diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-0.20.2/pom.xml b/hyracks/hyracks-hdfs/hyracks-hdfs-0.20.2/pom.xml
new file mode 100644
index 0000000..e74d610
--- /dev/null
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-0.20.2/pom.xml
@@ -0,0 +1,103 @@
+<?xml version="1.0"?>
+<project
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
+	xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+	<modelVersion>4.0.0</modelVersion>
+	<artifactId>hyracks-hdfs-0.20.2</artifactId>
+	<name>hyracks-hdfs-0.20.2</name>
+	<parent>
+		<artifactId>hyracks-hdfs</artifactId>
+		<groupId>edu.uci.ics.hyracks</groupId>
+		<version>0.2.3-SNAPSHOT</version>
+	</parent>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-compiler-plugin</artifactId>
+				<version>2.0.2</version>
+				<configuration>
+					<source>1.6</source>
+					<target>1.6</target>
+				</configuration>
+			</plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-surefire-plugin</artifactId>
+				<version>2.7.2</version>
+				<configuration>
+					<forkMode>pertest</forkMode>
+					<includes>
+						<include>**/*TestSuite.java</include>
+						<include>**/*Test.java</include>
+					</includes>
+				</configuration>
+			</plugin>
+		</plugins>
+	</build>
+
+	<profiles>
+		<profile>
+			<activation>
+				<activeByDefault>true</activeByDefault>
+			</activation>
+			<id>hadoop-0.20.2</id>
+			<dependencies>
+				<dependency>
+					<groupId>org.apache.hadoop</groupId>
+					<artifactId>hadoop-core</artifactId>
+					<version>0.20.2</version>
+					<type>jar</type>
+					<scope>compile</scope>
+				</dependency>
+				<dependency>
+					<groupId>org.apache.hadoop</groupId>
+					<artifactId>hadoop-test</artifactId>
+					<version>0.20.2</version>
+					<type>jar</type>
+					<scope>compile</scope>
+				</dependency>
+			</dependencies>
+		</profile>
+		<profile>
+			<activation>
+				<activeByDefault>false</activeByDefault>
+			</activation>
+			<id>hadoop-1.0.4</id>
+			<dependencies>
+				<dependency>
+					<groupId>org.apache.hadoop</groupId>
+					<artifactId>hadoop-core</artifactId>
+					<version>1.0.4</version>
+					<type>jar</type>
+					<scope>compile</scope>
+				</dependency>
+				<dependency>
+					<groupId>org.apache.hadoop</groupId>
+					<artifactId>hadoop-minicluster</artifactId>
+					<version>1.0.4</version>
+					<type>jar</type>
+					<scope>compile</scope>
+				</dependency>
+				<dependency>
+					<groupId>org.apache.hadoop</groupId>
+					<artifactId>hadoop-test</artifactId>
+					<version>1.0.4</version>
+					<type>jar</type>
+					<scope>compile</scope>
+				</dependency>
+			</dependencies>
+		</profile>
+	</profiles>
+
+	<dependencies>
+		<dependency>
+			<groupId>edu.uci.ics.hyracks</groupId>
+			<artifactId>hyracks-api</artifactId>
+			<version>0.2.3-SNAPSHOT</version>
+			<type>jar</type>
+			<scope>compile</scope>
+		</dependency>
+	</dependencies>
+</project>
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
new file mode 100644
index 0000000..a2b16c6
--- /dev/null
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-0.20.2/src/main/java/edu/uci/ics/hyracks/hdfs/ContextFactory.java
@@ -0,0 +1,25 @@
+package edu.uci.ics.hyracks.hdfs;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.mapreduce.InputSplit;
+import org.apache.hadoop.mapreduce.Mapper;
+import org.apache.hadoop.mapreduce.TaskAttemptContext;
+import org.apache.hadoop.mapreduce.TaskAttemptID;
+
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+
+/**
+ * The wrapper to generate TaskTattemptContext
+ */
+public class ContextFactory {
+
+    @SuppressWarnings({ "unchecked", "rawtypes" })
+    public TaskAttemptContext createContext(Configuration conf, InputSplit split) throws HyracksDataException {
+        try {
+            return new Mapper().new Context(conf, new TaskAttemptID(), null, null, null, null, split);
+        } catch (Exception e) {
+            throw new HyracksDataException(e);
+        }
+    }
+
+}
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
new file mode 100644
index 0000000..9133d35
--- /dev/null
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-0.20.2/src/main/java/edu/uci/ics/hyracks/hdfs/MiniDFSClusterFactory.java
@@ -0,0 +1,17 @@
+package edu.uci.ics.hyracks.hdfs;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.hdfs.MiniDFSCluster;
+
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+
+public class MiniDFSClusterFactory {
+
+    public MiniDFSCluster getMiniDFSCluster(Configuration conf, int numberOfNC) throws HyracksDataException {
+        try {
+            return new MiniDFSCluster(conf, numberOfNC, true, null);
+        } catch (Exception e) {
+            throw new HyracksDataException(e);
+        }
+    }
+}
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-0.23.1/pom.xml b/hyracks/hyracks-hdfs/hyracks-hdfs-0.23.1/pom.xml
new file mode 100644
index 0000000..27a1e33
--- /dev/null
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-0.23.1/pom.xml
@@ -0,0 +1,123 @@
+<?xml version="1.0"?>
+<project
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
+	xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+	<modelVersion>4.0.0</modelVersion>
+	<artifactId>hyracks-hdfs-0.23.1</artifactId>
+	<name>hyracks-hdfs-0.23.1</name>
+	<parent>
+		<artifactId>hyracks-hdfs</artifactId>
+		<groupId>edu.uci.ics.hyracks</groupId>
+		<version>0.2.3-SNAPSHOT</version>
+	</parent>
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-compiler-plugin</artifactId>
+				<version>2.0.2</version>
+				<configuration>
+					<source>1.6</source>
+					<target>1.6</target>
+				</configuration>
+			</plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-surefire-plugin</artifactId>
+				<version>2.7.2</version>
+				<configuration>
+					<forkMode>pertest</forkMode>
+					<includes>
+						<include>**/*TestSuite.java</include>
+						<include>**/*Test.java</include>
+					</includes>
+				</configuration>
+			</plugin>
+		</plugins>
+	</build>
+
+	<profiles>
+		<profile>
+			<activation>
+				<activeByDefault>true</activeByDefault>
+			</activation>
+			<id>hadoop-0.23.1</id>
+			<dependencies>
+				<dependency>
+					<groupId>org.apache.hadoop</groupId>
+					<artifactId>hadoop-common</artifactId>
+					<version>0.23.1</version>
+					<type>jar</type>
+					<scope>compile</scope>
+				</dependency>
+				<dependency>
+					<groupId>org.apache.hadoop</groupId>
+					<artifactId>hadoop-mapreduce-client-core</artifactId>
+					<version>0.23.1</version>
+					<type>jar</type>
+					<scope>compile</scope>
+				</dependency>
+				<dependency>
+					<groupId>org.apache.hadoop</groupId>
+					<artifactId>hadoop-hdfs</artifactId>
+					<version>0.23.1</version>
+					<type>jar</type>
+					<scope>compile</scope>
+				</dependency>
+				<dependency>
+					<groupId>org.apache.hadoop</groupId>
+					<artifactId>hadoop-minicluster</artifactId>
+					<version>0.23.1</version>
+					<type>jar</type>
+					<scope>compile</scope>
+				</dependency>
+			</dependencies>
+		</profile>
+		<profile>
+			<id>hadoop-0.23.6</id>
+			<activation>
+				<activeByDefault>false</activeByDefault>
+			</activation>
+			<dependencies>
+				<dependency>
+					<groupId>org.apache.hadoop</groupId>
+					<artifactId>hadoop-common</artifactId>
+					<version>0.23.6</version>
+					<type>jar</type>
+					<scope>compile</scope>
+				</dependency>
+				<dependency>
+					<groupId>org.apache.hadoop</groupId>
+					<artifactId>hadoop-mapreduce-client-core</artifactId>
+					<version>0.23.6</version>
+					<type>jar</type>
+					<scope>compile</scope>
+				</dependency>
+				<dependency>
+					<groupId>org.apache.hadoop</groupId>
+					<artifactId>hadoop-hdfs</artifactId>
+					<version>0.23.6</version>
+					<type>jar</type>
+					<scope>compile</scope>
+				</dependency>
+				<dependency>
+					<groupId>org.apache.hadoop</groupId>
+					<artifactId>hadoop-minicluster</artifactId>
+					<version>0.23.6</version>
+					<type>jar</type>
+					<scope>compile</scope>
+				</dependency>
+			</dependencies>
+		</profile>
+	</profiles>
+
+	<dependencies>
+		<dependency>
+			<groupId>edu.uci.ics.hyracks</groupId>
+			<artifactId>hyracks-api</artifactId>
+			<version>0.2.3-SNAPSHOT</version>
+			<type>jar</type>
+			<scope>compile</scope>
+		</dependency>
+	</dependencies>
+</project>
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
new file mode 100644
index 0000000..60ae5d3
--- /dev/null
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-0.23.1/src/main/java/edu/uci/ics/hyracks/hdfs/ContextFactory.java
@@ -0,0 +1,24 @@
+package edu.uci.ics.hyracks.hdfs;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.mapreduce.InputSplit;
+import org.apache.hadoop.mapreduce.TaskAttemptContext;
+import org.apache.hadoop.mapreduce.TaskAttemptID;
+import org.apache.hadoop.mapreduce.task.TaskAttemptContextImpl;
+
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+
+/**
+ * The wrapper to generate TaskTattemptContext
+ */
+public class ContextFactory {
+
+    public TaskAttemptContext createContext(Configuration conf, InputSplit split) throws HyracksDataException {
+        try {
+            return new TaskAttemptContextImpl(conf, new TaskAttemptID());
+        } catch (Exception e) {
+            throw new HyracksDataException(e);
+        }
+    }
+
+}
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
new file mode 100644
index 0000000..ded75f1
--- /dev/null
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-0.23.1/src/main/java/edu/uci/ics/hyracks/hdfs/MiniDFSClusterFactory.java
@@ -0,0 +1,20 @@
+package edu.uci.ics.hyracks.hdfs;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.hdfs.MiniDFSCluster;
+
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+
+public class MiniDFSClusterFactory {
+
+    public MiniDFSCluster getMiniDFSCluster(Configuration conf, int numberOfNC) throws HyracksDataException {
+        try {
+            MiniDFSCluster.Builder builder = new MiniDFSCluster.Builder(conf);
+            builder.numDataNodes(numberOfNC);
+            MiniDFSCluster dfsCluster = builder.build();
+            return dfsCluster;
+        } catch (Exception e) {
+            throw new HyracksDataException(e);
+        }
+    }
+}
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/pom.xml b/hyracks/hyracks-hdfs/hyracks-hdfs-core/pom.xml
new file mode 100644
index 0000000..fccfec4
--- /dev/null
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/pom.xml
@@ -0,0 +1,166 @@
+<?xml version="1.0"?>
+<project
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
+	xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+	<modelVersion>4.0.0</modelVersion>
+	<artifactId>hyracks-hdfs-core</artifactId>
+	<name>hyracks-hdfs-core</name>
+	<parent>
+		<artifactId>hyracks-hdfs</artifactId>
+		<groupId>edu.uci.ics.hyracks</groupId>
+		<version>0.2.3-SNAPSHOT</version>
+	</parent>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-compiler-plugin</artifactId>
+				<version>2.0.2</version>
+				<configuration>
+					<source>1.6</source>
+					<target>1.6</target>
+				</configuration>
+			</plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-surefire-plugin</artifactId>
+				<version>2.7.2</version>
+				<configuration>
+					<forkMode>pertest</forkMode>
+					<includes>
+						<include>**/*TestSuite.java</include>
+						<include>**/*Test.java</include>
+					</includes>
+				</configuration>
+			</plugin>
+			<plugin>
+				<artifactId>maven-clean-plugin</artifactId>
+				<version>2.5</version>
+				<configuration>
+					<filesets>
+						<fileset>
+							<directory>.</directory>
+							<includes>
+								<include>edu*</include>
+								<include>actual*</include>
+								<include>build*</include>
+								<include>expect*</include>
+								<include>ClusterController*</include>
+								<include>edu.uci.*</include>
+							</includes>
+						</fileset>
+					</filesets>
+				</configuration>
+			</plugin>
+		</plugins>
+	</build>
+
+	<profiles>
+		<profile>
+			<activation>
+				<activeByDefault>true</activeByDefault>
+			</activation>
+			<id>hadoop-0.20.2</id>
+			<dependencies>
+				<dependency>
+					<groupId>edu.uci.ics.hyracks</groupId>
+					<artifactId>hyracks-hdfs-0.20.2</artifactId>
+					<version>0.2.3-SNAPSHOT</version>
+					<type>jar</type>
+					<scope>compile</scope>
+				</dependency>
+			</dependencies>
+		</profile>
+		<profile>
+			<activation>
+				<activeByDefault>false</activeByDefault>
+			</activation>
+			<id>hadoop-1.0.4</id>
+			<dependencies>
+				<dependency>
+					<groupId>edu.uci.ics.hyracks</groupId>
+					<artifactId>hyracks-hdfs-0.20.2</artifactId>
+					<version>0.2.3-SNAPSHOT</version>
+					<type>jar</type>
+					<scope>compile</scope>
+				</dependency>
+			</dependencies>
+		</profile>
+		<profile>
+			<activation>
+				<activeByDefault>false</activeByDefault>
+			</activation>
+			<id>hadoop-0.23.1</id>
+			<dependencies>
+				<dependency>
+					<groupId>edu.uci.ics.hyracks</groupId>
+					<artifactId>hyracks-hdfs-0.23.1</artifactId>
+					<version>0.2.3-SNAPSHOT</version>
+					<type>jar</type>
+					<scope>compile</scope>
+				</dependency>
+			</dependencies>
+		</profile>
+		<profile>
+			<activation>
+				<activeByDefault>false</activeByDefault>
+			</activation>
+			<id>hadoop-0.23.6</id>
+			<dependencies>
+				<dependency>
+					<groupId>edu.uci.ics.hyracks</groupId>
+					<artifactId>hyracks-hdfs-0.23.1</artifactId>
+					<version>0.2.3-SNAPSHOT</version>
+					<type>jar</type>
+					<scope>compile</scope>
+				</dependency>
+			</dependencies>
+		</profile>
+	</profiles>
+
+	<dependencies>
+		<dependency>
+			<groupId>junit</groupId>
+			<artifactId>junit</artifactId>
+			<version>3.8.1</version>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>edu.uci.ics.hyracks</groupId>
+			<artifactId>hyracks-api</artifactId>
+			<version>0.2.3-SNAPSHOT</version>
+			<scope>compile</scope>
+		</dependency>
+		<dependency>
+			<groupId>edu.uci.ics.hyracks</groupId>
+			<artifactId>hyracks-dataflow-std</artifactId>
+			<version>0.2.3-SNAPSHOT</version>
+			<scope>compile</scope>
+		</dependency>
+		<dependency>
+			<groupId>edu.uci.ics.hyracks</groupId>
+			<artifactId>hyracks-dataflow-common</artifactId>
+			<version>0.2.3-SNAPSHOT</version>
+			<scope>compile</scope>
+		</dependency>
+		<dependency>
+			<groupId>edu.uci.ics.hyracks</groupId>
+			<artifactId>hyracks-control-cc</artifactId>
+			<version>0.2.3-SNAPSHOT</version>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>edu.uci.ics.hyracks</groupId>
+			<artifactId>hyracks-control-nc</artifactId>
+			<version>0.2.3-SNAPSHOT</version>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.apache.commons</groupId>
+			<artifactId>commons-io</artifactId>
+			<version>1.3.2</version>
+			<scope>test</scope>
+		</dependency>
+	</dependencies>
+</project>
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
new file mode 100644
index 0000000..5923e1e
--- /dev/null
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/api/IKeyValueParser.java
@@ -0,0 +1,50 @@
+/*
+ * 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.hdfs.api;
+
+import edu.uci.ics.hyracks.api.comm.IFrameWriter;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+
+/**
+ * Users need to implement this interface to use the HDFSReadOperatorDescriptor.
+ * 
+ * @param <K>
+ *            the key type
+ * @param <V>
+ *            the value type
+ */
+public interface IKeyValueParser<K, V> {
+
+    /**
+     * Parse a key-value pair returned by HDFS record reader to a tuple.
+     * when the parsers' internal buffer is full, it can flush the buffer to the writer
+     * 
+     * @param key
+     * @param value
+     * @param writer
+     * @throws HyracksDataException
+     */
+    public void parse(K key, V value, IFrameWriter writer) throws HyracksDataException;
+
+    /**
+     * Flush the residual tuples in the internal buffer to the writer.
+     * This method is called in the close() of HDFSReadOperatorDescriptor.
+     * 
+     * @param writer
+     * @throws HyracksDataException
+     */
+    public void flush(IFrameWriter writer) throws HyracksDataException;
+}
diff --git a/hyracks/hyracks-hdfs/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
similarity index 72%
rename from hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/api/IKeyValueParserFactory.java
rename to hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/api/IKeyValueParserFactory.java
index cc16087..6e943ad 100644
--- a/hyracks/hyracks-hdfs/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
@@ -19,8 +19,23 @@
 
