java b/hyracks/hyracks-tests/hyracks-storage-am-bloomfilter-test/src/test/java/edu/uci/ics/hyracks/storage/am/bloomfilter/util/AbstractBloomFilterTest.java
index 9b857a6..0cb2822 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-bloomfilter-test/src/test/java/edu/uci/ics/hyracks/storage/am/bloomfilter/util/AbstractBloomFilterTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-bloomfilter-test/src/test/java/edu/uci/ics/hyracks/storage/am/bloomfilter/util/AbstractBloomFilterTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-bloomfilter-test/src/test/java/edu/uci/ics/hyracks/storage/am/bloomfilter/util/BloomFilterTestHarness.java b/hyracks/hyracks-tests/hyracks-storage-am-bloomfilter-test/src/test/java/edu/uci/ics/hyracks/storage/am/bloomfilter/util/BloomFilterTestHarness.java
index 8fac122..821ff6c 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-bloomfilter-test/src/test/java/edu/uci/ics/hyracks/storage/am/bloomfilter/util/BloomFilterTestHarness.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-bloomfilter-test/src/test/java/edu/uci/ics/hyracks/storage/am/bloomfilter/util/BloomFilterTestHarness.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/pom.xml b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/pom.xml
index 8e7df1d..b363aac 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/pom.xml
+++ b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-storage-am-btree-test</artifactId>
@@ -6,7 +20,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks-tests</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -34,14 +48,14 @@
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-storage-am-btree</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-test-support</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>test</scope>
   	</dependency>
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeBulkLoadTest.java b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeBulkLoadTest.java
index 5417ca1..0e69f04 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeBulkLoadTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeBulkLoadTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeDeleteTest.java b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeDeleteTest.java
index 10cd59f..36b5f69 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeDeleteTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeDeleteTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeExamplesTest.java b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeExamplesTest.java
index c02d53d..0405b3b 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeExamplesTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeExamplesTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeInsertTest.java b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeInsertTest.java
index efe7579..b5ff1ab 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeInsertTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeInsertTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeLifecycleTest.java b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeLifecycleTest.java
index 1445d2c..b3f1456 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeLifecycleTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeLifecycleTest.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.btree;
 
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
@@ -35,8 +49,12 @@
 
     @Override
     public void tearDown() throws HyracksDataException {
-        testCtx.getIndex().deactivate();
-        testCtx.getIndex().destroy();
+        try {
+            testCtx.getIndex().deactivate();
+        } catch (Exception e) {
+        } finally {
+            testCtx.getIndex().destroy();
+        }
         harness.tearDown();
     }
 
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeModificationOperationCallbackTest.java b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeModificationOperationCallbackTest.java
index b5cbca3..81efaa2 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeModificationOperationCallbackTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeModificationOperationCallbackTest.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.btree;
 
 import edu.uci.ics.hyracks.dataflow.common.util.SerdeUtils;
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeSearchCursorTest.java b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeSearchCursorTest.java
index ad0b21e..88881e4 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeSearchCursorTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeSearchCursorTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeSearchOperationCallbackTest.java b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeSearchOperationCallbackTest.java
index 037d992..12f8635 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeSearchOperationCallbackTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeSearchOperationCallbackTest.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.btree;
 
 import edu.uci.ics.hyracks.dataflow.common.util.SerdeUtils;
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeStatsTest.java b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeStatsTest.java
index 57535b2..2c06c20 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeStatsTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeStatsTest.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.btree;
 
 import java.io.DataOutput;
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeUpdateSearchTest.java b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeUpdateSearchTest.java
index f01799d..e057dd6 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeUpdateSearchTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeUpdateSearchTest.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.btree;
 
 import java.util.Random;
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeUpdateTest.java b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeUpdateTest.java
index 89bb50e..4d8cc6a 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeUpdateTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeUpdateTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeUpsertTest.java b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeUpsertTest.java
index ab32156..9602116 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeUpsertTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/BTreeUpsertTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/FieldPrefixNSMTest.java b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/FieldPrefixNSMTest.java
index 1bf511e..a86238a 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/FieldPrefixNSMTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/FieldPrefixNSMTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/StorageManagerTest.java b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/StorageManagerTest.java
index d273a12..29da625 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/StorageManagerTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/StorageManagerTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/multithread/BTreeMultiThreadTest.java b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/multithread/BTreeMultiThreadTest.java
index 3f38c05..ee305a6 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/multithread/BTreeMultiThreadTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/multithread/BTreeMultiThreadTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/multithread/BTreeTestWorker.java b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/multithread/BTreeTestWorker.java
index d3ebeb0..262e21c 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/multithread/BTreeTestWorker.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/multithread/BTreeTestWorker.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/multithread/BTreeTestWorkerFactory.java b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/multithread/BTreeTestWorkerFactory.java
index 67089bd..a6d0425 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/multithread/BTreeTestWorkerFactory.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/multithread/BTreeTestWorkerFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/util/AbstractBTreeTest.java b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/util/AbstractBTreeTest.java
index ef9a456..fee8209 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/util/AbstractBTreeTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/util/AbstractBTreeTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/util/BTreeTestContext.java b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/util/BTreeTestContext.java
index 7b6a06c..7aa6f18 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/util/BTreeTestContext.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/util/BTreeTestContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/util/BTreeTestHarness.java b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/util/BTreeTestHarness.java
index e357bf5..7792064 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/util/BTreeTestHarness.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/btree/util/BTreeTestHarness.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/pom.xml b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/pom.xml
index 35ab780..466af51 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/pom.xml
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-storage-am-lsm-btree-test</artifactId>
@@ -5,7 +19,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks-tests</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -25,20 +39,20 @@
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-storage-am-lsm-btree</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>  	
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-storage-am-common</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-test-support</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<scope>compile</scope>
   	</dependency>
   </dependencies>
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeBulkLoadTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeBulkLoadTest.java
index a7eee57..e0a2a46 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeBulkLoadTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeBulkLoadTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -51,11 +51,10 @@
     @Override
     protected OrderedIndexTestContext createTestContext(ISerializerDeserializer[] fieldSerdes, int numKeys,
             BTreeLeafFrameType leafType) throws Exception {
-        return LSMBTreeTestContext.create(harness.getMemBufferCache(), harness.getMemFreePageManager(),
-                harness.getIOManager(), harness.getFileReference(), harness.getDiskBufferCache(),
-                harness.getDiskFileMapProvider(), fieldSerdes, numKeys, harness.getBoomFilterFalsePositiveRate(),harness.getMergePolicy(),
-                harness.getOperationTrackerFactory(), harness.getIOScheduler(),
-                harness.getIOOperationCallbackProvider(), harness.getIODeviceId());
+        return LSMBTreeTestContext.create(harness.getVirtualBufferCache(), harness.getFileReference(),
+                harness.getDiskBufferCache(), harness.getDiskFileMapProvider(), fieldSerdes, numKeys,
+                harness.getBoomFilterFalsePositiveRate(), harness.getMergePolicy(), harness.getOperationTracker(),
+                harness.getIOScheduler(), harness.getIOOperationCallbackProvider());
     }
 
     @Override
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeDeleteTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeDeleteTest.java
index a648ff6..122b788 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeDeleteTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeDeleteTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -51,11 +51,10 @@
     @Override
     protected OrderedIndexTestContext createTestContext(ISerializerDeserializer[] fieldSerdes, int numKeys,
             BTreeLeafFrameType leafType) throws Exception {
-        return LSMBTreeTestContext.create(harness.getMemBufferCache(), harness.getMemFreePageManager(),
-                harness.getIOManager(), harness.getFileReference(), harness.getDiskBufferCache(),
-                harness.getDiskFileMapProvider(), fieldSerdes, numKeys, harness.getBoomFilterFalsePositiveRate(),
-                harness.getMergePolicy(), harness.getOperationTrackerFactory(), harness.getIOScheduler(),
-                harness.getIOOperationCallbackProvider(), harness.getIODeviceId());
+        return LSMBTreeTestContext.create(harness.getVirtualBufferCache(), harness.getFileReference(),
+                harness.getDiskBufferCache(), harness.getDiskFileMapProvider(), fieldSerdes, numKeys,
+                harness.getBoomFilterFalsePositiveRate(), harness.getMergePolicy(), harness.getOperationTracker(),
+                harness.getIOScheduler(), harness.getIOOperationCallbackProvider());
     }
 
     @Override
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeExamplesTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeExamplesTest.java
index b5b0b76..60e0492 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeExamplesTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeExamplesTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -34,12 +34,10 @@
     @Override
     protected ITreeIndex createTreeIndex(ITypeTraits[] typeTraits, IBinaryComparatorFactory[] cmpFactories,
             int[] bloomFilterKeyFields) throws TreeIndexException {
-        return LSMBTreeUtils.createLSMTree(harness.getMemBufferCache(), harness.getMemFreePageManager(),
-                harness.getIOManager(), harness.getFileReference(), harness.getDiskBufferCache(),
-                harness.getDiskFileMapProvider(), typeTraits, cmpFactories, bloomFilterKeyFields,
-                harness.getBoomFilterFalsePositiveRate(), harness.getMergePolicy(),
-                harness.getOperationTrackerFactory(), harness.getIOScheduler(),
-                harness.getIOOperationCallbackProvider(), harness.getIODeviceId());
+        return LSMBTreeUtils.createLSMTree(harness.getVirtualBufferCache(), harness.getFileReference(),
+                harness.getDiskBufferCache(), harness.getDiskFileMapProvider(), typeTraits, cmpFactories,
+                bloomFilterKeyFields, harness.getBoomFilterFalsePositiveRate(), harness.getMergePolicy(),
+                harness.getOperationTracker(), harness.getIOScheduler(), harness.getIOOperationCallbackProvider());
     }
 
     @Before
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeInsertTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeInsertTest.java
index 875bbd4..76a0206 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeInsertTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeInsertTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -51,11 +51,10 @@
     @Override
     protected OrderedIndexTestContext createTestContext(ISerializerDeserializer[] fieldSerdes, int numKeys,
             BTreeLeafFrameType leafType) throws Exception {
-        return LSMBTreeTestContext.create(harness.getMemBufferCache(), harness.getMemFreePageManager(),
-                harness.getIOManager(), harness.getFileReference(), harness.getDiskBufferCache(),
-                harness.getDiskFileMapProvider(), fieldSerdes, numKeys, harness.getBoomFilterFalsePositiveRate(),
-                harness.getMergePolicy(), harness.getOperationTrackerFactory(), harness.getIOScheduler(),
-                harness.getIOOperationCallbackProvider(), harness.getIODeviceId());
+        return LSMBTreeTestContext.create(harness.getVirtualBufferCache(), harness.getFileReference(),
+                harness.getDiskBufferCache(), harness.getDiskFileMapProvider(), fieldSerdes, numKeys,
+                harness.getBoomFilterFalsePositiveRate(), harness.getMergePolicy(), harness.getOperationTracker(),
+                harness.getIOScheduler(), harness.getIOOperationCallbackProvider());
     }
 
     @Override
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeLifecycleTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeLifecycleTest.java
index 43d38bc..639fd47 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeLifecycleTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeLifecycleTest.java
@@ -1,8 +1,21 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.btree;
 
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.io.FileReference;
-import edu.uci.ics.hyracks.api.io.IODeviceHandle;
 import edu.uci.ics.hyracks.dataflow.common.data.marshalling.IntegerSerializerDeserializer;
 import edu.uci.ics.hyracks.storage.am.btree.OrderedIndexTestUtils;
 import edu.uci.ics.hyracks.storage.am.common.AbstractIndexLifecycleTest;
@@ -26,10 +39,8 @@
     @Override
     protected boolean persistentStateExists() throws Exception {
         // make sure all of the directories exist
-        for (IODeviceHandle handle : harness.getIOManager().getIODevices()) {
-            if (!new FileReference(handle, harness.getFileReference().getFile().getPath()).getFile().exists()) {
-                return false;
-            }
+        if (!new FileReference(harness.getFileReference().getFile()).getFile().exists()) {
+            return false;
         }
         return true;
     }
@@ -42,19 +53,21 @@
     @Override
     public void setup() throws Exception {
         harness.setUp();
-        testCtx = LSMBTreeTestContext.create(harness.getMemBufferCache(), harness.getMemFreePageManager(),
-                harness.getIOManager(), harness.getFileReference(), harness.getDiskBufferCache(),
-                harness.getDiskFileMapProvider(), fieldSerdes, fieldSerdes.length,
-                harness.getBoomFilterFalsePositiveRate(), harness.getMergePolicy(),
-                harness.getOperationTrackerFactory(), harness.getIOScheduler(),
-                harness.getIOOperationCallbackProvider(), harness.getIODeviceId());
+        testCtx = LSMBTreeTestContext.create(harness.getVirtualBufferCache(), harness.getFileReference(),
+                harness.getDiskBufferCache(), harness.getDiskFileMapProvider(), fieldSerdes, fieldSerdes.length,
+                harness.getBoomFilterFalsePositiveRate(), harness.getMergePolicy(), harness.getOperationTracker(),
+                harness.getIOScheduler(), harness.getIOOperationCallbackProvider());
         index = testCtx.getIndex();
     }
 
     @Override
     public void tearDown() throws Exception {
-        index.deactivate();
-        index.destroy();
+        try {
+            index.deactivate();
+        } catch (Exception e) {
+        } finally {
+            index.destroy();
+        }
         harness.tearDown();
     }
 
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeMergeTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeMergeTest.java
index 0ea2af2..e3c86df 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeMergeTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeMergeTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -50,11 +50,10 @@
     @Override
     protected OrderedIndexTestContext createTestContext(ISerializerDeserializer[] fieldSerdes, int numKeys,
             BTreeLeafFrameType leafType) throws Exception {
-        return LSMBTreeTestContext.create(harness.getMemBufferCache(), harness.getMemFreePageManager(),
-                harness.getIOManager(), harness.getFileReference(), harness.getDiskBufferCache(),
-                harness.getDiskFileMapProvider(), fieldSerdes, numKeys, harness.getBoomFilterFalsePositiveRate(),
-                harness.getMergePolicy(), harness.getOperationTrackerFactory(), harness.getIOScheduler(),
-                harness.getIOOperationCallbackProvider(), harness.getIODeviceId());
+        return LSMBTreeTestContext.create(harness.getVirtualBufferCache(), harness.getFileReference(),
+                harness.getDiskBufferCache(), harness.getDiskFileMapProvider(), fieldSerdes, numKeys,
+                harness.getBoomFilterFalsePositiveRate(), harness.getMergePolicy(), harness.getOperationTracker(),
+                harness.getIOScheduler(), harness.getIOOperationCallbackProvider());
     }
 
     @Override
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeMergeTestDriver.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeMergeTestDriver.java
index 8b02a8e..f7aa7f4 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeMergeTestDriver.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeMergeTestDriver.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -57,9 +57,15 @@
         for (int i = 0; i < maxTreesToMerge; i++) {
             for (int j = 0; j < i; j++) {
                 if (fieldSerdes[0] instanceof IntegerSerializerDeserializer) {
-                    orderedIndexTestUtils.bulkLoadIntTuples(ctx, numTuplesToInsert, getRandom());
+                    orderedIndexTestUtils.insertIntTuples(ctx, numTuplesToInsert, getRandom());
+                    // Deactivate and the re-activate the index to force it flush its in memory component
+                    ctx.getIndex().deactivate();
+                    ctx.getIndex().activate();
                 } else if (fieldSerdes[0] instanceof UTF8StringSerializerDeserializer) {
-                    orderedIndexTestUtils.bulkLoadStringTuples(ctx, numTuplesToInsert, getRandom());
+                    orderedIndexTestUtils.insertStringTuples(ctx, numTuplesToInsert, getRandom());
+                    // Deactivate and the re-activate the index to force it flush its in memory component
+                    ctx.getIndex().deactivate();
+                    ctx.getIndex().activate();
                 }
             }
 
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeModificationOperationCallbackTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeModificationOperationCallbackTest.java
index 901a31d..77b65ca 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeModificationOperationCallbackTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeModificationOperationCallbackTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -26,7 +26,7 @@
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndexAccessor;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.BlockingIOOperationCallbackWrapper;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.NoOpIOOperationCallback;
-import edu.uci.ics.hyracks.storage.am.lsm.common.impls.NoOpOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.impls.NoOpOperationTrackerProvider;
 
 public class LSMBTreeModificationOperationCallbackTest extends AbstractModificationOperationCallbackTest {
     private static final int NUM_TUPLES = 11;
@@ -42,13 +42,13 @@
 
     @Override
     protected void createIndexInstance() throws Exception {
-        index = LSMBTreeUtils.createLSMTree(harness.getMemBufferCache(), harness.getMemFreePageManager(),
-                harness.getIOManager(), harness.getFileReference(), harness.getDiskBufferCache(),
-                harness.getDiskFileMapProvider(), SerdeUtils.serdesToTypeTraits(keySerdes),
+        index = LSMBTreeUtils.createLSMTree(harness.getVirtualBufferCache(), harness.getFileReference(),
+                harness.getDiskBufferCache(), harness.getDiskFileMapProvider(),
+                SerdeUtils.serdesToTypeTraits(keySerdes),
                 SerdeUtils.serdesToComparatorFactories(keySerdes, keySerdes.length), bloomFilterKeyFields,
                 harness.getBoomFilterFalsePositiveRate(), harness.getMergePolicy(),
-                NoOpOperationTrackerFactory.INSTANCE, harness.getIOScheduler(),
-                harness.getIOOperationCallbackProvider(), harness.getIODeviceId());
+                NoOpOperationTrackerProvider.INSTANCE.getOperationTracker(null), harness.getIOScheduler(),
+                harness.getIOOperationCallbackProvider());
     }
 
     @Override
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeMultiBulkLoadTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeMultiBulkLoadTest.java
index ac8290e..a7c8b81 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeMultiBulkLoadTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeMultiBulkLoadTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -52,15 +52,14 @@
     @Override
     protected OrderedIndexTestContext createTestContext(ISerializerDeserializer[] fieldSerdes, int numKeys,
             BTreeLeafFrameType leafType) throws Exception {
-        return LSMBTreeTestContext.create(harness.getMemBufferCache(), harness.getMemFreePageManager(),
-                harness.getIOManager(), harness.getFileReference(), harness.getDiskBufferCache(),
-                harness.getDiskFileMapProvider(), fieldSerdes, numKeys, harness.getBoomFilterFalsePositiveRate(),
-                harness.getMergePolicy(), harness.getOperationTrackerFactory(), harness.getIOScheduler(),
-                harness.getIOOperationCallbackProvider(), harness.getIODeviceId());
+        return LSMBTreeTestContext.create(harness.getVirtualBufferCache(), harness.getFileReference(),
+                harness.getDiskBufferCache(), harness.getDiskFileMapProvider(), fieldSerdes, numKeys,
+                harness.getBoomFilterFalsePositiveRate(), harness.getMergePolicy(), harness.getOperationTracker(),
+                harness.getIOScheduler(), harness.getIOOperationCallbackProvider());
     }
 
     @Override
     protected Random getRandom() {
         return harness.getRandom();
     }
-}
+}
\ No newline at end of file
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeSearchOperationCallbackTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeSearchOperationCallbackTest.java
index 15adc29..e15e80a 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeSearchOperationCallbackTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeSearchOperationCallbackTest.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.btree;
 
 import java.util.HashSet;
@@ -22,7 +36,7 @@
 import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallback;
 import edu.uci.ics.hyracks.storage.am.lsm.btree.util.LSMBTreeTestHarness;
 import edu.uci.ics.hyracks.storage.am.lsm.btree.util.LSMBTreeUtils;
-import edu.uci.ics.hyracks.storage.am.lsm.common.impls.NoOpOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.impls.NoOpOperationTrackerProvider;
 
 public class LSMBTreeSearchOperationCallbackTest extends AbstractSearchOperationCallbackTest {
     private final LSMBTreeTestHarness harness;
@@ -35,13 +49,13 @@
 
     @Override
     protected void createIndexInstance() throws Exception {
-        index = LSMBTreeUtils.createLSMTree(harness.getMemBufferCache(), harness.getMemFreePageManager(),
-                harness.getIOManager(), harness.getFileReference(), harness.getDiskBufferCache(),
-                harness.getDiskFileMapProvider(), SerdeUtils.serdesToTypeTraits(keySerdes),
+        index = LSMBTreeUtils.createLSMTree(harness.getVirtualBufferCache(), harness.getFileReference(),
+                harness.getDiskBufferCache(), harness.getDiskFileMapProvider(),
+                SerdeUtils.serdesToTypeTraits(keySerdes),
                 SerdeUtils.serdesToComparatorFactories(keySerdes, keySerdes.length), bloomFilterKeyFields,
                 harness.getBoomFilterFalsePositiveRate(), harness.getMergePolicy(),
-                NoOpOperationTrackerFactory.INSTANCE, harness.getIOScheduler(),
-                harness.getIOOperationCallbackProvider(), harness.getIODeviceId());
+                NoOpOperationTrackerProvider.INSTANCE.getOperationTracker(null), harness.getIOScheduler(),
+                harness.getIOOperationCallbackProvider());
     }
 
     @Override
@@ -208,11 +222,15 @@
             try {
                 insertTaskStarted = true;
 
-                // bulkload [101, 150] & [151, 200] as two separate disk components 
+                // bulkload [101, 150] and then insert [151, 200] and make sure it reaches disk, thus we will have two separate disk components 
                 // insert [50, 100] & [301, 350] to the in-memory component
                 // delete tuple 151
                 bulkloadIntTupleRange(101, 150);
-                bulkloadIntTupleRange(151, 200);
+                insertIntTupleRange(151, 200);
+                // Deactivate and the re-activate the index to force it flush its in memory component
+                index.deactivate();
+                index.activate();
+
                 insertIntTupleRange(50, 100);
                 insertIntTupleRange(301, 350);
                 int tupleTobeDeletedValue = 151;
@@ -256,7 +274,7 @@
                 throw new IllegalArgumentException("Invalid range: [" + begin + ", " + end + "]");
             }
 
-            IIndexBulkLoader bulkloader = index.createBulkLoader(1.0f, false, end - begin);
+            IIndexBulkLoader bulkloader = index.createBulkLoader(1.0f, false, end - begin, true);
             for (int i = begin; i <= end; i++) {
                 TupleUtils.createIntegerTuple(builder, tuple, i);
                 bulkloader.add(tuple);
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeUpdateTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeUpdateTest.java
index cc2db11..db221a2 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeUpdateTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/LSMBTreeUpdateTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -51,11 +51,10 @@
     @Override
     protected OrderedIndexTestContext createTestContext(ISerializerDeserializer[] fieldSerdes, int numKeys,
             BTreeLeafFrameType leafType) throws Exception {
-        return LSMBTreeTestContext.create(harness.getMemBufferCache(), harness.getMemFreePageManager(),
-                harness.getIOManager(), harness.getFileReference(), harness.getDiskBufferCache(),
-                harness.getDiskFileMapProvider(), fieldSerdes, numKeys, harness.getBoomFilterFalsePositiveRate(),
-                harness.getMergePolicy(), harness.getOperationTrackerFactory(), harness.getIOScheduler(),
-                harness.getIOOperationCallbackProvider(), harness.getIODeviceId());
+        return LSMBTreeTestContext.create(harness.getVirtualBufferCache(), harness.getFileReference(),
+                harness.getDiskBufferCache(), harness.getDiskFileMapProvider(), fieldSerdes, numKeys,
+                harness.getBoomFilterFalsePositiveRate(), harness.getMergePolicy(), harness.getOperationTracker(),
+                harness.getIOScheduler(), harness.getIOOperationCallbackProvider());
     }
 
     @Override
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/multithread/LSMBTreeMultiThreadTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/multithread/LSMBTreeMultiThreadTest.java
index d56ff5b..9dfa713 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/multithread/LSMBTreeMultiThreadTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/multithread/LSMBTreeMultiThreadTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -50,12 +50,10 @@
     @Override
     protected ITreeIndex createIndex(ITypeTraits[] typeTraits, IBinaryComparatorFactory[] cmpFactories,
             int[] bloomFilterKeyFields) throws TreeIndexException {
-        return LSMBTreeUtils.createLSMTree(harness.getMemBufferCache(), harness.getMemFreePageManager(),
-                harness.getIOManager(), harness.getFileReference(), harness.getDiskBufferCache(),
-                harness.getDiskFileMapProvider(), typeTraits, cmpFactories, bloomFilterKeyFields,
-                harness.getBoomFilterFalsePositiveRate(), harness.getMergePolicy(),
-                harness.getOperationTrackerFactory(), harness.getIOScheduler(),
-                harness.getIOOperationCallbackProvider(), harness.getIODeviceId());
+        return LSMBTreeUtils.createLSMTree(harness.getVirtualBufferCache(), harness.getFileReference(),
+                harness.getDiskBufferCache(), harness.getDiskFileMapProvider(), typeTraits, cmpFactories,
+                bloomFilterKeyFields, harness.getBoomFilterFalsePositiveRate(), harness.getMergePolicy(),
+                harness.getOperationTracker(), harness.getIOScheduler(), harness.getIOOperationCallbackProvider());
     }
 
     @Override
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/multithread/LSMBTreeTestWorker.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/multithread/LSMBTreeTestWorker.java
index d006d1e..8a37b4e 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/multithread/LSMBTreeTestWorker.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/multithread/LSMBTreeTestWorker.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/multithread/LSMBTreeTestWorkerFactory.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/multithread/LSMBTreeTestWorkerFactory.java
index 52083a4..2015a66 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/multithread/LSMBTreeTestWorkerFactory.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/multithread/LSMBTreeTestWorkerFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/BTreeBulkLoadRunner.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/BTreeBulkLoadRunner.java
index 69e2b58..52cbddb 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/BTreeBulkLoadRunner.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/BTreeBulkLoadRunner.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -37,7 +37,7 @@
     public long runExperiment(DataGenThread dataGen, int numThreads) throws Exception {
         btree.create();
         long start = System.currentTimeMillis();
-        IIndexBulkLoader bulkLoader = btree.createBulkLoader(1.0f, false, 0L);
+        IIndexBulkLoader bulkLoader = btree.createBulkLoader(1.0f, false, 0L, true);
         for (int i = 0; i < numBatches; i++) {
             TupleBatch batch = dataGen.tupleBatchQueue.take();
             for (int j = 0; j < batch.size(); j++) {
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/BTreePageSizePerf.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/BTreePageSizePerf.java
index 7e0514b..377fe17 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/BTreePageSizePerf.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/BTreePageSizePerf.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/BTreeRunner.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/BTreeRunner.java
index 8658919..58a82c9 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/BTreeRunner.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/BTreeRunner.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/ConcurrentSkipListRunner.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/ConcurrentSkipListRunner.java
index 8f44966..61c6ad3 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/ConcurrentSkipListRunner.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/ConcurrentSkipListRunner.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/IExperimentRunner.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/IExperimentRunner.java
index 0ea3a71..42fae67 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/IExperimentRunner.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/IExperimentRunner.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/InMemoryBTreeRunner.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/InMemoryBTreeRunner.java
index 1b453b7..e91b7d3 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/InMemoryBTreeRunner.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/InMemoryBTreeRunner.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -30,18 +30,15 @@
 import edu.uci.ics.hyracks.storage.am.common.api.IFreePageManager;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexAccessor;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexFrameFactory;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexMetaDataFrameFactory;
 import edu.uci.ics.hyracks.storage.am.common.api.TreeIndexException;
 import edu.uci.ics.hyracks.storage.am.common.datagen.DataGenThread;
 import edu.uci.ics.hyracks.storage.am.common.datagen.TupleBatch;
-import edu.uci.ics.hyracks.storage.am.common.frames.LIFOMetaDataFrameFactory;
 import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallback;
 import edu.uci.ics.hyracks.storage.am.common.tuples.TypeAwareTupleWriterFactory;
-import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.InMemoryBufferCache;
-import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.InMemoryFreePageManager;
+import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.VirtualFreePageManager;
+import edu.uci.ics.hyracks.storage.am.lsm.common.impls.VirtualBufferCache;
 import edu.uci.ics.hyracks.storage.common.buffercache.HeapBufferAllocator;
 import edu.uci.ics.hyracks.storage.common.buffercache.IBufferCache;
-import edu.uci.ics.hyracks.storage.common.buffercache.ICacheMemoryAllocator;
 import edu.uci.ics.hyracks.storage.common.file.TransientFileMapManager;
 
 public class InMemoryBTreeRunner extends Thread implements IExperimentRunner {
@@ -66,13 +63,11 @@
 
     protected void init(int pageSize, int numPages, ITypeTraits[] typeTraits, IBinaryComparatorFactory[] cmpFactories)
             throws HyracksDataException, BTreeException {
-        ICacheMemoryAllocator allocator = new HeapBufferAllocator();
-        bufferCache = new InMemoryBufferCache(allocator, pageSize, numPages, new TransientFileMapManager());
+        bufferCache = new VirtualBufferCache(new HeapBufferAllocator(), pageSize, numPages);
         TypeAwareTupleWriterFactory tupleWriterFactory = new TypeAwareTupleWriterFactory(typeTraits);
         ITreeIndexFrameFactory leafFrameFactory = new BTreeNSMLeafFrameFactory(tupleWriterFactory);
         ITreeIndexFrameFactory interiorFrameFactory = new BTreeNSMInteriorFrameFactory(tupleWriterFactory);
-        ITreeIndexMetaDataFrameFactory metaFrameFactory = new LIFOMetaDataFrameFactory();
-        IFreePageManager freePageManager = new InMemoryFreePageManager(bufferCache.getNumPages(), metaFrameFactory);
+        IFreePageManager freePageManager = new VirtualFreePageManager(bufferCache.getNumPages());
         btree = new BTree(bufferCache, new TransientFileMapManager(), freePageManager, interiorFrameFactory,
                 leafFrameFactory, cmpFactories, typeTraits.length, file);
     }
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/InMemorySortRunner.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/InMemorySortRunner.java
index 53fbd88..3cca7ed 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/InMemorySortRunner.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/InMemorySortRunner.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/LSMTreeRunner.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/LSMTreeRunner.java
index 7e54003..fc6642c 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/LSMTreeRunner.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/LSMTreeRunner.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -26,27 +26,23 @@
 import edu.uci.ics.hyracks.api.io.FileReference;
 import edu.uci.ics.hyracks.control.nc.io.IOManager;
 import edu.uci.ics.hyracks.storage.am.btree.exceptions.BTreeException;
-import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndexAccessor;
 import edu.uci.ics.hyracks.storage.am.common.api.TreeIndexException;
 import edu.uci.ics.hyracks.storage.am.common.datagen.DataGenThread;
 import edu.uci.ics.hyracks.storage.am.common.datagen.TupleBatch;
-import edu.uci.ics.hyracks.storage.am.common.frames.LIFOMetaDataFrameFactory;
 import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallback;
 import edu.uci.ics.hyracks.storage.am.lsm.btree.impls.LSMBTree;
 import edu.uci.ics.hyracks.storage.am.lsm.btree.util.LSMBTreeUtils;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.IInMemoryBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationScheduler;
-import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.InMemoryBufferCache;
-import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.InMemoryFreePageManager;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.NoMergePolicy;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.NoOpIOOperationCallback;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.SynchronousScheduler;
-import edu.uci.ics.hyracks.storage.am.lsm.common.impls.ThreadCountingOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.impls.ThreadCountingTracker;
+import edu.uci.ics.hyracks.storage.am.lsm.common.impls.VirtualBufferCache;
 import edu.uci.ics.hyracks.storage.common.buffercache.HeapBufferAllocator;
 import edu.uci.ics.hyracks.storage.common.buffercache.IBufferCache;
 import edu.uci.ics.hyracks.storage.common.file.IFileMapProvider;
-import edu.uci.ics.hyracks.storage.common.file.TransientFileMapManager;
 import edu.uci.ics.hyracks.test.support.TestStorageManagerComponentHolder;
 import edu.uci.ics.hyracks.test.support.TestUtils;
 
@@ -92,15 +88,12 @@
         ioDeviceId = 0;
         IFileMapProvider fmp = TestStorageManagerComponentHolder.getFileMapProvider(ctx);
 
-        IInMemoryBufferCache memBufferCache = new InMemoryBufferCache(new HeapBufferAllocator(), inMemPageSize,
-                inMemNumPages, new TransientFileMapManager());
-        IInMemoryFreePageManager memFreePageManager = new InMemoryFreePageManager(inMemNumPages,
-                new LIFOMetaDataFrameFactory());
+        IVirtualBufferCache virtualBufferCache = new VirtualBufferCache(new HeapBufferAllocator(), inMemPageSize,
+                inMemNumPages);
         this.ioScheduler = SynchronousScheduler.INSTANCE;
-        lsmtree = LSMBTreeUtils.createLSMTree(memBufferCache, memFreePageManager, ioManager, file, bufferCache, fmp,
-                typeTraits, cmpFactories, bloomFilterKeyFields, bloomFilterFalsePositiveRate, NoMergePolicy.INSTANCE,
-                ThreadCountingOperationTrackerFactory.INSTANCE, ioScheduler, NoOpIOOperationCallback.INSTANCE,
-                ioDeviceId);
+        lsmtree = LSMBTreeUtils.createLSMTree(virtualBufferCache, file, bufferCache, fmp, typeTraits, cmpFactories,
+                bloomFilterKeyFields, bloomFilterFalsePositiveRate, NoMergePolicy.INSTANCE,
+                new ThreadCountingTracker(), ioScheduler, NoOpIOOperationCallback.INSTANCE);
     }
 
     @Override
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/PerfExperiment.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/PerfExperiment.java
index c842191..641362e 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/PerfExperiment.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/perf/PerfExperiment.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/tuples/LSMBTreeTuplesTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/tuples/LSMBTreeTuplesTest.java
index ce6c27c..438c035 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/tuples/LSMBTreeTuplesTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/tuples/LSMBTreeTuplesTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/util/LSMBTreeTestContext.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/util/LSMBTreeTestContext.java
index 45cf417..ab78ee6 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/util/LSMBTreeTestContext.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/util/LSMBTreeTestContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -22,18 +22,16 @@
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.api.io.FileReference;
-import edu.uci.ics.hyracks.control.nc.io.IOManager;
 import edu.uci.ics.hyracks.dataflow.common.util.SerdeUtils;
 import edu.uci.ics.hyracks.storage.am.btree.OrderedIndexTestContext;
 import edu.uci.ics.hyracks.storage.am.common.CheckTuple;
-import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndex;
 import edu.uci.ics.hyracks.storage.am.lsm.btree.impls.LSMBTree;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.IInMemoryBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationScheduler;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicy;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTracker;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
 import edu.uci.ics.hyracks.storage.common.buffercache.IBufferCache;
 import edu.uci.ics.hyracks.storage.common.file.IFileMapProvider;
 
@@ -64,22 +62,20 @@
         upsertCheckTuple(checkTuple, checkTuples);
     }
 
-    public static LSMBTreeTestContext create(IInMemoryBufferCache memBufferCache,
-            IInMemoryFreePageManager memFreePageManager, IOManager ioManager, FileReference file,
+    public static LSMBTreeTestContext create(IVirtualBufferCache virtualBufferCache, FileReference file,
             IBufferCache diskBufferCache, IFileMapProvider diskFileMapProvider, ISerializerDeserializer[] fieldSerdes,
             int numKeyFields, double bloomFilterFalsePositiveRate, ILSMMergePolicy mergePolicy,
-            ILSMOperationTrackerFactory opTrackerFactory, ILSMIOOperationScheduler ioScheduler,
-            ILSMIOOperationCallbackProvider ioOpCallbackProvider, int ioDeviceId) throws Exception {
+            ILSMOperationTracker opTracker, ILSMIOOperationScheduler ioScheduler,
+            ILSMIOOperationCallbackProvider ioOpCallbackProvider) throws Exception {
         ITypeTraits[] typeTraits = SerdeUtils.serdesToTypeTraits(fieldSerdes);
         IBinaryComparatorFactory[] cmpFactories = SerdeUtils.serdesToComparatorFactories(fieldSerdes, numKeyFields);
         int[] bloomFilterKeyFields = new int[numKeyFields];
         for (int i = 0; i < numKeyFields; ++i) {
             bloomFilterKeyFields[i] = i;
         }
-        LSMBTree lsmTree = LSMBTreeUtils.createLSMTree(memBufferCache, memFreePageManager, ioManager, file,
-                diskBufferCache, diskFileMapProvider, typeTraits, cmpFactories, bloomFilterKeyFields,
-                bloomFilterFalsePositiveRate, mergePolicy, opTrackerFactory, ioScheduler, ioOpCallbackProvider,
-                ioDeviceId);
+        LSMBTree lsmTree = LSMBTreeUtils.createLSMTree(virtualBufferCache, file, diskBufferCache, diskFileMapProvider,
+                typeTraits, cmpFactories, bloomFilterKeyFields, bloomFilterFalsePositiveRate, mergePolicy, opTracker,
+                ioScheduler, ioOpCallbackProvider);
         LSMBTreeTestContext testCtx = new LSMBTreeTestContext(fieldSerdes, lsmTree);
         return testCtx;
     }
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/util/LSMBTreeTestHarness.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/util/LSMBTreeTestHarness.java
index 066f57b..e643cf9 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/util/LSMBTreeTestHarness.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/btree/util/LSMBTreeTestHarness.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -29,24 +29,20 @@
 import edu.uci.ics.hyracks.api.io.IODeviceHandle;
 import edu.uci.ics.hyracks.control.nc.io.IOManager;
 import edu.uci.ics.hyracks.storage.am.btree.frames.BTreeLeafFrameType;
-import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
-import edu.uci.ics.hyracks.storage.am.common.frames.LIFOMetaDataFrameFactory;
 import edu.uci.ics.hyracks.storage.am.config.AccessMethodTestsConfig;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.IInMemoryBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationScheduler;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicy;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
-import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.InMemoryBufferCache;
-import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.InMemoryFreePageManager;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTracker;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.NoMergePolicy;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.NoOpIOOperationCallback;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.SynchronousScheduler;
-import edu.uci.ics.hyracks.storage.am.lsm.common.impls.ThreadCountingOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.impls.ThreadCountingTracker;
+import edu.uci.ics.hyracks.storage.am.lsm.common.impls.VirtualBufferCache;
 import edu.uci.ics.hyracks.storage.common.buffercache.HeapBufferAllocator;
 import edu.uci.ics.hyracks.storage.common.buffercache.IBufferCache;
 import edu.uci.ics.hyracks.storage.common.file.IFileMapProvider;
-import edu.uci.ics.hyracks.storage.common.file.TransientFileMapManager;
 import edu.uci.ics.hyracks.test.support.TestStorageManagerComponentHolder;
 import edu.uci.ics.hyracks.test.support.TestUtils;
 
@@ -69,12 +65,11 @@
     protected int ioDeviceId;
     protected IBufferCache diskBufferCache;
     protected IFileMapProvider diskFileMapProvider;
-    protected IInMemoryBufferCache memBufferCache;
-    protected IInMemoryFreePageManager memFreePageManager;
+    protected IVirtualBufferCache virtualBufferCache;
     protected IHyracksTaskContext ctx;
     protected ILSMIOOperationScheduler ioScheduler;
     protected ILSMMergePolicy mergePolicy;
-    protected ILSMOperationTrackerFactory opTrackerFactory;
+    protected ILSMOperationTracker opTracker;
     protected ILSMIOOperationCallbackProvider ioOpCallbackProvider;
 
     protected final Random rnd = new Random();
@@ -93,7 +88,7 @@
         this.bloomFilterFalsePositiveRate = AccessMethodTestsConfig.LSM_BTREE_BLOOMFILTER_FALSE_POSITIVE_RATE;
         this.ioScheduler = SynchronousScheduler.INSTANCE;
         this.mergePolicy = NoMergePolicy.INSTANCE;
-        this.opTrackerFactory = ThreadCountingOperationTrackerFactory.INSTANCE;
+        this.opTracker = new ThreadCountingTracker();
         this.ioOpCallbackProvider = NoOpIOOperationCallback.INSTANCE;
     }
 
@@ -108,42 +103,40 @@
         this.bloomFilterFalsePositiveRate = bloomFilterFalsePositiveRate;
         this.ioScheduler = SynchronousScheduler.INSTANCE;
         this.mergePolicy = NoMergePolicy.INSTANCE;
-        this.opTrackerFactory = ThreadCountingOperationTrackerFactory.INSTANCE;
+        this.opTracker = new ThreadCountingTracker();
     }
 
     public void setUp() throws HyracksException {
-        onDiskDir = "lsm_btree_" + simpleDateFormat.format(new Date()) + sep;
+        ioManager = TestStorageManagerComponentHolder.getIOManager();
+        ioDeviceId = 0;
+        onDiskDir = ioManager.getIODevices().get(ioDeviceId).getPath() + sep + "lsm_btree_"
+                + simpleDateFormat.format(new Date()) + sep;
         file = new FileReference(new File(onDiskDir));
         ctx = TestUtils.create(getHyracksFrameSize());
         TestStorageManagerComponentHolder.init(diskPageSize, diskNumPages, diskMaxOpenFiles);
         diskBufferCache = TestStorageManagerComponentHolder.getBufferCache(ctx);
         diskFileMapProvider = TestStorageManagerComponentHolder.getFileMapProvider(ctx);
-        memBufferCache = new InMemoryBufferCache(new HeapBufferAllocator(), memPageSize, memNumPages,
-                new TransientFileMapManager());
-        memFreePageManager = new InMemoryFreePageManager(memNumPages, new LIFOMetaDataFrameFactory());
-        ioManager = TestStorageManagerComponentHolder.getIOManager();
-        ioDeviceId = 0;
+        virtualBufferCache = new VirtualBufferCache(new HeapBufferAllocator(), memPageSize, memNumPages);
         rnd.setSeed(RANDOM_SEED);
     }
 
     public void tearDown() throws HyracksDataException {
         diskBufferCache.close();
-        for (IODeviceHandle dev : ioManager.getIODevices()) {
-            File dir = new File(dev.getPath(), onDiskDir);
-            FilenameFilter filter = new FilenameFilter() {
-                public boolean accept(File dir, String name) {
-                    return !name.startsWith(".");
-                }
-            };
-            String[] files = dir.list(filter);
-            if (files != null) {
-                for (String fileName : files) {
-                    File file = new File(dir.getPath() + File.separator + fileName);
-                    file.delete();
-                }
+        IODeviceHandle dev = ioManager.getIODevices().get(ioDeviceId);
+        File dir = new File(dev.getPath(), onDiskDir);
+        FilenameFilter filter = new FilenameFilter() {
+            public boolean accept(File dir, String name) {
+                return !name.startsWith(".");
             }
-            dir.delete();
+        };
+        String[] files = dir.list(filter);
+        if (files != null) {
+            for (String fileName : files) {
+                File file = new File(dir.getPath() + File.separator + fileName);
+                file.delete();
+            }
         }
+        dir.delete();
     }
 
     public int getDiskPageSize() {
@@ -186,18 +179,14 @@
         return diskFileMapProvider;
     }
 
-    public IInMemoryBufferCache getMemBufferCache() {
-        return memBufferCache;
+    public IVirtualBufferCache getVirtualBufferCache() {
+        return virtualBufferCache;
     }
 
     public double getBoomFilterFalsePositiveRate() {
         return bloomFilterFalsePositiveRate;
     }
 
-    public IInMemoryFreePageManager getMemFreePageManager() {
-        return memFreePageManager;
-    }
-
     public IHyracksTaskContext getHyracksTastContext() {
         return ctx;
     }
@@ -214,8 +203,8 @@
         return ioScheduler;
     }
 
-    public ILSMOperationTrackerFactory getOperationTrackerFactory() {
-        return opTrackerFactory;
+    public ILSMOperationTracker getOperationTracker() {
+        return opTracker;
     }
 
     public ILSMMergePolicy getMergePolicy() {
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/pom.xml b/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/pom.xml
index 7508f7c..b180994 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/pom.xml
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-storage-am-lsm-common-test</artifactId>
@@ -5,7 +19,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks-tests</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -25,14 +39,14 @@
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-storage-am-lsm-common</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-test-support</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/common/DummyLSMIndexFileManager.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/common/DummyLSMIndexFileManager.java
index d41ddd4..e4dd974 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/common/DummyLSMIndexFileManager.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/common/DummyLSMIndexFileManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -21,8 +21,6 @@
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.api.io.FileReference;
-import edu.uci.ics.hyracks.api.io.IIOManager;
-import edu.uci.ics.hyracks.api.io.IODeviceHandle;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndex;
 import edu.uci.ics.hyracks.storage.am.common.api.IndexException;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.AbstractLSMIndexFileManager;
@@ -31,15 +29,15 @@
 
 public class DummyLSMIndexFileManager extends AbstractLSMIndexFileManager {
 
-    public DummyLSMIndexFileManager(IIOManager ioManager, IFileMapProvider fileMapProvider, FileReference file,
-            TreeIndexFactory<? extends ITreeIndex> treeFactory, int ioDeviceId) {
-        super(ioManager, fileMapProvider, file, treeFactory, ioDeviceId);
+    public DummyLSMIndexFileManager(IFileMapProvider fileMapProvider, FileReference file,
+            TreeIndexFactory<? extends ITreeIndex> treeFactory) {
+        super(fileMapProvider, file, treeFactory);
     }
 
-    protected void cleanupAndGetValidFilesInternal(IODeviceHandle dev, FilenameFilter filter,
+    protected void cleanupAndGetValidFilesInternal(FilenameFilter filter,
             TreeIndexFactory<? extends ITreeIndex> treeFactory, ArrayList<ComparableFileName> allFiles)
             throws HyracksDataException, IndexException {
-        File dir = new File(dev.getPath(), baseDir);
+        File dir = new File(baseDir);
         String[] files = dir.list(filter);
         for (String fileName : files) {
             File file = new File(dir.getPath() + File.separator + fileName);
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/common/DummyTreeFactory.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/common/DummyTreeFactory.java
index 8b22771..4a88417 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/common/DummyTreeFactory.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/common/DummyTreeFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/common/InMemoryBufferCacheTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/common/InMemoryBufferCacheTest.java
deleted file mode 100644
index adba93d..0000000
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/common/InMemoryBufferCacheTest.java
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * Copyright 2009-2010 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package edu.uci.ics.hyracks.storage.am.lsm.common;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.fail;
-
-import java.util.HashSet;
-
-import org.junit.Test;
-
-import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.InMemoryBufferCache;
-import edu.uci.ics.hyracks.storage.common.buffercache.HeapBufferAllocator;
-import edu.uci.ics.hyracks.storage.common.buffercache.ICachedPage;
-import edu.uci.ics.hyracks.storage.common.file.BufferedFileHandle;
-import edu.uci.ics.hyracks.storage.common.file.TransientFileMapManager;
-
-public class InMemoryBufferCacheTest {
-    private static final int PAGE_SIZE = 256;
-    private static final int NUM_PAGES = 100;
-    private HashSet<ICachedPage> pinnedPages = new HashSet<ICachedPage>();
-
-    @Test
-    public void test01() throws Exception {
-        InMemoryBufferCache memBufferCache = new InMemoryBufferCache(new HeapBufferAllocator(), PAGE_SIZE, NUM_PAGES,
-                new TransientFileMapManager());
-        memBufferCache.open();
-        int dummyFileId = 0;
-        // Pin all pages, and make sure they return unique ICachedPages.
-        // We expect no overflow pages.
-        for (int i = 0; i < NUM_PAGES; i++) {
-            ICachedPage page = memBufferCache.pin(BufferedFileHandle.getDiskPageId(dummyFileId, i), false);
-            if (pinnedPages.contains(page)) {
-                fail("Id collision for ICachedPage, caused by id: " + i);
-            }
-            pinnedPages.add(page);
-            assertEquals(0, memBufferCache.getNumOverflowPages());
-        }
-        // Pin pages above capacity. We expect to be given new overflow pages.
-        // Going above capacity should be very rare, but nevertheless succeed.
-        for (int i = 0; i < 100; i++) {
-            ICachedPage page = memBufferCache.pin(BufferedFileHandle.getDiskPageId(dummyFileId, i + NUM_PAGES), false);
-            if (pinnedPages.contains(page)) {
-                fail("Id collision for ICachedPage, caused by overflow id: " + i);
-            }
-            pinnedPages.add(page);
-            assertEquals(i + 1, memBufferCache.getNumOverflowPages());
-        }
-        memBufferCache.close();
-    }
-}
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/common/InMemoryFreePageManagerTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/common/InMemoryFreePageManagerTest.java
deleted file mode 100644
index bd09a3f..0000000
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/common/InMemoryFreePageManagerTest.java
+++ /dev/null
@@ -1,65 +0,0 @@
-/*
- * Copyright 2009-2010 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package edu.uci.ics.hyracks.storage.am.lsm.common;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
-
-import org.junit.Test;
-
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexMetaDataFrameFactory;
-import edu.uci.ics.hyracks.storage.am.common.frames.LIFOMetaDataFrameFactory;
-import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.InMemoryFreePageManager;
-
-public class InMemoryFreePageManagerTest {
-
-    private final int NUM_PAGES = 100;
-    
-    private void testInMemoryFreePageManager(InMemoryFreePageManager memFreePageManager) throws HyracksDataException {
-        // The first two pages are reserved for the BTree's metadata page and
-        // root page.
-        // The "actual" capacity is therefore numPages - 2.
-        int capacity = memFreePageManager.getCapacity();
-        assertEquals(capacity, NUM_PAGES - 2);
-        for (int i = 0; i < capacity; i++) {
-            int pageId = memFreePageManager.getFreePage(null);
-            // The free pages start from page 2;
-            assertEquals(i + 2, pageId);
-            assertFalse(memFreePageManager.isFull());
-        }
-        // Start asking for 100 pages above the capacity.
-        // Asking for pages above the capacity should be very rare, but
-        // nevertheless succeed.
-        // We expect isFull() to return true.
-        for (int i = 0; i < 100; i++) {
-            int pageId = memFreePageManager.getFreePage(null);
-            assertEquals(capacity + i + 2, pageId);
-            assertTrue(memFreePageManager.isFull());
-        }
-    }
-    
-    @Test
-    public void test01() throws HyracksDataException {
-        ITreeIndexMetaDataFrameFactory metaFrameFactory = new LIFOMetaDataFrameFactory();
-        InMemoryFreePageManager memFreePageManager = new InMemoryFreePageManager(NUM_PAGES, metaFrameFactory);
-        testInMemoryFreePageManager(memFreePageManager);
-        // We expect exactly the same behavior after a reset().
-        memFreePageManager.reset();
-        testInMemoryFreePageManager(memFreePageManager);
-    }
-}
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/common/LSMIndexFileManagerTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/common/LSMIndexFileManagerTest.java
index 0c9e658..d9fdeb3 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/common/LSMIndexFileManagerTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/common/LSMIndexFileManagerTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -61,7 +61,8 @@
         TestStorageManagerComponentHolder.init(DEFAULT_PAGE_SIZE, DEFAULT_NUM_PAGES, DEFAULT_MAX_OPEN_FILES);
         ioManager = TestStorageManagerComponentHolder.getIOManager();
         fileMapProvider = TestStorageManagerComponentHolder.getFileMapProvider(null);
-        baseDir = "lsm_tree" + simpleDateFormat.format(new Date()) + sep;
+        baseDir = ioManager.getIODevices().get(DEFAULT_IO_DEVICE_ID).getPath() + sep + "lsm_tree"
+                + simpleDateFormat.format(new Date()) + sep;
         File f = new File(baseDir);
         f.mkdirs();
         file = new FileReference(f);
@@ -74,8 +75,7 @@
     }
 
     public void sortOrderTest(boolean testFlushFileName) throws InterruptedException, HyracksDataException {
-        ILSMIndexFileManager fileManager = new DummyLSMIndexFileManager(ioManager, fileMapProvider, file,
-                new DummyTreeFactory(), DEFAULT_IO_DEVICE_ID);
+        ILSMIndexFileManager fileManager = new DummyLSMIndexFileManager(fileMapProvider, file, new DummyTreeFactory());
         LinkedList<String> fileNames = new LinkedList<String>();
 
         int numFileNames = 100;
@@ -115,8 +115,7 @@
     }
 
     public void cleanInvalidFilesTest(IOManager ioManager) throws InterruptedException, IOException, IndexException {
-        ILSMIndexFileManager fileManager = new DummyLSMIndexFileManager(ioManager, fileMapProvider, file,
-                new DummyTreeFactory(), DEFAULT_IO_DEVICE_ID);
+        ILSMIndexFileManager fileManager = new DummyLSMIndexFileManager(fileMapProvider, file, new DummyTreeFactory());
         fileManager.createDirs();
 
