diff --git a/asterix-dist/pom.xml b/asterix-dist/pom.xml
deleted file mode 100644
index 654a11e..0000000
--- a/asterix-dist/pom.xml
+++ /dev/null
@@ -1,55 +0,0 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<artifactId>asterix-dist</artifactId>
-	<parent>
-		<groupId>edu.uci.ics.asterix</groupId>
-		<artifactId>asterix</artifactId>
-		<version>0.0.4-SNAPSHOT</version>
-	</parent>
-
-	<build>
-		<plugins>
-			<plugin>
-				<artifactId>maven-assembly-plugin</artifactId>
-				<version>2.2-beta-5</version>
-				<executions>
-					<execution>
-						<configuration>
-							<descriptors>
-								<descriptor>src/main/assembly/binary-assembly.xml</descriptor>
-							</descriptors>
-						</configuration>
-						<phase>package</phase>
-						<goals>
-							<goal>attached</goal>
-						</goals>
-					</execution>
-				</executions>
-			</plugin>
-		</plugins>
-	</build>
-	<dependencies>
-		<dependency>
-			<groupId>edu.uci.ics.hyracks</groupId>
-			<artifactId>hyracks-server</artifactId>
-			<version>0.2.3-SNAPSHOT</version>
-			<type>zip</type>
-			<classifier>binary-assembly</classifier>
-		</dependency>
-		<dependency>
-			<groupId>edu.uci.ics.hyracks</groupId>
-			<artifactId>hyracks-cli</artifactId>
-			<version>0.2.3-SNAPSHOT</version>
-			<type>zip</type>
-			<classifier>binary-assembly</classifier>
-		</dependency>
-		<dependency>
-			<groupId>edu.uci.ics.asterix</groupId>
-			<artifactId>asterix-app</artifactId>
-			<version>0.0.4-SNAPSHOT</version>
-			<type>zip</type>
-			<classifier>binary-assembly</classifier>
-		</dependency>
-	</dependencies>
-</project>
diff --git a/asterix-dist/src/main/assembly/binary-assembly.xml b/asterix-dist/src/main/assembly/binary-assembly.xml
deleted file mode 100644
index ecf6d32..0000000
--- a/asterix-dist/src/main/assembly/binary-assembly.xml
+++ /dev/null
@@ -1,48 +0,0 @@
-<assembly>
-  <id>binary-assembly</id>
-  <formats>
-    <format>zip</format>
-    <format>dir</format>
-  </formats>
-  <includeBaseDirectory>false</includeBaseDirectory>
-  <fileSets>
-    <fileSet>
-      <directory>src/main/scripts</directory>
-      <outputDirectory>.</outputDirectory>
-    </fileSet>
-  </fileSets>
-  <dependencySets>
-    <dependencySet>
-      <outputDirectory>hyracks-server</outputDirectory>
-      <includes>
-        <include>hyracks-server*</include>
-      </includes>
-      <unpack>true</unpack>
-      <useTransitiveDependencies>false</useTransitiveDependencies>
-    </dependencySet>
-    <dependencySet>
-      <outputDirectory>hyracks-cli</outputDirectory>
-      <includes>
-        <include>hyracks-cli*</include>
-      </includes>
-      <unpack>true</unpack>
-      <useTransitiveDependencies>false</useTransitiveDependencies>
-    </dependencySet>
-    <dependencySet>
-      <outputDirectory>asterix</outputDirectory>
-      <outputFileNameMapping>${artifact.artifactId}.${artifact.extension}</outputFileNameMapping>
-      <includes>
-        <include>asterix-app*</include>
-      </includes>
-      <useTransitiveDependencies>false</useTransitiveDependencies>
-    </dependencySet>
-    <!--dependencySet>
-      <outputDirectory>archives</outputDirectory>
-      <outputFileNameMapping>${artifact.artifactId}.${artifact.extension}</outputFileNameMapping>
-      <excludes>
-        <exclude>asterix-dist*</exclude>
-      </excludes>
-      <useTransitiveDependencies>false</useTransitiveDependencies>
-    </dependencySet-->
-  </dependencySets>
-</assembly>
diff --git a/asterix-dist/src/main/scripts/startasterix.sh b/asterix-dist/src/main/scripts/startasterix.sh
deleted file mode 100644
index b84834f..0000000
--- a/asterix-dist/src/main/scripts/startasterix.sh
+++ /dev/null
@@ -1,79 +0,0 @@
-#!/bin/bash
-
-# Logging output for the CC and NCs is directed to their appropriately named
-# files in LOG_HOME
-#
-# Example usage: ./runasterix.sh 4
-# Loads 1 CC, 4 NCs (nc0, nc1, nc2, and nc3)
-#
-
-BASEDIR=`pwd`/$(dirname $0)
-echo "Base dir: " ${BASEDIR}
-
-ASTERIX_BIN=${BASEDIR}/asterix/asterix-app.zip
-HYRACKS_SERVER_BIN=${BASEDIR}/hyracks-server/bin
-HYRACKS_CLI_BIN=${BASEDIR}/hyracks-cli/bin
-
-CONFIG_DIR=${BASEDIR}/config
-LOG_DIR=${BASEDIR}/log
-
-mkdir ${LOG_DIR} ${CONFIG_DIR}
-
-CONFIG_NAME=local-autogen.properties	        # name of config file to generate
-
-# check existence of directories
-dirs=($HYRACKS_SERVER_BIN $HYRACKS_CLI_BIN $LOG_DIR $CONFIG_DIR)
-for i in  "${dirs[@]}"
-do
-    if [ ! -d "$i" ]
-    then
-	    printf "Error: invalid directory layout -- can't access $i\n" >&2
-	    exit 2
-    fi
-done
-
-# set number of node controllers to load
-if [ "$1" == "" ]
-then
-	numnc=1
-else
-	if echo $1 | egrep -q '^[0-9]+$'; then
-		numnc=$1
-	else
-		printf "Error: $1 is not a number.\n" >&2
-		printf "usage: %s [number_of_ncs]\n" $(basename $0) >&2
-		exit 2
-	fi
-fi
-
-# generate a suitable config file
-echo "generating config file..."
-printf "MetadataNode=nc1\nNewUniverse=true\n" > $CONFIG_DIR/$CONFIG_NAME
-for ((i=1;i<=$numnc;i++)); do
-    echo "nc$i.stores=/tmp/nc$i/" >> $CONFIG_DIR/$CONFIG_NAME
-done
-echo "OutputDir=/tmp/asterix_output/" >> $CONFIG_DIR/$CONFIG_NAME
-
-# point to the config file and give java some extra memory
-export CLASSPATH_PREFIX=$CONFIG_DIR
-export JAVA_OPTS="-DAsterixConfigFileName=$CONFIG_NAME -Xms256m -Xmx512m"
-
-echo "cluster controller starting..."
-sh $HYRACKS_SERVER_BIN/hyrackscc -cc-root localhost -client-net-ip-address 127.0.0.1 -cluster-net-ip-address 127.0.0.1 &> $LOG_DIR/cc.log &
-
-# for some reason this helps against getting a socket error
-sleep 3
-
-# start the node controllers
-for ((i=1;i<=$numnc;i++)); do
-	echo "node controller (nc$i) starting..."
-	sh $HYRACKS_SERVER_BIN/hyracksnc -cc-host localhost -cluster-net-ip-address 127.0.0.1 -data-ip-address 127.0.0.1 -node-id "nc$i" \
-		&> $LOG_DIR/nc$i.log &
-
-    # avoid socket error
-	sleep .5
-done
-
-# deploy the asterix application to hyracks
-echo "connect to \"localhost\";create application asterix \"$ASTERIX_BIN\";" > $CONFIG_DIR/deploy.hcli
-cat $CONFIG_DIR/deploy.hcli | sh $HYRACKS_CLI_BIN/hyrackscli
diff --git a/asterix-dist/src/main/scripts/stopasterix.sh b/asterix-dist/src/main/scripts/stopasterix.sh
deleted file mode 100644
index 7b32b85..0000000
--- a/asterix-dist/src/main/scripts/stopasterix.sh
+++ /dev/null
@@ -1,21 +0,0 @@
-#!/bin/bash
-
-# get the PIDs of java processes we started
-if [ "$JAVA_HOME" != "" ]
-then
-    PIDS=`$JAVA_HOME/bin/jps`
-else
-    PIDS=`jps`
-fi
-
-while IFS='\n' read -ra MYPIDS; do
-    for i in "${MYPIDS[@]}"; do
-        pid=`echo $i | grep 'CCDriver\|NCDriver\|VirtualClusterDriver' | awk '{print $1}'`
-        name=`echo $i | grep 'CCDriver\|NCDriver\|VirtualClusterDriver' | awk '{print $2}'`
-        if [ "$pid" != "" ]
-        then
-            echo "Stopping $name: $pid"
-            kill -9 $pid
-        fi
-    done
-done <<< "$PIDS"
diff --git a/asterix-events/pom.xml b/asterix-events/pom.xml
new file mode 100644
index 0000000..46bb96a
--- /dev/null
+++ b/asterix-events/pom.xml
@@ -0,0 +1,171 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+          <artifactId>asterix</artifactId>
+          <groupId>edu.uci.ics.asterix</groupId>
+          <version>0.0.4-SNAPSHOT</version>
+  </parent>
+  <groupId>edu.uci.ics.asterix</groupId>
+  <artifactId>asterix-events</artifactId>
+  <version>0.0.4-SNAPSHOT</version>
+
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+  </properties>
+
+  <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.jvnet.jaxb2.maven2</groupId>
+          <artifactId>maven-jaxb2-plugin</artifactId>
+          <executions>
+            <execution>
+              <id>event</id>
+              <goals>
+                <goal>generate</goal>
+              </goals>
+              <configuration>
+                <args>
+                  <arg>-Xsetters</arg>
+                  <arg>-Xvalue-constructor</arg>
+                </args>
+                <plugins>
+                  <plugin>
+                    <groupId>org.jvnet.jaxb2_commons</groupId>
+                    <artifactId>jaxb2-basics</artifactId>
+                    <version>0.6.2</version>
+                  </plugin>
+                  <plugin>
+                    <groupId>org.jvnet.jaxb2_commons</groupId>
+                    <artifactId>jaxb2-value-constructor</artifactId>
+                    <version>3.0</version>
+                  </plugin>
+                </plugins>
+                <schemaDirectory>src/main/resources/schema</schemaDirectory>
+                <schemaIncludes>
+	          <include>event.xsd</include>
+	        </schemaIncludes>
+                <generatePackage>edu.uci.ics.asterix.event.schema.event</generatePackage>
+                <generateDirectory>${project.build.directory}/generated-sources/event</generateDirectory>
+              </configuration>
+            </execution>
+            <execution>
+              <id>pattern</id>
+              <goals>
+                <goal>generate</goal>
+              </goals>
+              <configuration>
+                <args>
+                  <arg>-Xsetters</arg>
+                  <arg>-Xvalue-constructor</arg>
+                </args>
+                <plugins>
+                  <plugin>
+                    <groupId>org.jvnet.jaxb2_commons</groupId>
+                    <artifactId>jaxb2-basics</artifactId>
+                    <version>0.6.2</version>
+                  </plugin>
+                  <plugin>
+                    <groupId>org.jvnet.jaxb2_commons</groupId>
+                    <artifactId>jaxb2-value-constructor</artifactId>
+                    <version>3.0</version>
+                  </plugin>
+                </plugins>
+                <schemaDirectory>src/main/resources/schema</schemaDirectory>
+                <schemaIncludes>
+	          <include>pattern.xsd</include>
+	        </schemaIncludes>
+                <generatePackage>edu.uci.ics.asterix.event.schema.pattern</generatePackage>
+                <generateDirectory>${project.build.directory}/generated-sources/pattern</generateDirectory>
+              </configuration>
+            </execution>
+            <execution>
+              <id>cluster</id>
+              <goals>
+                <goal>generate</goal>
+              </goals>
+              <configuration>
+                <args>
+                  <arg>-Xsetters</arg>
+                  <arg>-Xvalue-constructor</arg>
+                </args>
+                <plugins>
+                  <plugin>
+                    <groupId>org.jvnet.jaxb2_commons</groupId>
+                    <artifactId>jaxb2-basics</artifactId>
+                    <version>0.6.2</version>
+                  </plugin>
+                  <plugin>
+                    <groupId>org.jvnet.jaxb2_commons</groupId>
+                    <artifactId>jaxb2-value-constructor</artifactId>
+                    <version>3.0</version>
+                  </plugin>
+                </plugins>
+                <schemaDirectory>src/main/resources/schema</schemaDirectory>
+                <schemaIncludes>
+	          <include>cluster.xsd</include>
+	        </schemaIncludes>
+                <generatePackage>edu.uci.ics.asterix.event.schema.cluster</generatePackage>
+                <generateDirectory>${project.build.directory}/generated-sources/cluster</generateDirectory>
+                <bindingDirectory>src/main/resources/schema</bindingDirectory>
+                <bindingIncludes>
+                  <bindingInclude>jaxb-bindings.xjb</bindingInclude>
+                </bindingIncludes>
+              </configuration>
+            </execution>
+          </executions>
+       </plugin>
+       <plugin>
+         <artifactId>maven-assembly-plugin</artifactId>
+         <version>2.2-beta-2</version>
+         <executions>
+           <execution>
+             <configuration>
+               <descriptor>src/main/assembly/binary-assembly.xml</descriptor>
+             </configuration>
+             <phase>package</phase>
+             <goals>
+               <goal>attached</goal>
+             </goals>
+           </execution>
+         </executions>
+       </plugin>
+    </plugins>
+  </build>
+
+  <dependencies>
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>4.8.1</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>args4j</groupId>
+      <artifactId>args4j</artifactId>
+      <version>2.0.12</version>
+      <type>jar</type>
+      <scope>compile</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.jvnet.jaxb2_commons</groupId>
+      <artifactId>jaxb2-value-constructor</artifactId>
+      <version>3.0</version>
+    </dependency>
+    <dependency>
+      <groupId>commons-io</groupId>
+      <artifactId>commons-io</artifactId>
+      <version>1.4</version>
+    </dependency>
+  </dependencies>
+</project>
diff --git a/asterix-events/src/main/assembly/binary-assembly.xml b/asterix-events/src/main/assembly/binary-assembly.xml
new file mode 100644
index 0000000..29ebbdd
--- /dev/null
+++ b/asterix-events/src/main/assembly/binary-assembly.xml
@@ -0,0 +1,27 @@
+<assembly>
+  <id>bin</id>
+  <formats>
+    <format>tar.gz</format>
+    <format>tar.bz2</format>
+    <format>zip</format>
+  </formats>
+  <fileSets>
+    <fileSet>
+      <directory>src/main/resources/events</directory>
+      <outputDirectory>events</outputDirectory>
+      <includes></includes>
+    </fileSet>
+    <fileSet>
+      <directory>src/main/resources/scripts</directory>
+      <outputDirectory>scripts</outputDirectory>
+      <includes></includes>
+    </fileSet>
+    <fileSet>
+      <directory>target</directory>
+      <outputDirectory>target</outputDirectory>
+      <includes>
+        <include>*.jar</include>
+      </includes>
+    </fileSet>
+  </fileSets>
+</assembly>
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/api/ClusterInfo.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/api/ClusterInfo.java
new file mode 100644
index 0000000..630f9b3
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/api/ClusterInfo.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.asterix.event.api;
+
+import java.util.List;
+
+public class ClusterInfo {
+
+	List<NodeInfo> nodes;
+
+	public ClusterInfo(List<NodeInfo> nodes) {
+		this.nodes = nodes;
+	}
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/api/NodeInfo.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/api/NodeInfo.java
new file mode 100644
index 0000000..835e0dc
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/api/NodeInfo.java
@@ -0,0 +1,34 @@
+/*
+ * 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.asterix.event.api;
+
+public class NodeInfo {
+
+	private final String id;
+	private final String ip;
+
+	public NodeInfo(String id, String ip) {
+		this.id = id;
+		this.ip = ip;
+	}
+
+	public String getId() {
+		return id;
+	}
+
+	public String getIp() {
+		return ip;
+	}
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/driver/EventConfig.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/driver/EventConfig.java
new file mode 100644
index 0000000..9d0138b
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/driver/EventConfig.java
@@ -0,0 +1,36 @@
+/*
+ * 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.asterix.event.driver;