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 
+/**
+ * Users need to implement this interface to use the HDFSReadOperatorDescriptor.
+ * 
+ * @param <K>
+ *            the key type
+ * @param <V>
+ *            the value type
+ */
 public interface IKeyValueParserFactory<K, V> extends Serializable {
 
+    /**
+     * This method creates a key-value parser.
+     * 
+     * @param ctx
+     *            the IHyracksTaskContext
+     * @return a key-value parser instance.
+     */
     public IKeyValueParser<K, V> createKeyValueParser(IHyracksTaskContext ctx);
 
 }
diff --git a/hyracks/hyracks-hdfs/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
similarity index 75%
rename from hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/api/ITupleWriter.java
rename to hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/api/ITupleWriter.java
index 05bb102..25b9523 100644
--- a/hyracks/hyracks-hdfs/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
@@ -20,8 +20,20 @@
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
 
+/**
+ * Users need to implement this interface to use the HDFSWriteOperatorDescriptor.
+ */
 public interface ITupleWriter {
 
+    /**
+     * Write the tuple to the DataOutput.
+     * 
+     * @param output
+     *            the DataOutput channel
+     * @param tuple
+     *            the tuple to write
+     * @throws HyracksDataException
+     */
     public void write(DataOutput output, ITupleReference tuple) throws HyracksDataException;
 
 }
diff --git a/hyracks/hyracks-hdfs/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
similarity index 84%
rename from hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/api/ITupleWriterFactory.java
rename to hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/api/ITupleWriterFactory.java
index 35313f9..839de8f 100644
--- a/hyracks/hyracks-hdfs/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
@@ -17,8 +17,14 @@
 
 import java.io.Serializable;
 
+/**
+ * Users need to implement this interface to use the HDFSWriteOperatorDescriptor.
+ */
 public interface ITupleWriterFactory extends Serializable {
 
+    /**
+     * @return a tuple writer instance
+     */
     public ITupleWriter getTupleWriter();
 
 }
diff --git a/hyracks/hyracks-hdfs/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
similarity index 100%
rename from hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/ConfFactory.java
rename to hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/ConfFactory.java
diff --git a/hyracks/hyracks-hdfs/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
similarity index 64%
rename from hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/HDFSReadOperatorDescriptor.java
rename to hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/HDFSReadOperatorDescriptor.java
index 50dac60..e924650 100644
--- a/hyracks/hyracks-hdfs/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
@@ -15,6 +15,8 @@
 
 package edu.uci.ics.hyracks.hdfs.dataflow;
 
+import java.util.Arrays;
+
 import org.apache.hadoop.mapred.InputFormat;
 import org.apache.hadoop.mapred.InputSplit;
 import org.apache.hadoop.mapred.JobConf;
@@ -33,15 +35,39 @@
 import edu.uci.ics.hyracks.hdfs.api.IKeyValueParser;
 import edu.uci.ics.hyracks.hdfs.api.IKeyValueParserFactory;
 
+/**
+ * The HDFS file read operator using the Hadoop old API.
+ * To use this operator, a user need to provide an IKeyValueParserFactory implementation which convert
+ * key-value pairs into tuples.
+ */
 @SuppressWarnings({ "deprecation", "rawtypes" })
 public class HDFSReadOperatorDescriptor extends AbstractSingleActivityOperatorDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private ConfFactory confFactory;
-    private InputSplitsFactory splitsFactory;
-    private String[] scheduledLocations;
-    private IKeyValueParserFactory tupleParserFactory;
+    private final ConfFactory confFactory;
+    private final InputSplitsFactory splitsFactory;
+    private final String[] scheduledLocations;
+    private final IKeyValueParserFactory tupleParserFactory;
+    private final boolean[] executed;
 
+    /**
+     * The constructor of HDFSReadOperatorDescriptor.
+     * 
+     * @param spec
+     *            the JobSpecification object
+     * @param rd
+     *            the output record descriptor
+     * @param conf
+     *            the Hadoop JobConf object, which contains the input format and the input paths
+     * @param splits
+     *            the array of FileSplits (HDFS chunks).
+     * @param scheduledLocations
+     *            the node controller names to scan the FileSplits, which is an one-to-one mapping. The String array
+     *            is obtained from the edu.cui.ics.hyracks.hdfs.scheduler.Scheduler.getLocationConstraints(InputSplits[]).
+     * @param tupleParserFactory
+     *            the ITupleParserFactory implementation instance.
+     * @throws HyracksException
+     */
     public HDFSReadOperatorDescriptor(JobSpecification spec, RecordDescriptor rd, JobConf conf, InputSplit[] splits,
             String[] scheduledLocations, IKeyValueParserFactory tupleParserFactory) throws HyracksException {
         super(spec, 0, 1);
@@ -52,6 +78,8 @@
             throw new HyracksException(e);
         }
         this.scheduledLocations = scheduledLocations;
+        this.executed = new boolean[scheduledLocations.length];
+        Arrays.fill(executed, false);
         this.tupleParserFactory = tupleParserFactory;
         this.recordDescriptors[0] = rd;
     }
@@ -61,7 +89,6 @@
             IRecordDescriptorProvider recordDescProvider, final int partition, final int nPartitions)
             throws HyracksDataException {
         final InputSplit[] inputSplits = splitsFactory.getSplits();
-        final JobConf conf = confFactory.getConf();
 
         return new AbstractUnaryOutputSourceOperatorNodePushable() {
             private String nodeName = ctx.getJobletContext().getApplicationContext().getNodeId();
@@ -69,7 +96,10 @@
             @SuppressWarnings("unchecked")
             @Override
             public void initialize() throws HyracksDataException {
+                ClassLoader ctxCL = Thread.currentThread().getContextClassLoader();
                 try {
+                    Thread.currentThread().setContextClassLoader(getClass().getClassLoader());
+                    JobConf conf = confFactory.getConf();
                     IKeyValueParser parser = tupleParserFactory.createKeyValueParser(ctx);
                     writer.open();
                     InputFormat inputFormat = conf.getInputFormat();
@@ -78,6 +108,21 @@
                          * read all the partitions scheduled to the current node
                          */
                         if (scheduledLocations[i].equals(nodeName)) {
+                            /**
+                             * pick an unread split to read
+                             * synchronize among simultaneous partitions in the same machine
+                             */
+                            synchronized (executed) {
+                                if (executed[i] == false) {
+                                    executed[i] = true;
+                                } else {
+                                    continue;
+                                }
+                            }
+
+                            /**
+                             * read the split
+                             */
                             RecordReader reader = inputFormat.getRecordReader(inputSplits[i], conf, Reporter.NULL);
                             Object key = reader.createKey();
                             Object value = reader.createValue();
@@ -90,6 +135,8 @@
                     writer.close();
                 } catch (Exception e) {
                     throw new HyracksDataException(e);
+                } finally {
+                    Thread.currentThread().setContextClassLoader(ctxCL);
                 }
             }
         };
diff --git a/hyracks/hyracks-hdfs/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
similarity index 80%
rename from hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/HDFSWriteOperatorDescriptor.java
rename to hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/HDFSWriteOperatorDescriptor.java
index 740f90e..ff97a29 100644
--- a/hyracks/hyracks-hdfs/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
@@ -38,6 +38,10 @@
 import edu.uci.ics.hyracks.hdfs.api.ITupleWriter;
 import edu.uci.ics.hyracks.hdfs.api.ITupleWriterFactory;
 
+/**
+ * The HDFS file write operator using the Hadoop old API.
+ * To use this operator, a user need to provide an ITupleWriterFactory.
+ */
 @SuppressWarnings("deprecation")
 public class HDFSWriteOperatorDescriptor extends AbstractSingleActivityOperatorDescriptor {
 
@@ -45,6 +49,17 @@
     private ConfFactory confFactory;
     private ITupleWriterFactory tupleWriterFactory;
 
+    /**
+     * The constructor of HDFSWriteOperatorDescriptor.
+     * 
+     * @param spec
+     *            the JobSpecification object
+     * @param conf
+     *            the Hadoop JobConf which contains the output path
+     * @param tupleWriterFactory
+     *            the ITupleWriterFactory implementation object
+     * @throws HyracksException
+     */
     public HDFSWriteOperatorDescriptor(JobSpecification spec, JobConf conf, ITupleWriterFactory tupleWriterFactory)
             throws HyracksException {
         super(spec, 1, 0);
@@ -56,20 +71,24 @@
     public IOperatorNodePushable createPushRuntime(final IHyracksTaskContext ctx,
             final IRecordDescriptorProvider recordDescProvider, final int partition, final int nPartitions)
             throws HyracksDataException {
-        final JobConf conf = confFactory.getConf();
-        final String outputDirPath = FileOutputFormat.getOutputPath(conf).toString();
 
         return new AbstractUnaryInputSinkOperatorNodePushable() {
 
-            private String fileName = outputDirPath + File.separator + "part-" + partition;
             private FSDataOutputStream dos;
             private RecordDescriptor inputRd = recordDescProvider.getInputRecordDescriptor(getActivityId(), 0);;
             private FrameTupleAccessor accessor = new FrameTupleAccessor(ctx.getFrameSize(), inputRd);
             private FrameTupleReference tuple = new FrameTupleReference();
             private ITupleWriter tupleWriter;
+            private ClassLoader ctxCL;
 
             @Override
             public void open() throws HyracksDataException {
+                ctxCL = Thread.currentThread().getContextClassLoader();
+                Thread.currentThread().setContextClassLoader(this.getClass().getClassLoader());
+                JobConf conf = confFactory.getConf();
+                String outputDirPath = FileOutputFormat.getOutputPath(conf).toString();
+                String fileName = outputDirPath + File.separator + "part-" + partition;
+
                 tupleWriter = tupleWriterFactory.getTupleWriter();
                 try {
                     FileSystem dfs = FileSystem.get(conf);
@@ -100,6 +119,8 @@
                     dos.close();
                 } catch (Exception e) {
                     throw new HyracksDataException(e);
+                } finally {
+                    Thread.currentThread().setContextClassLoader(ctxCL);
                 }
             }
 
diff --git a/hyracks/hyracks-hdfs/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
similarity index 100%
rename from hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/InputSplitsFactory.java
rename to hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/InputSplitsFactory.java
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
new file mode 100644
index 0000000..90c5977
--- /dev/null
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/lib/RawBinaryComparatorFactory.java
@@ -0,0 +1,32 @@
+package edu.uci.ics.hyracks.hdfs.lib;
+
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
+
+public class RawBinaryComparatorFactory implements IBinaryComparatorFactory {
+
+    private static final long serialVersionUID = 1L;
+    public static IBinaryComparatorFactory INSTANCE = new RawBinaryComparatorFactory();
+
+    private RawBinaryComparatorFactory() {
+    }
+
+    @Override
+    public IBinaryComparator createBinaryComparator() {
+        return new IBinaryComparator() {
+
+            @Override
+            public int compare(byte[] b1, int s1, int l1, byte[] b2, int s2, int l2) {
+                int commonLength = Math.min(l1, l2);
+                for (int i = 0; i < commonLength; i++) {
+                    if (b1[s1 + i] != b2[s2 + i]) {
+                        return b1[s1 + i] - b2[s2 + i];
+                    }
+                }
+                int difference = l1 - l2;
+                return difference == 0 ? 0 : (difference > 0 ? 1 : -1);
+            }
+
+        };
+    }
+}
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
new file mode 100644
index 0000000..7895fec
--- /dev/null
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/lib/RawBinaryHashFunctionFactory.java
@@ -0,0 +1,29 @@
+package edu.uci.ics.hyracks.hdfs.lib;
+
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunction;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunctionFactory;
+
+public class RawBinaryHashFunctionFactory implements IBinaryHashFunctionFactory {
+    private static final long serialVersionUID = 1L;
+
+    public static IBinaryHashFunctionFactory INSTANCE = new RawBinaryHashFunctionFactory();
+
+    private RawBinaryHashFunctionFactory() {
+    }
+
+    @Override
+    public IBinaryHashFunction createBinaryHashFunction() {
+
+        return new IBinaryHashFunction() {
+            @Override
+            public int hash(byte[] bytes, int offset, int length) {
+                int value = 1;
+                int end = offset + length;
+                for (int i = offset; i < end; i++)
+                    value = value * 31 + (int) bytes[i];
+                return value;
+            }
+        };
+    }
+
+}
\ No newline at end of file
diff --git a/hyracks/hyracks-hdfs/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
similarity index 100%
rename from hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/lib/TextKeyValueParserFactory.java
rename to hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/lib/TextKeyValueParserFactory.java
diff --git a/hyracks/hyracks-hdfs/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
similarity index 100%
rename from hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/lib/TextTupleWriterFactory.java
rename to hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/lib/TextTupleWriterFactory.java
diff --git a/hyracks/hyracks-hdfs/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
similarity index 97%
rename from hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/scheduler/Scheduler.java
rename to hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs/scheduler/Scheduler.java
index cb1db45..e7309d4 100644
--- a/hyracks/hyracks-hdfs/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
@@ -33,9 +33,10 @@
 import edu.uci.ics.hyracks.api.exceptions.HyracksException;
 
 /**
- * The scheduler conduct data-local scheduling for data on HDFS
+ * The scheduler conduct data-local scheduling for data reading on HDFS.
+ * This class works for Hadoop old API.
  */
-@SuppressWarnings({ "rawtypes", "deprecation" })
+@SuppressWarnings("deprecation")
 public class Scheduler {
 