         List<FileReference> flushFiles = new ArrayList<FileReference>();
@@ -190,7 +189,7 @@
 
         // Make sure invalid files were removed from the IODevices.
         ArrayList<String> remainingFiles = new ArrayList<String>();
-        File dir = new File(ioManager.getIODevices().get(DEFAULT_IO_DEVICE_ID).getPath(), baseDir);
+        File dir = new File(baseDir);
         FilenameFilter filter = new FilenameFilter() {
             public boolean accept(File dir, String name) {
                 return !name.startsWith(".");
@@ -218,7 +217,7 @@
     }
 
     private void cleanDirs(IOManager ioManager) {
-        File dir = new File(ioManager.getIODevices().get(DEFAULT_IO_DEVICE_ID).getPath(), baseDir);
+        File dir = new File(baseDir);
         FilenameFilter filter = new FilenameFilter() {
             public boolean accept(File dir, String name) {
                 return !name.startsWith(".");
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/common/VirtualBufferCacheTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/common/VirtualBufferCacheTest.java
new file mode 100644
index 0000000..0274c5c
--- /dev/null
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/common/VirtualBufferCacheTest.java
@@ -0,0 +1,132 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.hyracks.storage.am.lsm.common;
+
+import static org.junit.Assert.assertTrue;
+
+import java.io.File;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Random;
+import java.util.Set;
+
+import org.junit.Test;
+
+import edu.uci.ics.hyracks.api.io.FileReference;
+import edu.uci.ics.hyracks.storage.am.lsm.common.impls.VirtualBufferCache;
+import edu.uci.ics.hyracks.storage.common.buffercache.HeapBufferAllocator;
+import edu.uci.ics.hyracks.storage.common.buffercache.ICacheMemoryAllocator;
+import edu.uci.ics.hyracks.storage.common.buffercache.ICachedPage;
+import edu.uci.ics.hyracks.storage.common.file.BufferedFileHandle;
+
+public class VirtualBufferCacheTest {
+    private static final long SEED = 123456789L;
+    private static final int NUM_OVERPIN = 128;
+    private static final int PAGE_SIZE = 256;
+    private static final int NUM_FILES = 10;
+    private static final int NUM_PAGES = 1000;
+
+    private final Random random;
+    private final FileState[] fileStates;
+
+    private VirtualBufferCache vbc;
+
+    public VirtualBufferCacheTest() {
+        fileStates = new FileState[NUM_FILES];
+        for (int i = 0; i < NUM_FILES; i++) {
+            fileStates[i] = new FileState();
+        }
+        random = new Random(SEED);
+        vbc = null;
+    }
+
+    private static class FileState {
+        private int fileId;
+        private FileReference fileRef;
+        private int pinCount;
+        private Set<ICachedPage> pinnedPages;
+
+        public FileState() {
+            fileId = -1;
+            fileRef = null;
+            pinCount = 0;
+            pinnedPages = new HashSet<ICachedPage>();
+        }
+    }
+
+    /**
+     * Pins NUM_PAGES randomly distributed across NUM_FILES and checks that each
+     * set of cached pages pinned on behalf of a file are disjoint from all other sets of
+     * cached pages pinned on behalf of other files.
+     * Additionally, the test perform the same test when pinning over soft cap (NUM_PAGES)
+     * of pages.
+     */
+    @Test
+    public void test01() throws Exception {
+        ICacheMemoryAllocator allocator = new HeapBufferAllocator();
+        vbc = new VirtualBufferCache(allocator, PAGE_SIZE, NUM_PAGES);
+        vbc.open();
+        createFiles();
+
+        kPins(NUM_PAGES);
+        assertTrue(pagesDisjointed());
+
+        kPins(NUM_OVERPIN);
+        assertTrue(pagesDisjointed());
+
+        deleteFiles();
+        vbc.close();
+    }
+
+    private boolean pagesDisjointed() {
+        boolean disjoint = true;
+        for (int i = 0; i < NUM_FILES; i++) {
+            FileState fi = fileStates[i];
+            for (int j = i + 1; j < NUM_FILES; j++) {
+                FileState fj = fileStates[j];
+                disjoint = disjoint && Collections.disjoint(fi.pinnedPages, fj.pinnedPages);
+            }
+        }
+        return disjoint;
+    }
+
+    private void createFiles() throws Exception {
+        for (int i = 0; i < NUM_FILES; i++) {
+            FileState f = fileStates[i];
+            String fName = String.format("f%d", i);
+            f.fileRef = new FileReference(new File(fName));
+            vbc.createFile(f.fileRef);
+            f.fileId = vbc.getFileMapProvider().lookupFileId(f.fileRef);
+        }
+    }
+
+    private void deleteFiles() throws Exception {
+        for (int i = 0; i < NUM_FILES; i++) {
+            vbc.deleteFile(fileStates[i].fileId, false);
+        }
+    }
+
+    private void kPins(int k) throws Exception {
+        int numPinned = 0;
+        while (numPinned < k) {
+            int fsIdx = random.nextInt(NUM_FILES);
+            FileState f = fileStates[fsIdx];
+            ICachedPage p = vbc.pin(BufferedFileHandle.getDiskPageId(f.fileId, f.pinCount), true);
+            f.pinnedPages.add(p);
+            ++f.pinCount;
+            ++numPinned;
+        }
+    }
+}
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/common/VirtualFreePageManagerTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/common/VirtualFreePageManagerTest.java
new file mode 100644
index 0000000..af939c0
--- /dev/null
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/common/VirtualFreePageManagerTest.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.hyracks.storage.am.lsm.common;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Test;
+
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.VirtualFreePageManager;
+
+public class VirtualFreePageManagerTest {
+
+    private final int NUM_PAGES = 100;
+
+    private void testInMemoryFreePageManager(VirtualFreePageManager virtualFreePageManager) throws HyracksDataException {
+        // The first two pages are reserved for the BTree's metadata page and
+        // root page.
+        // The "actual" capacity is therefore numPages - 2.
+        int capacity = virtualFreePageManager.getCapacity();
+        assertEquals(capacity, NUM_PAGES - 2);
+        for (int i = 0; i < capacity; i++) {
+            int pageId = virtualFreePageManager.getFreePage(null);
+            // The free pages start from page 2;
+            assertEquals(i + 2, pageId);
+        }
+        // Start asking for 100 pages above the capacity.
+        // Asking for pages above the capacity should be very rare, but
+        // nevertheless succeed.
+        // We expect isFull() to return true.
+        for (int i = 0; i < 100; i++) {
+            int pageId = virtualFreePageManager.getFreePage(null);
+            assertEquals(capacity + i + 2, pageId);
+        }
+    }
+
+    @Test
+    public void test01() throws HyracksDataException {
+        VirtualFreePageManager virtualFreePageManager = new VirtualFreePageManager(NUM_PAGES);
+        testInMemoryFreePageManager(virtualFreePageManager);
+        // We expect exactly the same behavior after a reset().
+        virtualFreePageManager.reset();
+        testInMemoryFreePageManager(virtualFreePageManager);
+    }
+}
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/pom.xml b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/pom.xml
index be0bb6f..45a5837 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/pom.xml
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>hyracks-storage-am-lsm-invertedindex-test</artifactId>
@@ -5,7 +19,7 @@
 	<parent>
 		<artifactId>hyracks-tests</artifactId>
 		<groupId>edu.uci.ics.hyracks</groupId>
-		<version>0.2.6-SNAPSHOT</version>
+		<version>0.2.7-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
@@ -26,21 +40,21 @@
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-storage-am-lsm-invertedindex</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-test-support</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>test</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-data-std</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>test</scope>
 		</dependency>
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/LSMInvertedIndexBulkLoadTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/LSMInvertedIndexBulkLoadTest.java
index fcb78ad..ee09f2f 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/LSMInvertedIndexBulkLoadTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/LSMInvertedIndexBulkLoadTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -21,6 +21,6 @@
 public class LSMInvertedIndexBulkLoadTest extends AbstractInvertedIndexLoadTest {
 
     public LSMInvertedIndexBulkLoadTest() {
-        super(InvertedIndexType.LSM, true, 1);
+        super(InvertedIndexType.LSM, true);
     }
 }
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/LSMInvertedIndexDeleteTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/LSMInvertedIndexDeleteTest.java
index 4e2fe37..2153f7d 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/LSMInvertedIndexDeleteTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/LSMInvertedIndexDeleteTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/LSMInvertedIndexInsertTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/LSMInvertedIndexInsertTest.java
index e9a1c75..748dd32 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/LSMInvertedIndexInsertTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/LSMInvertedIndexInsertTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -21,6 +21,6 @@
 public class LSMInvertedIndexInsertTest extends AbstractInvertedIndexLoadTest {
 
     public LSMInvertedIndexInsertTest() {
-        super(InvertedIndexType.LSM, false, 1);
+        super(InvertedIndexType.LSM, false);
     }
 }
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/LSMInvertedIndexMergeTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/LSMInvertedIndexMergeTest.java
index 811919b..5115b7e 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/LSMInvertedIndexMergeTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/LSMInvertedIndexMergeTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -34,7 +34,7 @@
     private final int maxTreesToMerge = AccessMethodTestsConfig.LSM_INVINDEX_MAX_TREES_TO_MERGE;
 
     public LSMInvertedIndexMergeTest() {
-        super(InvertedIndexType.LSM, true, 1);
+        super(InvertedIndexType.LSM, false);
     }
 
     @Override
@@ -48,11 +48,10 @@
 
         for (int i = 0; i < maxTreesToMerge; i++) {
             for (int j = 0; j < i; j++) {
-                if (bulkLoad) {
-                    LSMInvertedIndexTestUtils.bulkLoadInvIndex(testCtx, tupleGen, NUM_DOCS_TO_INSERT);
-                } else {
-                    LSMInvertedIndexTestUtils.insertIntoInvIndex(testCtx, tupleGen, NUM_DOCS_TO_INSERT);
-                }
+                LSMInvertedIndexTestUtils.insertIntoInvIndex(testCtx, tupleGen, NUM_DOCS_TO_INSERT);
+                // Deactivate and the re-activate the index to force it flush its in memory component
+                invIndex.deactivate();
+                invIndex.activate();
             }
             // Perform merge.
             invIndexAccessor.scheduleMerge(NoOpIOOperationCallback.INSTANCE);
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/LSMInvertedIndexMultiBulkLoadTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/LSMInvertedIndexMultiBulkLoadTest.java
deleted file mode 100644
index adfb689..0000000
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/LSMInvertedIndexMultiBulkLoadTest.java
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * Copyright 2009-2012 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package edu.uci.ics.hyracks.storage.am.lsm.invertedindex;
-
-import edu.uci.ics.hyracks.storage.am.config.AccessMethodTestsConfig;
-import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.common.AbstractInvertedIndexLoadTest;
-import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.util.LSMInvertedIndexTestContext.InvertedIndexType;
-
-public class LSMInvertedIndexMultiBulkLoadTest extends AbstractInvertedIndexLoadTest {
-
-    public LSMInvertedIndexMultiBulkLoadTest() {
-        super(InvertedIndexType.LSM, true, AccessMethodTestsConfig.LSM_INVINDEX_NUM_BULKLOAD_ROUNDS);
-    }
-}
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/LSMInvertedIndexSearchTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/LSMInvertedIndexSearchTest.java
index 1528e20..ec337e7 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/LSMInvertedIndexSearchTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/LSMInvertedIndexSearchTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/PartitionedLSMInvertedIndexBulkLoadTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/PartitionedLSMInvertedIndexBulkLoadTest.java
index f7a36f0..0f0345f 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/PartitionedLSMInvertedIndexBulkLoadTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/PartitionedLSMInvertedIndexBulkLoadTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -21,6 +21,6 @@
 public class PartitionedLSMInvertedIndexBulkLoadTest extends AbstractInvertedIndexLoadTest {
 
     public PartitionedLSMInvertedIndexBulkLoadTest() {
-        super(InvertedIndexType.PARTITIONED_LSM, true, 1);
+        super(InvertedIndexType.PARTITIONED_LSM, true);
     }
 }
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/PartitionedLSMInvertedIndexDeleteTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/PartitionedLSMInvertedIndexDeleteTest.java
index 4fd529b..ac46e14 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/PartitionedLSMInvertedIndexDeleteTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/PartitionedLSMInvertedIndexDeleteTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/PartitionedLSMInvertedIndexInsertTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/PartitionedLSMInvertedIndexInsertTest.java
index 4608f81..608f2fc 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/PartitionedLSMInvertedIndexInsertTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/PartitionedLSMInvertedIndexInsertTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -21,6 +21,6 @@
 public class PartitionedLSMInvertedIndexInsertTest extends AbstractInvertedIndexLoadTest {
 
     public PartitionedLSMInvertedIndexInsertTest() {
-        super(InvertedIndexType.PARTITIONED_LSM, false, 1);
+        super(InvertedIndexType.PARTITIONED_LSM, false);
     }
 }
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/PartitionedLSMInvertedIndexMergeTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/PartitionedLSMInvertedIndexMergeTest.java
index 786afe1..523557d 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/PartitionedLSMInvertedIndexMergeTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/PartitionedLSMInvertedIndexMergeTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -34,7 +34,7 @@
     private final int maxTreesToMerge = AccessMethodTestsConfig.LSM_INVINDEX_MAX_TREES_TO_MERGE;
 
     public PartitionedLSMInvertedIndexMergeTest() {
-        super(InvertedIndexType.PARTITIONED_LSM, true, 1);
+        super(InvertedIndexType.PARTITIONED_LSM, false);
     }
 
     @Override
@@ -48,11 +48,10 @@
 
         for (int i = 0; i < maxTreesToMerge; i++) {
             for (int j = 0; j < i; j++) {
-                if (bulkLoad) {
-                    LSMInvertedIndexTestUtils.bulkLoadInvIndex(testCtx, tupleGen, NUM_DOCS_TO_INSERT);
-                } else {
-                    LSMInvertedIndexTestUtils.insertIntoInvIndex(testCtx, tupleGen, NUM_DOCS_TO_INSERT);
-                }
+                LSMInvertedIndexTestUtils.insertIntoInvIndex(testCtx, tupleGen, NUM_DOCS_TO_INSERT);
+                // Deactivate and the re-activate the index to force it flush its in memory component
+                invIndex.deactivate();
+                invIndex.activate();
             }
             // Perform merge.
             invIndexAccessor.scheduleMerge(NoOpIOOperationCallback.INSTANCE);
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/PartitionedLSMInvertedIndexMultiBulkLoadTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/PartitionedLSMInvertedIndexMultiBulkLoadTest.java
deleted file mode 100644
index 80a3c0b..0000000
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/PartitionedLSMInvertedIndexMultiBulkLoadTest.java
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * Copyright 2009-2012 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package edu.uci.ics.hyracks.storage.am.lsm.invertedindex;
-
-import edu.uci.ics.hyracks.storage.am.config.AccessMethodTestsConfig;
-import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.common.AbstractInvertedIndexLoadTest;
-import edu.uci.ics.hyracks.storage.am.lsm.invertedindex.util.LSMInvertedIndexTestContext.InvertedIndexType;
-
-public class PartitionedLSMInvertedIndexMultiBulkLoadTest extends AbstractInvertedIndexLoadTest {
-
-    public PartitionedLSMInvertedIndexMultiBulkLoadTest() {
-        super(InvertedIndexType.PARTITIONED_LSM, true, AccessMethodTestsConfig.LSM_INVINDEX_NUM_BULKLOAD_ROUNDS);
-    }
-}
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/PartitionedLSMInvertedIndexSearchTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/PartitionedLSMInvertedIndexSearchTest.java
index c8a7667..6c2f79d 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/PartitionedLSMInvertedIndexSearchTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/PartitionedLSMInvertedIndexSearchTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/common/AbstractInvertedIndexDeleteTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/common/AbstractInvertedIndexDeleteTest.java
index f7783fb..3fa3ca7 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/common/AbstractInvertedIndexDeleteTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/common/AbstractInvertedIndexDeleteTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/common/AbstractInvertedIndexLoadTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/common/AbstractInvertedIndexLoadTest.java
index c855cc4..8ccc203 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/common/AbstractInvertedIndexLoadTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/common/AbstractInvertedIndexLoadTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -29,12 +29,10 @@
 public abstract class AbstractInvertedIndexLoadTest extends AbstractInvertedIndexTest {
 
     protected final boolean bulkLoad;
-    protected final int numRounds;
 
-    public AbstractInvertedIndexLoadTest(InvertedIndexType invIndexType, boolean bulkLoad, int numRounds) {
+    public AbstractInvertedIndexLoadTest(InvertedIndexType invIndexType, boolean bulkLoad) {
         super(invIndexType);
         this.bulkLoad = bulkLoad;
-        this.numRounds = numRounds;
     }
 
     protected void runTest(LSMInvertedIndexTestContext testCtx, TupleGenerator tupleGen) throws IOException,
@@ -43,15 +41,13 @@
         invIndex.create();
         invIndex.activate();
 
-        for (int i = 0; i < numRounds; i++) {
-            if (bulkLoad) {
-                LSMInvertedIndexTestUtils.bulkLoadInvIndex(testCtx, tupleGen, NUM_DOCS_TO_INSERT);
-            } else {
-                LSMInvertedIndexTestUtils.insertIntoInvIndex(testCtx, tupleGen, NUM_DOCS_TO_INSERT);
-            }
-            validateAndCheckIndex(testCtx);
-            runTinySearchWorkload(testCtx, tupleGen);
+        if (bulkLoad) {
+            LSMInvertedIndexTestUtils.bulkLoadInvIndex(testCtx, tupleGen, NUM_DOCS_TO_INSERT);
+        } else {
+            LSMInvertedIndexTestUtils.insertIntoInvIndex(testCtx, tupleGen, NUM_DOCS_TO_INSERT);
         }
+        validateAndCheckIndex(testCtx);
+        runTinySearchWorkload(testCtx, tupleGen);
 
         invIndex.deactivate();
         invIndex.destroy();
@@ -59,7 +55,8 @@
 
     @Test
     public void wordTokensInvIndexTest() throws IOException, IndexException {
-        LSMInvertedIndexTestContext testCtx = LSMInvertedIndexTestUtils.createWordInvIndexTestContext(harness, invIndexType);
+        LSMInvertedIndexTestContext testCtx = LSMInvertedIndexTestUtils.createWordInvIndexTestContext(harness,
+                invIndexType);
         TupleGenerator tupleGen = LSMInvertedIndexTestUtils.createStringDocumentTupleGen(harness.getRandom());
         runTest(testCtx, tupleGen);
     }
@@ -74,7 +71,8 @@
 
     @Test
     public void ngramTokensInvIndexTest() throws IOException, IndexException {
-        LSMInvertedIndexTestContext testCtx = LSMInvertedIndexTestUtils.createNGramInvIndexTestContext(harness, invIndexType);
+        LSMInvertedIndexTestContext testCtx = LSMInvertedIndexTestUtils.createNGramInvIndexTestContext(harness,
+                invIndexType);
         TupleGenerator tupleGen = LSMInvertedIndexTestUtils.createPersonNamesTupleGen(harness.getRandom());
         runTest(testCtx, tupleGen);
     }
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/common/AbstractInvertedIndexSearchTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/common/AbstractInvertedIndexSearchTest.java
index 991ff59..49316ee 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/common/AbstractInvertedIndexSearchTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/common/AbstractInvertedIndexSearchTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/common/AbstractInvertedIndexTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/common/AbstractInvertedIndexTest.java
index 90a6d54..fb27efc 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/common/AbstractInvertedIndexTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/common/AbstractInvertedIndexTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/common/LSMInvertedIndexTestHarness.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/common/LSMInvertedIndexTestHarness.java
index bf2d5e8..7276464 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/common/LSMInvertedIndexTestHarness.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/common/LSMInvertedIndexTestHarness.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -27,20 +27,20 @@
 import edu.uci.ics.hyracks.api.io.FileReference;
 import edu.uci.ics.hyracks.api.io.IODeviceHandle;
 import edu.uci.ics.hyracks.control.nc.io.IOManager;
-import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
-import edu.uci.ics.hyracks.storage.am.common.frames.LIFOMetaDataFrameFactory;
+import edu.uci.ics.hyracks.storage.am.common.api.IVirtualFreePageManager;
 import edu.uci.ics.hyracks.storage.am.config.AccessMethodTestsConfig;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.IInMemoryBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationScheduler;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicy;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
-import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.DualIndexInMemoryBufferCache;
-import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.DualIndexInMemoryFreePageManager;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTracker;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
+import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.VirtualFreePageManager;
+import edu.uci.ics.hyracks.storage.am.lsm.common.impls.MultitenantVirtualBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.NoMergePolicy;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.NoOpIOOperationCallback;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.SynchronousScheduler;
-import edu.uci.ics.hyracks.storage.am.lsm.common.impls.ThreadCountingOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.impls.ThreadCountingTracker;
+import edu.uci.ics.hyracks.storage.am.lsm.common.impls.VirtualBufferCache;
 import edu.uci.ics.hyracks.storage.common.buffercache.HeapBufferAllocator;
 import edu.uci.ics.hyracks.storage.common.buffercache.IBufferCache;
 import edu.uci.ics.hyracks.storage.common.file.IFileMapProvider;
@@ -63,12 +63,12 @@
     protected int ioDeviceId;
     protected IBufferCache diskBufferCache;
     protected IFileMapProvider diskFileMapProvider;
-    protected IInMemoryBufferCache memBufferCache;
-    protected IInMemoryFreePageManager memFreePageManager;
+    protected IVirtualBufferCache virtualBufferCache;
+    protected IVirtualFreePageManager virtualFreePageManager;
     protected IHyracksTaskContext ctx;
     protected ILSMIOOperationScheduler ioScheduler;
     protected ILSMMergePolicy mergePolicy;
-    protected ILSMOperationTrackerFactory opTrackerFactory;
+    protected ILSMOperationTracker opTracker;
     protected ILSMIOOperationCallbackProvider ioOpCallbackProvider;
 
     protected final Random rnd = new Random();
@@ -89,7 +89,7 @@
         this.bloomFilterFalsePositiveRate = AccessMethodTestsConfig.LSM_INVINDEX_BLOOMFILTER_FALSE_POSITIVE_RATE;
         this.ioScheduler = SynchronousScheduler.INSTANCE;
         this.mergePolicy = NoMergePolicy.INSTANCE;
-        this.opTrackerFactory = ThreadCountingOperationTrackerFactory.INSTANCE;
+        this.opTracker = new ThreadCountingTracker();
         this.ioOpCallbackProvider = NoOpIOOperationCallback.INSTANCE;
     }
 
@@ -104,43 +104,44 @@
         this.bloomFilterFalsePositiveRate = bloomFilterFalsePositiveRate;
         this.ioScheduler = SynchronousScheduler.INSTANCE;
         this.mergePolicy = NoMergePolicy.INSTANCE;
-        this.opTrackerFactory = ThreadCountingOperationTrackerFactory.INSTANCE;
+        this.opTracker = new ThreadCountingTracker();
     }
 
     public void setUp() throws HyracksException {
-        onDiskDir = "lsm_invertedindex_" + simpleDateFormat.format(new Date()) + sep;
+        ioManager = TestStorageManagerComponentHolder.getIOManager();
+        ioDeviceId = 0;
+        onDiskDir = ioManager.getIODevices().get(ioDeviceId).getPath() + sep + "lsm_invertedindex_"
+                + simpleDateFormat.format(new Date()) + sep;
         ctx = TestUtils.create(getHyracksFrameSize());
         TestStorageManagerComponentHolder.init(diskPageSize, diskNumPages, diskMaxOpenFiles);
         diskBufferCache = TestStorageManagerComponentHolder.getBufferCache(ctx);
         diskFileMapProvider = TestStorageManagerComponentHolder.getFileMapProvider(ctx);
-        memBufferCache = new DualIndexInMemoryBufferCache(new HeapBufferAllocator(), memPageSize, memNumPages);
-        memBufferCache.open();
-        memFreePageManager = new DualIndexInMemoryFreePageManager(memNumPages, new LIFOMetaDataFrameFactory());
-        ioManager = TestStorageManagerComponentHolder.getIOManager();
-        ioDeviceId = 0;
+        virtualBufferCache = new MultitenantVirtualBufferCache(new VirtualBufferCache(new HeapBufferAllocator(),
+                memPageSize, memNumPages));
+        virtualBufferCache.open();
+        virtualFreePageManager = new VirtualFreePageManager(memNumPages);
         rnd.setSeed(RANDOM_SEED);
         invIndexFileRef = ioManager.getIODevices().get(0).createFileReference(onDiskDir + invIndexFileName);
     }
 
     public void tearDown() throws HyracksDataException {
         diskBufferCache.close();
-        for (IODeviceHandle dev : ioManager.getIODevices()) {
-            File dir = new File(dev.getPath(), onDiskDir);
-            FilenameFilter filter = new FilenameFilter() {
-                public boolean accept(File dir, String name) {
-                    return !name.startsWith(".");
-                }
-            };
-            String[] files = dir.list(filter);
-            if (files != null) {
-                for (String fileName : files) {
-                    File file = new File(dir.getPath() + File.separator + fileName);
-                    file.delete();
-                }
+        IODeviceHandle dev = ioManager.getIODevices().get(ioDeviceId);
+        File dir = new File(dev.getPath(), onDiskDir);
+        FilenameFilter filter = new FilenameFilter() {
+            public boolean accept(File dir, String name) {
+                return !name.startsWith(".");
             }
-            dir.delete();
+        };
+        String[] files = dir.list(filter);
+        if (files != null) {
+            for (String fileName : files) {
+                File file = new File(dir.getPath() + File.separator + fileName);
+                file.delete();
+            }
         }
-        memBufferCache.close();
+        dir.delete();
+        virtualBufferCache.close();
     }
 
     public FileReference getInvListsFileRef() {
@@ -187,16 +188,16 @@
         return diskFileMapProvider;
     }
 
-    public IInMemoryBufferCache getMemBufferCache() {
-        return memBufferCache;
+    public IVirtualBufferCache getVirtualBufferCache() {
+        return virtualBufferCache;
     }
 
     public double getBoomFilterFalsePositiveRate() {
         return bloomFilterFalsePositiveRate;
     }
 
-    public IInMemoryFreePageManager getMemFreePageManager() {
-        return memFreePageManager;
+    public IVirtualFreePageManager getVirtualFreePageManager() {
+        return virtualFreePageManager;
     }
 
     public IHyracksTaskContext getHyracksTastContext() {
@@ -215,8 +216,8 @@
         return ioScheduler;
     }
 
-    public ILSMOperationTrackerFactory getOperationTrackerFactory() {
-        return opTrackerFactory;
+    public ILSMOperationTracker getOperationTracker() {
+        return opTracker;
     }
 
     public ILSMMergePolicy getMergePolicy() {
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/InMemoryInvertedIndexDeleteTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/InMemoryInvertedIndexDeleteTest.java
index c71d996..4239531 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/InMemoryInvertedIndexDeleteTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/InMemoryInvertedIndexDeleteTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/InMemoryInvertedIndexInsertTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/InMemoryInvertedIndexInsertTest.java
index d2b883d..8bc2817 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/InMemoryInvertedIndexInsertTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/InMemoryInvertedIndexInsertTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -21,6 +21,6 @@
 public class InMemoryInvertedIndexInsertTest extends AbstractInvertedIndexLoadTest {
     
     public InMemoryInvertedIndexInsertTest() {
-        super(InvertedIndexType.INMEMORY, false, 1);
+        super(InvertedIndexType.INMEMORY, false);
     }
 }
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/InMemoryInvertedIndexSearchTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/InMemoryInvertedIndexSearchTest.java
index f3b3026..a4917ff 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/InMemoryInvertedIndexSearchTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/InMemoryInvertedIndexSearchTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/PartitionedInMemoryInvertedIndexDeleteTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/PartitionedInMemoryInvertedIndexDeleteTest.java
index eac7765..a449eb0 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/PartitionedInMemoryInvertedIndexDeleteTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/PartitionedInMemoryInvertedIndexDeleteTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/PartitionedInMemoryInvertedIndexInsertTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/PartitionedInMemoryInvertedIndexInsertTest.java
index 8342efd..46ea72c 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/PartitionedInMemoryInvertedIndexInsertTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/PartitionedInMemoryInvertedIndexInsertTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -21,6 +21,6 @@
 public class PartitionedInMemoryInvertedIndexInsertTest extends AbstractInvertedIndexLoadTest {
 
     public PartitionedInMemoryInvertedIndexInsertTest() {
-        super(InvertedIndexType.PARTITIONED_INMEMORY, false, 1);
+        super(InvertedIndexType.PARTITIONED_INMEMORY, false);
     }
 }
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/PartitionedInMemoryInvertedIndexSearchTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/PartitionedInMemoryInvertedIndexSearchTest.java
index 385d65d..3e0c5d2 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/PartitionedInMemoryInvertedIndexSearchTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/inmemory/PartitionedInMemoryInvertedIndexSearchTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/multithread/LSMInvertedIndexMultiThreadTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/multithread/LSMInvertedIndexMultiThreadTest.java
index bd48068..aa5b57f 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/multithread/LSMInvertedIndexMultiThreadTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/multithread/LSMInvertedIndexMultiThreadTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/multithread/LSMInvertedIndexMultiThreadTestDriver.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/multithread/LSMInvertedIndexMultiThreadTestDriver.java
index 6159969..73f52be 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/multithread/LSMInvertedIndexMultiThreadTestDriver.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/multithread/LSMInvertedIndexMultiThreadTestDriver.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/multithread/LSMInvertedIndexTestWorker.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/multithread/LSMInvertedIndexTestWorker.java
index f09ff0a..e1570af 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/multithread/LSMInvertedIndexTestWorker.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/multithread/LSMInvertedIndexTestWorker.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/multithread/LSMInvertedIndexWorkerFactory.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/multithread/LSMInvertedIndexWorkerFactory.java
index c0b8475..c211edb 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/multithread/LSMInvertedIndexWorkerFactory.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/multithread/LSMInvertedIndexWorkerFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/multithread/PartitionedLSMInvertedIndexMultiThreadTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/multithread/PartitionedLSMInvertedIndexMultiThreadTest.java
index 1adaf61..6120139 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/multithread/PartitionedLSMInvertedIndexMultiThreadTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/multithread/PartitionedLSMInvertedIndexMultiThreadTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/FixedSizeFrameTupleTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/FixedSizeFrameTupleTest.java
index 3059062..1badac8 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/FixedSizeFrameTupleTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/FixedSizeFrameTupleTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndexBulkLoadTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndexBulkLoadTest.java
index 4813615..776b193 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndexBulkLoadTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndexBulkLoadTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -21,6 +21,6 @@
 public class OnDiskInvertedIndexBulkLoadTest extends AbstractInvertedIndexLoadTest {
 
     public OnDiskInvertedIndexBulkLoadTest() {
-        super(InvertedIndexType.ONDISK, true, 1);
+        super(InvertedIndexType.ONDISK, true);
     }
 }
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndexLifecycleTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndexLifecycleTest.java
index 09432de..ef3eb39 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndexLifecycleTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndexLifecycleTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -57,17 +57,22 @@
         IBinaryComparatorFactory[] invListCmpFactories = new IBinaryComparatorFactory[] { PointableBinaryComparatorFactory
                 .of(IntegerPointable.FACTORY) };
         IInvertedListBuilder invListBuilder = new FixedSizeElementInvertedListBuilder(invListTypeTraits);
-        FileReference btreeFile = new FileReference(new File(harness.getInvListsFileRef().getFile().getPath() + "_btree"));
+        FileReference btreeFile = new FileReference(new File(harness.getInvListsFileRef().getFile().getPath()
+                + "_btree"));
         index = new OnDiskInvertedIndex(harness.getDiskBufferCache(), harness.getDiskFileMapProvider(), invListBuilder,
-                invListTypeTraits, invListCmpFactories, tokenTypeTraits, tokenCmpFactories, harness.getInvListsFileRef(),
-                btreeFile);
+                invListTypeTraits, invListCmpFactories, tokenTypeTraits, tokenCmpFactories,
+                harness.getInvListsFileRef(), btreeFile);
 
     }
 
     @Override
     public void tearDown() throws Exception {
-        index.deactivate();
-        index.destroy();
+        try {
+            index.deactivate();
+        } catch (Exception e) {
+        } finally {
+            index.destroy();
+        }
         harness.tearDown();
     }
 
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndexSearchTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndexSearchTest.java
index 76d9200..8d32b76 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndexSearchTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndexSearchTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/PartitionedOnDiskInvertedIndexBulkLoadTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/PartitionedOnDiskInvertedIndexBulkLoadTest.java
index f641630..6b9890d 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/PartitionedOnDiskInvertedIndexBulkLoadTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/PartitionedOnDiskInvertedIndexBulkLoadTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -21,6 +21,6 @@
 public class PartitionedOnDiskInvertedIndexBulkLoadTest extends AbstractInvertedIndexLoadTest {
 
     public PartitionedOnDiskInvertedIndexBulkLoadTest() {
-        super(InvertedIndexType.PARTITIONED_ONDISK, true, 1);
+        super(InvertedIndexType.PARTITIONED_ONDISK, true);
     }
 }
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/PartitionedOnDiskInvertedIndexSearchTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/PartitionedOnDiskInvertedIndexSearchTest.java
index 4fa25ed..45b9cf0 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/PartitionedOnDiskInvertedIndexSearchTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/ondisk/PartitionedOnDiskInvertedIndexSearchTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/NGramTokenizerTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/NGramTokenizerTest.java
index 33ea4f5..643f365 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/NGramTokenizerTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/NGramTokenizerTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/WordTokenizerTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/WordTokenizerTest.java
index 3ff9304..35aa236 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/WordTokenizerTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/tokenizers/WordTokenizerTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/util/LSMInvertedIndexTestContext.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/util/LSMInvertedIndexTestContext.java
index d560ffc..05dc1b5 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/util/LSMInvertedIndexTestContext.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/util/LSMInvertedIndexTestContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -18,6 +18,7 @@
 import java.io.ByteArrayInputStream;
 import java.io.DataInput;
 import java.io.DataInputStream;
+import java.io.File;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.HashSet;
@@ -27,6 +28,7 @@
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.api.io.FileReference;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
 import edu.uci.ics.hyracks.dataflow.common.util.SerdeUtils;
 import edu.uci.ics.hyracks.dataflow.common.util.TupleUtils;
@@ -118,15 +120,16 @@
         IInvertedIndex invIndex;
         switch (invIndexType) {
             case INMEMORY: {
-                invIndex = InvertedIndexUtils.createInMemoryBTreeInvertedindex(harness.getMemBufferCache(),
-                        harness.getMemFreePageManager(), invListTypeTraits, invListCmpFactories, tokenTypeTraits,
-                        tokenCmpFactories, tokenizerFactory);
+                invIndex = InvertedIndexUtils.createInMemoryBTreeInvertedindex(harness.getVirtualBufferCache(),
+                        harness.getVirtualFreePageManager(), invListTypeTraits, invListCmpFactories, tokenTypeTraits,
+                        tokenCmpFactories, tokenizerFactory, new FileReference(new File(harness.getOnDiskDir())));
                 break;
             }
             case PARTITIONED_INMEMORY: {
-                invIndex = InvertedIndexUtils.createPartitionedInMemoryBTreeInvertedindex(harness.getMemBufferCache(),
-                        harness.getMemFreePageManager(), invListTypeTraits, invListCmpFactories, tokenTypeTraits,
-                        tokenCmpFactories, tokenizerFactory);
+                invIndex = InvertedIndexUtils.createPartitionedInMemoryBTreeInvertedindex(harness
+                        .getVirtualBufferCache(), harness.getVirtualFreePageManager(), invListTypeTraits,
+                        invListCmpFactories, tokenTypeTraits, tokenCmpFactories, tokenizerFactory, new FileReference(
+                                new File(harness.getOnDiskDir())));
                 break;
             }
             case ONDISK: {
@@ -142,23 +145,21 @@
                 break;
             }
             case LSM: {
-                invIndex = InvertedIndexUtils.createLSMInvertedIndex(harness.getMemBufferCache(),
-                        harness.getMemFreePageManager(), harness.getDiskFileMapProvider(), invListTypeTraits,
-                        invListCmpFactories, tokenTypeTraits, tokenCmpFactories, tokenizerFactory,
-                        harness.getDiskBufferCache(), harness.getIOManager(), harness.getOnDiskDir(),
+                invIndex = InvertedIndexUtils.createLSMInvertedIndex(harness.getVirtualBufferCache(),
+                        harness.getDiskFileMapProvider(), invListTypeTraits, invListCmpFactories, tokenTypeTraits,
+                        tokenCmpFactories, tokenizerFactory, harness.getDiskBufferCache(), harness.getOnDiskDir(),
                         harness.getBoomFilterFalsePositiveRate(), harness.getMergePolicy(),
-                        harness.getOperationTrackerFactory(), harness.getIOScheduler(),
-                        harness.getIOOperationCallbackProvider(), harness.getIODeviceId());
+                        harness.getOperationTracker(), harness.getIOScheduler(),
+                        harness.getIOOperationCallbackProvider());
                 break;
             }
             case PARTITIONED_LSM: {
-                invIndex = InvertedIndexUtils.createPartitionedLSMInvertedIndex(harness.getMemBufferCache(),
-                        harness.getMemFreePageManager(), harness.getDiskFileMapProvider(), invListTypeTraits,
-                        invListCmpFactories, tokenTypeTraits, tokenCmpFactories, tokenizerFactory,
-                        harness.getDiskBufferCache(), harness.getIOManager(), harness.getOnDiskDir(),
+                invIndex = InvertedIndexUtils.createPartitionedLSMInvertedIndex(harness.getVirtualBufferCache(),
+                        harness.getDiskFileMapProvider(), invListTypeTraits, invListCmpFactories, tokenTypeTraits,
+                        tokenCmpFactories, tokenizerFactory, harness.getDiskBufferCache(), harness.getOnDiskDir(),
                         harness.getBoomFilterFalsePositiveRate(), harness.getMergePolicy(),
-                        harness.getOperationTrackerFactory(), harness.getIOScheduler(),
-                        harness.getIOOperationCallbackProvider(), harness.getIODeviceId());
+                        harness.getOperationTracker(), harness.getIOScheduler(),
+                        harness.getIOOperationCallbackProvider());
                 break;
             }
             default: {
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/util/LSMInvertedIndexTestUtils.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/util/LSMInvertedIndexTestUtils.java
index 97f78f3..c4e1ac5 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/util/LSMInvertedIndexTestUtils.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-invertedindex-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/invertedindex/util/LSMInvertedIndexTestUtils.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -205,7 +205,7 @@
         ISerializerDeserializer[] fieldSerdes = testCtx.getFieldSerdes();
 
         // Use the expected index to bulk-load the actual index.
-        IIndexBulkLoader bulkLoader = testCtx.getIndex().createBulkLoader(1.0f, false, numDocs);
+        IIndexBulkLoader bulkLoader = testCtx.getIndex().createBulkLoader(1.0f, false, numDocs, true);
         ArrayTupleBuilder tupleBuilder = new ArrayTupleBuilder(testCtx.getFieldSerdes().length);
         ArrayTupleReference tuple = new ArrayTupleReference();
         Iterator<CheckTuple> checkTupleIter = tmpMemIndex.iterator();
@@ -493,7 +493,6 @@
         int[] fieldPermutation = new int[] { 0 };
         PermutingTupleReference searchDocument = new PermutingTupleReference(fieldPermutation);
 
-        IIndexCursor resultCursor = accessor.createSearchCursor();
         int numQueries = numDocQueries + numRandomQueries;
         for (int i = 0; i < numQueries; i++) {
             // If number of documents in the corpus is less than numDocQueries, then replace the remaining ones with random queries.
@@ -511,7 +510,7 @@
             searchPred.setQueryTuple(searchDocument);
             searchPred.setQueryFieldIndex(0);
 
-            resultCursor.reset();
+            IIndexCursor resultCursor = accessor.createSearchCursor();
             boolean panic = false;
             try {
                 accessor.search(resultCursor, searchPred);
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/pom.xml b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/pom.xml
index 95332a7..14863e5 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/pom.xml
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-storage-am-lsm-rtree-test</artifactId>
@@ -5,7 +19,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks-tests</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -25,14 +39,14 @@
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-storage-am-lsm-rtree</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-test-support</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeBulkLoadTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeBulkLoadTest.java
index edd24b4..3fcb4e5 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeBulkLoadTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeBulkLoadTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -35,7 +35,7 @@
 public class LSMRTreeBulkLoadTest extends AbstractRTreeBulkLoadTest {
 
     public LSMRTreeBulkLoadTest() {
-        super(1, AccessMethodTestsConfig.LSM_RTREE_TEST_RSTAR_POLICY);
+        super(AccessMethodTestsConfig.LSM_RTREE_TEST_RSTAR_POLICY);
     }
 
     private final LSMRTreeTestHarness harness = new LSMRTreeTestHarness();
@@ -54,12 +54,10 @@
     protected AbstractRTreeTestContext createTestContext(ISerializerDeserializer[] fieldSerdes,
             IPrimitiveValueProviderFactory[] valueProviderFactories, int numKeys, RTreePolicyType rtreePolicyType)
             throws Exception {
-        return LSMRTreeTestContext.create(harness.getMemBufferCache(), harness.getMemFreePageManager(),
-                harness.getIOManager(), harness.getFileReference(), harness.getDiskBufferCache(),
-                harness.getDiskFileMapProvider(), fieldSerdes, valueProviderFactories, numKeys, rtreePolicyType,
-                harness.getBoomFilterFalsePositiveRate(), harness.getMergePolicy(),
-                harness.getOperationTrackerFactory(), harness.getIOScheduler(),
-                harness.getIOOperationCallbackProvider(), harness.getIODeviceId());
+        return LSMRTreeTestContext.create(harness.getVirtualBufferCache(), harness.getFileReference(),
+                harness.getDiskBufferCache(), harness.getDiskFileMapProvider(), fieldSerdes, valueProviderFactories,
+                numKeys, rtreePolicyType, harness.getBoomFilterFalsePositiveRate(), harness.getMergePolicy(),
+                harness.getOperationTracker(), harness.getIOScheduler(), harness.getIOOperationCallbackProvider());
     }
 
     @Override
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeDeleteTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeDeleteTest.java
index 360c02c..467916e 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeDeleteTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeDeleteTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -54,12 +54,10 @@
     protected AbstractRTreeTestContext createTestContext(ISerializerDeserializer[] fieldSerdes,
             IPrimitiveValueProviderFactory[] valueProviderFactories, int numKeys, RTreePolicyType rtreePolicyType)
             throws Exception {
-        return LSMRTreeTestContext.create(harness.getMemBufferCache(), harness.getMemFreePageManager(),
-                harness.getIOManager(), harness.getFileReference(), harness.getDiskBufferCache(),
-                harness.getDiskFileMapProvider(), fieldSerdes, valueProviderFactories, numKeys, rtreePolicyType,
-                harness.getBoomFilterFalsePositiveRate(), harness.getMergePolicy(),
-                harness.getOperationTrackerFactory(), harness.getIOScheduler(),
-                harness.getIOOperationCallbackProvider(), harness.getIODeviceId());
+        return LSMRTreeTestContext.create(harness.getVirtualBufferCache(), harness.getFileReference(),
+                harness.getDiskBufferCache(), harness.getDiskFileMapProvider(), fieldSerdes, valueProviderFactories,
+                numKeys, rtreePolicyType, harness.getBoomFilterFalsePositiveRate(), harness.getMergePolicy(),
+                harness.getOperationTracker(), harness.getIOScheduler(), harness.getIOOperationCallbackProvider());
     }
 
     @Override
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeExamplesTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeExamplesTest.java
index 0c68fa6..a35170c 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeExamplesTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeExamplesTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -37,13 +37,12 @@
     protected ITreeIndex createTreeIndex(ITypeTraits[] typeTraits, IBinaryComparatorFactory[] rtreeCmpFactories,
             IBinaryComparatorFactory[] btreeCmpFactories, IPrimitiveValueProviderFactory[] valueProviderFactories,
             RTreePolicyType rtreePolicyType) throws TreeIndexException {
-        return LSMRTreeUtils.createLSMTree(harness.getMemBufferCache(), harness.getMemFreePageManager(),
-                harness.getIOManager(), harness.getFileReference(), harness.getDiskBufferCache(),
-                harness.getDiskFileMapProvider(), typeTraits, rtreeCmpFactories, btreeCmpFactories,
-                valueProviderFactories, rtreePolicyType, harness.getBoomFilterFalsePositiveRate(),
-                harness.getMergePolicy(), harness.getOperationTrackerFactory(), harness.getIOScheduler(),
+        return LSMRTreeUtils.createLSMTree(harness.getVirtualBufferCache(), harness.getFileReference(),
+                harness.getDiskBufferCache(), harness.getDiskFileMapProvider(), typeTraits, rtreeCmpFactories,
+                btreeCmpFactories, valueProviderFactories, rtreePolicyType, harness.getBoomFilterFalsePositiveRate(),
+                harness.getMergePolicy(), harness.getOperationTracker(), harness.getIOScheduler(),
                 harness.getIOOperationCallbackProvider(),
-                LSMRTreeUtils.proposeBestLinearizer(typeTraits, rtreeCmpFactories.length), harness.getIODeviceId());
+                LSMRTreeUtils.proposeBestLinearizer(typeTraits, rtreeCmpFactories.length));
     }
 
     @Before
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeInsertTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeInsertTest.java
index f39b139..44da0c0 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeInsertTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeInsertTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -54,12 +54,10 @@
     protected AbstractRTreeTestContext createTestContext(ISerializerDeserializer[] fieldSerdes,
             IPrimitiveValueProviderFactory[] valueProviderFactories, int numKeys, RTreePolicyType rtreePolicyType)
             throws Exception {
-        return LSMRTreeTestContext.create(harness.getMemBufferCache(), harness.getMemFreePageManager(),
-                harness.getIOManager(), harness.getFileReference(), harness.getDiskBufferCache(),
-                harness.getDiskFileMapProvider(), fieldSerdes, valueProviderFactories, numKeys, rtreePolicyType,
-                harness.getBoomFilterFalsePositiveRate(), harness.getMergePolicy(),
-                harness.getOperationTrackerFactory(), harness.getIOScheduler(),
-                harness.getIOOperationCallbackProvider(), harness.getIODeviceId());
+        return LSMRTreeTestContext.create(harness.getVirtualBufferCache(), harness.getFileReference(),
+                harness.getDiskBufferCache(), harness.getDiskFileMapProvider(), fieldSerdes, valueProviderFactories,
+                numKeys, rtreePolicyType, harness.getBoomFilterFalsePositiveRate(), harness.getMergePolicy(),
+                harness.getOperationTracker(), harness.getIOScheduler(), harness.getIOOperationCallbackProvider());
     }
 
     @Override
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeLifecycleTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeLifecycleTest.java
index 8bee460..b97bebb 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeLifecycleTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeLifecycleTest.java
@@ -1,8 +1,21 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.rtree;
 
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.io.FileReference;
-import edu.uci.ics.hyracks.api.io.IODeviceHandle;
 import edu.uci.ics.hyracks.data.std.primitive.IntegerPointable;
 import edu.uci.ics.hyracks.dataflow.common.data.marshalling.IntegerSerializerDeserializer;
 import edu.uci.ics.hyracks.storage.am.common.AbstractIndexLifecycleTest;
@@ -36,10 +49,8 @@
     @Override
     protected boolean persistentStateExists() throws Exception {
         // make sure all of the directories exist
-        for (IODeviceHandle handle : harness.getIOManager().getIODevices()) {
-            if (!new FileReference(handle, harness.getFileReference().getFile().getPath()).getFile().exists()) {
-                return false;
-            }
+        if (!new FileReference(harness.getFileReference().getFile()).getFile().exists()) {
+            return false;
         }
         return true;
     }
@@ -52,19 +63,21 @@
     @Override
     public void setup() throws Exception {
         harness.setUp();
-        testCtx = LSMRTreeTestContext.create(harness.getMemBufferCache(), harness.getMemFreePageManager(),
-                harness.getIOManager(), harness.getFileReference(), harness.getDiskBufferCache(),
-                harness.getDiskFileMapProvider(), fieldSerdes, valueProviderFactories, numKeys, RTreePolicyType.RTREE,
-                harness.getBoomFilterFalsePositiveRate(), harness.getMergePolicy(),
-                harness.getOperationTrackerFactory(), harness.getIOScheduler(),
-                harness.getIOOperationCallbackProvider(), harness.getIODeviceId());
+        testCtx = LSMRTreeTestContext.create(harness.getVirtualBufferCache(), harness.getFileReference(),
+                harness.getDiskBufferCache(), harness.getDiskFileMapProvider(), fieldSerdes, valueProviderFactories,
+                numKeys, RTreePolicyType.RTREE, harness.getBoomFilterFalsePositiveRate(), harness.getMergePolicy(),
+                harness.getOperationTracker(), harness.getIOScheduler(), harness.getIOOperationCallbackProvider());
         index = testCtx.getIndex();
     }
 
     @Override
     public void tearDown() throws Exception {
-        index.deactivate();
-        index.destroy();
+        try {
+            index.deactivate();
+        } catch (Exception e) {
+        } finally {
+            index.destroy();
+        }
         harness.tearDown();
     }
 
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeMergeTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeMergeTest.java
index 5d7d31b..b13ce4d 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeMergeTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeMergeTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -53,12 +53,10 @@
     protected AbstractRTreeTestContext createTestContext(ISerializerDeserializer[] fieldSerdes,
             IPrimitiveValueProviderFactory[] valueProviderFactories, int numKeys, RTreePolicyType rtreePolicyType)
             throws Exception {
-        return LSMRTreeTestContext.create(harness.getMemBufferCache(), harness.getMemFreePageManager(),
-                harness.getIOManager(), harness.getFileReference(), harness.getDiskBufferCache(),
-                harness.getDiskFileMapProvider(), fieldSerdes, valueProviderFactories, numKeys, rtreePolicyType,
-                harness.getBoomFilterFalsePositiveRate(), harness.getMergePolicy(),
-                harness.getOperationTrackerFactory(), harness.getIOScheduler(),
-                harness.getIOOperationCallbackProvider(), harness.getIODeviceId());
+        return LSMRTreeTestContext.create(harness.getVirtualBufferCache(), harness.getFileReference(),
+                harness.getDiskBufferCache(), harness.getDiskFileMapProvider(), fieldSerdes, valueProviderFactories,
+                numKeys, rtreePolicyType, harness.getBoomFilterFalsePositiveRate(), harness.getMergePolicy(),
+                harness.getOperationTracker(), harness.getIOScheduler(), harness.getIOOperationCallbackProvider());
     }
 