+
+import org.kohsuke.args4j.Option;
+
+public class EventConfig {
+
+	@Option(name = "-h", required = false, usage = "Help")
+	public boolean help = false;
+
+	@Option(name = "-d", required = false, usage = "Show the execution on a timeline")
+	public boolean dryRun = false;
+
+	@Option(name = "-s", required = false, usage = "Seed for randomization")
+	public int seed = -1;
+
+	@Option(name = "-c", required = true, usage = "Path to cluster configuration (REQUIRED)")
+	public String clusterPath;
+
+	@Option(name = "-p", required = true, usage = "Path to pattern configuration (REQUIRED)")
+	public String patternPath;
+
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/driver/EventDriver.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/driver/EventDriver.java
new file mode 100644
index 0000000..17d6647
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/driver/EventDriver.java
@@ -0,0 +1,173 @@
+/*
+ * 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.asterix.event.driver;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.JAXBException;
+import javax.xml.bind.Unmarshaller;
+
+import org.kohsuke.args4j.CmdLineParser;
+
+import edu.uci.ics.asterix.event.management.DefaultOutputHandler;
+import edu.uci.ics.asterix.event.management.EventUtil;
+import edu.uci.ics.asterix.event.management.EventrixClient;
+import edu.uci.ics.asterix.event.management.IOutputHandler;
+import edu.uci.ics.asterix.event.management.Randomizer;
+import edu.uci.ics.asterix.event.schema.cluster.Cluster;
+import edu.uci.ics.asterix.event.schema.cluster.Node;
+import edu.uci.ics.asterix.event.schema.cluster.Property;
+import edu.uci.ics.asterix.event.schema.event.Events;
+import edu.uci.ics.asterix.event.schema.pattern.Patterns;
+
+public class EventDriver {
+
+	public static final String CLIENT_NODE_ID = "client_node";
+	public static final Node CLIENT_NODE = new Node(CLIENT_NODE_ID,
+			"127.0.0.1", null, null, null, null);
+
+	private static String eventsDir;
+	private static Events events;
+	private static Map<String, String> env = new HashMap<String, String>();
+	private static String scriptDirSuffix;
+
+	public static String getEventsDir() {
+		return eventsDir;
+	}
+
+	public static Events getEvents() {
+		return events;
+	}
+
+	public static Map<String, String> getEnvironment() {
+		return env;
+	}
+
+	public static String getStringifiedEnv(Cluster cluster) {
+		StringBuffer buffer = new StringBuffer();
+		for (Property p : cluster.getEnv().getProperty()) {
+			buffer.append(p.getKey() + "=" + p.getValue() + " ");
+		}
+		return buffer.toString();
+	}
+
+	public static Cluster initializeCluster(String path) throws JAXBException,
+			IOException {
+		File file = new File(path);
+		JAXBContext ctx = JAXBContext.newInstance(Cluster.class);
+		Unmarshaller unmarshaller = ctx.createUnmarshaller();
+		Cluster cluster = (Cluster) unmarshaller.unmarshal(file);
+		for (Property p : cluster.getEnv().getProperty()) {
+			env.put(p.getKey(), p.getValue());
+		}
+		return cluster;
+	}
+
+	public static Patterns initializePatterns(String path)
+			throws JAXBException, IOException {
+		File file = new File(path);
+		JAXBContext ctx = JAXBContext.newInstance(Patterns.class);
+		Unmarshaller unmarshaller = ctx.createUnmarshaller();
+		return (Patterns) unmarshaller.unmarshal(file);
+	}
+
+	private static void initialize(EventConfig eventConfig) throws IOException,
+			JAXBException {
+
+	}
+
+	public static EventrixClient getClient(String eventsDir, Cluster cluster,
+			boolean dryRun) throws Exception {
+		return new EventrixClient(eventsDir, cluster, dryRun,
+				new DefaultOutputHandler());
+	}
+
+	public static EventrixClient getClient(String eventsDir, Cluster cluster,
+			boolean dryRun, IOutputHandler outputHandler) throws Exception {
+		return new EventrixClient(eventsDir, cluster, dryRun, outputHandler);
+	}
+
+	public static void main(String[] args) throws Exception {
+		String eventsHome = System.getenv("EVENT_HOME");
+		if (eventsHome == null) {
+			throw new IllegalStateException("EVENT_HOME is not set");
+		}
+		eventsDir = eventsHome + File.separator + EventUtil.EVENTS_DIR;
+		EventConfig eventConfig = new EventConfig();
+		CmdLineParser parser = new CmdLineParser(eventConfig);
+		try {
+			parser.parseArgument(args);
+			if (eventConfig.help) {
+				parser.printUsage(System.out);
+			}
+			if (eventConfig.seed > 0) {
+				Randomizer.getInstance(eventConfig.seed);
+			}
+			Cluster cluster = initializeCluster(eventConfig.clusterPath);
+			Patterns patterns = initializePatterns(eventConfig.patternPath);
+			initialize(eventConfig);
+
+			if (!eventConfig.dryRun) {
+				prepare(cluster);
+			}
+			EventrixClient client = new EventrixClient(eventsDir, cluster,
+					eventConfig.dryRun, new DefaultOutputHandler());
+			client.submit(patterns);
+			if (!eventConfig.dryRun) {
+				cleanup(cluster);
+			}
+		} catch (Exception e) {
+			e.printStackTrace();
+			parser.printUsage(System.err);
+		}
+	}
+
+	private static void prepare(Cluster cluster) throws IOException,
+			InterruptedException {
+
+		scriptDirSuffix = "" + System.nanoTime();
+		List<String> args = new ArrayList<String>();
+		args.add(scriptDirSuffix);
+		Node clientNode = new Node();
+		clientNode.setId("client");
+		clientNode.setIp("127.0.0.1");
+		for (Node node : cluster.getNode()) {
+			args.add(node.getIp());
+		}
+		EventUtil.executeLocalScript(clientNode, eventsDir + "/" + "events"
+				+ "/" + "prepare.sh", args);
+	}
+
+	private static void cleanup(Cluster cluster) throws IOException,
+			InterruptedException {
+		List<String> args = new ArrayList<String>();
+		args.add(scriptDirSuffix);
+		Node clientNode = new Node();
+		clientNode.setId("client");
+		clientNode.setIp("127.0.0.1");
+		for (Node node : cluster.getNode()) {
+			args.add(node.getIp());
+		}
+		EventUtil.executeLocalScript(clientNode, eventsDir + "/" + "events"
+				+ "/" + "cleanup.sh", args);
+	}
+
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/DefaultOutputHandler.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/DefaultOutputHandler.java
new file mode 100644
index 0000000..e8f06a0
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/DefaultOutputHandler.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.asterix.event.management;
+
+import edu.uci.ics.asterix.event.schema.pattern.Event;
+
+public class DefaultOutputHandler implements IOutputHandler {
+
+    @Override
+    public OutputAnalysis reportEventOutput(Event event, String output) {
+        return new OutputAnalysis(true, null);
+    }
+
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/ErrorHandler.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/ErrorHandler.java
new file mode 100644
index 0000000..a6c038b
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/ErrorHandler.java
@@ -0,0 +1,19 @@
+/*
+ * 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.asterix.event.management;
+
+public class ErrorHandler {
+
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventExecutor.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventExecutor.java
new file mode 100644
index 0000000..1dd257e
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventExecutor.java
@@ -0,0 +1,98 @@
+/*
+ * 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.asterix.event.management;
+
+import java.io.BufferedInputStream;
+import java.io.File;
+import java.io.IOException;
+import java.io.StringWriter;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.commons.io.IOUtils;
+
+import edu.uci.ics.asterix.event.driver.EventDriver;
+import edu.uci.ics.asterix.event.schema.cluster.Cluster;
+import edu.uci.ics.asterix.event.schema.cluster.Node;
+import edu.uci.ics.asterix.event.schema.cluster.Property;
+import edu.uci.ics.asterix.event.schema.pattern.Pattern;
+
+public class EventExecutor {
+
+	public static final String EVENTS_DIR = "events";
+	private static final String EXECUTE_SCRIPT = "execute.sh";
+	private static final String IP_LOCATION = "IP_LOCATION";
+	private static final String CLUSTER_ENV = "ENV";
+	private static final String SCRIPT = "SCRIPT";
+	private static final String ARGS = "ARGS";
+	private static final String DAEMON = "DAEMON";
+
+	public void executeEvent(Node node, String script, List<String> args,
+			boolean isDaemon, Cluster cluster, Pattern pattern,
+			IOutputHandler outputHandler, EventrixClient client)
+			throws IOException {
+		List<String> pargs = new ArrayList<String>();
+		pargs.add("/bin/bash");
+		pargs.add(client.getEventsDir() + File.separator + "scripts"
+				+ File.separator + EXECUTE_SCRIPT);
+		StringBuffer envBuffer = new StringBuffer(IP_LOCATION + "="
+				+ node.getIp() + " ");
+		if (!node.getId().equals(EventDriver.CLIENT_NODE_ID)) {
+			for (Property p : cluster.getEnv().getProperty()) {
+				if (p.getKey().equals("JAVA_HOME")) {
+					String val = node.getJavaHome() == null ? p.getValue()
+							: node.getJavaHome();
+					envBuffer.append(p.getKey() + "=" + val + " ");
+				} else if (p.getKey().equals("JAVA_OPTS")) {
+					String val = "-Xmx" + (node.getRam() == null ? cluster.getRam()
+							: node.getRam());
+					envBuffer.append(p.getKey() + "=" + val + " ");
+				} else {
+					envBuffer.append(p.getKey() + "=" + p.getValue() + " ");
+				}
+
+			}
+			pargs.add(cluster.getUsername() == null ? System
+					.getProperty("user.name") : cluster.getUsername());
+		}
+		StringBuffer argBuffer = new StringBuffer();
+		if (args != null && args.size() > 0) {
+			for (String arg : args) {
+				argBuffer.append(arg + " ");
+			}
+		}
+
+		ProcessBuilder pb = new ProcessBuilder(pargs);
+		pb.environment().put(IP_LOCATION, node.getIp());
+		pb.environment().put(CLUSTER_ENV, envBuffer.toString());
+		pb.environment().put(SCRIPT, script);
+		pb.environment().put(ARGS, argBuffer.toString());
+		pb.environment().put(DAEMON, isDaemon ? "true" : "false");
+
+		Process p = pb.start();
+		if (!isDaemon) {
+			BufferedInputStream bis = new BufferedInputStream(
+					p.getInputStream());
+			StringWriter writer = new StringWriter();
+			IOUtils.copy(bis, writer, "UTF-8");
+			String result = writer.getBuffer().toString();
+			OutputAnalysis analysis = outputHandler.reportEventOutput(
+					pattern.getEvent(), result);
+			if (!analysis.isExpected()) {
+				throw new IOException(analysis.getErrorMessage() + result);
+			}
+		}
+	}
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventTask.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventTask.java
new file mode 100644
index 0000000..2586adf
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventTask.java
@@ -0,0 +1,163 @@
+/*
+ * 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.asterix.event.management;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.Date;
+import java.util.List;
+import java.util.Timer;
+import java.util.TimerTask;
+import org.apache.log4j.Logger;
+
+import edu.uci.ics.asterix.event.driver.EventDriver;
+import edu.uci.ics.asterix.event.schema.cluster.Node;
+import edu.uci.ics.asterix.event.schema.event.Event;
+import edu.uci.ics.asterix.event.schema.pattern.Pattern;
+import edu.uci.ics.asterix.event.schema.pattern.Period;
+
+public class EventTask extends TimerTask {
+
+	public static enum State {
+		INITIALIZED, IN_PROGRESS, COMPLETED, FAILED
+	}
+
+	private static final Logger logger = Logger.getLogger(EventTask.class
+			.getName());
+
+	private Pattern pattern;
+	private Event event;
+	private long interval = 0;
+	private long initialDelay = 0;
+	private int maxOccurs = Integer.MAX_VALUE;
+	private int occurrenceCount = 0;
+	private Timer timer;
+	private String taskScript;
+	private Node location;
+	private List<String> taskArgs;
+	private EventrixClient client;
+	private List<Node> candidateLocations;
+	private boolean dynamicLocation = false;
+	private boolean reuseLocation = false;
+	private State state;
+
+	
+
+	public EventTask(Pattern pattern, EventrixClient client) {
+		this.pattern = pattern;
+		this.client = client;
+		Period period = pattern.getPeriod();
+		if (period != null && period.getAbsvalue() != null) {
+			this.interval = EventUtil.parseTimeInterval(period.getAbsvalue(),
+					period.getUnit());
+		}
+		if (pattern.getDelay() != null) {
+			this.initialDelay = EventUtil.parseTimeInterval(new ValueType(
+					pattern.getDelay().getValue()), pattern.getDelay()
+					.getUnit());
+		}
+		if (pattern.getMaxOccurs() != null) {
+			this.maxOccurs = pattern.getMaxOccurs();
+		}
+		this.timer = new Timer();
+		taskArgs = EventUtil.getEventArgs(pattern);
+		candidateLocations = EventUtil.getCandidateLocations(pattern,
+				client.getCluster());
+		if (pattern.getEvent().getNodeid().getValue().getRandom() != null
+				&& period != null && maxOccurs > 1) {
+			dynamicLocation = true;
+			reuseLocation = pattern.getEvent().getNodeid().getValue()
+					.getRandom().getRange().isReuse();
+		} else {
+			location = EventUtil.getEventLocation(pattern, candidateLocations,
+					client.getCluster());
+		}
+		String scriptsDir;
+		if (location.getId().equals(EventDriver.CLIENT_NODE_ID)) {
+			scriptsDir = client.getEventsDir() + File.separator + "events";
+		} else {
+			scriptsDir = client.getCluster().getWorkingDir().getDir()
+					+ File.separator + "eventrix" + File.separator + "events";
+		}
+		event = EventUtil.getEvent(pattern, client.getEvents());
+		taskScript = scriptsDir + File.separator + event.getScript();
+		state = State.INITIALIZED;
+	}
+
+	public void start() {
+		if (interval > 0) {
+			timer.schedule(this, initialDelay, interval);
+		} else {
+			timer.schedule(this, initialDelay);
+		}
+	}
+
+	@Override
+	public void run() {
+		if (candidateLocations.size() == 0) {
+			timer.cancel();
+			client.notifyCompletion(new EventTaskReport(this));
+		} else {
+			if (dynamicLocation) {
+				location = EventUtil.getEventLocation(pattern,
+						candidateLocations, client.getCluster());
+				if (!reuseLocation) {
+					candidateLocations.remove(location);
+				}
+			}
+
+			logger.debug(EventUtil.dateFormat.format(new Date()) + " "
+					+ "EVENT " + pattern.getEvent().getType().toUpperCase()
+					+ " at " + location.getId().toUpperCase());
+			try {
+				if (!client.isDryRun()) {
+					new EventExecutor().executeEvent(location, taskScript,
+							taskArgs, event.isDaemon(), client.getCluster(),
+							pattern, client.getErrorHandler(), client);
+				}
+				occurrenceCount++;
+				if (occurrenceCount >= maxOccurs) {
+					timer.cancel();
+					client.notifyCompletion(new EventTaskReport(this));
+				}
+			} catch (IOException ioe) {
+				timer.cancel();
+				client.notifyCompletion(new EventTaskReport(this, false, ioe));
+			}
+		}
+
+	}
+
+	public Node getLocation() {
+		return location;
+	}
+
+	public long getInterval() {
+		return interval;
+	}
+
+	public long getInitialDelay() {
+		return initialDelay;
+	}
+
+	public Pattern getPattern() {
+		return pattern;
+	}
+
+	public State getState() {
+		return state;
+	}
+
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventTaskReport.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventTaskReport.java
new file mode 100644
index 0000000..7ad3682