     /** a list of NCs */
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
new file mode 100644
index 0000000..d843d27
--- /dev/null
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs2/dataflow/ConfFactory.java
@@ -0,0 +1,40 @@
+package edu.uci.ics.hyracks.hdfs2.dataflow;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.Serializable;
+
+import org.apache.hadoop.mapreduce.Job;
+
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+
+public class ConfFactory implements Serializable {
+    private static final long serialVersionUID = 1L;
+    private byte[] confBytes;
+
+    public ConfFactory(Job conf) throws HyracksDataException {
+        try {
+            ByteArrayOutputStream bos = new ByteArrayOutputStream();
+            DataOutputStream dos = new DataOutputStream(bos);
+            conf.getConfiguration().write(dos);
+            confBytes = bos.toByteArray();
+            dos.close();
+        } catch (Exception e) {
+            throw new HyracksDataException(e);
+        }
+    }
+
+    public Job getConf() throws HyracksDataException {
+        try {
+            Job conf = new Job();
+            DataInputStream dis = new DataInputStream(new ByteArrayInputStream(confBytes));
+            conf.getConfiguration().readFields(dis);
+            dis.close();
+            return conf;
+        } catch (Exception e) {
+            throw new HyracksDataException(e);
+        }
+    }
+}
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
new file mode 100644
index 0000000..14dc70c
--- /dev/null
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs2/dataflow/FileSplitsFactory.java
@@ -0,0 +1,106 @@
+/*
+ * 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.hdfs2.dataflow;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.io.Serializable;
+import java.lang.reflect.Constructor;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.hadoop.mapreduce.lib.input.FileSplit;
+
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+
+@SuppressWarnings("rawtypes")
+public class FileSplitsFactory implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+    private byte[] splitBytes;
+    private String splitClassName;
+
+    public FileSplitsFactory(List<FileSplit> splits) throws HyracksDataException {
+        splitBytes = splitsToBytes(splits);
+        if (splits.size() > 0) {
+            splitClassName = splits.get(0).getClass().getName();
+        }
+    }
+
+    public List<FileSplit> getSplits() throws HyracksDataException {
+        return bytesToSplits(splitBytes);
+    }
+
+    /**
+     * Convert splits to bytes.
+     * 
+     * @param splits
+     *            input splits
+     * @return bytes which serialize the splits
+     * @throws IOException
+     */
+    private byte[] splitsToBytes(List<FileSplit> splits) throws HyracksDataException {
+        try {
+            ByteArrayOutputStream bos = new ByteArrayOutputStream();
+            DataOutputStream dos = new DataOutputStream(bos);
+            dos.writeInt(splits.size());
+            int size = splits.size();
+            for (int i = 0; i < size; i++) {
+                splits.get(i).write(dos);
+            }
+            dos.close();
+            return bos.toByteArray();
+        } catch (Exception e) {
+            throw new HyracksDataException(e);
+        }
+    }
+
+    /**
+     * Covert bytes to splits.
+     * 
+     * @param bytes
+     * @return
+     * @throws HyracksDataException
+     */
+    private List<FileSplit> bytesToSplits(byte[] bytes) throws HyracksDataException {
+        try {
+            Class splitClass = Class.forName(splitClassName);
+            Constructor[] constructors = splitClass.getDeclaredConstructors();
+            Constructor defaultConstructor = null;
+            for (Constructor constructor : constructors) {
+                if (constructor.getParameterTypes().length == 0) {
+                    constructor.setAccessible(true);
+                    defaultConstructor = constructor;
+                }
+            }
+            ByteArrayInputStream bis = new ByteArrayInputStream(bytes);
+            DataInputStream dis = new DataInputStream(bis);
+            int size = dis.readInt();
+            List<FileSplit> splits = new ArrayList<FileSplit>();
+            for (int i = 0; i < size; i++) {
+                splits.add((FileSplit) defaultConstructor.newInstance());
+                splits.get(i).readFields(dis);
+            }
+            dis.close();
+            return splits;
+        } catch (Exception e) {
+            throw new HyracksDataException(e);
+        }
+    }
+}
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
new file mode 100644
index 0000000..90f5603
--- /dev/null
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs2/dataflow/HDFSReadOperatorDescriptor.java
@@ -0,0 +1,161 @@
+/*
+ * 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.hdfs2.dataflow;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+import org.apache.hadoop.mapreduce.InputFormat;
+import org.apache.hadoop.mapreduce.InputSplit;
+import org.apache.hadoop.mapreduce.Job;
+import org.apache.hadoop.mapreduce.RecordReader;
+import org.apache.hadoop.mapreduce.TaskAttemptContext;
+import org.apache.hadoop.mapreduce.lib.input.FileSplit;
+import org.apache.hadoop.util.ReflectionUtils;
+
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.api.dataflow.IOperatorNodePushable;
+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;
+import edu.uci.ics.hyracks.api.exceptions.HyracksException;
+import edu.uci.ics.hyracks.api.job.JobSpecification;
+import edu.uci.ics.hyracks.dataflow.std.base.AbstractSingleActivityOperatorDescriptor;
+import edu.uci.ics.hyracks.dataflow.std.base.AbstractUnaryOutputSourceOperatorNodePushable;
+import edu.uci.ics.hyracks.hdfs.ContextFactory;
+import edu.uci.ics.hyracks.hdfs.api.IKeyValueParser;
+import edu.uci.ics.hyracks.hdfs.api.IKeyValueParserFactory;
+
+/**
+ * The HDFS file read operator using the Hadoop new API. To use this operator, a
+ * user need to provide an IKeyValueParserFactory implementation which convert
+ * key-value pairs into tuples.
+ */
+@SuppressWarnings("rawtypes")
+public class HDFSReadOperatorDescriptor extends AbstractSingleActivityOperatorDescriptor {
+
+    private static final long serialVersionUID = 1L;
+    private final ConfFactory confFactory;
+    private final FileSplitsFactory splitsFactory;
+    private final String[] scheduledLocations;
+    private final IKeyValueParserFactory tupleParserFactory;
+    private final boolean[] executed;
+
+    /**
+     * The constructor of HDFSReadOperatorDescriptor.
+     * 
+     * @param spec
+     *            the JobSpecification object
+     * @param rd
+     *            the output record descriptor
+     * @param conf
+     *            the Hadoop JobConf object, which contains the input format and
+     *            the input paths
+     * @param splits
+     *            the array of FileSplits (HDFS chunks).
+     * @param scheduledLocations
+     *            the node controller names to scan the FileSplits, which is an
+     *            one-to-one mapping. The String array is obtained from the
+     *            edu.cui
+     *            .ics.hyracks.hdfs.scheduler.Scheduler.getLocationConstraints
+     *            (InputSplits[]).
+     * @param tupleParserFactory
+     *            the ITupleParserFactory implementation instance.
+     * @throws HyracksException
+     */
+    public HDFSReadOperatorDescriptor(JobSpecification spec, RecordDescriptor rd, Job conf, List<InputSplit> splits,
+            String[] scheduledLocations, IKeyValueParserFactory tupleParserFactory) throws HyracksException {
+        super(spec, 0, 1);
+        try {
+            List<FileSplit> fileSplits = new ArrayList<FileSplit>();
+            for (int i = 0; i < splits.size(); i++) {
+                fileSplits.add((FileSplit) splits.get(i));
+            }
+            this.splitsFactory = new FileSplitsFactory(fileSplits);
+            this.confFactory = new ConfFactory(conf);
+        } catch (Exception e) {
+            throw new HyracksException(e);
+        }
+        this.scheduledLocations = scheduledLocations;
+        this.executed = new boolean[scheduledLocations.length];
+        Arrays.fill(executed, false);
+        this.tupleParserFactory = tupleParserFactory;
+        this.recordDescriptors[0] = rd;
+    }
+
+    @Override
+    public IOperatorNodePushable createPushRuntime(final IHyracksTaskContext ctx,
+            IRecordDescriptorProvider recordDescProvider, final int partition, final int nPartitions)
+            throws HyracksDataException {
+        final List<FileSplit> inputSplits = splitsFactory.getSplits();
+
+        return new AbstractUnaryOutputSourceOperatorNodePushable() {
+            private String nodeName = ctx.getJobletContext().getApplicationContext().getNodeId();
+            private ContextFactory ctxFactory = new ContextFactory();
+
+            @SuppressWarnings("unchecked")
+            @Override
+            public void initialize() throws HyracksDataException {
+                ClassLoader ctxCL = Thread.currentThread().getContextClassLoader();
+                try {
+                    Thread.currentThread().setContextClassLoader(this.getClass().getClassLoader());
+                    Job job = confFactory.getConf();
+                    IKeyValueParser parser = tupleParserFactory.createKeyValueParser(ctx);
+                    writer.open();
+                    InputFormat inputFormat = ReflectionUtils.newInstance(job.getInputFormatClass(),
+                            job.getConfiguration());
+                    int size = inputSplits.size();
+                    for (int i = 0; i < size; i++) {
+                        /**
+                         * read all the partitions scheduled to the current node
+                         */
+                        if (scheduledLocations[i].equals(nodeName)) {
+                            /**
+                             * pick an unread split to read synchronize among
+                             * simultaneous partitions in the same machine
+                             */
+                            synchronized (executed) {
+                                if (executed[i] == false) {
+                                    executed[i] = true;
+                                } else {
+                                    continue;
+                                }
+                            }
+
+                            /**
+                             * read the split
+                             */
+                            TaskAttemptContext context = ctxFactory.createContext(job.getConfiguration(),
+                                    inputSplits.get(i));
+                            RecordReader reader = inputFormat.createRecordReader(inputSplits.get(i), context);
+                            reader.initialize(inputSplits.get(i), context);
+                            while (reader.nextKeyValue() == true) {
+                                parser.parse(reader.getCurrentKey(), reader.getCurrentValue(), writer);
+                            }
+                        }
+                    }
+                    parser.flush(writer);
+                    writer.close();
+                } catch (Exception e) {
+                    throw new HyracksDataException(e);
+                } finally {
+                    Thread.currentThread().setContextClassLoader(ctxCL);
+                }
+            }
+        };
+    }
+}
diff --git a/hyracks/hyracks-hdfs/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/hdfs2/dataflow/HDFSWriteOperatorDescriptor.java
similarity index 75%
copy from hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/HDFSWriteOperatorDescriptor.java
copy to hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs2/dataflow/HDFSWriteOperatorDescriptor.java
index 740f90e..390a7b5 100644
--- a/hyracks/hyracks-hdfs/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/hdfs2/dataflow/HDFSWriteOperatorDescriptor.java
@@ -13,7 +13,7 @@
  * limitations under the License.
  */
 
-package edu.uci.ics.hyracks.hdfs.dataflow;
+package edu.uci.ics.hyracks.hdfs2.dataflow;
 
 import java.io.File;
 import java.nio.ByteBuffer;
@@ -21,8 +21,8 @@
 import org.apache.hadoop.fs.FSDataOutputStream;
 import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.Path;
-import org.apache.hadoop.mapred.FileOutputFormat;
-import org.apache.hadoop.mapred.JobConf;
+import org.apache.hadoop.mapreduce.Job;
+import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;
 
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 import edu.uci.ics.hyracks.api.dataflow.IOperatorNodePushable;
@@ -38,14 +38,28 @@
 import edu.uci.ics.hyracks.hdfs.api.ITupleWriter;
 import edu.uci.ics.hyracks.hdfs.api.ITupleWriterFactory;
 
-@SuppressWarnings("deprecation")
+/**
+ * The HDFS file write operator using the Hadoop new API.
+ * To use this operator, a user need to provide an ITupleWriterFactory.
+ */
 public class HDFSWriteOperatorDescriptor extends AbstractSingleActivityOperatorDescriptor {
 
     private static final long serialVersionUID = 1L;
     private ConfFactory confFactory;
     private ITupleWriterFactory tupleWriterFactory;
 
-    public HDFSWriteOperatorDescriptor(JobSpecification spec, JobConf conf, ITupleWriterFactory tupleWriterFactory)
+    /**
+     * The constructor of HDFSWriteOperatorDescriptor.
+     * 
+     * @param spec
+     *            the JobSpecification object
+     * @param conf
+     *            the Hadoop JobConf which contains the output path
+     * @param tupleWriterFactory
+     *            the ITupleWriterFactory implementation object
+     * @throws HyracksException
+     */
+    public HDFSWriteOperatorDescriptor(JobSpecification spec, Job conf, ITupleWriterFactory tupleWriterFactory)
             throws HyracksException {
         super(spec, 1, 0);
         this.confFactory = new ConfFactory(conf);
@@ -56,23 +70,27 @@
     public IOperatorNodePushable createPushRuntime(final IHyracksTaskContext ctx,
             final IRecordDescriptorProvider recordDescProvider, final int partition, final int nPartitions)
             throws HyracksDataException {
-        final JobConf conf = confFactory.getConf();
-        final String outputDirPath = FileOutputFormat.getOutputPath(conf).toString();
 
         return new AbstractUnaryInputSinkOperatorNodePushable() {
 
-            private String fileName = outputDirPath + File.separator + "part-" + partition;
             private FSDataOutputStream dos;
             private RecordDescriptor inputRd = recordDescProvider.getInputRecordDescriptor(getActivityId(), 0);;
             private FrameTupleAccessor accessor = new FrameTupleAccessor(ctx.getFrameSize(), inputRd);
             private FrameTupleReference tuple = new FrameTupleReference();
             private ITupleWriter tupleWriter;
+            private ClassLoader ctxCL;
 
             @Override
             public void open() throws HyracksDataException {
+                ctxCL = Thread.currentThread().getContextClassLoader();
+                Thread.currentThread().setContextClassLoader(this.getClass().getClassLoader());
+                Job conf = confFactory.getConf();
+                String outputPath = FileOutputFormat.getOutputPath(conf).toString();
+                String fileName = outputPath + File.separator + "part-" + partition;
+
                 tupleWriter = tupleWriterFactory.getTupleWriter();
                 try {
-                    FileSystem dfs = FileSystem.get(conf);
+                    FileSystem dfs = FileSystem.get(conf.getConfiguration());
                     dos = dfs.create(new Path(fileName), true);
                 } catch (Exception e) {
                     throw new HyracksDataException(e);
@@ -100,6 +118,8 @@
                     dos.close();
                 } catch (Exception e) {
                     throw new HyracksDataException(e);
+                } finally {
+                    Thread.currentThread().setContextClassLoader(ctxCL);
                 }
             }
 
diff --git a/hyracks/hyracks-hdfs/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/hdfs2/scheduler/Scheduler.java
similarity index 90%
copy from hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/scheduler/Scheduler.java
copy to hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs2/scheduler/Scheduler.java
index cb1db45..3445d68 100644
--- a/hyracks/hyracks-hdfs/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/hdfs2/scheduler/Scheduler.java
@@ -13,9 +13,8 @@
  * limitations under the License.
  */
 
-package edu.uci.ics.hyracks.hdfs.scheduler;
+package edu.uci.ics.hyracks.hdfs2.scheduler;
 
-import java.io.IOException;
 import java.net.InetAddress;
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -24,7 +23,7 @@
 import java.util.Map;
 import java.util.Random;
 
-import org.apache.hadoop.mapred.InputSplit;
+import org.apache.hadoop.mapreduce.InputSplit;
 
 import edu.uci.ics.hyracks.api.client.HyracksConnection;
 import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
@@ -33,9 +32,9 @@
 import edu.uci.ics.hyracks.api.exceptions.HyracksException;
 
 /**
- * The scheduler conduct data-local scheduling for data on HDFS
+ * The scheduler conduct data-local scheduling for data reading on HDFS.
+ * This class works for Hadoop new API.
  */
-@SuppressWarnings({ "rawtypes", "deprecation" })
 public class Scheduler {
 
     /** a list of NCs */
@@ -72,23 +71,23 @@
      * 
      * @throws HyracksDataException
      */
-    public String[] getLocationConstraints(InputSplit[] splits) throws HyracksException {
+    public String[] getLocationConstraints(List<InputSplit> splits) throws HyracksException {
         int[] capacity = new int[NCs.length];
         Arrays.fill(capacity, 0);
-        String[] locations = new String[splits.length];
-        int slots = splits.length % capacity.length == 0 ? (splits.length / capacity.length) : (splits.length
+        String[] locations = new String[splits.size()];
+        int slots = splits.size() % capacity.length == 0 ? (splits.size() / capacity.length) : (splits.size()
                 / capacity.length + 1);
 
         try {
             Random random = new Random(System.currentTimeMillis());
-            boolean scheduled[] = new boolean[splits.length];
+            boolean scheduled[] = new boolean[splits.size()];
             Arrays.fill(scheduled, false);
 
-            for (int i = 0; i < splits.length; i++) {
+            for (int i = 0; i < splits.size(); i++) {
                 /**
                  * get the location of all the splits
                  */
-                String[] loc = splits[i].getLocations();
+                String[] loc = splits.get(i).getLocations();
                 if (loc.length > 0) {
                     for (int j = 0; j < loc.length; j++) {
                         /**
@@ -145,7 +144,7 @@
             /**
              * schedule no-local file reads
              */
-            for (int i = 0; i < splits.length; i++) {
+            for (int i = 0; i < splits.size(); i++) {
                 // if there is no data-local NC choice, choose a random one
                 if (!scheduled[i]) {
                     locations[i] = NCs[currentAvailableNC];
@@ -164,7 +163,7 @@
                 }
             }
             return locations;
-        } catch (IOException e) {
+        } catch (Exception e) {
             throw new HyracksException(e);
         }
     }
diff --git a/hyracks/hyracks-hdfs/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
similarity index 82%
rename from hyracks/hyracks-hdfs/src/test/java/edu/uci/ics/hyracks/hdfs/dataflow/DataflowTest.java
rename to hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/java/edu/uci/ics/hyracks/hdfs/dataflow/DataflowTest.java
index bf94cbd..affe1347 100644
--- a/hyracks/hyracks-hdfs/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
@@ -37,12 +37,19 @@
 import edu.uci.ics.hyracks.api.client.HyracksConnection;
 import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
 import edu.uci.ics.hyracks.api.constraints.PartitionConstraintHelper;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunctionFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
 import edu.uci.ics.hyracks.api.job.JobId;
 import edu.uci.ics.hyracks.api.job.JobSpecification;
 import edu.uci.ics.hyracks.dataflow.common.data.marshalling.UTF8StringSerializerDeserializer;
+import edu.uci.ics.hyracks.dataflow.common.data.partition.FieldHashPartitionComputerFactory;
+import edu.uci.ics.hyracks.dataflow.std.connectors.MToNPartitioningMergingConnectorDescriptor;
 import edu.uci.ics.hyracks.dataflow.std.connectors.OneToOneConnectorDescriptor;
+import edu.uci.ics.hyracks.dataflow.std.sort.ExternalSortOperatorDescriptor;
+import edu.uci.ics.hyracks.hdfs.lib.RawBinaryComparatorFactory;
+import edu.uci.ics.hyracks.hdfs.lib.RawBinaryHashFunctionFactory;
 import edu.uci.ics.hyracks.hdfs.lib.TextKeyValueParserFactory;
 import edu.uci.ics.hyracks.hdfs.lib.TextTupleWriterFactory;
 import edu.uci.ics.hyracks.hdfs.scheduler.Scheduler;
@@ -50,7 +57,8 @@
 import edu.uci.ics.hyracks.hdfs.utils.TestUtils;
 