     @Override
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeMergeTestDriver.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeMergeTestDriver.java
index f272942..18528c4 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeMergeTestDriver.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeMergeTestDriver.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -59,9 +59,15 @@
         for (int i = 0; i < maxTreesToMerge; i++) {
             for (int j = 0; j < i; j++) {
                 if (fieldSerdes[0] instanceof IntegerSerializerDeserializer) {
-                    rTreeTestUtils.bulkLoadIntTuples(ctx, numTuplesToInsert, getRandom());
+                    rTreeTestUtils.insertIntTuples(ctx, numTuplesToInsert, getRandom());
+                    // Deactivate and the re-activate the index to force it flush its in memory component
+                    ctx.getIndex().deactivate();
+                    ctx.getIndex().activate();
                 } else if (fieldSerdes[0] instanceof DoubleSerializerDeserializer) {
-                    rTreeTestUtils.bulkLoadDoubleTuples(ctx, numTuplesToInsert, getRandom());
+                    rTreeTestUtils.insertDoubleTuples(ctx, numTuplesToInsert, getRandom());
+                    // Deactivate and the re-activate the index to force it flush its in memory component
+                    ctx.getIndex().deactivate();
+                    ctx.getIndex().activate();
                 }
             }
 
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeMultiBulkLoadTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeMultiBulkLoadTest.java
deleted file mode 100644
index 8ef0a9f..0000000
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeMultiBulkLoadTest.java
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
- * Copyright 2009-2010 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package edu.uci.ics.hyracks.storage.am.lsm.rtree;
-
-import java.util.Random;
-
-import org.junit.After;
-import org.junit.Before;
-
-import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.api.exceptions.HyracksException;
-import edu.uci.ics.hyracks.storage.am.common.api.IPrimitiveValueProviderFactory;
-import edu.uci.ics.hyracks.storage.am.config.AccessMethodTestsConfig;
-import edu.uci.ics.hyracks.storage.am.lsm.rtree.util.LSMRTreeTestContext;
-import edu.uci.ics.hyracks.storage.am.lsm.rtree.util.LSMRTreeTestHarness;
-import edu.uci.ics.hyracks.storage.am.rtree.AbstractRTreeBulkLoadTest;
-import edu.uci.ics.hyracks.storage.am.rtree.AbstractRTreeTestContext;
-import edu.uci.ics.hyracks.storage.am.rtree.frames.RTreePolicyType;
-
-@SuppressWarnings("rawtypes")
-public class LSMRTreeMultiBulkLoadTest extends AbstractRTreeBulkLoadTest {
-
-    public LSMRTreeMultiBulkLoadTest() {
-        super(AccessMethodTestsConfig.LSM_RTREE_BULKLOAD_ROUNDS, AccessMethodTestsConfig.LSM_RTREE_TEST_RSTAR_POLICY);
-    }
-
-    private final LSMRTreeTestHarness harness = new LSMRTreeTestHarness();
-
-    @Before
-    public void setUp() throws HyracksException {
-        harness.setUp();
-    }
-
-    @After
-    public void tearDown() throws HyracksDataException {
-        harness.tearDown();
-    }
-
-    @Override
-    protected AbstractRTreeTestContext createTestContext(ISerializerDeserializer[] fieldSerdes,
-            IPrimitiveValueProviderFactory[] valueProviderFactories, int numKeys, RTreePolicyType rtreePolicyType)
-            throws Exception {
-        return LSMRTreeTestContext.create(harness.getMemBufferCache(), harness.getMemFreePageManager(),
-                harness.getIOManager(), harness.getFileReference(), harness.getDiskBufferCache(),
-                harness.getDiskFileMapProvider(), fieldSerdes, valueProviderFactories, numKeys, rtreePolicyType,
-                harness.getBoomFilterFalsePositiveRate(), harness.getMergePolicy(),
-                harness.getOperationTrackerFactory(), harness.getIOScheduler(),
-                harness.getIOOperationCallbackProvider(), harness.getIODeviceId());
-    }
-
-    @Override
-    protected Random getRandom() {
-        return harness.getRandom();
-    }
-}
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesBulkLoadTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesBulkLoadTest.java
index f778aa9..2baf485 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesBulkLoadTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesBulkLoadTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -35,7 +35,7 @@
 public class LSMRTreeWithAntiMatterTuplesBulkLoadTest extends AbstractRTreeBulkLoadTest {
 
     public LSMRTreeWithAntiMatterTuplesBulkLoadTest() {
-        super(1, AccessMethodTestsConfig.LSM_RTREE_TEST_RSTAR_POLICY);
+        super(AccessMethodTestsConfig.LSM_RTREE_TEST_RSTAR_POLICY);
     }
 
     private final LSMRTreeTestHarness harness = new LSMRTreeTestHarness();
@@ -54,12 +54,10 @@
     protected AbstractRTreeTestContext createTestContext(ISerializerDeserializer[] fieldSerdes,
             IPrimitiveValueProviderFactory[] valueProviderFactories, int numKeys, RTreePolicyType rtreePolicyType)
             throws Exception {
-        return LSMRTreeWithAntiMatterTuplesTestContext.create(harness.getMemBufferCache(),
-                harness.getMemFreePageManager(), harness.getIOManager(), harness.getFileReference(),
-                harness.getDiskBufferCache(), harness.getDiskFileMapProvider(), fieldSerdes, valueProviderFactories,
-                numKeys, rtreePolicyType, harness.getMergePolicy(), harness.getOperationTrackerFactory(),
-                harness.getIOScheduler(), harness.getIOOperationCallbackProvider(), harness.getIODeviceId());
-
+        return LSMRTreeWithAntiMatterTuplesTestContext.create(harness.getVirtualBufferCache(),
+                harness.getFileReference(), harness.getDiskBufferCache(), harness.getDiskFileMapProvider(),
+                fieldSerdes, valueProviderFactories, numKeys, rtreePolicyType, harness.getMergePolicy(),
+                harness.getOperationTracker(), harness.getIOScheduler(), harness.getIOOperationCallbackProvider());
     }
 
     @Override
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesDeleteTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesDeleteTest.java
index 44d3d1b..9c440cc 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesDeleteTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesDeleteTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -54,12 +54,10 @@
     protected AbstractRTreeTestContext createTestContext(ISerializerDeserializer[] fieldSerdes,
             IPrimitiveValueProviderFactory[] valueProviderFactories, int numKeys, RTreePolicyType rtreePolicyType)
             throws Exception {
-        return LSMRTreeWithAntiMatterTuplesTestContext.create(harness.getMemBufferCache(),
-                harness.getMemFreePageManager(), harness.getIOManager(), harness.getFileReference(),
-                harness.getDiskBufferCache(), harness.getDiskFileMapProvider(), fieldSerdes, valueProviderFactories,
-                numKeys, rtreePolicyType, harness.getMergePolicy(), harness.getOperationTrackerFactory(),
-                harness.getIOScheduler(), harness.getIOOperationCallbackProvider(), harness.getIODeviceId());
-
+        return LSMRTreeWithAntiMatterTuplesTestContext.create(harness.getVirtualBufferCache(),
+                harness.getFileReference(), harness.getDiskBufferCache(), harness.getDiskFileMapProvider(),
+                fieldSerdes, valueProviderFactories, numKeys, rtreePolicyType, harness.getMergePolicy(),
+                harness.getOperationTracker(), harness.getIOScheduler(), harness.getIOOperationCallbackProvider());
     }
 
     @Override
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesExamplesTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesExamplesTest.java
index 8b12224..909d0cd 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesExamplesTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesExamplesTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -37,13 +37,12 @@
     protected ITreeIndex createTreeIndex(ITypeTraits[] typeTraits, IBinaryComparatorFactory[] rtreeCmpFactories,
             IBinaryComparatorFactory[] btreeCmpFactories, IPrimitiveValueProviderFactory[] valueProviderFactories,
             RTreePolicyType rtreePolicyType) throws TreeIndexException {
-        return LSMRTreeUtils.createLSMTreeWithAntiMatterTuples(harness.getMemBufferCache(),
-                harness.getMemFreePageManager(), harness.getIOManager(), harness.getFileReference(),
-                harness.getDiskBufferCache(), harness.getDiskFileMapProvider(), typeTraits, rtreeCmpFactories,
-                btreeCmpFactories, valueProviderFactories, rtreePolicyType, harness.getMergePolicy(),
-                harness.getOperationTrackerFactory(), harness.getIOScheduler(),
+        return LSMRTreeUtils.createLSMTreeWithAntiMatterTuples(harness.getVirtualBufferCache(),
+                harness.getFileReference(), harness.getDiskBufferCache(), harness.getDiskFileMapProvider(), typeTraits,
+                rtreeCmpFactories, btreeCmpFactories, valueProviderFactories, rtreePolicyType,
+                harness.getMergePolicy(), harness.getOperationTracker(), harness.getIOScheduler(),
                 harness.getIOOperationCallbackProvider(),
-                LSMRTreeUtils.proposeBestLinearizer(typeTraits, rtreeCmpFactories.length), harness.getIODeviceId());
+                LSMRTreeUtils.proposeBestLinearizer(typeTraits, rtreeCmpFactories.length));
     }
 
     @Before
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesInsertTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesInsertTest.java
index 96ef868..6b35192 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesInsertTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesInsertTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -54,12 +54,10 @@
     protected AbstractRTreeTestContext createTestContext(ISerializerDeserializer[] fieldSerdes,
             IPrimitiveValueProviderFactory[] valueProviderFactories, int numKeys, RTreePolicyType rtreePolicyType)
             throws Exception {
-        return LSMRTreeWithAntiMatterTuplesTestContext.create(harness.getMemBufferCache(),
-                harness.getMemFreePageManager(), harness.getIOManager(), harness.getFileReference(),
-                harness.getDiskBufferCache(), harness.getDiskFileMapProvider(), fieldSerdes, valueProviderFactories,
-                numKeys, rtreePolicyType, harness.getMergePolicy(), harness.getOperationTrackerFactory(),
-                harness.getIOScheduler(), harness.getIOOperationCallbackProvider(), harness.getIODeviceId());
-
+        return LSMRTreeWithAntiMatterTuplesTestContext.create(harness.getVirtualBufferCache(),
+                harness.getFileReference(), harness.getDiskBufferCache(), harness.getDiskFileMapProvider(),
+                fieldSerdes, valueProviderFactories, numKeys, rtreePolicyType, harness.getMergePolicy(),
+                harness.getOperationTracker(), harness.getIOScheduler(), harness.getIOOperationCallbackProvider());
     }
 
     @Override
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesLifecycleTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesLifecycleTest.java
index 012559d..6dcbdf2 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesLifecycleTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesLifecycleTest.java
@@ -1,8 +1,21 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.lsm.rtree;
 
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.io.FileReference;
-import edu.uci.ics.hyracks.api.io.IODeviceHandle;
 import edu.uci.ics.hyracks.data.std.primitive.IntegerPointable;
 import edu.uci.ics.hyracks.dataflow.common.data.marshalling.IntegerSerializerDeserializer;
 import edu.uci.ics.hyracks.storage.am.common.AbstractIndexLifecycleTest;
@@ -36,10 +49,8 @@
     @Override
     protected boolean persistentStateExists() throws Exception {
         // make sure all of the directories exist
-        for (IODeviceHandle handle : harness.getIOManager().getIODevices()) {
-            if (!new FileReference(handle, harness.getFileReference().getFile().getPath()).getFile().exists()) {
-                return false;
-            }
+        if (!new FileReference(harness.getFileReference().getFile()).getFile().exists()) {
+            return false;
         }
         return true;
     }
@@ -52,18 +63,21 @@
     @Override
     public void setup() throws Exception {
         harness.setUp();
-        testCtx = LSMRTreeWithAntiMatterTuplesTestContext.create(harness.getMemBufferCache(),
-                harness.getMemFreePageManager(), harness.getIOManager(), harness.getFileReference(),
-                harness.getDiskBufferCache(), harness.getDiskFileMapProvider(), fieldSerdes, valueProviderFactories,
-                numKeys, RTreePolicyType.RTREE, harness.getMergePolicy(), harness.getOperationTrackerFactory(),
-                harness.getIOScheduler(), harness.getIOOperationCallbackProvider(), harness.getIODeviceId());
+        testCtx = LSMRTreeWithAntiMatterTuplesTestContext.create(harness.getVirtualBufferCache(),
+                harness.getFileReference(), harness.getDiskBufferCache(), harness.getDiskFileMapProvider(),
+                fieldSerdes, valueProviderFactories, numKeys, RTreePolicyType.RTREE, harness.getMergePolicy(),
+                harness.getOperationTracker(), harness.getIOScheduler(), harness.getIOOperationCallbackProvider());
         index = testCtx.getIndex();
     }
 
     @Override
     public void tearDown() throws Exception {
-        index.deactivate();
-        index.destroy();
+        try {
+            index.deactivate();
+        } catch (Exception e) {
+        } finally {
+            index.destroy();
+        }
         harness.tearDown();
     }
 
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesMergeTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesMergeTest.java
index 1c67cd0..dc81fc3 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesMergeTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesMergeTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -53,11 +53,10 @@
     protected AbstractRTreeTestContext createTestContext(ISerializerDeserializer[] fieldSerdes,
             IPrimitiveValueProviderFactory[] valueProviderFactories, int numKeys, RTreePolicyType rtreePolicyType)
             throws Exception {
-        return LSMRTreeWithAntiMatterTuplesTestContext.create(harness.getMemBufferCache(),
-                harness.getMemFreePageManager(), harness.getIOManager(), harness.getFileReference(),
-                harness.getDiskBufferCache(), harness.getDiskFileMapProvider(), fieldSerdes, valueProviderFactories,
-                numKeys, rtreePolicyType, harness.getMergePolicy(), harness.getOperationTrackerFactory(),
-                harness.getIOScheduler(), harness.getIOOperationCallbackProvider(), harness.getIODeviceId());
+        return LSMRTreeWithAntiMatterTuplesTestContext.create(harness.getVirtualBufferCache(),
+                harness.getFileReference(), harness.getDiskBufferCache(), harness.getDiskFileMapProvider(),
+                fieldSerdes, valueProviderFactories, numKeys, rtreePolicyType, harness.getMergePolicy(),
+                harness.getOperationTracker(), harness.getIOScheduler(), harness.getIOOperationCallbackProvider());
     }
 
     @Override
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesMultiBulkLoadTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesMultiBulkLoadTest.java
deleted file mode 100644
index fe61afd..0000000
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/LSMRTreeWithAntiMatterTuplesMultiBulkLoadTest.java
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
- * Copyright 2009-2010 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package edu.uci.ics.hyracks.storage.am.lsm.rtree;
-
-import java.util.Random;
-
-import org.junit.After;
-import org.junit.Before;
-
-import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-import edu.uci.ics.hyracks.api.exceptions.HyracksException;
-import edu.uci.ics.hyracks.storage.am.common.api.IPrimitiveValueProviderFactory;
-import edu.uci.ics.hyracks.storage.am.config.AccessMethodTestsConfig;
-import edu.uci.ics.hyracks.storage.am.lsm.rtree.util.LSMRTreeTestHarness;
-import edu.uci.ics.hyracks.storage.am.lsm.rtree.util.LSMRTreeWithAntiMatterTuplesTestContext;
-import edu.uci.ics.hyracks.storage.am.rtree.AbstractRTreeBulkLoadTest;
-import edu.uci.ics.hyracks.storage.am.rtree.AbstractRTreeTestContext;
-import edu.uci.ics.hyracks.storage.am.rtree.frames.RTreePolicyType;
-
-@SuppressWarnings("rawtypes")
-public class LSMRTreeWithAntiMatterTuplesMultiBulkLoadTest extends AbstractRTreeBulkLoadTest {
-
-    public LSMRTreeWithAntiMatterTuplesMultiBulkLoadTest() {
-        super(AccessMethodTestsConfig.LSM_RTREE_BULKLOAD_ROUNDS, AccessMethodTestsConfig.LSM_RTREE_TEST_RSTAR_POLICY);
-    }
-
-    private final LSMRTreeTestHarness harness = new LSMRTreeTestHarness();
-
-    @Before
-    public void setUp() throws HyracksException {
-        harness.setUp();
-    }
-
-    @After
-    public void tearDown() throws HyracksDataException {
-        harness.tearDown();
-    }
-
-    @Override
-    protected AbstractRTreeTestContext createTestContext(ISerializerDeserializer[] fieldSerdes,
-            IPrimitiveValueProviderFactory[] valueProviderFactories, int numKeys, RTreePolicyType rtreePolicyType)
-            throws Exception {
-        return LSMRTreeWithAntiMatterTuplesTestContext.create(harness.getMemBufferCache(),
-                harness.getMemFreePageManager(), harness.getIOManager(), harness.getFileReference(),
-                harness.getDiskBufferCache(), harness.getDiskFileMapProvider(), fieldSerdes, valueProviderFactories,
-                numKeys, rtreePolicyType, harness.getMergePolicy(), harness.getOperationTrackerFactory(),
-                harness.getIOScheduler(), harness.getIOOperationCallbackProvider(), harness.getIODeviceId());
-
-    }
-
-    @Override
-    protected Random getRandom() {
-        return harness.getRandom();
-    }
-}
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/multithread/AbstractLSMRTreeTestWorker.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/multithread/AbstractLSMRTreeTestWorker.java
index e34c64e..710d181 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/multithread/AbstractLSMRTreeTestWorker.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/multithread/AbstractLSMRTreeTestWorker.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/multithread/LSMRTreeMultiThreadTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/multithread/LSMRTreeMultiThreadTest.java
index 1d2271c..850d540 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/multithread/LSMRTreeMultiThreadTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/multithread/LSMRTreeMultiThreadTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -57,13 +57,12 @@
     protected ITreeIndex createTreeIndex(ITypeTraits[] typeTraits, IBinaryComparatorFactory[] rtreeCmpFactories,
             IBinaryComparatorFactory[] btreeCmpFactories, IPrimitiveValueProviderFactory[] valueProviderFactories,
             RTreePolicyType rtreePolicyType) throws TreeIndexException {
-        return LSMRTreeUtils.createLSMTree(harness.getMemBufferCache(), harness.getMemFreePageManager(),
-                harness.getIOManager(), harness.getFileReference(), harness.getDiskBufferCache(),
-                harness.getDiskFileMapProvider(), typeTraits, rtreeCmpFactories, btreeCmpFactories,
-                valueProviderFactories, rtreePolicyType, harness.getBoomFilterFalsePositiveRate(),
-                harness.getMergePolicy(), harness.getOperationTrackerFactory(), harness.getIOScheduler(),
+        return LSMRTreeUtils.createLSMTree(harness.getVirtualBufferCache(), harness.getFileReference(),
+                harness.getDiskBufferCache(), harness.getDiskFileMapProvider(), typeTraits, rtreeCmpFactories,
+                btreeCmpFactories, valueProviderFactories, rtreePolicyType, harness.getBoomFilterFalsePositiveRate(),
+                harness.getMergePolicy(), harness.getOperationTracker(), harness.getIOScheduler(),
                 harness.getIOOperationCallbackProvider(),
-                LSMRTreeUtils.proposeBestLinearizer(typeTraits, rtreeCmpFactories.length), harness.getIODeviceId());
+                LSMRTreeUtils.proposeBestLinearizer(typeTraits, rtreeCmpFactories.length));
     }
 
     @Override
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/multithread/LSMRTreeTestWorker.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/multithread/LSMRTreeTestWorker.java
index 2294139..b3fddc8 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/multithread/LSMRTreeTestWorker.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/multithread/LSMRTreeTestWorker.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/multithread/LSMRTreeTestWorkerFactory.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/multithread/LSMRTreeTestWorkerFactory.java
index 50f93a7..2df1747 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/multithread/LSMRTreeTestWorkerFactory.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/multithread/LSMRTreeTestWorkerFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/multithread/LSMRTreeWithAntiMatterTuplesMultiThreadTest.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/multithread/LSMRTreeWithAntiMatterTuplesMultiThreadTest.java
index aa5023d..4a6b462 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/multithread/LSMRTreeWithAntiMatterTuplesMultiThreadTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/multithread/LSMRTreeWithAntiMatterTuplesMultiThreadTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -57,13 +57,12 @@
     protected ITreeIndex createTreeIndex(ITypeTraits[] typeTraits, IBinaryComparatorFactory[] rtreeCmpFactories,
             IBinaryComparatorFactory[] btreeCmpFactories, IPrimitiveValueProviderFactory[] valueProviderFactories,
             RTreePolicyType rtreePolicyType) throws TreeIndexException {
-        return LSMRTreeUtils.createLSMTreeWithAntiMatterTuples(harness.getMemBufferCache(),
-                harness.getMemFreePageManager(), harness.getIOManager(), harness.getFileReference(),
-                harness.getDiskBufferCache(), harness.getDiskFileMapProvider(), typeTraits, rtreeCmpFactories,
-                btreeCmpFactories, valueProviderFactories, rtreePolicyType, harness.getMergePolicy(),
-                harness.getOperationTrackerFactory(), harness.getIOScheduler(),
+        return LSMRTreeUtils.createLSMTreeWithAntiMatterTuples(harness.getVirtualBufferCache(),
+                harness.getFileReference(), harness.getDiskBufferCache(), harness.getDiskFileMapProvider(), typeTraits,
+                rtreeCmpFactories, btreeCmpFactories, valueProviderFactories, rtreePolicyType,
+                harness.getMergePolicy(), harness.getOperationTracker(), harness.getIOScheduler(),
                 harness.getIOOperationCallbackProvider(),
-                LSMRTreeUtils.proposeBestLinearizer(typeTraits, rtreeCmpFactories.length), harness.getIODeviceId());
+                LSMRTreeUtils.proposeBestLinearizer(typeTraits, rtreeCmpFactories.length));
 
     }
 
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/multithread/LSMRTreeWithAntiMatterTuplesTestWorker.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/multithread/LSMRTreeWithAntiMatterTuplesTestWorker.java
index d9276f8..12d7742 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/multithread/LSMRTreeWithAntiMatterTuplesTestWorker.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/multithread/LSMRTreeWithAntiMatterTuplesTestWorker.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/multithread/LSMRTreeWithAntiMatterTuplesTestWorkerFactory.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/multithread/LSMRTreeWithAntiMatterTuplesTestWorkerFactory.java
index 545f325..cf3ac02 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/multithread/LSMRTreeWithAntiMatterTuplesTestWorkerFactory.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/multithread/LSMRTreeWithAntiMatterTuplesTestWorkerFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/util/LSMRTreeTestContext.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/util/LSMRTreeTestContext.java
index cd2b31f..8c59e31 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/util/LSMRTreeTestContext.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/util/LSMRTreeTestContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -22,16 +22,14 @@
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.api.io.FileReference;
-import edu.uci.ics.hyracks.control.nc.io.IOManager;
 import edu.uci.ics.hyracks.dataflow.common.util.SerdeUtils;
-import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
 import edu.uci.ics.hyracks.storage.am.common.api.IPrimitiveValueProviderFactory;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndex;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.IInMemoryBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationScheduler;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicy;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTracker;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.rtree.impls.LSMRTree;
 import edu.uci.ics.hyracks.storage.am.lsm.rtree.utils.LSMRTreeUtils;
 import edu.uci.ics.hyracks.storage.am.rtree.AbstractRTreeTestContext;
@@ -68,23 +66,21 @@
         return lsmTree.getComparatorFactories();
     }
 
-    public static LSMRTreeTestContext create(IInMemoryBufferCache memBufferCache,
-            IInMemoryFreePageManager memFreePageManager, IOManager ioManager, FileReference file,
+    public static LSMRTreeTestContext create(IVirtualBufferCache virtualBufferCache, FileReference file,
             IBufferCache diskBufferCache, IFileMapProvider diskFileMapProvider, ISerializerDeserializer[] fieldSerdes,
             IPrimitiveValueProviderFactory[] valueProviderFactories, int numKeyFields, RTreePolicyType rtreePolicyType,
-            double bloomFilterFalsePositiveRate, ILSMMergePolicy mergePolicy,
-            ILSMOperationTrackerFactory opTrackerFactory, ILSMIOOperationScheduler ioScheduler,
-            ILSMIOOperationCallbackProvider ioOpCallbackProvider, int ioDeviceId) throws Exception {
+            double bloomFilterFalsePositiveRate, ILSMMergePolicy mergePolicy, ILSMOperationTracker opTracker,
+            ILSMIOOperationScheduler ioScheduler, ILSMIOOperationCallbackProvider ioOpCallbackProvider)
+            throws Exception {
         ITypeTraits[] typeTraits = SerdeUtils.serdesToTypeTraits(fieldSerdes);
         IBinaryComparatorFactory[] rtreeCmpFactories = SerdeUtils
                 .serdesToComparatorFactories(fieldSerdes, numKeyFields);
         IBinaryComparatorFactory[] btreeCmpFactories = SerdeUtils.serdesToComparatorFactories(fieldSerdes,
                 fieldSerdes.length);
-        LSMRTree lsmTree = LSMRTreeUtils.createLSMTree(memBufferCache, memFreePageManager, ioManager, file,
-                diskBufferCache, diskFileMapProvider, typeTraits, rtreeCmpFactories, btreeCmpFactories,
-                valueProviderFactories, rtreePolicyType, bloomFilterFalsePositiveRate, mergePolicy, opTrackerFactory,
-                ioScheduler, ioOpCallbackProvider,
-                LSMRTreeUtils.proposeBestLinearizer(typeTraits, rtreeCmpFactories.length), ioDeviceId);
+        LSMRTree lsmTree = LSMRTreeUtils.createLSMTree(virtualBufferCache, file, diskBufferCache, diskFileMapProvider,
+                typeTraits, rtreeCmpFactories, btreeCmpFactories, valueProviderFactories, rtreePolicyType,
+                bloomFilterFalsePositiveRate, mergePolicy, opTracker, ioScheduler, ioOpCallbackProvider,
+                LSMRTreeUtils.proposeBestLinearizer(typeTraits, rtreeCmpFactories.length));
         LSMRTreeTestContext testCtx = new LSMRTreeTestContext(fieldSerdes, lsmTree);
         return testCtx;
     }
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/util/LSMRTreeTestHarness.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/util/LSMRTreeTestHarness.java
index 4c2e83b..118b1bc 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/util/LSMRTreeTestHarness.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/util/LSMRTreeTestHarness.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -28,20 +28,17 @@
 import edu.uci.ics.hyracks.api.io.FileReference;
 import edu.uci.ics.hyracks.api.io.IODeviceHandle;
 import edu.uci.ics.hyracks.control.nc.io.IOManager;
-import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
-import edu.uci.ics.hyracks.storage.am.common.frames.LIFOMetaDataFrameFactory;
 import edu.uci.ics.hyracks.storage.am.config.AccessMethodTestsConfig;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.IInMemoryBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationScheduler;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicy;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
-import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.DualIndexInMemoryBufferCache;
-import edu.uci.ics.hyracks.storage.am.lsm.common.freepage.DualIndexInMemoryFreePageManager;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTracker;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.NoMergePolicy;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.NoOpIOOperationCallback;
 import edu.uci.ics.hyracks.storage.am.lsm.common.impls.SynchronousScheduler;
-import edu.uci.ics.hyracks.storage.am.lsm.common.impls.ThreadCountingOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.impls.ThreadCountingTracker;
+import edu.uci.ics.hyracks.storage.am.lsm.common.impls.VirtualBufferCache;
 import edu.uci.ics.hyracks.storage.common.buffercache.HeapBufferAllocator;
 import edu.uci.ics.hyracks.storage.common.buffercache.IBufferCache;
 import edu.uci.ics.hyracks.storage.common.file.IFileMapProvider;
@@ -65,13 +62,12 @@
     protected int ioDeviceId;
     protected IBufferCache diskBufferCache;
     protected IFileMapProvider diskFileMapProvider;
-    protected IInMemoryBufferCache memBufferCache;
-    protected IInMemoryFreePageManager memFreePageManager;
+    protected IVirtualBufferCache virtualBufferCache;
     protected IHyracksTaskContext ctx;
     protected ILSMIOOperationScheduler ioScheduler;
     protected ILSMIOOperationCallbackProvider ioOpCallbackProvider;
     protected ILSMMergePolicy mergePolicy;
-    protected ILSMOperationTrackerFactory opTrackerFactory;
+    protected ILSMOperationTracker opTracker;
 
     protected final Random rnd = new Random();
     protected final static SimpleDateFormat simpleDateFormat = new SimpleDateFormat("ddMMyy-hhmmssSS");
@@ -89,7 +85,7 @@
         this.hyracksFrameSize = AccessMethodTestsConfig.LSM_RTREE_HYRACKS_FRAME_SIZE;
         this.ioScheduler = SynchronousScheduler.INSTANCE;
         this.mergePolicy = NoMergePolicy.INSTANCE;
-        this.opTrackerFactory = ThreadCountingOperationTrackerFactory.INSTANCE;
+        this.opTracker = new ThreadCountingTracker();
         this.ioOpCallbackProvider = NoOpIOOperationCallback.INSTANCE;
     }
 
@@ -104,40 +100,38 @@
         this.hyracksFrameSize = hyracksFrameSize;
         this.ioScheduler = SynchronousScheduler.INSTANCE;
         this.mergePolicy = NoMergePolicy.INSTANCE;
-        this.opTrackerFactory = ThreadCountingOperationTrackerFactory.INSTANCE;
+        this.opTracker = new ThreadCountingTracker();
     }
 
     public void setUp() throws HyracksException {
-        onDiskDir = "lsm_rtree_" + simpleDateFormat.format(new Date()) + sep;
+        ioManager = TestStorageManagerComponentHolder.getIOManager();
+        ioDeviceId = 0;
+        onDiskDir = ioManager.getIODevices().get(ioDeviceId).getPath() + sep + "lsm_rtree_"
+                + simpleDateFormat.format(new Date()) + sep;
         file = new FileReference(new File(onDiskDir));
         ctx = TestUtils.create(getHyracksFrameSize());
         TestStorageManagerComponentHolder.init(diskPageSize, diskNumPages, diskMaxOpenFiles);
         diskBufferCache = TestStorageManagerComponentHolder.getBufferCache(ctx);
         diskFileMapProvider = TestStorageManagerComponentHolder.getFileMapProvider(ctx);
-        memBufferCache = new DualIndexInMemoryBufferCache(new HeapBufferAllocator(), memPageSize, memNumPages);
-        memFreePageManager = new DualIndexInMemoryFreePageManager(memNumPages, new LIFOMetaDataFrameFactory());
-        ioManager = TestStorageManagerComponentHolder.getIOManager();
-        ioDeviceId = 0;
+        virtualBufferCache = new VirtualBufferCache(new HeapBufferAllocator(), memPageSize, memNumPages);
         rnd.setSeed(RANDOM_SEED);
     }
 
     public void tearDown() throws HyracksDataException {
         diskBufferCache.close();
-        for (IODeviceHandle dev : ioManager.getIODevices()) {
-            File dir = new File(dev.getPath(), onDiskDir);
-            FilenameFilter filter = new FilenameFilter() {
-                public boolean accept(File dir, String name) {
-                    return !name.startsWith(".");
-                }
-            };
-            String[] files = dir.list(filter);
-            if (files != null) {
-                for (String fileName : files) {
-                    File file = new File(dir.getPath() + File.separator + fileName);
-                    file.delete();
-                }
+        IODeviceHandle dev = ioManager.getIODevices().get(ioDeviceId);
+        File dir = new File(dev.getPath(), onDiskDir);
+        FilenameFilter filter = new FilenameFilter() {
+            public boolean accept(File dir, String name) {
+                return !name.startsWith(".");
             }
-            dir.delete();
+        };
+        String[] files = dir.list(filter);
+        if (files != null) {
+            for (String fileName : files) {
+                File file = new File(dir.getPath() + File.separator + fileName);
+                file.delete();
+            }
         }
     }
 
@@ -181,18 +175,14 @@
         return diskFileMapProvider;
     }
 
-    public IInMemoryBufferCache getMemBufferCache() {
-        return memBufferCache;
+    public IVirtualBufferCache getVirtualBufferCache() {
+        return virtualBufferCache;
     }
 
     public double getBoomFilterFalsePositiveRate() {
         return bloomFilterFalsePositiveRate;
     }
 
-    public IInMemoryFreePageManager getMemFreePageManager() {
-        return memFreePageManager;
-    }
-
     public IHyracksTaskContext getHyracksTastContext() {
         return ctx;
     }
@@ -213,8 +203,8 @@
         return ioScheduler;
     }
 
-    public ILSMOperationTrackerFactory getOperationTrackerFactory() {
-        return opTrackerFactory;
+    public ILSMOperationTracker getOperationTracker() {
+        return opTracker;
     }
 
     public ILSMMergePolicy getMergePolicy() {
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/util/LSMRTreeWithAntiMatterTuplesTestContext.java b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/util/LSMRTreeWithAntiMatterTuplesTestContext.java
index 1740ff0..95716f6 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/util/LSMRTreeWithAntiMatterTuplesTestContext.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-lsm-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/lsm/rtree/util/LSMRTreeWithAntiMatterTuplesTestContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -22,16 +22,14 @@
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.api.io.FileReference;
-import edu.uci.ics.hyracks.control.nc.io.IOManager;
 import edu.uci.ics.hyracks.dataflow.common.util.SerdeUtils;
-import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
 import edu.uci.ics.hyracks.storage.am.common.api.IPrimitiveValueProviderFactory;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndex;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.IInMemoryBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationScheduler;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicy;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTracker;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
 import edu.uci.ics.hyracks.storage.am.lsm.rtree.impls.LSMRTreeWithAntiMatterTuples;
 import edu.uci.ics.hyracks.storage.am.lsm.rtree.utils.LSMRTreeUtils;
 import edu.uci.ics.hyracks.storage.am.rtree.AbstractRTreeTestContext;
@@ -69,23 +67,21 @@
         return lsmTree.getComparatorFactories();
     }
 
-    public static LSMRTreeWithAntiMatterTuplesTestContext create(IInMemoryBufferCache memBufferCache,
-            IInMemoryFreePageManager memFreePageManager, IOManager ioManager, FileReference file,
-            IBufferCache diskBufferCache, IFileMapProvider diskFileMapProvider, ISerializerDeserializer[] fieldSerdes,
-            IPrimitiveValueProviderFactory[] valueProviderFactories, int numKeyFields, RTreePolicyType rtreePolicyType,
-            ILSMMergePolicy mergePolicy, ILSMOperationTrackerFactory opTrackerFactory,
-            ILSMIOOperationScheduler ioScheduler, ILSMIOOperationCallbackProvider ioOpCallbackProvider, int ioDeviceId)
-            throws Exception {
+    public static LSMRTreeWithAntiMatterTuplesTestContext create(IVirtualBufferCache virtualBufferCache,
+            FileReference file, IBufferCache diskBufferCache, IFileMapProvider diskFileMapProvider,
+            ISerializerDeserializer[] fieldSerdes, IPrimitiveValueProviderFactory[] valueProviderFactories,
+            int numKeyFields, RTreePolicyType rtreePolicyType, ILSMMergePolicy mergePolicy,
+            ILSMOperationTracker opTracker, ILSMIOOperationScheduler ioScheduler,
+            ILSMIOOperationCallbackProvider ioOpCallbackProvider) throws Exception {
         ITypeTraits[] typeTraits = SerdeUtils.serdesToTypeTraits(fieldSerdes);
         IBinaryComparatorFactory[] rtreeCmpFactories = SerdeUtils
                 .serdesToComparatorFactories(fieldSerdes, numKeyFields);
         IBinaryComparatorFactory[] btreeCmpFactories = SerdeUtils.serdesToComparatorFactories(fieldSerdes,
                 fieldSerdes.length);
-        LSMRTreeWithAntiMatterTuples lsmTree = LSMRTreeUtils.createLSMTreeWithAntiMatterTuples(memBufferCache,
-                memFreePageManager, ioManager, file, diskBufferCache, diskFileMapProvider, typeTraits,
-                rtreeCmpFactories, btreeCmpFactories, valueProviderFactories, rtreePolicyType, mergePolicy,
-                opTrackerFactory, ioScheduler, ioOpCallbackProvider,
-                LSMRTreeUtils.proposeBestLinearizer(typeTraits, rtreeCmpFactories.length), ioDeviceId);
+        LSMRTreeWithAntiMatterTuples lsmTree = LSMRTreeUtils.createLSMTreeWithAntiMatterTuples(virtualBufferCache,
+                file, diskBufferCache, diskFileMapProvider, typeTraits, rtreeCmpFactories, btreeCmpFactories,
+                valueProviderFactories, rtreePolicyType, mergePolicy, opTracker, ioScheduler, ioOpCallbackProvider,
+                LSMRTreeUtils.proposeBestLinearizer(typeTraits, rtreeCmpFactories.length));
         LSMRTreeWithAntiMatterTuplesTestContext testCtx = new LSMRTreeWithAntiMatterTuplesTestContext(fieldSerdes,
                 lsmTree);
         return testCtx;
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/pom.xml b/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/pom.xml
index 14adffb..8c5178e 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/pom.xml
+++ b/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-storage-am-rtree-test</artifactId>
@@ -6,7 +20,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks-tests</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -34,14 +48,14 @@
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-storage-am-rtree</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-test-support</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>test</scope>
   	</dependency>
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/RTreeBulkLoadTest.java b/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/RTreeBulkLoadTest.java
index 4eeec1a..4b68ddc 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/RTreeBulkLoadTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/RTreeBulkLoadTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -32,7 +32,7 @@
 public class RTreeBulkLoadTest extends AbstractRTreeBulkLoadTest {
 
     public RTreeBulkLoadTest() {
-        super(1, AccessMethodTestsConfig.RTREE_TEST_RSTAR_POLICY);
+        super(AccessMethodTestsConfig.RTREE_TEST_RSTAR_POLICY);
     }
 
     private final RTreeTestHarness harness = new RTreeTestHarness();
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/RTreeDeleteTest.java b/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/RTreeDeleteTest.java
index f4e45a8..e203f2a 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/RTreeDeleteTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/RTreeDeleteTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/RTreeExamplesTest.java b/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/RTreeExamplesTest.java
index 84c8642..d260ee2 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/RTreeExamplesTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/RTreeExamplesTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/RTreeInsertTest.java b/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/RTreeInsertTest.java
index 065f687..160528e 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/RTreeInsertTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/RTreeInsertTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/RTreeLifecycleTest.java b/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/RTreeLifecycleTest.java
index 69c7e15..b1bce5f 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/RTreeLifecycleTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/RTreeLifecycleTest.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.am.rtree;
 
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
@@ -42,8 +56,12 @@
 
     @Override
     public void tearDown() throws HyracksDataException {
-        testCtx.getIndex().deactivate();
-        testCtx.getIndex().destroy();
+        try {
+            testCtx.getIndex().deactivate();
+        } catch (Exception e) {
+        } finally {
+            testCtx.getIndex().destroy();
+        }
         harness.tearDown();
     }
 
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/RTreeSearchCursorTest.java b/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/RTreeSearchCursorTest.java
index 06d18bb..3818c41 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/RTreeSearchCursorTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/RTreeSearchCursorTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/multithread/RTreeMultiThreadTest.java b/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/multithread/RTreeMultiThreadTest.java
index ee245e8..0730bba 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/multithread/RTreeMultiThreadTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/multithread/RTreeMultiThreadTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/multithread/RTreeTestWorker.java b/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/multithread/RTreeTestWorker.java
index ce4aa73..bc5d331 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/multithread/RTreeTestWorker.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/multithread/RTreeTestWorker.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/multithread/RTreeTestWorkerFactory.java b/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/multithread/RTreeTestWorkerFactory.java
index 8d8d8a9..4d06601 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/multithread/RTreeTestWorkerFactory.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/multithread/RTreeTestWorkerFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/utils/AbstractRTreeTest.java b/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/utils/AbstractRTreeTest.java
index fccb29c..3eb075f 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/utils/AbstractRTreeTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/utils/AbstractRTreeTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/utils/RTreeTestContext.java b/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/utils/RTreeTestContext.java
index 340820e..5968fe9 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/utils/RTreeTestContext.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/utils/RTreeTestContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/utils/RTreeTestHarness.java b/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/utils/RTreeTestHarness.java
index e324a7f..46b2e12 100644
--- a/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/utils/RTreeTestHarness.java
+++ b/hyracks/hyracks-tests/hyracks-storage-am-rtree-test/src/test/java/edu/uci/ics/hyracks/storage/am/rtree/utils/RTreeTestHarness.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-tests/hyracks-storage-common-test/pom.xml b/hyracks/hyracks-tests/hyracks-storage-common-test/pom.xml
index 7f69d25..0930280 100644
--- a/hyracks/hyracks-tests/hyracks-storage-common-test/pom.xml
+++ b/hyracks/hyracks-tests/hyracks-storage-common-test/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-storage-common-test</artifactId>
@@ -6,7 +20,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks-tests</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <build>
@@ -34,13 +48,13 @@
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-storage-common</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<scope>compile</scope>
   	</dependency>
   	<dependency>
   		<groupId>edu.uci.ics.hyracks</groupId>
   		<artifactId>hyracks-test-support</artifactId>
-  		<version>0.2.6-SNAPSHOT</version>
+  		<version>0.2.7-SNAPSHOT</version>
   		<type>jar</type>
   		<scope>compile</scope>
   	</dependency>
diff --git a/hyracks/hyracks-tests/hyracks-storage-common-test/src/test/java/edu/uci/ics/hyracks/storage/common/BufferCacheRegressionTests.java b/hyracks/hyracks-tests/hyracks-storage-common-test/src/test/java/edu/uci/ics/hyracks/storage/common/BufferCacheRegressionTest.java
similarity index 71%
rename from hyracks/hyracks-tests/hyracks-storage-common-test/src/test/java/edu/uci/ics/hyracks/storage/common/BufferCacheRegressionTests.java
rename to hyracks/hyracks-tests/hyracks-storage-common-test/src/test/java/edu/uci/ics/hyracks/storage/common/BufferCacheRegressionTest.java
index a649aa7..577abbb 100644
--- a/hyracks/hyracks-tests/hyracks-storage-common-test/src/test/java/edu/uci/ics/hyracks/storage/common/BufferCacheRegressionTests.java
+++ b/hyracks/hyracks-tests/hyracks-storage-common-test/src/test/java/edu/uci/ics/hyracks/storage/common/BufferCacheRegressionTest.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.common;
 
 import static org.junit.Assert.fail;
@@ -9,7 +23,6 @@
 import org.junit.Test;
 
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.api.io.FileReference;
 import edu.uci.ics.hyracks.api.io.IFileHandle;
 import edu.uci.ics.hyracks.api.io.IIOManager;
@@ -22,7 +35,7 @@
 import edu.uci.ics.hyracks.test.support.TestStorageManagerComponentHolder;
 import edu.uci.ics.hyracks.test.support.TestUtils;
 
-public class BufferCacheRegressionTests {
+public class BufferCacheRegressionTest {
     protected static final String tmpDir = System.getProperty("java.io.tmpdir");
     protected static final String sep = System.getProperty("file.separator");
 
@@ -121,51 +134,4 @@
         }
         bufferCache.close();
     }
-
-    // Tests the behavior of the BufferCache when more than all pages are
-    // pinned. We expect an exception.
-    @Test
-    public void testPinningAllPages() throws HyracksDataException {
-        int numPages = 10;
-        TestStorageManagerComponentHolder.init(PAGE_SIZE, numPages, 1);
-
-        IBufferCache bufferCache = TestStorageManagerComponentHolder.getBufferCache(ctx);
-        IFileMapProvider fmp = TestStorageManagerComponentHolder.getFileMapProvider(ctx);
-
-        FileReference firstFileRef = new FileReference(new File(fileName));
-        bufferCache.createFile(firstFileRef);
-        int fileId = fmp.lookupFileId(firstFileRef);
-        bufferCache.openFile(fileId);
-
-        // Pin all pages.
-        ICachedPage[] pages = new ICachedPage[numPages];
-        for (int i = 0; i < numPages; ++i) {
-            pages[i] = bufferCache.pin(BufferedFileHandle.getDiskPageId(fileId, i), true);
-        }
-
-        // Try to pin another page. We expect a HyracksDataException.
-        ICachedPage errorPage = null;
-        try {
-            errorPage = bufferCache.pin(BufferedFileHandle.getDiskPageId(fileId, numPages), true);
-        } catch (HyracksDataException e) {
-            // This is the expected outcome.
-            // The BufferCache should still be able to function properly.
-            // Try unpinning all pages.
-            for (int i = 0; i < numPages; ++i) {
-                bufferCache.unpin(pages[i]);
-            }
-            // Now try pinning the page that failed above again.
-            errorPage = bufferCache.pin(BufferedFileHandle.getDiskPageId(fileId, numPages), true);
-            // Unpin it.
-            bufferCache.unpin(errorPage);
-            // Cleanup.
-            bufferCache.closeFile(fileId);
-            bufferCache.close();
-            return;
-        } catch (Exception e) {
-            fail("Expected a HyracksDataException when pinning more pages than available but got another exception: "
-                    + e.getMessage());
-        }
-        fail("Expected a HyracksDataException when pinning more pages than available.");
-    }
 }
diff --git a/hyracks/hyracks-tests/hyracks-storage-common-test/src/test/java/edu/uci/ics/hyracks/storage/common/BufferCacheTest.java b/hyracks/hyracks-tests/hyracks-storage-common-test/src/test/java/edu/uci/ics/hyracks/storage/common/BufferCacheTest.java
index 80502eb..7e71aea 100644
--- a/hyracks/hyracks-tests/hyracks-storage-common-test/src/test/java/edu/uci/ics/hyracks/storage/common/BufferCacheTest.java
+++ b/hyracks/hyracks-tests/hyracks-storage-common-test/src/test/java/edu/uci/ics/hyracks/storage/common/BufferCacheTest.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.hyracks.storage.common;
 
 import java.io.File;
diff --git a/hyracks/hyracks-tests/pom.xml b/hyracks/hyracks-tests/pom.xml
index d61209e..2990e53 100644
--- a/hyracks/hyracks-tests/pom.xml
+++ b/hyracks/hyracks-tests/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-tests</artifactId>
@@ -7,7 +21,7 @@
   <parent>
     <groupId>edu.uci.ics.hyracks</groupId>
     <artifactId>hyracks</artifactId>
-    <version>0.2.6-SNAPSHOT</version>
+    <version>0.2.7-SNAPSHOT</version>
   </parent>
 
