diff --git a/fullstack/hyracks/hyracks-hdfs/hyracks-hdfs-0.23.1/pom.xml b/fullstack/hyracks/hyracks-hdfs/hyracks-hdfs-0.23.1/pom.xml
new file mode 100644
index 0000000..8b7ecf0
--- /dev/null
+++ b/fullstack/hyracks/hyracks-hdfs/hyracks-hdfs-0.23.1/pom.xml
@@ -0,0 +1,219 @@
+<?xml version="1.0"?>
+<project
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
+	xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+	<modelVersion>4.0.0</modelVersion>
+	<artifactId>hyracks-hdfs-0.23.1</artifactId>
+	<name>hyracks-hdfs-0.23.1</name>
+	<parent>
+		<artifactId>hyracks-hdfs</artifactId>
+		<groupId>edu.uci.ics.hyracks</groupId>
+		<version>0.2.3-SNAPSHOT</version>
+	</parent>
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-compiler-plugin</artifactId>
+				<version>2.0.2</version>
+				<configuration>
+					<source>1.7</source>
+					<target>1.7</target>
+					<fork>true</fork>
+				</configuration>
+			</plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-surefire-plugin</artifactId>
+				<version>2.7.2</version>
+				<configuration>
+					<forkMode>pertest</forkMode>
+					<includes>
+						<include>**/*TestSuite.java</include>
+						<include>**/*Test.java</include>
+					</includes>
+				</configuration>
+			</plugin>
+		</plugins>
+	</build>
+
+	<profiles>
+		<profile>
+			<activation>
+				<activeByDefault>true</activeByDefault>
+				<property>
+					<name>hadoop</name>
+					<value>0.23.1</value>
+				</property>
+			</activation>
+			<id>hadoop-0.23.1</id>
+			<dependencies>
+				<dependency>
+					<groupId>org.apache.hadoop</groupId>
+					<artifactId>hadoop-common</artifactId>
+					<version>0.23.1</version>
+					<type>jar</type>
+					<scope>compile</scope>
+				</dependency>
+				<dependency>
+					<groupId>org.apache.hadoop</groupId>
+					<artifactId>hadoop-mapreduce-client-core</artifactId>
+					<version>0.23.1</version>
+					<type>jar</type>
+					<scope>compile</scope>
+				</dependency>
+				<dependency>
+					<groupId>org.apache.hadoop</groupId>
+					<artifactId>hadoop-hdfs</artifactId>
+					<version>0.23.1</version>
+					<type>jar</type>
+					<scope>compile</scope>
+				</dependency>
+				<dependency>
+					<groupId>org.apache.hadoop</groupId>
+					<artifactId>hadoop-minicluster</artifactId>
+					<version>0.23.1</version>
+					<type>jar</type>
+					<scope>compile</scope>
+				</dependency>
+			</dependencies>
+		</profile>
+		<profile>
+			<id>hadoop-0.23.6</id>
+			<activation>
+				<activeByDefault>false</activeByDefault>
+				<property>
+					<name>hadoop</name>
+					<value>0.23.6</value>
+				</property>
+			</activation>
+			<dependencies>
+				<dependency>
+					<groupId>org.apache.hadoop</groupId>
+					<artifactId>hadoop-common</artifactId>
+					<version>0.23.6</version>
+					<type>jar</type>
+					<scope>compile</scope>
+				</dependency>
+				<dependency>
+					<groupId>org.apache.hadoop</groupId>
+					<artifactId>hadoop-mapreduce-client-core</artifactId>
+					<version>0.23.6</version>
+					<type>jar</type>
+					<scope>compile</scope>
+				</dependency>
+				<dependency>
+					<groupId>org.apache.hadoop</groupId>
+					<artifactId>hadoop-hdfs</artifactId>
+					<version>0.23.6</version>
+					<type>jar</type>
+					<scope>compile</scope>
+				</dependency>
+				<dependency>
+					<groupId>org.apache.hadoop</groupId>
+					<artifactId>hadoop-minicluster</artifactId>
+					<version>0.23.6</version>
+					<type>jar</type>
+					<scope>compile</scope>
+				</dependency>
+			</dependencies>
+		</profile>
+		<profile>
+			<activation>
+				<activeByDefault>false</activeByDefault>
+				<property>
+					<name>hadoop</name>
+					<value>cdh-4.2</value>
+				</property>
+			</activation>
+			<id>cdh-4.2</id>
+			<dependencies>
+				<dependency>
+					<groupId>org.apache.hadoop</groupId>
+					<artifactId>hadoop-common</artifactId>
+					<version>2.0.0-cdh4.2.0</version>
+					<type>jar</type>
+					<scope>compile</scope>
+				</dependency>
+				<dependency>
+					<groupId>org.apache.hadoop</groupId>
+					<artifactId>hadoop-mapreduce-client-core</artifactId>
+					<version>2.0.0-cdh4.2.0</version>
+					<type>jar</type>
+					<scope>compile</scope>
+				</dependency>
+				<dependency>
+					<groupId>org.apache.hadoop</groupId>
+					<artifactId>hadoop-hdfs</artifactId>
+					<version>2.0.0-cdh4.2.0</version>
+					<type>jar</type>
+					<scope>compile</scope>
+				</dependency>
+				<dependency>
+					<groupId>org.apache.hadoop</groupId>
+					<artifactId>hadoop-minicluster</artifactId>
+					<version>2.0.0-cdh4.2.0</version>
+					<type>jar</type>