 /**
- * Test the edu.uci.ics.hyracks.hdfs.dataflow package
+ * Test the edu.uci.ics.hyracks.hdfs.dataflow package,
+ * the operators for the Hadoop old API.
  */
 @SuppressWarnings({ "deprecation" })
 public class DataflowTest extends TestCase {
@@ -124,23 +132,32 @@
         conf.setInputFormat(TextInputFormat.class);
 
         Scheduler scheduler = new Scheduler(HyracksUtils.CC_HOST, HyracksUtils.TEST_HYRACKS_CC_CLIENT_PORT);
-        InputSplit[] splits = conf.getInputFormat().getSplits(conf, numberOfNC);
+        InputSplit[] splits = conf.getInputFormat().getSplits(conf, numberOfNC * 4);
 
         String[] readSchedule = scheduler.getLocationConstraints(splits);
         JobSpecification jobSpec = new JobSpecification();
         RecordDescriptor recordDesc = new RecordDescriptor(
                 new ISerializerDeserializer[] { UTF8StringSerializerDeserializer.INSTANCE });
 
-        String[] locations = new String[] { HyracksUtils.NC1_ID, HyracksUtils.NC2_ID };
+        String[] locations = new String[] { HyracksUtils.NC1_ID, HyracksUtils.NC1_ID, HyracksUtils.NC2_ID,
+                HyracksUtils.NC2_ID };
         HDFSReadOperatorDescriptor readOperator = new HDFSReadOperatorDescriptor(jobSpec, recordDesc, conf, splits,
                 readSchedule, new TextKeyValueParserFactory());
         PartitionConstraintHelper.addAbsoluteLocationConstraint(jobSpec, readOperator, locations);
 
+        ExternalSortOperatorDescriptor sortOperator = new ExternalSortOperatorDescriptor(jobSpec, 10, new int[] { 0 },
+                new IBinaryComparatorFactory[] { RawBinaryComparatorFactory.INSTANCE }, recordDesc);
+        PartitionConstraintHelper.addAbsoluteLocationConstraint(jobSpec, sortOperator, locations);
+
         HDFSWriteOperatorDescriptor writeOperator = new HDFSWriteOperatorDescriptor(jobSpec, conf,
                 new TextTupleWriterFactory());
-        PartitionConstraintHelper.addAbsoluteLocationConstraint(jobSpec, writeOperator, locations);
+        PartitionConstraintHelper.addAbsoluteLocationConstraint(jobSpec, writeOperator, HyracksUtils.NC1_ID);
 
-        jobSpec.connect(new OneToOneConnectorDescriptor(jobSpec), readOperator, 0, writeOperator, 0);
+        jobSpec.connect(new OneToOneConnectorDescriptor(jobSpec), readOperator, 0, sortOperator, 0);
+        jobSpec.connect(new MToNPartitioningMergingConnectorDescriptor(jobSpec, new FieldHashPartitionComputerFactory(
+                new int[] { 0 }, new IBinaryHashFunctionFactory[] { RawBinaryHashFunctionFactory.INSTANCE }),
+                new int[] { 0 }, new IBinaryComparatorFactory[] { RawBinaryComparatorFactory.INSTANCE }), sortOperator,
+                0, writeOperator, 0);
         jobSpec.addRoot(writeOperator);
 
         IHyracksClientConnection client = new HyracksConnection(HyracksUtils.CC_HOST,
@@ -165,8 +182,6 @@
 
         TestUtils.compareWithResult(new File(EXPECTED_RESULT_PATH + File.separator + "part-0"), new File(
                 ACTUAL_RESULT_DIR + File.separator + "customer_result" + File.separator + "part-0"));
-        TestUtils.compareWithResult(new File(EXPECTED_RESULT_PATH + File.separator + "part-1"), new File(
-                ACTUAL_RESULT_DIR + File.separator + "customer_result" + File.separator + "part-1"));
         return true;
     }
 
diff --git a/hyracks/hyracks-hdfs/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
similarity index 100%
rename from hyracks/hyracks-hdfs/src/test/java/edu/uci/ics/hyracks/hdfs/scheduler/SchedulerTest.java
rename to hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/java/edu/uci/ics/hyracks/hdfs/scheduler/SchedulerTest.java
diff --git a/hyracks/hyracks-hdfs/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
similarity index 100%
rename from hyracks/hyracks-hdfs/src/test/java/edu/uci/ics/hyracks/hdfs/utils/HyracksUtils.java
rename to hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/java/edu/uci/ics/hyracks/hdfs/utils/HyracksUtils.java
diff --git a/hyracks/hyracks-hdfs/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
similarity index 100%
rename from hyracks/hyracks-hdfs/src/test/java/edu/uci/ics/hyracks/hdfs/utils/TestUtils.java
rename to hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/java/edu/uci/ics/hyracks/hdfs/utils/TestUtils.java
diff --git a/hyracks/hyracks-hdfs/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/hdfs2/dataflow/DataflowTest.java
similarity index 67%
copy from hyracks/hyracks-hdfs/src/test/java/edu/uci/ics/hyracks/hdfs/dataflow/DataflowTest.java
copy to hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/java/edu/uci/ics/hyracks/hdfs2/dataflow/DataflowTest.java
index bf94cbd..c2892e9 100644
--- a/hyracks/hyracks-hdfs/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/hdfs2/dataflow/DataflowTest.java
@@ -13,12 +13,13 @@
  * limitations under the License.
  */
 
-package edu.uci.ics.hyracks.hdfs.dataflow;
+package edu.uci.ics.hyracks.hdfs2.dataflow;
 
 import java.io.DataOutputStream;
 import java.io.File;
 import java.io.FileOutputStream;
 import java.io.IOException;
+import java.util.List;
 
 import junit.framework.Assert;
 import junit.framework.TestCase;
@@ -28,31 +29,41 @@
 import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.hdfs.MiniDFSCluster;
-import org.apache.hadoop.mapred.FileInputFormat;
-import org.apache.hadoop.mapred.FileOutputFormat;
-import org.apache.hadoop.mapred.InputSplit;
-import org.apache.hadoop.mapred.JobConf;
-import org.apache.hadoop.mapred.TextInputFormat;
+import org.apache.hadoop.mapreduce.InputFormat;
+import org.apache.hadoop.mapreduce.InputSplit;
+import org.apache.hadoop.mapreduce.Job;
+import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
+import org.apache.hadoop.mapreduce.lib.input.TextInputFormat;
+import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;
+import org.apache.hadoop.util.ReflectionUtils;
 
 import edu.uci.ics.hyracks.api.client.HyracksConnection;
 import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
 import edu.uci.ics.hyracks.api.constraints.PartitionConstraintHelper;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunctionFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
 import edu.uci.ics.hyracks.api.job.JobId;
 import edu.uci.ics.hyracks.api.job.JobSpecification;
 import edu.uci.ics.hyracks.dataflow.common.data.marshalling.UTF8StringSerializerDeserializer;
+import edu.uci.ics.hyracks.dataflow.common.data.partition.FieldHashPartitionComputerFactory;
+import edu.uci.ics.hyracks.dataflow.std.connectors.MToNPartitioningMergingConnectorDescriptor;
 import edu.uci.ics.hyracks.dataflow.std.connectors.OneToOneConnectorDescriptor;
+import edu.uci.ics.hyracks.dataflow.std.sort.ExternalSortOperatorDescriptor;
+import edu.uci.ics.hyracks.hdfs.MiniDFSClusterFactory;
+import edu.uci.ics.hyracks.hdfs.lib.RawBinaryComparatorFactory;
+import edu.uci.ics.hyracks.hdfs.lib.RawBinaryHashFunctionFactory;
 import edu.uci.ics.hyracks.hdfs.lib.TextKeyValueParserFactory;
 import edu.uci.ics.hyracks.hdfs.lib.TextTupleWriterFactory;
-import edu.uci.ics.hyracks.hdfs.scheduler.Scheduler;
 import edu.uci.ics.hyracks.hdfs.utils.HyracksUtils;
 import edu.uci.ics.hyracks.hdfs.utils.TestUtils;
+import edu.uci.ics.hyracks.hdfs2.scheduler.Scheduler;
 
 /**
- * Test the edu.uci.ics.hyracks.hdfs.dataflow package
+ * Test the edu.uci.ics.hyracks.hdfs2.dataflow package,
+ * the operators for the Hadoop new API.
  */
-@SuppressWarnings({ "deprecation" })
 public class DataflowTest extends TestCase {
 
     private static final String ACTUAL_RESULT_DIR = "actual";
@@ -65,12 +76,14 @@
 
     private static final String HADOOP_CONF_PATH = ACTUAL_RESULT_DIR + File.separator + "conf.xml";
     private MiniDFSCluster dfsCluster;
+    private MiniDFSClusterFactory dfsClusterFactory = new MiniDFSClusterFactory();
 
-    private JobConf conf = new JobConf();
+    private Job conf;
     private int numberOfNC = 2;
 
     @Override
     public void setUp() throws Exception {
+        conf = new Job();
         cleanupStores();
         HyracksUtils.init();
         FileUtils.forceMkdir(new File(ACTUAL_RESULT_DIR));
@@ -91,15 +104,15 @@
      * @throws IOException
      */
     private void startHDFS() throws IOException {
-        conf.addResource(new Path(PATH_TO_HADOOP_CONF + "/core-site.xml"));
-        conf.addResource(new Path(PATH_TO_HADOOP_CONF + "/mapred-site.xml"));
-        conf.addResource(new Path(PATH_TO_HADOOP_CONF + "/hdfs-site.xml"));
+        conf.getConfiguration().addResource(new Path(PATH_TO_HADOOP_CONF + "/core-site.xml"));
+        conf.getConfiguration().addResource(new Path(PATH_TO_HADOOP_CONF + "/mapred-site.xml"));
+        conf.getConfiguration().addResource(new Path(PATH_TO_HADOOP_CONF + "/hdfs-site.xml"));
 
         FileSystem lfs = FileSystem.getLocal(new Configuration());
         lfs.delete(new Path("build"), true);
         System.setProperty("hadoop.log.dir", "logs");
-        dfsCluster = new MiniDFSCluster(conf, numberOfNC, true, null);
-        FileSystem dfs = FileSystem.get(conf);
+        dfsCluster = dfsClusterFactory.getMiniDFSCluster(conf.getConfiguration(), numberOfNC);
+        FileSystem dfs = FileSystem.get(conf.getConfiguration());
         Path src = new Path(DATA_PATH);
         Path dest = new Path(HDFS_INPUT_PATH);
         Path result = new Path(HDFS_OUTPUT_PATH);
@@ -108,7 +121,7 @@
         dfs.copyFromLocalFile(src, dest);
 
         DataOutputStream confOutput = new DataOutputStream(new FileOutputStream(new File(HADOOP_CONF_PATH)));
-        conf.writeXml(confOutput);
+        conf.getConfiguration().writeXml(confOutput);
         confOutput.flush();
         confOutput.close();
     }
@@ -118,29 +131,40 @@
      * 
      * @throws Exception
      */
+    @SuppressWarnings({ "rawtypes", "unchecked" })
     public void testHDFSReadWriteOperators() throws Exception {
         FileInputFormat.setInputPaths(conf, HDFS_INPUT_PATH);
         FileOutputFormat.setOutputPath(conf, new Path(HDFS_OUTPUT_PATH));
-        conf.setInputFormat(TextInputFormat.class);
+        conf.setInputFormatClass(TextInputFormat.class);
 
         Scheduler scheduler = new Scheduler(HyracksUtils.CC_HOST, HyracksUtils.TEST_HYRACKS_CC_CLIENT_PORT);
-        InputSplit[] splits = conf.getInputFormat().getSplits(conf, numberOfNC);
+        InputFormat inputFormat = ReflectionUtils.newInstance(conf.getInputFormatClass(), conf.getConfiguration());
+        List<InputSplit> splits = inputFormat.getSplits(conf);
 
         String[] readSchedule = scheduler.getLocationConstraints(splits);
         JobSpecification jobSpec = new JobSpecification();
         RecordDescriptor recordDesc = new RecordDescriptor(
                 new ISerializerDeserializer[] { UTF8StringSerializerDeserializer.INSTANCE });
 
-        String[] locations = new String[] { HyracksUtils.NC1_ID, HyracksUtils.NC2_ID };
+        String[] locations = new String[] { HyracksUtils.NC1_ID, HyracksUtils.NC1_ID, HyracksUtils.NC2_ID,
+                HyracksUtils.NC2_ID };
         HDFSReadOperatorDescriptor readOperator = new HDFSReadOperatorDescriptor(jobSpec, recordDesc, conf, splits,
                 readSchedule, new TextKeyValueParserFactory());
         PartitionConstraintHelper.addAbsoluteLocationConstraint(jobSpec, readOperator, locations);
 
+        ExternalSortOperatorDescriptor sortOperator = new ExternalSortOperatorDescriptor(jobSpec, 10, new int[] { 0 },
+                new IBinaryComparatorFactory[] { RawBinaryComparatorFactory.INSTANCE }, recordDesc);
+        PartitionConstraintHelper.addAbsoluteLocationConstraint(jobSpec, sortOperator, locations);
+
         HDFSWriteOperatorDescriptor writeOperator = new HDFSWriteOperatorDescriptor(jobSpec, conf,
                 new TextTupleWriterFactory());
-        PartitionConstraintHelper.addAbsoluteLocationConstraint(jobSpec, writeOperator, locations);
+        PartitionConstraintHelper.addAbsoluteLocationConstraint(jobSpec, writeOperator, HyracksUtils.NC1_ID);
 
-        jobSpec.connect(new OneToOneConnectorDescriptor(jobSpec), readOperator, 0, writeOperator, 0);
+        jobSpec.connect(new OneToOneConnectorDescriptor(jobSpec), readOperator, 0, sortOperator, 0);
+        jobSpec.connect(new MToNPartitioningMergingConnectorDescriptor(jobSpec, new FieldHashPartitionComputerFactory(
+                new int[] { 0 }, new IBinaryHashFunctionFactory[] { RawBinaryHashFunctionFactory.INSTANCE }),
+                new int[] { 0 }, new IBinaryComparatorFactory[] { RawBinaryComparatorFactory.INSTANCE }), sortOperator,
+                0, writeOperator, 0);
         jobSpec.addRoot(writeOperator);
 
         IHyracksClientConnection client = new HyracksConnection(HyracksUtils.CC_HOST,
@@ -158,15 +182,13 @@
      * @throws Exception
      */
     private boolean checkResults() throws Exception {
-        FileSystem dfs = FileSystem.get(conf);
+        FileSystem dfs = FileSystem.get(conf.getConfiguration());
         Path result = new Path(HDFS_OUTPUT_PATH);
         Path actual = new Path(ACTUAL_RESULT_DIR);
         dfs.copyToLocalFile(result, actual);
 
         TestUtils.compareWithResult(new File(EXPECTED_RESULT_PATH + File.separator + "part-0"), new File(
                 ACTUAL_RESULT_DIR + File.separator + "customer_result" + File.separator + "part-0"));
-        TestUtils.compareWithResult(new File(EXPECTED_RESULT_PATH + File.separator + "part-1"), new File(
-                ACTUAL_RESULT_DIR + File.separator + "customer_result" + File.separator + "part-1"));
         return true;
     }
 