   <modules>
diff --git a/hyracks/hyracks-yarn/hyracks-yarn-am/pom.xml b/hyracks/hyracks-yarn/hyracks-yarn-am/pom.xml
index d33ddc5..1faf226 100644
--- a/hyracks/hyracks-yarn/hyracks-yarn-am/pom.xml
+++ b/hyracks/hyracks-yarn/hyracks-yarn-am/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-yarn-am</artifactId>
diff --git a/hyracks/hyracks-yarn/hyracks-yarn-am/src/main/assembly/binary-assembly.xml b/hyracks/hyracks-yarn/hyracks-yarn-am/src/main/assembly/binary-assembly.xml
index 0500499..e722e72 100644
--- a/hyracks/hyracks-yarn/hyracks-yarn-am/src/main/assembly/binary-assembly.xml
+++ b/hyracks/hyracks-yarn/hyracks-yarn-am/src/main/assembly/binary-assembly.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <assembly>
   <id>binary-assembly</id>
   <formats>
diff --git a/hyracks/hyracks-yarn/hyracks-yarn-am/src/main/java/edu/uci/ics/hyracks/yarn/am/HyracksYarnApplicationMaster.java b/hyracks/hyracks-yarn/hyracks-yarn-am/src/main/java/edu/uci/ics/hyracks/yarn/am/HyracksYarnApplicationMaster.java
index e56285a..4065d45 100644
--- a/hyracks/hyracks-yarn/hyracks-yarn-am/src/main/java/edu/uci/ics/hyracks/yarn/am/HyracksYarnApplicationMaster.java
+++ b/hyracks/hyracks-yarn/hyracks-yarn-am/src/main/java/edu/uci/ics/hyracks/yarn/am/HyracksYarnApplicationMaster.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-yarn/hyracks-yarn-am/src/main/java/edu/uci/ics/hyracks/yarn/am/manifest/AbstractProcess.java b/hyracks/hyracks-yarn/hyracks-yarn-am/src/main/java/edu/uci/ics/hyracks/yarn/am/manifest/AbstractProcess.java
index be6e263..e553964 100644
--- a/hyracks/hyracks-yarn/hyracks-yarn-am/src/main/java/edu/uci/ics/hyracks/yarn/am/manifest/AbstractProcess.java
+++ b/hyracks/hyracks-yarn/hyracks-yarn-am/src/main/java/edu/uci/ics/hyracks/yarn/am/manifest/AbstractProcess.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-yarn/hyracks-yarn-am/src/main/java/edu/uci/ics/hyracks/yarn/am/manifest/ClusterController.java b/hyracks/hyracks-yarn/hyracks-yarn-am/src/main/java/edu/uci/ics/hyracks/yarn/am/manifest/ClusterController.java
index b230ada..59ce906 100644
--- a/hyracks/hyracks-yarn/hyracks-yarn-am/src/main/java/edu/uci/ics/hyracks/yarn/am/manifest/ClusterController.java
+++ b/hyracks/hyracks-yarn/hyracks-yarn-am/src/main/java/edu/uci/ics/hyracks/yarn/am/manifest/ClusterController.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-yarn/hyracks-yarn-am/src/main/java/edu/uci/ics/hyracks/yarn/am/manifest/ContainerSpecification.java b/hyracks/hyracks-yarn/hyracks-yarn-am/src/main/java/edu/uci/ics/hyracks/yarn/am/manifest/ContainerSpecification.java
index 07f12c8..983e2fa 100644
--- a/hyracks/hyracks-yarn/hyracks-yarn-am/src/main/java/edu/uci/ics/hyracks/yarn/am/manifest/ContainerSpecification.java
+++ b/hyracks/hyracks-yarn/hyracks-yarn-am/src/main/java/edu/uci/ics/hyracks/yarn/am/manifest/ContainerSpecification.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-yarn/hyracks-yarn-am/src/main/java/edu/uci/ics/hyracks/yarn/am/manifest/HyracksCluster.java b/hyracks/hyracks-yarn/hyracks-yarn-am/src/main/java/edu/uci/ics/hyracks/yarn/am/manifest/HyracksCluster.java
index 4a66ed6..bacba42 100644
--- a/hyracks/hyracks-yarn/hyracks-yarn-am/src/main/java/edu/uci/ics/hyracks/yarn/am/manifest/HyracksCluster.java
+++ b/hyracks/hyracks-yarn/hyracks-yarn-am/src/main/java/edu/uci/ics/hyracks/yarn/am/manifest/HyracksCluster.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-yarn/hyracks-yarn-am/src/main/java/edu/uci/ics/hyracks/yarn/am/manifest/ManifestParser.java b/hyracks/hyracks-yarn/hyracks-yarn-am/src/main/java/edu/uci/ics/hyracks/yarn/am/manifest/ManifestParser.java
index bc5ebae..fc3fc1a 100644
--- a/hyracks/hyracks-yarn/hyracks-yarn-am/src/main/java/edu/uci/ics/hyracks/yarn/am/manifest/ManifestParser.java
+++ b/hyracks/hyracks-yarn/hyracks-yarn-am/src/main/java/edu/uci/ics/hyracks/yarn/am/manifest/ManifestParser.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-yarn/hyracks-yarn-am/src/main/java/edu/uci/ics/hyracks/yarn/am/manifest/NodeController.java b/hyracks/hyracks-yarn/hyracks-yarn-am/src/main/java/edu/uci/ics/hyracks/yarn/am/manifest/NodeController.java
index f46eb7f..4863375 100644
--- a/hyracks/hyracks-yarn/hyracks-yarn-am/src/main/java/edu/uci/ics/hyracks/yarn/am/manifest/NodeController.java
+++ b/hyracks/hyracks-yarn/hyracks-yarn-am/src/main/java/edu/uci/ics/hyracks/yarn/am/manifest/NodeController.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-yarn/hyracks-yarn-client/pom.xml b/hyracks/hyracks-yarn/hyracks-yarn-client/pom.xml
index 649aa6c..2f035a0 100644
--- a/hyracks/hyracks-yarn/hyracks-yarn-client/pom.xml
+++ b/hyracks/hyracks-yarn/hyracks-yarn-client/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-yarn-client</artifactId>
diff --git a/hyracks/hyracks-yarn/hyracks-yarn-client/src/main/assembly/binary-assembly.xml b/hyracks/hyracks-yarn/hyracks-yarn-client/src/main/assembly/binary-assembly.xml
index b4fa339..38e9520 100644
--- a/hyracks/hyracks-yarn/hyracks-yarn-client/src/main/assembly/binary-assembly.xml
+++ b/hyracks/hyracks-yarn/hyracks-yarn-client/src/main/assembly/binary-assembly.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <assembly>
   <id>binary-assembly</id>
   <formats>
diff --git a/hyracks/hyracks-yarn/hyracks-yarn-client/src/main/java/edu/uci/ics/hyracks/yarn/client/KillHyracksApplication.java b/hyracks/hyracks-yarn/hyracks-yarn-client/src/main/java/edu/uci/ics/hyracks/yarn/client/KillHyracksApplication.java
index 4789160..65be86d 100644
--- a/hyracks/hyracks-yarn/hyracks-yarn-client/src/main/java/edu/uci/ics/hyracks/yarn/client/KillHyracksApplication.java
+++ b/hyracks/hyracks-yarn/hyracks-yarn-client/src/main/java/edu/uci/ics/hyracks/yarn/client/KillHyracksApplication.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-yarn/hyracks-yarn-client/src/main/java/edu/uci/ics/hyracks/yarn/client/LaunchHyracksApplication.java b/hyracks/hyracks-yarn/hyracks-yarn-client/src/main/java/edu/uci/ics/hyracks/yarn/client/LaunchHyracksApplication.java
index 0eb930e..266aa8a 100644
--- a/hyracks/hyracks-yarn/hyracks-yarn-client/src/main/java/edu/uci/ics/hyracks/yarn/client/LaunchHyracksApplication.java
+++ b/hyracks/hyracks-yarn/hyracks-yarn-client/src/main/java/edu/uci/ics/hyracks/yarn/client/LaunchHyracksApplication.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-yarn/hyracks-yarn-common/pom.xml b/hyracks/hyracks-yarn/hyracks-yarn-common/pom.xml
index fe210fd..6454926 100644
--- a/hyracks/hyracks-yarn/hyracks-yarn-common/pom.xml
+++ b/hyracks/hyracks-yarn/hyracks-yarn-common/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-yarn-common</artifactId>
diff --git a/hyracks/hyracks-yarn/hyracks-yarn-common/src/main/java/edu/uci/ics/hyracks/yarn/common/protocols/amrm/AMRMConnection.java b/hyracks/hyracks-yarn/hyracks-yarn-common/src/main/java/edu/uci/ics/hyracks/yarn/common/protocols/amrm/AMRMConnection.java
index 7181bc3..b607e7e 100644
--- a/hyracks/hyracks-yarn/hyracks-yarn-common/src/main/java/edu/uci/ics/hyracks/yarn/common/protocols/amrm/AMRMConnection.java
+++ b/hyracks/hyracks-yarn/hyracks-yarn-common/src/main/java/edu/uci/ics/hyracks/yarn/common/protocols/amrm/AMRMConnection.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-yarn/hyracks-yarn-common/src/main/java/edu/uci/ics/hyracks/yarn/common/protocols/clientrm/YarnApplication.java b/hyracks/hyracks-yarn/hyracks-yarn-common/src/main/java/edu/uci/ics/hyracks/yarn/common/protocols/clientrm/YarnApplication.java
index ca099aa..b3d8496 100644
--- a/hyracks/hyracks-yarn/hyracks-yarn-common/src/main/java/edu/uci/ics/hyracks/yarn/common/protocols/clientrm/YarnApplication.java
+++ b/hyracks/hyracks-yarn/hyracks-yarn-common/src/main/java/edu/uci/ics/hyracks/yarn/common/protocols/clientrm/YarnApplication.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-yarn/hyracks-yarn-common/src/main/java/edu/uci/ics/hyracks/yarn/common/protocols/clientrm/YarnClientRMConnection.java b/hyracks/hyracks-yarn/hyracks-yarn-common/src/main/java/edu/uci/ics/hyracks/yarn/common/protocols/clientrm/YarnClientRMConnection.java
index bb42fab..b42ed1b 100644
--- a/hyracks/hyracks-yarn/hyracks-yarn-common/src/main/java/edu/uci/ics/hyracks/yarn/common/protocols/clientrm/YarnClientRMConnection.java
+++ b/hyracks/hyracks-yarn/hyracks-yarn-common/src/main/java/edu/uci/ics/hyracks/yarn/common/protocols/clientrm/YarnClientRMConnection.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-yarn/hyracks-yarn-common/src/main/java/edu/uci/ics/hyracks/yarn/common/resources/LocalResourceHelper.java b/hyracks/hyracks-yarn/hyracks-yarn-common/src/main/java/edu/uci/ics/hyracks/yarn/common/resources/LocalResourceHelper.java
index b30c4a1..1d46e96 100644
--- a/hyracks/hyracks-yarn/hyracks-yarn-common/src/main/java/edu/uci/ics/hyracks/yarn/common/resources/LocalResourceHelper.java
+++ b/hyracks/hyracks-yarn/hyracks-yarn-common/src/main/java/edu/uci/ics/hyracks/yarn/common/resources/LocalResourceHelper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-yarn/hyracks-yarn-common/src/main/java/edu/uci/ics/hyracks/yarn/common/resources/ResourceHelper.java b/hyracks/hyracks-yarn/hyracks-yarn-common/src/main/java/edu/uci/ics/hyracks/yarn/common/resources/ResourceHelper.java
index 20267b7..422e728 100644
--- a/hyracks/hyracks-yarn/hyracks-yarn-common/src/main/java/edu/uci/ics/hyracks/yarn/common/resources/ResourceHelper.java
+++ b/hyracks/hyracks-yarn/hyracks-yarn-common/src/main/java/edu/uci/ics/hyracks/yarn/common/resources/ResourceHelper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/hyracks/hyracks-yarn/pom.xml b/hyracks/hyracks-yarn/pom.xml
index c6e24b5..bb20387 100644
--- a/hyracks/hyracks-yarn/pom.xml
+++ b/hyracks/hyracks-yarn/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>hyracks-yarn</artifactId>
diff --git a/hyracks/pom.xml b/hyracks/pom.xml
index 4eccb73..6282fdd 100644
--- a/hyracks/pom.xml
+++ b/hyracks/pom.xml
@@ -1,9 +1,23 @@
 <?xml version="1.0" encoding="UTF-8"?>
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <groupId>edu.uci.ics.hyracks</groupId>
   <artifactId>hyracks</artifactId>
-  <version>0.2.6-SNAPSHOT</version>
+  <version>0.2.7-SNAPSHOT</version>
   <packaging>pom</packaging>
   <name>hyracks</name>
 
diff --git a/pom.xml b/pom.xml
index 3a7d87b..3428836 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1,9 +1,23 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <groupId>edu.uci.ics.hyracks</groupId>
   <artifactId>fullstack</artifactId>
-  <version>0.2.6-SNAPSHOT</version>
+  <version>0.2.7-SNAPSHOT</version>
   <packaging>pom</packaging>
   <name>hyracks-ecosystem-full-stack</name>
 
diff --git a/pregelix/HyracksCodeFormatProfile.xml b/pregelix/HyracksCodeFormatProfile.xml
index 2cde66d..2ebb633 100644
--- a/pregelix/HyracksCodeFormatProfile.xml
+++ b/pregelix/HyracksCodeFormatProfile.xml
@@ -1,4 +1,18 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <profiles version="11">
 <profile kind="CodeFormatterProfile" name="HyracksCodeFormatProfile" version="11">
 <setting id="org.eclipse.jdt.core.formatter.comment.insert_new_line_before_root_tags" value="insert"/>
diff --git a/pregelix/pom.xml b/pregelix/pom.xml
index bb2b336..c0c3822 100644
--- a/pregelix/pom.xml
+++ b/pregelix/pom.xml
@@ -1,9 +1,23 @@
 <?xml version="1.0" encoding="UTF-8"?>
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <groupId>edu.uci.ics.hyracks</groupId>
   <artifactId>pregelix</artifactId>
-  <version>0.2.6-SNAPSHOT</version>
+  <version>0.2.7-SNAPSHOT</version>
   <packaging>pom</packaging>
   <name>pregelix</name>
 
diff --git a/pregelix/pregelix-api/pom.xml b/pregelix/pregelix-api/pom.xml
index c997ec8..305b50c 100644
--- a/pregelix/pregelix-api/pom.xml
+++ b/pregelix/pregelix-api/pom.xml
@@ -1,4 +1,18 @@
 <?xml version="1.0"?>
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>pregelix-api</artifactId>
@@ -7,7 +21,7 @@
 	<parent>
 		<groupId>edu.uci.ics.hyracks</groupId>
 		<artifactId>pregelix</artifactId>
-		<version>0.2.6-SNAPSHOT</version>
+		<version>0.2.7-SNAPSHOT</version>
 	</parent>
 
 	<properties>
@@ -68,7 +82,7 @@
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-dataflow-common</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
@@ -81,7 +95,7 @@
 		<dependency>
                         <groupId>edu.uci.ics.hyracks</groupId>
                         <artifactId>hyracks-hdfs-core</artifactId>
-                        <version>0.2.6-SNAPSHOT</version>
+                        <version>0.2.7-SNAPSHOT</version>
                         <type>jar</type>
                         <scope>compile</scope>
                 </dependency>
diff --git a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/graph/Edge.java b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/graph/Edge.java
index e5f42fe..e662bd8 100644
--- a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/graph/Edge.java
+++ b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/graph/Edge.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/graph/GlobalAggregator.java b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/graph/GlobalAggregator.java
index cb27249..08c7151 100644
--- a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/graph/GlobalAggregator.java
+++ b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/graph/GlobalAggregator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.pregelix.api.graph;
 
 import java.io.IOException;
diff --git a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/graph/MessageCombiner.java b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/graph/MessageCombiner.java
index e4f8ef9..f5daf99 100644
--- a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/graph/MessageCombiner.java
+++ b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/graph/MessageCombiner.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/graph/MsgList.java b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/graph/MsgList.java
index 8d3d4c6..104f396 100644
--- a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/graph/MsgList.java
+++ b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/graph/MsgList.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/graph/Vertex.java b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/graph/Vertex.java
index e51d4bc..4175078 100644
--- a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/graph/Vertex.java
+++ b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/graph/Vertex.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -420,7 +420,7 @@
     private M allocateMessage() {
         M message;
         if (usedMessage < msgPool.size()) {
-            message = msgPool.get(usedEdge);
+            message = msgPool.get(usedMessage);
             usedMessage++;
         } else {
             message = BspUtils.<M> createMessageValue(getContext().getConfiguration());
diff --git a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/graph/VertexDelegate.java b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/graph/VertexDelegate.java
index 4b153c1..a05d168 100644
--- a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/graph/VertexDelegate.java
+++ b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/graph/VertexDelegate.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/graph/VertexPartitioner.java b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/graph/VertexPartitioner.java
new file mode 100644
index 0000000..f51ad88
--- /dev/null
+++ b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/graph/VertexPartitioner.java
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.pregelix.api.graph;
+
+import org.apache.hadoop.io.WritableComparable;
+
+/**
+ * Users can extend this class to implement the desired vertex partitioning behavior.
+ * 
+ * @author yingyib
+ */
+@SuppressWarnings("rawtypes")
+public abstract class VertexPartitioner<I extends WritableComparable> {
+
+    /**
+     * @param vertexId
+     *            The input vertex id.
+     * @param nPartitions
+     *            The total number of partitions.
+     * @return The partition id.
+     */
+    public abstract int getPartitionId(I vertexId, int nPartitions);
+
+}
diff --git a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/BasicGenInputSplit.java b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/BasicGenInputSplit.java
index ea33691..f63b3a5 100644
--- a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/BasicGenInputSplit.java
+++ b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/BasicGenInputSplit.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/VertexInputFormat.java b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/VertexInputFormat.java
index 98076fd..c841b1a 100644
--- a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/VertexInputFormat.java
+++ b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/VertexInputFormat.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/VertexOutputFormat.java b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/VertexOutputFormat.java
index 6a761a6..6fb775a 100644
--- a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/VertexOutputFormat.java
+++ b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/VertexOutputFormat.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/VertexReader.java b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/VertexReader.java
index 3e899b8..e6c62ba 100644
--- a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/VertexReader.java
+++ b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/VertexReader.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/VertexWriter.java b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/VertexWriter.java
index fcad020..9336170 100644
--- a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/VertexWriter.java
+++ b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/VertexWriter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/generated/GeneratedVertexInputFormat.java b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/generated/GeneratedVertexInputFormat.java
index 7e7825a..985bcff 100644
--- a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/generated/GeneratedVertexInputFormat.java
+++ b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/generated/GeneratedVertexInputFormat.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/generated/GeneratedVertexReader.java b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/generated/GeneratedVertexReader.java
index 370583b..92c8728 100644
--- a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/generated/GeneratedVertexReader.java
+++ b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/generated/GeneratedVertexReader.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/text/TextVertexInputFormat.java b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/text/TextVertexInputFormat.java
index 9fcb1c6..2254ae4 100644
--- a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/text/TextVertexInputFormat.java
+++ b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/text/TextVertexInputFormat.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/text/TextVertexOutputFormat.java b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/text/TextVertexOutputFormat.java
index 355b9f8..c9d0ffa 100644
--- a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/text/TextVertexOutputFormat.java
+++ b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/io/text/TextVertexOutputFormat.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/job/PregelixJob.java b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/job/PregelixJob.java
index dde1a5e..4cddaf0 100644
--- a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/job/PregelixJob.java
+++ b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/job/PregelixJob.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -24,6 +24,7 @@
 import edu.uci.ics.pregelix.api.graph.MessageCombiner;
 import edu.uci.ics.pregelix.api.graph.NormalizedKeyComputer;
 import edu.uci.ics.pregelix.api.graph.Vertex;
+import edu.uci.ics.pregelix.api.graph.VertexPartitioner;
 import edu.uci.ics.pregelix.api.io.VertexInputFormat;
 import edu.uci.ics.pregelix.api.io.VertexOutputFormat;
 
@@ -59,6 +60,8 @@
     public static final String FINAL_AGGREGATE_VALUE_CLASS = "pregelix.finalAggregateValueClass";
     /** The normalized key computer class */
     public static final String NMK_COMPUTER_CLASS = "pregelix.nmkComputerClass";
+    /** The partitioner class */
+    public static final String PARTITIONER_CLASS = "pregelix.partitionerClass";
     /** num of vertices */
     public static final String NUM_VERTICE = "pregelix.numVertices";
     /** num of edges */
@@ -69,6 +72,8 @@
     public static final String JOB_ID = "pregelix.jobid";
     /** frame size */
     public static final String FRAME_SIZE = "pregelix.framesize";
+    /** update intensive */
+    public static final String UPDATE_INTENSIVE = "pregelix.updateIntensive";
 
     /**
      * Constructor that will instantiate the configuration
@@ -178,4 +183,22 @@
     final public void setNoramlizedKeyComputerClass(Class<?> nkcClass) {
         getConfiguration().setClass(NMK_COMPUTER_CLASS, nkcClass, NormalizedKeyComputer.class);
     }
+
+    /**
+     * Set the vertex partitioner class
+     * 
+     * @param partitionerClass
+     */
+    final public void setVertexPartitionerClass(Class<?> partitionerClass) {
+        getConfiguration().setClass(PARTITIONER_CLASS, partitionerClass, VertexPartitioner.class);
+    }
+
+    /**
+     * Indicate if the job needs to do a lot of graph mutations or variable size updates
+     * 
+     * @param updateHeavyFlag
+     */
+    final public void setMutationOrVariableSizedUpdateHeavy(boolean variableSizedUpdateHeavyFlag) {
+        getConfiguration().setBoolean(UPDATE_INTENSIVE, variableSizedUpdateHeavyFlag);
+    }
 }
diff --git a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/ArrayListWritable.java b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/ArrayListWritable.java
index d2ba28d..7a9e5d5 100644
--- a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/ArrayListWritable.java
+++ b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/ArrayListWritable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/BspUtils.java b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/BspUtils.java
index 6dfb416..03c37dc 100644
--- a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/BspUtils.java
+++ b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/BspUtils.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -25,6 +25,7 @@
 import edu.uci.ics.pregelix.api.graph.MsgList;
 import edu.uci.ics.pregelix.api.graph.NormalizedKeyComputer;
 import edu.uci.ics.pregelix.api.graph.Vertex;
+import edu.uci.ics.pregelix.api.graph.VertexPartitioner;
 import edu.uci.ics.pregelix.api.io.VertexInputFormat;
 import edu.uci.ics.pregelix.api.io.VertexOutputFormat;
 import edu.uci.ics.pregelix.api.job.PregelixJob;
@@ -156,7 +157,7 @@
     }
 
     /**
-     * Create a global aggregator class
+     * Create a global aggregator object
      * 
      * @param conf
      *            Configuration to check
@@ -391,9 +392,9 @@
         try {
             return aggregateValueClass.newInstance();
         } catch (InstantiationException e) {
-            throw new IllegalArgumentException("createMessageValue: Failed to instantiate", e);
+            throw new IllegalArgumentException("createPartialAggregateValue: Failed to instantiate", e);
         } catch (IllegalAccessException e) {
-            throw new IllegalArgumentException("createMessageValue: Illegally accessed", e);
+            throw new IllegalArgumentException("createPartialAggregateValue: Illegally accessed", e);
         }
     }
 
@@ -415,9 +416,9 @@
             }
             return instance;
         } catch (InstantiationException e) {
-            throw new IllegalArgumentException("createMessageValue: Failed to instantiate", e);
+            throw new IllegalArgumentException("createPartialCombineValue: Failed to instantiate", e);
         } catch (IllegalAccessException e) {
-            throw new IllegalArgumentException("createMessageValue: Illegally accessed", e);
+            throw new IllegalArgumentException("createPartialCombineValue: Illegally accessed", e);
         }
     }
 
@@ -433,13 +434,46 @@
         try {
             return aggregateValueClass.newInstance();
         } catch (InstantiationException e) {
-            throw new IllegalArgumentException("createMessageValue: Failed to instantiate", e);
+            throw new IllegalArgumentException("createAggregateValue: Failed to instantiate", e);
         } catch (IllegalAccessException e) {
-            throw new IllegalArgumentException("createMessageValue: Illegally accessed", e);
+            throw new IllegalArgumentException("createAggregateValue: Illegally accessed", e);
         }
     }
 
     /**
+     * Create a user aggregate value
+     * 
+     * @param conf
+     *            Configuration to check
+     * @return Instantiated user aggregate value
+     */
+    @SuppressWarnings("rawtypes")
+    public static VertexPartitioner createVertexPartitioner(Configuration conf) {
+        Class<? extends VertexPartitioner> vertexPartitionerClass = getVertexPartitionerClass(conf);
+        try {
+            return vertexPartitionerClass.newInstance();
+        } catch (InstantiationException e) {
+            throw new IllegalArgumentException("createVertexPartitioner: Failed to instantiate", e);
+        } catch (IllegalAccessException e) {
+            throw new IllegalArgumentException("createVertexPartitioner: Illegally accessed", e);
+        }
+    }
+
+    /**
+     * Get the user's subclassed vertex partitioner class.
+     * 
+     * @param conf
+     *            Configuration to check
+     * @return The user defined vertex partitioner class
+     */
+    @SuppressWarnings({ "unchecked", "rawtypes" })
+    public static <V extends VertexPartitioner> Class<V> getVertexPartitionerClass(Configuration conf) {
+        if (conf == null)
+            conf = defaultConf;
+        return (Class<V>) conf.getClass(PregelixJob.PARTITIONER_CLASS, null, VertexPartitioner.class);
+    }
+
+    /**
      * Get the job configuration parameter whether the vertex states will increase dynamically
      * 
      * @param conf
@@ -460,4 +494,14 @@
     public static int getFrameSize(Configuration conf) {
         return conf.getInt(PregelixJob.FRAME_SIZE, -1);
     }
+
+    /**
+     * Should the job use LSM or B-tree to store vertices
+     * 
+     * @param conf
+     * @return
+     */
+    public static boolean useLSM(Configuration conf) {
+        return conf.getBoolean(PregelixJob.UPDATE_INTENSIVE, false);
+    }
 }
diff --git a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/DefaultMessageCombiner.java b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/DefaultMessageCombiner.java
index 1468431..d2d90a2 100644
--- a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/DefaultMessageCombiner.java
+++ b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/DefaultMessageCombiner.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.pregelix.api.util;
 
 import org.apache.hadoop.io.Writable;
diff --git a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/DefaultVertexPartitioner.java b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/DefaultVertexPartitioner.java
new file mode 100644
index 0000000..263ec65
--- /dev/null
+++ b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/DefaultVertexPartitioner.java
@@ -0,0 +1,35 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.pregelix.api.util;
+
+import org.apache.hadoop.io.WritableComparable;
+
+import edu.uci.ics.pregelix.api.graph.VertexPartitioner;
+
+/**
+ * The deafult vertex partitioner which use the hashcode of the vertex id to determine the partition
+ * of the vertex.
+ * 
+ * @author yingyib
+ */
+@SuppressWarnings("rawtypes")
+public class DefaultVertexPartitioner<I extends WritableComparable> extends VertexPartitioner<I> {
+
+    @Override
+    public int getPartitionId(I vertexId, int nPartitions) {
+        return vertexId.hashCode() % nPartitions;
+    }
+
+}
diff --git a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/FrameTupleUtils.java b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/FrameTupleUtils.java
index 402249e..24105ae 100644
--- a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/FrameTupleUtils.java
+++ b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/FrameTupleUtils.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/GlobalCountAggregator.java b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/GlobalCountAggregator.java
index 1c1fa92..ffc6526 100644
--- a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/GlobalCountAggregator.java
+++ b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/GlobalCountAggregator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.pregelix.api.util;
 
 import org.apache.hadoop.io.LongWritable;
diff --git a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/ReflectionUtils.java b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/ReflectionUtils.java
index 1366df1..3a85650 100644
--- a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/ReflectionUtils.java
+++ b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/ReflectionUtils.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/ResetableByteArrayInputStream.java b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/ResetableByteArrayInputStream.java
index 5702642..7d5f627 100755
--- a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/ResetableByteArrayInputStream.java
+++ b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/ResetableByteArrayInputStream.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/ResetableByteArrayOutputStream.java b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/ResetableByteArrayOutputStream.java
index 307a3ae..4b417be 100755
--- a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/ResetableByteArrayOutputStream.java
+++ b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/ResetableByteArrayOutputStream.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/SerDeUtils.java b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/SerDeUtils.java
index 32c21ac..25b07ff 100644
--- a/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/SerDeUtils.java
+++ b/pregelix/pregelix-api/src/main/java/edu/uci/ics/pregelix/api/util/SerDeUtils.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-core/pom.xml b/pregelix/pregelix-core/pom.xml
index d229dc7..2a3efcf 100644
--- a/pregelix/pregelix-core/pom.xml
+++ b/pregelix/pregelix-core/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>pregelix-core</artifactId>
@@ -7,7 +21,7 @@
 	<parent>
 		<groupId>edu.uci.ics.hyracks</groupId>
 		<artifactId>pregelix</artifactId>
-		<version>0.2.6-SNAPSHOT</version>
+		<version>0.2.7-SNAPSHOT</version>
 	</parent>
 
 
@@ -195,84 +209,84 @@
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>pregelix-api</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>pregelix-dataflow-std</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>pregelix-dataflow</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-dataflow-std</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>pregelix-runtime</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-api</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-dataflow-common</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-data-std</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-storage-am-common</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-storage-am-btree</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-control-cc</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-control-nc</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
@@ -286,7 +300,7 @@
 		<dependency>
 			<groupId>edu.uci.ics.hyracks.examples</groupId>
 			<artifactId>hyracks-integration-tests</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<scope>test</scope>
 		</dependency>
 		<dependency>
@@ -306,7 +320,7 @@
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-ipc</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
diff --git a/pregelix/pregelix-core/src/main/assembly/binary-assembly.xml b/pregelix/pregelix-core/src/main/assembly/binary-assembly.xml
index 0500499..e722e72 100755
--- a/pregelix/pregelix-core/src/main/assembly/binary-assembly.xml
+++ b/pregelix/pregelix-core/src/main/assembly/binary-assembly.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <assembly>
   <id>binary-assembly</id>
   <formats>
diff --git a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/base/IDriver.java b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/base/IDriver.java
index ccdd965..bc6c0cf 100644
--- a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/base/IDriver.java
+++ b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/base/IDriver.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/base/IJobGen.java b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/base/IJobGen.java
index 065ed5f..2d58902 100644
--- a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/base/IJobGen.java
+++ b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/base/IJobGen.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/data/TypeTraits.java b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/data/TypeTraits.java
index 7659bf9..6daa010 100644
--- a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/data/TypeTraits.java
+++ b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/data/TypeTraits.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/driver/Driver.java b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/driver/Driver.java
index 1f071bf..2d4064b 100644
--- a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/driver/Driver.java
+++ b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/driver/Driver.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/hadoop/config/ConfigurationFactory.java b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/hadoop/config/ConfigurationFactory.java
index d225eb4..1600ab5 100644
--- a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/hadoop/config/ConfigurationFactory.java
+++ b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/hadoop/config/ConfigurationFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -45,4 +45,15 @@
             throw new HyracksDataException(e);
         }
     }
+    
+    @Override
+    public Configuration createConfiguration() throws HyracksDataException{
+        try {
+            Configuration conf = new Configuration();
+            SerDeUtils.deserialize(conf, data);
+            return conf;
+        } catch (Exception e) {
+            throw new HyracksDataException(e);
+        }
+    }
 }
diff --git a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/hadoop/data/Message.java b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/hadoop/data/Message.java
index a812a6b..d0bde02 100644
--- a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/hadoop/data/Message.java
+++ b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/hadoop/data/Message.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/hadoop/data/MessageList.java b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/hadoop/data/MessageList.java
index bff3783..eda340c 100644
--- a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/hadoop/data/MessageList.java
+++ b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/hadoop/data/MessageList.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGen.java b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGen.java
index c913eff..478ac07 100644
--- a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGen.java
+++ b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGen.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -53,15 +53,22 @@
 import edu.uci.ics.hyracks.storage.am.btree.dataflow.BTreeDataflowHelperFactory;
 import edu.uci.ics.hyracks.storage.am.btree.dataflow.BTreeSearchOperatorDescriptor;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndexLifecycleManagerProvider;
+import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndexDataflowHelperFactory;
 import edu.uci.ics.hyracks.storage.am.common.dataflow.IndexDropOperatorDescriptor;
 import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexBulkLoadOperatorDescriptor;
 import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexCreateOperatorDescriptor;
 import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallbackFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.btree.dataflow.LSMBTreeDataflowHelperFactory;
+import edu.uci.ics.hyracks.storage.am.lsm.common.impls.ConstantMergePolicyProvider;
+import edu.uci.ics.hyracks.storage.am.lsm.common.impls.NoOpIOOperationCallback;
+import edu.uci.ics.hyracks.storage.am.lsm.common.impls.NoOpOperationTrackerProvider;
+import edu.uci.ics.hyracks.storage.am.lsm.common.impls.SynchronousSchedulerProvider;
 import edu.uci.ics.hyracks.storage.common.IStorageManagerInterface;
 import edu.uci.ics.hyracks.storage.common.file.TransientLocalResourceFactoryProvider;
 import edu.uci.ics.pregelix.api.graph.GlobalAggregator;
 import edu.uci.ics.pregelix.api.graph.MessageCombiner;
 import edu.uci.ics.pregelix.api.graph.Vertex;
+import edu.uci.ics.pregelix.api.graph.VertexPartitioner;
 import edu.uci.ics.pregelix.api.io.VertexInputFormat;
 import edu.uci.ics.pregelix.api.job.PregelixJob;
 import edu.uci.ics.pregelix.api.util.BspUtils;
@@ -80,8 +87,10 @@
 import edu.uci.ics.pregelix.dataflow.std.base.IRuntimeHookFactory;
 import edu.uci.ics.pregelix.runtime.bootstrap.IndexLifeCycleManagerProvider;
 import edu.uci.ics.pregelix.runtime.bootstrap.StorageManagerInterface;
+import edu.uci.ics.pregelix.runtime.bootstrap.VirtualBufferCacheProvider;
 import edu.uci.ics.pregelix.runtime.touchpoint.RuntimeHookFactory;
 import edu.uci.ics.pregelix.runtime.touchpoint.VertexIdPartitionComputerFactory;
+import edu.uci.ics.pregelix.runtime.touchpoint.VertexPartitionComputerFactory;
 import edu.uci.ics.pregelix.runtime.touchpoint.WritableSerializerDeserializerFactory;
 
 public abstract class JobGen implements IJobGen {
@@ -166,10 +175,12 @@
         comparatorFactories[0] = new WritableComparingBinaryComparatorFactory(WritableComparator.get(vertexIdClass)
                 .getClass());
 
+        int[] keyFields = new int[1];
+        keyFields[0] = 0;
         IFileSplitProvider fileSplitProvider = ClusterConfig.getFileSplitProvider(jobId, PRIMARY_INDEX);
         TreeIndexCreateOperatorDescriptor btreeCreate = new TreeIndexCreateOperatorDescriptor(spec,
-                storageManagerInterface, lcManagerProvider, fileSplitProvider, typeTraits, comparatorFactories, null,
-                new BTreeDataflowHelperFactory(), new TransientLocalResourceFactoryProvider(),
+                storageManagerInterface, lcManagerProvider, fileSplitProvider, typeTraits, comparatorFactories,
+                keyFields, getIndexDataflowHelperFactory(), new TransientLocalResourceFactoryProvider(),
                 NoOpOperationCallbackFactory.INSTANCE);
         ClusterConfig.setLocationConstraint(spec, btreeCreate);
         spec.setFrameSize(frameSize);
@@ -229,16 +240,15 @@
         typeTraits[0] = new TypeTraits(false);
         typeTraits[1] = new TypeTraits(false);
         TreeIndexBulkLoadOperatorDescriptor btreeBulkLoad = new TreeIndexBulkLoadOperatorDescriptor(spec,
-                storageManagerInterface, lcManagerProvider, fileSplitProvider, typeTraits, comparatorFactories, null,
-                fieldPermutation, DEFAULT_BTREE_FILL_FACTOR, false, 0, new BTreeDataflowHelperFactory(),
-                NoOpOperationCallbackFactory.INSTANCE);
+                storageManagerInterface, lcManagerProvider, fileSplitProvider, typeTraits, comparatorFactories,
+                sortFields, fieldPermutation, DEFAULT_BTREE_FILL_FACTOR, false, 0, false,
+                getIndexDataflowHelperFactory(), NoOpOperationCallbackFactory.INSTANCE);
         ClusterConfig.setLocationConstraint(spec, btreeBulkLoad);
 
         /**
          * connect operator descriptors
          */
-        ITuplePartitionComputerFactory hashPartitionComputerFactory = new VertexIdPartitionComputerFactory(
-                new WritableSerializerDeserializerFactory(vertexIdClass));
+        ITuplePartitionComputerFactory hashPartitionComputerFactory = getVertexPartitionComputerFactory();
         spec.connect(new MToNPartitioningConnectorDescriptor(spec, hashPartitionComputerFactory), scanner, 0, sorter, 0);
         spec.connect(new OneToOneConnectorDescriptor(spec), sorter, 0, btreeBulkLoad, 0);
         spec.setFrameSize(frameSize);
@@ -313,8 +323,7 @@
         /**
          * connect operator descriptors
          */
-        ITuplePartitionComputerFactory hashPartitionComputerFactory = new VertexIdPartitionComputerFactory(
-                new WritableSerializerDeserializerFactory(vertexIdClass));
+        ITuplePartitionComputerFactory hashPartitionComputerFactory = getVertexPartitionComputerFactory();
         spec.connect(new OneToOneConnectorDescriptor(spec), scanner, 0, sorter, 0);
         spec.connect(new MToNPartitioningMergingConnectorDescriptor(spec, hashPartitionComputerFactory, sortFields,
                 comparatorFactories), sorter, 0, writer, 0);
@@ -358,7 +367,7 @@
         typeTraits[1] = new TypeTraits(false);
         BTreeSearchOperatorDescriptor scanner = new BTreeSearchOperatorDescriptor(spec, recordDescriptor,
                 storageManagerInterface, lcManagerProvider, fileSplitProvider, typeTraits, comparatorFactories, null,
-                null, null, true, true, new BTreeDataflowHelperFactory(), false, NoOpOperationCallbackFactory.INSTANCE);
+                null, null, true, true, getIndexDataflowHelperFactory(), false, NoOpOperationCallbackFactory.INSTANCE);
         ClusterConfig.setLocationConstraint(spec, scanner);
 
         /**
@@ -381,8 +390,7 @@
          */
         int[] sortFields = new int[1];
         sortFields[0] = 0;
-        ITuplePartitionComputerFactory hashPartitionComputerFactory = new VertexIdPartitionComputerFactory(
-                new WritableSerializerDeserializerFactory(vertexIdClass));
+        ITuplePartitionComputerFactory hashPartitionComputerFactory = getVertexPartitionComputerFactory();
         spec.connect(new OneToOneConnectorDescriptor(spec), emptyTupleSource, 0, scanner, 0);
         spec.connect(new MToNPartitioningMergingConnectorDescriptor(spec, hashPartitionComputerFactory, sortFields,
                 comparatorFactories), scanner, 0, writer, 0);
@@ -428,7 +436,7 @@
 
         BTreeSearchOperatorDescriptor scanner = new BTreeSearchOperatorDescriptor(spec, recordDescriptor,
                 storageManagerInterface, lcManagerProvider, fileSplitProvider, typeTraits, comparatorFactories, null,
-                null, null, true, true, new BTreeDataflowHelperFactory(), false, NoOpOperationCallbackFactory.INSTANCE);
+                null, null, true, true, getIndexDataflowHelperFactory(), false, NoOpOperationCallbackFactory.INSTANCE);
         ClusterConfig.setLocationConstraint(spec, scanner);
 
         /**
@@ -459,7 +467,7 @@
 
         IFileSplitProvider fileSplitProvider = ClusterConfig.getFileSplitProvider(jobId, indexName);
         IndexDropOperatorDescriptor drop = new IndexDropOperatorDescriptor(spec, storageManagerInterface,
-                lcManagerProvider, fileSplitProvider, new BTreeDataflowHelperFactory());
+                lcManagerProvider, fileSplitProvider, getIndexDataflowHelperFactory());
 
         ClusterConfig.setLocationConstraint(spec, drop);
         spec.addRoot(drop);
@@ -467,6 +475,28 @@
         return spec;
     }
 
+    @SuppressWarnings({ "unchecked", "rawtypes" })
+    protected ITuplePartitionComputerFactory getVertexPartitionComputerFactory() {
+        IConfigurationFactory confFactory = new ConfigurationFactory(conf);
+        Class<? extends VertexPartitioner> partitionerClazz = BspUtils.getVertexPartitionerClass(conf);
+        if (partitionerClazz != null) {
+            return new VertexPartitionComputerFactory(confFactory);
+        } else {
+            return new VertexIdPartitionComputerFactory(new WritableSerializerDeserializerFactory(
+                    BspUtils.getVertexIndexClass(conf)));
+        }
+    }
+
+    protected IIndexDataflowHelperFactory getIndexDataflowHelperFactory() {
+        if (BspUtils.useLSM(conf)) {
+            return new LSMBTreeDataflowHelperFactory(new VirtualBufferCacheProvider(), new ConstantMergePolicyProvider(
+                    3), NoOpOperationTrackerProvider.INSTANCE, SynchronousSchedulerProvider.INSTANCE,
+                    NoOpIOOperationCallback.INSTANCE, 0.01);
+        } else {
+            return new BTreeDataflowHelperFactory();
+       }
+    }
+
     /** generate non-first iteration job */
     protected abstract JobSpecification generateNonFirstIteration(int iteration) throws HyracksException;
 
@@ -476,4 +506,4 @@
     /** generate clean-up job */
     public abstract JobSpecification[] generateCleanup() throws HyracksException;
 
-}
\ No newline at end of file
+}
diff --git a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenInnerJoin.java b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenInnerJoin.java
index 9d23ca8..db6c2c8 100644
--- a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenInnerJoin.java
+++ b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenInnerJoin.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -35,14 +35,9 @@
 import edu.uci.ics.hyracks.dataflow.std.group.IAggregatorDescriptorFactory;
 import edu.uci.ics.hyracks.dataflow.std.group.preclustered.PreclusteredGroupOperatorDescriptor;
 import edu.uci.ics.hyracks.dataflow.std.sort.ExternalSortOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.btree.dataflow.BTreeDataflowHelperFactory;
-import edu.uci.ics.hyracks.storage.am.btree.frames.BTreeNSMInteriorFrameFactory;
-import edu.uci.ics.hyracks.storage.am.btree.frames.BTreeNSMLeafFrameFactory;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexFrameFactory;
 import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexInsertUpdateDeleteOperatorDescriptor;
 import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallbackFactory;
 import edu.uci.ics.hyracks.storage.am.common.ophelpers.IndexOperation;
-import edu.uci.ics.hyracks.storage.am.common.tuples.TypeAwareTupleWriterFactory;
 import edu.uci.ics.pregelix.api.graph.MsgList;
 import edu.uci.ics.pregelix.api.job.PregelixJob;
 import edu.uci.ics.pregelix.api.util.BspUtils;
@@ -59,11 +54,11 @@
 import edu.uci.ics.pregelix.dataflow.MaterializingWriteOperatorDescriptor;
 import edu.uci.ics.pregelix.dataflow.TerminationStateWriterOperatorDescriptor;
 import edu.uci.ics.pregelix.dataflow.base.IConfigurationFactory;
-import edu.uci.ics.pregelix.dataflow.std.BTreeSearchFunctionUpdateOperatorDescriptor;
 import edu.uci.ics.pregelix.dataflow.std.IndexNestedLoopJoinFunctionUpdateOperatorDescriptor;
 import edu.uci.ics.pregelix.dataflow.std.IndexNestedLoopJoinOperatorDescriptor;
 import edu.uci.ics.pregelix.dataflow.std.RuntimeHookOperatorDescriptor;
 import edu.uci.ics.pregelix.dataflow.std.TreeIndexBulkReLoadOperatorDescriptor;
+import edu.uci.ics.pregelix.dataflow.std.TreeSearchFunctionUpdateOperatorDescriptor;
 import edu.uci.ics.pregelix.dataflow.std.base.IRecordDescriptorFactory;
 import edu.uci.ics.pregelix.dataflow.std.base.IRuntimeHookFactory;
 import edu.uci.ics.pregelix.runtime.function.ComputeUpdateFunctionFactory;
@@ -72,8 +67,6 @@
 import edu.uci.ics.pregelix.runtime.touchpoint.PostSuperStepRuntimeHookFactory;
 import edu.uci.ics.pregelix.runtime.touchpoint.PreSuperStepRuntimeHookFactory;
 import edu.uci.ics.pregelix.runtime.touchpoint.RuntimeHookFactory;
-import edu.uci.ics.pregelix.runtime.touchpoint.VertexIdPartitionComputerFactory;
-import edu.uci.ics.pregelix.runtime.touchpoint.WritableSerializerDeserializerFactory;
 
 public class JobGenInnerJoin extends JobGen {
 
@@ -135,12 +128,11 @@
                 vertexClass.getName());
         RecordDescriptor rdDelete = DataflowUtils.getRecordDescriptorFromWritableClasses(vertexIdClass.getName());
 
-        BTreeSearchFunctionUpdateOperatorDescriptor scanner = new BTreeSearchFunctionUpdateOperatorDescriptor(spec,
+        TreeSearchFunctionUpdateOperatorDescriptor scanner = new TreeSearchFunctionUpdateOperatorDescriptor(spec,
                 recordDescriptor, storageManagerInterface, lcManagerProvider, fileSplitProvider, typeTraits,
                 comparatorFactories, JobGenUtil.getForwardScan(iteration), null, null, true, true,
-                new BTreeDataflowHelperFactory(), inputRdFactory, 6,
-                new StartComputeUpdateFunctionFactory(confFactory), preHookFactory, null, rdUnnestedMessage, rdDummy,
-                rdPartialAggregate, rdInsert, rdDelete, rdFinal);
+                getIndexDataflowHelperFactory(), inputRdFactory, 6, new StartComputeUpdateFunctionFactory(confFactory),
+                preHookFactory, null, rdUnnestedMessage, rdDummy, rdPartialAggregate, rdInsert, rdDelete, rdFinal);
         ClusterConfig.setLocationConstraint(spec, scanner);
 
         /**
@@ -163,18 +155,18 @@
          * construct bulk-load index operator
          */
         int[] fieldPermutation = new int[] { 0, 1 };
+        int[] keyFields = new int[] { 0 };
         IBinaryComparatorFactory[] indexCmpFactories = new IBinaryComparatorFactory[1];
         indexCmpFactories[0] = JobGenUtil.getIBinaryComparatorFactory(iteration + 1,
                 WritableComparator.get(vertexIdClass).getClass());
         TreeIndexBulkReLoadOperatorDescriptor btreeBulkLoad = new TreeIndexBulkReLoadOperatorDescriptor(spec,
                 storageManagerInterface, lcManagerProvider, secondaryFileSplitProvider, typeTraits, indexCmpFactories,
-                fieldPermutation, DEFAULT_BTREE_FILL_FACTOR, new BTreeDataflowHelperFactory());
+                fieldPermutation, keyFields, DEFAULT_BTREE_FILL_FACTOR, getIndexDataflowHelperFactory());
         ClusterConfig.setLocationConstraint(spec, btreeBulkLoad);
 
         /**
          * construct local sort operator
          */
-        int[] keyFields = new int[] { 0 };
         INormalizedKeyComputerFactory nkmFactory = JobGenUtil.getINormalizedKeyComputerFactory(conf);
         IBinaryComparatorFactory[] sortCmpFactories = new IBinaryComparatorFactory[1];
         sortCmpFactories[0] = JobGenUtil.getIBinaryComparatorFactory(iteration, WritableComparator.get(vertexIdClass)
@@ -223,7 +215,7 @@
          */
         TreeIndexInsertUpdateDeleteOperatorDescriptor insertOp = new TreeIndexInsertUpdateDeleteOperatorDescriptor(
                 spec, rdInsert, storageManagerInterface, lcManagerProvider, fileSplitProvider, typeTraits,
-                comparatorFactories, null, fieldPermutation, IndexOperation.INSERT, new BTreeDataflowHelperFactory(),
+                comparatorFactories, null, fieldPermutation, IndexOperation.INSERT, getIndexDataflowHelperFactory(),
                 null, NoOpOperationCallbackFactory.INSTANCE);
         ClusterConfig.setLocationConstraint(spec, insertOp);
 
@@ -234,7 +226,7 @@
         TreeIndexInsertUpdateDeleteOperatorDescriptor deleteOp = new TreeIndexInsertUpdateDeleteOperatorDescriptor(
                 spec, rdDelete, storageManagerInterface, lcManagerProvider, fileSplitProvider, typeTraits,
                 comparatorFactories, null, fieldPermutationDelete, IndexOperation.DELETE,
-                new BTreeDataflowHelperFactory(), null, NoOpOperationCallbackFactory.INSTANCE);
+                getIndexDataflowHelperFactory(), null, NoOpOperationCallbackFactory.INSTANCE);
         ClusterConfig.setLocationConstraint(spec, deleteOp);
 
         /** construct empty sink operator */
@@ -245,8 +237,7 @@
         EmptySinkOperatorDescriptor emptySink4 = new EmptySinkOperatorDescriptor(spec);
         ClusterConfig.setLocationConstraint(spec, emptySink4);
 
-        ITuplePartitionComputerFactory partionFactory = new VertexIdPartitionComputerFactory(
-                new WritableSerializerDeserializerFactory(vertexIdClass));
+        ITuplePartitionComputerFactory partionFactory = getVertexPartitionComputerFactory();
         ITuplePartitionComputerFactory unifyingPartitionComputerFactory = new MergePartitionComputerFactory();
 
         /** connect all operators **/
@@ -339,14 +330,9 @@
         ITypeTraits[] typeTraits = new ITypeTraits[2];
         typeTraits[0] = new TypeTraits(false);
         typeTraits[1] = new TypeTraits(false);
-        ITreeIndexFrameFactory interiorFrameFactory = new BTreeNSMInteriorFrameFactory(new TypeAwareTupleWriterFactory(
-                typeTraits));
-        ITreeIndexFrameFactory leafFrameFactory = new BTreeNSMLeafFrameFactory(new TypeAwareTupleWriterFactory(
-                typeTraits));
         IndexNestedLoopJoinOperatorDescriptor setUnion = new IndexNestedLoopJoinOperatorDescriptor(spec, rdFinal,
-                storageManagerInterface, lcManagerProvider, secondaryFileSplitProviderRead, interiorFrameFactory,
-                leafFrameFactory, typeTraits, comparatorFactories, true, keyFields, keyFields, true, true,
-                new BTreeDataflowHelperFactory(), true);
+                storageManagerInterface, lcManagerProvider, secondaryFileSplitProviderRead, typeTraits,
+                comparatorFactories, true, keyFields, keyFields, true, true, getIndexDataflowHelperFactory(), true);
         ClusterConfig.setLocationConstraint(spec, setUnion);
 
         /**
@@ -364,7 +350,7 @@
         IndexNestedLoopJoinFunctionUpdateOperatorDescriptor join = new IndexNestedLoopJoinFunctionUpdateOperatorDescriptor(
                 spec, storageManagerInterface, lcManagerProvider, fileSplitProvider, typeTraits, comparatorFactories,
                 JobGenUtil.getForwardScan(iteration), keyFields, keyFields, true, true,
-                new BTreeDataflowHelperFactory(), inputRdFactory, 6, new ComputeUpdateFunctionFactory(confFactory),
+                getIndexDataflowHelperFactory(), inputRdFactory, 6, new ComputeUpdateFunctionFactory(confFactory),
                 preHookFactory, null, rdUnnestedMessage, rdDummy, rdPartialAggregate, rdInsert, rdDelete, rdFinal);
         ClusterConfig.setLocationConstraint(spec, join);
 
@@ -379,7 +365,8 @@
         IFileSplitProvider secondaryFileSplitProviderWrite = ClusterConfig.getFileSplitProvider(jobId, writeFile);
         TreeIndexBulkReLoadOperatorDescriptor btreeBulkLoad = new TreeIndexBulkReLoadOperatorDescriptor(spec,
                 storageManagerInterface, lcManagerProvider, secondaryFileSplitProviderWrite, typeTraits,
-                indexCmpFactories, fieldPermutation, DEFAULT_BTREE_FILL_FACTOR, new BTreeDataflowHelperFactory());
+                indexCmpFactories, fieldPermutation, keyFields, DEFAULT_BTREE_FILL_FACTOR,
+                getIndexDataflowHelperFactory());
         ClusterConfig.setLocationConstraint(spec, btreeBulkLoad);
 
         /**
@@ -447,7 +434,7 @@
          */
         TreeIndexInsertUpdateDeleteOperatorDescriptor insertOp = new TreeIndexInsertUpdateDeleteOperatorDescriptor(
                 spec, rdInsert, storageManagerInterface, lcManagerProvider, fileSplitProvider, typeTraits,
-                comparatorFactories, null, fieldPermutation, IndexOperation.INSERT, new BTreeDataflowHelperFactory(),
+                comparatorFactories, null, fieldPermutation, IndexOperation.INSERT, getIndexDataflowHelperFactory(),
                 null, NoOpOperationCallbackFactory.INSTANCE);
         ClusterConfig.setLocationConstraint(spec, insertOp);
 
@@ -458,7 +445,7 @@
         TreeIndexInsertUpdateDeleteOperatorDescriptor deleteOp = new TreeIndexInsertUpdateDeleteOperatorDescriptor(
                 spec, rdDelete, storageManagerInterface, lcManagerProvider, fileSplitProvider, typeTraits,
                 comparatorFactories, null, fieldPermutationDelete, IndexOperation.DELETE,
-                new BTreeDataflowHelperFactory(), null, NoOpOperationCallbackFactory.INSTANCE);
+                getIndexDataflowHelperFactory(), null, NoOpOperationCallbackFactory.INSTANCE);
         ClusterConfig.setLocationConstraint(spec, deleteOp);
 
         /** construct empty sink operator */
@@ -470,8 +457,7 @@
         ClusterConfig.setLocationConstraint(spec, emptySink4);
 
         ITuplePartitionComputerFactory unifyingPartitionComputerFactory = new MergePartitionComputerFactory();
-        ITuplePartitionComputerFactory partionFactory = new VertexIdPartitionComputerFactory(
-                new WritableSerializerDeserializerFactory(vertexIdClass));
+        ITuplePartitionComputerFactory partionFactory = getVertexPartitionComputerFactory();
         /** connect all operators **/
         spec.connect(new OneToOneConnectorDescriptor(spec), emptyTupleSource, 0, preSuperStep, 0);
         spec.connect(new OneToOneConnectorDescriptor(spec), preSuperStep, 0, materializeRead, 0);
diff --git a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenOuterJoin.java b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenOuterJoin.java
index 250d245..3af8921 100644
--- a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenOuterJoin.java
+++ b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenOuterJoin.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -35,14 +35,9 @@
 import edu.uci.ics.hyracks.dataflow.std.group.IAggregatorDescriptorFactory;
 import edu.uci.ics.hyracks.dataflow.std.group.preclustered.PreclusteredGroupOperatorDescriptor;
 import edu.uci.ics.hyracks.dataflow.std.sort.ExternalSortOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.btree.dataflow.BTreeDataflowHelperFactory;
-import edu.uci.ics.hyracks.storage.am.btree.frames.BTreeNSMInteriorFrameFactory;
-import edu.uci.ics.hyracks.storage.am.btree.frames.BTreeNSMLeafFrameFactory;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexFrameFactory;
 import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexInsertUpdateDeleteOperatorDescriptor;
 import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallbackFactory;
 import edu.uci.ics.hyracks.storage.am.common.ophelpers.IndexOperation;
-import edu.uci.ics.hyracks.storage.am.common.tuples.TypeAwareTupleWriterFactory;
 import edu.uci.ics.pregelix.api.graph.MsgList;
 import edu.uci.ics.pregelix.api.job.PregelixJob;
 import edu.uci.ics.pregelix.api.util.BspUtils;
@@ -59,9 +54,9 @@
 import edu.uci.ics.pregelix.dataflow.MaterializingWriteOperatorDescriptor;
 import edu.uci.ics.pregelix.dataflow.TerminationStateWriterOperatorDescriptor;
 import edu.uci.ics.pregelix.dataflow.base.IConfigurationFactory;
-import edu.uci.ics.pregelix.dataflow.std.BTreeSearchFunctionUpdateOperatorDescriptor;
 import edu.uci.ics.pregelix.dataflow.std.IndexNestedLoopJoinFunctionUpdateOperatorDescriptor;
 import edu.uci.ics.pregelix.dataflow.std.RuntimeHookOperatorDescriptor;
+import edu.uci.ics.pregelix.dataflow.std.TreeSearchFunctionUpdateOperatorDescriptor;
 import edu.uci.ics.pregelix.dataflow.std.base.IRecordDescriptorFactory;
 import edu.uci.ics.pregelix.dataflow.std.base.IRuntimeHookFactory;
 import edu.uci.ics.pregelix.runtime.function.ComputeUpdateFunctionFactory;
@@ -72,8 +67,6 @@
 import edu.uci.ics.pregelix.runtime.touchpoint.PreSuperStepRuntimeHookFactory;
 import edu.uci.ics.pregelix.runtime.touchpoint.RuntimeHookFactory;
 import edu.uci.ics.pregelix.runtime.touchpoint.VertexIdNullWriterFactory;
-import edu.uci.ics.pregelix.runtime.touchpoint.VertexIdPartitionComputerFactory;
-import edu.uci.ics.pregelix.runtime.touchpoint.WritableSerializerDeserializerFactory;
 
 public class JobGenOuterJoin extends JobGen {
 
@@ -129,12 +122,11 @@
                 vertexClass.getName());
         RecordDescriptor rdDelete = DataflowUtils.getRecordDescriptorFromWritableClasses(vertexIdClass.getName());
 