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventTaskReport.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright 2009-2012 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.event.management;
+
+import java.io.Serializable;
+
+public class EventTaskReport implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+    private final EventTask task;
+    private final boolean success;
+    private final Exception e;
+
+    public EventTaskReport(EventTask task, boolean success, Exception e) {
+        this.task = task;
+        this.success = success;
+        this.e = e;
+    }
+
+    public EventTaskReport(EventTask task) {
+        this.task = task;
+        this.success = true;
+        this.e = null;
+    }
+
+    public Exception getException() {
+        return e;
+    }
+
+    public EventTask getTask() {
+        return task;
+    }
+
+    public boolean isSuccess() {
+        return success;
+    }
+
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventUtil.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventUtil.java
new file mode 100644
index 0000000..7fe0d7c
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventUtil.java
@@ -0,0 +1,259 @@
+/*
+ * 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.asterix.event.management;
+
+import java.io.IOException;
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.List;
+
+import edu.uci.ics.asterix.event.driver.EventDriver;
+import edu.uci.ics.asterix.event.management.ValueType.Type;
+import edu.uci.ics.asterix.event.schema.cluster.Cluster;
+import edu.uci.ics.asterix.event.schema.cluster.Node;
+import edu.uci.ics.asterix.event.schema.event.Event;
+import edu.uci.ics.asterix.event.schema.event.Events;
+import edu.uci.ics.asterix.event.schema.pattern.Pattern;
+
+public class EventUtil {
+
+	public static final String EVENTS_DIR = "events";
+	public static final String CLUSTER_CONF = "config/cluster.xml";
+	public static final String PATTERN_CONF = "config/pattern.xml";
+	public static final DateFormat dateFormat = new SimpleDateFormat(
+			"yyyy/MM/dd HH:mm:ss");
+
+	private static final String IP_LOCATION = "IP_LOCATION";
+	private static final String CLUSTER_ENV = "ENV";
+	private static final String SCRIPT = "SCRIPT";
+	private static final String ARGS = "ARGS";
+	private static final String EXECUTE_SCRIPT = "events/execute.sh";
+
+	public static long parseTimeInterval(ValueType v, String unit)
+			throws IllegalArgumentException {
+		int val = 0;
+		switch (v.getType()) {
+		case ABS:
+			val = Integer.parseInt(v.getAbsoluteValue());
+			break;
+		case RANDOM_MIN_MAX:
+			val = Randomizer.getInstance().getRandomInt(v.getMin(), v.getMax());
+			break;
+		case RANDOM_RANGE:
+			String[] values = v.getRangeSet();
+			val = Integer.parseInt(values[Randomizer.getInstance()
+					.getRandomInt(0, values.length - 1)]);
+			break;
+		}
+		return computeInterval(val, unit);
+	}
+
+	public static long parseTimeInterval(String v, String unit)
+			throws IllegalArgumentException {
+		int value = Integer.parseInt(v);
+		return computeInterval(value, unit);
+	}
+
+	private static long computeInterval(int val, String unit) {
+		int vmult = 1;
+		if ("hr".equalsIgnoreCase(unit)) {
+			vmult = 3600 * 1000;
+		} else if ("min".equalsIgnoreCase(unit)) {
+			vmult = 60 * 1000;
+		} else if ("sec".equalsIgnoreCase(unit)) {
+			vmult = 1000;
+		} else
+			throw new IllegalArgumentException(
+					" invalid unit value specified for frequency (hr,min,sec)");
+		return val * vmult;
+
+	}
+
+	public static Event getEvent(Pattern pattern, Events events) {
+		for (Event event : events.getEvent()) {
+			if (event.getType().equals(pattern.getEvent().getType())) {
+				return event;
+			}
+		}
+		throw new IllegalArgumentException(" Unknown event type"
+				+ pattern.getEvent().getType());
+	}
+
+	public static Node getEventLocation(Pattern pattern,
+			List<Node> candidateLocations, Cluster cluster) {
+		ValueType value = new ValueType(pattern.getEvent().getNodeid()
+				.getValue());
+		Node location = null;
+		Type vtype = value.getType();
+
+		switch (vtype) {
+		case ABS:
+			location = getNodeFromId(value.getAbsoluteValue(), cluster);
+			break;
+		case RANDOM_RANGE:
+			int nodeIndex = Randomizer.getInstance().getRandomInt(0,
+					candidateLocations.size() - 1);
+			location = candidateLocations.get(nodeIndex);
+			break;
+		case RANDOM_MIN_MAX:
+			throw new IllegalStateException(
+					" Canont configure a min max value range for location");
+		}
+		return location;
+
+	}
+
+	public static List<Node> getCandidateLocations(Pattern pattern,
+			Cluster cluster) {
+		ValueType value = new ValueType(pattern.getEvent().getNodeid()
+				.getValue());
+		List<Node> candidateList = new ArrayList<Node>();
+		switch (value.getType()) {
+		case ABS:
+			candidateList.add(getNodeFromId(value.getAbsoluteValue(), cluster));
+			break;
+		case RANDOM_RANGE:
+			boolean anyOption = false;
+			String[] values = value.getRangeSet();
+			for (String v : values) {
+				if (v.equalsIgnoreCase("ANY")) {
+					anyOption = true;
+				}
+			}
+			if (anyOption) {
+				for (Node node : cluster.getNode()) {
+					candidateList.add(node);
+				}
+			} else {
+				boolean found = false;
+				for (String v : values) {
+					for (Node node : cluster.getNode()) {
+						if (node.getId().equals(v)) {
+							candidateList.add(node);
+							found = true;
+							break;
+						}
+					}
+					if (!found) {
+						throw new IllegalStateException("Unknonw nodeId : " + v);
+					}
+					found = false;
+				}
+
+			}
+			String[] excluded = value.getRangeExcluded();
+			if (excluded != null && excluded.length > 0) {
+				List<Node> markedForRemoval = new ArrayList<Node>();
+				for (String exclusion : excluded) {
+					for (Node node : candidateList) {
+						if (node.getId().equals(exclusion)) {
+							markedForRemoval.add(node);
+						}
+					}
+				}
+				candidateList.removeAll(markedForRemoval);
+			}
+			break;
+		case RANDOM_MIN_MAX:
+			throw new IllegalStateException(
+					" Invalid value configured for location");
+		}
+		return candidateList;
+	}
+
+	private static Node getNodeFromId(String nodeid, Cluster cluster) {
+		if (nodeid.equals(EventDriver.CLIENT_NODE.getId())) {
+			return EventDriver.CLIENT_NODE;
+		}
+
+		if (nodeid.equals(cluster.getMasterNode().getId())) {
+			String ram = cluster.getMasterNode().getRam() == null ? cluster
+					.getRam() : cluster.getMasterNode().getRam();
+			String logDir = cluster.getMasterNode().getLogdir() == null ? cluster
+					.getLogdir() : cluster.getMasterNode().getLogdir();
+			String javaHome = cluster.getMasterNode().getJavaHome() == null ? cluster
+					.getJavaHome() : cluster.getMasterNode().getJavaHome();
+			return new Node(cluster.getMasterNode().getId(), cluster
+					.getMasterNode().getIp(), ram, javaHome, logDir, null);
+		}
+
+		List<Node> nodeList = cluster.getNode();
+		for (Node node : nodeList) {
+			if (node.getId().equals(nodeid)) {
+				return node;
+			}
+		}
+		StringBuffer buffer = new StringBuffer();
+		buffer.append(EventDriver.CLIENT_NODE.getId() + ",");
+		buffer.append(cluster.getMasterNode().getId() + ",");
+		for (Node v : cluster.getNode()) {
+			buffer.append(v.getId() + ",");
+		}
+		buffer.deleteCharAt(buffer.length() - 1);
+		throw new IllegalArgumentException("Unknown node id :" + nodeid
+				+ " valid ids:" + buffer);
+	}
+
+	public static void executeEventScript(Node node, String script,
+			List<String> args, Cluster cluster) throws IOException,
+			InterruptedException {
+		List<String> pargs = new ArrayList<String>();
+		pargs.add("/bin/bash");
+		pargs.add(EventDriver.getEventsDir() + "/" + EXECUTE_SCRIPT);
+		StringBuffer argBuffer = new StringBuffer();
+		String env = EventDriver.getStringifiedEnv(cluster) + " " + IP_LOCATION
+				+ "=" + node.getIp();
+		if (args != null) {
+			for (String arg : args) {
+				argBuffer.append(arg + " ");
+			}
+		}
+		ProcessBuilder pb = new ProcessBuilder(pargs);
+		pb.environment().putAll(EventDriver.getEnvironment());
+		pb.environment().put(IP_LOCATION, node.getIp());
+		pb.environment().put(CLUSTER_ENV, env);
+		pb.environment().put(SCRIPT, script);
+		pb.environment().put(ARGS, argBuffer.toString());
+		pb.start();
+	}
+
+	public static void executeLocalScript(Node node, String script,
+			List<String> args) throws IOException, InterruptedException {
+		List<String> pargs = new ArrayList<String>();
+		pargs.add("/bin/bash");
+		pargs.add(script);
+		if (args != null) {
+			pargs.addAll(args);
+		}
+		ProcessBuilder pb = new ProcessBuilder(pargs);
+		pb.environment().putAll(EventDriver.getEnvironment());
+		pb.environment().put(IP_LOCATION, node.getIp());
+		pb.start();
+	}
+
+	public static List<String> getEventArgs(Pattern pattern) {
+		List<String> pargs = new ArrayList<String>();
+		if (pattern.getEvent().getPargs() == null) {
+			return pargs;
+		}
+		String[] args = pattern.getEvent().getPargs().split(" ");
+		for (String arg : args) {
+			pargs.add(arg.trim());
+		}
+		return pargs;
+	}
+
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventrixClient.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventrixClient.java
new file mode 100644
index 0000000..4cd4b82
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/EventrixClient.java
@@ -0,0 +1,203 @@
+/*
+ * 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.asterix.event.management;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.LinkedBlockingQueue;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.logging.Logger;
+
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.JAXBException;
+import javax.xml.bind.Unmarshaller;
+
+import edu.uci.ics.asterix.event.driver.EventDriver;
+import edu.uci.ics.asterix.event.schema.cluster.Cluster;
+import edu.uci.ics.asterix.event.schema.cluster.Node;
+import edu.uci.ics.asterix.event.schema.event.Events;
+import edu.uci.ics.asterix.event.schema.pattern.Event;
+import edu.uci.ics.asterix.event.schema.pattern.Nodeid;
+import edu.uci.ics.asterix.event.schema.pattern.Pattern;
+import edu.uci.ics.asterix.event.schema.pattern.Patterns;
+import edu.uci.ics.asterix.event.schema.pattern.Value;
+
+public class EventrixClient {
+
+	private static final Logger LOGGER = Logger.getLogger(EventrixClient.class
+			.getName());
+
+	private EventTask[] tasks;
+	private boolean dryRun = false;
+	private LinkedBlockingQueue<EventTaskReport> msgInbox = new LinkedBlockingQueue<EventTaskReport>();
+	private AtomicInteger pendingTasks = new AtomicInteger(0);
+	private final Cluster cluster;
+	private IPatternListener listener;
+	private IOutputHandler outputHandler;
+	private Events events;
+	private String eventsDir;
+
+	public EventrixClient(String eventsDir, Cluster cluster, boolean dryRun,
+			IOutputHandler outputHandler) throws Exception {
+		this.eventsDir = eventsDir;
+		this.events = initializeEvents();
+		this.cluster = cluster;
+		this.dryRun = dryRun;
+		this.outputHandler = outputHandler;
+		if (!dryRun) {
+			initializeCluster(eventsDir);
+		}
+	}
+
+	public void submit(Patterns patterns) throws Exception {
+		initTasks(patterns);
+		try {
+			waitForCompletion();
+		} catch (InterruptedException ie) {
+			LOGGER.info("Interrupted exception :" + ie);
+		} catch (Exception e) {
+			throw e;
+		}
+
+	}
+
+	public void submit(Patterns patterns, IPatternListener listener)
+			throws Exception {
+		this.listener = listener;
+		initTasks(patterns);
+	}
+
+	private void initTasks(Patterns patterns) {
+		tasks = new EventTask[patterns.getPattern().size()];
+		pendingTasks.set(tasks.length);
+		int index = 0;
+		for (Pattern pattern : patterns.getPattern()) {
+			tasks[index] = new EventTask(pattern, this);
+			tasks[index].start();
+			index++;
+		}
+	}
+
+	public Cluster getCluster() {
+		return cluster;
+	}
+
+	public boolean isDryRun() {
+		return dryRun;
+	}
+
+	public Events getEvents() {
+		return events;
+	}
+
+	public String getEventsDir() {
+		return eventsDir;
+	}
+
+	public synchronized void notifyCompletion(EventTaskReport report) {
+
+		if (report.isSuccess()) {
+			if (listener != null) {
+				pendingTasks.decrementAndGet();
+				listener.eventCompleted(report);
+				if (pendingTasks.get() == 0) {
+					listener.jobCompleted();
+				}
+			} else {
+				try {
+					msgInbox.put(report);
+				} catch (InterruptedException e) {
+				}
+			}
+		} else {
+			for (EventTask t : tasks) {
+				if (t.getState() == EventTask.State.INITIALIZED
+						|| t.getState() == EventTask.State.IN_PROGRESS) {
+					t.cancel();
+				}
+			}
+			if (listener != null) {
+				listener.jobFailed(report);
+			} else {
+				try {
+					msgInbox.put(report);
+				} catch (InterruptedException e) {
+				}
+			}
+		}
+	}
+
+	private void waitForCompletion() throws Exception {
+		while (true) {
+			EventTaskReport report = msgInbox.take();
+			if (report.isSuccess()) {
+				if (pendingTasks.decrementAndGet() == 0) {
+					break;
+				}
+			} else {
+				throw new RuntimeException(report.getException().getMessage());
+			}
+		}
+	}
+
+	private void initializeCluster(String eventsDir) throws Exception {
+		Patterns patterns = initPattern(eventsDir);
+		submit(patterns);
+	}
+
+	private Patterns initPattern(String eventsDir) {
+		Nodeid nodeid = new Nodeid(new Value(null,
+				EventDriver.CLIENT_NODE.getId()));
+		List<Pattern> patternList = new ArrayList<Pattern>();
+		String workingDir = cluster.getWorkingDir().getDir();
+		String username = cluster.getUsername() == null ? System
+				.getProperty("user.name") : cluster.getUsername();
+		patternList.add(getDirectoryTransferPattern(username, eventsDir,
+				nodeid, cluster.getMasterNode().getIp(), workingDir));
+
+		if (!cluster.getWorkingDir().isNFS()) {
+			for (Node node : cluster.getNode()) {
+				patternList.add(getDirectoryTransferPattern(username,
+						eventsDir, nodeid, node.getIp(), workingDir));
+			}
+		}
+		Patterns patterns = new Patterns(patternList);
+		return patterns;
+	}
+
+	private Pattern getDirectoryTransferPattern(String username, String src,
+			Nodeid srcNode, String destNodeIp, String destDir) {
+		String pargs = username + " " + src + " " + destNodeIp + " " + destDir;
+		Event event = new Event("directory_transfer", srcNode, pargs);
+		return new Pattern(null, 1, null, event);
+	}
+
+	public IOutputHandler getErrorHandler() {
+		return outputHandler;
+	}
+
+	private Events initializeEvents() throws JAXBException,
+			FileNotFoundException {
+		File file = new File(eventsDir + File.separator + "events"
+				+ File.separator + "events.xml");
+		JAXBContext eventCtx = JAXBContext.newInstance(Events.class);
+		Unmarshaller unmarshaller = eventCtx.createUnmarshaller();
+		events = (Events) unmarshaller.unmarshal(file);
+		return events;
+	}
+
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/IOutputHandler.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/IOutputHandler.java
new file mode 100644
index 0000000..c7929cb
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/IOutputHandler.java
@@ -0,0 +1,22 @@
+/*
+ * 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.asterix.event.management;
+
+import edu.uci.ics.asterix.event.schema.pattern.Event;
+
+public interface IOutputHandler {
+
+    public OutputAnalysis reportEventOutput(Event event, String output);