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
new file mode 100644
index 0000000..ea2af13
--- /dev/null
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/java/edu/uci/ics/hyracks/hdfs2/scheduler/SchedulerTest.java
@@ -0,0 +1,215 @@
+/*
+ * 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.hdfs2.scheduler;
+
+import java.net.InetAddress;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import junit.framework.Assert;
+import junit.framework.TestCase;
+
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.mapreduce.InputSplit;
+import org.apache.hadoop.mapreduce.lib.input.FileSplit;
+
+import edu.uci.ics.hyracks.api.client.NodeControllerInfo;
+import edu.uci.ics.hyracks.api.client.NodeStatus;
+import edu.uci.ics.hyracks.api.comm.NetworkAddress;
+
+/**
+ * Test case for the new HDFS API scheduler
+ * 
+ */
+public class SchedulerTest extends TestCase {
+
+    /**
+     * Test the scheduler for the case when the Hyracks cluster is the HDFS cluster
+     * 
+     * @throws Exception
+     */
+    public void testSchedulerSimple() throws Exception {
+        Map<String, NodeControllerInfo> ncNameToNcInfos = new HashMap<String, NodeControllerInfo>();
+        ncNameToNcInfos.put("nc1", new NodeControllerInfo("nc1", NodeStatus.ALIVE, new NetworkAddress(InetAddress
+                .getByName("10.0.0.1").getAddress(), 5099)));
+        ncNameToNcInfos.put("nc2", new NodeControllerInfo("nc2", NodeStatus.ALIVE, new NetworkAddress(InetAddress
+                .getByName("10.0.0.2").getAddress(), 5099)));
+        ncNameToNcInfos.put("nc3", new NodeControllerInfo("nc3", NodeStatus.ALIVE, new NetworkAddress(InetAddress
+                .getByName("10.0.0.3").getAddress(), 5099)));
+        ncNameToNcInfos.put("nc4", new NodeControllerInfo("nc4", NodeStatus.ALIVE, new NetworkAddress(InetAddress
+                .getByName("10.0.0.4").getAddress(), 5099)));
+        ncNameToNcInfos.put("nc5", new NodeControllerInfo("nc5", NodeStatus.ALIVE, new NetworkAddress(InetAddress
+                .getByName("10.0.0.5").getAddress(), 5099)));
+        ncNameToNcInfos.put("nc6", new NodeControllerInfo("nc6", NodeStatus.ALIVE, new NetworkAddress(InetAddress
+                .getByName("10.0.0.6").getAddress(), 5099)));
+
+        List<InputSplit> fileSplits = new ArrayList<InputSplit>();
+        fileSplits.add(new FileSplit(new Path("part-1"), 0, 0, new String[] { "10.0.0.1", "10.0.0.2", "10.0.0.3" }));
+        fileSplits.add(new FileSplit(new Path("part-2"), 0, 0, new String[] { "10.0.0.3", "10.0.0.4", "10.0.0.5" }));
+        fileSplits.add(new FileSplit(new Path("part-3"), 0, 0, new String[] { "10.0.0.4", "10.0.0.5", "10.0.0.6" }));
+        fileSplits.add(new FileSplit(new Path("part-4"), 0, 0, new String[] { "10.0.0.2", "10.0.0.1", "10.0.0.6" }));
+        fileSplits.add(new FileSplit(new Path("part-5"), 0, 0, new String[] { "10.0.0.3", "10.0.0.4", "10.0.0.5" }));
+        fileSplits.add(new FileSplit(new Path("part-6"), 0, 0, new String[] { "10.0.0.2", "10.0.0.3", "10.0.0.5" }));
+
+        Scheduler scheduler = new Scheduler(ncNameToNcInfos);
+        String[] locationConstraints = scheduler.getLocationConstraints(fileSplits);
+
+        String[] expectedResults = new String[] { "nc1", "nc3", "nc4", "nc2", "nc5", "nc6" };
+
+        for (int i = 0; i < locationConstraints.length; i++) {
+            Assert.assertEquals(locationConstraints[i], expectedResults[i]);
+        }
+    }
+
+    /**
+     * Test the case where the HDFS cluster is a larger than the Hyracks cluster
+     * 
+     * @throws Exception
+     */
+    public void testSchedulerLargerHDFS() throws Exception {
+        Map<String, NodeControllerInfo> ncNameToNcInfos = new HashMap<String, NodeControllerInfo>();
+        ncNameToNcInfos.put("nc1", new NodeControllerInfo("nc1", NodeStatus.ALIVE, new NetworkAddress(InetAddress
+                .getByName("10.0.0.1").getAddress(), 5099)));
+        ncNameToNcInfos.put("nc2", new NodeControllerInfo("nc2", NodeStatus.ALIVE, new NetworkAddress(InetAddress
+                .getByName("10.0.0.2").getAddress(), 5099)));
+        ncNameToNcInfos.put("nc3", new NodeControllerInfo("nc3", NodeStatus.ALIVE, new NetworkAddress(InetAddress
+                .getByName("10.0.0.3").getAddress(), 5099)));
+        ncNameToNcInfos.put("nc4", new NodeControllerInfo("nc4", NodeStatus.ALIVE, new NetworkAddress(InetAddress
+                .getByName("10.0.0.4").getAddress(), 5099)));
+        ncNameToNcInfos.put("nc5", new NodeControllerInfo("nc5", NodeStatus.ALIVE, new NetworkAddress(InetAddress
+                .getByName("10.0.0.5").getAddress(), 5099)));
+        ncNameToNcInfos.put("nc6", new NodeControllerInfo("nc6", NodeStatus.ALIVE, new NetworkAddress(InetAddress
+                .getByName("10.0.0.6").getAddress(), 5099)));
+
+        List<InputSplit> fileSplits = new ArrayList<InputSplit>();
+        fileSplits.add(new FileSplit(new Path("part-1"), 0, 0, new String[] { "10.0.0.1", "10.0.0.2", "10.0.0.3" }));
+        fileSplits.add(new FileSplit(new Path("part-2"), 0, 0, new String[] { "10.0.0.3", "10.0.0.4", "10.0.0.5" }));
+        fileSplits.add(new FileSplit(new Path("part-3"), 0, 0, new String[] { "10.0.0.4", "10.0.0.5", "10.0.0.6" }));
+        fileSplits.add(new FileSplit(new Path("part-4"), 0, 0, new String[] { "10.0.0.2", "10.0.0.1", "10.0.0.6" }));
+        fileSplits.add(new FileSplit(new Path("part-5"), 0, 0, new String[] { "10.0.0.3", "10.0.0.4", "10.0.0.5" }));
+        fileSplits.add(new FileSplit(new Path("part-6"), 0, 0, new String[] { "10.0.0.2", "10.0.0.3", "10.0.0.5" }));
+        fileSplits.add(new FileSplit(new Path("part-7"), 0, 0, new String[] { "10.0.0.1", "10.0.0.2", "10.0.0.3" }));
+        fileSplits.add(new FileSplit(new Path("part-8"), 0, 0, new String[] { "10.0.0.3", "10.0.0.4", "10.0.0.5" }));
+        fileSplits.add(new FileSplit(new Path("part-9"), 0, 0, new String[] { "10.0.0.4", "10.0.0.5", "10.0.0.6" }));
+        fileSplits.add(new FileSplit(new Path("part-10"), 0, 0, new String[] { "10.0.0.2", "10.0.0.1", "10.0.0.6" }));
+        fileSplits.add(new FileSplit(new Path("part-11"), 0, 0, new String[] { "10.0.0.3", "10.0.0.4", "10.0.0.7" }));
+        fileSplits.add(new FileSplit(new Path("part-12"), 0, 0, new String[] { "10.0.0.2", "10.0.0.3", "10.0.0.5" }));
+
+        Scheduler scheduler = new Scheduler(ncNameToNcInfos);
+        String[] locationConstraints = scheduler.getLocationConstraints(fileSplits);
+
+        String[] expectedResults = new String[] { "nc1", "nc3", "nc4", "nc2", "nc3", "nc2", "nc1", "nc4", "nc5", "nc6",
+                "nc6", "nc5" };
+
+        for (int i = 0; i < locationConstraints.length; i++) {
+            Assert.assertEquals(locationConstraints[i], expectedResults[i]);
+        }
+    }
+
+    /**
+     * Test the case where the HDFS cluster is a larger than the Hyracks cluster
+     * 
+     * @throws Exception
+     */
+    public void testSchedulerSmallerHDFS() throws Exception {
+        Map<String, NodeControllerInfo> ncNameToNcInfos = new HashMap<String, NodeControllerInfo>();
+        ncNameToNcInfos.put("nc1", new NodeControllerInfo("nc1", NodeStatus.ALIVE, new NetworkAddress(InetAddress
+                .getByName("10.0.0.1").getAddress(), 5099)));
+        ncNameToNcInfos.put("nc2", new NodeControllerInfo("nc2", NodeStatus.ALIVE, new NetworkAddress(InetAddress
+                .getByName("10.0.0.2").getAddress(), 5099)));
+        ncNameToNcInfos.put("nc3", new NodeControllerInfo("nc3", NodeStatus.ALIVE, new NetworkAddress(InetAddress
+                .getByName("10.0.0.3").getAddress(), 5099)));
+        ncNameToNcInfos.put("nc4", new NodeControllerInfo("nc4", NodeStatus.ALIVE, new NetworkAddress(InetAddress
+                .getByName("10.0.0.4").getAddress(), 5099)));
+        ncNameToNcInfos.put("nc5", new NodeControllerInfo("nc5", NodeStatus.ALIVE, new NetworkAddress(InetAddress
+                .getByName("10.0.0.5").getAddress(), 5099)));
+        ncNameToNcInfos.put("nc6", new NodeControllerInfo("nc6", NodeStatus.ALIVE, new NetworkAddress(InetAddress
+                .getByName("10.0.0.6").getAddress(), 5099)));
+
+        List<InputSplit> fileSplits = new ArrayList<InputSplit>();
+        fileSplits.add(new FileSplit(new Path("part-1"), 0, 0, new String[] { "10.0.0.1", "10.0.0.2", "10.0.0.3" }));
+        fileSplits.add(new FileSplit(new Path("part-2"), 0, 0, new String[] { "10.0.0.3", "10.0.0.4", "10.0.0.5" }));
+        fileSplits.add(new FileSplit(new Path("part-3"), 0, 0, new String[] { "10.0.0.4", "10.0.0.5", "10.0.0.3" }));
+        fileSplits.add(new FileSplit(new Path("part-4"), 0, 0, new String[] { "10.0.0.2", "10.0.0.1", "10.0.0.3" }));
+        fileSplits.add(new FileSplit(new Path("part-5"), 0, 0, new String[] { "10.0.0.3", "10.0.0.4", "10.0.0.5" }));
+        fileSplits.add(new FileSplit(new Path("part-6"), 0, 0, new String[] { "10.0.0.2", "10.0.0.3", "10.0.0.5" }));
+        fileSplits.add(new FileSplit(new Path("part-7"), 0, 0, new String[] { "10.0.0.1", "10.0.0.2", "10.0.0.3" }));
+        fileSplits.add(new FileSplit(new Path("part-8"), 0, 0, new String[] { "10.0.0.3", "10.0.0.4", "10.0.0.5" }));
+        fileSplits.add(new FileSplit(new Path("part-9"), 0, 0, new String[] { "10.0.0.4", "10.0.0.5", "10.0.0.1" }));
+        fileSplits.add(new FileSplit(new Path("part-10"), 0, 0, new String[] { "10.0.0.2", "10.0.0.1", "10.0.0.2" }));
+        fileSplits.add(new FileSplit(new Path("part-11"), 0, 0, new String[] { "10.0.0.3", "10.0.0.4", "10.0.0.5" }));
+        fileSplits.add(new FileSplit(new Path("part-12"), 0, 0, new String[] { "10.0.0.2", "10.0.0.3", "10.0.0.5" }));
+
+        Scheduler scheduler = new Scheduler(ncNameToNcInfos);
+        String[] locationConstraints = scheduler.getLocationConstraints(fileSplits);
+
+        String[] expectedResults = new String[] { "nc1", "nc3", "nc4", "nc2", "nc3", "nc2", "nc1", "nc4", "nc5", "nc6",
+                "nc5", "nc6" };
+
+        for (int i = 0; i < locationConstraints.length; i++) {
+            Assert.assertEquals(locationConstraints[i], expectedResults[i]);
+        }
+    }
+
+    /**
+     * Test the case where the HDFS cluster is a larger than the Hyracks cluster
+     * 
+     * @throws Exception
+     */
+    public void testSchedulerSmallerHDFSOdd() throws Exception {
+        Map<String, NodeControllerInfo> ncNameToNcInfos = new HashMap<String, NodeControllerInfo>();
+        ncNameToNcInfos.put("nc1", new NodeControllerInfo("nc1", NodeStatus.ALIVE, new NetworkAddress(InetAddress
+                .getByName("10.0.0.1").getAddress(), 5099)));
+        ncNameToNcInfos.put("nc2", new NodeControllerInfo("nc2", NodeStatus.ALIVE, new NetworkAddress(InetAddress
+                .getByName("10.0.0.2").getAddress(), 5099)));
+        ncNameToNcInfos.put("nc3", new NodeControllerInfo("nc3", NodeStatus.ALIVE, new NetworkAddress(InetAddress
+                .getByName("10.0.0.3").getAddress(), 5099)));
+        ncNameToNcInfos.put("nc4", new NodeControllerInfo("nc4", NodeStatus.ALIVE, new NetworkAddress(InetAddress
+                .getByName("10.0.0.4").getAddress(), 5099)));
+        ncNameToNcInfos.put("nc5", new NodeControllerInfo("nc5", NodeStatus.ALIVE, new NetworkAddress(InetAddress
+                .getByName("10.0.0.5").getAddress(), 5099)));
+        ncNameToNcInfos.put("nc6", new NodeControllerInfo("nc6", NodeStatus.ALIVE, new NetworkAddress(InetAddress
+                .getByName("10.0.0.6").getAddress(), 5099)));
+
+        List<InputSplit> fileSplits = new ArrayList<InputSplit>();
+        fileSplits.add(new FileSplit(new Path("part-1"), 0, 0, new String[] { "10.0.0.1", "10.0.0.2", "10.0.0.3" }));
+        fileSplits.add(new FileSplit(new Path("part-2"), 0, 0, new String[] { "10.0.0.3", "10.0.0.4", "10.0.0.5" }));
+        fileSplits.add(new FileSplit(new Path("part-3"), 0, 0, new String[] { "10.0.0.4", "10.0.0.5", "10.0.0.3" }));
+        fileSplits.add(new FileSplit(new Path("part-4"), 0, 0, new String[] { "10.0.0.2", "10.0.0.1", "10.0.0.3" }));
+        fileSplits.add(new FileSplit(new Path("part-5"), 0, 0, new String[] { "10.0.0.3", "10.0.0.4", "10.0.0.5" }));
+        fileSplits.add(new FileSplit(new Path("part-6"), 0, 0, new String[] { "10.0.0.2", "10.0.0.3", "10.0.0.5" }));
+        fileSplits.add(new FileSplit(new Path("part-7"), 0, 0, new String[] { "10.0.0.1", "10.0.0.2", "10.0.0.3" }));
+        fileSplits.add(new FileSplit(new Path("part-8"), 0, 0, new String[] { "10.0.0.3", "10.0.0.4", "10.0.0.5" }));
+        fileSplits.add(new FileSplit(new Path("part-9"), 0, 0, new String[] { "10.0.0.4", "10.0.0.5", "10.0.0.1" }));
+        fileSplits.add(new FileSplit(new Path("part-10"), 0, 0, new String[] { "10.0.0.2", "10.0.0.1", "10.0.0.2" }));
+        fileSplits.add(new FileSplit(new Path("part-11"), 0, 0, new String[] { "10.0.0.3", "10.0.0.4", "10.0.0.5" }));
+        fileSplits.add(new FileSplit(new Path("part-12"), 0, 0, new String[] { "10.0.0.2", "10.0.0.3", "10.0.0.5" }));
+        fileSplits.add(new FileSplit(new Path("part-13"), 0, 0, new String[] { "10.0.0.2", "10.0.0.4", "10.0.0.5" }));
+
+        Scheduler scheduler = new Scheduler(ncNameToNcInfos);
+        String[] locationConstraints = scheduler.getLocationConstraints(fileSplits);
+
+        String[] expectedResults = new String[] { "nc1", "nc3", "nc4", "nc2", "nc3", "nc2", "nc1", "nc3", "nc4", "nc2",
+                "nc4", "nc5", "nc5" };