-        BTreeSearchFunctionUpdateOperatorDescriptor scanner = new BTreeSearchFunctionUpdateOperatorDescriptor(spec,
+        TreeSearchFunctionUpdateOperatorDescriptor scanner = new TreeSearchFunctionUpdateOperatorDescriptor(spec,
                 recordDescriptor, storageManagerInterface, lcManagerProvider, fileSplitProvider, typeTraits,
                 comparatorFactories, JobGenUtil.getForwardScan(iteration), null, null, true, true,
-                new BTreeDataflowHelperFactory(), inputRdFactory, 5,
-                new StartComputeUpdateFunctionFactory(confFactory), preHookFactory, null, rdUnnestedMessage, rdDummy,
-                rdPartialAggregate, rdInsert, rdDelete);
+                getIndexDataflowHelperFactory(), inputRdFactory, 5, new StartComputeUpdateFunctionFactory(confFactory),
+                preHookFactory, null, rdUnnestedMessage, rdDummy, rdPartialAggregate, rdInsert, rdDelete);
         ClusterConfig.setLocationConstraint(spec, scanner);
 
         /**
@@ -206,8 +198,8 @@
         int[] fieldPermutation = new int[] { 0, 1 };
         TreeIndexInsertUpdateDeleteOperatorDescriptor insertOp = new TreeIndexInsertUpdateDeleteOperatorDescriptor(
                 spec, rdInsert, storageManagerInterface, lcManagerProvider, fileSplitProvider, typeTraits,
-                comparatorFactories, null, fieldPermutation, IndexOperation.INSERT, new BTreeDataflowHelperFactory(),
-                null, NoOpOperationCallbackFactory.INSTANCE);
+                comparatorFactories, null, fieldPermutation, IndexOperation.INSERT, getIndexDataflowHelperFactory(), null,
+                NoOpOperationCallbackFactory.INSTANCE);
         ClusterConfig.setLocationConstraint(spec, insertOp);
 
         /**
@@ -216,8 +208,8 @@
         int[] fieldPermutationDelete = new int[] { 0 };
         TreeIndexInsertUpdateDeleteOperatorDescriptor deleteOp = new TreeIndexInsertUpdateDeleteOperatorDescriptor(
                 spec, rdDelete, storageManagerInterface, lcManagerProvider, fileSplitProvider, typeTraits,
-                comparatorFactories, null, fieldPermutationDelete, IndexOperation.DELETE,
-                new BTreeDataflowHelperFactory(), null, NoOpOperationCallbackFactory.INSTANCE);
+                comparatorFactories, null, fieldPermutationDelete, IndexOperation.DELETE, getIndexDataflowHelperFactory(),
+                null, NoOpOperationCallbackFactory.INSTANCE);
         ClusterConfig.setLocationConstraint(spec, deleteOp);
 
         /** construct empty sink operator */
@@ -227,8 +219,7 @@
         EmptySinkOperatorDescriptor emptySink4 = new EmptySinkOperatorDescriptor(spec);
         ClusterConfig.setLocationConstraint(spec, emptySink4);
 
-        ITuplePartitionComputerFactory partionFactory = new VertexIdPartitionComputerFactory(
-                new WritableSerializerDeserializerFactory(vertexIdClass));
+        ITuplePartitionComputerFactory partionFactory = getVertexPartitionComputerFactory();
         /** connect all operators **/
         spec.connect(new OneToOneConnectorDescriptor(spec), emptyTupleSource, 0, preSuperStep, 0);
         spec.connect(new OneToOneConnectorDescriptor(spec), preSuperStep, 0, scanner, 0);
@@ -318,10 +309,6 @@
         ITypeTraits[] typeTraits = new ITypeTraits[2];
         typeTraits[0] = new TypeTraits(false);
         typeTraits[1] = new TypeTraits(false);
-        ITreeIndexFrameFactory interiorFrameFactory = new BTreeNSMInteriorFrameFactory(new TypeAwareTupleWriterFactory(
-                typeTraits));
-        ITreeIndexFrameFactory leafFrameFactory = new BTreeNSMLeafFrameFactory(new TypeAwareTupleWriterFactory(
-                typeTraits));
         INullWriterFactory[] nullWriterFactories = new INullWriterFactory[2];
         nullWriterFactories[0] = VertexIdNullWriterFactory.INSTANCE;
         nullWriterFactories[1] = MsgListNullWriterFactory.INSTANCE;
@@ -335,11 +322,10 @@
                 vertexIdClass.getName(), MsgList.class.getName(), vertexIdClass.getName(), vertexClass.getName());
 
         IndexNestedLoopJoinFunctionUpdateOperatorDescriptor join = new IndexNestedLoopJoinFunctionUpdateOperatorDescriptor(
-                spec, storageManagerInterface, lcManagerProvider, fileSplitProvider, interiorFrameFactory,
-                leafFrameFactory, typeTraits, comparatorFactories, JobGenUtil.getForwardScan(iteration), keyFields,
-                keyFields, true, true, new BTreeDataflowHelperFactory(), true, nullWriterFactories, inputRdFactory, 5,
-                new ComputeUpdateFunctionFactory(confFactory), preHookFactory, null, rdUnnestedMessage, rdDummy,
-                rdPartialAggregate, rdInsert, rdDelete);
+                spec, storageManagerInterface, lcManagerProvider, fileSplitProvider, typeTraits, comparatorFactories,
+                JobGenUtil.getForwardScan(iteration), keyFields, keyFields, true, true, getIndexDataflowHelperFactory(), true,
+                nullWriterFactories, inputRdFactory, 5, new ComputeUpdateFunctionFactory(confFactory), preHookFactory,
+                null, rdUnnestedMessage, rdDummy, rdPartialAggregate, rdInsert, rdDelete);
         ClusterConfig.setLocationConstraint(spec, join);
 
         /**
@@ -408,8 +394,8 @@
         int[] fieldPermutation = new int[] { 0, 1 };
         TreeIndexInsertUpdateDeleteOperatorDescriptor insertOp = new TreeIndexInsertUpdateDeleteOperatorDescriptor(
                 spec, rdInsert, storageManagerInterface, lcManagerProvider, fileSplitProvider, typeTraits,
-                comparatorFactories, null, fieldPermutation, IndexOperation.INSERT, new BTreeDataflowHelperFactory(),
-                null, NoOpOperationCallbackFactory.INSTANCE);
+                comparatorFactories, null, fieldPermutation, IndexOperation.INSERT, getIndexDataflowHelperFactory(), null,
+                NoOpOperationCallbackFactory.INSTANCE);
         ClusterConfig.setLocationConstraint(spec, insertOp);
 
         /**
@@ -418,7 +404,7 @@
         int[] fieldPermutationDelete = new int[] { 0 };
         TreeIndexInsertUpdateDeleteOperatorDescriptor deleteOp = new TreeIndexInsertUpdateDeleteOperatorDescriptor(
                 spec, rdDelete, storageManagerInterface, lcManagerProvider, fileSplitProvider, typeTraits,
-                comparatorFactories, null, fieldPermutationDelete, IndexOperation.DELETE, new BTreeDataflowHelperFactory(),
+                comparatorFactories, null, fieldPermutationDelete, IndexOperation.DELETE, getIndexDataflowHelperFactory(),
                 null, NoOpOperationCallbackFactory.INSTANCE);
         ClusterConfig.setLocationConstraint(spec, deleteOp);
 
@@ -431,8 +417,7 @@
         ClusterConfig.setLocationConstraint(spec, emptySink4);
 
         ITuplePartitionComputerFactory unifyingPartitionComputerFactory = new MergePartitionComputerFactory();
-        ITuplePartitionComputerFactory partionFactory = new VertexIdPartitionComputerFactory(
-                new WritableSerializerDeserializerFactory(vertexIdClass));
+        ITuplePartitionComputerFactory partionFactory = getVertexPartitionComputerFactory();
 
         /** connect all operators **/
         spec.connect(new OneToOneConnectorDescriptor(spec), emptyTupleSource, 0, preSuperStep, 0);
diff --git a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenOuterJoinSingleSort.java b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenOuterJoinSingleSort.java
index f796dd7..50949aa 100644
--- a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenOuterJoinSingleSort.java
+++ b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenOuterJoinSingleSort.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -34,14 +34,9 @@
 import edu.uci.ics.hyracks.dataflow.std.group.IAggregatorDescriptorFactory;
 import edu.uci.ics.hyracks.dataflow.std.group.preclustered.PreclusteredGroupOperatorDescriptor;
 import edu.uci.ics.hyracks.dataflow.std.sort.ExternalSortOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.btree.dataflow.BTreeDataflowHelperFactory;
-import edu.uci.ics.hyracks.storage.am.btree.frames.BTreeNSMInteriorFrameFactory;
-import edu.uci.ics.hyracks.storage.am.btree.frames.BTreeNSMLeafFrameFactory;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexFrameFactory;
 import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexInsertUpdateDeleteOperatorDescriptor;
 import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallbackFactory;
 import edu.uci.ics.hyracks.storage.am.common.ophelpers.IndexOperation;
-import edu.uci.ics.hyracks.storage.am.common.tuples.TypeAwareTupleWriterFactory;
 import edu.uci.ics.pregelix.api.graph.MsgList;
 import edu.uci.ics.pregelix.api.job.PregelixJob;
 import edu.uci.ics.pregelix.api.util.BspUtils;
@@ -58,9 +53,9 @@
 import edu.uci.ics.pregelix.dataflow.MaterializingWriteOperatorDescriptor;
 import edu.uci.ics.pregelix.dataflow.TerminationStateWriterOperatorDescriptor;
 import edu.uci.ics.pregelix.dataflow.base.IConfigurationFactory;
-import edu.uci.ics.pregelix.dataflow.std.BTreeSearchFunctionUpdateOperatorDescriptor;
 import edu.uci.ics.pregelix.dataflow.std.IndexNestedLoopJoinFunctionUpdateOperatorDescriptor;
 import edu.uci.ics.pregelix.dataflow.std.RuntimeHookOperatorDescriptor;
+import edu.uci.ics.pregelix.dataflow.std.TreeSearchFunctionUpdateOperatorDescriptor;
 import edu.uci.ics.pregelix.dataflow.std.base.IRecordDescriptorFactory;
 import edu.uci.ics.pregelix.dataflow.std.base.IRuntimeHookFactory;
 import edu.uci.ics.pregelix.runtime.function.ComputeUpdateFunctionFactory;
@@ -71,8 +66,6 @@
 import edu.uci.ics.pregelix.runtime.touchpoint.PreSuperStepRuntimeHookFactory;
 import edu.uci.ics.pregelix.runtime.touchpoint.RuntimeHookFactory;
 import edu.uci.ics.pregelix.runtime.touchpoint.VertexIdNullWriterFactory;
-import edu.uci.ics.pregelix.runtime.touchpoint.VertexIdPartitionComputerFactory;
-import edu.uci.ics.pregelix.runtime.touchpoint.WritableSerializerDeserializerFactory;
 
 public class JobGenOuterJoinSingleSort extends JobGen {
 
@@ -131,12 +124,11 @@
                 vertexClass.getName());
         RecordDescriptor rdDelete = DataflowUtils.getRecordDescriptorFromWritableClasses(vertexIdClass.getName());
 
-        BTreeSearchFunctionUpdateOperatorDescriptor scanner = new BTreeSearchFunctionUpdateOperatorDescriptor(spec,
+        TreeSearchFunctionUpdateOperatorDescriptor scanner = new TreeSearchFunctionUpdateOperatorDescriptor(spec,
                 recordDescriptor, storageManagerInterface, lcManagerProvider, fileSplitProvider, typeTraits,
                 comparatorFactories, JobGenUtil.getForwardScan(iteration), null, null, true, true,
-                new BTreeDataflowHelperFactory(), inputRdFactory, 5,
-                new StartComputeUpdateFunctionFactory(confFactory), preHookFactory, null, rdUnnestedMessage, rdDummy,
-                rdPartialAggregate, rdInsert, rdDelete);
+                getIndexDataflowHelperFactory(), inputRdFactory, 5, new StartComputeUpdateFunctionFactory(confFactory),
+                preHookFactory, null, rdUnnestedMessage, rdDummy, rdPartialAggregate, rdInsert, rdDelete);
         ClusterConfig.setLocationConstraint(spec, scanner);
 
         /**
@@ -198,8 +190,8 @@
         int[] fieldPermutation = new int[] { 0, 1 };
         TreeIndexInsertUpdateDeleteOperatorDescriptor insertOp = new TreeIndexInsertUpdateDeleteOperatorDescriptor(
                 spec, rdInsert, storageManagerInterface, lcManagerProvider, fileSplitProvider, typeTraits,
-                comparatorFactories, null, fieldPermutation, IndexOperation.INSERT, new BTreeDataflowHelperFactory(),
-                null, NoOpOperationCallbackFactory.INSTANCE);
+                comparatorFactories, null, fieldPermutation, IndexOperation.INSERT, getIndexDataflowHelperFactory(), null,
+                NoOpOperationCallbackFactory.INSTANCE);
         ClusterConfig.setLocationConstraint(spec, insertOp);
 
         /**
@@ -208,8 +200,8 @@
         int[] fieldPermutationDelete = new int[] { 0 };
         TreeIndexInsertUpdateDeleteOperatorDescriptor deleteOp = new TreeIndexInsertUpdateDeleteOperatorDescriptor(
                 spec, rdDelete, storageManagerInterface, lcManagerProvider, fileSplitProvider, typeTraits,
-                comparatorFactories, null, fieldPermutationDelete, IndexOperation.DELETE,
-                new BTreeDataflowHelperFactory(), null, NoOpOperationCallbackFactory.INSTANCE);
+                comparatorFactories, null, fieldPermutationDelete, IndexOperation.DELETE, getIndexDataflowHelperFactory(),
+                null, NoOpOperationCallbackFactory.INSTANCE);
         ClusterConfig.setLocationConstraint(spec, deleteOp);
 
         /** construct empty sink operator */
@@ -221,8 +213,7 @@
         ClusterConfig.setLocationConstraint(spec, emptySink4);
 
         ITuplePartitionComputerFactory unifyingPartitionComputerFactory = new MergePartitionComputerFactory();
-        ITuplePartitionComputerFactory partionFactory = new VertexIdPartitionComputerFactory(
-                new WritableSerializerDeserializerFactory(vertexIdClass));
+        ITuplePartitionComputerFactory partionFactory = getVertexPartitionComputerFactory();
         /** connect all operators **/
         spec.connect(new OneToOneConnectorDescriptor(spec), emptyTupleSource, 0, preSuperStep, 0);
         spec.connect(new OneToOneConnectorDescriptor(spec), preSuperStep, 0, scanner, 0);
@@ -307,10 +298,6 @@
         ITypeTraits[] typeTraits = new ITypeTraits[2];
         typeTraits[0] = new TypeTraits(false);
         typeTraits[1] = new TypeTraits(false);
-        ITreeIndexFrameFactory interiorFrameFactory = new BTreeNSMInteriorFrameFactory(new TypeAwareTupleWriterFactory(
-                typeTraits));
-        ITreeIndexFrameFactory leafFrameFactory = new BTreeNSMLeafFrameFactory(new TypeAwareTupleWriterFactory(
-                typeTraits));
         INullWriterFactory[] nullWriterFactories = new INullWriterFactory[2];
         nullWriterFactories[0] = VertexIdNullWriterFactory.INSTANCE;
         nullWriterFactories[1] = MsgListNullWriterFactory.INSTANCE;
@@ -324,11 +311,10 @@
                 vertexIdClass.getName(), MsgList.class.getName(), vertexIdClass.getName(), vertexClass.getName());
 
         IndexNestedLoopJoinFunctionUpdateOperatorDescriptor join = new IndexNestedLoopJoinFunctionUpdateOperatorDescriptor(
-                spec, storageManagerInterface, lcManagerProvider, fileSplitProvider, interiorFrameFactory,
-                leafFrameFactory, typeTraits, comparatorFactories, JobGenUtil.getForwardScan(iteration), keyFields,
-                keyFields, true, true, new BTreeDataflowHelperFactory(), true, nullWriterFactories, inputRdFactory, 5,
-                new ComputeUpdateFunctionFactory(confFactory), preHookFactory, null, rdUnnestedMessage, rdDummy,
-                rdPartialAggregate, rdInsert, rdDelete);
+                spec, storageManagerInterface, lcManagerProvider, fileSplitProvider, typeTraits, comparatorFactories,
+                JobGenUtil.getForwardScan(iteration), keyFields, keyFields, true, true, getIndexDataflowHelperFactory(), true,
+                nullWriterFactories, inputRdFactory, 5, new ComputeUpdateFunctionFactory(confFactory), preHookFactory,
+                null, rdUnnestedMessage, rdDummy, rdPartialAggregate, rdInsert, rdDelete);
         ClusterConfig.setLocationConstraint(spec, join);
 
         /**
@@ -385,8 +371,8 @@
         int[] fieldPermutation = new int[] { 0, 1 };
         TreeIndexInsertUpdateDeleteOperatorDescriptor insertOp = new TreeIndexInsertUpdateDeleteOperatorDescriptor(
                 spec, rdInsert, storageManagerInterface, lcManagerProvider, fileSplitProvider, typeTraits,
-                comparatorFactories, null, fieldPermutation, IndexOperation.INSERT, new BTreeDataflowHelperFactory(),
-                null, NoOpOperationCallbackFactory.INSTANCE);
+                comparatorFactories, null, fieldPermutation, IndexOperation.INSERT, getIndexDataflowHelperFactory(), null,
+                NoOpOperationCallbackFactory.INSTANCE);
         ClusterConfig.setLocationConstraint(spec, insertOp);
 
         /**
@@ -395,8 +381,8 @@
         int[] fieldPermutationDelete = new int[] { 0 };
         TreeIndexInsertUpdateDeleteOperatorDescriptor deleteOp = new TreeIndexInsertUpdateDeleteOperatorDescriptor(
                 spec, rdDelete, storageManagerInterface, lcManagerProvider, fileSplitProvider, typeTraits,
-                comparatorFactories, null, fieldPermutationDelete, IndexOperation.DELETE,
-                new BTreeDataflowHelperFactory(), null, NoOpOperationCallbackFactory.INSTANCE);
+                comparatorFactories, null, fieldPermutationDelete, IndexOperation.DELETE, getIndexDataflowHelperFactory(),
+                null, NoOpOperationCallbackFactory.INSTANCE);
         ClusterConfig.setLocationConstraint(spec, deleteOp);
 
         /** construct empty sink operator */
@@ -408,8 +394,7 @@
         ClusterConfig.setLocationConstraint(spec, emptySink4);
 
         ITuplePartitionComputerFactory unifyingPartitionComputerFactory = new MergePartitionComputerFactory();
-        ITuplePartitionComputerFactory partionFactory = new VertexIdPartitionComputerFactory(
-                new WritableSerializerDeserializerFactory(vertexIdClass));
+        ITuplePartitionComputerFactory partionFactory = getVertexPartitionComputerFactory();
 
         /** connect all operators **/
         spec.connect(new OneToOneConnectorDescriptor(spec), emptyTupleSource, 0, preSuperStep, 0);
diff --git a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenOuterJoinSort.java b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenOuterJoinSort.java
index cb6c215..362e413 100644
--- a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenOuterJoinSort.java
+++ b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenOuterJoinSort.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -34,14 +34,9 @@
 import edu.uci.ics.hyracks.dataflow.std.group.IAggregatorDescriptorFactory;
 import edu.uci.ics.hyracks.dataflow.std.group.preclustered.PreclusteredGroupOperatorDescriptor;
 import edu.uci.ics.hyracks.dataflow.std.sort.ExternalSortOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.btree.dataflow.BTreeDataflowHelperFactory;
-import edu.uci.ics.hyracks.storage.am.btree.frames.BTreeNSMInteriorFrameFactory;
-import edu.uci.ics.hyracks.storage.am.btree.frames.BTreeNSMLeafFrameFactory;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexFrameFactory;
 import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexInsertUpdateDeleteOperatorDescriptor;
 import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallbackFactory;
 import edu.uci.ics.hyracks.storage.am.common.ophelpers.IndexOperation;
-import edu.uci.ics.hyracks.storage.am.common.tuples.TypeAwareTupleWriterFactory;
 import edu.uci.ics.pregelix.api.graph.MsgList;
 import edu.uci.ics.pregelix.api.job.PregelixJob;
 import edu.uci.ics.pregelix.api.util.BspUtils;
@@ -58,9 +53,9 @@
 import edu.uci.ics.pregelix.dataflow.MaterializingWriteOperatorDescriptor;
 import edu.uci.ics.pregelix.dataflow.TerminationStateWriterOperatorDescriptor;
 import edu.uci.ics.pregelix.dataflow.base.IConfigurationFactory;
-import edu.uci.ics.pregelix.dataflow.std.BTreeSearchFunctionUpdateOperatorDescriptor;
 import edu.uci.ics.pregelix.dataflow.std.IndexNestedLoopJoinFunctionUpdateOperatorDescriptor;
 import edu.uci.ics.pregelix.dataflow.std.RuntimeHookOperatorDescriptor;
+import edu.uci.ics.pregelix.dataflow.std.TreeSearchFunctionUpdateOperatorDescriptor;
 import edu.uci.ics.pregelix.dataflow.std.base.IRecordDescriptorFactory;
 import edu.uci.ics.pregelix.dataflow.std.base.IRuntimeHookFactory;
 import edu.uci.ics.pregelix.runtime.function.ComputeUpdateFunctionFactory;
@@ -71,8 +66,6 @@
 import edu.uci.ics.pregelix.runtime.touchpoint.PreSuperStepRuntimeHookFactory;
 import edu.uci.ics.pregelix.runtime.touchpoint.RuntimeHookFactory;
 import edu.uci.ics.pregelix.runtime.touchpoint.VertexIdNullWriterFactory;
-import edu.uci.ics.pregelix.runtime.touchpoint.VertexIdPartitionComputerFactory;
-import edu.uci.ics.pregelix.runtime.touchpoint.WritableSerializerDeserializerFactory;
 
 public class JobGenOuterJoinSort extends JobGen {
 
@@ -128,12 +121,11 @@
                 vertexClass.getName());
         RecordDescriptor rdDelete = DataflowUtils.getRecordDescriptorFromWritableClasses(vertexIdClass.getName());
 
-        BTreeSearchFunctionUpdateOperatorDescriptor scanner = new BTreeSearchFunctionUpdateOperatorDescriptor(spec,
+        TreeSearchFunctionUpdateOperatorDescriptor scanner = new TreeSearchFunctionUpdateOperatorDescriptor(spec,
                 recordDescriptor, storageManagerInterface, lcManagerProvider, fileSplitProvider, typeTraits,
                 comparatorFactories, JobGenUtil.getForwardScan(iteration), null, null, true, true,
-                new BTreeDataflowHelperFactory(), inputRdFactory, 5,
-                new StartComputeUpdateFunctionFactory(confFactory), preHookFactory, null, rdUnnestedMessage, rdDummy,
-                rdPartialAggregate, rdInsert, rdDelete);
+                getIndexDataflowHelperFactory(), inputRdFactory, 5, new StartComputeUpdateFunctionFactory(confFactory),
+                preHookFactory, null, rdUnnestedMessage, rdDummy, rdPartialAggregate, rdInsert, rdDelete);
         ClusterConfig.setLocationConstraint(spec, scanner);
 
         /**
@@ -212,8 +204,8 @@
         int[] fieldPermutation = new int[] { 0, 1 };
         TreeIndexInsertUpdateDeleteOperatorDescriptor insertOp = new TreeIndexInsertUpdateDeleteOperatorDescriptor(
                 spec, rdInsert, storageManagerInterface, lcManagerProvider, fileSplitProvider, typeTraits,
-                comparatorFactories, null, fieldPermutation, IndexOperation.INSERT, new BTreeDataflowHelperFactory(),
-                null, NoOpOperationCallbackFactory.INSTANCE);
+                comparatorFactories, null, fieldPermutation, IndexOperation.INSERT, getIndexDataflowHelperFactory(), null,
+                NoOpOperationCallbackFactory.INSTANCE);
         ClusterConfig.setLocationConstraint(spec, insertOp);
 
         /**
@@ -222,8 +214,8 @@
         int[] fieldPermutationDelete = new int[] { 0 };
         TreeIndexInsertUpdateDeleteOperatorDescriptor deleteOp = new TreeIndexInsertUpdateDeleteOperatorDescriptor(
                 spec, rdDelete, storageManagerInterface, lcManagerProvider, fileSplitProvider, typeTraits,
-                comparatorFactories, null, fieldPermutationDelete, IndexOperation.DELETE,
-                new BTreeDataflowHelperFactory(), null, NoOpOperationCallbackFactory.INSTANCE);
+                comparatorFactories, null, fieldPermutationDelete, IndexOperation.DELETE, getIndexDataflowHelperFactory(),
+                null, NoOpOperationCallbackFactory.INSTANCE);
         ClusterConfig.setLocationConstraint(spec, deleteOp);
 
         /** construct empty sink operator */
@@ -234,8 +226,7 @@
         EmptySinkOperatorDescriptor emptySink4 = new EmptySinkOperatorDescriptor(spec);
         ClusterConfig.setLocationConstraint(spec, emptySink4);
 
-        ITuplePartitionComputerFactory partionFactory = new VertexIdPartitionComputerFactory(
-                new WritableSerializerDeserializerFactory(vertexIdClass));
+        ITuplePartitionComputerFactory partionFactory = getVertexPartitionComputerFactory();
         /** connect all operators **/
         spec.connect(new OneToOneConnectorDescriptor(spec), emptyTupleSource, 0, preSuperStep, 0);
         spec.connect(new OneToOneConnectorDescriptor(spec), preSuperStep, 0, scanner, 0);
@@ -321,10 +312,6 @@
         ITypeTraits[] typeTraits = new ITypeTraits[2];
         typeTraits[0] = new TypeTraits(false);
         typeTraits[1] = new TypeTraits(false);
-        ITreeIndexFrameFactory interiorFrameFactory = new BTreeNSMInteriorFrameFactory(new TypeAwareTupleWriterFactory(
-                typeTraits));
-        ITreeIndexFrameFactory leafFrameFactory = new BTreeNSMLeafFrameFactory(new TypeAwareTupleWriterFactory(
-                typeTraits));
         INullWriterFactory[] nullWriterFactories = new INullWriterFactory[2];
         nullWriterFactories[0] = VertexIdNullWriterFactory.INSTANCE;
         nullWriterFactories[1] = MsgListNullWriterFactory.INSTANCE;
@@ -338,11 +325,10 @@
                 vertexIdClass.getName(), MsgList.class.getName(), vertexIdClass.getName(), vertexClass.getName());
 
         IndexNestedLoopJoinFunctionUpdateOperatorDescriptor join = new IndexNestedLoopJoinFunctionUpdateOperatorDescriptor(
-                spec, storageManagerInterface, lcManagerProvider, fileSplitProvider, interiorFrameFactory,
-                leafFrameFactory, typeTraits, comparatorFactories, JobGenUtil.getForwardScan(iteration), keyFields,
-                keyFields, true, true, new BTreeDataflowHelperFactory(), true, nullWriterFactories, inputRdFactory, 5,
-                new ComputeUpdateFunctionFactory(confFactory), preHookFactory, null, rdUnnestedMessage, rdDummy,
-                rdPartialAggregate, rdInsert, rdDelete);
+                spec, storageManagerInterface, lcManagerProvider, fileSplitProvider, typeTraits, comparatorFactories,
+                JobGenUtil.getForwardScan(iteration), keyFields, keyFields, true, true, getIndexDataflowHelperFactory(), true,
+                nullWriterFactories, inputRdFactory, 5, new ComputeUpdateFunctionFactory(confFactory), preHookFactory,
+                null, rdUnnestedMessage, rdDummy, rdPartialAggregate, rdInsert, rdDelete);
         ClusterConfig.setLocationConstraint(spec, join);
 
         /**
@@ -418,8 +404,8 @@
         int[] fieldPermutation = new int[] { 0, 1 };
         TreeIndexInsertUpdateDeleteOperatorDescriptor insertOp = new TreeIndexInsertUpdateDeleteOperatorDescriptor(
                 spec, rdInsert, storageManagerInterface, lcManagerProvider, fileSplitProvider, typeTraits,
-                comparatorFactories, null, fieldPermutation, IndexOperation.INSERT, new BTreeDataflowHelperFactory(),
-                null, NoOpOperationCallbackFactory.INSTANCE);
+                comparatorFactories, null, fieldPermutation, IndexOperation.INSERT, getIndexDataflowHelperFactory(), null,
+                NoOpOperationCallbackFactory.INSTANCE);
         ClusterConfig.setLocationConstraint(spec, insertOp);
 
         /**
@@ -428,8 +414,8 @@
         int[] fieldPermutationDelete = new int[] { 0 };
         TreeIndexInsertUpdateDeleteOperatorDescriptor deleteOp = new TreeIndexInsertUpdateDeleteOperatorDescriptor(
                 spec, rdDelete, storageManagerInterface, lcManagerProvider, fileSplitProvider, typeTraits,
-                comparatorFactories, null, fieldPermutationDelete, IndexOperation.DELETE,
-                new BTreeDataflowHelperFactory(), null, NoOpOperationCallbackFactory.INSTANCE);
+                comparatorFactories, null, fieldPermutationDelete, IndexOperation.DELETE, getIndexDataflowHelperFactory(),
+                null, NoOpOperationCallbackFactory.INSTANCE);
         ClusterConfig.setLocationConstraint(spec, deleteOp);
 
         /** construct empty sink operator */
@@ -441,8 +427,7 @@
         ClusterConfig.setLocationConstraint(spec, emptySink4);
 
         ITuplePartitionComputerFactory unifyingPartitionComputerFactory = new MergePartitionComputerFactory();
-        ITuplePartitionComputerFactory partionFactory = new VertexIdPartitionComputerFactory(
-                new WritableSerializerDeserializerFactory(vertexIdClass));
+        ITuplePartitionComputerFactory partionFactory = getVertexPartitionComputerFactory();
 
         /** connect all operators **/
         spec.connect(new OneToOneConnectorDescriptor(spec), emptyTupleSource, 0, preSuperStep, 0);
diff --git a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenUtil.java b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenUtil.java
index 319d7cc..c4f54fe 100644
--- a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenUtil.java
+++ b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/JobGenUtil.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/clusterconfig/ClusterConfig.java b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/clusterconfig/ClusterConfig.java
index d26e637..49309ec 100644
--- a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/clusterconfig/ClusterConfig.java
+++ b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/clusterconfig/ClusterConfig.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/runtime/touchpoint/WritableComparingBinaryComparatorFactory.java b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/runtime/touchpoint/WritableComparingBinaryComparatorFactory.java
index 3b2539c..a85bf05 100644
--- a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/runtime/touchpoint/WritableComparingBinaryComparatorFactory.java
+++ b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/runtime/touchpoint/WritableComparingBinaryComparatorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/runtime/touchpoint/WritableRecordDescriptorFactory.java b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/runtime/touchpoint/WritableRecordDescriptorFactory.java
index 145169e..a67c259 100644
--- a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/runtime/touchpoint/WritableRecordDescriptorFactory.java
+++ b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/runtime/touchpoint/WritableRecordDescriptorFactory.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/util/BufferSerDeUtils.java b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/util/BufferSerDeUtils.java
index 3f15197..84e3e78 100644
--- a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/util/BufferSerDeUtils.java
+++ b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/util/BufferSerDeUtils.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/util/DataBalancer.java b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/util/DataBalancer.java
index 9877e97..41fec2b 100644
--- a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/util/DataBalancer.java
+++ b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/util/DataBalancer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/util/DataGenerator.java b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/util/DataGenerator.java
index 466bef3..6dbbdeb 100644
--- a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/util/DataGenerator.java
+++ b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/util/DataGenerator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/util/DataflowUtils.java b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/util/DataflowUtils.java
index e9132c4..0876893 100644
--- a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/util/DataflowUtils.java
+++ b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/util/DataflowUtils.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/util/PregelixHyracksIntegrationUtil.java b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/util/PregelixHyracksIntegrationUtil.java
index 8410e1e..73b053f 100644
--- a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/util/PregelixHyracksIntegrationUtil.java
+++ b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/util/PregelixHyracksIntegrationUtil.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -67,6 +67,7 @@
         ncConfig1.dataIPAddress = "127.0.0.1";
         ncConfig1.datasetIPAddress = "127.0.0.1";
         ncConfig1.nodeId = NC1_ID;
+        ncConfig1.ioDevices="dev1,dev2";
         ncConfig1.appNCMainClass = NCApplicationEntryPoint.class.getName();
         nc1 = new NodeControllerService(ncConfig1);
         nc1.start();
@@ -79,6 +80,7 @@
         ncConfig2.datasetIPAddress = "127.0.0.1";
         ncConfig2.nodeId = NC2_ID;
         ncConfig2.appNCMainClass = NCApplicationEntryPoint.class.getName();
+        ncConfig2.ioDevices="dev1,dev2";
         nc2 = new NodeControllerService(ncConfig2);
         nc2.start();
 
diff --git a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/util/Utilities.java b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/util/Utilities.java
index 3566bf9..5588ac1 100644
--- a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/util/Utilities.java
+++ b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/util/Utilities.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-core/src/main/resources/conf/cluster.properties b/pregelix/pregelix-core/src/main/resources/conf/cluster.properties
index 056cce4..f5d12a1 100644
--- a/pregelix/pregelix-core/src/main/resources/conf/cluster.properties
+++ b/pregelix/pregelix-core/src/main/resources/conf/cluster.properties
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #The CC port for Hyracks clients
 CC_CLIENTPORT=3099
 
diff --git a/pregelix/pregelix-core/src/main/resources/conf/debugnc.properties b/pregelix/pregelix-core/src/main/resources/conf/debugnc.properties
index 27afa26..23e04c6 100755
--- a/pregelix/pregelix-core/src/main/resources/conf/debugnc.properties
+++ b/pregelix/pregelix-core/src/main/resources/conf/debugnc.properties
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #The tmp directory for nc to install jars
 NCTMP_DIR2=/tmp/t-1
 
diff --git a/pregelix/pregelix-core/src/main/resources/conf/stores.properties b/pregelix/pregelix-core/src/main/resources/conf/stores.properties
index d1a4e10..9705f5d 100644
--- a/pregelix/pregelix-core/src/main/resources/conf/stores.properties
+++ b/pregelix/pregelix-core/src/main/resources/conf/stores.properties
@@ -1,2 +1,16 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #Comma separated directories for storing the partitioned graph on each machine
 store=/tmp/teststore1,/tmp/teststore2
\ No newline at end of file
diff --git a/pregelix/pregelix-core/src/main/resources/conf/topology-template.xml b/pregelix/pregelix-core/src/main/resources/conf/topology-template.xml
index 4710706..2d64b15 100755
--- a/pregelix/pregelix-core/src/main/resources/conf/topology-template.xml
+++ b/pregelix/pregelix-core/src/main/resources/conf/topology-template.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <cluster-topology>
     <network-switch name="Global">
         <network-switch name="local">
diff --git a/pregelix/pregelix-core/src/main/resources/scripts/getip.sh b/pregelix/pregelix-core/src/main/resources/scripts/getip.sh
index 1b44d09..d11b091 100755
--- a/pregelix/pregelix-core/src/main/resources/scripts/getip.sh
+++ b/pregelix/pregelix-core/src/main/resources/scripts/getip.sh
@@ -1,4 +1,18 @@
 #!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #
 #------------------------------------------------------------------------
 # Copyright 2009-2013 by The Regents of the University of California
diff --git a/pregelix/pregelix-core/src/main/resources/scripts/pregelix.bat b/pregelix/pregelix-core/src/main/resources/scripts/pregelix.bat
index 536e3c8..fe53029 100644
--- a/pregelix/pregelix-core/src/main/resources/scripts/pregelix.bat
+++ b/pregelix/pregelix-core/src/main/resources/scripts/pregelix.bat
@@ -1,3 +1,17 @@
+@rem /*
+@rem Copyright 2009-2013 by The Regents of the University of California
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem you may obtain a copy of the License from
+@rem 
+@rem     http://www.apache.org/licenses/LICENSE-2.0
+@rem 
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem */
 @REM ----------------------------------------------------------------------------
 @REM  Copyright 2001-2006 The Apache Software Foundation.
 @REM
diff --git a/pregelix/pregelix-core/src/main/resources/scripts/startAllNCs.sh b/pregelix/pregelix-core/src/main/resources/scripts/startAllNCs.sh
index 821be00..afad064 100644
--- a/pregelix/pregelix-core/src/main/resources/scripts/startAllNCs.sh
+++ b/pregelix/pregelix-core/src/main/resources/scripts/startAllNCs.sh
@@ -1,4 +1,18 @@
 #!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #
 #------------------------------------------------------------------------
 # Copyright 2009-2013 by The Regents of the University of California
diff --git a/pregelix/pregelix-core/src/main/resources/scripts/startCluster.sh b/pregelix/pregelix-core/src/main/resources/scripts/startCluster.sh
index cddf9a4..55851e9 100644
--- a/pregelix/pregelix-core/src/main/resources/scripts/startCluster.sh
+++ b/pregelix/pregelix-core/src/main/resources/scripts/startCluster.sh
@@ -1,4 +1,18 @@
 #!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #
 #------------------------------------------------------------------------
 # Copyright 2009-2013 by The Regents of the University of California
diff --git a/pregelix/pregelix-core/src/main/resources/scripts/startDebugNc.sh b/pregelix/pregelix-core/src/main/resources/scripts/startDebugNc.sh
index bb43686..8169bc9 100755
--- a/pregelix/pregelix-core/src/main/resources/scripts/startDebugNc.sh
+++ b/pregelix/pregelix-core/src/main/resources/scripts/startDebugNc.sh
@@ -1,4 +1,18 @@
 #!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #
 #------------------------------------------------------------------------
 # Copyright 2009-2013 by The Regents of the University of California
diff --git a/pregelix/pregelix-core/src/main/resources/scripts/startcc.sh b/pregelix/pregelix-core/src/main/resources/scripts/startcc.sh
index 282a6e7..2a6cab2 100644
--- a/pregelix/pregelix-core/src/main/resources/scripts/startcc.sh
+++ b/pregelix/pregelix-core/src/main/resources/scripts/startcc.sh
@@ -1,4 +1,18 @@
 #!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #
 #------------------------------------------------------------------------
 # Copyright 2009-2013 by The Regents of the University of California
diff --git a/pregelix/pregelix-core/src/main/resources/scripts/startnc.sh b/pregelix/pregelix-core/src/main/resources/scripts/startnc.sh
index 970c30b..6727bd5 100644
--- a/pregelix/pregelix-core/src/main/resources/scripts/startnc.sh
+++ b/pregelix/pregelix-core/src/main/resources/scripts/startnc.sh
@@ -1,4 +1,18 @@
 #!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #
 #------------------------------------------------------------------------
 # Copyright 2009-2013 by The Regents of the University of California
diff --git a/pregelix/pregelix-core/src/main/resources/scripts/stopAllNCs.sh b/pregelix/pregelix-core/src/main/resources/scripts/stopAllNCs.sh
index dc576d1..b581208 100644
--- a/pregelix/pregelix-core/src/main/resources/scripts/stopAllNCs.sh
+++ b/pregelix/pregelix-core/src/main/resources/scripts/stopAllNCs.sh
@@ -1,4 +1,18 @@
 #!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #
 #------------------------------------------------------------------------
 # Copyright 2009-2013 by The Regents of the University of California
diff --git a/pregelix/pregelix-core/src/main/resources/scripts/stopCluster.sh b/pregelix/pregelix-core/src/main/resources/scripts/stopCluster.sh
index 6b829aa..4b5e5a5 100644
--- a/pregelix/pregelix-core/src/main/resources/scripts/stopCluster.sh
+++ b/pregelix/pregelix-core/src/main/resources/scripts/stopCluster.sh
@@ -1,4 +1,18 @@
 #!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #
 #------------------------------------------------------------------------
 # Copyright 2009-2013 by The Regents of the University of California
diff --git a/pregelix/pregelix-core/src/main/resources/scripts/stopcc.sh b/pregelix/pregelix-core/src/main/resources/scripts/stopcc.sh
index 8f94fb7..bd07e21 100644
--- a/pregelix/pregelix-core/src/main/resources/scripts/stopcc.sh
+++ b/pregelix/pregelix-core/src/main/resources/scripts/stopcc.sh
@@ -1,4 +1,18 @@
 #!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #
 #------------------------------------------------------------------------
 # Copyright 2009-2013 by The Regents of the University of California
diff --git a/pregelix/pregelix-core/src/main/resources/scripts/stopnc.sh b/pregelix/pregelix-core/src/main/resources/scripts/stopnc.sh
index 26ef089..830fc7b 100644
--- a/pregelix/pregelix-core/src/main/resources/scripts/stopnc.sh
+++ b/pregelix/pregelix-core/src/main/resources/scripts/stopnc.sh
@@ -1,4 +1,18 @@
 #!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #
 #------------------------------------------------------------------------
 # Copyright 2009-2013 by The Regents of the University of California
diff --git a/pregelix/pregelix-core/src/test/java/edu/uci/ics/pregelix/core/join/JoinTest.java b/pregelix/pregelix-core/src/test/java/edu/uci/ics/pregelix/core/join/JoinTest.java
index 3c00cad..4c7f91d 100644
--- a/pregelix/pregelix-core/src/test/java/edu/uci/ics/pregelix/core/join/JoinTest.java
+++ b/pregelix/pregelix-core/src/test/java/edu/uci/ics/pregelix/core/join/JoinTest.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -278,7 +278,7 @@
             typeTraits[i] = new TypeTraits(false);
         TreeIndexBulkLoadOperatorDescriptor writer = new TreeIndexBulkLoadOperatorDescriptor(spec,
                 storageManagerInterface, lcManagerProvider, fileSplitProvider, typeTraits, comparatorFactories, null,
-                fieldPermutation, DEFAULT_BTREE_FILL_FACTOR, false, 0, new BTreeDataflowHelperFactory(),
+                fieldPermutation, DEFAULT_BTREE_FILL_FACTOR, false, 0, false, new BTreeDataflowHelperFactory(),
                 NoOpOperationCallbackFactory.INSTANCE);
         PartitionConstraintHelper.addAbsoluteLocationConstraint(spec, writer, NC1_ID, NC2_ID);
 
diff --git a/pregelix/pregelix-core/src/test/java/edu/uci/ics/pregelix/core/join/JoinTestNullWriterFactory.java b/pregelix/pregelix-core/src/test/java/edu/uci/ics/pregelix/core/join/JoinTestNullWriterFactory.java
index 8f2e546..3f8816d 100644
--- a/pregelix/pregelix-core/src/test/java/edu/uci/ics/pregelix/core/join/JoinTestNullWriterFactory.java
+++ b/pregelix/pregelix-core/src/test/java/edu/uci/ics/pregelix/core/join/JoinTestNullWriterFactory.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-core/src/test/java/edu/uci/ics/pregelix/core/util/TestUtils.java b/pregelix/pregelix-core/src/test/java/edu/uci/ics/pregelix/core/util/TestUtils.java
index 83dd10d..ffd65d0 100644
--- a/pregelix/pregelix-core/src/test/java/edu/uci/ics/pregelix/core/util/TestUtils.java
+++ b/pregelix/pregelix-core/src/test/java/edu/uci/ics/pregelix/core/util/TestUtils.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-core/src/test/resources/cluster/cluster.properties b/pregelix/pregelix-core/src/test/resources/cluster/cluster.properties
index 14f8bd4..baa8a24 100644
--- a/pregelix/pregelix-core/src/test/resources/cluster/cluster.properties
+++ b/pregelix/pregelix-core/src/test/resources/cluster/cluster.properties
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #The CC port for Hyracks clients
 CC_CLIENTPORT=3099
 
diff --git a/pregelix/pregelix-core/src/test/resources/cluster/data.properties b/pregelix/pregelix-core/src/test/resources/cluster/data.properties
index daf881e..92e2bea 100644
--- a/pregelix/pregelix-core/src/test/resources/cluster/data.properties
+++ b/pregelix/pregelix-core/src/test/resources/cluster/data.properties
@@ -1 +1,15 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 store=teststore
\ No newline at end of file
diff --git a/pregelix/pregelix-core/src/test/resources/hadoop/conf/core-site.xml b/pregelix/pregelix-core/src/test/resources/hadoop/conf/core-site.xml
index 47dfac5..5b1023c 100644
--- a/pregelix/pregelix-core/src/test/resources/hadoop/conf/core-site.xml
+++ b/pregelix/pregelix-core/src/test/resources/hadoop/conf/core-site.xml
@@ -1,4 +1,18 @@
 <?xml version="1.0"?>
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
 
 <!-- Put site-specific property overrides in this file. -->
diff --git a/pregelix/pregelix-core/src/test/resources/hadoop/conf/hdfs-site.xml b/pregelix/pregelix-core/src/test/resources/hadoop/conf/hdfs-site.xml
index 8d29b1d..bff9a3e 100644
--- a/pregelix/pregelix-core/src/test/resources/hadoop/conf/hdfs-site.xml
+++ b/pregelix/pregelix-core/src/test/resources/hadoop/conf/hdfs-site.xml
@@ -1,4 +1,18 @@
 <?xml version="1.0"?>
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
 
 <!-- Put site-specific property overrides in this file. -->
diff --git a/pregelix/pregelix-core/src/test/resources/hadoop/conf/log4j.properties b/pregelix/pregelix-core/src/test/resources/hadoop/conf/log4j.properties
index d5e6004..0be7ebf 100755
--- a/pregelix/pregelix-core/src/test/resources/hadoop/conf/log4j.properties
+++ b/pregelix/pregelix-core/src/test/resources/hadoop/conf/log4j.properties
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 # Define some default values that can be overridden by system properties
 hadoop.root.logger=FATAL,console
 hadoop.log.dir=.
diff --git a/pregelix/pregelix-core/src/test/resources/hadoop/conf/mapred-site.xml b/pregelix/pregelix-core/src/test/resources/hadoop/conf/mapred-site.xml
index f89dd79..f8263b7 100644
--- a/pregelix/pregelix-core/src/test/resources/hadoop/conf/mapred-site.xml
+++ b/pregelix/pregelix-core/src/test/resources/hadoop/conf/mapred-site.xml
@@ -1,4 +1,18 @@
 <?xml version="1.0"?>
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
 
 <!-- Put site-specific property overrides in this file. -->
diff --git a/pregelix/pregelix-core/src/test/resources/hyracks-deployment.properties b/pregelix/pregelix-core/src/test/resources/hyracks-deployment.properties
index 2ae9818..cb1f1c4 100644
--- a/pregelix/pregelix-core/src/test/resources/hyracks-deployment.properties
+++ b/pregelix/pregelix-core/src/test/resources/hyracks-deployment.properties
@@ -1,2 +1,16 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #cc.bootstrap.class=edu.uci.ics.asterix.hyracks.bootstrap.CCBootstrapImpl
 nc.bootstrap.class=edu.uci.ics.pregelix.runtime.bootstrap.NCBootstrapImpl
\ No newline at end of file
diff --git a/pregelix/pregelix-core/src/test/resources/log4j.properties b/pregelix/pregelix-core/src/test/resources/log4j.properties
index d5e6004..0be7ebf 100755
--- a/pregelix/pregelix-core/src/test/resources/log4j.properties
+++ b/pregelix/pregelix-core/src/test/resources/log4j.properties
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 # Define some default values that can be overridden by system properties
 hadoop.root.logger=FATAL,console
 hadoop.log.dir=.
diff --git a/pregelix/pregelix-core/src/test/resources/logging.properties b/pregelix/pregelix-core/src/test/resources/logging.properties
index f43eb05..970bbb3 100644
--- a/pregelix/pregelix-core/src/test/resources/logging.properties
+++ b/pregelix/pregelix-core/src/test/resources/logging.properties
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 ############################################################
 #  	Default Logging Configuration File
 #
diff --git a/pregelix/pregelix-core/src/test/resources/topology.xml b/pregelix/pregelix-core/src/test/resources/topology.xml
index 4710706..2d64b15 100755
--- a/pregelix/pregelix-core/src/test/resources/topology.xml
+++ b/pregelix/pregelix-core/src/test/resources/topology.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <cluster-topology>
     <network-switch name="Global">
         <network-switch name="local">
diff --git a/pregelix/pregelix-dataflow-std-base/pom.xml b/pregelix/pregelix-dataflow-std-base/pom.xml
index 1209496..35a6c91 100644
--- a/pregelix/pregelix-dataflow-std-base/pom.xml
+++ b/pregelix/pregelix-dataflow-std-base/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>pregelix-dataflow-std-base</artifactId>
@@ -7,7 +21,7 @@
 	<parent>
     		<groupId>edu.uci.ics.hyracks</groupId>
     		<artifactId>pregelix</artifactId>
-    		<version>0.2.6-SNAPSHOT</version>
+    		<version>0.2.7-SNAPSHOT</version>
   	</parent>
 
 
@@ -74,14 +88,14 @@
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>pregelix-api</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-api</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
diff --git a/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IAggregateFunction.java b/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IAggregateFunction.java
index c05e9b9..97db63f 100644
--- a/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IAggregateFunction.java
+++ b/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IAggregateFunction.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IAggregateFunctionFactory.java b/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IAggregateFunctionFactory.java
index dc75b07..58795d1 100644
--- a/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IAggregateFunctionFactory.java
+++ b/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IAggregateFunctionFactory.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IFunction.java b/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IFunction.java
index 23cb9c5..797e89e 100644
--- a/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IFunction.java
+++ b/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IFunction.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IFunctionFactory.java b/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IFunctionFactory.java
index d0e70e5..b7292e2 100644
--- a/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IFunctionFactory.java
+++ b/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IFunctionFactory.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IRecordDescriptorFactory.java b/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IRecordDescriptorFactory.java
index 7454f2d..ba0b0fb 100644
--- a/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IRecordDescriptorFactory.java
+++ b/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IRecordDescriptorFactory.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IRuntimeHook.java b/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IRuntimeHook.java
index f46166f..89ab664 100644
--- a/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IRuntimeHook.java
+++ b/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IRuntimeHook.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IRuntimeHookFactory.java b/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IRuntimeHookFactory.java
index 009804c..e542f62 100644
--- a/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IRuntimeHookFactory.java
+++ b/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IRuntimeHookFactory.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/ISerializerDeserializerFactory.java b/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/ISerializerDeserializerFactory.java
index 16b067a..1fdd0b6 100644
--- a/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/ISerializerDeserializerFactory.java
+++ b/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/ISerializerDeserializerFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.pregelix.dataflow.std.base;
 
 import java.io.Serializable;
diff --git a/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IUpdateFunction.java b/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IUpdateFunction.java
index a0d365f..b8ba7bd 100644
--- a/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IUpdateFunction.java
+++ b/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IUpdateFunction.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IUpdateFunctionFactory.java b/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IUpdateFunctionFactory.java
index b974c76..504bd4c 100644
--- a/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IUpdateFunctionFactory.java
+++ b/pregelix/pregelix-dataflow-std-base/src/main/java/edu/uci/ics/pregelix/dataflow/std/base/IUpdateFunctionFactory.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-dataflow-std/pom.xml b/pregelix/pregelix-dataflow-std/pom.xml
index 585e82b..3604e57 100644
--- a/pregelix/pregelix-dataflow-std/pom.xml
+++ b/pregelix/pregelix-dataflow-std/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>pregelix-dataflow-std</artifactId>
@@ -7,7 +21,7 @@
 	<parent>
 		<groupId>edu.uci.ics.hyracks</groupId>
 		<artifactId>pregelix</artifactId>
-		<version>0.2.6-SNAPSHOT</version>
+		<version>0.2.7-SNAPSHOT</version>
 	</parent>
 
