diff --git a/hyracks/hyracks-hdfs/pom.xml b/hyracks/hyracks-hdfs/pom.xml
index 105b700..b80dbd5 100644
--- a/hyracks/hyracks-hdfs/pom.xml
+++ b/hyracks/hyracks-hdfs/pom.xml
@@ -43,12 +43,12 @@
 						<fileset>
 							<directory>.</directory>
 							<includes>
-								<include>teststore*</include>
 								<include>edu*</include>
 								<include>actual*</include>
 								<include>build*</include>
 								<include>expect*</include>
 								<include>ClusterController*</include>
+								<include>edu.uci.*</include>
 							</includes>
 						</fileset>
 					</filesets>
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
index 523786c..5923e1e 100644
--- 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
@@ -18,9 +18,33 @@
 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/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/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/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/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/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/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/HDFSReadOperatorDescriptor.java b/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/HDFSReadOperatorDescriptor.java
index 50dac60..69936a4 100644
--- a/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/HDFSReadOperatorDescriptor.java
+++ b/hyracks/hyracks-hdfs/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;
@@ -37,11 +39,30 @@
 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 +73,8 @@
             throw new HyracksException(e);
         }
         this.scheduledLocations = scheduledLocations;
+        this.executed = new boolean[scheduledLocations.length];
+        Arrays.fill(executed, false);
         this.tupleParserFactory = tupleParserFactory;
         this.recordDescriptors[0] = rd;
     }
@@ -78,6 +101,22 @@
                          * 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;
+                                    System.out.println("thread " + Thread.currentThread().getId() + " setting " + i);
+                                } else {
+                                    continue;
+                                }
+                            }
+
+                            /**
+                             * read the split
+                             */
                             RecordReader reader = inputFormat.getRecordReader(inputSplits[i], conf, Reporter.NULL);
                             Object key = reader.createKey();
                             Object value = reader.createValue();
diff --git a/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/HDFSWriteOperatorDescriptor.java b/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/HDFSWriteOperatorDescriptor.java
index 740f90e..8fac758 100644
--- a/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/HDFSWriteOperatorDescriptor.java
+++ b/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/HDFSWriteOperatorDescriptor.java
@@ -45,6 +45,17 @@
     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);
diff --git a/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/lib/RawBinaryComparatorFactory.java b/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/lib/RawBinaryComparatorFactory.java
new file mode 100644
index 0000000..90c5977
--- /dev/null
+++ b/hyracks/hyracks-hdfs/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/src/main/java/edu/uci/ics/hyracks/hdfs/lib/RawBinaryHashFunctionFactory.java b/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/lib/RawBinaryHashFunctionFactory.java
new file mode 100644
index 0000000..7895fec
--- /dev/null
+++ b/hyracks/hyracks-hdfs/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/scheduler/Scheduler.java b/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/scheduler/Scheduler.java
index cb1db45..9fa74fa 100644
--- a/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/scheduler/Scheduler.java
+++ b/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/scheduler/Scheduler.java
@@ -35,7 +35,7 @@
 /**
  * The scheduler conduct data-local scheduling for data on HDFS
  */
-@SuppressWarnings({ "rawtypes", "deprecation" })
+@SuppressWarnings("deprecation")
 public class Scheduler {
 
     /** a list of NCs */
diff --git a/hyracks/hyracks-hdfs/src/test/java/edu/uci/ics/hyracks/hdfs/dataflow/DataflowTest.java b/hyracks/hyracks-hdfs/src/test/java/edu/uci/ics/hyracks/hdfs/dataflow/DataflowTest.java
index 2b83972..23e1344 100644
--- a/hyracks/hyracks-hdfs/src/test/java/edu/uci/ics/hyracks/hdfs/dataflow/DataflowTest.java
+++ b/hyracks/hyracks-hdfs/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;
@@ -126,23 +133,32 @@
         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,
@@ -167,8 +183,6 @@
 
         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/resources/expected/part-0 b/hyracks/hyracks-hdfs/src/test/resources/expected/part-0
index 1e4c58b..ce3b00c 100755
--- a/hyracks/hyracks-hdfs/src/test/resources/expected/part-0
+++ b/hyracks/hyracks-hdfs/src/test/resources/expected/part-0
@@ -1,22 +1,65 @@
-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|
+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|
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@@ -27,6 +70,7 @@
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@@ -37,6 +81,7 @@
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@@ -47,6 +92,7 @@
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@@ -57,6 +103,7 @@
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@@ -67,6 +114,7 @@
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@@ -75,3 +123,28 @@
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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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-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|
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-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|
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-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|
-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|
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-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|
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-108|Customer#000000108|GPoeEvpKo1|5|15-908-619-7526|2259.38|BUILDING|refully ironic deposits sleep. regular, unusual requests wake slyly|
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-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|
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-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|
-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|
-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, |
-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|
-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|
diff --git a/hyracks/hyracks-hdfs/src/test/resources/hadoop/conf/mapred-site.xml b/hyracks/hyracks-hdfs/src/test/resources/hadoop/conf/mapred-site.xml
index 2904fef..a8680ec 100644
--- a/hyracks/hyracks-hdfs/src/test/resources/hadoop/conf/mapred-site.xml
+++ b/hyracks/hyracks-hdfs/src/test/resources/hadoop/conf/mapred-site.xml
@@ -19,7 +19,7 @@
    </property>
    <property>
       <name>mapred.min.split.size</name>
-      <value>8192</value>
+      <value>2048</value>
    </property>
 
 </configuration>