+
+        for (int i = 0; i < locationConstraints.length; i++) {
+            Assert.assertEquals(locationConstraints[i], expectedResults[i]);
+        }
+    }
+
+}
diff --git a/hyracks/hyracks-hdfs/src/test/resources/data/customer.tbl b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/data/customer.tbl
similarity index 100%
rename from hyracks/hyracks-hdfs/src/test/resources/data/customer.tbl
rename to hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/data/customer.tbl
diff --git a/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/expected/part-0 b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/expected/part-0
new file mode 100755
index 0000000..ce3b00c
--- /dev/null
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/expected/part-0
@@ -0,0 +1,150 @@
+100|Customer#000000100|fptUABXcmkC5Wx|20|30-749-445-4907|9889.89|FURNITURE|was furiously fluffily quiet deposits. silent, pending requests boost against |
+101|Customer#000000101|sMmL2rNeHDltovSm Y|2|12-514-298-3699|7470.96|MACHINERY| sleep. pending packages detect slyly ironic pack|
+102|Customer#000000102|UAtflJ06 fn9zBfKjInkQZlWtqaA|19|29-324-978-8538|8462.17|BUILDING|ously regular dependencies nag among the furiously express dinos. blithely final|
+103|Customer#000000103|8KIsQX4LJ7QMsj6DrtFtXu0nUEdV,8a|9|19-216-107-2107|2757.45|BUILDING|furiously pending notornis boost slyly around the blithely ironic ideas? final, even instructions cajole fl|
+104|Customer#000000104|9mcCK L7rt0SwiYtrbO88DiZS7U d7M|10|20-966-284-8065|-588.38|FURNITURE|rate carefully slyly special pla|
+105|Customer#000000105|4iSJe4L SPjg7kJj98Yz3z0B|10|20-793-553-6417|9091.82|MACHINERY|l pains cajole even accounts. quietly final instructi|
+106|Customer#000000106|xGCOEAUjUNG|1|11-751-989-4627|3288.42|MACHINERY|lose slyly. ironic accounts along the evenly regular theodolites wake about the special, final gifts. |
+107|Customer#000000107|Zwg64UZ,q7GRqo3zm7P1tZIRshBDz|15|25-336-529-9919|2514.15|AUTOMOBILE|counts cajole slyly. regular requests wake. furiously regular deposits about the blithely final fo|
+108|Customer#000000108|GPoeEvpKo1|5|15-908-619-7526|2259.38|BUILDING|refully ironic deposits sleep. regular, unusual requests wake slyly|
+109|Customer#000000109|OOOkYBgCMzgMQXUmkocoLb56rfrdWp2NE2c|16|26-992-422-8153|-716.10|BUILDING|es. fluffily final dependencies sleep along the blithely even pinto beans. final deposits haggle furiously furiou|
+10|Customer#000000010|6LrEaV6KR6PLVcgl2ArL Q3rqzLzcT1 v2|5|15-741-346-9870|2753.54|HOUSEHOLD|es regular deposits haggle. fur|
+110|Customer#000000110|mymPfgphaYXNYtk|10|20-893-536-2069|7462.99|AUTOMOBILE|nto beans cajole around the even, final deposits. quickly bold packages according to the furiously regular dept|
+111|Customer#000000111|CBSbPyOWRorloj2TBvrK9qp9tHBs|22|32-582-283-7528|6505.26|MACHINERY|ly unusual instructions detect fluffily special deposits-- theodolites nag carefully during the ironic dependencies|
+112|Customer#000000112|RcfgG3bO7QeCnfjqJT1|19|29-233-262-8382|2953.35|FURNITURE|rmanently unusual multipliers. blithely ruthless deposits are furiously along the|
+113|Customer#000000113|eaOl5UBXIvdY57rglaIzqvfPD,MYfK|12|22-302-930-4756|2912.00|BUILDING|usly regular theodolites boost furiously doggedly pending instructio|
+114|Customer#000000114|xAt 5f5AlFIU|14|24-805-212-7646|1027.46|FURNITURE|der the carefully express theodolites are after the packages. packages are. bli|
+115|Customer#000000115|0WFt1IXENmUT2BgbsB0ShVKJZt0HCBCbFl0aHc|8|18-971-699-1843|7508.92|HOUSEHOLD|sits haggle above the carefully ironic theodolite|
+116|Customer#000000116|yCuVxIgsZ3,qyK2rloThy3u|16|26-632-309-5792|8403.99|BUILDING|as. quickly final sauternes haggle slyly carefully even packages. brave, ironic pinto beans are above the furious|
+117|Customer#000000117|uNhM,PzsRA3S,5Y Ge5Npuhi|24|34-403-631-3505|3950.83|FURNITURE|affix. instructions are furiously sl|
+118|Customer#000000118|OVnFuHygK9wx3xpg8|18|28-639-943-7051|3582.37|AUTOMOBILE|uick packages alongside of the furiously final deposits haggle above the fluffily even foxes. blithely dogged dep|
+119|Customer#000000119|M1ETOIecuvH8DtM0Y0nryXfW|7|17-697-919-8406|3930.35|FURNITURE|express ideas. blithely ironic foxes thrash. special acco|
+11|Customer#000000011|PkWS 3HlXqwTuzrKg633BEi|23|33-464-151-3439|-272.60|BUILDING|ckages. requests sleep slyly. quickly even pinto beans promise above the slyly regular pinto beans. |
+120|Customer#000000120|zBNna00AEInqyO1|12|22-291-534-1571|363.75|MACHINERY| quickly. slyly ironic requests cajole blithely furiously final dependen|
+121|Customer#000000121|tv nCR2YKupGN73mQudO|17|27-411-990-2959|6428.32|BUILDING|uriously stealthy ideas. carefully final courts use carefully|
+122|Customer#000000122|yp5slqoNd26lAENZW3a67wSfXA6hTF|3|13-702-694-4520|7865.46|HOUSEHOLD| the special packages hinder blithely around the permanent requests. bold depos|
+123|Customer#000000123|YsOnaaER8MkvK5cpf4VSlq|5|15-817-151-1168|5897.83|BUILDING|ependencies. regular, ironic requests are fluffily regu|
+124|Customer#000000124|aTbyVAW5tCd,v09O|18|28-183-750-7809|1842.49|AUTOMOBILE|le fluffily even dependencies. quietly s|
+125|Customer#000000125|,wSZXdVR xxIIfm9s8ITyLl3kgjT6UC07GY0Y|19|29-261-996-3120|-234.12|FURNITURE|x-ray finally after the packages? regular requests c|
+126|Customer#000000126|ha4EHmbx3kg DYCsP6DFeUOmavtQlHhcfaqr|22|32-755-914-7592|1001.39|HOUSEHOLD|s about the even instructions boost carefully furiously ironic pearls. ruthless, |
+127|Customer#000000127|Xyge4DX2rXKxXyye1Z47LeLVEYMLf4Bfcj|21|31-101-672-2951|9280.71|MACHINERY|ic, unusual theodolites nod silently after the final, ironic instructions: pending r|
+128|Customer#000000128|AmKUMlJf2NRHcKGmKjLS|4|14-280-874-8044|-986.96|HOUSEHOLD|ing packages integrate across the slyly unusual dugouts. blithely silent ideas sublate carefully. blithely expr|
+129|Customer#000000129|q7m7rbMM0BpaCdmxloCgBDRCleXsXkdD8kf|7|17-415-148-7416|9127.27|HOUSEHOLD| unusual deposits boost carefully furiously silent ideas. pending accounts cajole slyly across|
+12|Customer#000000012|9PWKuhzT4Zr1Q|13|23-791-276-1263|3396.49|HOUSEHOLD| to the carefully final braids. blithely regular requests nag. ironic theodolites boost quickly along|
+130|Customer#000000130|RKPx2OfZy0Vn 8wGWZ7F2EAvmMORl1k8iH|9|19-190-993-9281|5073.58|HOUSEHOLD|ix slowly. express packages along the furiously ironic requests integrate daringly deposits. fur|
+131|Customer#000000131|jyN6lAjb1FtH10rMC,XzlWyCBrg75|11|21-840-210-3572|8595.53|HOUSEHOLD|jole special packages. furiously final dependencies about the furiously speci|
+132|Customer#000000132|QM5YabAsTLp9|4|14-692-150-9717|162.57|HOUSEHOLD|uickly carefully special theodolites. carefully regular requests against the blithely unusual instructions |
+133|Customer#000000133|IMCuXdpIvdkYO92kgDGuyHgojcUs88p|17|27-408-997-8430|2314.67|AUTOMOBILE|t packages. express pinto beans are blithely along the unusual, even theodolites. silent packages use fu|
+134|Customer#000000134|sUiZ78QCkTQPICKpA9OBzkUp2FM|11|21-200-159-5932|4608.90|BUILDING|yly fluffy foxes boost final ideas. b|
+135|Customer#000000135|oZK,oC0 fdEpqUML|19|29-399-293-6241|8732.91|FURNITURE| the slyly final accounts. deposits cajole carefully. carefully sly packag|
+136|Customer#000000136|QoLsJ0v5C1IQbh,DS1|7|17-501-210-4726|-842.39|FURNITURE|ackages sleep ironic, final courts. even requests above the blithely bold requests g|
+137|Customer#000000137|cdW91p92rlAEHgJafqYyxf1Q|16|26-777-409-5654|7838.30|HOUSEHOLD|carefully regular theodolites use. silent dolphins cajo|
+138|Customer#000000138|5uyLAeY7HIGZqtu66Yn08f|5|15-394-860-4589|430.59|MACHINERY|ts doze on the busy ideas. regular|
+139|Customer#000000139|3ElvBwudHKL02732YexGVFVt |9|19-140-352-1403|7897.78|MACHINERY|nstructions. quickly ironic ideas are carefully. bold, |
+13|Customer#000000013|nsXQu0oVjD7PM659uC3SRSp|3|13-761-547-5974|3857.34|BUILDING|ounts sleep carefully after the close frays. carefully bold notornis use ironic requests. blithely|
+140|Customer#000000140|XRqEPiKgcETII,iOLDZp5jA|4|14-273-885-6505|9963.15|MACHINERY|ies detect slyly ironic accounts. slyly ironic theodolites hag|
+141|Customer#000000141|5IW,WROVnikc3l7DwiUDGQNGsLBGOL6Dc0|1|11-936-295-6204|6706.14|FURNITURE|packages nag furiously. carefully unusual accounts snooze according to the fluffily regular pinto beans. slyly spec|
+142|Customer#000000142|AnJ5lxtLjioClr2khl9pb8NLxG2,|9|19-407-425-2584|2209.81|AUTOMOBILE|. even, express theodolites upo|
+143|Customer#000000143|681r22uL452zqk 8By7I9o9enQfx0|16|26-314-406-7725|2186.50|MACHINERY|across the blithely unusual requests haggle theodo|
+144|Customer#000000144|VxYZ3ebhgbltnetaGjNC8qCccjYU05 fePLOno8y|1|11-717-379-4478|6417.31|MACHINERY|ges. slyly regular accounts are slyly. bold, idle reque|
+145|Customer#000000145|kQjHmt2kcec cy3hfMh969u|13|23-562-444-8454|9748.93|HOUSEHOLD|ests? express, express instructions use. blithely fina|
+146|Customer#000000146|GdxkdXG9u7iyI1,,y5tq4ZyrcEy|3|13-835-723-3223|3328.68|FURNITURE|ffily regular dinos are slyly unusual requests. slyly specia|
+147|Customer#000000147|6VvIwbVdmcsMzuu,C84GtBWPaipGfi7DV|18|28-803-187-4335|8071.40|AUTOMOBILE|ress packages above the blithely regular packages sleep fluffily blithely ironic accounts. |
+148|Customer#000000148|BhSPlEWGvIJyT9swk vCWE|11|21-562-498-6636|2135.60|HOUSEHOLD|ing to the carefully ironic requests. carefully regular dependencies about the theodolites wake furious|
+149|Customer#000000149|3byTHCp2mNLPigUrrq|19|29-797-439-6760|8959.65|AUTOMOBILE|al instructions haggle against the slyly bold w|
+14|Customer#000000014|KXkletMlL2JQEA |1|11-845-129-3851|5266.30|FURNITURE|, ironic packages across the unus|
+150|Customer#000000150|zeoGShTjCwGPplOWFkLURrh41O0AZ8dwNEEN4 |18|28-328-564-7630|3849.48|MACHINERY|ole blithely among the furiously pending packages. furiously bold ideas wake fluffily ironic idea|
+15|Customer#000000015|YtWggXoOLdwdo7b0y,BZaGUQMLJMX1Y,EC,6Dn|23|33-687-542-7601|2788.52|HOUSEHOLD| platelets. regular deposits detect asymptotes. blithely unusual packages nag slyly at the fluf|
+16|Customer#000000016|cYiaeMLZSMAOQ2 d0W,|10|20-781-609-3107|4681.03|FURNITURE|kly silent courts. thinly regular theodolites sleep fluffily after |
+17|Customer#000000017|izrh 6jdqtp2eqdtbkswDD8SG4SzXruMfIXyR7|2|12-970-682-3487|6.34|AUTOMOBILE|packages wake! blithely even pint|
+18|Customer#000000018|3txGO AiuFux3zT0Z9NYaFRnZt|6|16-155-215-1315|5494.43|BUILDING|s sleep. carefully even instructions nag furiously alongside of t|
+19|Customer#000000019|uc,3bHIx84H,wdrmLOjVsiqXCq2tr|18|28-396-526-5053|8914.71|HOUSEHOLD| nag. furiously careful packages are slyly at the accounts. furiously regular in|
+1|Customer#000000001|IVhzIApeRb ot,c,E|15|25-989-741-2988|711.56|BUILDING|to the even, regular platelets. regular, ironic epitaphs nag e|
+20|Customer#000000020|JrPk8Pqplj4Ne|22|32-957-234-8742|7603.40|FURNITURE|g alongside of the special excuses-- fluffily enticing packages wake |
+21|Customer#000000021|XYmVpr9yAHDEn|8|18-902-614-8344|1428.25|MACHINERY| quickly final accounts integrate blithely furiously u|
+22|Customer#000000022|QI6p41,FNs5k7RZoCCVPUTkUdYpB|3|13-806-545-9701|591.98|MACHINERY|s nod furiously above the furiously ironic ideas. |
+23|Customer#000000023|OdY W13N7Be3OC5MpgfmcYss0Wn6TKT|3|13-312-472-8245|3332.02|HOUSEHOLD|deposits. special deposits cajole slyly. fluffily special deposits about the furiously |
+24|Customer#000000024|HXAFgIAyjxtdqwimt13Y3OZO 4xeLe7U8PqG|13|23-127-851-8031|9255.67|MACHINERY|into beans. fluffily final ideas haggle fluffily|
+25|Customer#000000025|Hp8GyFQgGHFYSilH5tBfe|12|22-603-468-3533|7133.70|FURNITURE|y. accounts sleep ruthlessly according to the regular theodolites. unusual instructions sleep. ironic, final|
+26|Customer#000000026|8ljrc5ZeMl7UciP|22|32-363-455-4837|5182.05|AUTOMOBILE|c requests use furiously ironic requests. slyly ironic dependencies us|
+27|Customer#000000027|IS8GIyxpBrLpMT0u7|3|13-137-193-2709|5679.84|BUILDING| about the carefully ironic pinto beans. accoun|
+28|Customer#000000028|iVyg0daQ,Tha8x2WPWA9m2529m|8|18-774-241-1462|1007.18|FURNITURE| along the regular deposits. furiously final pac|
+29|Customer#000000029|sJ5adtfyAkCK63df2,vF25zyQMVYE34uh|0|10-773-203-7342|7618.27|FURNITURE|its after the carefully final platelets x-ray against |
+2|Customer#000000002|XSTf4,NCwDVaWNe6tEgvwfmRchLXak|13|23-768-687-3665|121.65|AUTOMOBILE|l accounts. blithely ironic theodolites integrate boldly: caref|
+30|Customer#000000030|nJDsELGAavU63Jl0c5NKsKfL8rIJQQkQnYL2QJY|1|11-764-165-5076|9321.01|BUILDING|lithely final requests. furiously unusual account|
+31|Customer#000000031|LUACbO0viaAv6eXOAebryDB xjVst|23|33-197-837-7094|5236.89|HOUSEHOLD|s use among the blithely pending depo|
+32|Customer#000000032|jD2xZzi UmId,DCtNBLXKj9q0Tlp2iQ6ZcO3J|15|25-430-914-2194|3471.53|BUILDING|cial ideas. final, furious requests across the e|
+33|Customer#000000033|qFSlMuLucBmx9xnn5ib2csWUweg D|17|27-375-391-1280|-78.56|AUTOMOBILE|s. slyly regular accounts are furiously. carefully pending requests|
+34|Customer#000000034|Q6G9wZ6dnczmtOx509xgE,M2KV|15|25-344-968-5422|8589.70|HOUSEHOLD|nder against the even, pending accounts. even|
+35|Customer#000000035|TEjWGE4nBzJL2|17|27-566-888-7431|1228.24|HOUSEHOLD|requests. special, express requests nag slyly furiousl|