+					<scope>compile</scope>
+				</dependency>
+			</dependencies>
+		</profile>
+		<profile>
+			<activation>
+				<activeByDefault>false</activeByDefault>
+				<property>
+					<name>hadoop</name>
+					<value>cdh-4.1</value>
+				</property>
+			</activation>
+			<id>cdh-4.1</id>
+			<dependencies>
+				<dependency>
+					<groupId>org.apache.hadoop</groupId>
+					<artifactId>hadoop-common</artifactId>
+					<version>2.0.0-cdh4.1.0</version>
+					<type>jar</type>
+					<scope>compile</scope>
+				</dependency>
+				<dependency>
+					<groupId>org.apache.hadoop</groupId>
+					<artifactId>hadoop-mapreduce-client-core</artifactId>
+					<version>2.0.0-cdh4.1.0</version>
+					<type>jar</type>
+					<scope>compile</scope>
+				</dependency>
+				<dependency>
+					<groupId>org.apache.hadoop</groupId>
+					<artifactId>hadoop-hdfs</artifactId>
+					<version>2.0.0-cdh4.1.0</version>
+					<type>jar</type>
+					<scope>compile</scope>
+				</dependency>
+				<dependency>
+					<groupId>org.apache.hadoop</groupId>
+					<artifactId>hadoop-minicluster</artifactId>
+					<version>2.0.0-cdh4.1.0</version>
+					<type>jar</type>
+					<scope>compile</scope>
+				</dependency>
+			</dependencies>
+		</profile>
+	</profiles>
+
+	<dependencies>
+		<dependency>
+			<groupId>edu.uci.ics.hyracks</groupId>
+			<artifactId>hyracks-api</artifactId>
+			<version>0.2.3-SNAPSHOT</version>
+			<type>jar</type>
+			<scope>compile</scope>
+		</dependency>
+	</dependencies>
+
+	<repositories>
+		<repository>
+			<id>cloudera</id>
+			<url>https://repository.cloudera.com/artifactory/cloudera-repos/</url>
+		</repository>
+	</repositories>
+</project>
diff --git a/fullstack/hyracks/hyracks-hdfs/hyracks-hdfs-0.23.1/src/main/java/edu/uci/ics/hyracks/hdfs/ContextFactory.java b/fullstack/hyracks/hyracks-hdfs/hyracks-hdfs-0.23.1/src/main/java/edu/uci/ics/hyracks/hdfs/ContextFactory.java
new file mode 100644
index 0000000..ddcce64
--- /dev/null
+++ b/fullstack/hyracks/hyracks-hdfs/hyracks-hdfs-0.23.1/src/main/java/edu/uci/ics/hyracks/hdfs/ContextFactory.java
@@ -0,0 +1,40 @@
+package edu.uci.ics.hyracks.hdfs;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.mapreduce.JobContext;
+import org.apache.hadoop.mapreduce.JobID;
+import org.apache.hadoop.mapreduce.TaskAttemptContext;
+import org.apache.hadoop.mapreduce.TaskAttemptID;
+import org.apache.hadoop.mapreduce.TaskType;
+import org.apache.hadoop.mapreduce.task.JobContextImpl;
+import org.apache.hadoop.mapreduce.task.TaskAttemptContextImpl;
+
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+
+/**
+ * The wrapper to generate TaskTattemptContext
+ */
+public class ContextFactory {
+
+    public TaskAttemptContext createContext(Configuration conf, TaskAttemptID tid) throws HyracksDataException {
+        try {
+            return new TaskAttemptContextImpl(conf, tid);
+        } catch (Exception e) {
+            throw new HyracksDataException(e);
+        }
+    }
+
+    public TaskAttemptContext createContext(Configuration conf, int partition) throws HyracksDataException {
+        try {
+            TaskAttemptID tid = new TaskAttemptID("", 0, TaskType.REDUCE, partition, 0);
+            return new TaskAttemptContextImpl(conf, tid);
+        } catch (Exception e) {
+            throw new HyracksDataException(e);
+        }
+    }
+
+    public JobContext createJobContext(Configuration conf) {
+        return new JobContextImpl(conf, new JobID("0", 0));
+    }
+
+}
diff --git a/fullstack/hyracks/hyracks-hdfs/hyracks-hdfs-0.23.1/src/main/java/edu/uci/ics/hyracks/hdfs/MiniDFSClusterFactory.java b/fullstack/hyracks/hyracks-hdfs/hyracks-hdfs-0.23.1/src/main/java/edu/uci/ics/hyracks/hdfs/MiniDFSClusterFactory.java
new file mode 100644
index 0000000..ded75f1
--- /dev/null
+++ b/fullstack/hyracks/hyracks-hdfs/hyracks-hdfs-0.23.1/src/main/java/edu/uci/ics/hyracks/hdfs/MiniDFSClusterFactory.java
@@ -0,0 +1,20 @@
+package edu.uci.ics.hyracks.hdfs;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.hdfs.MiniDFSCluster;
+
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+
+public class MiniDFSClusterFactory {
+
+    public MiniDFSCluster getMiniDFSCluster(Configuration conf, int numberOfNC) throws HyracksDataException {
+        try {
+            MiniDFSCluster.Builder builder = new MiniDFSCluster.Builder(conf);
+            builder.numDataNodes(numberOfNC);
+            MiniDFSCluster dfsCluster = builder.build();
+            return dfsCluster;
+        } catch (Exception e) {
+            throw new HyracksDataException(e);
+        }
+    }
+}