 
@@ -74,77 +88,84 @@
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>pregelix-dataflow-std-base</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-dataflow-std</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-api</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-dataflow-common</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-data-std</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-hdfs-core</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-storage-am-common</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-storage-am-btree</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
+			<type>jar</type>
+			<scope>compile</scope>
+		</dependency>
+		<dependency>
+			<groupId>edu.uci.ics.hyracks</groupId>
+			<artifactId>hyracks-storage-am-lsm-btree</artifactId>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-control-cc</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-control-nc</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-ipc</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
diff --git a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/FunctionCallOperatorDescriptor.java b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/FunctionCallOperatorDescriptor.java
index 24d28b0..5ba2c91 100644
--- a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/FunctionCallOperatorDescriptor.java
+++ b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/FunctionCallOperatorDescriptor.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/IndexNestedLoopJoinFunctionUpdateOperatorDescriptor.java b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/IndexNestedLoopJoinFunctionUpdateOperatorDescriptor.java
index d42c3a0..3403afc 100644
--- a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/IndexNestedLoopJoinFunctionUpdateOperatorDescriptor.java
+++ b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/IndexNestedLoopJoinFunctionUpdateOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -27,7 +27,6 @@
 import edu.uci.ics.hyracks.api.job.JobSpecification;
 import edu.uci.ics.hyracks.dataflow.std.file.IFileSplitProvider;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndexLifecycleManagerProvider;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexFrameFactory;
 import edu.uci.ics.hyracks.storage.am.common.dataflow.AbstractTreeIndexOperatorDescriptor;
 import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndexDataflowHelperFactory;
 import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallbackFactory;
@@ -92,8 +91,7 @@
 
     public IndexNestedLoopJoinFunctionUpdateOperatorDescriptor(JobSpecification spec,
             IStorageManagerInterface storageManager, IIndexLifecycleManagerProvider lcManagerProvider,
-            IFileSplitProvider fileSplitProvider, ITreeIndexFrameFactory interiorFrameFactory,
-            ITreeIndexFrameFactory leafFrameFactory, ITypeTraits[] typeTraits,
+            IFileSplitProvider fileSplitProvider, ITypeTraits[] typeTraits,
             IBinaryComparatorFactory[] comparatorFactories, boolean isForward, int[] lowKeyFields, int[] highKeyFields,
             boolean lowKeyInclusive, boolean highKeyInclusive, IIndexDataflowHelperFactory opHelperFactory,
             boolean isRightOuter, INullWriterFactory[] nullWriterFactories, IRecordDescriptorFactory inputRdFactory,
@@ -126,8 +124,7 @@
 
     public IndexNestedLoopJoinFunctionUpdateOperatorDescriptor(JobSpecification spec,
             IStorageManagerInterface storageManager, IIndexLifecycleManagerProvider lcManagerProvider,
-            IFileSplitProvider fileSplitProvider, ITreeIndexFrameFactory interiorFrameFactory,
-            ITreeIndexFrameFactory leafFrameFactory, ITypeTraits[] typeTraits,
+            IFileSplitProvider fileSplitProvider, ITypeTraits[] typeTraits,
             IBinaryComparatorFactory[] comparatorFactories, boolean isForward, int[] lowKeyFields, int[] highKeyFields,
             boolean lowKeyInclusive, boolean highKeyInclusive, IIndexDataflowHelperFactory opHelperFactory,
             boolean isSetUnion, IRecordDescriptorFactory inputRdFactory, int outputArity,
diff --git a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/IndexNestedLoopJoinFunctionUpdateOperatorNodePushable.java b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/IndexNestedLoopJoinFunctionUpdateOperatorNodePushable.java
index fa184fb..5156dbf 100644
--- a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/IndexNestedLoopJoinFunctionUpdateOperatorNodePushable.java
+++ b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/IndexNestedLoopJoinFunctionUpdateOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -28,15 +28,12 @@
 import edu.uci.ics.hyracks.dataflow.common.comm.io.FrameTupleAppender;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
 import edu.uci.ics.hyracks.dataflow.std.base.AbstractUnaryInputOperatorNodePushable;
-import edu.uci.ics.hyracks.storage.am.btree.api.IBTreeLeafFrame;
-import edu.uci.ics.hyracks.storage.am.btree.impls.BTree;
-import edu.uci.ics.hyracks.storage.am.btree.impls.BTreeRangeSearchCursor;
 import edu.uci.ics.hyracks.storage.am.btree.impls.RangePredicate;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexAccessor;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexCursor;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexFrame;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndexAccessor;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndexCursor;
+import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndex;
 import edu.uci.ics.hyracks.storage.am.common.dataflow.AbstractTreeIndexOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexDataflowHelper;
+import edu.uci.ics.hyracks.storage.am.common.dataflow.IndexDataflowHelper;
 import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallback;
 import edu.uci.ics.hyracks.storage.am.common.ophelpers.MultiComparator;
 import edu.uci.ics.hyracks.storage.am.common.tuples.PermutingFrameTupleReference;
@@ -49,12 +46,12 @@
 import edu.uci.ics.pregelix.dataflow.util.UpdateBuffer;
 
 public class IndexNestedLoopJoinFunctionUpdateOperatorNodePushable extends AbstractUnaryInputOperatorNodePushable {
-    private TreeIndexDataflowHelper treeIndexOpHelper;
+    private IndexDataflowHelper treeIndexOpHelper;
     private FrameTupleAccessor accessor;
 
     private ByteBuffer writeBuffer;
     private FrameTupleAppender appender;
-    private BTree btree;
+    private ITreeIndex index;
     private PermutingFrameTupleReference lowKey;
     private PermutingFrameTupleReference highKey;
     private boolean lowKeyInclusive;
@@ -62,9 +59,8 @@
     private RangePredicate rangePred;
     private MultiComparator lowKeySearchCmp;
     private MultiComparator highKeySearchCmp;
-    private ITreeIndexCursor cursor;
-    private ITreeIndexFrame cursorFrame;
-    protected ITreeIndexAccessor indexAccessor;
+    private IIndexCursor cursor;
+    protected IIndexAccessor indexAccessor;
 
     private RecordDescriptor recDesc;
     private final IFrameWriter[] writers;
@@ -79,7 +75,7 @@
             IUpdateFunctionFactory functionFactory, IRuntimeHookFactory preHookFactory,
             IRuntimeHookFactory postHookFactory, IRecordDescriptorFactory inputRdFactory, int outputArity)
             throws HyracksDataException {
-        treeIndexOpHelper = (TreeIndexDataflowHelper) opDesc.getIndexDataflowHelperFactory().createIndexDataflowHelper(
+        treeIndexOpHelper = (IndexDataflowHelper) opDesc.getIndexDataflowHelperFactory().createIndexDataflowHelper(
                 opDesc, ctx, partition);
         this.lowKeyInclusive = lowKeyInclusive;
         this.highKeyInclusive = highKeyInclusive;
@@ -100,7 +96,7 @@
     }
 
     protected void setCursor() {
-        cursor = new BTreeRangeSearchCursor((IBTreeLeafFrame) cursorFrame, true);
+        cursor = indexAccessor.createSearchCursor();
     }
 
     @Override
@@ -113,13 +109,11 @@
 
         try {
             treeIndexOpHelper.open();
-            btree = (BTree) treeIndexOpHelper.getIndexInstance();
-            cursorFrame = btree.getLeafFrameFactory().createFrame();
-            setCursor();
+            index = (ITreeIndex) treeIndexOpHelper.getIndexInstance();
 
             // TODO: Can we construct the multicmps using helper methods?
-            int lowKeySearchFields = btree.getComparatorFactories().length;
-            int highKeySearchFields = btree.getComparatorFactories().length;
+            int lowKeySearchFields = index.getComparatorFactories().length;
+            int highKeySearchFields = index.getComparatorFactories().length;
             if (lowKey != null)
                 lowKeySearchFields = lowKey.getFieldCount();
             if (highKey != null)
@@ -127,7 +121,7 @@
 
             IBinaryComparator[] lowKeySearchComparators = new IBinaryComparator[lowKeySearchFields];
             for (int i = 0; i < lowKeySearchFields; i++) {
-                lowKeySearchComparators[i] = btree.getComparatorFactories()[i].createBinaryComparator();
+                lowKeySearchComparators[i] = index.getComparatorFactories()[i].createBinaryComparator();
             }
             lowKeySearchCmp = new MultiComparator(lowKeySearchComparators);
 
@@ -136,10 +130,9 @@
             } else {
                 IBinaryComparator[] highKeySearchComparators = new IBinaryComparator[highKeySearchFields];
                 for (int i = 0; i < highKeySearchFields; i++) {
-                    highKeySearchComparators[i] = btree.getComparatorFactories()[i].createBinaryComparator();
+                    highKeySearchComparators[i] = index.getComparatorFactories()[i].createBinaryComparator();
                 }
                 highKeySearchCmp = new MultiComparator(highKeySearchComparators);
-
             }
 
             rangePred = new RangePredicate(null, null, lowKeyInclusive, highKeyInclusive, lowKeySearchCmp,
@@ -148,9 +141,10 @@
             appender = new FrameTupleAppender(treeIndexOpHelper.getTaskContext().getFrameSize());
             appender.reset(writeBuffer, true);
 
-            indexAccessor = btree.createAccessor(NoOpOperationCallback.INSTANCE, NoOpOperationCallback.INSTANCE);
-            cloneUpdateTb = new ArrayTupleBuilder(btree.getFieldCount());
-            updateBuffer.setFieldCount(btree.getFieldCount());
+            indexAccessor = index.createAccessor(NoOpOperationCallback.INSTANCE, NoOpOperationCallback.INSTANCE);
+            setCursor();
+            cloneUpdateTb = new ArrayTupleBuilder(index.getFieldCount());
+            updateBuffer.setFieldCount(index.getFieldCount());
         } catch (Exception e) {
             treeIndexOpHelper.close();
             throw new HyracksDataException(e);
@@ -202,7 +196,7 @@
             try {
                 cursor.close();
                 //batch update
-                updateBuffer.updateBTree(indexAccessor);
+                updateBuffer.updateIndex(indexAccessor);
             } catch (Exception e) {
                 throw new HyracksDataException(e);
             }
@@ -227,4 +221,4 @@
         writers[index] = writer;
     }
 
-}
\ No newline at end of file
+}
diff --git a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/IndexNestedLoopJoinOperatorDescriptor.java b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/IndexNestedLoopJoinOperatorDescriptor.java
index d237761..440ae86 100644
--- a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/IndexNestedLoopJoinOperatorDescriptor.java
+++ b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/IndexNestedLoopJoinOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -87,8 +87,7 @@
 
     public IndexNestedLoopJoinOperatorDescriptor(JobSpecification spec, RecordDescriptor recDesc,
             IStorageManagerInterface storageManager, IIndexLifecycleManagerProvider lcManagerProvider,
-            IFileSplitProvider fileSplitProvider, ITreeIndexFrameFactory interiorFrameFactory,
-            ITreeIndexFrameFactory leafFrameFactory, ITypeTraits[] typeTraits,
+            IFileSplitProvider fileSplitProvider, ITypeTraits[] typeTraits,
             IBinaryComparatorFactory[] comparatorFactories, boolean isForward, int[] lowKeyFields, int[] highKeyFields,
             boolean lowKeyInclusive, boolean highKeyInclusive, IIndexDataflowHelperFactory opHelperFactory,
             boolean isSetUnion) {
diff --git a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/IndexNestedLoopJoinOperatorNodePushable.java b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/IndexNestedLoopJoinOperatorNodePushable.java
index 8b9bfc2..2ddca90 100644
--- a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/IndexNestedLoopJoinOperatorNodePushable.java
+++ b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/IndexNestedLoopJoinOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -29,18 +29,18 @@
 import edu.uci.ics.hyracks.dataflow.common.comm.util.FrameUtils;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
 import edu.uci.ics.hyracks.dataflow.std.base.AbstractUnaryInputUnaryOutputOperatorNodePushable;
-import edu.uci.ics.hyracks.storage.am.btree.impls.BTree;
 import edu.uci.ics.hyracks.storage.am.btree.impls.RangePredicate;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndexAccessor;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndexCursor;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexAccessor;
+import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndex;
 import edu.uci.ics.hyracks.storage.am.common.dataflow.AbstractTreeIndexOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexDataflowHelper;
+import edu.uci.ics.hyracks.storage.am.common.dataflow.IndexDataflowHelper;
 import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallback;
 import edu.uci.ics.hyracks.storage.am.common.ophelpers.MultiComparator;
 import edu.uci.ics.hyracks.storage.am.common.tuples.PermutingFrameTupleReference;
 
 public class IndexNestedLoopJoinOperatorNodePushable extends AbstractUnaryInputUnaryOutputOperatorNodePushable {
-    private TreeIndexDataflowHelper treeIndexOpHelper;
+    private IndexDataflowHelper treeIndexOpHelper;
     private FrameTupleAccessor accessor;
 
     private ByteBuffer writeBuffer;
@@ -48,7 +48,7 @@
     private ArrayTupleBuilder tb;
     private DataOutput dos;
 
-    private BTree btree;
+    private ITreeIndex index;
     private PermutingFrameTupleReference lowKey;
     private PermutingFrameTupleReference highKey;
     private boolean lowKeyInclusive;
@@ -57,7 +57,7 @@
     private MultiComparator lowKeySearchCmp;
     private MultiComparator highKeySearchCmp;
     private IIndexCursor cursor;
-    protected ITreeIndexAccessor indexAccessor;
+    protected IIndexAccessor indexAccessor;
 
     private RecordDescriptor recDesc;
     private final RecordDescriptor inputRecDesc;
@@ -66,7 +66,7 @@
             int partition, IRecordDescriptorProvider recordDescProvider, boolean isForward, int[] lowKeyFields,
             int[] highKeyFields, boolean lowKeyInclusive, boolean highKeyInclusive) {
         inputRecDesc = recordDescProvider.getInputRecordDescriptor(opDesc.getActivityId(), 0);
-        treeIndexOpHelper = (TreeIndexDataflowHelper) opDesc.getIndexDataflowHelperFactory().createIndexDataflowHelper(
+        treeIndexOpHelper = (IndexDataflowHelper) opDesc.getIndexDataflowHelperFactory().createIndexDataflowHelper(
                 opDesc, ctx, partition);
         this.lowKeyInclusive = lowKeyInclusive;
         this.highKeyInclusive = highKeyInclusive;
@@ -91,11 +91,11 @@
 
         try {
             treeIndexOpHelper.open();
-            btree = (BTree) treeIndexOpHelper.getIndexInstance();
+            index = (ITreeIndex) treeIndexOpHelper.getIndexInstance();
             writer.open();
 
-            int lowKeySearchFields = btree.getComparatorFactories().length;
-            int highKeySearchFields = btree.getComparatorFactories().length;
+            int lowKeySearchFields = index.getComparatorFactories().length;
+            int highKeySearchFields = index.getComparatorFactories().length;
             if (lowKey != null)
                 lowKeySearchFields = lowKey.getFieldCount();
             if (highKey != null)
@@ -103,7 +103,7 @@
 
             IBinaryComparator[] lowKeySearchComparators = new IBinaryComparator[lowKeySearchFields];
             for (int i = 0; i < lowKeySearchFields; i++) {
-                lowKeySearchComparators[i] = btree.getComparatorFactories()[i].createBinaryComparator();
+                lowKeySearchComparators[i] = index.getComparatorFactories()[i].createBinaryComparator();
             }
             lowKeySearchCmp = new MultiComparator(lowKeySearchComparators);
 
@@ -112,7 +112,7 @@
             } else {
                 IBinaryComparator[] highKeySearchComparators = new IBinaryComparator[highKeySearchFields];
                 for (int i = 0; i < highKeySearchFields; i++) {
-                    highKeySearchComparators[i] = btree.getComparatorFactories()[i].createBinaryComparator();
+                    highKeySearchComparators[i] = index.getComparatorFactories()[i].createBinaryComparator();
                 }
                 highKeySearchCmp = new MultiComparator(highKeySearchComparators);
             }
@@ -120,11 +120,11 @@
             rangePred = new RangePredicate(null, null, lowKeyInclusive, highKeyInclusive, lowKeySearchCmp,
                     highKeySearchCmp);
             writeBuffer = treeIndexOpHelper.getTaskContext().allocateFrame();
-            tb = new ArrayTupleBuilder(inputRecDesc.getFields().length + btree.getFieldCount());
+            tb = new ArrayTupleBuilder(inputRecDesc.getFields().length + index.getFieldCount());
             dos = tb.getDataOutput();
             appender = new FrameTupleAppender(treeIndexOpHelper.getTaskContext().getFrameSize());
             appender.reset(writeBuffer, true);
-            indexAccessor = btree.createAccessor(NoOpOperationCallback.INSTANCE, NoOpOperationCallback.INSTANCE);
+            indexAccessor = index.createAccessor(NoOpOperationCallback.INSTANCE, NoOpOperationCallback.INSTANCE);
             setCursor();
         } catch (Exception e) {
             treeIndexOpHelper.close();
diff --git a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/IndexNestedLoopRightOuterJoinFunctionUpdateOperatorNodePushable.java b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/IndexNestedLoopRightOuterJoinFunctionUpdateOperatorNodePushable.java
index 80425a2..4ca7533 100644
--- a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/IndexNestedLoopRightOuterJoinFunctionUpdateOperatorNodePushable.java
+++ b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/IndexNestedLoopRightOuterJoinFunctionUpdateOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -30,15 +30,12 @@
 import edu.uci.ics.hyracks.dataflow.common.comm.io.FrameTupleAppender;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
 import edu.uci.ics.hyracks.dataflow.std.base.AbstractUnaryInputOperatorNodePushable;
-import edu.uci.ics.hyracks.storage.am.btree.api.IBTreeLeafFrame;
-import edu.uci.ics.hyracks.storage.am.btree.impls.BTree;
-import edu.uci.ics.hyracks.storage.am.btree.impls.BTreeRangeSearchCursor;
 import edu.uci.ics.hyracks.storage.am.btree.impls.RangePredicate;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexAccessor;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexCursor;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexFrame;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndexAccessor;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndexCursor;
+import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndex;
 import edu.uci.ics.hyracks.storage.am.common.dataflow.AbstractTreeIndexOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexDataflowHelper;
+import edu.uci.ics.hyracks.storage.am.common.dataflow.IndexDataflowHelper;
 import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallback;
 import edu.uci.ics.hyracks.storage.am.common.ophelpers.MultiComparator;
 import edu.uci.ics.hyracks.storage.am.common.tuples.PermutingFrameTupleReference;
@@ -52,7 +49,7 @@
 
 public class IndexNestedLoopRightOuterJoinFunctionUpdateOperatorNodePushable extends
         AbstractUnaryInputOperatorNodePushable {
-    private TreeIndexDataflowHelper treeIndexOpHelper;
+    private IndexDataflowHelper treeIndexOpHelper;
     private FrameTupleAccessor accessor;
 
     private ByteBuffer writeBuffer;
@@ -60,13 +57,12 @@
     private ArrayTupleBuilder nullTupleBuilder;
     private DataOutput dos;
 
-    private BTree btree;
+    private ITreeIndex index;
     private RangePredicate rangePred;
     private MultiComparator lowKeySearchCmp;
     private MultiComparator highKeySearchCmp;
-    private ITreeIndexCursor cursor;
-    private ITreeIndexFrame cursorFrame;
-    protected ITreeIndexAccessor indexAccessor;
+    private IIndexCursor cursor;
+    protected IIndexAccessor indexAccessor;
 
     private RecordDescriptor recDesc;
     private final RecordDescriptor inputRecDesc;
@@ -90,7 +86,7 @@
             IRuntimeHookFactory preHookFactory, IRuntimeHookFactory postHookFactory,
             IRecordDescriptorFactory inputRdFactory, int outputArity) throws HyracksDataException {
         inputRecDesc = recordDescProvider.getInputRecordDescriptor(opDesc.getActivityId(), 0);
-        treeIndexOpHelper = (TreeIndexDataflowHelper) opDesc.getIndexDataflowHelperFactory().createIndexDataflowHelper(
+        treeIndexOpHelper = (IndexDataflowHelper) opDesc.getIndexDataflowHelperFactory().createIndexDataflowHelper(
                 opDesc, ctx, partition);
         this.recDesc = recordDescProvider.getInputRecordDescriptor(opDesc.getActivityId(), 0);
 
@@ -111,7 +107,7 @@
     }
 
     protected void setCursor() {
-        cursor = new BTreeRangeSearchCursor((IBTreeLeafFrame) cursorFrame, true);
+        cursor = indexAccessor.createSearchCursor();
     }
 
     @Override
@@ -124,18 +120,16 @@
 
         try {
             treeIndexOpHelper.open();
-            btree = (BTree) treeIndexOpHelper.getIndexInstance();
-            cursorFrame = btree.getLeafFrameFactory().createFrame();
-            setCursor();
+            index = (ITreeIndex) treeIndexOpHelper.getIndexInstance();
 
             // construct range predicate
             // TODO: Can we construct the multicmps using helper methods?
-            int lowKeySearchFields = btree.getComparatorFactories().length;
-            int highKeySearchFields = btree.getComparatorFactories().length;
+            int lowKeySearchFields = index.getComparatorFactories().length;
+            int highKeySearchFields = index.getComparatorFactories().length;
 
             IBinaryComparator[] lowKeySearchComparators = new IBinaryComparator[lowKeySearchFields];
             for (int i = 0; i < lowKeySearchFields; i++) {
-                lowKeySearchComparators[i] = btree.getComparatorFactories()[i].createBinaryComparator();
+                lowKeySearchComparators[i] = index.getComparatorFactories()[i].createBinaryComparator();
             }
             lowKeySearchCmp = new MultiComparator(lowKeySearchComparators);
 
@@ -144,7 +138,7 @@
             } else {
                 IBinaryComparator[] highKeySearchComparators = new IBinaryComparator[highKeySearchFields];
                 for (int i = 0; i < highKeySearchFields; i++) {
-                    highKeySearchComparators[i] = btree.getComparatorFactories()[i].createBinaryComparator();
+                    highKeySearchComparators[i] = index.getComparatorFactories()[i].createBinaryComparator();
                 }
                 highKeySearchCmp = new MultiComparator(highKeySearchComparators);
             }
@@ -164,7 +158,8 @@
             appender = new FrameTupleAppender(treeIndexOpHelper.getTaskContext().getFrameSize());
             appender.reset(writeBuffer, true);
 
-            indexAccessor = btree.createAccessor(NoOpOperationCallback.INSTANCE, NoOpOperationCallback.INSTANCE);
+            indexAccessor = index.createAccessor(NoOpOperationCallback.INSTANCE, NoOpOperationCallback.INSTANCE);
+            setCursor();
 
             /** set the search cursor */
             rangePred.setLowKey(null, true);
@@ -179,8 +174,8 @@
                 match = false;
             }
 
-            cloneUpdateTb = new ArrayTupleBuilder(btree.getFieldCount());
-            updateBuffer.setFieldCount(btree.getFieldCount());
+            cloneUpdateTb = new ArrayTupleBuilder(index.getFieldCount());
+            updateBuffer.setFieldCount(index.getFieldCount());
         } catch (Exception e) {
             treeIndexOpHelper.close();
             throw new HyracksDataException(e);
@@ -239,7 +234,7 @@
             try {
                 cursor.close();
                 //batch update
-                updateBuffer.updateBTree(indexAccessor);
+                updateBuffer.updateIndex(indexAccessor);
             } catch (Exception e) {
                 throw new HyracksDataException(e);
             }
diff --git a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/IndexNestedLoopRightOuterJoinOperatorNodePushable.java b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/IndexNestedLoopRightOuterJoinOperatorNodePushable.java
index d7c5d1f..dd6ee3c 100644
--- a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/IndexNestedLoopRightOuterJoinOperatorNodePushable.java
+++ b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/IndexNestedLoopRightOuterJoinOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -30,22 +30,19 @@
 import edu.uci.ics.hyracks.dataflow.common.comm.util.FrameUtils;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
 import edu.uci.ics.hyracks.dataflow.std.base.AbstractUnaryInputUnaryOutputOperatorNodePushable;
-import edu.uci.ics.hyracks.storage.am.btree.api.IBTreeLeafFrame;
-import edu.uci.ics.hyracks.storage.am.btree.impls.BTree;
-import edu.uci.ics.hyracks.storage.am.btree.impls.BTreeRangeSearchCursor;
 import edu.uci.ics.hyracks.storage.am.btree.impls.RangePredicate;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexAccessor;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexCursor;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexFrame;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndexAccessor;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndexCursor;
+import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndex;
 import edu.uci.ics.hyracks.storage.am.common.dataflow.AbstractTreeIndexOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexDataflowHelper;
+import edu.uci.ics.hyracks.storage.am.common.dataflow.IndexDataflowHelper;
 import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallback;
 import edu.uci.ics.hyracks.storage.am.common.ophelpers.MultiComparator;
 import edu.uci.ics.hyracks.storage.am.common.tuples.PermutingFrameTupleReference;
 
 public class IndexNestedLoopRightOuterJoinOperatorNodePushable extends
         AbstractUnaryInputUnaryOutputOperatorNodePushable {
-    private TreeIndexDataflowHelper treeIndexOpHelper;
+    private IndexDataflowHelper treeIndexOpHelper;
     private FrameTupleAccessor accessor;
 
     private ByteBuffer writeBuffer;
@@ -53,14 +50,13 @@
     private ArrayTupleBuilder tb;
     private DataOutput dos;
 
-    private BTree btree;
+    private ITreeIndex index;
     private boolean isForward;
     private RangePredicate rangePred;
     private MultiComparator lowKeySearchCmp;
     private MultiComparator highKeySearchCmp;
-    private ITreeIndexCursor cursor;
-    private ITreeIndexFrame cursorFrame;
-    protected ITreeIndexAccessor indexAccessor;
+    private IIndexCursor cursor;
+    protected IIndexAccessor indexAccessor;
 
     private RecordDescriptor recDesc;
     private final RecordDescriptor inputRecDesc;
@@ -76,7 +72,7 @@
             IHyracksTaskContext ctx, int partition, IRecordDescriptorProvider recordDescProvider, boolean isForward,
             int[] lowKeyFields, int[] highKeyFields, INullWriter[] nullWriter) {
         inputRecDesc = recordDescProvider.getInputRecordDescriptor(opDesc.getActivityId(), 0);
-        treeIndexOpHelper = (TreeIndexDataflowHelper) opDesc.getIndexDataflowHelperFactory().createIndexDataflowHelper(
+        treeIndexOpHelper = (IndexDataflowHelper) opDesc.getIndexDataflowHelperFactory().createIndexDataflowHelper(
                 opDesc, ctx, partition);
         this.isForward = isForward;
         this.recDesc = recordDescProvider.getInputRecordDescriptor(opDesc.getActivityId(), 0);
@@ -93,7 +89,7 @@
     }
 
     protected void setCursor() {
-        cursor = new BTreeRangeSearchCursor((IBTreeLeafFrame) cursorFrame, false);
+        cursor = indexAccessor.createSearchCursor();
     }
 
     @Override
@@ -101,19 +97,17 @@
         accessor = new FrameTupleAccessor(treeIndexOpHelper.getTaskContext().getFrameSize(), recDesc);
         try {
             treeIndexOpHelper.open();
-            btree = (BTree) treeIndexOpHelper.getIndexInstance();
-            cursorFrame = btree.getLeafFrameFactory().createFrame();
-            setCursor();
+            index = (ITreeIndex) treeIndexOpHelper.getIndexInstance();
             writer.open();
 
             // construct range predicate
             // TODO: Can we construct the multicmps using helper methods?
-            int lowKeySearchFields = btree.getComparatorFactories().length;
-            int highKeySearchFields = btree.getComparatorFactories().length;
+            int lowKeySearchFields = index.getComparatorFactories().length;
+            int highKeySearchFields = index.getComparatorFactories().length;
 
             IBinaryComparator[] lowKeySearchComparators = new IBinaryComparator[lowKeySearchFields];
             for (int i = 0; i < lowKeySearchFields; i++) {
-                lowKeySearchComparators[i] = btree.getComparatorFactories()[i].createBinaryComparator();
+                lowKeySearchComparators[i] = index.getComparatorFactories()[i].createBinaryComparator();
             }
             lowKeySearchCmp = new MultiComparator(lowKeySearchComparators);
 
@@ -122,7 +116,7 @@
             } else {
                 IBinaryComparator[] highKeySearchComparators = new IBinaryComparator[highKeySearchFields];
                 for (int i = 0; i < highKeySearchFields; i++) {
-                    highKeySearchComparators[i] = btree.getComparatorFactories()[i].createBinaryComparator();
+                    highKeySearchComparators[i] = index.getComparatorFactories()[i].createBinaryComparator();
                 }
                 highKeySearchCmp = new MultiComparator(highKeySearchComparators);
 
@@ -131,12 +125,13 @@
             rangePred = new RangePredicate(null, null, true, true, lowKeySearchCmp, highKeySearchCmp);
 
             writeBuffer = treeIndexOpHelper.getTaskContext().allocateFrame();
-            tb = new ArrayTupleBuilder(inputRecDesc.getFields().length + btree.getFieldCount());
+            tb = new ArrayTupleBuilder(inputRecDesc.getFields().length + index.getFieldCount());
             dos = tb.getDataOutput();
             appender = new FrameTupleAppender(treeIndexOpHelper.getTaskContext().getFrameSize());
             appender.reset(writeBuffer, true);
 
-            indexAccessor = btree.createAccessor(NoOpOperationCallback.INSTANCE, NoOpOperationCallback.INSTANCE);
+            indexAccessor = index.createAccessor(NoOpOperationCallback.INSTANCE, NoOpOperationCallback.INSTANCE);
+            setCursor();
 
             /** set the search cursor */
             rangePred.setLowKey(null, true);
diff --git a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/IndexNestedLoopSetUnionFunctionUpdateOperatorNodePushable.java b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/IndexNestedLoopSetUnionFunctionUpdateOperatorNodePushable.java
index c9955c5..3cebfb8 100644
--- a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/IndexNestedLoopSetUnionFunctionUpdateOperatorNodePushable.java
+++ b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/IndexNestedLoopSetUnionFunctionUpdateOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -28,15 +28,12 @@
 import edu.uci.ics.hyracks.dataflow.common.comm.io.FrameTupleAppender;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
 import edu.uci.ics.hyracks.dataflow.std.base.AbstractUnaryInputOperatorNodePushable;
-import edu.uci.ics.hyracks.storage.am.btree.api.IBTreeLeafFrame;
-import edu.uci.ics.hyracks.storage.am.btree.impls.BTree;
-import edu.uci.ics.hyracks.storage.am.btree.impls.BTreeRangeSearchCursor;
 import edu.uci.ics.hyracks.storage.am.btree.impls.RangePredicate;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexAccessor;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexCursor;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexFrame;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndexAccessor;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndexCursor;
+import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndex;
 import edu.uci.ics.hyracks.storage.am.common.dataflow.AbstractTreeIndexOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexDataflowHelper;
+import edu.uci.ics.hyracks.storage.am.common.dataflow.IndexDataflowHelper;
 import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallback;
 import edu.uci.ics.hyracks.storage.am.common.ophelpers.MultiComparator;
 import edu.uci.ics.hyracks.storage.am.common.tuples.PermutingFrameTupleReference;
@@ -49,19 +46,18 @@
 import edu.uci.ics.pregelix.dataflow.util.UpdateBuffer;
 
 public class IndexNestedLoopSetUnionFunctionUpdateOperatorNodePushable extends AbstractUnaryInputOperatorNodePushable {
-    private TreeIndexDataflowHelper treeIndexOpHelper;
+    private IndexDataflowHelper treeIndexOpHelper;
     private FrameTupleAccessor accessor;
 
     private ByteBuffer writeBuffer;
     private FrameTupleAppender appender;
 
-    private BTree btree;
+    private ITreeIndex index;
     private boolean isForward;
     private RangePredicate rangePred;
     private MultiComparator lowKeySearchCmp;
-    private ITreeIndexCursor cursor;
-    private ITreeIndexFrame cursorFrame;
-    protected ITreeIndexAccessor indexAccessor;
+    private IIndexCursor cursor;
+    protected IIndexAccessor indexAccessor;
 
     private RecordDescriptor recDesc;
     private PermutingFrameTupleReference lowKey;
@@ -81,7 +77,7 @@
             int[] lowKeyFields, int[] highKeyFields, IUpdateFunctionFactory functionFactory,
             IRuntimeHookFactory preHookFactory, IRuntimeHookFactory postHookFactory,
             IRecordDescriptorFactory inputRdFactory, int outputArity) throws HyracksDataException {
-        treeIndexOpHelper = (TreeIndexDataflowHelper) opDesc.getIndexDataflowHelperFactory().createIndexDataflowHelper(
+        treeIndexOpHelper = (IndexDataflowHelper) opDesc.getIndexDataflowHelperFactory().createIndexDataflowHelper(
                 opDesc, ctx, partition);
         this.isForward = isForward;
         this.recDesc = recordDescProvider.getInputRecordDescriptor(opDesc.getActivityId(), 0);
@@ -102,7 +98,7 @@
     }
 
     protected void setCursor() {
-        cursor = new BTreeRangeSearchCursor((IBTreeLeafFrame) cursorFrame, true);
+        cursor = indexAccessor.createSearchCursor();
     }
 
     @Override
@@ -112,15 +108,13 @@
 
         try {
             treeIndexOpHelper.open();
-            btree = (BTree) treeIndexOpHelper.getIndexInstance();
-            cursorFrame = btree.getLeafFrameFactory().createFrame();
-            setCursor();
+            index = (ITreeIndex) treeIndexOpHelper.getIndexInstance();
 
             rangePred = new RangePredicate(null, null, true, true, null, null);
-            int lowKeySearchFields = btree.getComparatorFactories().length;
+            int lowKeySearchFields = index.getComparatorFactories().length;
             IBinaryComparator[] lowKeySearchComparators = new IBinaryComparator[lowKeySearchFields];
             for (int i = 0; i < lowKeySearchFields; i++) {
-                lowKeySearchComparators[i] = btree.getComparatorFactories()[i].createBinaryComparator();
+                lowKeySearchComparators[i] = index.getComparatorFactories()[i].createBinaryComparator();
             }
             lowKeySearchCmp = new MultiComparator(lowKeySearchComparators);
 
@@ -128,7 +122,8 @@
             appender = new FrameTupleAppender(treeIndexOpHelper.getTaskContext().getFrameSize());
             appender.reset(writeBuffer, true);
 
-            indexAccessor = btree.createAccessor(NoOpOperationCallback.INSTANCE, NoOpOperationCallback.INSTANCE);
+            indexAccessor = index.createAccessor(NoOpOperationCallback.INSTANCE, NoOpOperationCallback.INSTANCE);
+            setCursor();
 
             /** set the search cursor */
             rangePred.setLowKey(null, true);
@@ -142,8 +137,8 @@
                 currentTopTuple = cursor.getTuple();
                 match = false;
             }
-            cloneUpdateTb = new ArrayTupleBuilder(btree.getFieldCount());
-            updateBuffer.setFieldCount(btree.getFieldCount());
+            cloneUpdateTb = new ArrayTupleBuilder(index.getFieldCount());
+            updateBuffer.setFieldCount(index.getFieldCount());
         } catch (Exception e) {
             treeIndexOpHelper.close();
             throw new HyracksDataException(e);
@@ -210,7 +205,7 @@
                 cursor.close();
 
                 //batch update
-                updateBuffer.updateBTree(indexAccessor);
+                updateBuffer.updateIndex(indexAccessor);
             } catch (Exception e) {
                 throw new HyracksDataException(e);
             }
@@ -256,4 +251,4 @@
     public void setOutputFrameWriter(int index, IFrameWriter writer, RecordDescriptor recordDesc) {
         writers[index] = writer;
     }
-}
\ No newline at end of file
+}
diff --git a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/IndexNestedLoopSetUnionOperatorNodePushable.java b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/IndexNestedLoopSetUnionOperatorNodePushable.java
index 579935b..bbe2764 100644
--- a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/IndexNestedLoopSetUnionOperatorNodePushable.java
+++ b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/IndexNestedLoopSetUnionOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -29,21 +29,18 @@
 import edu.uci.ics.hyracks.dataflow.common.comm.util.FrameUtils;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
 import edu.uci.ics.hyracks.dataflow.std.base.AbstractUnaryInputUnaryOutputOperatorNodePushable;
-import edu.uci.ics.hyracks.storage.am.btree.api.IBTreeLeafFrame;
-import edu.uci.ics.hyracks.storage.am.btree.impls.BTree;
-import edu.uci.ics.hyracks.storage.am.btree.impls.BTreeRangeSearchCursor;
 import edu.uci.ics.hyracks.storage.am.btree.impls.RangePredicate;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexAccessor;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexCursor;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexFrame;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndexAccessor;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndexCursor;
+import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndex;
 import edu.uci.ics.hyracks.storage.am.common.dataflow.AbstractTreeIndexOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexDataflowHelper;
+import edu.uci.ics.hyracks.storage.am.common.dataflow.IndexDataflowHelper;
 import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallback;
 import edu.uci.ics.hyracks.storage.am.common.ophelpers.MultiComparator;
 import edu.uci.ics.hyracks.storage.am.common.tuples.PermutingFrameTupleReference;
 
 public class IndexNestedLoopSetUnionOperatorNodePushable extends AbstractUnaryInputUnaryOutputOperatorNodePushable {
-    private TreeIndexDataflowHelper treeIndexOpHelper;
+    private IndexDataflowHelper treeIndexOpHelper;
     private FrameTupleAccessor accessor;
 
     private ByteBuffer writeBuffer;
@@ -51,12 +48,11 @@
     private ArrayTupleBuilder tb;
     private DataOutput dos;
 
-    private BTree btree;
+    private ITreeIndex index;
     private RangePredicate rangePred;
     private MultiComparator lowKeySearchCmp;
-    private ITreeIndexCursor cursor;
-    private ITreeIndexFrame cursorFrame;
-    protected ITreeIndexAccessor indexAccessor;
+    private IIndexCursor cursor;
+    protected IIndexAccessor indexAccessor;
 
     private RecordDescriptor recDesc;
     private final RecordDescriptor inputRecDesc;
@@ -71,7 +67,7 @@
             IHyracksTaskContext ctx, int partition, IRecordDescriptorProvider recordDescProvider, boolean isForward,
             int[] lowKeyFields, int[] highKeyFields) {
         inputRecDesc = recordDescProvider.getInputRecordDescriptor(opDesc.getActivityId(), 0);
-        treeIndexOpHelper = (TreeIndexDataflowHelper) opDesc.getIndexDataflowHelperFactory().createIndexDataflowHelper(
+        treeIndexOpHelper = (IndexDataflowHelper) opDesc.getIndexDataflowHelperFactory().createIndexDataflowHelper(
                 opDesc, ctx, partition);
         this.recDesc = recordDescProvider.getInputRecordDescriptor(opDesc.getActivityId(), 0);
 
@@ -86,7 +82,7 @@
     }
 
     protected void setCursor() {
-        cursor = new BTreeRangeSearchCursor((IBTreeLeafFrame) cursorFrame, false);
+        cursor = indexAccessor.createSearchCursor();
     }
 
     @Override
@@ -95,26 +91,25 @@
 
         try {
             treeIndexOpHelper.open();
-            btree = (BTree) treeIndexOpHelper.getIndexInstance();
-            cursorFrame = btree.getLeafFrameFactory().createFrame();
-            setCursor();
+            index = (ITreeIndex) treeIndexOpHelper.getIndexInstance();
             writer.open();
 
             rangePred = new RangePredicate(null, null, true, true, null, null);
-            int lowKeySearchFields = btree.getComparatorFactories().length;
+            int lowKeySearchFields = index.getComparatorFactories().length;
             IBinaryComparator[] lowKeySearchComparators = new IBinaryComparator[lowKeySearchFields];
             for (int i = 0; i < lowKeySearchFields; i++) {
-                lowKeySearchComparators[i] = btree.getComparatorFactories()[i].createBinaryComparator();
+                lowKeySearchComparators[i] = index.getComparatorFactories()[i].createBinaryComparator();
             }
             lowKeySearchCmp = new MultiComparator(lowKeySearchComparators);
 
             writeBuffer = treeIndexOpHelper.getTaskContext().allocateFrame();
-            tb = new ArrayTupleBuilder(btree.getFieldCount());
+            tb = new ArrayTupleBuilder(index.getFieldCount());
             dos = tb.getDataOutput();
             appender = new FrameTupleAppender(treeIndexOpHelper.getTaskContext().getFrameSize());
             appender.reset(writeBuffer, true);
 
-            indexAccessor = btree.createAccessor(NoOpOperationCallback.INSTANCE, NoOpOperationCallback.INSTANCE);
+            indexAccessor = index.createAccessor(NoOpOperationCallback.INSTANCE, NoOpOperationCallback.INSTANCE);
+            setCursor();
 
             /** set the search cursor */
             rangePred.setLowKey(null, true);
diff --git a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/ProjectOperatorDescriptor.java b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/ProjectOperatorDescriptor.java
index 9f35e25..4bdde16 100644
--- a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/ProjectOperatorDescriptor.java
+++ b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/ProjectOperatorDescriptor.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/RuntimeHookOperatorDescriptor.java b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/RuntimeHookOperatorDescriptor.java
index 20f7aaa..1b76418 100644
--- a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/RuntimeHookOperatorDescriptor.java
+++ b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/RuntimeHookOperatorDescriptor.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/TreeIndexBulkReLoadOperatorDescriptor.java b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/TreeIndexBulkReLoadOperatorDescriptor.java
index eb5ece6..4dd78c3 100644
--- a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/TreeIndexBulkReLoadOperatorDescriptor.java
+++ b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/TreeIndexBulkReLoadOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -42,9 +42,9 @@
     public TreeIndexBulkReLoadOperatorDescriptor(JobSpecification spec, IStorageManagerInterface storageManager,
             IIndexLifecycleManagerProvider lcManagerProvider, IFileSplitProvider fileSplitProvider,
             ITypeTraits[] typeTraits, IBinaryComparatorFactory[] comparatorFactories, int[] fieldPermutation,
-            float fillFactor, IIndexDataflowHelperFactory opHelperFactory) {
+            int[] bloomFilterFields, float fillFactor, IIndexDataflowHelperFactory opHelperFactory) {
         super(spec, 1, 0, null, storageManager, lcManagerProvider, fileSplitProvider, typeTraits, comparatorFactories,
-                fieldPermutation, opHelperFactory, null, false, new TransientLocalResourceFactoryProvider(),
+                bloomFilterFields, opHelperFactory, null, false, new TransientLocalResourceFactoryProvider(),
                 NoOpOperationCallbackFactory.INSTANCE, NoOpOperationCallbackFactory.INSTANCE);
         this.fieldPermutation = fieldPermutation;
 
diff --git a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/TreeIndexBulkReLoadOperatorNodePushable.java b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/TreeIndexBulkReLoadOperatorNodePushable.java
index 5e089a5..c4890e1 100644
--- a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/TreeIndexBulkReLoadOperatorNodePushable.java
+++ b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/TreeIndexBulkReLoadOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -29,13 +29,13 @@
 import edu.uci.ics.hyracks.storage.am.common.api.IndexException;
 import edu.uci.ics.hyracks.storage.am.common.dataflow.AbstractTreeIndexOperatorDescriptor;
 import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndexOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexDataflowHelper;
+import edu.uci.ics.hyracks.storage.am.common.dataflow.IndexDataflowHelper;
 import edu.uci.ics.hyracks.storage.am.common.tuples.PermutingFrameTupleReference;
 import edu.uci.ics.hyracks.storage.common.IStorageManagerInterface;
 
 public class TreeIndexBulkReLoadOperatorNodePushable extends AbstractUnaryInputSinkOperatorNodePushable {
     private final float fillFactor;
-    private final TreeIndexDataflowHelper treeIndexOpHelper;
+    private final IndexDataflowHelper treeIndexOpHelper;
     private final IIndexOperatorDescriptor opDesc;
     private final IRecordDescriptorProvider recordDescProvider;
     private final PermutingFrameTupleReference tuple = new PermutingFrameTupleReference();
@@ -49,7 +49,7 @@
             IStorageManagerInterface storageManager, IIndexLifecycleManagerProvider lcManagerProvider,
             IFileSplitProvider fileSplitProvider) {
         this.fillFactor = fillFactor;
-        treeIndexOpHelper = (TreeIndexDataflowHelper) opDesc.getIndexDataflowHelperFactory().createIndexDataflowHelper(
+        treeIndexOpHelper = (IndexDataflowHelper) opDesc.getIndexDataflowHelperFactory().createIndexDataflowHelper(
                 opDesc, ctx, partition);
         this.opDesc = opDesc;
         this.recordDescProvider = recordDescProvider;
@@ -60,11 +60,12 @@
     public void open() throws HyracksDataException {
         RecordDescriptor recDesc = recordDescProvider.getInputRecordDescriptor(opDesc.getActivityId(), 0);
         accessor = new FrameTupleAccessor(treeIndexOpHelper.getTaskContext().getFrameSize(), recDesc);
+        treeIndexOpHelper.destroy();
         treeIndexOpHelper.create();
         treeIndexOpHelper.open();
         try {
             index = (ITreeIndex) treeIndexOpHelper.getIndexInstance();
-            bulkLoader = index.createBulkLoader(fillFactor, false, 0);
+            bulkLoader = index.createBulkLoader(fillFactor, false, 0, false);
         } catch (Exception e) {
             // cleanup in case of failure
             treeIndexOpHelper.close();
@@ -99,5 +100,6 @@
 
     @Override
     public void fail() throws HyracksDataException {
+
     }
 }
\ No newline at end of file
diff --git a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/BTreeSearchFunctionUpdateOperatorDescriptor.java b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/TreeSearchFunctionUpdateOperatorDescriptor.java
similarity index 92%
rename from pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/BTreeSearchFunctionUpdateOperatorDescriptor.java
rename to pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/TreeSearchFunctionUpdateOperatorDescriptor.java
index 43cf9a3..31496a9 100644
--- a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/BTreeSearchFunctionUpdateOperatorDescriptor.java
+++ b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/TreeSearchFunctionUpdateOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -34,7 +34,7 @@
 import edu.uci.ics.pregelix.dataflow.std.base.IRuntimeHookFactory;
 import edu.uci.ics.pregelix.dataflow.std.base.IUpdateFunctionFactory;
 
-public class BTreeSearchFunctionUpdateOperatorDescriptor extends AbstractTreeIndexOperatorDescriptor {
+public class TreeSearchFunctionUpdateOperatorDescriptor extends AbstractTreeIndexOperatorDescriptor {
 
     private static final long serialVersionUID = 1L;
 
@@ -53,7 +53,7 @@
 
     private final int outputArity;
 
-    public BTreeSearchFunctionUpdateOperatorDescriptor(JobSpecification spec, RecordDescriptor recDesc,
+    public TreeSearchFunctionUpdateOperatorDescriptor(JobSpecification spec, RecordDescriptor recDesc,
             IStorageManagerInterface storageManager, IIndexLifecycleManagerProvider lcManagerProvider,
             IFileSplitProvider fileSplitProvider, ITypeTraits[] typeTraits,
             IBinaryComparatorFactory[] comparatorFactories, boolean isForward, int[] lowKeyFields, int[] highKeyFields,
@@ -85,8 +85,8 @@
     @Override
     public IOperatorNodePushable createPushRuntime(final IHyracksTaskContext ctx,
             IRecordDescriptorProvider recordDescProvider, int partition, int nPartitions) throws HyracksDataException {
-        return new BTreeSearchFunctionUpdateOperatorNodePushable(this, ctx, partition, recordDescProvider, isForward,
+        return new TreeSearchFunctionUpdateOperatorNodePushable(this, ctx, partition, recordDescProvider, isForward,
                 lowKeyFields, highKeyFields, lowKeyInclusive, highKeyInclusive, functionFactory, preHookFactory,
                 postHookFactory, inputRdFactory, outputArity);
     }
-}
\ No newline at end of file
+}
diff --git a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/BTreeSearchFunctionUpdateOperatorNodePushable.java b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/TreeSearchFunctionUpdateOperatorNodePushable.java
similarity index 73%
rename from pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/BTreeSearchFunctionUpdateOperatorNodePushable.java
rename to pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/TreeSearchFunctionUpdateOperatorNodePushable.java
index 8fcc70e..bd85e3e 100644
--- a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/BTreeSearchFunctionUpdateOperatorNodePushable.java
+++ b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/std/TreeSearchFunctionUpdateOperatorNodePushable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -19,6 +19,7 @@
 
 import edu.uci.ics.hyracks.api.comm.IFrameWriter;
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator;
 import edu.uci.ics.hyracks.api.dataflow.value.IRecordDescriptorProvider;
 import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
@@ -27,16 +28,13 @@
 import edu.uci.ics.hyracks.dataflow.common.comm.io.FrameTupleAppender;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
 import edu.uci.ics.hyracks.dataflow.std.base.AbstractUnaryInputOperatorNodePushable;
-import edu.uci.ics.hyracks.storage.am.btree.api.IBTreeLeafFrame;
-import edu.uci.ics.hyracks.storage.am.btree.impls.BTree;
-import edu.uci.ics.hyracks.storage.am.btree.impls.BTreeRangeSearchCursor;
 import edu.uci.ics.hyracks.storage.am.btree.impls.RangePredicate;
-import edu.uci.ics.hyracks.storage.am.btree.util.BTreeUtils;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexAccessor;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexCursor;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndexAccessor;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndexCursor;
+import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndex;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexFrame;
 import edu.uci.ics.hyracks.storage.am.common.dataflow.AbstractTreeIndexOperatorDescriptor;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.TreeIndexDataflowHelper;
+import edu.uci.ics.hyracks.storage.am.common.dataflow.IndexDataflowHelper;
 import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallback;
 import edu.uci.ics.hyracks.storage.am.common.ophelpers.MultiComparator;
 import edu.uci.ics.hyracks.storage.am.common.tuples.PermutingFrameTupleReference;
@@ -48,8 +46,8 @@
 import edu.uci.ics.pregelix.dataflow.util.SearchKeyTupleReference;
 import edu.uci.ics.pregelix.dataflow.util.UpdateBuffer;
 
-public class BTreeSearchFunctionUpdateOperatorNodePushable extends AbstractUnaryInputOperatorNodePushable {
-    protected TreeIndexDataflowHelper treeIndexHelper;
+public class TreeSearchFunctionUpdateOperatorNodePushable extends AbstractUnaryInputOperatorNodePushable {
+    protected IndexDataflowHelper treeIndexHelper;
     protected FrameTupleAccessor accessor;
 
     protected ByteBuffer writeBuffer;
@@ -57,7 +55,7 @@
     protected ArrayTupleBuilder tb;
     protected DataOutput dos;
 
-    protected BTree btree;
+    protected ITreeIndex index;
     protected boolean isForward;
     protected PermutingFrameTupleReference lowKey;
     protected PermutingFrameTupleReference highKey;
@@ -66,9 +64,11 @@
     protected RangePredicate rangePred;
     protected MultiComparator lowKeySearchCmp;
     protected MultiComparator highKeySearchCmp;
-    protected ITreeIndexCursor cursor;
+    protected IIndexCursor cursor;
     protected ITreeIndexFrame cursorFrame;
-    protected ITreeIndexAccessor indexAccessor;
+    protected IIndexAccessor indexAccessor;
+    protected int[] lowKeyFields;
+    protected int[] highKeyFields;
 
     protected RecordDescriptor recDesc;
 
@@ -78,17 +78,19 @@
     private final UpdateBuffer updateBuffer;
     private final SearchKeyTupleReference tempTupleReference = new SearchKeyTupleReference();
 