+36|Customer#000000036|3TvCzjuPzpJ0,DdJ8kW5U|21|31-704-669-5769|4987.27|BUILDING|haggle. enticing, quiet platelets grow quickly bold sheaves. carefully regular acc|
+37|Customer#000000037|7EV4Pwh,3SboctTWt|8|18-385-235-7162|-917.75|FURNITURE|ilent packages are carefully among the deposits. furiousl|
+38|Customer#000000038|a5Ee5e9568R8RLP 2ap7|12|22-306-880-7212|6345.11|HOUSEHOLD|lar excuses. closely even asymptotes cajole blithely excuses. carefully silent pinto beans sleep carefully fin|
+39|Customer#000000039|nnbRg,Pvy33dfkorYE FdeZ60|2|12-387-467-6509|6264.31|AUTOMOBILE|tions. slyly silent excuses slee|
+3|Customer#000000003|MG9kdTD2WBHm|1|11-719-748-3364|7498.12|AUTOMOBILE| deposits eat slyly ironic, even instructions. express foxes detect slyly. blithely even accounts abov|
+40|Customer#000000040|gOnGWAyhSV1ofv|3|13-652-915-8939|1335.30|BUILDING|rges impress after the slyly ironic courts. foxes are. blithely |
+41|Customer#000000041|IM9mzmyoxeBmvNw8lA7G3Ydska2nkZF|10|20-917-711-4011|270.95|HOUSEHOLD|ly regular accounts hang bold, silent packages. unusual foxes haggle slyly above the special, final depo|
+42|Customer#000000042|ziSrvyyBke|5|15-416-330-4175|8727.01|BUILDING|ssly according to the pinto beans: carefully special requests across the even, pending accounts wake special|
+43|Customer#000000043|ouSbjHk8lh5fKX3zGso3ZSIj9Aa3PoaFd|19|29-316-665-2897|9904.28|MACHINERY|ial requests: carefully pending foxes detect quickly. carefully final courts cajole quickly. carefully|
+44|Customer#000000044|Oi,dOSPwDu4jo4x,,P85E0dmhZGvNtBwi|16|26-190-260-5375|7315.94|AUTOMOBILE|r requests around the unusual, bold a|
+45|Customer#000000045|4v3OcpFgoOmMG,CbnF,4mdC|9|19-715-298-9917|9983.38|AUTOMOBILE|nto beans haggle slyly alongside of t|
+46|Customer#000000046|eaTXWWm10L9|6|16-357-681-2007|5744.59|AUTOMOBILE|ctions. accounts sleep furiously even requests. regular, regular accounts cajole blithely around the final pa|
+47|Customer#000000047|b0UgocSqEW5 gdVbhNT|2|12-427-271-9466|274.58|BUILDING|ions. express, ironic instructions sleep furiously ironic ideas. furi|
+48|Customer#000000048|0UU iPhBupFvemNB|0|10-508-348-5882|3792.50|BUILDING|re fluffily pending foxes. pending, bold platelets sleep slyly. even platelets cajo|
+49|Customer#000000049|cNgAeX7Fqrdf7HQN9EwjUa4nxT,68L FKAxzl|10|20-908-631-4424|4573.94|FURNITURE|nusual foxes! fluffily pending packages maintain to the regular |
+4|Customer#000000004|XxVSJsLAGtn|4|14-128-190-5944|2866.83|MACHINERY| requests. final, regular ideas sleep final accou|
+50|Customer#000000050|9SzDYlkzxByyJ1QeTI o|6|16-658-112-3221|4266.13|MACHINERY|ts. furiously ironic accounts cajole furiously slyly ironic dinos.|
+51|Customer#000000051|uR,wEaiTvo4|12|22-344-885-4251|855.87|FURNITURE|eposits. furiously regular requests integrate carefully packages. furious|
+52|Customer#000000052|7 QOqGqqSy9jfV51BC71jcHJSD0|11|21-186-284-5998|5630.28|HOUSEHOLD|ic platelets use evenly even accounts. stealthy theodolites cajole furiou|
+53|Customer#000000053|HnaxHzTfFTZs8MuCpJyTbZ47Cm4wFOOgib|15|25-168-852-5363|4113.64|HOUSEHOLD|ar accounts are. even foxes are blithely. fluffily pending deposits boost|
+54|Customer#000000054|,k4vf 5vECGWFy,hosTE,|4|14-776-370-4745|868.90|AUTOMOBILE|sual, silent accounts. furiously express accounts cajole special deposits. final, final accounts use furi|
+55|Customer#000000055|zIRBR4KNEl HzaiV3a i9n6elrxzDEh8r8pDom|10|20-180-440-8525|4572.11|MACHINERY|ully unusual packages wake bravely bold packages. unusual requests boost deposits! blithely ironic packages ab|
+56|Customer#000000056|BJYZYJQk4yD5B|10|20-895-685-6920|6530.86|FURNITURE|. notornis wake carefully. carefully fluffy requests are furiously even accounts. slyly expre|
+57|Customer#000000057|97XYbsuOPRXPWU|21|31-835-306-1650|4151.93|AUTOMOBILE|ove the carefully special packages. even, unusual deposits sleep slyly pend|
+58|Customer#000000058|g9ap7Dk1Sv9fcXEWjpMYpBZIRUohi T|13|23-244-493-2508|6478.46|HOUSEHOLD|ideas. ironic ideas affix furiously express, final instructions. regular excuses use quickly e|
+59|Customer#000000059|zLOCP0wh92OtBihgspOGl4|1|11-355-584-3112|3458.60|MACHINERY|ously final packages haggle blithely after the express deposits. furiou|
+5|Customer#000000005|KvpyuHCplrB84WgAiGV6sYpZq7Tj|3|13-750-942-6364|794.47|HOUSEHOLD|n accounts will have to unwind. foxes cajole accor|
+60|Customer#000000060|FyodhjwMChsZmUz7Jz0H|12|22-480-575-5866|2741.87|MACHINERY|latelets. blithely unusual courts boost furiously about the packages. blithely final instruct|
+61|Customer#000000061|9kndve4EAJxhg3veF BfXr7AqOsT39o gtqjaYE|17|27-626-559-8599|1536.24|FURNITURE|egular packages shall have to impress along the |
+62|Customer#000000062|upJK2Dnw13,|7|17-361-978-7059|595.61|MACHINERY|kly special dolphins. pinto beans are slyly. quickly regular accounts are furiously a|
+63|Customer#000000063|IXRSpVWWZraKII|21|31-952-552-9584|9331.13|AUTOMOBILE|ithely even accounts detect slyly above the fluffily ir|
+64|Customer#000000064|MbCeGY20kaKK3oalJD,OT|3|13-558-731-7204|-646.64|BUILDING|structions after the quietly ironic theodolites cajole be|
+65|Customer#000000065|RGT yzQ0y4l0H90P783LG4U95bXQFDRXbWa1sl,X|23|33-733-623-5267|8795.16|AUTOMOBILE|y final foxes serve carefully. theodolites are carefully. pending i|
+66|Customer#000000066|XbsEqXH1ETbJYYtA1A|22|32-213-373-5094|242.77|HOUSEHOLD|le slyly accounts. carefully silent packages benea|
+67|Customer#000000067|rfG0cOgtr5W8 xILkwp9fpCS8|9|19-403-114-4356|8166.59|MACHINERY|indle furiously final, even theodo|
+68|Customer#000000068|o8AibcCRkXvQFh8hF,7o|12|22-918-832-2411|6853.37|HOUSEHOLD| pending pinto beans impress realms. final dependencies |
+69|Customer#000000069|Ltx17nO9Wwhtdbe9QZVxNgP98V7xW97uvSH1prEw|9|19-225-978-5670|1709.28|HOUSEHOLD|thely final ideas around the quickly final dependencies affix carefully quickly final theodolites. final accounts c|
+6|Customer#000000006|sKZz0CsnMD7mp4Xd0YrBvx,LREYKUWAh yVn|20|30-114-968-4951|7638.57|AUTOMOBILE|tions. even deposits boost according to the slyly bold packages. final accounts cajole requests. furious|
+70|Customer#000000070|mFowIuhnHjp2GjCiYYavkW kUwOjIaTCQ|22|32-828-107-2832|4867.52|FURNITURE|fter the special asymptotes. ideas after the unusual frets cajole quickly regular pinto be|
+71|Customer#000000071|TlGalgdXWBmMV,6agLyWYDyIz9MKzcY8gl,w6t1B|7|17-710-812-5403|-611.19|HOUSEHOLD|g courts across the regular, final pinto beans are blithely pending ac|
+72|Customer#000000072|putjlmskxE,zs,HqeIA9Wqu7dhgH5BVCwDwHHcf|2|12-759-144-9689|-362.86|FURNITURE|ithely final foxes sleep always quickly bold accounts. final wat|
+73|Customer#000000073|8IhIxreu4Ug6tt5mog4|0|10-473-439-3214|4288.50|BUILDING|usual, unusual packages sleep busily along the furiou|
+74|Customer#000000074|IkJHCA3ZThF7qL7VKcrU nRLl,kylf |4|14-199-862-7209|2764.43|MACHINERY|onic accounts. blithely slow packages would haggle carefully. qui|
+75|Customer#000000075|Dh 6jZ,cwxWLKQfRKkiGrzv6pm|18|28-247-803-9025|6684.10|AUTOMOBILE| instructions cajole even, even deposits. finally bold deposits use above the even pains. slyl|
+76|Customer#000000076|m3sbCvjMOHyaOofH,e UkGPtqc4|0|10-349-718-3044|5745.33|FURNITURE|pecial deposits. ironic ideas boost blithely according to the closely ironic theodolites! furiously final deposits n|
+77|Customer#000000077|4tAE5KdMFGD4byHtXF92vx|17|27-269-357-4674|1738.87|BUILDING|uffily silent requests. carefully ironic asymptotes among the ironic hockey players are carefully bli|
+78|Customer#000000078|HBOta,ZNqpg3U2cSL0kbrftkPwzX|9|19-960-700-9191|7136.97|FURNITURE|ests. blithely bold pinto beans h|
+79|Customer#000000079|n5hH2ftkVRwW8idtD,BmM2|15|25-147-850-4166|5121.28|MACHINERY|es. packages haggle furiously. regular, special requests poach after the quickly express ideas. blithely pending re|
+7|Customer#000000007|TcGe5gaZNgVePxU5kRrvXBfkasDTea|18|28-190-982-9759|9561.95|AUTOMOBILE|ainst the ironic, express theodolites. express, even pinto beans among the exp|
+80|Customer#000000080|K,vtXp8qYB |0|10-267-172-7101|7383.53|FURNITURE|tect among the dependencies. bold accounts engage closely even pinto beans. ca|
+81|Customer#000000081|SH6lPA7JiiNC6dNTrR|20|30-165-277-3269|2023.71|BUILDING|r packages. fluffily ironic requests cajole fluffily. ironically regular theodolit|
+82|Customer#000000082|zhG3EZbap4c992Gj3bK,3Ne,Xn|18|28-159-442-5305|9468.34|AUTOMOBILE|s wake. bravely regular accounts are furiously. regula|
+83|Customer#000000083|HnhTNB5xpnSF20JBH4Ycs6psVnkC3RDf|22|32-817-154-4122|6463.51|BUILDING|ccording to the quickly bold warhorses. final, regular foxes integrate carefully. bold packages nag blithely ev|
+84|Customer#000000084|lpXz6Fwr9945rnbtMc8PlueilS1WmASr CB|11|21-546-818-3802|5174.71|FURNITURE|ly blithe foxes. special asymptotes haggle blithely against the furiously regular depo|
+85|Customer#000000085|siRerlDwiolhYR 8FgksoezycLj|5|15-745-585-8219|3386.64|FURNITURE|ronic ideas use above the slowly pendin|
+86|Customer#000000086|US6EGGHXbTTXPL9SBsxQJsuvy|0|10-677-951-2353|3306.32|HOUSEHOLD|quests. pending dugouts are carefully aroun|
+87|Customer#000000087|hgGhHVSWQl 6jZ6Ev|23|33-869-884-7053|6327.54|FURNITURE|hely ironic requests integrate according to the ironic accounts. slyly regular pla|
+88|Customer#000000088|wtkjBN9eyrFuENSMmMFlJ3e7jE5KXcg|16|26-516-273-2566|8031.44|AUTOMOBILE|s are quickly above the quickly ironic instructions; even requests about the carefully final deposi|
+89|Customer#000000089|dtR, y9JQWUO6FoJExyp8whOU|14|24-394-451-5404|1530.76|FURNITURE|counts are slyly beyond the slyly final accounts. quickly final ideas wake. r|
+8|Customer#000000008|I0B10bB0AymmC, 0PrRYBCP1yGJ8xcBPmWhl5|17|27-147-574-9335|6819.74|BUILDING|among the slyly regular theodolites kindle blithely courts. carefully even theodolites haggle slyly along the ide|
+90|Customer#000000090|QxCzH7VxxYUWwfL7|16|26-603-491-1238|7354.23|BUILDING|sly across the furiously even |
+91|Customer#000000091|S8OMYFrpHwoNHaGBeuS6E 6zhHGZiprw1b7 q|8|18-239-400-3677|4643.14|AUTOMOBILE|onic accounts. fluffily silent pinto beans boost blithely according to the fluffily exp|
+92|Customer#000000092|obP PULk2LH LqNF,K9hcbNqnLAkJVsl5xqSrY,|2|12-446-416-8471|1182.91|MACHINERY|. pinto beans hang slyly final deposits. ac|
+93|Customer#000000093|EHXBr2QGdh|7|17-359-388-5266|2182.52|MACHINERY|press deposits. carefully regular platelets r|
+94|Customer#000000094|IfVNIN9KtkScJ9dUjK3Pg5gY1aFeaXewwf|9|19-953-499-8833|5500.11|HOUSEHOLD|latelets across the bold, final requests sleep according to the fluffily bold accounts. unusual deposits amon|
+95|Customer#000000095|EU0xvmWvOmUUn5J,2z85DQyG7QCJ9Xq7|15|25-923-255-2929|5327.38|MACHINERY|ithely. ruthlessly final requests wake slyly alongside of the furiously silent pinto beans. even the|
+96|Customer#000000096|vWLOrmXhRR|8|18-422-845-1202|6323.92|AUTOMOBILE|press requests believe furiously. carefully final instructions snooze carefully. |
+97|Customer#000000097|OApyejbhJG,0Iw3j rd1M|17|27-588-919-5638|2164.48|AUTOMOBILE|haggle slyly. bold, special ideas are blithely above the thinly bold theo|
+98|Customer#000000098|7yiheXNSpuEAwbswDW|12|22-885-845-6889|-551.37|BUILDING|ages. furiously pending accounts are quickly carefully final foxes: busily pe|
+99|Customer#000000099|szsrOiPtCHVS97Lt|15|25-515-237-9232|4088.65|HOUSEHOLD|cajole slyly about the regular theodolites! furiously bold requests nag along the pending, regular packages. somas|
+9|Customer#000000009|xKiAFTjUsCuxfeleNqefumTrjS|8|18-338-906-3675|8324.07|FURNITURE|r theodolites according to the requests wake thinly excuses: pending requests haggle furiousl|
diff --git a/hyracks/hyracks-hdfs/src/test/resources/hadoop/conf/core-site.xml b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/hadoop/conf/core-site.xml
similarity index 100%
rename from hyracks/hyracks-hdfs/src/test/resources/hadoop/conf/core-site.xml
rename to hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/hadoop/conf/core-site.xml
diff --git a/hyracks/hyracks-hdfs/src/test/resources/hadoop/conf/hdfs-site.xml b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/hadoop/conf/hdfs-site.xml
similarity index 100%
rename from hyracks/hyracks-hdfs/src/test/resources/hadoop/conf/hdfs-site.xml
rename to hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/hadoop/conf/hdfs-site.xml
diff --git a/hyracks/hyracks-hdfs/src/test/resources/hadoop/conf/log4j.properties b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/hadoop/conf/log4j.properties
similarity index 100%
rename from hyracks/hyracks-hdfs/src/test/resources/hadoop/conf/log4j.properties
rename to hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/hadoop/conf/log4j.properties
diff --git a/hyracks/hyracks-hdfs/src/test/resources/hadoop/conf/mapred-site.xml b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/hadoop/conf/mapred-site.xml
similarity index 88%
rename from hyracks/hyracks-hdfs/src/test/resources/hadoop/conf/mapred-site.xml
rename to hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/hadoop/conf/mapred-site.xml
index 2904fef..39b6505 100644
--- a/hyracks/hyracks-hdfs/src/test/resources/hadoop/conf/mapred-site.xml
+++ b/hyracks/hyracks-hdfs/hyracks-hdfs-core/src/test/resources/hadoop/conf/mapred-site.xml
@@ -18,8 +18,8 @@
       <value>20</value>
    </property>
    <property>
-      <name>mapred.min.split.size</name>
-      <value>8192</value>
+      <name>mapred.max.split.size</name>
+      <value>2048</value>
    </property>
 