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/IPatternListener.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/IPatternListener.java
new file mode 100644
index 0000000..06a56cf
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/IPatternListener.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.asterix.event.management;
+
+public interface IPatternListener {
+
+    public void eventCompleted(EventTaskReport report);
+
+    public void jobCompleted();
+
+    public void jobFailed(EventTaskReport report);
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/OutputAnalysis.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/OutputAnalysis.java
new file mode 100644
index 0000000..2845ede
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/OutputAnalysis.java
@@ -0,0 +1,34 @@
+/*
+ * 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.asterix.event.management;
+
+public class OutputAnalysis {
+
+    private final boolean expected;
+    private final String errorMessage;
+
+    public OutputAnalysis(boolean expected, String errorMessage) {
+        this.expected = expected;
+        this.errorMessage = errorMessage;
+    }
+
+    public boolean isExpected() {
+        return expected;
+    }
+
+    public String getErrorMessage() {
+        return errorMessage;
+    }
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/Randomizer.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/Randomizer.java
new file mode 100644
index 0000000..e59e154
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/Randomizer.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.asterix.event.management;
+
+import java.util.Random;
+import java.util.logging.Logger;
+
+public class Randomizer {
+
+	private static final Logger LOGGER = Logger.getLogger(Randomizer.class
+			.getName());
+	private static Randomizer INSTANCE;
+	private final Random random;
+	private final int seed;
+
+	public static Randomizer getInstance(int seed) {
+		if (INSTANCE == null) {
+			INSTANCE = new Randomizer(seed);
+		}
+		return INSTANCE;
+	}
+
+	public static Randomizer getInstance() {
+		if (INSTANCE == null) {
+			INSTANCE = new Randomizer();
+		}
+		return INSTANCE;
+	}
+
+	private Randomizer() {
+		Random rm = new Random();
+		seed = rm.nextInt(10000);
+		random = new Random(seed);
+		LOGGER.info("SEED:" + seed);
+	}
+
+	private Randomizer(int seed) {
+		this.seed = seed;
+		random = new Random(seed);
+		LOGGER.info("SEED:" + seed);
+	}
+
+	public Random getRandom() {
+		return random;
+	}
+
+	public int getSeed() {
+		return seed;
+	}
+
+	public int getRandomInt(int min, int max) {
+		return min + random.nextInt(max - min + 1);
+	}
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/ValueType.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/ValueType.java
new file mode 100644
index 0000000..8aa5cc5
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/ValueType.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.asterix.event.management;
+
+import edu.uci.ics.asterix.event.schema.pattern.Value;
+
+public class ValueType {
+
+	public static enum Type {
+		ABS, RANDOM_RANGE, RANDOM_MIN_MAX
+	}
+
+	private Value value;
+	private Type type;
+
+	public ValueType(Value value) {
+		this.value = value;
+		if (value.getAbsvalue() != null) {
+			type = Type.ABS;
+		} else if (value.getRandom() != null) {
+			if (value.getRandom().getMinmax() != null) {
+				type = Type.RANDOM_MIN_MAX;
+			} else if (value.getRandom().getRange() != null) {
+				type = Type.RANDOM_RANGE;
+			} else {
+				throw new IllegalStateException("Incorrect value type");
+			}
+		}
+	}
+
+	public int getMin() {
+		switch (type) {
+		case RANDOM_MIN_MAX:
+			return Integer.parseInt(value.getRandom().getMinmax().getMin());
+		default:
+			throw new IllegalStateException("");
+		}
+	}
+
+	public int getMax() {
+		switch (type) {
+		case RANDOM_MIN_MAX:
+			return Integer.parseInt(value.getRandom().getMinmax().getMax());
+		default:
+			throw new IllegalStateException("");
+		}
+	}
+
+	public String[] getRangeSet() {
+		switch (type) {
+		case RANDOM_RANGE:
+			return value.getRandom().getRange().getSet().split(" ");
+		default:
+			throw new IllegalStateException("");
+		}
+	}
+
+	public String[] getRangeExcluded() {
+		switch (type) {
+		case RANDOM_RANGE:
+			String exl = value.getRandom().getRange().getExclude();
+			return exl != null ? exl.split(" ") : null;
+		default:
+			throw new IllegalStateException("");
+		}
+	}
+
+	public String getAbsoluteValue() {
+		switch (type) {
+		case ABS:
+			return value.getAbsvalue();
+		default:
+			throw new IllegalStateException("");
+		}
+	}
+
+	public Type getType() {
+		return type;
+	}
+
+}
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/xml/PatternParser.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/xml/PatternParser.java
new file mode 100644
index 0000000..426279c
--- /dev/null
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/xml/PatternParser.java
@@ -0,0 +1,23 @@
+/*
+ * 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.asterix.event.xml;
+
+public class PatternParser {
+
+	public static void parsePattern(String path){
+		
+	}
+}
+
diff --git a/asterix-events/src/main/resources/events/backup/backup.sh b/asterix-events/src/main/resources/events/backup/backup.sh
new file mode 100755
index 0000000..cff37df
--- /dev/null
+++ b/asterix-events/src/main/resources/events/backup/backup.sh
@@ -0,0 +1,19 @@
+WORKING_DIR=$1
+ASTERIX_INSTANCE_NAME=$2
+ASTERIX_DATA_DIR=$3
+BACKUP_ID=$4
+HDFS_URL=$5
+HADOOP_VERSION=$6
+HDFS_BACKUP_DIR=$7
+NODE_ID=$8
+
+export HADOOP_HOME=$WORKING_DIR/hadoop-$HADOOP_VERSION
+
+nodeStores=$(echo $ASTERIX_DATA_DIR | tr "," "\n")
+for nodeStore in $nodeStores
+do
+  NODE_BACKUP_DIR=$HDFS_BACKUP_DIR/$ASTERIX_INSTANCE_NAME/$BACKUP_ID/$NODE_ID/$nodeStore
+  $HADOOP_HOME/bin/hadoop fs -mkdir $HDFS_URL/$NODE_BACKUP_DIR
+  echo "$HADOOP_HOME/bin/hadoop fs -copyFromLocal $nodeStore/$NODE_ID $HDFS_URL/$NODE_BACKUP_DIR" >> ~/backup.log
+  $HADOOP_HOME/bin/hadoop fs -copyFromLocal $nodeStore/$NODE_ID/$ASTERIX_INSTANCE_NAME/* $HDFS_URL/$NODE_BACKUP_DIR/
+done
diff --git a/asterix-events/src/main/resources/events/cc_failure/cc_failure.sh b/asterix-events/src/main/resources/events/cc_failure/cc_failure.sh
new file mode 100755
index 0000000..aa722e5
--- /dev/null
+++ b/asterix-events/src/main/resources/events/cc_failure/cc_failure.sh
@@ -0,0 +1,6 @@
+#kill -9 `ps -ef  | grep hyracks | grep -v grep | cut -d "/" -f1 | tr -s " " | cut -d " " -f2`
+CC_PARENT_ID_INFO=`ps -ef  | grep asterix | grep cc_start | grep -v ssh`
+CC_PARENT_ID=`echo $CC_PARENT_ID_INFO | tr -s " " | cut -d " " -f2`
+CC_ID_INFO=`ps -ef | grep asterix | grep $CC_PARENT_ID | grep -v bash`
+CC_ID=`echo $CC_ID_INFO |  tr -s " " | cut -d " " -f2`
+kill -9 $CC_ID
diff --git a/asterix-events/src/main/resources/events/cc_start/cc_start.sh b/asterix-events/src/main/resources/events/cc_start/cc_start.sh
new file mode 100755
index 0000000..37645bc
--- /dev/null
+++ b/asterix-events/src/main/resources/events/cc_start/cc_start.sh
@@ -0,0 +1,5 @@
+if [ ! -d $LOG_DIR ]; 
+then 
+  mkdir -p $LOG_DIR
+fi
+$ASTERIX_HOME/bin/asterixcc -client-net-ip-address $CLIENT_NET_IP -client-net-port 1098 -cluster-net-ip-address $CLUSTER_NET_IP -cluster-net-port 1099 -http-port 8888  &> $LOG_DIR/cc.log
diff --git a/asterix-events/src/main/resources/events/events.xml b/asterix-events/src/main/resources/events/events.xml
new file mode 100644
index 0000000..857ee5a
--- /dev/null
+++ b/asterix-events/src/main/resources/events/events.xml
@@ -0,0 +1,100 @@
+<events xmlns="events">
+  <event>
+    <type>node_join</type>
+    <script>node_join/nc_join.sh</script>
+    <description>Creates a NodeController process at a specified location.</description>
+    <args>location_of_cc location(hostname/ip_address) node_controller_id</args>
+    <daemon>true</daemon>
+  </event>
+  <event>
+    <type>node_failure</type>
+    <script>node_failure/nc_failure.sh</script>
+    <description>Kills a NodeController process at a specified location.</description>
+    <args>node_controller_id</args>
+    <daemon>false</daemon>
+  </event>
+  <event>
+    <type>cc_start</type>
+    <script>cc_start/cc_start.sh</script>
+    <description>Starts a  ClusterController process at a specified location.</description>
+    <args></args>
+    <daemon>true</daemon>
+  </event>
+  <event>
+    <type>cc_failure</type>
+    <script>cc_failure/cc_failure.sh</script>
+    <description>Kills the Cluster Controller process running at a specified location.</description>
+    <args></args>
+    <daemon>false</daemon>
+  </event>
+  <event>
+    <type>node_restart</type>
+    <script>node_restart/nc_restart.sh</script>
+    <description>Shuts and restarts a NodeControllerProcess after a specified time interval, at a specified location</description>
+    <args>address of cc, node controller id and sleep interval(seconds)</args>
+    <daemon>true</daemon>
+  </event>
+  <event>
+    <type>asterix_deploy</type>
+    <script>asterix_deploy/asterix_deploy.sh</script>
+    <description>Deploys Asterix application on a cluster running hyracks</description>
+    <args>IP address of the node running the hyracks cluster controller</args>
+    <daemon>false</daemon>
+  </event>
+  <event>
+    <type>zookeeper_start</type>
+    <script>zookeeper/start.sh</script>
+    <description>Launches ZooKeeper server process</description>
+    <args>IP address of the ZooKeeper server</args>
+    <daemon>true</daemon>
+  </event>
+  <event>
+    <type>zookeeper_stop</type>
+    <script>zookeeper/stop.sh</script>
+    <description>Terminates ZooKeeper server process</description>
+    <args>IP address of the ZooKeeper server</args>
+    <daemon>false</daemon>
+  </event>
+  <event>
+    <type>file_transfer</type>
+    <script>file/transfer.sh</script>
+    <description>Copies a file on the local file system to a remote node</description>
+    <args>local_source_path destination_node destination_path</args>
+    <daemon>false</daemon>
+  </event>
+  <event>
+    <type>directory_transfer</type>
+    <script>file/dir_transfer.sh</script>
+    <description>Copies a directory (and its contents) on the local file system to a remote node</description>
+    <args>local_source_path destination_node destination_path</args>
+    <daemon>false</daemon>
+  </event>
+  <event>
+    <type>file_delete</type>
+    <script>file/delete.sh</script>
+    <description>Deletes a file on the local file system to a remote node</description>
+    <args>local_source_path destination_node destination_path</args>
+    <daemon>false</daemon>
+  </event>
+  <event>
+    <type>backup</type>
+    <script>backup/backup.sh</script>
+    <description>Takes a backup of an Asterix instance</description>
+    <args>Asterix_data_dir HDFSurl</args>
+    <daemon>false</daemon>
+  </event>
+  <event>
+    <type>restore</type>
+    <script>restore/restore.sh</script>
+    <description>Restores an Asterix instance from a back up</description>
+    <args>Asterix_data_dir HDFSurl</args>
+    <daemon>false</daemon>
+  </event>
+  <event>
+    <type>hdfs_delete</type>
+    <script>hdfs/delete.sh</script>
+    <description>Deletes an HDFS path</description>
+    <args>WorkingDir HadoopVersion HDFSUrl Path_to_Delete</args>
+    <daemon>false</daemon>
+  </event>
+</events>
diff --git a/asterix-events/src/main/resources/events/file/delete.sh b/asterix-events/src/main/resources/events/file/delete.sh
new file mode 100755
index 0000000..d5ac3ff
--- /dev/null
+++ b/asterix-events/src/main/resources/events/file/delete.sh
@@ -0,0 +1,3 @@
+PATH_TO_DELETE=$1
+echo "rm -rf $PATH_TO_DELETE" >> ~/backup.log
+rm -rf $PATH_TO_DELETE
diff --git a/asterix-events/src/main/resources/events/file/dir_transfer.sh b/asterix-events/src/main/resources/events/file/dir_transfer.sh
new file mode 100755
index 0000000..af7da70
--- /dev/null
+++ b/asterix-events/src/main/resources/events/file/dir_transfer.sh
@@ -0,0 +1,7 @@
+USERNAME=$1
+DIR_TO_TRANSFER=$2
+DEST_HOST=$3
+DEST_DIR=$4
+ssh -l $USERNAME $DEST_HOST "mkdir -p $DEST_DIR"
+echo "scp -r $DIR_TO_TRANSFER $USERNAME@$DEST_HOST:$DEST_DIR/" 
+scp -r $DIR_TO_TRANSFER $USERNAME@$DEST_HOST:$DEST_DIR/
diff --git a/asterix-events/src/main/resources/events/file/transfer.sh b/asterix-events/src/main/resources/events/file/transfer.sh
new file mode 100755
index 0000000..fbd4554
--- /dev/null
+++ b/asterix-events/src/main/resources/events/file/transfer.sh
@@ -0,0 +1,24 @@
+USERNAME=$1
+FILE_TO_TRANSFER=$2
+DEST_HOST=$3
+DEST_DIR=$4
+POST_ACTION=$5
+ssh -l $USERNAME $DEST_HOST "mkdir -p $DEST_DIR"
+echo "scp $FILE_TO_TRANSFER $USERNAME@$DEST_HOST:$DEST_DIR/" 
+scp $FILE_TO_TRANSFER $USERNAME@$DEST_HOST:$DEST_DIR/
+if [ $POST_ACTION == "unpack" ]
+ then 
+ filename=`echo ${FILE_TO_TRANSFER##*/}`
+ fileType=`echo ${FILE_TO_TRANSFER##*.}`
+ if [ $fileType == "tar" ]
+ then 
+   echo "ssh -l $USERNAME $DEST_HOST cd $DEST_DIR && tar xf $filename"
+   ssh -l $USERNAME $DEST_HOST "cd $DEST_DIR && tar xf $filename"
+ else if [ $fileType == "zip" ]
+   then
+     echo "ssh -l $USERNAME $DEST_HOST unzip -o -q -d $DEST_DIR $DEST_DIR/$filename"
+     ssh -l $USERNAME $DEST_HOST "unzip -o -q -d $DEST_DIR $DEST_DIR/$filename"
+     ssh -l $USERNAME $DEST_HOST "chmod -R 755  $DEST_DIR"
+   fi 
+ fi
+fi
diff --git a/asterix-events/src/main/resources/events/hdfs/delete.sh b/asterix-events/src/main/resources/events/hdfs/delete.sh
new file mode 100755
index 0000000..6ff54ee
--- /dev/null
+++ b/asterix-events/src/main/resources/events/hdfs/delete.sh
@@ -0,0 +1,7 @@
+WORKING_DIR=$1
+HADOOP_VERSION=$2
+HDFS_URL=$3
+HDFS_PATH=$4
+export HADOOP_HOME=$WORKING_DIR/hadoop-$HADOOP_VERSION
+echo "$HADOOP_HOME/bin/hadoop fs -rmr $HDFS_URL/$HDFS_PATH"
+$HADOOP_HOME/bin/hadoop fs -rmr $HDFS_URL/$HDFS_PATH
diff --git a/asterix-events/src/main/resources/events/node_failure/nc_failure.sh b/asterix-events/src/main/resources/events/node_failure/nc_failure.sh
new file mode 100755
index 0000000..fc4a0be
--- /dev/null
+++ b/asterix-events/src/main/resources/events/node_failure/nc_failure.sh
@@ -0,0 +1,7 @@
+NC_ID=$1
+
+INFO=`ps -ef | grep nc_join | grep -v grep | grep -v ssh| grep $NC_ID | head -n 1`
+PARENT_ID=`echo  $INFO | cut -d " "  -f2`
+PID_INFO=`ps -ef |  grep asterix | grep -v grep | grep -v nc_join |  grep $PARENT_ID`
+PID=`echo $PID_INFO | cut -d " " -f2`
+kill -9 $PID
diff --git a/asterix-events/src/main/resources/events/node_join/nc_join.sh b/asterix-events/src/main/resources/events/node_join/nc_join.sh
new file mode 100755
index 0000000..e0f5e55
--- /dev/null
+++ b/asterix-events/src/main/resources/events/node_join/nc_join.sh
@@ -0,0 +1,7 @@
+CC_HOST=$1
+NC_ID=$2
+if [ ! -d $LOG_DIR ]; 
+then 
+  mkdir -p $LOG_DIR
+fi
+$ASTERIX_HOME/bin/asterixnc -node-id $NC_ID -cc-host $CC_HOST -cc-port 1099 -cluster-net-ip-address $IP_LOCATION  -data-ip-address $IP_LOCATION &> $LOG_DIR/${NC_ID}.log
diff --git a/asterix-events/src/main/resources/events/node_restart/nc_restart.sh b/asterix-events/src/main/resources/events/node_restart/nc_restart.sh
new file mode 100755
index 0000000..961ce8d
--- /dev/null
+++ b/asterix-events/src/main/resources/events/node_restart/nc_restart.sh
@@ -0,0 +1,21 @@
+CC_HOST=$1
+NC_ID=$2
+SLEEP_TIME=$3
+
+if [ $NC_ID == 'ANY' ]
+then
+  NC_ID="." 
