diff --git a/hyracks/hyracks-hdfs/pom.xml b/hyracks/hyracks-hdfs/pom.xml
new file mode 100644
index 0000000..105b700
--- /dev/null
+++ b/hyracks/hyracks-hdfs/pom.xml
@@ -0,0 +1,118 @@
+<?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>
+
+	<artifactId>hyracks-hdfs</artifactId>
+	<name>hyracks-hdfs</name>
+
+	<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>
+</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
new file mode 100644
index 0000000..523786c
--- /dev/null
+++ b/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/api/IKeyValueParser.java
@@ -0,0 +1,26 @@
+/*
+ * 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/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
new file mode 100644
index 0000000..cc16087
--- /dev/null
+++ b/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/api/IKeyValueParserFactory.java
@@ -0,0 +1,26 @@
+/*
+ * 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 java.io.Serializable;
+
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+
+public interface IKeyValueParserFactory<K, V> extends Serializable {
+
+    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
new file mode 100644
index 0000000..05bb102
--- /dev/null
+++ b/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/api/ITupleWriter.java
@@ -0,0 +1,27 @@
+/*
+ * 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 java.io.DataOutput;
+
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
+
+public interface ITupleWriter {
+
+    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
new file mode 100644
index 0000000..35313f9
--- /dev/null
+++ b/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/api/ITupleWriterFactory.java
@@ -0,0 +1,24 @@
+/*
+ * 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 java.io.Serializable;
+
+public interface ITupleWriterFactory extends Serializable {
+
+    public ITupleWriter getTupleWriter();
+
+}
diff --git a/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/ConfFactory.java b/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/ConfFactory.java
new file mode 100644
index 0000000..4fa0164
--- /dev/null
+++ b/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/ConfFactory.java
@@ -0,0 +1,41 @@
+package edu.uci.ics.hyracks.hdfs.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.mapred.JobConf;
+
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+
+@SuppressWarnings("deprecation")
+public class ConfFactory implements Serializable {
+    private static final long serialVersionUID = 1L;
+    private byte[] confBytes;
+
+    public ConfFactory(JobConf conf) throws HyracksDataException {
+        try {
+            ByteArrayOutputStream bos = new ByteArrayOutputStream();
+            DataOutputStream dos = new DataOutputStream(bos);
+            conf.write(dos);
+            confBytes = bos.toByteArray();
+            dos.close();
+        } catch (Exception e) {
+            throw new HyracksDataException(e);
+        }
+    }
+
+    public JobConf getConf() throws HyracksDataException {
+        try {
+            JobConf conf = new JobConf();
+            DataInputStream dis = new DataInputStream(new ByteArrayInputStream(confBytes));
+            conf.readFields(dis);
+            dis.close();
+            return conf;
+        } catch (Exception e) {
+            throw new HyracksDataException(e);
+        }
+    }
+}
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
new file mode 100644
index 0000000..50dac60
--- /dev/null
+++ b/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/HDFSReadOperatorDescriptor.java
@@ -0,0 +1,97 @@
+/*
+ * 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.dataflow;
+
+import org.apache.hadoop.mapred.InputFormat;
+import org.apache.hadoop.mapred.InputSplit;
+import org.apache.hadoop.mapred.JobConf;
+import org.apache.hadoop.mapred.RecordReader;
+import org.apache.hadoop.mapred.Reporter;
+
+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.api.IKeyValueParser;
+import edu.uci.ics.hyracks.hdfs.api.IKeyValueParserFactory;
+
+@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;
+
+    public HDFSReadOperatorDescriptor(JobSpecification spec, RecordDescriptor rd, JobConf conf, InputSplit[] splits,
+            String[] scheduledLocations, IKeyValueParserFactory tupleParserFactory) throws HyracksException {
+        super(spec, 0, 1);
+        try {
+            this.splitsFactory = new InputSplitsFactory(splits);
+            this.confFactory = new ConfFactory(conf);
+        } catch (Exception e) {
+            throw new HyracksException(e);
+        }
+        this.scheduledLocations = scheduledLocations;
+        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 InputSplit[] inputSplits = splitsFactory.getSplits();
+        final JobConf conf = confFactory.getConf();
+
+        return new AbstractUnaryOutputSourceOperatorNodePushable() {
+            private String nodeName = ctx.getJobletContext().getApplicationContext().getNodeId();
+
+            @SuppressWarnings("unchecked")
+            @Override
+            public void initialize() throws HyracksDataException {
+                try {
+                    IKeyValueParser parser = tupleParserFactory.createKeyValueParser(ctx);
+                    writer.open();
+                    InputFormat inputFormat = conf.getInputFormat();
+                    for (int i = 0; i < inputSplits.length; i++) {
+                        /**
+                         * read all the partitions scheduled to the current node
+                         */
+                        if (scheduledLocations[i].equals(nodeName)) {
+                            RecordReader reader = inputFormat.getRecordReader(inputSplits[i], conf, Reporter.NULL);
+                            Object key = reader.createKey();
+                            Object value = reader.createValue();
+                            while (reader.next(key, value) == true) {
+                                parser.parse(key, value, writer);
+                            }
+                        }