-    public BTreeSearchFunctionUpdateOperatorNodePushable(AbstractTreeIndexOperatorDescriptor opDesc,
+    public TreeSearchFunctionUpdateOperatorNodePushable(AbstractTreeIndexOperatorDescriptor opDesc,
             IHyracksTaskContext ctx, int partition, IRecordDescriptorProvider recordDescProvider, boolean isForward,
             int[] lowKeyFields, int[] highKeyFields, boolean lowKeyInclusive, boolean highKeyInclusive,
             IUpdateFunctionFactory functionFactory, IRuntimeHookFactory preHookFactory,
             IRuntimeHookFactory postHookFactory, IRecordDescriptorFactory inputRdFactory, int outputArity)
             throws HyracksDataException {
-        treeIndexHelper = (TreeIndexDataflowHelper) opDesc.getIndexDataflowHelperFactory().createIndexDataflowHelper(
+        treeIndexHelper = (IndexDataflowHelper) opDesc.getIndexDataflowHelperFactory().createIndexDataflowHelper(
                 opDesc, ctx, partition);
         this.isForward = isForward;
         this.lowKeyInclusive = lowKeyInclusive;
         this.highKeyInclusive = highKeyInclusive;
+        this.lowKeyFields = lowKeyFields;
+        this.highKeyFields = highKeyFields;
         this.recDesc = recordDescProvider.getInputRecordDescriptor(opDesc.getActivityId(), 0);
         if (lowKeyFields != null && lowKeyFields.length > 0) {
             lowKey = new PermutingFrameTupleReference();
@@ -115,25 +117,46 @@
 
         try {
             treeIndexHelper.open();
-            btree = (BTree) treeIndexHelper.getIndexInstance();
-            cursorFrame = btree.getLeafFrameFactory().createFrame();
-            setCursor();
+            index = (ITreeIndex) treeIndexHelper.getIndexInstance();
+            cursorFrame = index.getLeafFrameFactory().createFrame();
 
             // Construct range predicate.
-            lowKeySearchCmp = BTreeUtils.getSearchMultiComparator(btree.getComparatorFactories(), lowKey);
-            highKeySearchCmp = BTreeUtils.getSearchMultiComparator(btree.getComparatorFactories(), highKey);
+            int lowKeySearchFields = index.getComparatorFactories().length;
+            int highKeySearchFields = index.getComparatorFactories().length;
+            if (lowKey != null)
+                lowKeySearchFields = lowKey.getFieldCount();
+            if (highKey != null)
+                highKeySearchFields = highKey.getFieldCount();
+
+            IBinaryComparator[] lowKeySearchComparators = new IBinaryComparator[lowKeySearchFields];
+            for (int i = 0; i < lowKeySearchFields; i++) {
+                lowKeySearchComparators[i] = index.getComparatorFactories()[i].createBinaryComparator();
+            }
+            lowKeySearchCmp = new MultiComparator(lowKeySearchComparators);
+
+            if (lowKeySearchFields == highKeySearchFields) {
+                highKeySearchCmp = lowKeySearchCmp;
+            } else {
+                IBinaryComparator[] highKeySearchComparators = new IBinaryComparator[highKeySearchFields];
+                for (int i = 0; i < highKeySearchFields; i++) {
+                    highKeySearchComparators[i] = index.getComparatorFactories()[i].createBinaryComparator();
+                }
+                highKeySearchCmp = new MultiComparator(highKeySearchComparators);
+            }
+
             rangePred = new RangePredicate(null, null, lowKeyInclusive, highKeyInclusive, lowKeySearchCmp,
                     highKeySearchCmp);
 
             writeBuffer = treeIndexHelper.getTaskContext().allocateFrame();
-            tb = new ArrayTupleBuilder(btree.getFieldCount());
+            tb = new ArrayTupleBuilder(index.getFieldCount());
             dos = tb.getDataOutput();
             appender = new FrameTupleAppender(treeIndexHelper.getTaskContext().getFrameSize());
             appender.reset(writeBuffer, true);
-            indexAccessor = btree.createAccessor(NoOpOperationCallback.INSTANCE, NoOpOperationCallback.INSTANCE);
+            indexAccessor = index.createAccessor(NoOpOperationCallback.INSTANCE, NoOpOperationCallback.INSTANCE);
+            setCursor();
 
-            cloneUpdateTb = new ArrayTupleBuilder(btree.getFieldCount());
-            updateBuffer.setFieldCount(btree.getFieldCount());
+            cloneUpdateTb = new ArrayTupleBuilder(index.getFieldCount());
+            updateBuffer.setFieldCount(index.getFieldCount());
         } catch (Exception e) {
             treeIndexHelper.close();
             throw new HyracksDataException(e);
@@ -141,7 +164,7 @@
     }
 
     protected void setCursor() {
-        cursor = new BTreeRangeSearchCursor((IBTreeLeafFrame) cursorFrame, false);
+        cursor = indexAccessor.createSearchCursor();
     }
 
     protected void writeSearchResults() throws Exception {
@@ -185,7 +208,7 @@
             try {
                 cursor.close();
                 //batch update
-                updateBuffer.updateBTree(indexAccessor);
+                updateBuffer.updateIndex(indexAccessor);
             } catch (Exception e) {
                 throw new HyracksDataException(e);
             }
@@ -210,4 +233,4 @@
         writers[index] = writer;
     }
 
-}
\ No newline at end of file
+}
diff --git a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/util/CopyUpdateUtil.java b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/util/CopyUpdateUtil.java
index 30df916..8709301 100644
--- a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/util/CopyUpdateUtil.java
+++ b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/util/CopyUpdateUtil.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -19,15 +19,15 @@
 import edu.uci.ics.hyracks.dataflow.common.comm.io.ArrayTupleBuilder;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
 import edu.uci.ics.hyracks.storage.am.btree.impls.RangePredicate;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexAccessor;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexCursor;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndexAccessor;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndexCursor;
 import edu.uci.ics.hyracks.storage.am.common.api.IndexException;
 
 public class CopyUpdateUtil {
 
     public static void copyUpdate(SearchKeyTupleReference tempTupleReference, ITupleReference frameTuple,
-            UpdateBuffer updateBuffer, ArrayTupleBuilder cloneUpdateTb, ITreeIndexAccessor indexAccessor,
-            ITreeIndexCursor cursor, RangePredicate rangePred) throws HyracksDataException, IndexException {
+            UpdateBuffer updateBuffer, ArrayTupleBuilder cloneUpdateTb, IIndexAccessor indexAccessor,
+            IIndexCursor cursor, RangePredicate rangePred) throws HyracksDataException, IndexException {
         if (cloneUpdateTb.getSize() > 0) {
             int[] fieldEndOffsets = cloneUpdateTb.getFieldEndOffsets();
             int srcStart = fieldEndOffsets[0];
@@ -46,7 +46,7 @@
                 //release the cursor/latch
                 cursor.close();
                 //batch update
-                updateBuffer.updateBTree(indexAccessor);
+                updateBuffer.updateIndex(indexAccessor);
                 //try append the to-be-updated tuple again
                 if (!updateBuffer.appendTuple(cloneUpdateTb)) {
                     throw new HyracksDataException("cannot append tuple builder!");
diff --git a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/util/FunctionProxy.java b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/util/FunctionProxy.java
index f75dab2..a1e5b86 100644
--- a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/util/FunctionProxy.java
+++ b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/util/FunctionProxy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/util/ResetableByteArrayInputStream.java b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/util/ResetableByteArrayInputStream.java
index b6fd98a..b697466 100644
--- a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/util/ResetableByteArrayInputStream.java
+++ b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/util/ResetableByteArrayInputStream.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/util/ResetableByteArrayOutputStream.java b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/util/ResetableByteArrayOutputStream.java
index 88521a4..a5a20de 100644
--- a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/util/ResetableByteArrayOutputStream.java
+++ b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/util/ResetableByteArrayOutputStream.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/util/SearchKeyTupleReference.java b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/util/SearchKeyTupleReference.java
index 86fa24a..fcefad7 100644
--- a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/util/SearchKeyTupleReference.java
+++ b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/util/SearchKeyTupleReference.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/util/TupleDeserializer.java b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/util/TupleDeserializer.java
index 4fe83db..150bd8b 100644
--- a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/util/TupleDeserializer.java
+++ b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/util/TupleDeserializer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/util/UpdateBuffer.java b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/util/UpdateBuffer.java
index 6783cf4..b2be366 100644
--- a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/util/UpdateBuffer.java
+++ b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/util/UpdateBuffer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -11,7 +11,7 @@
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
-*/
+ */
 
 package edu.uci.ics.pregelix.dataflow.util;
 
@@ -25,7 +25,7 @@
 import edu.uci.ics.hyracks.dataflow.common.comm.io.ArrayTupleBuilder;
 import edu.uci.ics.hyracks.dataflow.common.comm.io.FrameTupleAppender;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.FrameTupleReference;
-import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexAccessor;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndexAccessor;
 import edu.uci.ics.hyracks.storage.am.common.api.IndexException;
 
 /**
@@ -87,7 +87,7 @@
         }
     }
 
-    public void updateBTree(ITreeIndexAccessor bta) throws HyracksDataException, IndexException {
+    public void updateIndex(IIndexAccessor bta) throws HyracksDataException, IndexException {
         // batch update
         for (int i = 0; i <= currentInUse; i++) {
             ByteBuffer buffer = buffers.get(i);
diff --git a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/util/UpdateBufferTupleAccessor.java b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/util/UpdateBufferTupleAccessor.java
index 39f1361..f3315d1 100644
--- a/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/util/UpdateBufferTupleAccessor.java
+++ b/pregelix/pregelix-dataflow-std/src/main/java/edu/uci/ics/pregelix/dataflow/util/UpdateBufferTupleAccessor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-dataflow/pom.xml b/pregelix/pregelix-dataflow/pom.xml
index 4c0da76..2828451 100644
--- a/pregelix/pregelix-dataflow/pom.xml
+++ b/pregelix/pregelix-dataflow/pom.xml
@@ -1,4 +1,14 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<!-- ! Copyright 2009-2013 by The Regents of the University of California 
+	! Licensed under the Apache License, Version 2.0 (the "License"); ! you may 
+	not use this file except in compliance with the License. ! you may obtain 
+	a copy of the License from ! ! http://www.apache.org/licenses/LICENSE-2.0 
+	! ! Unless required by applicable law or agreed to in writing, software ! 
+	distributed under the License is distributed on an "AS IS" BASIS, ! WITHOUT 
+	WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. ! See the 
+	License for the specific language governing permissions and ! limitations 
+	under the License. ! -->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>pregelix-dataflow</artifactId>
 	<packaging>jar</packaging>
@@ -7,7 +17,7 @@
 	<parent>
 		<groupId>edu.uci.ics.hyracks</groupId>
 		<artifactId>pregelix</artifactId>
-		<version>0.2.6-SNAPSHOT</version>
+		<version>0.2.7-SNAPSHOT</version>
 	</parent>
 
 
@@ -74,68 +84,75 @@
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>pregelix-api</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>pregelix-dataflow-std-base</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-api</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-dataflow-common</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-data-std</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-storage-am-common</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-storage-am-btree</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
+			<type>jar</type>
+			<scope>compile</scope>
+		</dependency>
+		<dependency>
+			<groupId>edu.uci.ics.hyracks</groupId>
+			<artifactId>hyracks-storage-am-lsm-common</artifactId>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-control-cc</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-control-nc</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-ipc</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
diff --git a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/ConnectorPolicyAssignmentPolicy.java b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/ConnectorPolicyAssignmentPolicy.java
index ae47ed8..0a9d44d 100644
--- a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/ConnectorPolicyAssignmentPolicy.java
+++ b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/ConnectorPolicyAssignmentPolicy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/CountTupleOperatorDescriptor.java b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/CountTupleOperatorDescriptor.java
index 7ad6aa5..852c414 100644
--- a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/CountTupleOperatorDescriptor.java
+++ b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/CountTupleOperatorDescriptor.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/EmptySinkOperatorDescriptor.java b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/EmptySinkOperatorDescriptor.java
index fab7198..cfc0ecc 100644
--- a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/EmptySinkOperatorDescriptor.java
+++ b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/EmptySinkOperatorDescriptor.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/EmptyTupleSourceOperatorDescriptor.java b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/EmptyTupleSourceOperatorDescriptor.java
index 5276c82..984717c 100644
--- a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/EmptyTupleSourceOperatorDescriptor.java
+++ b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/EmptyTupleSourceOperatorDescriptor.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/FinalAggregateOperatorDescriptor.java b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/FinalAggregateOperatorDescriptor.java
index 71592ee..3fed609 100644
--- a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/FinalAggregateOperatorDescriptor.java
+++ b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/FinalAggregateOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/HDFSFileWriteOperatorDescriptor.java b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/HDFSFileWriteOperatorDescriptor.java
index 1d9c778..b74a5de 100644
--- a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/HDFSFileWriteOperatorDescriptor.java
+++ b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/HDFSFileWriteOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/MaterializingReadOperatorDescriptor.java b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/MaterializingReadOperatorDescriptor.java
index 65068bd..ca8f190 100644
--- a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/MaterializingReadOperatorDescriptor.java
+++ b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/MaterializingReadOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/MaterializingWriteOperatorDescriptor.java b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/MaterializingWriteOperatorDescriptor.java
index efe5f1b..48ed806 100644
--- a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/MaterializingWriteOperatorDescriptor.java
+++ b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/MaterializingWriteOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/NonCombinerConnectorPolicyAssignmentPolicy.java b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/NonCombinerConnectorPolicyAssignmentPolicy.java
index 8023fe5..3a07e34 100644
--- a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/NonCombinerConnectorPolicyAssignmentPolicy.java
+++ b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/NonCombinerConnectorPolicyAssignmentPolicy.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.pregelix.dataflow;
 
 import edu.uci.ics.hyracks.api.dataflow.IConnectorDescriptor;
diff --git a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/TerminationStateWriterOperatorDescriptor.java b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/TerminationStateWriterOperatorDescriptor.java
index f54d176..d442f5d 100644
--- a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/TerminationStateWriterOperatorDescriptor.java
+++ b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/TerminationStateWriterOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/VertexFileScanOperatorDescriptor.java b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/VertexFileScanOperatorDescriptor.java
index 343ba7e..b34879e 100644
--- a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/VertexFileScanOperatorDescriptor.java
+++ b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/VertexFileScanOperatorDescriptor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/VertexWriteOperatorDescriptor.java b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/VertexWriteOperatorDescriptor.java
index 5da0239..aed5405 100644
--- a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/VertexWriteOperatorDescriptor.java
+++ b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/VertexWriteOperatorDescriptor.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/base/IConfigurationFactory.java b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/base/IConfigurationFactory.java
index 2e58196..0f41568 100644
--- a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/base/IConfigurationFactory.java
+++ b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/base/IConfigurationFactory.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -25,4 +25,6 @@
 
     public Configuration createConfiguration(IHyracksTaskContext ctx) throws HyracksDataException;
 
+    public Configuration createConfiguration() throws HyracksDataException;
+
 }
diff --git a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/context/NoBudgetIndexLifecycleManager.java b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/context/NoBudgetIndexLifecycleManager.java
new file mode 100644
index 0000000..5484f78
--- /dev/null
+++ b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/context/NoBudgetIndexLifecycleManager.java
@@ -0,0 +1,194 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.pregelix.dataflow.context;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.api.lifecycle.ILifeCycleComponent;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndex;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndexLifecycleManager;
+
+public class NoBudgetIndexLifecycleManager implements IIndexLifecycleManager, ILifeCycleComponent {
+
+    private final Map<Long, IndexInfo> indexInfos;
+
+    public NoBudgetIndexLifecycleManager() {
+        this.indexInfos = new HashMap<Long, IndexInfo>();
+    }
+
+    @Override
+    public IIndex getIndex(long resourceID) {
+        IndexInfo info = indexInfos.get(resourceID);
+        return info == null ? null : info.index;
+    }
+
+    @Override
+    public void register(long resourceID, IIndex index) throws HyracksDataException {
+        if (indexInfos.containsKey(resourceID)) {
+            throw new HyracksDataException("Index with resource ID " + resourceID + " already exists.");
+        }
+
+        indexInfos.put(resourceID, new IndexInfo(index));
+    }
+
+    @Override
+    public void unregister(long resourceID) throws HyracksDataException {
+        IndexInfo info = indexInfos.remove(resourceID);
+        if (info == null) {
+            throw new HyracksDataException("Index with resource ID " + resourceID + " does not exist.");
+        }
+
+        if (info.referenceCount != 0) {
+            indexInfos.put(resourceID, info);
+            throw new HyracksDataException("Cannot remove index while it is open.");
+        }
+
+        if (info.isOpen) {
+            info.index.deactivate();
+        }
+    }
+
+    @Override
+    public void open(long resourceID) throws HyracksDataException {
+        IndexInfo info = indexInfos.get(resourceID);
+        if (info == null) {
+            throw new HyracksDataException("Failed to open index with resource ID " + resourceID
+                    + " since it does not exist.");
+        }
+
+        if (!info.isOpen) {
+            info.index.activate();
+            info.isOpen = true;
+        }
+        info.touch();
+    }
+
+    @Override
+    public void close(long resourceID) {
+        indexInfos.get(resourceID).untouch();
+    }
+
+    private class IndexInfo implements Comparable<IndexInfo> {
+        private final IIndex index;
+        private int referenceCount;
+        private long lastAccess;
+        private boolean isOpen;
+
+        public IndexInfo(IIndex index) {
+            this.index = index;
+            this.lastAccess = -1;
+            this.referenceCount = 0;
+            this.isOpen = false;
+        }
+
+        public void touch() {
+            lastAccess = System.currentTimeMillis();
+            referenceCount++;
+        }
+
+        public void untouch() {
+            lastAccess = System.currentTimeMillis();
+            referenceCount--;
+        }
+
+        @Override
+        public int compareTo(IndexInfo i) {
+            // sort by (isOpen, referenceCount, lastAccess) ascending, where
+            // true < false
+            //
+            // Example sort order:
+            // -------------------
+            // (F, 0, 70) <-- largest
+            // (F, 0, 60)
+            // (T, 10, 80)
+            // (T, 10, 70)
+            // (T, 9, 90)
+            // (T, 0, 100) <-- smallest
+            if (isOpen && !i.isOpen) {
+                return -1;
+            } else if (!isOpen && i.isOpen) {
+                return 1;
+            } else {
+                if (referenceCount < i.referenceCount) {
+                    return -1;
+                } else if (referenceCount > i.referenceCount) {
+                    return 1;
+                } else {
+                    if (lastAccess < i.lastAccess) {
+                        return -1;
+                    } else if (lastAccess > i.lastAccess) {
+                        return 1;
+                    } else {
+                        return 0;
+                    }
+                }
+            }
+
+        }
+
+        public String toString() {
+            return "{index: " + index + ", isOpen: " + isOpen + ", refCount: " + referenceCount + ", lastAccess: "
+                    + lastAccess + "}";
+        }
+    }
+
+    @Override
+    public List<IIndex> getOpenIndexes() {
+        List<IIndex> openIndexes = new ArrayList<IIndex>();
+        for (IndexInfo i : indexInfos.values()) {
+            if (i.isOpen) {
+                openIndexes.add(i.index);
+            }
+        }
+        return openIndexes;
+    }
+
+    @Override
+    public void start() {
+    }
+
+    @Override
+    public void stop(boolean dumpState, OutputStream outputStream) throws IOException {
+        if (dumpState) {
+            dumpState(outputStream);
+        }
+
+        for (IndexInfo i : indexInfos.values()) {
+            if (i.isOpen) {
+                i.index.deactivate();
+            }
+        }
+    }
+
+    private void dumpState(OutputStream os) throws IOException {
+        StringBuilder sb = new StringBuilder();
+
+        String headerFormat = "%-20s %-10s %-20s %-20s %-20s\n";
+        String rowFormat = "%-20d %-10b %-20d %-20s %-20s\n";
+        sb.append(String.format(headerFormat, "ResourceID", "Open", "Reference Count", "Last Access", "Index Name"));
+        IndexInfo ii;
+        for (Map.Entry<Long, IndexInfo> entry : indexInfos.entrySet()) {
+            ii = entry.getValue();
+            sb.append(String.format(rowFormat, entry.getKey(), ii.isOpen, ii.referenceCount, ii.lastAccess, ii.index));
+        }
+        os.write(sb.toString().getBytes());
+    }
+}
\ No newline at end of file
diff --git a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/context/PreDelayPageCleanerPolicy.java b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/context/PreDelayPageCleanerPolicy.java
index 2b07c81..72adfae 100644
--- a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/context/PreDelayPageCleanerPolicy.java
+++ b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/context/PreDelayPageCleanerPolicy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/context/RuntimeContext.java b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/context/RuntimeContext.java
index 8d6ab38..24a0a9e 100644
--- a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/context/RuntimeContext.java
+++ b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/context/RuntimeContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -19,6 +19,7 @@
 import java.util.Map;
 import java.util.Map.Entry;
 import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ThreadFactory;
 import java.util.logging.Logger;
 
 import edu.uci.ics.hyracks.api.application.INCApplicationContext;
@@ -29,7 +30,9 @@
 import edu.uci.ics.hyracks.api.io.IWorkspaceFileFactory;
 import edu.uci.ics.hyracks.control.nc.io.IOManager;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndexLifecycleManager;
-import edu.uci.ics.hyracks.storage.am.common.dataflow.IndexLifecycleManager;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
+import edu.uci.ics.hyracks.storage.am.lsm.common.impls.MultitenantVirtualBufferCache;
+import edu.uci.ics.hyracks.storage.am.lsm.common.impls.VirtualBufferCache;
 import edu.uci.ics.hyracks.storage.common.buffercache.BufferCache;
 import edu.uci.ics.hyracks.storage.common.buffercache.ClockPageReplacementStrategy;
 import edu.uci.ics.hyracks.storage.common.buffercache.HeapBufferAllocator;
@@ -51,12 +54,18 @@
     private final ILocalResourceRepository localResourceRepository;
     private final ResourceIdFactory resourceIdFactory;
     private final IBufferCache bufferCache;
+    private final IVirtualBufferCache vBufferCache;
     private final IFileMapManager fileMapManager;
     private final Map<StateKey, IStateObject> appStateMap = new ConcurrentHashMap<StateKey, IStateObject>();
     private final Map<String, Long> giraphJobIdToSuperStep = new ConcurrentHashMap<String, Long>();
     private final Map<String, Boolean> giraphJobIdToMove = new ConcurrentHashMap<String, Boolean>();
     private final IOManager ioManager;
     private final Map<Long, List<FileReference>> iterationToFiles = new ConcurrentHashMap<Long, List<FileReference>>();
+    private final ThreadFactory threadFactory = new ThreadFactory() {
+        public Thread newThread(Runnable r) {
+            return new Thread(r);
+        }
+    };
 
     public RuntimeContext(INCApplicationContext appCtx) {
         fileMapManager = new TransientFileMapManager();
@@ -68,14 +77,18 @@
         int numPages = (int) (bufferSize / pageSize);
         /** let the buffer cache never flush dirty pages */
         bufferCache = new BufferCache(appCtx.getRootContext().getIOManager(), allocator, prs,
-                new PreDelayPageCleanerPolicy(Long.MAX_VALUE), fileMapManager, pageSize, numPages, 1000000);
+                new PreDelayPageCleanerPolicy(Long.MAX_VALUE), fileMapManager, pageSize, numPages, 1000000,
+                threadFactory);
+        int numPagesInMemComponents = numPages / 4;
+        vBufferCache = new MultitenantVirtualBufferCache(new VirtualBufferCache(new HeapBufferAllocator(), pageSize,
+                numPagesInMemComponents));
         ioManager = (IOManager) appCtx.getRootContext().getIOManager();
-        lcManager = new IndexLifecycleManager();
+        lcManager = new NoBudgetIndexLifecycleManager();
         localResourceRepository = new TransientLocalResourceRepository();
         resourceIdFactory = new ResourceIdFactory(0);
     }
 
-    public void close() {
+    public void close() throws HyracksDataException {
         for (Entry<Long, List<FileReference>> entry : iterationToFiles.entrySet())
             for (FileReference fileRef : entry.getValue())
                 fileRef.delete();
@@ -103,6 +116,10 @@
         return bufferCache;
     }
 
+    public IVirtualBufferCache getVirtualBufferCache() {
+        return vBufferCache;
+    }
+
     public IFileMapProvider getFileMapManager() {
         return fileMapManager;
     }
diff --git a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/context/StateKey.java b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/context/StateKey.java
index ae58802..cbd90b9 100644
--- a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/context/StateKey.java
+++ b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/context/StateKey.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/state/MaterializerTaskState.java b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/state/MaterializerTaskState.java
index 117e9f0..817f5a7 100644
--- a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/state/MaterializerTaskState.java
+++ b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/state/MaterializerTaskState.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/util/IterationUtils.java b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/util/IterationUtils.java
index dd562ba..1d7c979 100644
--- a/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/util/IterationUtils.java
+++ b/pregelix/pregelix-dataflow/src/main/java/edu/uci/ics/pregelix/dataflow/util/IterationUtils.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-dist/pom.xml b/pregelix/pregelix-dist/pom.xml
index 0839966..a868ff2 100644
--- a/pregelix/pregelix-dist/pom.xml
+++ b/pregelix/pregelix-dist/pom.xml
@@ -1,10 +1,24 @@
 <?xml version="1.0"?>
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<groupId>edu.uci.ics.hyracks</groupId>
 		<artifactId>pregelix</artifactId>
-		<version>0.2.6-SNAPSHOT</version>
+		<version>0.2.7-SNAPSHOT</version>
 	</parent>
 	<artifactId>pregelix-dist</artifactId>
 	<name>pregelix-dist</name>
@@ -24,58 +38,35 @@
 				</configuration>
 			</plugin>
 			<plugin>
-				<artifactId>maven-resources-plugin</artifactId>
-				<version>2.5</version>
-				<executions>
-					<execution>
-						<id>copy-scripts</id>
-						<!-- here the phase you need -->
-						<phase>package</phase>
-						<goals>
-							<goal>copy-resources</goal>
-						</goals>
-						<configuration>
-							<outputDirectory>target/appassembler</outputDirectory>
-							<resources>
-								<resource>
-									<directory>../pregelix-core/target/appassembler</directory>
-								</resource>
-							</resources>
-						</configuration>
-					</execution>
-					<execution>
-						<id>copy-examples</id>
-						<phase>package</phase>
-						<goals>
-							<goal>copy-resources</goal>
-						</goals>
-						<configuration>
-							<outputDirectory>target/appassembler/examples</outputDirectory>
-							<resources>
-								<resource>
-									<directory>../pregelix-example/target</directory>
-									<includes>
-										<include>*.jar</include>
-									</includes>
-								</resource>
-							</resources>
-						</configuration>
-					</execution>
-				</executions>
-			</plugin>
+                                <artifactId>maven-assembly-plugin</artifactId>
+                                <version>2.2-beta-5</version>
+                                <executions>
+                                        <execution>
+                                                <configuration>
+                                                        <descriptors>
+                                                                <descriptor>src/main/assembly/binary-assembly.xml</descriptor>
+                                                        </descriptors>
+                                                </configuration>
+                                                <phase>package</phase>
+                                                <goals>
+                                                        <goal>attached</goal>
+                                                </goals>
+                                        </execution>
+                                </executions>
+                        </plugin>
 		</plugins>
 	</build>
 	<dependencies>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>pregelix-core</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>pregelix-example</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 		</dependency>
 	</dependencies>
 </project>
diff --git a/pregelix/pregelix-dist/src/main/assembly/binary-assembly.xml b/pregelix/pregelix-dist/src/main/assembly/binary-assembly.xml
new file mode 100644
index 0000000..ab46338
--- /dev/null
+++ b/pregelix/pregelix-dist/src/main/assembly/binary-assembly.xml
@@ -0,0 +1,55 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
+<assembly>
+	<id>binary-assembly</id>
+	<formats>
+		<format>zip</format>
+		<format>dir</format>
+	</formats>
+	<includeBaseDirectory>false</includeBaseDirectory>
+	<fileSets>
+		<fileSet>
+			<directory>src/main/resources/conf</directory>
+			<outputDirectory>conf</outputDirectory>
+			<fileMode>0755</fileMode>
+		</fileSet>
+		<fileSet>
+			<directory>src/main/resources/scripts</directory>
+			<outputDirectory>bin</outputDirectory>
+			<fileMode>0755</fileMode>
+		</fileSet>
+		<fileSet>
+                        <directory>../pregelix-core/target/appassembler/lib</directory>
+                        <outputDirectory>lib</outputDirectory>
+                         <includes>
+                                <include>*.jar</include>
+                        </includes>
+                        <fileMode>0755</fileMode>
+                </fileSet>
+		<fileSet>
+                        <directory>../pregelix-example/target</directory>
+                        <outputDirectory>examples</outputDirectory>
+                         <includes>
+        			<include>*with-dependencies.jar</include>
+      			</includes>
+			<fileMode>0755</fileMode>
+                </fileSet>
+		<fileSet>
+                        <directory>../pregelix-example/data</directory>
+                        <outputDirectory>data</outputDirectory>
+                        <fileMode>0755</fileMode>
+                </fileSet>
+	</fileSets>
+</assembly>
diff --git a/pregelix/pregelix-dist/src/main/resources/conf/cluster.properties b/pregelix/pregelix-dist/src/main/resources/conf/cluster.properties
new file mode 100644
index 0000000..f5d12a1
--- /dev/null
+++ b/pregelix/pregelix-dist/src/main/resources/conf/cluster.properties
@@ -0,0 +1,50 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
+#The CC port for Hyracks clients
+CC_CLIENTPORT=3099
+
+#The CC port for Hyracks cluster management
+CC_CLUSTERPORT=1099
+
+#The tmp directory for cc to install jars
+CCTMP_DIR=/tmp/t1
+
+#The tmp directory for nc to install jars
+NCTMP_DIR=/tmp/t2
+
+#The directory to put cc logs
+CCLOGS_DIR=$CCTMP_DIR/logs
+
+#The directory to put nc logs
+NCLOGS_DIR=$NCTMP_DIR/logs
+
+#Comma separated I/O directories for the spilling of external sort
+IO_DIRS="/tmp/t3,/tmp/t4"
+
+#The JAVA_HOME
+JAVA_HOME=$JAVA_HOME
+
+#The frame size of the internal dataflow engine
+FRAME_SIZE=65536
+
+#CC JAVA_OPTS
+CCJAVA_OPTS="-Xmx1g -Djava.util.logging.config.file=logging.properties"
+# debug option: CCJAVA_OPTS="-Xdebug -Xrunjdwp:transport=dt_socket,address=7001,server=y,suspend=n -Xmx1g -Djava.util.logging.config.file=logging.properties"
+# Yourkit option: -agentpath:/grid/0/dev/vborkar/tools/yjp-10.0.4/bin/linux-x86-64/libyjpagent.so=port=20001"
+
+#NC JAVA_OPTS
+NCJAVA_OPTS="-Xmx1g -Djava.util.logging.config.file=logging.properties"
+# debug option: NCJAVA_OPTS="-Xdebug -Xrunjdwp:transport=dt_socket,address=7002,server=y,suspend=n -Xmx1g -Djava.util.logging.config.file=logging.properties"
+# Yourkit option: -agentpath:/grid/0/dev/vborkar/tools/yjp-10.0.4/bin/linux-x86-64/libyjpagent.so=port=20001"
diff --git a/pregelix/pregelix-dist/src/main/resources/conf/debugnc.properties b/pregelix/pregelix-dist/src/main/resources/conf/debugnc.properties
new file mode 100644
index 0000000..23e04c6
--- /dev/null
+++ b/pregelix/pregelix-dist/src/main/resources/conf/debugnc.properties
@@ -0,0 +1,26 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
+#The tmp directory for nc to install jars
+NCTMP_DIR2=/tmp/t-1
+
+#The directory to put nc logs
+NCLOGS_DIR2=$NCTMP_DIR/logs
+
+#Comma separated I/O directories for the spilling of external sort
+IO_DIRS2="/tmp/t-2,/tmp/t-3"
+
+#NC JAVA_OPTS
+NCJAVA_OPTS2="-Xdebug -Xrunjdwp:transport=dt_socket,address=7003,server=y,suspend=n -Xmx1g -Djava.util.logging.config.file=logging.properties"
+
diff --git a/pregelix/pregelix-dist/src/main/resources/conf/master b/pregelix/pregelix-dist/src/main/resources/conf/master
new file mode 100644
index 0000000..2fbb50c
--- /dev/null
+++ b/pregelix/pregelix-dist/src/main/resources/conf/master
@@ -0,0 +1 @@
+localhost
diff --git a/pregelix/pregelix-dist/src/main/resources/conf/slaves b/pregelix/pregelix-dist/src/main/resources/conf/slaves
new file mode 100644
index 0000000..2fbb50c
--- /dev/null
+++ b/pregelix/pregelix-dist/src/main/resources/conf/slaves
@@ -0,0 +1 @@
+localhost
diff --git a/pregelix/pregelix-dist/src/main/resources/conf/stores.properties b/pregelix/pregelix-dist/src/main/resources/conf/stores.properties
new file mode 100644
index 0000000..9705f5d
--- /dev/null
+++ b/pregelix/pregelix-dist/src/main/resources/conf/stores.properties
@@ -0,0 +1,16 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
+#Comma separated directories for storing the partitioned graph on each machine
+store=/tmp/teststore1,/tmp/teststore2
\ No newline at end of file
diff --git a/pregelix/pregelix-dist/src/main/resources/conf/topology-template.xml b/pregelix/pregelix-dist/src/main/resources/conf/topology-template.xml
new file mode 100644
index 0000000..2d64b15
--- /dev/null
+++ b/pregelix/pregelix-dist/src/main/resources/conf/topology-template.xml
@@ -0,0 +1,21 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
+<cluster-topology>
+    <network-switch name="Global">
+        <network-switch name="local">
+            <terminal name="127.0.0.1"/>
+        </network-switch>
+    </network-switch>
+</cluster-topology>
\ No newline at end of file
diff --git a/pregelix/pregelix-dist/src/main/resources/scripts/getip.sh b/pregelix/pregelix-dist/src/main/resources/scripts/getip.sh
new file mode 100644
index 0000000..d11b091
--- /dev/null
+++ b/pregelix/pregelix-dist/src/main/resources/scripts/getip.sh
@@ -0,0 +1,57 @@
+#!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
+#
+#------------------------------------------------------------------------
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ------------------------------------------------------------------------
+#
+
+#get the OS
+OS_NAME=`uname -a|awk '{print $1}'`
+LINUX_OS='Linux'
+
+if [ $OS_NAME = $LINUX_OS ];
+then
+        #Get IP Address
+        IPADDR=`/sbin/ifconfig eth0 | grep "inet " | awk '{print $2}' | cut -f 2 -d ':'`
+    	if [ "$IPADDR" = "" ]
+        then
+		IPADDR=`/sbin/ifconfig em1 | grep "inet " | awk '{print $2}' | cut -f 2 -d ':'`
+        fi 
+	if [ "$IPADDR" = "" ]
+        then
+		IPADDR=`/sbin/ifconfig lo | grep "inet " | awk '{print $2}' | cut -f 2 -d ':'`
+        fi 
+else
+        IPADDR=`/sbin/ifconfig en1 | grep "inet " | awk '{print $2}' | cut -f 2 -d ':'`
+	if [ "$IPADDR" = "" ]
+        then
+                IPADDR=`/sbin/ifconfig lo0 | grep "inet " | awk '{print $2}' | cut -f 2 -d ':'`
+        fi
+
+fi
+echo $IPADDR
diff --git a/pregelix/pregelix-dist/src/main/resources/scripts/pregelix b/pregelix/pregelix-dist/src/main/resources/scripts/pregelix
new file mode 100644
index 0000000..7232ccc
--- /dev/null
+++ b/pregelix/pregelix-dist/src/main/resources/scripts/pregelix
@@ -0,0 +1,111 @@
+#!/bin/sh
+#
+#------------------------------------------------------------------------
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ------------------------------------------------------------------------
+#
+
+
+# resolve links - $0 may be a softlink
+PRG="$0"
+
+while [ -h "$PRG" ]; do
+  ls=`ls -ld "$PRG"`
+  link=`expr "$ls" : '.*-> \(.*\)$'`
+  if expr "$link" : '/.*' > /dev/null; then
+    PRG="$link"
+  else
+    PRG=`dirname "$PRG"`/"$link"
+  fi
+done
+
+PRGDIR=`dirname "$PRG"`
+BASEDIR=`cd "$PRGDIR/.." >/dev/null; pwd`
+
+
+
+# OS specific support.  $var _must_ be set to either true or false.
+cygwin=false;
+darwin=false;
+case "`uname`" in
+  CYGWIN*) cygwin=true ;;
+  Darwin*) darwin=true
+           if [ -z "$JAVA_VERSION" ] ; then
+             JAVA_VERSION="CurrentJDK"
+           else
+             echo "Using Java version: $JAVA_VERSION"
+           fi
+           if [ -z "$JAVA_HOME" ] ; then
+             JAVA_HOME=/System/Library/Frameworks/JavaVM.framework/Versions/${JAVA_VERSION}/Home
+           fi
+           ;;
+esac
+
+if [ -z "$JAVA_HOME" ] ; then
+  if [ -r /etc/gentoo-release ] ; then
+    JAVA_HOME=`java-config --jre-home`
+  fi
+fi
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched
+if $cygwin ; then
+  [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+  [ -n "$CLASSPATH" ] && CLASSPATH=`cygpath --path --unix "$CLASSPATH"`
+fi
+
+# If a specific java binary isn't specified search for the standard 'java' binary
+if [ -z "$JAVACMD" ] ; then
+  if [ -n "$JAVA_HOME"  ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+      # IBM's JDK on AIX uses strange locations for the executables
+      JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+      JAVACMD="$JAVA_HOME/bin/java"
+    fi
+  else
+    JAVACMD=`which java`
+  fi
+fi
+
+if [ ! -x "$JAVACMD" ] ; then
+  echo "Error: JAVA_HOME is not defined correctly." 1>&2
+  echo "  We cannot execute $JAVACMD" 1>&2
+  exit 1
+fi
+
+if [ -z "$REPO" ]
+then
+  REPO="$BASEDIR"/lib
+fi
+
+CLASSPATH=$CLASSPATH_PREFIX:"$HADOOP_HOME"/conf:/etc/hadoop/conf:"$BASEDIR"/etc:$1
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin; then
+  [ -n "$CLASSPATH" ] && CLASSPATH=`cygpath --path --windows "$CLASSPATH"`
+  [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"`
+  [ -n "$HOME" ] && HOME=`cygpath --path --windows "$HOME"`
+  [ -n "$BASEDIR" ] && BASEDIR=`cygpath --path --windows "$BASEDIR"`
+  [ -n "$REPO" ] && REPO=`cygpath --path --windows "$REPO"`
+fi
+
+exec "$JAVACMD" $JAVA_OPTS  \
+  -classpath "$CLASSPATH" \
+  -Dapp.name="pregelix" \
+  -Dapp.pid="$$" \
+  -Dapp.repo="$REPO" \
+  -Dapp.home="$BASEDIR" \
+  -Dbasedir="$BASEDIR" \
+  org.apache.hadoop.util.RunJar \
+  "$@"
diff --git a/pregelix/pregelix-dist/src/main/resources/scripts/pregelix.bat b/pregelix/pregelix-dist/src/main/resources/scripts/pregelix.bat
new file mode 100644
index 0000000..fe53029
--- /dev/null
+++ b/pregelix/pregelix-dist/src/main/resources/scripts/pregelix.bat
@@ -0,0 +1,124 @@
+@rem /*
+@rem Copyright 2009-2013 by The Regents of the University of California
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem you may obtain a copy of the License from
+@rem 
+@rem     http://www.apache.org/licenses/LICENSE-2.0
+@rem 
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem */
+@REM ----------------------------------------------------------------------------
+@REM  Copyright 2001-2006 The Apache Software Foundation.
+@REM
+@REM  Licensed under the Apache License, Version 2.0 (the "License");
+@REM  you may not use this file except in compliance with the License.
+@REM  You may obtain a copy of the License at
+@REM
+@REM       http://www.apache.org/licenses/LICENSE-2.0
+@REM
+@REM  Unless required by applicable law or agreed to in writing, software
+@REM  distributed under the License is distributed on an "AS IS" BASIS,
+@REM  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@REM  See the License for the specific language governing permissions and
+@REM  limitations under the License.
+@REM ----------------------------------------------------------------------------
+@REM
+@REM   Copyright (c) 2001-2006 The Apache Software Foundation.  All rights
+@REM   reserved.
+
+@echo off
+
+set ERROR_CODE=0
+
+:init
+@REM Decide how to startup depending on the version of windows
+
+@REM -- Win98ME
+if NOT "%OS%"=="Windows_NT" goto Win9xArg
+
+@REM set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" @setlocal
+
+@REM -- 4NT shell
+if "%eval[2+2]" == "4" goto 4NTArgs
+
+@REM -- Regular WinNT shell
+set CMD_LINE_ARGS=%*
+goto WinNTGetScriptDir
+
+@REM The 4NT Shell from jp software
+:4NTArgs
+set CMD_LINE_ARGS=%$
+goto WinNTGetScriptDir
+
+:Win9xArg
+@REM Slurp the command line arguments.  This loop allows for an unlimited number
+@REM of arguments (up to the command line limit, anyway).
+set CMD_LINE_ARGS=
+:Win9xApp
+if %1a==a goto Win9xGetScriptDir
+set CMD_LINE_ARGS=%CMD_LINE_ARGS% %1
+shift
+goto Win9xApp
+
+:Win9xGetScriptDir
+set SAVEDIR=%CD%
+%0\
+cd %0\..\.. 
+set BASEDIR=%CD%
+cd %SAVEDIR%
+set SAVE_DIR=
+goto repoSetup
+
+:WinNTGetScriptDir
+set BASEDIR=%~dp0\..
+
+:repoSetup
+
+
+if "%JAVACMD%"=="" set JAVACMD=java
+
+if "%REPO%"=="" set REPO=%BASEDIR%\lib
+
+cp $BASEDIR"\..\a-hadoop-patch.jar "$REPO"\
+
+set CLASSPATH="%BASEDIR%"\etc;"%REPO%"\a-hadoop-patch.jar;"%REPO%"\pregelix-api-0.0.1-SNAPSHOT.jar;"%REPO%"\hyracks-dataflow-common-0.2.2-SNAPSHOT.jar;"%REPO%"\hyracks-api-0.2.2-SNAPSHOT.jar;"%REPO%"\json-20090211.jar;"%REPO%"\httpclient-4.1-alpha2.jar;"%REPO%"\httpcore-4.1-beta1.jar;"%REPO%"\commons-logging-1.1.1.jar;"%REPO%"\commons-codec-1.3.jar;"%REPO%"\args4j-2.0.12.jar;"%REPO%"\hyracks-ipc-0.2.2-SNAPSHOT.jar;"%REPO%"\commons-lang3-3.1.jar;"%REPO%"\hyracks-data-std-0.2.2-SNAPSHOT.jar;"%REPO%"\hadoop-core-0.20.2.jar;"%REPO%"\commons-cli-1.2.jar;"%REPO%"\xmlenc-0.52.jar;"%REPO%"\commons-httpclient-3.0.1.jar;"%REPO%"\commons-net-1.4.1.jar;"%REPO%"\oro-2.0.8.jar;"%REPO%"\jetty-6.1.14.jar;"%REPO%"\jetty-util-6.1.14.jar;"%REPO%"\servlet-api-2.5-6.1.14.jar;"%REPO%"\jasper-runtime-5.5.12.jar;"%REPO%"\jasper-compiler-5.5.12.jar;"%REPO%"\jsp-api-2.1-6.1.14.jar;"%REPO%"\jsp-2.1-6.1.14.jar;"%REPO%"\core-3.1.1.jar;"%REPO%"\ant-1.6.5.jar;"%REPO%"\commons-el-1.0.jar;"%REPO%"\jets3t-0.7.1.jar;"%REPO%"\kfs-0.3.jar;"%REPO%"\hsqldb-1.8.0.10.jar;"%REPO%"\pregelix-dataflow-std-0.0.1-SNAPSHOT.jar;"%REPO%"\pregelix-dataflow-std-base-0.0.1-SNAPSHOT.jar;"%REPO%"\hyracks-dataflow-std-0.2.2-SNAPSHOT.jar;"%REPO%"\hyracks-dataflow-hadoop-0.2.2-SNAPSHOT.jar;"%REPO%"\dcache-client-0.0.1.jar;"%REPO%"\jetty-client-8.0.0.M0.jar;"%REPO%"\jetty-http-8.0.0.RC0.jar;"%REPO%"\jetty-io-8.0.0.RC0.jar;"%REPO%"\jetty-util-8.0.0.RC0.jar;"%REPO%"\hyracks-storage-am-common-0.2.2-SNAPSHOT.jar;"%REPO%"\hyracks-storage-common-0.2.2-SNAPSHOT.jar;"%REPO%"\hyracks-storage-am-btree-0.2.2-SNAPSHOT.jar;"%REPO%"\btreehelper-0.2.2-SNAPSHOT.jar;"%REPO%"\hyracks-control-cc-0.2.2-SNAPSHOT.jar;"%REPO%"\hyracks-control-common-0.2.2-SNAPSHOT.jar;"%REPO%"\commons-io-1.3.1.jar;"%REPO%"\jetty-server-8.0.0.RC0.jar;"%REPO%"\servlet-api-3.0.20100224.jar;"%REPO%"\jetty-continuation-8.0.0.RC0.jar;"%REPO%"\jetty-webapp-8.0.0.RC0.jar;"%REPO%"\jetty-xml-8.0.0.RC0.jar;"%REPO%"\jetty-servlet-8.0.0.RC0.jar;"%REPO%"\jetty-security-8.0.0.RC0.jar;"%REPO%"\wicket-core-1.5.2.jar;"%REPO%"\wicket-util-1.5.2.jar;"%REPO%"\slf4j-api-1.6.1.jar;"%REPO%"\wicket-request-1.5.2.jar;"%REPO%"\slf4j-jcl-1.6.3.jar;"%REPO%"\hyracks-control-nc-0.2.2-SNAPSHOT.jar;"%REPO%"\hyracks-net-0.2.2-SNAPSHOT.jar;"%REPO%"\hyracks-hadoop-compat-0.2.2-SNAPSHOT.jar;"%REPO%"\pregelix-dataflow-0.0.1-SNAPSHOT.jar;"%REPO%"\pregelix-runtime-0.0.1-SNAPSHOT.jar;"%REPO%"\hadoop-test-0.20.2.jar;"%REPO%"\ftplet-api-1.0.0.jar;"%REPO%"\mina-core-2.0.0-M5.jar;"%REPO%"\ftpserver-core-1.0.0.jar;"%REPO%"\ftpserver-deprecated-1.0.0-M2.jar;"%REPO%"\javax.servlet-api-3.0.1.jar;"%REPO%"\pregelix-core-0.0.1-SNAPSHOT.jar
+goto endInit
+
+@REM Reaching here means variables are defined and arguments have been captured
+:endInit
+
+%JAVACMD% %JAVA_OPTS%  -classpath %CLASSPATH_PREFIX%;%CLASSPATH% -Dapp.name="pregelix" -Dapp.repo="%REPO%" -Dapp.home="%BASEDIR%" -Dbasedir="%BASEDIR%" org.apache.hadoop.util.RunJar %CMD_LINE_ARGS%
+if ERRORLEVEL 1 goto error
+goto end
+
+:error
+if "%OS%"=="Windows_NT" @endlocal
+set ERROR_CODE=%ERRORLEVEL%
+
+:end
+@REM set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" goto endNT
+
+@REM For old DOS remove the set variables from ENV - we assume they were not set
+@REM before we started - at least we don't leave any baggage around
+set CMD_LINE_ARGS=
+goto postExec
+
+:endNT
+@REM If error code is set to 1 then the endlocal was done already in :error.
+if %ERROR_CODE% EQU 0 @endlocal
+
+
+:postExec
+
+if "%FORCE_EXIT_ON_ERROR%" == "on" (
+  if %ERROR_CODE% NEQ 0 exit %ERROR_CODE%
+)
+
+exit /B %ERROR_CODE%
\ No newline at end of file
diff --git a/pregelix/pregelix-dist/src/main/resources/scripts/pregelixcc b/pregelix/pregelix-dist/src/main/resources/scripts/pregelixcc
new file mode 100644
index 0000000..c1ee3f2
--- /dev/null
+++ b/pregelix/pregelix-dist/src/main/resources/scripts/pregelixcc
@@ -0,0 +1,114 @@
+#!/bin/sh
+#
+#------------------------------------------------------------------------
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ------------------------------------------------------------------------
+#
+
+# resolve links - $0 may be a softlink
+PRG="$0"
+
+while [ -h "$PRG" ]; do
+  ls=`ls -ld "$PRG"`
+  link=`expr "$ls" : '.*-> \(.*\)$'`
+  if expr "$link" : '/.*' > /dev/null; then
+    PRG="$link"
+  else
+    PRG=`dirname "$PRG"`/"$link"
+  fi
+done
+
+PRGDIR=`dirname "$PRG"`
+BASEDIR=`cd "$PRGDIR/.." >/dev/null; pwd`
+
+
+
+# OS specific support.  $var _must_ be set to either true or false.
+cygwin=false;
+darwin=false;
+case "`uname`" in
+  CYGWIN*) cygwin=true ;;
+  Darwin*) darwin=true
+           if [ -z "$JAVA_VERSION" ] ; then
+             JAVA_VERSION="CurrentJDK"
+           else
+             echo "Using Java version: $JAVA_VERSION"
+           fi
+           if [ -z "$JAVA_HOME" ] ; then
+             JAVA_HOME=/System/Library/Frameworks/JavaVM.framework/Versions/${JAVA_VERSION}/Home
+           fi
+           ;;
+esac
+
+if [ -z "$JAVA_HOME" ] ; then
+  if [ -r /etc/gentoo-release ] ; then
+    JAVA_HOME=`java-config --jre-home`
+  fi
+fi
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched
+if $cygwin ; then
+  [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+  [ -n "$CLASSPATH" ] && CLASSPATH=`cygpath --path --unix "$CLASSPATH"`
+fi
+
+# If a specific java binary isn't specified search for the standard 'java' binary
+if [ -z "$JAVACMD" ] ; then
+  if [ -n "$JAVA_HOME"  ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+      # IBM's JDK on AIX uses strange locations for the executables
+      JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+      JAVACMD="$JAVA_HOME/bin/java"
+    fi
+  else
+    JAVACMD=`which java`
+  fi
+fi
+
+if [ ! -x "$JAVACMD" ] ; then
+  echo "Error: JAVA_HOME is not defined correctly." 1>&2
+  echo "  We cannot execute $JAVACMD" 1>&2
+  exit 1
+fi
+
+if [ -z "$REPO" ]
+then
+  REPO="$BASEDIR"/lib
+fi
+
+CLASSPATH=$CLASSPATH_PREFIX:"$HADOOP_HOME"/conf:/etc/hadoop/conf:"$BASEDIR"/etc:$1
+
+for f in ${REPO}/*.jar; do
+  CLASSPATH=${CLASSPATH}:$f;
+done
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin; then
+  [ -n "$CLASSPATH" ] && CLASSPATH=`cygpath --path --windows "$CLASSPATH"`
+  [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"`
+  [ -n "$HOME" ] && HOME=`cygpath --path --windows "$HOME"`
+  [ -n "$BASEDIR" ] && BASEDIR=`cygpath --path --windows "$BASEDIR"`
+  [ -n "$REPO" ] && REPO=`cygpath --path --windows "$REPO"`
+fi
+
+exec "$JAVACMD" $JAVA_OPTS  \
+  -classpath "$CLASSPATH" \
+  -Dapp.name="pregelixcc" \
+  -Dapp.pid="$$" \
+  -Dapp.repo="$REPO" \
+  -Dapp.home="$BASEDIR" \
+  -Dbasedir="$BASEDIR" \
+  edu.uci.ics.hyracks.control.cc.CCDriver \
+  "$@"
diff --git a/pregelix/pregelix-dist/src/main/resources/scripts/pregelixnc b/pregelix/pregelix-dist/src/main/resources/scripts/pregelixnc
new file mode 100644
index 0000000..c01b4b4
--- /dev/null
+++ b/pregelix/pregelix-dist/src/main/resources/scripts/pregelixnc
@@ -0,0 +1,115 @@
+#!/bin/sh
+#
+#------------------------------------------------------------------------
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ------------------------------------------------------------------------
+#
+
+# resolve links - $0 may be a softlink
+PRG="$0"
+
+while [ -h "$PRG" ]; do
+  ls=`ls -ld "$PRG"`
+  link=`expr "$ls" : '.*-> \(.*\)$'`
+  if expr "$link" : '/.*' > /dev/null; then
+    PRG="$link"
+  else
+    PRG=`dirname "$PRG"`/"$link"
+  fi
+done
+
+PRGDIR=`dirname "$PRG"`
+BASEDIR=`cd "$PRGDIR/.." >/dev/null; pwd`
+
+
+
+# OS specific support.  $var _must_ be set to either true or false.
+cygwin=false;
+darwin=false;
+case "`uname`" in
+  CYGWIN*) cygwin=true ;;
+  Darwin*) darwin=true
+           if [ -z "$JAVA_VERSION" ] ; then
+             JAVA_VERSION="CurrentJDK"
+           else
+             echo "Using Java version: $JAVA_VERSION"
+           fi
+           if [ -z "$JAVA_HOME" ] ; then
+             JAVA_HOME=/System/Library/Frameworks/JavaVM.framework/Versions/${JAVA_VERSION}/Home
+           fi
+           ;;
+esac
+
+if [ -z "$JAVA_HOME" ] ; then
+  if [ -r /etc/gentoo-release ] ; then
+    JAVA_HOME=`java-config --jre-home`
+  fi
+fi
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched
+if $cygwin ; then
+  [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+  [ -n "$CLASSPATH" ] && CLASSPATH=`cygpath --path --unix "$CLASSPATH"`
+fi
+
+# If a specific java binary isn't specified search for the standard 'java' binary
+if [ -z "$JAVACMD" ] ; then
+  if [ -n "$JAVA_HOME"  ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+      # IBM's JDK on AIX uses strange locations for the executables
+      JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+      JAVACMD="$JAVA_HOME/bin/java"
+    fi
+  else
+    JAVACMD=`which java`
+  fi
+fi
+
+if [ ! -x "$JAVACMD" ] ; then
+  echo "Error: JAVA_HOME is not defined correctly." 1>&2
+  echo "  We cannot execute $JAVACMD" 1>&2
+  exit 1
+fi
+
+if [ -z "$REPO" ]
+then
+  REPO="$BASEDIR"/lib
+fi
+
+CLASSPATH=$CLASSPATH_PREFIX:"$HADOOP_HOME"/conf:/etc/hadoop/conf:"$BASEDIR"/etc:$1
+
+for f in ${REPO}/*.jar; do
+  CLASSPATH=${CLASSPATH}:$f;
+done
+
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin; then
+  [ -n "$CLASSPATH" ] && CLASSPATH=`cygpath --path --windows "$CLASSPATH"`
+  [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"`
+  [ -n "$HOME" ] && HOME=`cygpath --path --windows "$HOME"`2
+  [ -n "$BASEDIR" ] && BASEDIR=`cygpath --path --windows "$BASEDIR"`
+  [ -n "$REPO" ] && REPO=`cygpath --path --windows "$REPO"`
+fi
+
+exec "$JAVACMD" $JAVA_OPTS  \
+  -classpath "$CLASSPATH" \
+  -Dapp.name="pregelixnc" \
+  -Dapp.pid="$$" \
+  -Dapp.repo="$REPO" \
+  -Dapp.home="$BASEDIR" \
+  -Dbasedir="$BASEDIR" \
+  edu.uci.ics.hyracks.control.nc.NCDriver \
+  -app-nc-main-class edu.uci.ics.pregelix.runtime.bootstrap.NCApplicationEntryPoint "$@"
diff --git a/pregelix/pregelix-dist/src/main/resources/scripts/startAllNCs.sh b/pregelix/pregelix-dist/src/main/resources/scripts/startAllNCs.sh
new file mode 100644
index 0000000..afad064
--- /dev/null
+++ b/pregelix/pregelix-dist/src/main/resources/scripts/startAllNCs.sh
@@ -0,0 +1,38 @@
+#!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
+#
+#------------------------------------------------------------------------
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ------------------------------------------------------------------------
+#
+
+PREGELIX_PATH=`pwd`
+
+for i in `cat conf/slaves`
+do
+   ssh $i "cd ${PREGELIX_PATH}; export JAVA_HOME=${JAVA_HOME}; bin/startnc.sh"
+done
diff --git a/pregelix/pregelix-dist/src/main/resources/scripts/startCluster.sh b/pregelix/pregelix-dist/src/main/resources/scripts/startCluster.sh
new file mode 100644
index 0000000..55851e9
--- /dev/null
+++ b/pregelix/pregelix-dist/src/main/resources/scripts/startCluster.sh
@@ -0,0 +1,35 @@
+#!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
+#
+#------------------------------------------------------------------------
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ------------------------------------------------------------------------
+#
+
+bin/startcc.sh
+sleep 5
+bin/startAllNCs.sh
diff --git a/pregelix/pregelix-dist/src/main/resources/scripts/startDebugNc.sh b/pregelix/pregelix-dist/src/main/resources/scripts/startDebugNc.sh
new file mode 100644
index 0000000..8169bc9
--- /dev/null
+++ b/pregelix/pregelix-dist/src/main/resources/scripts/startDebugNc.sh
@@ -0,0 +1,82 @@
+#!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
+#
+#------------------------------------------------------------------------
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ------------------------------------------------------------------------
+#
+
+hostname
+
+#Get the IP address of the cc
+CCHOST_NAME=`cat conf/master`
+CURRENT_PATH=`pwd`
+CCHOST=`ssh ${CCHOST_NAME} "cd ${CURRENT_PATH}; bin/getip.sh"`
+
+#Import cluster properties
+. conf/cluster.properties
+. conf/debugnc.properties
+
+#Clean up temp dir
+
+rm -rf $NCTMP_DIR2
+mkdir $NCTMP_DIR2
+
+#Clean up log dir
+rm -rf $NCLOGS_DIR2
+mkdir $NCLOGS_DIR2
+
+
+#Clean up I/O working dir
+io_dirs=$(echo $IO_DIRS2 | tr "," "\n")
+for io_dir in $io_dirs
+do
+	rm -rf $io_dir
+	mkdir $io_dir
+done
+
+#Set JAVA_HOME
+export JAVA_HOME=$JAVA_HOME
+
+#Get OS
+IPADDR=`bin/getip.sh`
+
+#Get node ID
+NODEID=`hostname | cut -d '.' -f 1`
+NODEID=${NODEID}2
+
+#Set JAVA_OPTS
+export JAVA_OPTS=$NCJAVA_OPTS2
+
+PREGELIX_HOME=`pwd`
+
+#Enter the temp dir
+cd $NCTMP_DIR2
+
+#Launch hyracks nc
+#echo ${PREGELIX_HOME}/bin/pregelixnc -cc-host $CCHOST -cc-port $CC_CLUSTERPORT -cluster-net-ip-address $IPADDR  -data-ip-address $IPADDR -result-ip-address $IPADDR  -node-id $NODEID -iodevices "${IO_DIRS}"
+${PREGELIX_HOME}/bin/pregelixnc -cc-host $CCHOST -cc-port $CC_CLUSTERPORT -cluster-net-ip-address $IPADDR  -data-ip-address $IPADDR -result-ip-address $IPADDR  -node-id $NODEID -iodevices "${IO_DIRS2}" &> $NCLOGS_DIR2/$NODEID.log &
diff --git a/pregelix/pregelix-dist/src/main/resources/scripts/startcc.sh b/pregelix/pregelix-dist/src/main/resources/scripts/startcc.sh
new file mode 100644
index 0000000..2a6cab2
--- /dev/null
+++ b/pregelix/pregelix-dist/src/main/resources/scripts/startcc.sh
@@ -0,0 +1,65 @@
+#!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
+#
+#------------------------------------------------------------------------
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ------------------------------------------------------------------------
+#
+
+hostname
+
+#Import cluster properties
+. conf/cluster.properties
+
+#Get the IP address of the cc
+CCHOST_NAME=`cat conf/master`
+CCHOST=`bin/getip.sh`
+
+#Remove the temp dir
+rm -rf $CCTMP_DIR
+mkdir $CCTMP_DIR
+
+#Remove the logs dir
+rm -rf $CCLOGS_DIR
+mkdir $CCLOGS_DIR
+
+#Export JAVA_HOME and JAVA_OPTS
+export JAVA_HOME=$JAVA_HOME
+export JAVA_OPTS=$CCJAVA_OPTS
+
+PREGELIX_HOME=`pwd`
+
+#Enter the temp dir
+cd $CCTMP_DIR
+
+if [ -f "conf/topology.xml"  ]; then
+#Launch hyracks cc script with topology
+${PREGELIX_HOME}/bin/pregelixcc -client-net-ip-address $CCHOST -cluster-net-ip-address $CCHOST -client-net-port $CC_CLIENTPORT -cluster-net-port $CC_CLUSTERPORT -max-heartbeat-lapse-periods 999999 -default-max-job-attempts 0 -job-history-size 0 -cluster-topology "conf/topology.xml" &> $CCLOGS_DIR/cc.log &
+else
+#Launch hyracks cc script without toplogy
+${PREGELIX_HOME}/bin/pregelixcc -client-net-ip-address $CCHOST -cluster-net-ip-address $CCHOST -client-net-port $CC_CLIENTPORT -cluster-net-port $CC_CLUSTERPORT -max-heartbeat-lapse-periods 999999 -default-max-job-attempts 0 -job-history-size 0 &> $CCLOGS_DIR/cc.log &
+fi
diff --git a/pregelix/pregelix-dist/src/main/resources/scripts/startnc.sh b/pregelix/pregelix-dist/src/main/resources/scripts/startnc.sh
new file mode 100644
index 0000000..6727bd5
--- /dev/null
+++ b/pregelix/pregelix-dist/src/main/resources/scripts/startnc.sh
@@ -0,0 +1,80 @@
+#!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
+#
+#------------------------------------------------------------------------
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ------------------------------------------------------------------------
+#
+
+hostname
+
+MY_NAME=`hostname`
+#Get the IP address of the cc
+CCHOST_NAME=`cat conf/master`
+CURRENT_PATH=`pwd`
+CCHOST=`ssh ${CCHOST_NAME} "cd ${CURRENT_PATH}; bin/getip.sh"`
+
+#Import cluster properties
+. conf/cluster.properties
+
+#Clean up temp dir
+
+rm -rf $NCTMP_DIR
+mkdir $NCTMP_DIR
+
+#Clean up log dir
+rm -rf $NCLOGS_DIR
+mkdir $NCLOGS_DIR
+
+
+#Clean up I/O working dir
+io_dirs=$(echo $IO_DIRS | tr "," "\n")
+for io_dir in $io_dirs
+do
+	rm -rf $io_dir
+	mkdir $io_dir
+done
+
+#Set JAVA_HOME
+export JAVA_HOME=$JAVA_HOME
+
+IPADDR=`bin/getip.sh`
+#echo $IPADDR
+
+#Get node ID
+NODEID=`hostname | cut -d '.' -f 1`
+
+#Set JAVA_OPTS
+export JAVA_OPTS=$NCJAVA_OPTS
+
+PREGELIX_HOME=`pwd`
+
+#Enter the temp dir
+cd $NCTMP_DIR
+
+#Launch hyracks nc
+${PREGELIX_HOME}/bin/pregelixnc -cc-host $CCHOST -cc-port $CC_CLUSTERPORT -cluster-net-ip-address $IPADDR  -data-ip-address $IPADDR -result-ip-address $IPADDR  -node-id $NODEID -iodevices "${IO_DIRS}" &> $NCLOGS_DIR/$NODEID.log &
diff --git a/pregelix/pregelix-dist/src/main/resources/scripts/stopAllNCs.sh b/pregelix/pregelix-dist/src/main/resources/scripts/stopAllNCs.sh
new file mode 100644
index 0000000..b581208
--- /dev/null
+++ b/pregelix/pregelix-dist/src/main/resources/scripts/stopAllNCs.sh
@@ -0,0 +1,38 @@
+#!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
+#
+#------------------------------------------------------------------------
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ------------------------------------------------------------------------
+#
+
+PREGELIX_PATH=`pwd`
+
+for i in `cat conf/slaves`
+do
+   ssh $i "cd ${PREGELIX_PATH}; bin/stopnc.sh"
+done
diff --git a/pregelix/pregelix-dist/src/main/resources/scripts/stopCluster.sh b/pregelix/pregelix-dist/src/main/resources/scripts/stopCluster.sh
new file mode 100644
index 0000000..4b5e5a5
--- /dev/null
+++ b/pregelix/pregelix-dist/src/main/resources/scripts/stopCluster.sh
@@ -0,0 +1,35 @@
+#!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
+#
+#------------------------------------------------------------------------
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ------------------------------------------------------------------------
+#
+
+bin/stopAllNCs.sh
+sleep 2
+bin/stopcc.sh
diff --git a/pregelix/pregelix-dist/src/main/resources/scripts/stopcc.sh b/pregelix/pregelix-dist/src/main/resources/scripts/stopcc.sh
new file mode 100644
index 0000000..bd07e21
--- /dev/null
+++ b/pregelix/pregelix-dist/src/main/resources/scripts/stopcc.sh
@@ -0,0 +1,53 @@
+#!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
+#
+#------------------------------------------------------------------------
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ------------------------------------------------------------------------
+#
+
+hostname
+. conf/cluster.properties
+
+#Kill process
+#Kill process
+PID=`ps -ef|grep ${USER}|grep java|grep 'Dapp.name=pregelixcc'|awk '{print $2}'`
+
+if [ "$PID" == "" ]; then
+    PID=`ps -ef|grep ${USER}|grep java|grep 'hyracks'|awk '{print $2}'`
+fi
+
+if [ "$PID" == "" ]; then
+    USERID=`id | sed 's/^uid=//;s/(.*$//'`
+    PID=`ps -ef|grep ${USERID}|grep java|grep 'Dapp.name=pregelixcc'|awk '{print $2}'`
+fi
+
+echo $PID
+kill -9 $PID
+
+#Clean up CC temp dir
+rm -rf $CCTMP_DIR/*
diff --git a/pregelix/pregelix-dist/src/main/resources/scripts/stopnc.sh b/pregelix/pregelix-dist/src/main/resources/scripts/stopnc.sh
new file mode 100644
index 0000000..830fc7b
--- /dev/null
+++ b/pregelix/pregelix-dist/src/main/resources/scripts/stopnc.sh
@@ -0,0 +1,59 @@
+#!/bin/bash
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
+#
+#------------------------------------------------------------------------
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ------------------------------------------------------------------------
+#
+
+hostname
+. conf/cluster.properties
+
+#Kill process
+PID=`ps -ef|grep ${USER}|grep java|grep 'Dapp.name=pregelixnc'|awk '{print $2}'`
+
+if [ "$PID" == "" ]; then
+  PID=`ps -ef|grep ${USER}|grep java|grep 'hyracks'|awk '{print $2}'`
+fi
+
+if [ "$PID" == "" ]; then
+  USERID=`id | sed 's/^uid=//;s/(.*$//'`
+  PID=`ps -ef|grep ${USERID}|grep java|grep 'Dapp.name=pregelixnc'|awk '{print $2}'`
+fi
+
+echo $PID
+kill -9 $PID
+
+#Clean up I/O working dir
+io_dirs=$(echo $IO_DIRS | tr "," "\n")
+for io_dir in $io_dirs
+do
+	rm -rf $io_dir/*
+done
+
+#Clean up NC temp dir
+rm -rf $NCTMP_DIR/*
diff --git a/pregelix/pregelix-example/pom.xml b/pregelix/pregelix-example/pom.xml
index 1d08b8c..c2538b1 100644
--- a/pregelix/pregelix-example/pom.xml
+++ b/pregelix/pregelix-example/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>pregelix-example</artifactId>
@@ -7,7 +21,7 @@
 	<parent>
 		<groupId>edu.uci.ics.hyracks</groupId>
 		<artifactId>pregelix</artifactId>
-		<version>0.2.6-SNAPSHOT</version>
+		<version>0.2.7-SNAPSHOT</version>
 	</parent>
 