+  PARENT_ID=`ps -ej | tr -s " " | grep nc_join | grep -v grep | grep -v ssh |  cut -d " " -f2 | head -n 1` 
+  PARENT_PROCESS_ENTRY=`ps -ef | grep $PARENT_ID | grep -v grep   | head -n 1`
+  NC_ID=`echo ${PARENT_PROCESS_ENTRY##* }`
+  echo "NCid is $NC_ID" >> ~/try.txt
+else 
+  PARENT_ID=`ps -ej | tr -s " " | grep nc_join | grep -v grep | grep -v ssh | grep $NC_ID | cut -d " " -f2 | head -n 1` 
+fi 
+
+PID=`ps -ej | tr -s " " | grep hyracks | grep -v grep | grep -v nc_join |  grep $PARENT_ID | cut -d " " -f2 | head -n 1`
+kill -9 $PID
+
+sleep $3
+
+$HYRACKS_HOME/hyracks-server/target/hyracks-server-0.2.2-SNAPSHOT-binary-assembly/bin/hyracksnc -node-id $NC_ID -cc-host $CC_HOST -cc-port 1099 -cluster-net-ip-address $IP_LOCATION  -data-ip-address $IP_LOCATION
diff --git a/asterix-events/src/main/resources/events/restore/restore.sh b/asterix-events/src/main/resources/events/restore/restore.sh
new file mode 100755
index 0000000..96f3db4
--- /dev/null
+++ b/asterix-events/src/main/resources/events/restore/restore.sh
@@ -0,0 +1,25 @@
+WORKING_DIR=$1
+ASTERIX_INSTANCE_NAME=$2
+ASTERIX_DATA_DIR=$3
+BACKUP_ID=$4
+HDFS_URL=$5
+HADOOP_VERSION=$6
+HDFS_BACKUP_DIR=$7
+NODE_ID=$8
+
+export HADOOP_HOME=$WORKING_DIR/hadoop-$HADOOP_VERSION
+
+nodeStores=$(echo $ASTERIX_DATA_DIR | tr "," "\n")
+for nodeStore in $nodeStores
+do
+  NODE_BACKUP_DIR=$HDFS_BACKUP_DIR/$ASTERIX_INSTANCE_NAME/$BACKUP_ID/$NODE_ID/$nodeStore
+  DEST_DIR=$nodeStore/$NODE_ID/$ASTERIX_INSTANCE_NAME
+  if [ ! -d $DEST_DIR ]
+  then 
+    mkdir -p $DEST_DIR
+  else 
+    rm -rf $DEST_DIR/*
+  fi
+  echo "$HADOOP_HOME/bin/hadoop fs -copyToLocal $HDFS_URL/$NODE_BACKUP_DIR/  $DEST_DIR/" >> ~/restore.log 
+  $HADOOP_HOME/bin/hadoop fs -copyToLocal $HDFS_URL/$NODE_BACKUP_DIR/*  $DEST_DIR/ 
+done
diff --git a/asterix-events/src/main/resources/schema/cluster.xsd b/asterix-events/src/main/resources/schema/cluster.xsd
new file mode 100644
index 0000000..edfe220
--- /dev/null
+++ b/asterix-events/src/main/resources/schema/cluster.xsd
@@ -0,0 +1,89 @@
+<?xml version="1.0" encoding="ISO-8859-1" ?>
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:cl="cluster" targetNamespace="cluster" elementFormDefault="qualified">
+
+<!-- definition of simple types --> 
+<xs:element name="name" type="xs:string"/>
+<xs:element name="ram" type="xs:string"/>
+<xs:element name="logdir" type="xs:string"/>
+<xs:element name="id" type="xs:string"/>
+<xs:element name="ip" type="xs:string"/>
+<xs:element name="cluster-ip" type="xs:string"/>
+<xs:element name="key" type="xs:string"/>
+<xs:element name="value" type="xs:string"/>
+<xs:element name="dir" type="xs:string"/>
+<xs:element name="NFS" type="xs:boolean"/>
+<xs:element name="store" type="xs:string"/>
+<xs:element name="java_home" type="xs:string"/>
+<xs:element name="username" type="xs:string"/>
+
+<!-- definition of complex elements -->
+<xs:element name="workingDir">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="cl:dir"/>
+      <xs:element ref="cl:NFS"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<xs:element name="master-node">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="cl:id"/>
+      <xs:element ref="cl:ip"/>
+      <xs:element ref="cl:cluster-ip"/>
+      <xs:element ref="cl:java_home" minOccurs="0"/>
+      <xs:element ref="cl:ram" minOccurs="0"/>
+      <xs:element ref="cl:logdir" minOccurs="0"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<xs:element name="property">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="cl:key"/>
+      <xs:element ref="cl:value"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<xs:element name="env">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="cl:property" minOccurs="0" maxOccurs="unbounded"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<xs:element name="node">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="cl:id"/>
+      <xs:element ref="cl:ip"/>
+      <xs:element ref="cl:ram" minOccurs="0"/>
+      <xs:element ref="cl:java_home" minOccurs="0"/>
+      <xs:element ref="cl:logdir" minOccurs="0"/>
+      <xs:element ref="cl:store" minOccurs="0"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<xs:element name="cluster">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="cl:name"/>
+      <xs:element ref="cl:username"/>
+      <xs:element ref="cl:env" minOccurs="0"/>
+      <xs:element ref="cl:ram" minOccurs="0"/>
+      <xs:element ref="cl:java_home" minOccurs="0"/>
+      <xs:element ref="cl:logdir" minOccurs="0"/>
+      <xs:element ref="cl:store" minOccurs="0"/>
+      <xs:element ref="cl:workingDir"/>
+      <xs:element ref="cl:master-node"/>
+      <xs:element ref="cl:node" maxOccurs="unbounded"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+</xs:schema>     
diff --git a/asterix-events/src/main/resources/schema/event.xsd b/asterix-events/src/main/resources/schema/event.xsd
new file mode 100644
index 0000000..a233c18
--- /dev/null
+++ b/asterix-events/src/main/resources/schema/event.xsd
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="ISO-8859-1" ?>
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:es="events" targetNamespace="events" elementFormDefault="qualified">
+
+<!-- definition of simple types --> 
+<xs:element name="script" type="xs:string"/>
+<xs:element name="type" type="xs:string"/>
+<xs:element name="description" type="xs:string"/>
+<xs:element name="args" type="xs:string"/>
+<xs:element name="daemon" type="xs:boolean"/>
+
+<!-- definition of complex elements -->
+
+<xs:element name="event">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="es:type"/>
+      <xs:element ref="es:script"/>
+      <xs:element ref="es:description"/>
+      <xs:element ref="es:args"/>
+      <xs:element ref="es:daemon"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<xs:element name="events">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="es:event" maxOccurs="unbounded"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+ 
+</xs:schema>     
diff --git a/asterix-events/src/main/resources/schema/jaxb-bindings.xjb b/asterix-events/src/main/resources/schema/jaxb-bindings.xjb
new file mode 100644
index 0000000..b5982e0
--- /dev/null
+++ b/asterix-events/src/main/resources/schema/jaxb-bindings.xjb
@@ -0,0 +1,9 @@
+<jxb:bindings version="1.0"
+xmlns:jxb="http://java.sun.com/xml/ns/jaxb"
+xmlns:xs="http://www.w3.org/2001/XMLSchema">
+
+<jxb:globalBindings>
+  <jxb:serializable uid="1"/>
+</jxb:globalBindings>
+
+</jxb:bindings>
diff --git a/asterix-events/src/main/resources/schema/pattern.xsd b/asterix-events/src/main/resources/schema/pattern.xsd
new file mode 100644
index 0000000..4eee880
--- /dev/null
+++ b/asterix-events/src/main/resources/schema/pattern.xsd
@@ -0,0 +1,114 @@
+<?xml version="1.0" encoding="ISO-8859-1" ?>
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:eg="patterns" targetNamespace="patterns">
+
+
+<!-- definition of simple types --> 
+<xs:element name="maxOccurs" type = "xs:int"/> 
+<xs:element name="pargs" type="xs:string"/>
+<xs:element name="absvalue" type="xs:string"/>
+<xs:element name="unit" type="xs:string"/>
+<xs:element name="type" type="xs:string"/>
+<xs:element name="min" type="xs:string"/>
+<xs:element name="max" type="xs:string"/>
+<xs:element name="abs" type="xs:string"/>
+<xs:element name="set" type="xs:string"/>
+<xs:element name="exclude" type="xs:string"/>
+<xs:element name="reuse" type="xs:boolean"/>
+<!-- definition of attributes -->
+
+<!-- definition of complex elements -->
+
+<xs:element name="range">
+  <xs:complexType>
+    <xs:sequence>
+     <xs:element ref="eg:set"/>
+     <xs:element ref="eg:exclude" minOccurs="0"/>
+     <xs:element ref="eg:reuse" minOccurs="0"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<xs:element name="minmax">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="eg:min"/>
+      <xs:element ref="eg:max"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+
+<xs:element name="random">
+  <xs:complexType>
+    <xs:sequence>
+       <xs:element ref="eg:minmax" minOccurs="0"/>
+       <xs:element ref="eg:range" minOccurs="0"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<xs:element name="value">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="eg:random" minOccurs="0"/>
+      <xs:element ref="eg:absvalue" minOccurs="0"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<xs:element name="nodeid">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="eg:value"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<xs:element name="period">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="eg:absvalue"/>
+      <xs:element ref="eg:unit"/>
+    </xs:sequence>   
+  </xs:complexType>
+</xs:element>    
+
+<xs:element name="delay">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="eg:value"/>
+      <xs:element ref="eg:unit"/>
+    </xs:sequence>   
+  </xs:complexType>
+</xs:element>    
+
+<xs:element name="event">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="eg:type"/>
+      <xs:element ref="eg:nodeid"/>
+      <xs:element ref="eg:pargs"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+ 
+<xs:element name="pattern">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="eg:delay"/>
+      <xs:element ref="eg:maxOccurs" maxOccurs="1" minOccurs="0"/>
+      <xs:element ref="eg:period"/>
+      <xs:element ref="eg:event"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<xs:element name="patterns">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="eg:pattern" maxOccurs="unbounded"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+</xs:schema>     
diff --git a/asterix-events/src/main/resources/scripts/execute.sh b/asterix-events/src/main/resources/scripts/execute.sh
new file mode 100755
index 0000000..72234c1
--- /dev/null
+++ b/asterix-events/src/main/resources/scripts/execute.sh
@@ -0,0 +1,22 @@
+USERNAME=$1
+if [ $DAEMON == "false" ]; then 
+  if [ -z $USERNAME ]
+  then
+    cmd_output=$(ssh $IP_LOCATION "$ENV $SCRIPT $ARGS" 2>&1 >/dev/null) 
+    echo "ssh $IP_LOCATION $ENV $SCRIPT $ARGS" >> ./execute.log
+    echo "$cmd_output"
+  else
+    echo "ssh -l $USERNAME $IP_LOCATION $ENV $SCRIPT $ARGS" >> ./execute.log
+    cmd_output=$(ssh -l $USERNAME $IP_LOCATION "$ENV $SCRIPT $ARGS" 2>&1 >/dev/null) 
+    echo "$cmd_output"
+  fi  
+else 
+  if [ -z $USERNAME ];
+  then
+     echo "ssh $IP_LOCATION $ENV $SCRIPT $ARGS &" >> ./execute.log
+     ssh $IP_LOCATION "$ENV $SCRIPT $ARGS" &
+  else
+     echo "ssh -l $USERNAME $IP_LOCATION $ENV $SCRIPT $ARGS &" >> ./execute.log
+     ssh -l $USERNAME $IP_LOCATION "$ENV $SCRIPT $ARGS" &
+  fi   
+fi
diff --git a/asterix-events/src/main/resources/scripts/prepare.sh b/asterix-events/src/main/resources/scripts/prepare.sh
new file mode 100755
index 0000000..e69de29
--- /dev/null
+++ b/asterix-events/src/main/resources/scripts/prepare.sh
diff --git a/asterix-installer/pom.xml b/asterix-installer/pom.xml
new file mode 100644
index 0000000..22af412
--- /dev/null
+++ b/asterix-installer/pom.xml
@@ -0,0 +1,134 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+          <artifactId>asterix</artifactId>
+          <groupId>edu.uci.ics.asterix</groupId>
+          <version>0.0.4-SNAPSHOT</version>
+  </parent>
+  <groupId>edu.uci.ics.asterix</groupId>
+  <artifactId>asterix-installer</artifactId>
+  <version>0.0.4-SNAPSHOT</version>
+
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+  </properties>
+
+  <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.jvnet.jaxb2.maven2</groupId>
+          <artifactId>maven-jaxb2-plugin</artifactId>
+          <executions>
+            <execution>
+              <id>configuration</id>
+              <goals>
+                <goal>generate</goal>
+              </goals>
+              <configuration>
+                <schemaDirectory>src/main/resources/schema</schemaDirectory>
+                <schemaIncludes>
+                  <include>installer-conf.xsd</include>
+                </schemaIncludes>
+                <generatePackage>edu.uci.ics.asterix.installer.schema.conf</generatePackage>
+                <generateDirectory>${project.build.directory}/generated-sources/configuration</generateDirectory>
+              </configuration>
+            </execution>
+            <execution>
+              <id>cluster</id>
+              <goals>
+                <goal>generate</goal>
+              </goals>
+              <configuration>
+                <schemaDirectory>src/main/resources/schema</schemaDirectory>
+                <schemaIncludes>
+                  <include>cluster.xsd</include>
+                </schemaIncludes>
+                <generatePackage>edu.uci.ics.asterix.installer.schema.cluster</generatePackage>
+                <generateDirectory>${project.build.directory}/generated-sources/cluster</generateDirectory>
+              </configuration>
+            </execution>
+          </executions>
+       </plugin>
+       <plugin>
+         <artifactId>maven-assembly-plugin</artifactId>
+         <version>2.2-beta-2</version>
+         <executions>
+           <execution>
+             <configuration>
+               <descriptor>src/main/assembly/binary-assembly.xml</descriptor>
+             </configuration>
+             <phase>package</phase>
+             <goals>
+               <goal>attached</goal>
+             </goals>
+           </execution>
+         </executions>
+       </plugin>
+    </plugins> 
+  </build>
+
+  <dependencies>
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>3.8.1</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>args4j</groupId>
+      <artifactId>args4j</artifactId>
+      <version>2.0.12</version>
+      <type>jar</type>
+      <scope>compile</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.zookeeper</groupId>
+      <artifactId>zookeeper</artifactId>
+      <version>3.4.5</version>
+      <exclusions>
+            <exclusion>
+                <groupId>com.sun.jmx</groupId>
+                <artifactId>jmxri</artifactId>
+            </exclusion>
+            <exclusion>
+                <groupId>com.sun.jdmk</groupId>
+                <artifactId>jmxtools</artifactId>
+            </exclusion>
+            <exclusion>
+                <groupId>javax.jms</groupId>
+                <artifactId>jms</artifactId>
+            </exclusion>
+        </exclusions>
+    </dependency>
+    <dependency>
+        <groupId>commons-io</groupId>
+        <artifactId>commons-io</artifactId>
+        <version>1.4</version>
+    </dependency>
+    <dependency>
+        <groupId>edu.uci.ics.asterix</groupId>
+        <artifactId>asterix-events</artifactId>
+        <version>0.0.4-SNAPSHOT</version>
+        <type>jar</type>
+        <scope>compile</scope>
+    </dependency>
+    <dependency>
+        <groupId>edu.uci.ics.asterix</groupId>
+        <artifactId>asterix-server</artifactId>
+        <version>0.0.4-SNAPSHOT</version>
+        <type>zip</type>
+        <classifier>binary-assembly</classifier>
+    </dependency>
+  </dependencies>
+</project>
diff --git a/asterix-installer/src/main/assembly/binary-assembly.xml b/asterix-installer/src/main/assembly/binary-assembly.xml
new file mode 100644
index 0000000..6a0c130
--- /dev/null
+++ b/asterix-installer/src/main/assembly/binary-assembly.xml
@@ -0,0 +1,108 @@
+<assembly>
+  <id>binary-assembly</id>
+  <formats>
+    <format>zip</format>
+  </formats>
+  <includeBaseDirectory>false</includeBaseDirectory>
+  <fileSets>
+    <fileSet>
+      <directory>src/main/resources/conf</directory>
+      <outputDirectory>conf</outputDirectory>
+    </fileSet>
+    <fileSet>
+      <directory>src/main/resources/clusters</directory>
+      <outputDirectory>clusters</outputDirectory>
+    </fileSet>
+    <fileSet>
+      <directory>src/main/resources/zookeeper</directory>
+      <fileMode>0755</fileMode>
+      <outputDirectory>.installer/zookeeper/bin</outputDirectory>
+    </fileSet>
+    <fileSet>
+      <directory>src/main/resources/scripts</directory>
+      <fileMode>0755</fileMode>
+      <includes>
+        <include>managix</include>
+      </includes>
+      <outputDirectory>bin</outputDirectory>
+    </fileSet>
+    <fileSet>
+      <directory>src/main/resources/scripts</directory>
+      <fileMode>0755</fileMode>
+      <excludes>
+        <exclude>managix</exclude>
+      </excludes>
+      <outputDirectory>.installer/scripts</outputDirectory>
+    </fileSet>
+    <fileSet>
+      <directory>src/main/resources/hadoop-0.20.2</directory>
+      <outputDirectory>.installer/hadoop-0.20.2</outputDirectory>
+      <fileMode>0755</fileMode>
+    </fileSet>
+    <fileSet>
+      <directory>target</directory>
+      <outputDirectory>lib</outputDirectory>
+      <includes>
+        <include>*.jar</include>
+      </includes>
+    </fileSet>
+    <fileSet>
+      <directory>../asterix-events/src/main/resources/events</directory>
+      <outputDirectory>.installer/eventrix/events</outputDirectory>
+      <fileMode>0755</fileMode>
+    </fileSet>
+    <fileSet>
+      <directory>../asterix-events/src/main/resources/scripts</directory>
+      <outputDirectory>.installer/eventrix/scripts</outputDirectory>
+    </fileSet>
+  </fileSets>
+  <dependencySets>
+    <dependencySet>
+      <includes>
+         <include>log4j:log4j</include>
+         <include>edu.uci.ics.asterix:asterix-events</include>
+         <include>org.apache.zookeeper:zookeeper</include>
+         <include>args4j:args4j</include>
+         <include>log4j:log4j</include>
+         <include>commons-io:commons-io</include>
+         <include>org.slf4j:slf4j-api</include>