+                    }
+                    parser.flush(writer);
+                    writer.close();
+                } catch (Exception e) {
+                    throw new HyracksDataException(e);
+                }
+            }
+        };
+    }
+}
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
new file mode 100644
index 0000000..740f90e
--- /dev/null
+++ b/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/HDFSWriteOperatorDescriptor.java
@@ -0,0 +1,108 @@
+/*
+ * 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.dataflow;
+
+import java.io.File;
+import java.nio.ByteBuffer;
+
+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 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.common.comm.io.FrameTupleAccessor;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.FrameTupleReference;
+import edu.uci.ics.hyracks.dataflow.std.base.AbstractSingleActivityOperatorDescriptor;
+import edu.uci.ics.hyracks.dataflow.std.base.AbstractUnaryInputSinkOperatorNodePushable;
+import edu.uci.ics.hyracks.hdfs.api.ITupleWriter;
+import edu.uci.ics.hyracks.hdfs.api.ITupleWriterFactory;
+
+@SuppressWarnings("deprecation")
+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)
+            throws HyracksException {
+        super(spec, 1, 0);
+        this.confFactory = new ConfFactory(conf);
+        this.tupleWriterFactory = tupleWriterFactory;
+    }
+
+    @Override
+    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;
+
+            @Override
+            public void open() throws HyracksDataException {
+                tupleWriter = tupleWriterFactory.getTupleWriter();
+                try {
+                    FileSystem dfs = FileSystem.get(conf);
+                    dos = dfs.create(new Path(fileName), true);
+                } catch (Exception e) {
+                    throw new HyracksDataException(e);
+                }
+            }
+
+            @Override
+            public void nextFrame(ByteBuffer buffer) throws HyracksDataException {
+                accessor.reset(buffer);
+                int tupleCount = accessor.getTupleCount();
+                for (int i = 0; i < tupleCount; i++) {
+                    tuple.reset(accessor, i);
+                    tupleWriter.write(dos, tuple);
+                }
+            }
+
+            @Override
+            public void fail() throws HyracksDataException {
+
+            }
+
+            @Override
+            public void close() throws HyracksDataException {
+                try {
+                    dos.close();
+                } catch (Exception e) {
+                    throw new HyracksDataException(e);
+                }
+            }
+
+        };
+    }
+}
diff --git a/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/InputSplitsFactory.java b/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/InputSplitsFactory.java
new file mode 100644
index 0000000..9cc9ebc
--- /dev/null
+++ b/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/dataflow/InputSplitsFactory.java
@@ -0,0 +1,103 @@
+/*
+ * 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.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 org.apache.hadoop.mapred.InputSplit;
+
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+
+@SuppressWarnings({ "deprecation", "rawtypes" })
+public class InputSplitsFactory implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+    private byte[] splitBytes;
+    private String splitClassName;
+
+    public InputSplitsFactory(InputSplit[] splits) throws HyracksDataException {
+        splitBytes = splitsToBytes(splits);
+        if (splits.length > 0) {
+            splitClassName = splits[0].getClass().getName();
+        }
+    }
+
+    public InputSplit[] 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(InputSplit[] splits) throws HyracksDataException {
+        try {
+            ByteArrayOutputStream bos = new ByteArrayOutputStream();
+            DataOutputStream dos = new DataOutputStream(bos);
+            dos.writeInt(splits.length);
+            for (int i = 0; i < splits.length; i++) {
+                splits[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 InputSplit[] 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();
+            InputSplit[] splits = new InputSplit[size];
+            for (int i = 0; i < size; i++) {
+                splits[i] = (InputSplit) defaultConstructor.newInstance();
+                splits[i].readFields(dis);
+            }
+            dis.close();
+            return splits;
+        } catch (Exception e) {
+            throw new HyracksDataException(e);
+        }
+    }
+}
diff --git a/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/lib/TextKeyValueParserFactory.java b/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/lib/TextKeyValueParserFactory.java
new file mode 100644
index 0000000..c691f5d
--- /dev/null
+++ b/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/lib/TextKeyValueParserFactory.java
@@ -0,0 +1,66 @@
+/*
+ * 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.lib;
+
+import java.nio.ByteBuffer;
+
+import org.apache.hadoop.io.LongWritable;
+import org.apache.hadoop.io.Text;
+
+import edu.uci.ics.hyracks.api.comm.IFrameWriter;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.dataflow.common.comm.io.ArrayTupleBuilder;
+import edu.uci.ics.hyracks.dataflow.common.comm.io.FrameTupleAppender;
+import edu.uci.ics.hyracks.dataflow.common.comm.util.FrameUtils;
+import edu.uci.ics.hyracks.hdfs.api.IKeyValueParser;
+import edu.uci.ics.hyracks.hdfs.api.IKeyValueParserFactory;
+
+public class TextKeyValueParserFactory implements IKeyValueParserFactory<LongWritable, Text> {
+    private static final long serialVersionUID = 1L;
+
+    @Override
+    public IKeyValueParser<LongWritable, Text> createKeyValueParser(final IHyracksTaskContext ctx) {
+
+        final ArrayTupleBuilder tb = new ArrayTupleBuilder(1);
+        final ByteBuffer buffer = ctx.allocateFrame();
+        final FrameTupleAppender appender = new FrameTupleAppender(ctx.getFrameSize());