 </configuration>
diff --git a/hyracks/hyracks-hdfs/pom.xml b/hyracks/hyracks-hdfs/pom.xml
index 105b700..5ed76e9 100644
--- a/hyracks/hyracks-hdfs/pom.xml
+++ b/hyracks/hyracks-hdfs/pom.xml
@@ -1,118 +1,19 @@
-<?xml version="1.0"?>
-<project
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
-	xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
-	<modelVersion>4.0.0</modelVersion>
-	<parent>
-		<artifactId>hyracks</artifactId>
-		<groupId>edu.uci.ics.hyracks</groupId>
-		<version>0.2.3-SNAPSHOT</version>
-	</parent>
+<?xml version="1.0" encoding="UTF-8"?>
+<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>
+  <packaging>pom</packaging>
+  <name>hyracks-hdfs</name>
 
-	<artifactId>hyracks-hdfs</artifactId>
-	<name>hyracks-hdfs</name>
+  <parent>
+    <groupId>edu.uci.ics.hyracks</groupId>
+    <artifactId>hyracks</artifactId>
+    <version>0.2.3-SNAPSHOT</version>
+  </parent>
 
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-compiler-plugin</artifactId>
-				<version>2.0.2</version>
-				<configuration>
-					<source>1.6</source>
-					<target>1.6</target>
-				</configuration>
-			</plugin>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-surefire-plugin</artifactId>
-				<version>2.7.2</version>
-				<configuration>
-					<forkMode>pertest</forkMode>
-					<includes>
-						<include>**/*TestSuite.java</include>
-						<include>**/*Test.java</include>
-					</includes>
-				</configuration>
-			</plugin>
-			<plugin>
-				<artifactId>maven-clean-plugin</artifactId>
-				<version>2.5</version>
-				<configuration>
-					<filesets>
-						<fileset>
-							<directory>.</directory>
-							<includes>
-								<include>teststore*</include>
-								<include>edu*</include>
-								<include>actual*</include>
-								<include>build*</include>
-								<include>expect*</include>
-								<include>ClusterController*</include>
-							</includes>
-						</fileset>
-					</filesets>
-				</configuration>
-			</plugin>
-		</plugins>
-	</build>
-
-	<dependencies>
-		<dependency>
-			<groupId>junit</groupId>
-			<artifactId>junit</artifactId>
-			<version>3.8.1</version>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>edu.uci.ics.hyracks</groupId>
-			<artifactId>hyracks-api</artifactId>
-			<version>0.2.3-SNAPSHOT</version>
-			<scope>compile</scope>
-		</dependency>
-		<dependency>
-			<groupId>edu.uci.ics.hyracks</groupId>
-			<artifactId>hyracks-dataflow-std</artifactId>
-			<version>0.2.3-SNAPSHOT</version>
-			<scope>compile</scope>
-		</dependency>
-		<dependency>
-			<groupId>edu.uci.ics.hyracks</groupId>
-			<artifactId>hyracks-dataflow-common</artifactId>
-			<version>0.2.3-SNAPSHOT</version>
-			<scope>compile</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.apache.hadoop</groupId>
-			<artifactId>hadoop-core</artifactId>
-			<version>0.20.2</version>
-			<type>jar</type>
-			<scope>compile</scope>
-		</dependency>
-		<dependency>
-			<groupId>edu.uci.ics.hyracks</groupId>
-			<artifactId>hyracks-control-cc</artifactId>
-			<version>0.2.3-SNAPSHOT</version>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>edu.uci.ics.hyracks</groupId>
-			<artifactId>hyracks-control-nc</artifactId>
-			<version>0.2.3-SNAPSHOT</version>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.apache.hadoop</groupId>
-			<artifactId>hadoop-test</artifactId>
-			<version>0.20.2</version>
-			<type>jar</type>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.apache.commons</groupId>
-			<artifactId>commons-io</artifactId>
-			<version>1.3.2</version>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
+  <modules>
+    <module>hyracks-hdfs-0.20.2</module>
+    <module>hyracks-hdfs-0.23.1</module>
+    <module>hyracks-hdfs-core</module>
+  </modules>
 </project>
diff --git a/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/api/IKeyValueParser.java b/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/api/IKeyValueParser.java
deleted file mode 100644
index 523786c..0000000
--- a/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/api/IKeyValueParser.java
+++ /dev/null
@@ -1,26 +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.hdfs.api;
-
-import edu.uci.ics.hyracks.api.comm.IFrameWriter;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
-
-public interface IKeyValueParser<K, V> {
-
-    public void parse(K key, V value, IFrameWriter writer) throws HyracksDataException;
-
-    public void flush(IFrameWriter writer) throws HyracksDataException;
-}
diff --git a/hyracks/hyracks-hdfs/src/test/resources/expected/part-0 b/hyracks/hyracks-hdfs/src/test/resources/expected/part-0
deleted file mode 100755
index 1e4c58b..0000000
--- a/hyracks/hyracks-hdfs/src/test/resources/expected/part-0
+++ /dev/null
@@ -1,77 +0,0 @@
-1|Customer#000000001|IVhzIApeRb ot,c,E|15|25-989-741-2988|711.56|BUILDING|to the even, regular platelets. regular, ironic epitaphs nag e|
-2|Customer#000000002|XSTf4,NCwDVaWNe6tEgvwfmRchLXak|13|23-768-687-3665|121.65|AUTOMOBILE|l accounts. blithely ironic theodolites integrate boldly: caref|
-3|Customer#000000003|MG9kdTD2WBHm|1|11-719-748-3364|7498.12|AUTOMOBILE| deposits eat slyly ironic, even instructions. express foxes detect slyly. blithely even accounts abov|
-4|Customer#000000004|XxVSJsLAGtn|4|14-128-190-5944|2866.83|MACHINERY| requests. final, regular ideas sleep final accou|
-5|Customer#000000005|KvpyuHCplrB84WgAiGV6sYpZq7Tj|3|13-750-942-6364|794.47|HOUSEHOLD|n accounts will have to unwind. foxes cajole accor|
-6|Customer#000000006|sKZz0CsnMD7mp4Xd0YrBvx,LREYKUWAh yVn|20|30-114-968-4951|7638.57|AUTOMOBILE|tions. even deposits boost according to the slyly bold packages. final accounts cajole requests. furious|
-7|Customer#000000007|TcGe5gaZNgVePxU5kRrvXBfkasDTea|18|28-190-982-9759|9561.95|AUTOMOBILE|ainst the ironic, express theodolites. express, even pinto beans among the exp|
-8|Customer#000000008|I0B10bB0AymmC, 0PrRYBCP1yGJ8xcBPmWhl5|17|27-147-574-9335|6819.74|BUILDING|among the slyly regular theodolites kindle blithely courts. carefully even theodolites haggle slyly along the ide|
-9|Customer#000000009|xKiAFTjUsCuxfeleNqefumTrjS|8|18-338-906-3675|8324.07|FURNITURE|r theodolites according to the requests wake thinly excuses: pending requests haggle furiousl|
-10|Customer#000000010|6LrEaV6KR6PLVcgl2ArL Q3rqzLzcT1 v2|5|15-741-346-9870|2753.54|HOUSEHOLD|es regular deposits haggle. fur|
-11|Customer#000000011|PkWS 3HlXqwTuzrKg633BEi|23|33-464-151-3439|-272.60|BUILDING|ckages. requests sleep slyly. quickly even pinto beans promise above the slyly regular pinto beans. |
-12|Customer#000000012|9PWKuhzT4Zr1Q|13|23-791-276-1263|3396.49|HOUSEHOLD| to the carefully final braids. blithely regular requests nag. ironic theodolites boost quickly along|
-13|Customer#000000013|nsXQu0oVjD7PM659uC3SRSp|3|13-761-547-5974|3857.34|BUILDING|ounts sleep carefully after the close frays. carefully bold notornis use ironic requests. blithely|
-14|Customer#000000014|KXkletMlL2JQEA |1|11-845-129-3851|5266.30|FURNITURE|, ironic packages across the unus|
-15|Customer#000000015|YtWggXoOLdwdo7b0y,BZaGUQMLJMX1Y,EC,6Dn|23|33-687-542-7601|2788.52|HOUSEHOLD| platelets. regular deposits detect asymptotes. blithely unusual packages nag slyly at the fluf|
-16|Customer#000000016|cYiaeMLZSMAOQ2 d0W,|10|20-781-609-3107|4681.03|FURNITURE|kly silent courts. thinly regular theodolites sleep fluffily after |
-17|Customer#000000017|izrh 6jdqtp2eqdtbkswDD8SG4SzXruMfIXyR7|2|12-970-682-3487|6.34|AUTOMOBILE|packages wake! blithely even pint|
-18|Customer#000000018|3txGO AiuFux3zT0Z9NYaFRnZt|6|16-155-215-1315|5494.43|BUILDING|s sleep. carefully even instructions nag furiously alongside of t|
-19|Customer#000000019|uc,3bHIx84H,wdrmLOjVsiqXCq2tr|18|28-396-526-5053|8914.71|HOUSEHOLD| nag. furiously careful packages are slyly at the accounts. furiously regular in|
-20|Customer#000000020|JrPk8Pqplj4Ne|22|32-957-234-8742|7603.40|FURNITURE|g alongside of the special excuses-- fluffily enticing packages wake |
-21|Customer#000000021|XYmVpr9yAHDEn|8|18-902-614-8344|1428.25|MACHINERY| quickly final accounts integrate blithely furiously u|
-22|Customer#000000022|QI6p41,FNs5k7RZoCCVPUTkUdYpB|3|13-806-545-9701|591.98|MACHINERY|s nod furiously above the furiously ironic ideas. |
-23|Customer#000000023|OdY W13N7Be3OC5MpgfmcYss0Wn6TKT|3|13-312-472-8245|3332.02|HOUSEHOLD|deposits. special deposits cajole slyly. fluffily special deposits about the furiously |
-24|Customer#000000024|HXAFgIAyjxtdqwimt13Y3OZO 4xeLe7U8PqG|13|23-127-851-8031|9255.67|MACHINERY|into beans. fluffily final ideas haggle fluffily|
-25|Customer#000000025|Hp8GyFQgGHFYSilH5tBfe|12|22-603-468-3533|7133.70|FURNITURE|y. accounts sleep ruthlessly according to the regular theodolites. unusual instructions sleep. ironic, final|
-26|Customer#000000026|8ljrc5ZeMl7UciP|22|32-363-455-4837|5182.05|AUTOMOBILE|c requests use furiously ironic requests. slyly ironic dependencies us|
-27|Customer#000000027|IS8GIyxpBrLpMT0u7|3|13-137-193-2709|5679.84|BUILDING| about the carefully ironic pinto beans. accoun|
-28|Customer#000000028|iVyg0daQ,Tha8x2WPWA9m2529m|8|18-774-241-1462|1007.18|FURNITURE| along the regular deposits. furiously final pac|
-29|Customer#000000029|sJ5adtfyAkCK63df2,vF25zyQMVYE34uh|0|10-773-203-7342|7618.27|FURNITURE|its after the carefully final platelets x-ray against |
-30|Customer#000000030|nJDsELGAavU63Jl0c5NKsKfL8rIJQQkQnYL2QJY|1|11-764-165-5076|9321.01|BUILDING|lithely final requests. furiously unusual account|
-31|Customer#000000031|LUACbO0viaAv6eXOAebryDB xjVst|23|33-197-837-7094|5236.89|HOUSEHOLD|s use among the blithely pending depo|
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-46|Customer#000000046|eaTXWWm10L9|6|16-357-681-2007|5744.59|AUTOMOBILE|ctions. accounts sleep furiously even requests. regular, regular accounts cajole blithely around the final pa|
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-48|Customer#000000048|0UU iPhBupFvemNB|0|10-508-348-5882|3792.50|BUILDING|re fluffily pending foxes. pending, bold platelets sleep slyly. even platelets cajo|
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-56|Customer#000000056|BJYZYJQk4yD5B|10|20-895-685-6920|6530.86|FURNITURE|. notornis wake carefully. carefully fluffy requests are furiously even accounts. slyly expre|
-57|Customer#000000057|97XYbsuOPRXPWU|21|31-835-306-1650|4151.93|AUTOMOBILE|ove the carefully special packages. even, unusual deposits sleep slyly pend|
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-59|Customer#000000059|zLOCP0wh92OtBihgspOGl4|1|11-355-584-3112|3458.60|MACHINERY|ously final packages haggle blithely after the express deposits. furiou|
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-63|Customer#000000063|IXRSpVWWZraKII|21|31-952-552-9584|9331.13|AUTOMOBILE|ithely even accounts detect slyly above the fluffily ir|
-64|Customer#000000064|MbCeGY20kaKK3oalJD,OT|3|13-558-731-7204|-646.64|BUILDING|structions after the quietly ironic theodolites cajole be|
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-67|Customer#000000067|rfG0cOgtr5W8 xILkwp9fpCS8|9|19-403-114-4356|8166.59|MACHINERY|indle furiously final, even theodo|
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-72|Customer#000000072|putjlmskxE,zs,HqeIA9Wqu7dhgH5BVCwDwHHcf|2|12-759-144-9689|-362.86|FURNITURE|ithely final foxes sleep always quickly bold accounts. final wat|
-73|Customer#000000073|8IhIxreu4Ug6tt5mog4|0|10-473-439-3214|4288.50|BUILDING|usual, unusual packages sleep busily along the furiou|
-74|Customer#000000074|IkJHCA3ZThF7qL7VKcrU nRLl,kylf |4|14-199-862-7209|2764.43|MACHINERY|onic accounts. blithely slow packages would haggle carefully. qui|
-75|Customer#000000075|Dh 6jZ,cwxWLKQfRKkiGrzv6pm|18|28-247-803-9025|6684.10|AUTOMOBILE| instructions cajole even, even deposits. finally bold deposits use above the even pains. slyl|
-76|Customer#000000076|m3sbCvjMOHyaOofH,e UkGPtqc4|0|10-349-718-3044|5745.33|FURNITURE|pecial deposits. ironic ideas boost blithely according to the closely ironic theodolites! furiously final deposits n|
-77|Customer#000000077|4tAE5KdMFGD4byHtXF92vx|17|27-269-357-4674|1738.87|BUILDING|uffily silent requests. carefully ironic asymptotes among the ironic hockey players are carefully bli|
diff --git a/hyracks/hyracks-hdfs/src/test/resources/expected/part-1 b/hyracks/hyracks-hdfs/src/test/resources/expected/part-1
deleted file mode 100755
index e7655d1..0000000
--- a/hyracks/hyracks-hdfs/src/test/resources/expected/part-1
+++ /dev/null
@@ -1,73 +0,0 @@
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-149|Customer#000000149|3byTHCp2mNLPigUrrq|19|29-797-439-6760|8959.65|AUTOMOBILE|al instructions haggle against the slyly bold w|
-150|Customer#000000150|zeoGShTjCwGPplOWFkLURrh41O0AZ8dwNEEN4 |18|28-328-564-7630|3849.48|MACHINERY|ole blithely among the furiously pending packages. furiously bold ideas wake fluffily ironic idea|