+         <include>org.slf4j:slf4j-log4j12</include>
+       </includes>
+       <unpack>false</unpack>
+       <outputDirectory>lib</outputDirectory>
+    </dependencySet>
+    <dependencySet>
+      <includes>
+        <include>org.apache.hadoop:hadoop-core</include>
+        <include>commons-cli:commons-cli</include>
+        <include>commons-logging:commons-logging</include>
+      </includes>
+      <unpack>false</unpack>
+      <outputDirectory>.installer/hadoop-0.20.2/lib</outputDirectory>
+    </dependencySet>
+    <dependencySet>
+      <includes>
+        <include>org.apache.zookeeper:zookeeper</include>
+        <include>log4j:log4j</include>
+        <include>org.slf4j:slf4j-api</include>
+      </includes>
+      <unpack>false</unpack>
+      <outputDirectory>.installer/zookeeper/lib</outputDirectory>
+    </dependencySet>
+    <dependencySet>
+      <outputDirectory>asterix</outputDirectory>
+      <includes>
+        <include>asterix-server*</include>
+      </includes>
+      <useTransitiveDependencies>false</useTransitiveDependencies>
+    </dependencySet>
+    <dependencySet>
+      <outputDirectory>.installer/eventrix</outputDirectory>
+      <includes>
+        <include>asterix-events*</include>
+      </includes>
+      <unpack>false</unpack>
+      <useTransitiveDependencies>false</useTransitiveDependencies>
+    </dependencySet>
+  </dependencySets>
+</assembly>
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/AbstractCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/AbstractCommand.java
new file mode 100644
index 0000000..8ebdea5
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/AbstractCommand.java
@@ -0,0 +1,43 @@
+/*
+ * 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.asterix.installer.command;
+
+
+import org.apache.log4j.Logger;
+import org.kohsuke.args4j.CmdLineParser;
+
+public abstract class AbstractCommand implements ICommand {
+
+    protected static final Logger LOGGER = Logger.getLogger(AbstractCommand.class.getName());
+
+    protected CommandConfig config;
+    
+    protected String usageDescription;
+
+    public void execute(String[] args) throws Exception {
+        String[] cmdArgs = new String[args.length - 1];
+        System.arraycopy(args, 1, cmdArgs, 0, cmdArgs.length);
+        config = getCommandConfig();
+        CmdLineParser parser = new CmdLineParser(config);
+        parser.parseArgument(cmdArgs);
+        execCommand();
+    }
+
+    abstract protected void execCommand() throws Exception;
+
+    abstract protected String getUsageDescription();
+
+    abstract protected CommandConfig getCommandConfig();
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/AlterCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/AlterCommand.java
new file mode 100644
index 0000000..cbea918
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/AlterCommand.java
@@ -0,0 +1,68 @@
+/*
+ * 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.asterix.installer.command;
+
+import java.util.Date;
+import java.util.Properties;
+
+import org.kohsuke.args4j.Option;
+
+import edu.uci.ics.asterix.installer.driver.InstallerUtil;
+import edu.uci.ics.asterix.installer.model.AsterixInstance;
+import edu.uci.ics.asterix.installer.model.AsterixInstance.State;
+import edu.uci.ics.asterix.installer.service.ILookupService;
+import edu.uci.ics.asterix.installer.service.ServiceProvider;
+
+public class AlterCommand extends AbstractCommand {
+
+    @Override
+    protected void execCommand() throws Exception {
+        String instanceName = ((AlterConfig) config).name;
+        InstallerUtil.validateAsterixInstanceExists(instanceName, State.INACTIVE);
+        ILookupService lookupService = ServiceProvider.INSTANCE.getLookupService();
+        AsterixInstance instance = lookupService.getAsterixInstance(instanceName);
+
+        Properties asterixConfProp = InstallerUtil.getAsterixConfiguration(((AlterConfig) config).confPath);
+        instance.setConfiguration(asterixConfProp);
+        instance.setModifiedTimestamp(new Date());
+        lookupService.updateAsterixInstance(instance);
+        LOGGER.info("Configuration for Asterix instance: " + instanceName + " has been altered");
+    }
+
+    @Override
+    protected CommandConfig getCommandConfig() {
+        return new AlterConfig();
+    }
+
+    @Override
+    protected String getUsageDescription() {
+        // TODO Auto-generated method stub
+        return null;
+    }
+
+}
+
+class AlterConfig implements CommandConfig {
+
+    @Option(name = "-h", required = false, usage = "Help")
+    public boolean help = false;
+
+    @Option(name = "-n", required = false, usage = "Name of Asterix Instance")
+    public String name;
+
+    @Option(name = "-conf", required = false, usage = "Path to instance configuration")
+    public String confPath;
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/BackupCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/BackupCommand.java
new file mode 100644
index 0000000..58c309a
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/BackupCommand.java
@@ -0,0 +1,70 @@
+/*
+ * 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.asterix.installer.command;
+
+import java.util.Date;
+import java.util.List;
+
+import org.kohsuke.args4j.Option;
+
+import edu.uci.ics.asterix.event.schema.pattern.Patterns;
+import edu.uci.ics.asterix.installer.driver.InstallerUtil;
+import edu.uci.ics.asterix.installer.events.PatternCreator;
+import edu.uci.ics.asterix.installer.model.AsterixInstance;
+import edu.uci.ics.asterix.installer.model.AsterixInstance.State;
+import edu.uci.ics.asterix.installer.model.BackupInfo;
+import edu.uci.ics.asterix.installer.service.ServiceProvider;
+
+public class BackupCommand extends AbstractCommand {
+
+    @Override
+    protected void execCommand() throws Exception {
+        String asterixInstanceName = ((BackupConfig) config).name;
+        AsterixInstance instance = InstallerUtil.validateAsterixInstanceExists(asterixInstanceName, State.INACTIVE);
+        List<BackupInfo> backupInfo = instance.getBackupInfo();
+        PatternCreator pc = new PatternCreator();
+        Patterns patterns = pc.getBackUpAsterixPattern(instance, ((BackupConfig) config).localPath);
+        InstallerUtil.getEventrixClient(instance.getCluster()).submit(patterns);
+        int backupId = backupInfo.size();
+        BackupInfo binfo = new BackupInfo(backupId, new Date());
+        backupInfo.add(binfo);
+        LOGGER.info(asterixInstanceName + " backed up " + binfo);
+        ServiceProvider.INSTANCE.getLookupService().updateAsterixInstance(instance);
+    }
+
+    @Override
+    protected CommandConfig getCommandConfig() {
+        return new BackupConfig();
+    }
+
+    @Override
+    protected String getUsageDescription() {
+        return null;
+    }
+
+}
+
+class BackupConfig implements CommandConfig {
+
+    @Option(name = "-h", required = false, usage = "Help")
+    public boolean help = false;
+
+    @Option(name = "-n", required = true, usage = "Name of the Asterix instance")
+    public String name;
+
+    @Option(name = "-local", required = false, usage = "Path on the local file system for backup")
+    public String localPath;
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/CommandConfig.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/CommandConfig.java
new file mode 100644
index 0000000..c0dd480
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/CommandConfig.java
@@ -0,0 +1,19 @@
+/*
+ * 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.asterix.installer.command;
+
+public interface CommandConfig {
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/CommandHandler.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/CommandHandler.java
new file mode 100644
index 0000000..179412f
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/CommandHandler.java
@@ -0,0 +1,52 @@
+/*
+ * 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.asterix.installer.command;
+
+import edu.uci.ics.asterix.installer.command.ICommand.CommandType;
+
+public class CommandHandler {
+
+    public void processCommand(String args[]) throws Exception {
+        CommandType cmdType = CommandType.valueOf(args[0].toUpperCase());
+        ICommand cmd = null;
+        switch (cmdType) {
+            case CREATE:
+                cmd = new CreateCommand();
+                break;
+            case ALTER:
+                cmd = new AlterCommand();
+                break;
+            case DELETE:
+                cmd = new DeleteCommand();
+                break;
+            case DESCRIBE:
+                cmd = new DescribeCommand();
+                break;
+            case BACKUP:
+                cmd = new BackupCommand();
+                break;
+            case RESTORE:
+                cmd = new RestoreCommand();
+                break;
+            case START:
+                cmd = new StartCommand();
+                break;
+            case STOP:
+                cmd = new StopCommand();
+                break;
+        }
+        cmd.execute(args);
+    }
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/CreateCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/CreateCommand.java
new file mode 100644
index 0000000..48016a5
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/CreateCommand.java
@@ -0,0 +1,111 @@
+/*
+ * 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.asterix.installer.command;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.Unmarshaller;
+
+import org.kohsuke.args4j.Option;
+
+import edu.uci.ics.asterix.event.schema.cluster.Cluster;
+import edu.uci.ics.asterix.event.schema.cluster.Env;
+import edu.uci.ics.asterix.event.schema.cluster.Property;
+import edu.uci.ics.asterix.event.schema.pattern.Patterns;
+import edu.uci.ics.asterix.installer.driver.InstallerDriver;
+import edu.uci.ics.asterix.installer.driver.InstallerUtil;
+import edu.uci.ics.asterix.installer.error.VerificationUtil;
+import edu.uci.ics.asterix.installer.events.PatternCreator;
+import edu.uci.ics.asterix.installer.model.AsterixInstance;
+import edu.uci.ics.asterix.installer.model.AsterixRuntimeState;
+import edu.uci.ics.asterix.installer.service.ServiceProvider;
+
+public class CreateCommand extends AbstractCommand {
+
+    private String asterixInstanceName;
+    private Cluster cluster;
+
+    @Override
+    protected void execCommand() throws Exception {
+        asterixInstanceName = ((CreateConfig) config).name;
+        InstallerUtil.validateAsterixInstanceNotExists(asterixInstanceName);
+        CreateConfig createConfig = (CreateConfig) config;
+        JAXBContext ctx = JAXBContext.newInstance(Cluster.class);
+        Unmarshaller unmarshaller = ctx.createUnmarshaller();
+        cluster = (Cluster) unmarshaller.unmarshal(new File(createConfig.clusterPath));
+        AsterixInstance asterixInstance = InstallerUtil.createAsterixInstance(asterixInstanceName, cluster,
+                ((CreateConfig) config).asterixConf);
+        InstallerUtil.evaluateConflictWithOtherInstances(asterixInstance);
+        InstallerUtil.createAsterixZip(asterixInstance, true);
+        List<Property> clusterProperties = new ArrayList<Property>();
+        clusterProperties.add(new Property("ASTERIX_HOME", cluster.getWorkingDir().getDir() + File.separator
+                + "asterix"));
+        clusterProperties.add(new Property("JAVA_OPTS", "-Xmx" + cluster.getRam()));
+        clusterProperties.add(new Property("CLUSTER_NET_IP", cluster.getMasterNode().getClusterIp()));
+        clusterProperties.add(new Property("CLIENT_NET_IP", cluster.getMasterNode().getIp()));
+        clusterProperties.add(new Property("LOG_DIR", cluster.getLogdir()));
+        clusterProperties.add(new Property("JAVA_HOME", cluster.getJavaHome()));
+        cluster.setEnv(new Env(clusterProperties));
+
+        PatternCreator pc = new PatternCreator();
+        Patterns patterns = pc.getStartAsterixPattern(asterixInstanceName, cluster);
+        InstallerUtil.getEventrixClient(cluster).submit(patterns);
+
+        AsterixRuntimeState runtimeState = VerificationUtil.getAsterixRuntimeState(asterixInstance);
+        VerificationUtil.updateInstanceWithRuntimeDescription(asterixInstance, runtimeState, true);
+        ServiceProvider.INSTANCE.getLookupService().writeAsterixInstance(asterixInstance);
+        InstallerUtil.deleteDirectory(InstallerDriver.getManagixHome() + File.separator + InstallerDriver.ASTERIX_DIR
+                + File.separator + asterixInstanceName);
+        LOGGER.info(asterixInstance.getDescription(false));
+
+    }
+
+    @Override
+    protected CommandConfig getCommandConfig() {
+        return new CreateConfig();
+    }
+
+    public Cluster getCluster() {
+        return cluster;
+    }
+
+    public String getAsterixInstanceName() {
+        return asterixInstanceName;
+    }
+
+    @Override
+    protected String getUsageDescription() {
+        return null;
+    }
+}
+
+class CreateConfig implements CommandConfig {
+
+    @Option(name = "-h", required = false, usage = "Help")
+    public boolean help = false;
+
+    @Option(name = "-n", required = true, usage = "Name of Asterix Instance")
+    public String name;
+
+    @Option(name = "-c", required = true, usage = "Path to cluster configuration")
+    public String clusterPath;
+
+    @Option(name = "-a", required = true, usage = "Path to cluster configuration")
+    public String asterixConf;
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/DeleteCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/DeleteCommand.java
new file mode 100644
index 0000000..dc4d53e
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/DeleteCommand.java
@@ -0,0 +1,60 @@
+/*
+ * 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.asterix.installer.command;
+
+import org.kohsuke.args4j.Option;
+
+import edu.uci.ics.asterix.event.schema.pattern.Patterns;
+import edu.uci.ics.asterix.installer.driver.InstallerUtil;
+import edu.uci.ics.asterix.installer.events.PatternCreator;
+import edu.uci.ics.asterix.installer.model.AsterixInstance;
+import edu.uci.ics.asterix.installer.model.AsterixInstance.State;
+import edu.uci.ics.asterix.installer.service.ServiceProvider;
+
+public class DeleteCommand extends AbstractCommand {
+
+    @Override
+    protected void execCommand() throws Exception {
+        String asterixInstanceName = ((DeleteConfig) config).name;
+        AsterixInstance instance = InstallerUtil.validateAsterixInstanceExists(asterixInstanceName, State.INACTIVE);
+        PatternCreator pc = new PatternCreator();
+        Patterns patterns = pc.createDeleteInstancePattern(instance);
+        InstallerUtil.getEventrixClient(instance.getCluster()).submit(patterns);
+        ServiceProvider.INSTANCE.getLookupService().removeAsterixInstance(asterixInstanceName);
+        LOGGER.info(" Asterix instance: " + asterixInstanceName + " deleted");
+    }
+
+    @Override
+    protected CommandConfig getCommandConfig() {
+        return new DeleteConfig();
+    }
+
+    @Override
+    protected String getUsageDescription() {
+        // TODO Auto-generated method stub
+        return null;
+    }
+
+}
+
+class DeleteConfig implements CommandConfig {
+
+    @Option(name = "-h", required = false, usage = "Help")
+    public boolean help = false;
+
+    @Option(name = "-n", required = false, usage = "Name of Asterix Instance")
+    public String name;
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/DescribeCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/DescribeCommand.java
new file mode 100644
index 0000000..977acaf
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/DescribeCommand.java
@@ -0,0 +1,92 @@
+/*
+ * 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.asterix.installer.command;
+
+import java.util.List;
+
+import org.kohsuke.args4j.Option;
+
+import edu.uci.ics.asterix.installer.driver.InstallerUtil;
+import edu.uci.ics.asterix.installer.error.InstallerException;
+import edu.uci.ics.asterix.installer.error.VerificationUtil;
+import edu.uci.ics.asterix.installer.model.AsterixInstance;
+import edu.uci.ics.asterix.installer.model.AsterixInstance.State;
+import edu.uci.ics.asterix.installer.model.AsterixRuntimeState;
+import edu.uci.ics.asterix.installer.service.ServiceProvider;
+
+public class DescribeCommand extends AbstractCommand {
+
+    @Override
+    protected void execCommand() throws Exception {
+        String asterixInstanceName = ((DescribeConfig) config).name;
+        boolean adminView = ((DescribeConfig) config).admin;
+        if (asterixInstanceName != null) {
+            InstallerUtil.validateAsterixInstanceExists(asterixInstanceName, State.INACTIVE, State.ACTIVE,
+                    State.UNUSABLE);
+            AsterixInstance instance = ServiceProvider.INSTANCE.getLookupService().getAsterixInstance(
+                    asterixInstanceName);
+            if (instance != null) {
+                AsterixRuntimeState state = VerificationUtil.getAsterixRuntimeState(instance);
+                boolean expectedRunning = instance.getState().equals(State.UNUSABLE) ? instance.getPreviousState()
+                        .equals(State.ACTIVE) : !instance.getState().equals(State.INACTIVE);
+                VerificationUtil.updateInstanceWithRuntimeDescription(instance, state, expectedRunning);
+                ServiceProvider.INSTANCE.getLookupService().updateAsterixInstance(instance);
+                LOGGER.info(instance.getDescription(adminView));
+            } else {