+        appender.reset(buffer, true);
+
+        return new IKeyValueParser<LongWritable, Text>() {
+
+            @Override
+            public void parse(LongWritable key, Text value, IFrameWriter writer) throws HyracksDataException {
+                tb.reset();
+                tb.addField(value.getBytes(), 0, value.getLength());
+                if (!appender.append(tb.getFieldEndOffsets(), tb.getByteArray(), 0, tb.getSize())) {
+                    FrameUtils.flushFrame(buffer, writer);
+                    appender.reset(buffer, true);
+                    if (!appender.append(tb.getFieldEndOffsets(), tb.getByteArray(), 0, tb.getSize())) {
+                        throw new HyracksDataException("tuple cannot be appended into the frame");
+                    }
+                }
+            }
+
+            @Override
+            public void flush(IFrameWriter writer) throws HyracksDataException {
+                FrameUtils.flushFrame(buffer, writer);
+            }
+
+        };
+    }
+
+}
diff --git a/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/lib/TextTupleWriterFactory.java b/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/lib/TextTupleWriterFactory.java
new file mode 100644
index 0000000..d26721d
--- /dev/null
+++ b/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/lib/TextTupleWriterFactory.java
@@ -0,0 +1,49 @@
+/*
+ * 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.lib;
+
+import java.io.DataOutput;
+
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
+import edu.uci.ics.hyracks.hdfs.api.ITupleWriter;
+import edu.uci.ics.hyracks.hdfs.api.ITupleWriterFactory;
+
+public class TextTupleWriterFactory implements ITupleWriterFactory {
+    private static final long serialVersionUID = 1L;
+
+    @Override
+    public ITupleWriter getTupleWriter() {
+        return new ITupleWriter() {
+            byte newLine = "\n".getBytes()[0];
+
+            @Override
+            public void write(DataOutput output, ITupleReference tuple) throws HyracksDataException {
+                byte[] data = tuple.getFieldData(0);
+                int start = tuple.getFieldStart(0);
+                int len = tuple.getFieldLength(0);
+                try {
+                    output.write(data, start, len);
+                    output.writeByte(newLine);
+                } catch (Exception e) {
+                    throw new HyracksDataException(e);
+                }
+            }
+
+        };
+    }
+
+}
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
new file mode 100644
index 0000000..cb1db45
--- /dev/null
+++ b/hyracks/hyracks-hdfs/src/main/java/edu/uci/ics/hyracks/hdfs/scheduler/Scheduler.java
@@ -0,0 +1,209 @@
+/*
+ * 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.scheduler;
+
+import java.io.IOException;
+import java.net.InetAddress;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Random;
+
+import org.apache.hadoop.mapred.InputSplit;
+
+import edu.uci.ics.hyracks.api.client.HyracksConnection;
+import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
+import edu.uci.ics.hyracks.api.client.NodeControllerInfo;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.api.exceptions.HyracksException;
+
+/**
+ * The scheduler conduct data-local scheduling for data on HDFS
+ */
+@SuppressWarnings({ "rawtypes", "deprecation" })
+public class Scheduler {
+
+    /** a list of NCs */
+    private String[] NCs;
+
+    /** a map from ip to NCs */
+    private Map<String, List<String>> ipToNcMapping = new HashMap<String, List<String>>();
+
+    /** a map from the NC name to the index */
+    private Map<String, Integer> ncNameToIndex = new HashMap<String, Integer>();
+
+    /**
+     * The constructor of the scheduler
+     * 
+     * @param ncNameToNcInfos
+     * @throws HyracksException
+     */
+    public Scheduler(String ipAddress, int port) throws HyracksException {
+        try {
+            IHyracksClientConnection hcc = new HyracksConnection(ipAddress, port);
+            Map<String, NodeControllerInfo> ncNameToNcInfos = hcc.getNodeControllerInfos();
+            loadIPAddressToNCMap(ncNameToNcInfos);
+        } catch (Exception e) {
+            throw new HyracksException(e);
+        }
+    }
+
+    public Scheduler(Map<String, NodeControllerInfo> ncNameToNcInfos) throws HyracksException {
+        loadIPAddressToNCMap(ncNameToNcInfos);
+    }
+
+    /**
+     * Set location constraints for a file scan operator with a list of file splits
+     * 
+     * @throws HyracksDataException
+     */
+    public String[] getLocationConstraints(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
+                / capacity.length + 1);
+
+        try {
+            Random random = new Random(System.currentTimeMillis());
+            boolean scheduled[] = new boolean[splits.length];
+            Arrays.fill(scheduled, false);
+
+            for (int i = 0; i < splits.length; i++) {
+                /**
+                 * get the location of all the splits
+                 */
+                String[] loc = splits[i].getLocations();
+                if (loc.length > 0) {
+                    for (int j = 0; j < loc.length; j++) {
+                        /**
+                         * get all the IP addresses from the name
+                         */
+                        InetAddress[] allIps = InetAddress.getAllByName(loc[j]);
+                        /**
+                         * iterate overa all ips
+                         */
+                        for (InetAddress ip : allIps) {
+                            /**
+                             * if the node controller exists
+                             */
+                            if (ipToNcMapping.get(ip.getHostAddress()) != null) {
+                                /**
+                                 * set the ncs
+                                 */
+                                List<String> dataLocations = ipToNcMapping.get(ip.getHostAddress());