 	<build>
@@ -105,7 +119,7 @@
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>pregelix-core</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
diff --git a/pregelix/pregelix-example/src/main/assembly/binary-assembly.xml b/pregelix/pregelix-example/src/main/assembly/binary-assembly.xml
index 0500499..e722e72 100755
--- a/pregelix/pregelix-example/src/main/assembly/binary-assembly.xml
+++ b/pregelix/pregelix-example/src/main/assembly/binary-assembly.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <assembly>
   <id>binary-assembly</id>
   <formats>
diff --git a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/ConnectedComponentsVertex.java b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/ConnectedComponentsVertex.java
index 6adbf83..07d2d57 100644
--- a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/ConnectedComponentsVertex.java
+++ b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/ConnectedComponentsVertex.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/GraphMutationVertex.java b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/GraphMutationVertex.java
index 08de520..7cf8408 100644
--- a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/GraphMutationVertex.java
+++ b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/GraphMutationVertex.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/PageRankVertex.java b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/PageRankVertex.java
index 752b23a..8664667 100644
--- a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/PageRankVertex.java
+++ b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/PageRankVertex.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/ReachabilityVertex.java b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/ReachabilityVertex.java
index 8102c14..6a42636 100644
--- a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/ReachabilityVertex.java
+++ b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/ReachabilityVertex.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/ShortestPathsVertex.java b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/ShortestPathsVertex.java
index 396acae..41c26b1 100644
--- a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/ShortestPathsVertex.java
+++ b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/ShortestPathsVertex.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/client/Client.java b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/client/Client.java
index 597ad6e..6cb1f4a 100644
--- a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/client/Client.java
+++ b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/client/Client.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/inputformat/TextConnectedComponentsInputFormat.java b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/inputformat/TextConnectedComponentsInputFormat.java
index a802403..4062c74 100644
--- a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/inputformat/TextConnectedComponentsInputFormat.java
+++ b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/inputformat/TextConnectedComponentsInputFormat.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/inputformat/TextPageRankInputFormat.java b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/inputformat/TextPageRankInputFormat.java
index 8d0b776..f46d9c3 100644
--- a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/inputformat/TextPageRankInputFormat.java
+++ b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/inputformat/TextPageRankInputFormat.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/inputformat/TextReachibilityVertexInputFormat.java b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/inputformat/TextReachibilityVertexInputFormat.java
index 9ef1d49..5cf6c1c 100644
--- a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/inputformat/TextReachibilityVertexInputFormat.java
+++ b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/inputformat/TextReachibilityVertexInputFormat.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/inputformat/TextShortestPathsInputFormat.java b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/inputformat/TextShortestPathsInputFormat.java
index d445935..013a063 100644
--- a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/inputformat/TextShortestPathsInputFormat.java
+++ b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/inputformat/TextShortestPathsInputFormat.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/io/VLongWritable.java b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/io/VLongWritable.java
index a6c2c1e..e12d930 100644
--- a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/io/VLongWritable.java
+++ b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/io/VLongWritable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/maximalclique/AdjacencyListWritable.java b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/maximalclique/AdjacencyListWritable.java
index 83e0a6b..0a58c00 100644
--- a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/maximalclique/AdjacencyListWritable.java
+++ b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/maximalclique/AdjacencyListWritable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/maximalclique/CliquesWritable.java b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/maximalclique/CliquesWritable.java
index d2c5e6f..c08bac0 100644
--- a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/maximalclique/CliquesWritable.java
+++ b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/maximalclique/CliquesWritable.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/maximalclique/MaximalCliqueAggregator.java b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/maximalclique/MaximalCliqueAggregator.java
index 061e9e0..fe01d2b 100644
--- a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/maximalclique/MaximalCliqueAggregator.java
+++ b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/maximalclique/MaximalCliqueAggregator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.pregelix.example.maximalclique;
 
 import org.apache.hadoop.io.NullWritable;
diff --git a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/maximalclique/MaximalCliqueVertex.java b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/maximalclique/MaximalCliqueVertex.java
index 2ff800e..13c3bf5 100644
--- a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/maximalclique/MaximalCliqueVertex.java
+++ b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/maximalclique/MaximalCliqueVertex.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/maximalclique/TextMaximalCliqueInputFormat.java b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/maximalclique/TextMaximalCliqueInputFormat.java
index ec7b32c..2107e02 100644
--- a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/maximalclique/TextMaximalCliqueInputFormat.java
+++ b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/maximalclique/TextMaximalCliqueInputFormat.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/trianglecounting/TextTriangleCountingInputFormat.java b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/trianglecounting/TextTriangleCountingInputFormat.java
index bb399ff..c963b45 100644
--- a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/trianglecounting/TextTriangleCountingInputFormat.java
+++ b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/trianglecounting/TextTriangleCountingInputFormat.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/trianglecounting/TriangleCountingAggregator.java b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/trianglecounting/TriangleCountingAggregator.java
index 67b028d..06d119f 100644
--- a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/trianglecounting/TriangleCountingAggregator.java
+++ b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/trianglecounting/TriangleCountingAggregator.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.pregelix.example.trianglecounting;
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
diff --git a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/trianglecounting/TriangleCountingVertex.java b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/trianglecounting/TriangleCountingVertex.java
index 89bfee8..a8d85ab 100644
--- a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/trianglecounting/TriangleCountingVertex.java
+++ b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/trianglecounting/TriangleCountingVertex.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.pregelix.example.trianglecounting;
 
 import java.io.IOException;
diff --git a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/utils/VertexAggregator.java b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/utils/VertexAggregator.java
index d8f704e..1d3f15c 100644
--- a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/utils/VertexAggregator.java
+++ b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/utils/VertexAggregator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/utils/VertexSorter.java b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/utils/VertexSorter.java
index 8421088..855d371 100644
--- a/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/utils/VertexSorter.java
+++ b/pregelix/pregelix-example/src/main/java/edu/uci/ics/pregelix/example/utils/VertexSorter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/dataload/DataLoadTest.java b/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/dataload/DataLoadTest.java
index da6d564..b4e17b6 100644
--- a/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/dataload/DataLoadTest.java
+++ b/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/dataload/DataLoadTest.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/jobgen/JobGenerator.java b/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/jobgen/JobGenerator.java
index 8fafede..15117a1 100644
--- a/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/jobgen/JobGenerator.java
+++ b/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/jobgen/JobGenerator.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -23,6 +23,7 @@
 import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;
 
 import edu.uci.ics.pregelix.api.job.PregelixJob;
+import edu.uci.ics.pregelix.api.util.DefaultVertexPartitioner;
 import edu.uci.ics.pregelix.example.ConnectedComponentsVertex;
 import edu.uci.ics.pregelix.example.ConnectedComponentsVertex.SimpleConnectedComponentsVertexOutputFormat;
 import edu.uci.ics.pregelix.example.GraphMutationVertex;
@@ -80,6 +81,7 @@
         job.setVertexOutputFormatClass(SimplePageRankVertexOutputFormat.class);
         job.setMessageCombinerClass(PageRankVertex.SimpleSumCombiner.class);
         job.setNoramlizedKeyComputerClass(VLongNormalizedKeyComputer.class);
+        job.setVertexPartitionerClass(DefaultVertexPartitioner.class);
         FileInputFormat.setInputPaths(job, HDFS_INPUTPATH2);
         FileOutputFormat.setOutputPath(job, new Path(HDFS_OUTPUTPAH2));
         job.getConfiguration().setLong(PregelixJob.NUM_VERTICE, 23);
@@ -132,6 +134,7 @@
         job.setVertexOutputFormatClass(SimpleConnectedComponentsVertexOutputFormat.class);
         job.setMessageCombinerClass(ConnectedComponentsVertex.SimpleMinCombiner.class);
         job.setNoramlizedKeyComputerClass(VLongNormalizedKeyComputer.class);
+        job.setVertexPartitionerClass(DefaultVertexPartitioner.class);
         FileInputFormat.setInputPaths(job, HDFS_INPUTPATH2);
         FileOutputFormat.setOutputPath(job, new Path(HDFS_OUTPUTPAH2));
         job.getConfiguration().setLong(PregelixJob.NUM_VERTICE, 23);
@@ -230,11 +233,12 @@
         job.setVertexInputFormatClass(TextMaximalCliqueInputFormat.class);
         job.setVertexOutputFormatClass(MaximalCliqueVertexOutputFormat.class);
         job.setNoramlizedKeyComputerClass(VLongNormalizedKeyComputer.class);
+        job.setMutationOrVariableSizedUpdateHeavy(true);
         FileInputFormat.setInputPaths(job, HDFS_INPUTPATH3);
         FileOutputFormat.setOutputPath(job, new Path(HDFS_OUTPUTPAH3));
         job.getConfiguration().writeXml(new FileOutputStream(new File(outputPath)));
     }
-    
+
     private static void generateMaximalCliqueJob2(String jobName, String outputPath) throws IOException {
         PregelixJob job = new PregelixJob(jobName);
         job.setVertexClass(MaximalCliqueVertex.class);
@@ -243,11 +247,12 @@
         job.setVertexInputFormatClass(TextMaximalCliqueInputFormat.class);
         job.setVertexOutputFormatClass(MaximalCliqueVertexOutputFormat.class);
         job.setNoramlizedKeyComputerClass(VLongNormalizedKeyComputer.class);
+        job.setMutationOrVariableSizedUpdateHeavy(true);
         FileInputFormat.setInputPaths(job, HDFS_INPUTPATH4);
         FileOutputFormat.setOutputPath(job, new Path(HDFS_OUTPUTPAH3));
         job.getConfiguration().writeXml(new FileOutputStream(new File(outputPath)));
     }
-    
+
     private static void generateMaximalCliqueJob3(String jobName, String outputPath) throws IOException {
         PregelixJob job = new PregelixJob(jobName);
         job.setVertexClass(MaximalCliqueVertex.class);
@@ -256,6 +261,8 @@
         job.setVertexInputFormatClass(TextMaximalCliqueInputFormat.class);
         job.setVertexOutputFormatClass(MaximalCliqueVertexOutputFormat.class);
         job.setNoramlizedKeyComputerClass(VLongNormalizedKeyComputer.class);
+        job.setVertexPartitionerClass(DefaultVertexPartitioner.class);
+        job.setMutationOrVariableSizedUpdateHeavy(true);
         FileInputFormat.setInputPaths(job, HDFS_INPUTPATH5);
         FileOutputFormat.setOutputPath(job, new Path(HDFS_OUTPUTPAH3));
         job.getConfiguration().writeXml(new FileOutputStream(new File(outputPath)));
diff --git a/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/jobrun/RunJobTestCase.java b/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/jobrun/RunJobTestCase.java
index 7126e8c..f077053 100644
--- a/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/jobrun/RunJobTestCase.java
+++ b/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/jobrun/RunJobTestCase.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
@@ -94,7 +94,7 @@
     @Test
     public void test() throws Exception {
         setUp();
-        Plan[] plans = new Plan[] { Plan.OUTER_JOIN_SORT, Plan.OUTER_JOIN, Plan.INNER_JOIN, Plan.OUTER_JOIN_SINGLE_SORT };
+        Plan[] plans = new Plan[] { Plan.INNER_JOIN, Plan.OUTER_JOIN, Plan.OUTER_JOIN_SINGLE_SORT, Plan.OUTER_JOIN_SORT };
         for (Plan plan : plans) {
             driver.runJob(job, plan, PregelixHyracksIntegrationUtil.CC_HOST,
                     PregelixHyracksIntegrationUtil.TEST_HYRACKS_CC_CLIENT_PORT, false);
diff --git a/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/jobrun/RunJobTestSuite.java b/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/jobrun/RunJobTestSuite.java
index 0a444fa..ea89bb9 100644
--- a/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/jobrun/RunJobTestSuite.java
+++ b/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/jobrun/RunJobTestSuite.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/util/TestUtils.java b/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/util/TestUtils.java
index d406125..fe07cf5 100644
--- a/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/util/TestUtils.java
+++ b/pregelix/pregelix-example/src/test/java/edu/uci/ics/pregelix/example/util/TestUtils.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-example/src/test/resources/cluster/cluster.properties b/pregelix/pregelix-example/src/test/resources/cluster/cluster.properties
index 14f8bd4..baa8a24 100644
--- a/pregelix/pregelix-example/src/test/resources/cluster/cluster.properties
+++ b/pregelix/pregelix-example/src/test/resources/cluster/cluster.properties
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 #The CC port for Hyracks clients
 CC_CLIENTPORT=3099
 
diff --git a/pregelix/pregelix-example/src/test/resources/cluster/stores.properties b/pregelix/pregelix-example/src/test/resources/cluster/stores.properties
index 04732be..3f75c2b 100644
--- a/pregelix/pregelix-example/src/test/resources/cluster/stores.properties
+++ b/pregelix/pregelix-example/src/test/resources/cluster/stores.properties
@@ -1 +1,15 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 store=teststore1,teststore2
\ No newline at end of file
diff --git a/pregelix/pregelix-example/src/test/resources/hadoop/conf/core-site.xml b/pregelix/pregelix-example/src/test/resources/hadoop/conf/core-site.xml
index 47dfac5..5b1023c 100644
--- a/pregelix/pregelix-example/src/test/resources/hadoop/conf/core-site.xml
+++ b/pregelix/pregelix-example/src/test/resources/hadoop/conf/core-site.xml
@@ -1,4 +1,18 @@
 <?xml version="1.0"?>
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
 
 <!-- Put site-specific property overrides in this file. -->
diff --git a/pregelix/pregelix-example/src/test/resources/hadoop/conf/hdfs-site.xml b/pregelix/pregelix-example/src/test/resources/hadoop/conf/hdfs-site.xml
index 8d29b1d..bff9a3e 100644
--- a/pregelix/pregelix-example/src/test/resources/hadoop/conf/hdfs-site.xml
+++ b/pregelix/pregelix-example/src/test/resources/hadoop/conf/hdfs-site.xml
@@ -1,4 +1,18 @@
 <?xml version="1.0"?>
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
 
 <!-- Put site-specific property overrides in this file. -->
diff --git a/pregelix/pregelix-example/src/test/resources/hadoop/conf/log4j.properties b/pregelix/pregelix-example/src/test/resources/hadoop/conf/log4j.properties
index 3335964..44876c5 100755
--- a/pregelix/pregelix-example/src/test/resources/hadoop/conf/log4j.properties
+++ b/pregelix/pregelix-example/src/test/resources/hadoop/conf/log4j.properties
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 # Define some default values that can be overridden by system properties
 hadoop.root.logger=FATAL,console
 hadoop.log.dir=.
diff --git a/pregelix/pregelix-example/src/test/resources/hadoop/conf/mapred-site.xml b/pregelix/pregelix-example/src/test/resources/hadoop/conf/mapred-site.xml
index 71450f1..4461fce 100644
--- a/pregelix/pregelix-example/src/test/resources/hadoop/conf/mapred-site.xml
+++ b/pregelix/pregelix-example/src/test/resources/hadoop/conf/mapred-site.xml
@@ -1,4 +1,18 @@
 <?xml version="1.0"?>
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
 
 <!-- Put site-specific property overrides in this file. -->
diff --git a/pregelix/pregelix-example/src/test/resources/jobs/ConnectedComponentsRealComplex.xml b/pregelix/pregelix-example/src/test/resources/jobs/ConnectedComponentsRealComplex.xml
index c7fec9f..cca66bb 100644
--- a/pregelix/pregelix-example/src/test/resources/jobs/ConnectedComponentsRealComplex.xml
+++ b/pregelix/pregelix-example/src/test/resources/jobs/ConnectedComponentsRealComplex.xml
@@ -122,6 +122,7 @@
 <property><name>pregelix.vertexOutputFormatClass</name><value>edu.uci.ics.pregelix.example.ConnectedComponentsVertex$SimpleConnectedComponentsVertexOutputFormat</value></property>
 <property><name>mapred.reduce.copy.backoff</name><value>300</value></property>
 <property><name>mapred.map.tasks.speculative.execution</name><value>true</value></property>
+<property><name>pregelix.partitionerClass</name><value>edu.uci.ics.pregelix.api.util.DefaultVertexPartitioner</value></property>
 <property><name>mapred.inmem.merge.threshold</name><value>1000</value></property>
 <property><name>hadoop.logfile.size</name><value>10000000</value></property>
 <property><name>pregelix.vertexInputFormatClass</name><value>edu.uci.ics.pregelix.example.inputformat.TextConnectedComponentsInputFormat</value></property>
diff --git a/pregelix/pregelix-example/src/test/resources/jobs/MaximalClique.xml b/pregelix/pregelix-example/src/test/resources/jobs/MaximalClique.xml
index c0559d9..b4c42e6 100644
--- a/pregelix/pregelix-example/src/test/resources/jobs/MaximalClique.xml
+++ b/pregelix/pregelix-example/src/test/resources/jobs/MaximalClique.xml
@@ -80,6 +80,7 @@
 <property><name>mapred.tasktracker.reduce.tasks.maximum</name><value>2</value></property>
 <property><name>io.compression.codecs</name><value>org.apache.hadoop.io.compress.DefaultCodec,org.apache.hadoop.io.compress.GzipCodec,org.apache.hadoop.io.compress.BZip2Codec</value></property>
 <property><name>mapred.job.shuffle.input.buffer.percent</name><value>0.70</value></property>
+<property><name>pregelix.updateIntensive</name><value>true</value></property>
 <property><name>io.seqfile.compress.blocksize</name><value>1000000</value></property>
 <property><name>mapred.queue.names</name><value>default</value></property>
 <property><name>fs.har.impl</name><value>org.apache.hadoop.fs.HarFileSystem</value></property>
diff --git a/pregelix/pregelix-example/src/test/resources/jobs/MaximalClique2.xml b/pregelix/pregelix-example/src/test/resources/jobs/MaximalClique2.xml
index 541806d..6cf075b 100644
--- a/pregelix/pregelix-example/src/test/resources/jobs/MaximalClique2.xml
+++ b/pregelix/pregelix-example/src/test/resources/jobs/MaximalClique2.xml
@@ -80,6 +80,7 @@
 <property><name>mapred.tasktracker.reduce.tasks.maximum</name><value>2</value></property>
 <property><name>io.compression.codecs</name><value>org.apache.hadoop.io.compress.DefaultCodec,org.apache.hadoop.io.compress.GzipCodec,org.apache.hadoop.io.compress.BZip2Codec</value></property>
 <property><name>mapred.job.shuffle.input.buffer.percent</name><value>0.70</value></property>
+<property><name>pregelix.updateIntensive</name><value>true</value></property>
 <property><name>io.seqfile.compress.blocksize</name><value>1000000</value></property>
 <property><name>mapred.queue.names</name><value>default</value></property>
 <property><name>fs.har.impl</name><value>org.apache.hadoop.fs.HarFileSystem</value></property>
diff --git a/pregelix/pregelix-example/src/test/resources/jobs/MaximalClique3.xml b/pregelix/pregelix-example/src/test/resources/jobs/MaximalClique3.xml
index 7214b3f..49e2e6f 100644
--- a/pregelix/pregelix-example/src/test/resources/jobs/MaximalClique3.xml
+++ b/pregelix/pregelix-example/src/test/resources/jobs/MaximalClique3.xml
@@ -80,6 +80,7 @@
 <property><name>mapred.tasktracker.reduce.tasks.maximum</name><value>2</value></property>
 <property><name>io.compression.codecs</name><value>org.apache.hadoop.io.compress.DefaultCodec,org.apache.hadoop.io.compress.GzipCodec,org.apache.hadoop.io.compress.BZip2Codec</value></property>
 <property><name>mapred.job.shuffle.input.buffer.percent</name><value>0.70</value></property>
+<property><name>pregelix.updateIntensive</name><value>true</value></property>
 <property><name>io.seqfile.compress.blocksize</name><value>1000000</value></property>
 <property><name>mapred.queue.names</name><value>default</value></property>
 <property><name>fs.har.impl</name><value>org.apache.hadoop.fs.HarFileSystem</value></property>
@@ -120,6 +121,7 @@
 <property><name>pregelix.vertexOutputFormatClass</name><value>edu.uci.ics.pregelix.example.maximalclique.MaximalCliqueVertex$MaximalCliqueVertexOutputFormat</value></property>
 <property><name>mapred.reduce.copy.backoff</name><value>300</value></property>
 <property><name>mapred.map.tasks.speculative.execution</name><value>true</value></property>
+<property><name>pregelix.partitionerClass</name><value>edu.uci.ics.pregelix.api.util.DefaultVertexPartitioner</value></property>
 <property><name>mapred.inmem.merge.threshold</name><value>1000</value></property>
 <property><name>hadoop.logfile.size</name><value>10000000</value></property>
 <property><name>pregelix.vertexInputFormatClass</name><value>edu.uci.ics.pregelix.example.maximalclique.TextMaximalCliqueInputFormat</value></property>
diff --git a/pregelix/pregelix-example/src/test/resources/jobs/PageRankRealComplex.xml b/pregelix/pregelix-example/src/test/resources/jobs/PageRankRealComplex.xml
index ceea85b..c4366d7 100644
--- a/pregelix/pregelix-example/src/test/resources/jobs/PageRankRealComplex.xml
+++ b/pregelix/pregelix-example/src/test/resources/jobs/PageRankRealComplex.xml
@@ -122,6 +122,7 @@
 <property><name>pregelix.vertexOutputFormatClass</name><value>edu.uci.ics.pregelix.example.PageRankVertex$SimplePageRankVertexOutputFormat</value></property>
 <property><name>mapred.reduce.copy.backoff</name><value>300</value></property>
 <property><name>mapred.map.tasks.speculative.execution</name><value>true</value></property>
+<property><name>pregelix.partitionerClass</name><value>edu.uci.ics.pregelix.api.util.DefaultVertexPartitioner</value></property>
 <property><name>mapred.inmem.merge.threshold</name><value>1000</value></property>
 <property><name>hadoop.logfile.size</name><value>10000000</value></property>
 <property><name>pregelix.vertexInputFormatClass</name><value>edu.uci.ics.pregelix.example.inputformat.TextPageRankInputFormat</value></property>
diff --git a/pregelix/pregelix-example/src/test/resources/log4j.properties b/pregelix/pregelix-example/src/test/resources/log4j.properties
index d5e6004..0be7ebf 100755
--- a/pregelix/pregelix-example/src/test/resources/log4j.properties
+++ b/pregelix/pregelix-example/src/test/resources/log4j.properties
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 # Define some default values that can be overridden by system properties
 hadoop.root.logger=FATAL,console
 hadoop.log.dir=.
diff --git a/pregelix/pregelix-example/src/test/resources/logging.properties b/pregelix/pregelix-example/src/test/resources/logging.properties
index b8f2be9..bebd5da 100644
--- a/pregelix/pregelix-example/src/test/resources/logging.properties
+++ b/pregelix/pregelix-example/src/test/resources/logging.properties
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# you may obtain a copy of the License from
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#*/
 ############################################################
 #  	Default Logging Configuration File
 #
diff --git a/pregelix/pregelix-example/src/test/resources/topology.xml b/pregelix/pregelix-example/src/test/resources/topology.xml
index 2a6c380..67cb9f4 100755
--- a/pregelix/pregelix-example/src/test/resources/topology.xml
+++ b/pregelix/pregelix-example/src/test/resources/topology.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <cluster-topology>
     <network-switch name="Global">
         <network-switch name="local">
diff --git a/pregelix/pregelix-runtime/pom.xml b/pregelix/pregelix-runtime/pom.xml
index 2b56271..54e2256 100644
--- a/pregelix/pregelix-runtime/pom.xml
+++ b/pregelix/pregelix-runtime/pom.xml
@@ -1,3 +1,17 @@
+<!--
+ ! Copyright 2009-2013 by The Regents of the University of California
+ ! Licensed under the Apache License, Version 2.0 (the "License");
+ ! you may not use this file except in compliance with the License.
+ ! you may obtain a copy of the License from
+ ! 
+ !     http://www.apache.org/licenses/LICENSE-2.0
+ ! 
+ ! Unless required by applicable law or agreed to in writing, software
+ ! distributed under the License is distributed on an "AS IS" BASIS,
+ ! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ! See the License for the specific language governing permissions and
+ ! limitations under the License.
+ !-->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>pregelix-runtime</artifactId>
@@ -7,7 +21,7 @@
 	<parent>
     		<groupId>edu.uci.ics.hyracks</groupId>
     		<artifactId>pregelix</artifactId>
-    		<version>0.2.6-SNAPSHOT</version>
+    		<version>0.2.7-SNAPSHOT</version>
   	</parent>
 
 
@@ -74,82 +88,89 @@
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>pregelix-api</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>pregelix-dataflow-std</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>pregelix-dataflow</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-dataflow-std</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-api</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-dataflow-common</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-data-std</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-storage-am-common</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-storage-am-btree</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
+			<type>jar</type>
+			<scope>compile</scope>
+		</dependency>
+		<dependency>
+			<groupId>edu.uci.ics.hyracks</groupId>
+			<artifactId>hyracks-storage-am-lsm-common</artifactId>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-control-cc</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-control-nc</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-ipc</artifactId>
-			<version>0.2.6-SNAPSHOT</version>
+			<version>0.2.7-SNAPSHOT</version>
 			<type>jar</type>
 			<scope>compile</scope>
 		</dependency>
diff --git a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/bootstrap/IndexLifeCycleManagerProvider.java b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/bootstrap/IndexLifeCycleManagerProvider.java
index 4fce6b3..8463a5c 100644
--- a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/bootstrap/IndexLifeCycleManagerProvider.java
+++ b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/bootstrap/IndexLifeCycleManagerProvider.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.pregelix.runtime.bootstrap;
 
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
diff --git a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/bootstrap/NCApplicationEntryPoint.java b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/bootstrap/NCApplicationEntryPoint.java
index fbebc66..9607494 100644
--- a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/bootstrap/NCApplicationEntryPoint.java
+++ b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/bootstrap/NCApplicationEntryPoint.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.pregelix.runtime.bootstrap;
 
 import edu.uci.ics.hyracks.api.application.INCApplicationContext;
diff --git a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/bootstrap/StorageManagerInterface.java b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/bootstrap/StorageManagerInterface.java
index 0cce59d..de335e5 100644
--- a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/bootstrap/StorageManagerInterface.java
+++ b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/bootstrap/StorageManagerInterface.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/bootstrap/VirtualBufferCacheProvider.java b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/bootstrap/VirtualBufferCacheProvider.java
new file mode 100644
index 0000000..ec51047
--- /dev/null
+++ b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/bootstrap/VirtualBufferCacheProvider.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.pregelix.runtime.bootstrap;
+
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCache;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.IVirtualBufferCacheProvider;
+import edu.uci.ics.pregelix.dataflow.context.RuntimeContext;
+
+/**
+ * The virtual buffer cache provider
+ * 
+ * @author yingyib
+ */
+public class VirtualBufferCacheProvider implements IVirtualBufferCacheProvider {
+
+    private static final long serialVersionUID = 1L;
+
+    public VirtualBufferCacheProvider(){
+        
+    }
+    
+    @Override
+    public synchronized IVirtualBufferCache getVirtualBufferCache(IHyracksTaskContext ctx) {
+        return RuntimeContext.get(ctx).getVirtualBufferCache();
+    }
+}
diff --git a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/function/ComputeUpdateFunctionFactory.java b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/function/ComputeUpdateFunctionFactory.java
index caeeb10..16ecf6c 100644
--- a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/function/ComputeUpdateFunctionFactory.java
+++ b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/function/ComputeUpdateFunctionFactory.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/function/NoOpUpdateFunctionFactory.java b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/function/NoOpUpdateFunctionFactory.java
new file mode 100644
index 0000000..88577c2
--- /dev/null
+++ b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/function/NoOpUpdateFunctionFactory.java
@@ -0,0 +1,67 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.pregelix.runtime.function;
+
+import edu.uci.ics.hyracks.api.comm.IFrameWriter;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.dataflow.common.comm.io.ArrayTupleBuilder;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
+import edu.uci.ics.pregelix.dataflow.std.base.IUpdateFunction;
+import edu.uci.ics.pregelix.dataflow.std.base.IUpdateFunctionFactory;
+
+/**
+ * No operation update function factory
+ * 
+ * @author yingyib
+ */
+public class NoOpUpdateFunctionFactory implements IUpdateFunctionFactory {
+    private static final long serialVersionUID = 1L;
+    public static NoOpUpdateFunctionFactory INSTANCE = new NoOpUpdateFunctionFactory();
+
+    private NoOpUpdateFunctionFactory() {
+
+    }
+
+    @Override
+    public IUpdateFunction createFunction() {
+        return new IUpdateFunction() {
+
+            @Override
+            public void open(IHyracksTaskContext ctx, RecordDescriptor rd, IFrameWriter... writer)
+                    throws HyracksDataException {
+
+            }
+
+            @Override
+            public void process(Object[] tuple) throws HyracksDataException {
+
+            }
+
+            @Override
+            public void close() throws HyracksDataException {
+
+            }
+
+            @Override
+            public void update(ITupleReference tupleRef, ArrayTupleBuilder cloneUpdateTb) throws HyracksDataException {
+
+            }
+
+        };
+    }
+
+}
diff --git a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/function/StartComputeUpdateFunctionFactory.java b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/function/StartComputeUpdateFunctionFactory.java
index 48d4d80..fa7e0a1 100644
--- a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/function/StartComputeUpdateFunctionFactory.java
+++ b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/function/StartComputeUpdateFunctionFactory.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/simpleagg/AccumulatingAggregatorFactory.java b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/simpleagg/AccumulatingAggregatorFactory.java
index 851a83a..77f28e4 100644
--- a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/simpleagg/AccumulatingAggregatorFactory.java
+++ b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/simpleagg/AccumulatingAggregatorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/simpleagg/AggregationFunction.java b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/simpleagg/AggregationFunction.java
index 3cf46a2..8090dff 100644
--- a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/simpleagg/AggregationFunction.java
+++ b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/simpleagg/AggregationFunction.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/simpleagg/AggregationFunctionFactory.java b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/simpleagg/AggregationFunctionFactory.java
index 7ce9e1d..33dfa5d 100644
--- a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/simpleagg/AggregationFunctionFactory.java
+++ b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/simpleagg/AggregationFunctionFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/DatatypeHelper.java b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/DatatypeHelper.java
index f9085c4..b121b5b 100644
--- a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/DatatypeHelper.java
+++ b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/DatatypeHelper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/MergePartitionComputerFactory.java b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/MergePartitionComputerFactory.java
index 8edddf6..610f482 100644
--- a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/MergePartitionComputerFactory.java
+++ b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/MergePartitionComputerFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/MsgListNullWriterFactory.java b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/MsgListNullWriterFactory.java
index 97eac11..4eaa21c 100644
--- a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/MsgListNullWriterFactory.java
+++ b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/MsgListNullWriterFactory.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/PostSuperStepRuntimeHookFactory.java b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/PostSuperStepRuntimeHookFactory.java
index 2150f2e..372226f 100644
--- a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/PostSuperStepRuntimeHookFactory.java
+++ b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/PostSuperStepRuntimeHookFactory.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/PreSuperStepRuntimeHookFactory.java b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/PreSuperStepRuntimeHookFactory.java
index 850ae1e..99bcac5 100644
--- a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/PreSuperStepRuntimeHookFactory.java
+++ b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/PreSuperStepRuntimeHookFactory.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/RuntimeHookFactory.java b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/RuntimeHookFactory.java
index 05b1542..5e8ac1e 100644
--- a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/RuntimeHookFactory.java
+++ b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/RuntimeHookFactory.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/VertexIdNullWriterFactory.java b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/VertexIdNullWriterFactory.java
index f0114dd..a23ca4b 100644
--- a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/VertexIdNullWriterFactory.java
+++ b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/VertexIdNullWriterFactory.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/VertexIdPartitionComputerFactory.java b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/VertexIdPartitionComputerFactory.java
index 5b4b1f0..6fa6434 100644
--- a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/VertexIdPartitionComputerFactory.java
+++ b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/VertexIdPartitionComputerFactory.java
@@ -1,11 +1,11 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
- *
+ * 
  *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/VertexPartitionComputerFactory.java b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/VertexPartitionComputerFactory.java
new file mode 100644
index 0000000..acccabb
--- /dev/null
+++ b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/VertexPartitionComputerFactory.java
@@ -0,0 +1,73 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.pregelix.runtime.touchpoint;
+
+import java.io.DataInputStream;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.io.WritableComparable;
+
+import edu.uci.ics.hyracks.api.comm.IFrameTupleAccessor;
+import edu.uci.ics.hyracks.api.dataflow.value.ITuplePartitionComputer;
+import edu.uci.ics.hyracks.api.dataflow.value.ITuplePartitionComputerFactory;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.dataflow.common.comm.util.ByteBufferInputStream;
+import edu.uci.ics.pregelix.api.graph.VertexPartitioner;
+import edu.uci.ics.pregelix.api.util.BspUtils;
+import edu.uci.ics.pregelix.dataflow.base.IConfigurationFactory;
+
+/**
+ * The vertex-based partition computer factory.
+ * It is used to support customized graph partitioning function.
+ * 
+ * @author yingyib
+ */
+public class VertexPartitionComputerFactory implements ITuplePartitionComputerFactory {
+
+    private static final long serialVersionUID = 1L;
+    private final IConfigurationFactory confFactory;
+
+    public VertexPartitionComputerFactory(IConfigurationFactory confFactory) {
+        this.confFactory = confFactory;
+    }
+
+    @SuppressWarnings("rawtypes")
+    public ITuplePartitionComputer createPartitioner() {
+        try {
+            final Configuration conf = confFactory.createConfiguration();
+            return new ITuplePartitionComputer() {
+                private final ByteBufferInputStream bbis = new ByteBufferInputStream();
+                private final DataInputStream dis = new DataInputStream(bbis);
+                private final VertexPartitioner partitioner = BspUtils.createVertexPartitioner(conf);
+                private final WritableComparable vertexId = BspUtils.createVertexIndex(conf);
+
+                @SuppressWarnings("unchecked")
+                public int partition(IFrameTupleAccessor accessor, int tIndex, int nParts) throws HyracksDataException {
+                    try {
+                        int keyStart = accessor.getTupleStartOffset(tIndex) + accessor.getFieldSlotsLength()
+                                + accessor.getFieldStartOffset(tIndex, 0);
+                        bbis.setByteBuffer(accessor.getBuffer(), keyStart);
+                        vertexId.readFields(dis);
+                        return Math.abs(partitioner.getPartitionId(vertexId, nParts) % nParts);
+                    } catch (Exception e) {
+                        throw new HyracksDataException(e);
+                    }
+                }
+            };
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+    }
+}
diff --git a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/WritableDescComparingBinaryComparatorFactory.java b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/WritableDescComparingBinaryComparatorFactory.java
index 2c7f4b2..d461147 100644
--- a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/WritableDescComparingBinaryComparatorFactory.java
+++ b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/WritableDescComparingBinaryComparatorFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 by The Regents of the University of California
+ * Copyright 2009-2013 by The Regents of the University of California
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * you may obtain a copy of the License from
diff --git a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/WritableSerializerDeserializerFactory.java b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/WritableSerializerDeserializerFactory.java
index 96f781c..435d081 100644
--- a/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/WritableSerializerDeserializerFactory.java
+++ b/pregelix/pregelix-runtime/src/main/java/edu/uci/ics/pregelix/runtime/touchpoint/WritableSerializerDeserializerFactory.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package edu.uci.ics.pregelix.runtime.touchpoint;
 
 import org.apache.hadoop.io.Writable;