+                throw new InstallerException("Asterix instance by the name " + asterixInstanceName + " does not exist.");
+            }
+        } else {
+            List<AsterixInstance> asterixInstances = ServiceProvider.INSTANCE.getLookupService().getAsterixInstances();
+            if (asterixInstances.size() > 0) {
+                for (AsterixInstance instance : asterixInstances) {
+                    AsterixRuntimeState state = VerificationUtil.getAsterixRuntimeState(instance);
+                    boolean expectedRunning = instance.getState().equals(State.UNUSABLE) ? instance.getPreviousState()
+                            .equals(State.ACTIVE) : !instance.getState().equals(State.INACTIVE);
+                    VerificationUtil.updateInstanceWithRuntimeDescription(instance, state, expectedRunning);
+                    ServiceProvider.INSTANCE.getLookupService().updateAsterixInstance(instance);
+                    LOGGER.info(instance.getDescription(adminView));
+                }
+            } else {
+                LOGGER.info("No Asterix instances found!");
+            }
+
+        }
+    }
+
+    @Override
+    protected CommandConfig getCommandConfig() {
+        return new DescribeConfig();
+    }
+
+    @Override
+    protected String getUsageDescription() {
+        // TODO Auto-generated method stub
+        return null;
+    }
+
+}
+
+class DescribeConfig implements CommandConfig {
+
+    @Option(name = "-h", required = false, usage = "Help")
+    public boolean help = false;
+
+    @Option(name = "-n", required = false, usage = "Name of Asterix Instance")
+    public String name;
+
+    @Option(name = "-admin", required = false, usage = "Detailed description")
+    public boolean admin;
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/ICommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/ICommand.java
new file mode 100644
index 0000000..2822337
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/ICommand.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.asterix.installer.command;
+
+public interface ICommand {
+
+	public enum CommandType {
+		CREATE, DELETE, START, STOP, BACKUP, RESTORE, DESCRIBE, ALTER
+	}
+
+	public void execute(String args[]) throws Exception;
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/RestoreCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/RestoreCommand.java
new file mode 100644
index 0000000..777d179
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/RestoreCommand.java
@@ -0,0 +1,65 @@
+/*
+ * 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.asterix.installer.command;
+
+import org.kohsuke.args4j.Option;
+
+import edu.uci.ics.asterix.event.schema.pattern.Patterns;
+import edu.uci.ics.asterix.installer.driver.InstallerUtil;
+import edu.uci.ics.asterix.installer.events.PatternCreator;
+import edu.uci.ics.asterix.installer.model.AsterixInstance;
+import edu.uci.ics.asterix.installer.model.AsterixInstance.State;
+
+public class RestoreCommand extends AbstractCommand {
+
+    @Override
+    protected void execCommand() throws Exception {
+        String asterixInstanceName = ((RestoreConfig) config).name;
+        AsterixInstance instance = InstallerUtil.validateAsterixInstanceExists(asterixInstanceName, State.INACTIVE);
+        int backupId = ((RestoreConfig) config).backupId;
+        if (instance.getBackupInfo().size() <= backupId || backupId < 0) {
+            throw new IllegalStateException("Invalid backup id");
+        }
+        PatternCreator pc = new PatternCreator();
+        Patterns patterns = pc.getRestoreAsterixPattern(instance, backupId);
+        InstallerUtil.getEventrixClient(instance.getCluster()).submit(patterns);
+        LOGGER.info("Asterix instance: " + asterixInstanceName + " has been restored from backup");
+    }
+
+    @Override
+    protected CommandConfig getCommandConfig() {
+        return new RestoreConfig();
+    }
+
+    @Override
+    protected String getUsageDescription() {
+        // TODO Auto-generated method stub
+        return null;
+    }
+
+}
+
+class RestoreConfig implements CommandConfig {
+
+    @Option(name = "-h", required = false, usage = "Help")
+    public boolean help = false;
+
+    @Option(name = "-n", required = true, usage = "Name of the Asterix instance")
+    public String name;
+
+    @Option(name = "-b", required = true, usage = "Id corresponding to the backed up version")
+    public int backupId;
+
+}
\ No newline at end of file
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/StartCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/StartCommand.java
new file mode 100644
index 0000000..99dfaa5
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/StartCommand.java
@@ -0,0 +1,73 @@
+/*
+ * 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.asterix.installer.command;
+
+import java.io.File;
+
+import org.kohsuke.args4j.Option;
+
+import edu.uci.ics.asterix.event.schema.pattern.Patterns;
+import edu.uci.ics.asterix.installer.driver.InstallerDriver;
+import edu.uci.ics.asterix.installer.driver.InstallerUtil;
+import edu.uci.ics.asterix.installer.error.VerificationUtil;
+import edu.uci.ics.asterix.installer.events.PatternCreator;
+import edu.uci.ics.asterix.installer.model.AsterixInstance;
+import edu.uci.ics.asterix.installer.model.AsterixInstance.State;
+import edu.uci.ics.asterix.installer.model.AsterixRuntimeState;
+import edu.uci.ics.asterix.installer.service.ServiceProvider;
+
+public class StartCommand extends AbstractCommand {
+
+    @Override
+    protected void execCommand() throws Exception {
+        String asterixInstanceName = ((StartConfig) config).name;
+        AsterixInstance instance = InstallerUtil.validateAsterixInstanceExists(asterixInstanceName, State.INACTIVE);
+        InstallerUtil.createAsterixZip(instance, false);
+        PatternCreator pc = new PatternCreator();
+        Patterns patterns = pc.getStartAsterixPattern(asterixInstanceName, instance.getCluster());
+        InstallerUtil.getEventrixClient(instance.getCluster()).submit(patterns);
+        InstallerUtil.deleteDirectory(InstallerDriver.getManagixHome() + File.separator + InstallerDriver.ASTERIX_DIR
+                + File.separator + asterixInstanceName);
+        AsterixRuntimeState runtimeState = VerificationUtil.getAsterixRuntimeState(instance);
+        VerificationUtil.updateInstanceWithRuntimeDescription(instance, runtimeState, true);
+        LOGGER.info(instance.getDescription(false));
+        ServiceProvider.INSTANCE.getLookupService().updateAsterixInstance(instance);
+    }
+
+    @Override
+    protected CommandConfig getCommandConfig() {
+        return new StartConfig();
+    }
+
+    @Override
+    protected String getUsageDescription() {
+        // TODO Auto-generated method stub
+        return null;
+    }
+
+}
+
+class StartConfig implements CommandConfig {
+
+    @Option(name = "-h", required = false, usage = "Help")
+    public boolean help = false;
+
+    @Option(name = "-n", required = false, usage = "Name of Asterix Instance")
+    public String name;
+
+    @Option(name = "-conf", required = false, usage = "Path to instance configuration")
+    public String confPath;
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/StopCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/StopCommand.java
new file mode 100644
index 0000000..81b147a
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/StopCommand.java
@@ -0,0 +1,85 @@
+/*
+ * 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.asterix.installer.command;
+
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+
+import org.kohsuke.args4j.Option;
+
+import edu.uci.ics.asterix.event.management.EventrixClient;
+import edu.uci.ics.asterix.event.schema.cluster.Node;
+import edu.uci.ics.asterix.event.schema.pattern.Pattern;
+import edu.uci.ics.asterix.event.schema.pattern.Patterns;
+import edu.uci.ics.asterix.installer.driver.InstallerUtil;
+import edu.uci.ics.asterix.installer.events.PatternCreator;
+import edu.uci.ics.asterix.installer.model.AsterixInstance;
+import edu.uci.ics.asterix.installer.model.AsterixInstance.State;
+import edu.uci.ics.asterix.installer.service.ServiceProvider;
+
+public class StopCommand extends AbstractCommand {
+
+    @Override
+    protected void execCommand() throws Exception {
+        String asterixInstanceName = ((StopConfig) config).name;
+        AsterixInstance asterixInstance = InstallerUtil.validateAsterixInstanceExists(asterixInstanceName,
+                State.ACTIVE, State.UNUSABLE);
+        PatternCreator pc = new PatternCreator();
+        List<Pattern> patternsToExecute = new ArrayList<Pattern>();
+        patternsToExecute.add(pc.createCCStopPattern(asterixInstance.getCluster().getMasterNode().getId()));
+
+        for (Node node : asterixInstance.getCluster().getNode()) {
+            patternsToExecute.add(pc.createNCStopPattern(node.getId(), asterixInstanceName + "_" + node.getId()));
+        }
+        EventrixClient client = InstallerUtil.getEventrixClient(asterixInstance.getCluster());
+        try {
+            client.submit(new Patterns(patternsToExecute));
+        } catch (Exception e) {
+            // processes are already dead
+            LOGGER.debug("Attempt to kill non-existing processess");
+        }
+        asterixInstance.setState(State.INACTIVE);
+        asterixInstance.setStateChangeTimestamp(new Date());
+        ServiceProvider.INSTANCE.getLookupService().updateAsterixInstance(asterixInstance);
+        LOGGER.info("Stopped Asterix instance: " + asterixInstanceName);
+    }
+
+    @Override
+    protected CommandConfig getCommandConfig() {
+        return new StopConfig();
+    }
+
+    public String getAsterixInstanceName() {
+        return ((StopConfig) config).name;
+    }
+
+    @Override
+    protected String getUsageDescription() {
+        // TODO Auto-generated method stub
+        return null;
+    }
+
+}
+
+class StopConfig implements CommandConfig {
+
+    @Option(name = "-h", required = false, usage = "Help")
+    public boolean help = false;
+
+    @Option(name = "-n", required = true, usage = "Name of Asterix Instance")
+    public String name;
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/driver/InstallerDriver.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/driver/InstallerDriver.java
new file mode 100644
index 0000000..f435b8d
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/driver/InstallerDriver.java
@@ -0,0 +1,130 @@
+/*
+ * 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.asterix.installer.driver;
+
+import java.io.File;
+import java.io.FileFilter;
+
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.Unmarshaller;
+
+import org.apache.log4j.Level;
+import org.apache.log4j.Logger;
+
+import edu.uci.ics.asterix.installer.command.CommandHandler;
+import edu.uci.ics.asterix.installer.schema.conf.Configuration;
+import edu.uci.ics.asterix.installer.service.ILookupService;
+import edu.uci.ics.asterix.installer.service.ServiceProvider;
+
+public class InstallerDriver {
+
+    public static final String MANAGIX_INTERNAL_DIR = ".installer";
+    public static final String MANAGIX_EVENT_DIR = MANAGIX_INTERNAL_DIR + File.separator + "eventrix";
+    public static final String MANAGIX_EVENT_SCRIPTS_DIR = MANAGIX_INTERNAL_DIR + File.separator + "eventrix"
+            + File.separator + "scripts";
+    public static final String ASTERIX_DIR = "asterix";
+    public static final String EVENTS_DIR = "events";
+
+    private static final Logger LOGGER = Logger.getLogger(InstallerDriver.class.getName());
+    private static final String ENV_MANAGIX_HOME = "MANAGIX_HOME";
+    private static final String MANAGIX_CONF_XML = "conf" + File.separator + "installer-conf.xml";
+
+    private static Configuration conf;
+    private static String managixHome;
+    private static String asterixZip;
+
+    public static String getAsterixZip() {
+        return asterixZip;
+    }
+
+    public static Configuration getConfiguration() {
+        return conf;
+    }
+
+    private static void initConfig() throws Exception {
+        managixHome = System.getenv(ENV_MANAGIX_HOME);
+        File configFile = new File(managixHome + File.separator + MANAGIX_CONF_XML);
+        JAXBContext configCtx = JAXBContext.newInstance(Configuration.class);
+        Unmarshaller unmarshaller = configCtx.createUnmarshaller();
+        conf = (Configuration) unmarshaller.unmarshal(configFile);
+        asterixZip = initBinary("asterix-server");
+
+        ILookupService lookupService = ServiceProvider.INSTANCE.getLookupService();
+        if (!lookupService.isRunning(conf)) {
+            lookupService.startService(conf);
+        }
+    }
+
+    private static String initBinary(final String fileNamePattern) {
+        String asterixDir = InstallerDriver.getAsterixDir();
+        File file = new File(asterixDir);
+        File[] zipFiles = file.listFiles(new FileFilter() {
+            public boolean accept(File arg0) {
+                return arg0.getAbsolutePath().contains(fileNamePattern) && arg0.isFile();
+            }
+        });
+        if (zipFiles.length == 0) {
+            String msg = " Binary not found at " + asterixDir;
+            LOGGER.log(Level.FATAL, msg);
+            throw new IllegalStateException(msg);
+        }
+        if (zipFiles.length > 1) {
+            String msg = " Multiple binaries found at " + asterixDir;
+            LOGGER.log(Level.FATAL, msg);
+            throw new IllegalStateException(msg);
+        }
+
+        return zipFiles[0].getAbsolutePath();
+    }
+
+    public static String getManagixHome() {
+        return managixHome;
+    }
+
+    public static String getAsterixDir() {
+        return managixHome + File.separator + ASTERIX_DIR;
+    }
+
+    public static void main(String args[]) {
+        try {
+            if (args.length != 0) {
+                initConfig();
+                CommandHandler cmdHandler = new CommandHandler();
+                cmdHandler.processCommand(args);
+            } else {
+                printUsage();
+            }
+        } catch (IllegalArgumentException iae) {
+            LOGGER.error("Unknown command");
+            printUsage();
+        } catch (Exception e) {
+            LOGGER.error(e.getMessage());
+        }
+    }
+
+    private static void printUsage() {
+        StringBuffer buffer = new StringBuffer("managix <command> <args>" + "\n");
+        buffer.append("Commands" + "\n");
+        buffer.append("create   " + ":" + " Creates a new asterix instance" + "\n");
+        buffer.append("delete   " + ":" + " Deletes an asterix instance" + "\n");
+        buffer.append("start    " + ":" + " Starts an  asterix instance" + "\n");
+        buffer.append("stop     " + ":" + " Stops an asterix instance that is in ACTIVE state" + "\n");
+        buffer.append("backup   " + ":" + " Creates a back up for an existing asterix instance" + "\n");
+        buffer.append("restore  " + ":" + " Restores an asterix instance" + "\n");
+        buffer.append("alter    " + ":" + " Alters the configuration for an existing asterix instance" + "\n");
+        buffer.append("describe " + ":" + " Describes an existing asterix instance" + "\n");
+        LOGGER.info(buffer.toString());
+    }
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/driver/InstallerUtil.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/driver/InstallerUtil.java
new file mode 100644
index 0000000..cd3ebdb
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/driver/InstallerUtil.java
@@ -0,0 +1,333 @@
+/*
+ * 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.asterix.installer.driver;
+
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
+import java.io.File;
+import java.io.FileFilter;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.StringWriter;
+import java.util.ArrayList;
+import java.util.Enumeration;
+import java.util.List;
+import java.util.Properties;
+import java.util.Random;
+import java.util.jar.JarEntry;
+import java.util.jar.JarFile;
+import java.util.jar.JarOutputStream;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipInputStream;
+import java.util.zip.ZipOutputStream;
+
+import org.apache.commons.io.IOUtils;
+
+import edu.uci.ics.asterix.event.driver.EventDriver;
+import edu.uci.ics.asterix.event.management.EventrixClient;
+import edu.uci.ics.asterix.event.schema.cluster.Cluster;
+import edu.uci.ics.asterix.event.schema.cluster.Node;
+import edu.uci.ics.asterix.installer.error.InstallerException;
+import edu.uci.ics.asterix.installer.error.OutputHandler;
+import edu.uci.ics.asterix.installer.model.AsterixInstance;
+import edu.uci.ics.asterix.installer.model.AsterixInstance.State;
+import edu.uci.ics.asterix.installer.service.ServiceProvider;
+
+public class InstallerUtil {
+
+    public static AsterixInstance createAsterixInstance(String asterixInstanceName, Cluster cluster, String asterixConf)
+            throws FileNotFoundException, IOException {
+        Properties asterixConfProp = getAsterixConfiguration(asterixConf);
+        Node metadataNode = getMetadataNode(cluster);
+        String asterixZipName = InstallerDriver.getAsterixZip().substring(
+                InstallerDriver.getAsterixZip().lastIndexOf(File.separator) + 1);
+        String asterixVersion = asterixZipName.substring("asterix-server-".length(),
+                asterixZipName.indexOf("-binary-assembly"));
+        AsterixInstance instance = new AsterixInstance(asterixInstanceName, cluster, asterixConfProp,
+                metadataNode.getId(), asterixVersion);
+        return instance;
+    }