+                                int arrayPos = random.nextInt(dataLocations.size());
+                                String nc = dataLocations.get(arrayPos);
+                                int pos = ncNameToIndex.get(nc);
+                                /**
+                                 * check if the node is already full
+                                 */
+                                if (capacity[pos] < slots) {
+                                    locations[i] = nc;
+                                    capacity[pos]++;
+                                    scheduled[i] = true;
+                                }
+                            }
+                        }
+
+                        /**
+                         * break the loop for data-locations if the schedule has already been found
+                         */
+                        if (scheduled[i] == true) {
+                            break;
+                        }
+                    }
+                }
+            }
+
+            /**
+             * find the lowest index the current available NCs
+             */
+            int currentAvailableNC = 0;
+            for (int i = 0; i < capacity.length; i++) {
+                if (capacity[i] < slots) {
+                    currentAvailableNC = i;
+                    break;
+                }
+            }
+
+            /**
+             * schedule no-local file reads
+             */
+            for (int i = 0; i < splits.length; i++) {
+                // if there is no data-local NC choice, choose a random one
+                if (!scheduled[i]) {
+                    locations[i] = NCs[currentAvailableNC];
+                    capacity[currentAvailableNC]++;
+                    scheduled[i] = true;
+
+                    /**
+                     * move the available NC cursor to the next one
+                     */
+                    for (int j = currentAvailableNC; j < capacity.length; j++) {
+                        if (capacity[j] < slots) {
+                            currentAvailableNC = j;
+                            break;
+                        }
+                    }
+                }
+            }
+            return locations;
+        } catch (IOException e) {
+            throw new HyracksException(e);
+        }
+    }
+
+    /**
+     * Load the IP-address-to-NC map from the NCNameToNCInfoMap
+     * 
+     * @param ncNameToNcInfos
+     * @throws HyracksException
+     */
+    private void loadIPAddressToNCMap(Map<String, NodeControllerInfo> ncNameToNcInfos) throws HyracksException {
+        try {
+            NCs = new String[ncNameToNcInfos.size()];
+            int i = 0;
+
+            /**
+             * build the IP address to NC map
+             */
+            for (Map.Entry<String, NodeControllerInfo> entry : ncNameToNcInfos.entrySet()) {
+                String ipAddr = InetAddress.getByAddress(entry.getValue().getNetworkAddress().getIpAddress())
+                        .getHostAddress();
+                List<String> matchedNCs = ipToNcMapping.get(ipAddr);
+                if (matchedNCs == null) {
+                    matchedNCs = new ArrayList<String>();
+                    ipToNcMapping.put(ipAddr, matchedNCs);
+                }
+                matchedNCs.add(entry.getKey());
+                NCs[i] = entry.getKey();
+                i++;
+            }
+
+            /**
+             * set up the NC name to index mapping
+             */
+            for (i = 0; i < NCs.length; i++) {
+                ncNameToIndex.put(NCs[i], i);
+            }
+        } 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/src/test/java/edu/uci/ics/hyracks/hdfs/dataflow/DataflowTest.java
new file mode 100644
index 0000000..bf94cbd
--- /dev/null
+++ b/hyracks/hyracks-hdfs/src/test/java/edu/uci/ics/hyracks/hdfs/dataflow/DataflowTest.java
@@ -0,0 +1,186 @@
+/*
+ * 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.dataflow;
+
+import java.io.DataOutputStream;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+
+import junit.framework.Assert;
+import junit.framework.TestCase;
+
+import org.apache.commons.io.FileUtils;
+import org.apache.hadoop.conf.Configuration;
+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 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.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.std.connectors.OneToOneConnectorDescriptor;
+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;
+
+/**
+ * Test the edu.uci.ics.hyracks.hdfs.dataflow package
+ */
+@SuppressWarnings({ "deprecation" })
+public class DataflowTest extends TestCase {
+
+    private static final String ACTUAL_RESULT_DIR = "actual";
+    private static final String EXPECTED_RESULT_PATH = "src/test/resources/expected";
+    private static final String PATH_TO_HADOOP_CONF = "src/test/resources/hadoop/conf";
+
+    private static final String DATA_PATH = "src/test/resources/data/customer.tbl";
+    private static final String HDFS_INPUT_PATH = "/customer/";
+    private static final String HDFS_OUTPUT_PATH = "/customer_result/";
+
+    private static final String HADOOP_CONF_PATH = ACTUAL_RESULT_DIR + File.separator + "conf.xml";
+    private MiniDFSCluster dfsCluster;
+
+    private JobConf conf = new JobConf();
+    private int numberOfNC = 2;
+
+    @Override
+    public void setUp() throws Exception {
+        cleanupStores();
+        HyracksUtils.init();
+        FileUtils.forceMkdir(new File(ACTUAL_RESULT_DIR));
+        FileUtils.cleanDirectory(new File(ACTUAL_RESULT_DIR));
+        startHDFS();
+    }
+
+    private void cleanupStores() throws IOException {
+        FileUtils.forceMkdir(new File("teststore"));
+        FileUtils.forceMkdir(new File("build"));
+        FileUtils.cleanDirectory(new File("teststore"));
+        FileUtils.cleanDirectory(new File("build"));
+    }
+
+    /**
+     * Start the HDFS cluster and setup the data files
+     * 
+     * @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"));
+
+        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);
+        Path src = new Path(DATA_PATH);
+        Path dest = new Path(HDFS_INPUT_PATH);
+        Path result = new Path(HDFS_OUTPUT_PATH);
+        dfs.mkdirs(dest);
+        dfs.mkdirs(result);
+        dfs.copyFromLocalFile(src, dest);
+
+        DataOutputStream confOutput = new DataOutputStream(new FileOutputStream(new File(HADOOP_CONF_PATH)));
+        conf.writeXml(confOutput);
+        confOutput.flush();
+        confOutput.close();
+    }
+
+    /**
+     * Test a job with only HDFS read and writes.
+     * 
+     * @throws Exception
+     */
+    public void testHDFSReadWriteOperators() throws Exception {
+        FileInputFormat.setInputPaths(conf, HDFS_INPUT_PATH);
+        FileOutputFormat.setOutputPath(conf, new Path(HDFS_OUTPUT_PATH));
+        conf.setInputFormat(TextInputFormat.class);
+
+        Scheduler scheduler = new Scheduler(HyracksUtils.CC_HOST, HyracksUtils.TEST_HYRACKS_CC_CLIENT_PORT);
+        InputSplit[] splits = conf.getInputFormat().getSplits(conf, numberOfNC);
+
+        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 };
+        HDFSReadOperatorDescriptor readOperator = new HDFSReadOperatorDescriptor(jobSpec, recordDesc, conf, splits,
+                readSchedule, new TextKeyValueParserFactory());
+        PartitionConstraintHelper.addAbsoluteLocationConstraint(jobSpec, readOperator, locations);
+
+        HDFSWriteOperatorDescriptor writeOperator = new HDFSWriteOperatorDescriptor(jobSpec, conf,
+                new TextTupleWriterFactory());
+        PartitionConstraintHelper.addAbsoluteLocationConstraint(jobSpec, writeOperator, locations);
+
+        jobSpec.connect(new OneToOneConnectorDescriptor(jobSpec), readOperator, 0, writeOperator, 0);
+        jobSpec.addRoot(writeOperator);
+
+        IHyracksClientConnection client = new HyracksConnection(HyracksUtils.CC_HOST,
+                HyracksUtils.TEST_HYRACKS_CC_CLIENT_PORT);
+        JobId jobId = client.startJob(jobSpec);
+        client.waitForCompletion(jobId);
+
+        Assert.assertEquals(true, checkResults());
+    }
+
+    /**
+     * Check if the results are correct
+     * 
+     * @return true if correct
+     * @throws Exception
+     */
+    private boolean checkResults() throws Exception {
+        FileSystem dfs = FileSystem.get(conf);
+        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;
+    }
+
+    /**
+     * cleanup hdfs cluster
+     */
+    private void cleanupHDFS() throws Exception {
+        dfsCluster.shutdown();
+    }
+
+    @Override
+    public void tearDown() throws Exception {
+        HyracksUtils.deinit();
+        cleanupHDFS();
+    }
+
+}
diff --git a/hyracks/hyracks-hdfs/src/test/java/edu/uci/ics/hyracks/hdfs/scheduler/SchedulerTest.java b/hyracks/hyracks-hdfs/src/test/java/edu/uci/ics/hyracks/hdfs/scheduler/SchedulerTest.java
new file mode 100644
index 0000000..4b8a278
--- /dev/null
+++ b/hyracks/hyracks-hdfs/src/test/java/edu/uci/ics/hyracks/hdfs/scheduler/SchedulerTest.java
@@ -0,0 +1,210 @@
+/*
+ * 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.scheduler;
+
+import java.net.InetAddress;
+import java.util.HashMap;
+import java.util.Map;
+
+import junit.framework.Assert;
+import junit.framework.TestCase;
+
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.mapred.FileSplit;
+import org.apache.hadoop.mapred.InputSplit;
+
+import edu.uci.ics.hyracks.api.client.NodeControllerInfo;
+import edu.uci.ics.hyracks.api.client.NodeStatus;
+import edu.uci.ics.hyracks.api.comm.NetworkAddress;
+
+@SuppressWarnings("deprecation")
+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)));
+
+        InputSplit[] fileSplits = new InputSplit[6];
+        fileSplits[0] = new FileSplit(new Path("part-1"), 0, 0, new String[] { "10.0.0.1", "10.0.0.2", "10.0.0.3" });
+        fileSplits[1] = new FileSplit(new Path("part-2"), 0, 0, new String[] { "10.0.0.3", "10.0.0.4", "10.0.0.5" });
+        fileSplits[2] = new FileSplit(new Path("part-3"), 0, 0, new String[] { "10.0.0.4", "10.0.0.5", "10.0.0.6" });
+        fileSplits[3] = new FileSplit(new Path("part-4"), 0, 0, new String[] { "10.0.0.2", "10.0.0.1", "10.0.0.6" });
+        fileSplits[4] = new FileSplit(new Path("part-5"), 0, 0, new String[] { "10.0.0.3", "10.0.0.4", "10.0.0.5" });
+        fileSplits[5] = 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)));
+
+        InputSplit[] fileSplits = new InputSplit[12];
+        fileSplits[0] = new FileSplit(new Path("part-1"), 0, 0, new String[] { "10.0.0.1", "10.0.0.2", "10.0.0.3" });
+        fileSplits[1] = new FileSplit(new Path("part-2"), 0, 0, new String[] { "10.0.0.3", "10.0.0.4", "10.0.0.5" });
+        fileSplits[2] = new FileSplit(new Path("part-3"), 0, 0, new String[] { "10.0.0.4", "10.0.0.5", "10.0.0.6" });
+        fileSplits[3] = new FileSplit(new Path("part-4"), 0, 0, new String[] { "10.0.0.2", "10.0.0.1", "10.0.0.6" });
+        fileSplits[4] = new FileSplit(new Path("part-5"), 0, 0, new String[] { "10.0.0.3", "10.0.0.4", "10.0.0.5" });
+        fileSplits[5] = new FileSplit(new Path("part-6"), 0, 0, new String[] { "10.0.0.2", "10.0.0.3", "10.0.0.5" });
+        fileSplits[6] = new FileSplit(new Path("part-7"), 0, 0, new String[] { "10.0.0.1", "10.0.0.2", "10.0.0.3" });
+        fileSplits[7] = new FileSplit(new Path("part-8"), 0, 0, new String[] { "10.0.0.3", "10.0.0.4", "10.0.0.5" });
+        fileSplits[8] = new FileSplit(new Path("part-9"), 0, 0, new String[] { "10.0.0.4", "10.0.0.5", "10.0.0.6" });
+        fileSplits[9] = new FileSplit(new Path("part-10"), 0, 0, new String[] { "10.0.0.2", "10.0.0.1", "10.0.0.6" });
+        fileSplits[10] = new FileSplit(new Path("part-11"), 0, 0, new String[] { "10.0.0.3", "10.0.0.4", "10.0.0.7" });
+        fileSplits[11] = 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)));
+
+        InputSplit[] fileSplits = new InputSplit[12];
+        fileSplits[0] = new FileSplit(new Path("part-1"), 0, 0, new String[] { "10.0.0.1", "10.0.0.2", "10.0.0.3" });
+        fileSplits[1] = new FileSplit(new Path("part-2"), 0, 0, new String[] { "10.0.0.3", "10.0.0.4", "10.0.0.5" });
+        fileSplits[2] = new FileSplit(new Path("part-3"), 0, 0, new String[] { "10.0.0.4", "10.0.0.5", "10.0.0.3" });
+        fileSplits[3] = new FileSplit(new Path("part-4"), 0, 0, new String[] { "10.0.0.2", "10.0.0.1", "10.0.0.3" });
+        fileSplits[4] = new FileSplit(new Path("part-5"), 0, 0, new String[] { "10.0.0.3", "10.0.0.4", "10.0.0.5" });
+        fileSplits[5] = new FileSplit(new Path("part-6"), 0, 0, new String[] { "10.0.0.2", "10.0.0.3", "10.0.0.5" });
+        fileSplits[6] = new FileSplit(new Path("part-7"), 0, 0, new String[] { "10.0.0.1", "10.0.0.2", "10.0.0.3" });
+        fileSplits[7] = new FileSplit(new Path("part-8"), 0, 0, new String[] { "10.0.0.3", "10.0.0.4", "10.0.0.5" });
+        fileSplits[8] = new FileSplit(new Path("part-9"), 0, 0, new String[] { "10.0.0.4", "10.0.0.5", "10.0.0.1" });
+        fileSplits[9] = new FileSplit(new Path("part-10"), 0, 0, new String[] { "10.0.0.2", "10.0.0.1", "10.0.0.2" });
+        fileSplits[10] = new FileSplit(new Path("part-11"), 0, 0, new String[] { "10.0.0.3", "10.0.0.4", "10.0.0.5" });
+        fileSplits[11] = 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)));
+
+        InputSplit[] fileSplits = new InputSplit[13];
+        fileSplits[0] = new FileSplit(new Path("part-1"), 0, 0, new String[] { "10.0.0.1", "10.0.0.2", "10.0.0.3" });
+        fileSplits[1] = new FileSplit(new Path("part-2"), 0, 0, new String[] { "10.0.0.3", "10.0.0.4", "10.0.0.5" });
+        fileSplits[2] = new FileSplit(new Path("part-3"), 0, 0, new String[] { "10.0.0.4", "10.0.0.5", "10.0.0.3" });
+        fileSplits[3] = new FileSplit(new Path("part-4"), 0, 0, new String[] { "10.0.0.2", "10.0.0.1", "10.0.0.3" });
+        fileSplits[4] = new FileSplit(new Path("part-5"), 0, 0, new String[] { "10.0.0.3", "10.0.0.4", "10.0.0.5" });
+        fileSplits[5] = new FileSplit(new Path("part-6"), 0, 0, new String[] { "10.0.0.2", "10.0.0.3", "10.0.0.5" });
+        fileSplits[6] = new FileSplit(new Path("part-7"), 0, 0, new String[] { "10.0.0.1", "10.0.0.2", "10.0.0.3" });
+        fileSplits[7] = new FileSplit(new Path("part-8"), 0, 0, new String[] { "10.0.0.3", "10.0.0.4", "10.0.0.5" });
+        fileSplits[8] = new FileSplit(new Path("part-9"), 0, 0, new String[] { "10.0.0.4", "10.0.0.5", "10.0.0.1" });
+        fileSplits[9] = new FileSplit(new Path("part-10"), 0, 0, new String[] { "10.0.0.2", "10.0.0.1", "10.0.0.2" });
+        fileSplits[10] = new FileSplit(new Path("part-11"), 0, 0, new String[] { "10.0.0.3", "10.0.0.4", "10.0.0.5" });
+        fileSplits[11] = new FileSplit(new Path("part-12"), 0, 0, new String[] { "10.0.0.2", "10.0.0.3", "10.0.0.5" });
+        fileSplits[12] = 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/java/edu/uci/ics/hyracks/hdfs/utils/HyracksUtils.java b/hyracks/hyracks-hdfs/src/test/java/edu/uci/ics/hyracks/hdfs/utils/HyracksUtils.java
new file mode 100644
index 0000000..30dbb80
--- /dev/null
+++ b/hyracks/hyracks-hdfs/src/test/java/edu/uci/ics/hyracks/hdfs/utils/HyracksUtils.java
@@ -0,0 +1,96 @@
+/*
+ * 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.utils;
+
+import java.util.EnumSet;
+
+import edu.uci.ics.hyracks.api.client.HyracksConnection;
+import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
+import edu.uci.ics.hyracks.api.job.JobFlag;
+import edu.uci.ics.hyracks.api.job.JobId;
+import edu.uci.ics.hyracks.api.job.JobSpecification;
+import edu.uci.ics.hyracks.control.cc.ClusterControllerService;
+import edu.uci.ics.hyracks.control.common.controllers.CCConfig;
+import edu.uci.ics.hyracks.control.common.controllers.NCConfig;
+import edu.uci.ics.hyracks.control.nc.NodeControllerService;
+
+public class HyracksUtils {
+
+    public static final String NC1_ID = "nc1";
+    public static final String NC2_ID = "nc2";
+
+    public static final int DEFAULT_HYRACKS_CC_PORT = 1099;
+    public static final int TEST_HYRACKS_CC_PORT = 1099;
+    public static final int TEST_HYRACKS_CC_CLIENT_PORT = 2099;
+    public static final String CC_HOST = "localhost";
+
+    public static final int FRAME_SIZE = 65536;
+
+    private static ClusterControllerService cc;
+    private static NodeControllerService nc1;
+    private static NodeControllerService nc2;
+    private static IHyracksClientConnection hcc;
+
+    public static void init() throws Exception {
+        CCConfig ccConfig = new CCConfig();
+        ccConfig.clientNetIpAddress = CC_HOST;
+        ccConfig.clusterNetIpAddress = CC_HOST;
+        ccConfig.clusterNetPort = TEST_HYRACKS_CC_PORT;
+        ccConfig.clientNetPort = TEST_HYRACKS_CC_CLIENT_PORT;
+        ccConfig.defaultMaxJobAttempts = 0;
+        ccConfig.jobHistorySize = 0;
+        ccConfig.profileDumpPeriod = -1;
+
+        // cluster controller
+        cc = new ClusterControllerService(ccConfig);
+        cc.start();
+
+        // two node controllers
+        NCConfig ncConfig1 = new NCConfig();
+        ncConfig1.ccHost = "localhost";
+        ncConfig1.clusterNetIPAddress = "localhost";
+        ncConfig1.ccPort = TEST_HYRACKS_CC_PORT;
+        ncConfig1.dataIPAddress = "127.0.0.1";
+        ncConfig1.nodeId = NC1_ID;
+        nc1 = new NodeControllerService(ncConfig1);
+        nc1.start();
+
+        NCConfig ncConfig2 = new NCConfig();
+        ncConfig2.ccHost = "localhost";
+        ncConfig2.clusterNetIPAddress = "localhost";
+        ncConfig2.ccPort = TEST_HYRACKS_CC_PORT;
+        ncConfig2.dataIPAddress = "127.0.0.1";
+        ncConfig2.nodeId = NC2_ID;
+        nc2 = new NodeControllerService(ncConfig2);
+        nc2.start();
+
+        // hyracks connection
+        hcc = new HyracksConnection(CC_HOST, TEST_HYRACKS_CC_CLIENT_PORT);
+    }
+
+    public static void deinit() throws Exception {
+        nc2.stop();
+        nc1.stop();
+        cc.stop();
+    }
+
+    public static void runJob(JobSpecification spec, String appName) throws Exception {
+        spec.setFrameSize(FRAME_SIZE);
+        JobId jobId = hcc.startJob(spec, EnumSet.of(JobFlag.PROFILE_RUNTIME));
+        hcc.waitForCompletion(jobId);
+    }
+
+}
diff --git a/hyracks/hyracks-hdfs/src/test/java/edu/uci/ics/hyracks/hdfs/utils/TestUtils.java b/hyracks/hyracks-hdfs/src/test/java/edu/uci/ics/hyracks/hdfs/utils/TestUtils.java
new file mode 100644
index 0000000..3826688
--- /dev/null
+++ b/hyracks/hyracks-hdfs/src/test/java/edu/uci/ics/hyracks/hdfs/utils/TestUtils.java
@@ -0,0 +1,93 @@
+/*
+ * 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.utils;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileReader;
+
+public class TestUtils {
+
+    public static void compareWithResult(File expectedFile, File actualFile) throws Exception {
+        BufferedReader readerExpected = new BufferedReader(new FileReader(expectedFile));
+        BufferedReader readerActual = new BufferedReader(new FileReader(actualFile));
+        String lineExpected, lineActual;
+        int num = 1;
+        try {
+            while ((lineExpected = readerExpected.readLine()) != null) {
+                lineActual = readerActual.readLine();
+                // Assert.assertEquals(lineExpected, lineActual);
+                if (lineActual == null) {
+                    throw new Exception("Actual result changed at line " + num + ":\n< " + lineExpected + "\n> ");
+                }
+                if (!equalStrings(lineExpected, lineActual)) {
+                    throw new Exception("Result for changed at line " + num + ":\n< " + lineExpected + "\n> "
+                            + lineActual);
+                }
+                ++num;
+            }
+            lineActual = readerActual.readLine();
+            if (lineActual != null) {
+                throw new Exception("Actual result changed at line " + num + ":\n< \n> " + lineActual);
+            }
+        } finally {
+            readerExpected.close();
+            readerActual.close();
+        }
+    }
+
+    private static boolean equalStrings(String s1, String s2) {
+        String[] rowsOne = s1.split("\n");
+        String[] rowsTwo = s2.split("\n");
+
+        if (rowsOne.length != rowsTwo.length)
+            return false;
+
+        for (int i = 0; i < rowsOne.length; i++) {
+            String row1 = rowsOne[i];
+            String row2 = rowsTwo[i];
+
+            if (row1.equals(row2))
+                continue;
+
+            String[] fields1 = row1.split(",");
+            String[] fields2 = row2.split(",");
+
+            for (int j = 0; j < fields1.length; j++) {
+                if (fields1[j].equals(fields2[j])) {
+                    continue;
+                } else if (fields1[j].indexOf('.') < 0) {
+                    return false;
+                } else {
+                    fields1[j] = fields1[j].split("=")[1];
+                    fields2[j] = fields2[j].split("=")[1];
+                    Double double1 = Double.parseDouble(fields1[j]);
+                    Double double2 = Double.parseDouble(fields2[j]);
+                    float float1 = (float) double1.doubleValue();
+                    float float2 = (float) double2.doubleValue();
+
+                    if (Math.abs(float1 - float2) == 0)
+                        continue;
+                    else {
+                        return false;
+                    }
+                }
+            }
+        }
+        return true;
+    }
+
+}
diff --git a/hyracks/hyracks-hdfs/src/test/resources/data/customer.tbl b/hyracks/hyracks-hdfs/src/test/resources/data/customer.tbl
new file mode 100644
index 0000000..5d39c80
--- /dev/null
+++ b/hyracks/hyracks-hdfs/src/test/resources/data/customer.tbl
@@ -0,0 +1,150 @@
+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|
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diff --git a/hyracks/hyracks-hdfs/src/test/resources/expected/part-0 b/hyracks/hyracks-hdfs/src/test/resources/expected/part-0
new file mode 100755
index 0000000..1e4c58b
--- /dev/null
+++ b/hyracks/hyracks-hdfs/src/test/resources/expected/part-0
@@ -0,0 +1,77 @@
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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
new file mode 100755
index 0000000..e7655d1
--- /dev/null
+++ b/hyracks/hyracks-hdfs/src/test/resources/expected/part-1
@@ -0,0 +1,73 @@
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diff --git a/hyracks/hyracks-hdfs/src/test/resources/hadoop/conf/core-site.xml b/hyracks/hyracks-hdfs/src/test/resources/hadoop/conf/core-site.xml
new file mode 100644
index 0000000..47dfac5
--- /dev/null
+++ b/hyracks/hyracks-hdfs/src/test/resources/hadoop/conf/core-site.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
+
+<!-- Put site-specific property overrides in this file. -->
+
+<configuration>
+
+<property>
+    <name>fs.default.name</name>
+    <value>hdfs://127.0.0.1:31888</value>
+</property>
+<property>
+    <name>hadoop.tmp.dir</name>
+    <value>/tmp/hadoop</value>
+</property>
+
+
+</configuration>
diff --git a/hyracks/hyracks-hdfs/src/test/resources/hadoop/conf/hdfs-site.xml b/hyracks/hyracks-hdfs/src/test/resources/hadoop/conf/hdfs-site.xml
new file mode 100644
index 0000000..8d29b1d
--- /dev/null
+++ b/hyracks/hyracks-hdfs/src/test/resources/hadoop/conf/hdfs-site.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
+
+<!-- Put site-specific property overrides in this file. -->
+
+<configuration>
+
+<property>
+   <name>dfs.replication</name>
+   <value>1</value>
+</property>
+
+<property>
+	<name>dfs.block.size</name>
+	<value>65536</value>
+</property>
+
+</configuration>
diff --git a/hyracks/hyracks-hdfs/src/test/resources/hadoop/conf/log4j.properties b/hyracks/hyracks-hdfs/src/test/resources/hadoop/conf/log4j.properties
new file mode 100755
index 0000000..d5e6004
--- /dev/null
+++ b/hyracks/hyracks-hdfs/src/test/resources/hadoop/conf/log4j.properties
@@ -0,0 +1,94 @@
+# Define some default values that can be overridden by system properties
+hadoop.root.logger=FATAL,console
+hadoop.log.dir=.
+hadoop.log.file=hadoop.log
+
+# Define the root logger to the system property "hadoop.root.logger".
+log4j.rootLogger=${hadoop.root.logger}, EventCounter
+
+# Logging Threshold
+log4j.threshhold=FATAL
+
+#
+# Daily Rolling File Appender
+#
+
+log4j.appender.DRFA=org.apache.log4j.DailyRollingFileAppender
+log4j.appender.DRFA.File=${hadoop.log.dir}/${hadoop.log.file}
+
+# Rollver at midnight
+log4j.appender.DRFA.DatePattern=.yyyy-MM-dd
+
+# 30-day backup
+#log4j.appender.DRFA.MaxBackupIndex=30
+log4j.appender.DRFA.layout=org.apache.log4j.PatternLayout
+
+# Pattern format: Date LogLevel LoggerName LogMessage
+log4j.appender.DRFA.layout.ConversionPattern=%d{ISO8601} %p %c: %m%n
+# Debugging Pattern format
+#log4j.appender.DRFA.layout.ConversionPattern=%d{ISO8601} %-5p %c{2} (%F:%M(%L)) - %m%n
+
+
+#
+# console
+# Add "console" to rootlogger above if you want to use this 
+#
+
+log4j.appender.console=org.apache.log4j.ConsoleAppender
+log4j.appender.console.target=System.err
+log4j.appender.console.layout=org.apache.log4j.PatternLayout
+log4j.appender.console.layout.ConversionPattern=%d{yy/MM/dd HH:mm:ss} %p %c{2}: %m%n
+
+#
+# TaskLog Appender
+#
+
+#Default values
+hadoop.tasklog.taskid=null
+hadoop.tasklog.noKeepSplits=4
+hadoop.tasklog.totalLogFileSize=100
+hadoop.tasklog.purgeLogSplits=true
+hadoop.tasklog.logsRetainHours=12
+
+log4j.appender.TLA=org.apache.hadoop.mapred.TaskLogAppender
+log4j.appender.TLA.taskId=${hadoop.tasklog.taskid}
+log4j.appender.TLA.totalLogFileSize=${hadoop.tasklog.totalLogFileSize}
+
+log4j.appender.TLA.layout=org.apache.log4j.PatternLayout
+log4j.appender.TLA.layout.ConversionPattern=%d{ISO8601} %p %c: %m%n
+
+#
+# Rolling File Appender
+#
+
+#log4j.appender.RFA=org.apache.log4j.RollingFileAppender
+#log4j.appender.RFA.File=${hadoop.log.dir}/${hadoop.log.file}
+
+# Logfile size and and 30-day backups
+#log4j.appender.RFA.MaxFileSize=1MB
+#log4j.appender.RFA.MaxBackupIndex=30
+
+#log4j.appender.RFA.layout=org.apache.log4j.PatternLayout
+#log4j.appender.RFA.layout.ConversionPattern=%d{ISO8601} %-5p %c{2} - %m%n
+#log4j.appender.RFA.layout.ConversionPattern=%d{ISO8601} %-5p %c{2} (%F:%M(%L)) - %m%n
+
+#
+# FSNamesystem Audit logging
+# All audit events are logged at INFO level
+#
+log4j.logger.org.apache.hadoop.fs.FSNamesystem.audit=WARN
+
+# Custom Logging levels
+
+#log4j.logger.org.apache.hadoop.mapred.JobTracker=DEBUG
+#log4j.logger.org.apache.hadoop.mapred.TaskTracker=DEBUG
+#log4j.logger.org.apache.hadoop.fs.FSNamesystem=DEBUG
+
+# Jets3t library
+log4j.logger.org.jets3t.service.impl.rest.httpclient.RestS3Service=ERROR
+
+#
+# Event Counter Appender
+# Sends counts of logging messages at different severity levels to Hadoop Metrics.
+#
+log4j.appender.EventCounter=org.apache.hadoop.metrics.jvm.EventCounter
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
new file mode 100644
index 0000000..2904fef
--- /dev/null
+++ b/hyracks/hyracks-hdfs/src/test/resources/hadoop/conf/mapred-site.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0"?>
+<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
+
+<!-- Put site-specific property overrides in this file. -->
+
+<configuration>
+
+  <property>
+    <name>mapred.job.tracker</name>
+    <value>localhost:29007</value>
+  </property>
+  <property>
+     <name>mapred.tasktracker.map.tasks.maximum</name>
+     <value>20</value>
+  </property>
+   <property>
+      <name>mapred.tasktracker.reduce.tasks.maximum</name>
+      <value>20</value>
+   </property>
+   <property>
+      <name>mapred.min.split.size</name>
+      <value>8192</value>
+   </property>
+
+</configuration>
diff --git a/hyracks/pom.xml b/hyracks/pom.xml
index 1867bbc..6c3859c 100644
--- a/hyracks/pom.xml
+++ b/hyracks/pom.xml
@@ -92,6 +92,7 @@
     <module>hyracks-hadoop-compat</module>
     <!--module>hyracks-yarn</module-->
     <module>hyracks-maven-plugins</module>
+    <module>hyracks-hdfs</module>
     <module>hyracks-dist</module>
   </modules>
-</project>
\ No newline at end of file
+</project>