+
+    public static void createAsterixZip(AsterixInstance asterixInstance, boolean newDeployment) throws IOException {
+        writeAsterixConfigurationFile(asterixInstance, newDeployment);
+        String asterixInstanceDir = InstallerDriver.getAsterixDir() + File.separator + asterixInstance.getName();
+        unzip(InstallerDriver.getAsterixZip(), asterixInstanceDir);
+        File sourceJar = new File(asterixInstanceDir + File.separator + "lib" + File.separator + "asterix-app-"
+                + asterixInstance.getAsterixVersion() + ".jar");
+        String origFile = "test.properties";
+        File replacementFile = new File(asterixInstanceDir + File.separator + "test.properties");
+        replaceInJar(sourceJar, origFile, replacementFile);
+        new File(asterixInstanceDir + File.separator + "test.properties").delete();
+        String asterixZipName = InstallerDriver.getAsterixZip().substring(
+                InstallerDriver.getAsterixZip().lastIndexOf(File.separator) + 1);
+        zipDir(new File(asterixInstanceDir), new File(asterixInstanceDir + File.separator + asterixZipName));
+
+    }
+
+    private static Node getMetadataNode(Cluster cluster) {
+        Random random = new Random();
+        int nNodes = cluster.getNode().size();
+        return cluster.getNode().get(random.nextInt(nNodes));
+    }
+
+    private static void writeAsterixConfigurationFile(AsterixInstance asterixInstance, boolean newData)
+            throws IOException {
+        String asterixInstanceName = asterixInstance.getName();
+        Cluster cluster = asterixInstance.getCluster();
+        String metadataNodeId = asterixInstance.getMetadataNodeId();
+
+        StringBuffer conf = new StringBuffer();
+        conf.append("MetadataNode=" + asterixInstanceName + "_" + metadataNodeId + "\n");
+        conf.append("NewUniverse=" + newData + "\n");
+
+        for (Node node : cluster.getNode()) {
+            StringBuffer nodeDataStore = new StringBuffer();
+            if (node.getStore() != null) {
+                String[] nodeStores = node.getStore().split(",");
+                for (String ns : nodeStores) {
+                    nodeDataStore.append(ns + File.separator + asterixInstanceName + File.separator);
+                    nodeDataStore.append(",");
+                }
+                nodeDataStore.deleteCharAt(nodeDataStore.length() - 1);
+            } else {
+                if (cluster.getStore() != null) {
+                    String[] nodeStores = cluster.getStore().split(",");
+                    for (String ns : nodeStores) {
+                        nodeDataStore.append(ns + File.separator + node.getId() + File.separator + asterixInstanceName
+                                + File.separator);
+                        nodeDataStore.append(",");
+                    }
+                    nodeDataStore.deleteCharAt(nodeDataStore.length() - 1);
+                }
+            }
+            if (nodeDataStore.length() == 0) {
+                throw new IllegalStateException(" Store not defined for node " + node.getId());
+            }
+            conf.append(asterixInstanceName + "_" + node.getId() + ".stores" + "=" + nodeDataStore + "\n");
+
+        }
+        Properties asterixConfProp = asterixInstance.getConfiguration();
+        String outputDir = asterixConfProp.getProperty("output_dir");
+        conf.append("OutputDir=" + outputDir);
+        File asterixConfDir = new File(InstallerDriver.getAsterixDir() + File.separator + asterixInstanceName);
+        asterixConfDir.mkdirs();
+        dumpToFile(InstallerDriver.getAsterixDir() + File.separator + asterixInstanceName + File.separator
+                + "test.properties", conf.toString());
+    }
+
+    public static Properties getAsterixConfiguration(String asterixConf) throws FileNotFoundException, IOException {
+        Properties prop = new Properties();
+        prop.load(new FileInputStream(asterixConf));
+        return prop;
+    }
+
+    public static void unzip(String sourceFile, String destDir) throws IOException {
+        BufferedOutputStream dest = null;
+        FileInputStream fis = new FileInputStream(sourceFile);
+        ZipInputStream zis = new ZipInputStream(new BufferedInputStream(fis));
+        ZipEntry entry = null;
+
+        int BUFFER_SIZE = 4096;
+        while ((entry = zis.getNextEntry()) != null) {
+            String dst = destDir + File.separator + entry.getName();
+            if (entry.isDirectory()) {
+                createDir(destDir, entry);
+                continue;
+            }
+            int count;
+            byte data[] = new byte[BUFFER_SIZE];
+
+            //write the file to the disk
+            FileOutputStream fos = new FileOutputStream(dst);
+            dest = new BufferedOutputStream(fos, BUFFER_SIZE);
+            while ((count = zis.read(data, 0, BUFFER_SIZE)) != -1) {
+                dest.write(data, 0, count);
+            }
+            //close the output streams
+            dest.flush();
+            dest.close();
+        }
+
+        zis.close();
+    }
+
+    public static void zipDir(File sourceDir, File destFile) throws IOException {
+        FileOutputStream fos = new FileOutputStream(destFile);
+        ZipOutputStream zos = new ZipOutputStream(fos);
+        zipDir(sourceDir, destFile, zos);
+        zos.close();
+    }
+
+    private static void zipDir(File sourceDir, final File destFile, ZipOutputStream zos) throws IOException {
+        File[] dirList = sourceDir.listFiles(new FileFilter() {
+            public boolean accept(File f) {
+                return !f.getName().endsWith(destFile.getName());
+            }
+        });
+        for (int i = 0; i < dirList.length; i++) {
+            File f = dirList[i];
+            if (f.isDirectory()) {
+                zipDir(f, destFile, zos);
+            } else {
+                int bytesIn = 0;
+                byte[] readBuffer = new byte[2156];
+                FileInputStream fis = new FileInputStream(f);
+                ZipEntry entry = new ZipEntry(sourceDir.getName() + File.separator + f.getName());
+                zos.putNextEntry(entry);
+                while ((bytesIn = fis.read(readBuffer)) != -1) {
+                    zos.write(readBuffer, 0, bytesIn);
+                }
+                fis.close();
+            }
+        }
+    }
+
+    private static void replaceInJar(File sourceJar, String origFile, File replacementFile) throws IOException {
+        File destJar = new File(sourceJar.getAbsolutePath() + ".modified");
+        InputStream jarIs = null;
+        FileInputStream fis = new FileInputStream(replacementFile);
+        JarFile sourceJarFile = new JarFile(sourceJar);
+        Enumeration<JarEntry> entries = sourceJarFile.entries();
+        JarOutputStream jos = new JarOutputStream(new FileOutputStream(destJar));
+        byte[] buffer = new byte[2048];
+        int read;
+        while (entries.hasMoreElements()) {
+            JarEntry entry = (JarEntry) entries.nextElement();
+            String name = entry.getName();
+            if (name.equals(origFile)) {
+                continue;
+            }
+            jarIs = sourceJarFile.getInputStream(entry);
+            jos.putNextEntry(entry);
+            while ((read = jarIs.read(buffer)) != -1) {
+                jos.write(buffer, 0, read);
+            }
+        }
+        JarEntry entry = new JarEntry(origFile);
+        jos.putNextEntry(entry);
+        while ((read = fis.read(buffer)) != -1) {
+            jos.write(buffer, 0, read);
+        }
+        fis.close();
+        jos.close();
+        jarIs.close();
+        sourceJar.delete();
+        destJar.renameTo(sourceJar);
+        sourceJar.setExecutable(true);
+    }
+
+    public static void dumpToFile(String dest, String content) throws IOException {
+        FileWriter writer = new FileWriter(dest);
+        writer.write(content);
+        writer.close();
+    }
+
+    private static void createDir(String destDirectory, ZipEntry entry) {
+        String name = entry.getName();
+        int index = name.lastIndexOf(File.separator);
+        String dirSequence = name.substring(0, index);
+        File newDirs = new File(destDirectory + File.separator + dirSequence);
+        newDirs.mkdirs();
+    }
+
+    public static AsterixInstance validateAsterixInstanceExists(String name, State... permissibleStates)
+            throws Exception {
+        AsterixInstance instance = ServiceProvider.INSTANCE.getLookupService().getAsterixInstance(name);
+        if (instance == null) {
+            throw new InstallerException(" Asterix instance by name " + name + " does not exist.");
+        }
+        boolean valid = false;
+        for (State state : permissibleStates) {
+            if (state.equals(instance.getState())) {
+                valid = true;
+                break;
+            }
+        }
+        if (!valid) {
+            throw new InstallerException(" Asterix instance by the name " + name + " is in " + instance.getState()
+                    + " state ");
+        }
+        return instance;
+    }
+
+    public static void validateAsterixInstanceNotExists(String name) throws Exception {
+        AsterixInstance instance = ServiceProvider.INSTANCE.getLookupService().getAsterixInstance(name);
+        if (instance != null) {
+            throw new InstallerException(" Asterix instance by name " + name + " already exists.");
+        }
+    }
+
+    public static void evaluateConflictWithOtherInstances(AsterixInstance instance) throws Exception {
+        List<AsterixInstance> existingInstances = ServiceProvider.INSTANCE.getLookupService().getAsterixInstances();
+        List<String> usedIps = new ArrayList<String>();
+        String masterIp = instance.getCluster().getMasterNode().getIp();
+        for (Node node : instance.getCluster().getNode()) {
+            usedIps.add(node.getIp());
+        }
+        usedIps.add(instance.getCluster().getMasterNode().getIp());
+        boolean conflictFound = false;
+        AsterixInstance conflictingInstance = null;
+        for (AsterixInstance existing : existingInstances) {
+            conflictFound = existing.getCluster().getMasterNode().getIp().equals(masterIp);
+            if (conflictFound) {
+                conflictingInstance = existing;
+                break;
+            }
+            for (Node n : existing.getCluster().getNode()) {
+                if (usedIps.contains(n.getIp())) {
+                    conflictFound = true;
+                    conflictingInstance = existing;
+                    break;
+                }
+            }
+        }
+        if (conflictFound) {
+            throw new Exception("Cluster definition conflicts with an existing instance of Asterix: "
+                    + conflictingInstance.getName());
+        }
+    }
+
+    public static void deleteDirectory(String path) throws IOException {
+        Runtime.getRuntime().exec("rm -rf " + path);
+    }
+
+    public static String executeLocalScript(String path, List<String> args) throws Exception {
+        List<String> pargs = new ArrayList<String>();
+        pargs.add("/bin/bash");
+        pargs.add(path);
+        if (args != null) {
+            pargs.addAll(args);
+        }
+        ProcessBuilder pb = new ProcessBuilder(pargs);
+        pb.environment().putAll(EventDriver.getEnvironment());
+        pb.environment().put("IP_LOCATION", EventDriver.CLIENT_NODE.getIp());
+        Process p = pb.start();
+        BufferedInputStream bis = new BufferedInputStream(p.getInputStream());
+        StringWriter writer = new StringWriter();
+        IOUtils.copy(bis, writer, "UTF-8");
+        return writer.toString();
+    }
+
+    public static EventrixClient getEventrixClient(Cluster cluster) throws Exception {
+        return new EventrixClient(
+                InstallerDriver.getManagixHome() + File.separator + InstallerDriver.MANAGIX_EVENT_DIR, cluster, false,
+                OutputHandler.INSTANCE);
+    }
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/error/InstallerException.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/error/InstallerException.java
new file mode 100644
index 0000000..89dedb6
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/error/InstallerException.java
@@ -0,0 +1,25 @@
+/*
+ * 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.asterix.installer.error;
+
+public class InstallerException extends Exception {
+
+    private static final long serialVersionUID = 1L;
+
+    public InstallerException(String message) {
+        super(message);
+    }
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/error/OutputHandler.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/error/OutputHandler.java
new file mode 100644
index 0000000..c5ad2a4
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/error/OutputHandler.java
@@ -0,0 +1,92 @@
+/*
+ * 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.asterix.installer.error;
+
+import edu.uci.ics.asterix.event.management.IOutputHandler;
+import edu.uci.ics.asterix.event.management.OutputAnalysis;
+import edu.uci.ics.asterix.event.schema.pattern.Event;
+import edu.uci.ics.asterix.installer.model.EventList.EventType;
+
+public class OutputHandler implements IOutputHandler {
+
+    public static IOutputHandler INSTANCE = new OutputHandler();
+
+    private OutputHandler() {
+
+    }
+
+    public OutputAnalysis reportEventOutput(Event event, String output) {
+
+        EventType eventType = EventType.valueOf(event.getType().toUpperCase());
+        boolean ignore = true;
+        String trimmedOutput = output.trim();
+        StringBuffer errorMessage = new StringBuffer();
+        switch (eventType) {
+            case FILE_TRANSFER:
+                if (trimmedOutput.length() > 0) {
+                    if (!output.contains("Permission denied") || output.contains("does not exist")
+                            || output.contains("File exist")) {
+                        ignore = true;
+                    } else {
+                        ignore = false;
+                    }
+                }
+                break;
+
+            case BACKUP:
+                if (trimmedOutput.length() > 0) {
+                    if (trimmedOutput.contains("AccessControlException")) {
+                        errorMessage.append("Insufficient permissions on HDFS back up directory");
+                        ignore = false;
+                    }
+                    if (output.contains("does not exist") || output.contains("File exist")) {
+                        ignore = true;
+                    } else {
+                        ignore = false;
+                    }
+                }
+                break;
+
+            case RESTORE:
+                if (trimmedOutput.length() > 0) {
+                    if (trimmedOutput.contains("AccessControlException")) {
+                        errorMessage.append("Insufficient permissions on HDFS back up directory");
+                        ignore = false;
+                    }
+                    if (output.contains("does not exist") || output.contains("File exist")) {
+                        ignore = true;
+                    } else {
+                        ignore = false;
+                    }
+                }
+                break;
+
+            case ASTERIX_DEPLOY:
+                if (trimmedOutput.length() > 0) {
+                    if (trimmedOutput.contains("Exception")) {
+                        ignore = false;
+                        errorMessage.append("Error in deploying Asterix: " + output);
+                        errorMessage.append("\nStop the instance to initiate a cleanup");
+                    }
+                }
+        }
+        if (ignore) {
+            return new OutputAnalysis(true, null);
+        } else {
+            return new OutputAnalysis(false, errorMessage.toString());
+        }
+    }
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/error/VerificationUtil.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/error/VerificationUtil.java
new file mode 100644
index 0000000..48988e8
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/error/VerificationUtil.java
@@ -0,0 +1,104 @@
+/*
+ * 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.asterix.installer.error;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.List;
+
+import edu.uci.ics.asterix.event.schema.cluster.Cluster;
+import edu.uci.ics.asterix.event.schema.cluster.Node;
+import edu.uci.ics.asterix.installer.driver.InstallerDriver;
+import edu.uci.ics.asterix.installer.driver.InstallerUtil;
+import edu.uci.ics.asterix.installer.model.AsterixInstance;
+import edu.uci.ics.asterix.installer.model.AsterixInstance.State;
+import edu.uci.ics.asterix.installer.model.AsterixRuntimeState;
+import edu.uci.ics.asterix.installer.model.ProcessInfo;
+
+public class VerificationUtil {
+
+    private static final String VERIFY_SCRIPT_PATH = InstallerDriver.getManagixHome() + File.separator
+            + InstallerDriver.MANAGIX_INTERNAL_DIR + File.separator + "scripts" + File.separator + "verify.sh";
+
+    public static AsterixRuntimeState getAsterixRuntimeState(AsterixInstance instance) throws Exception {
+
+        Cluster cluster = instance.getCluster();
+        List<String> args = new ArrayList<String>();
+        args.add(instance.getName());
+        args.add(instance.getCluster().getMasterNode().getIp());
+        for (Node node : cluster.getNode()) {
+            args.add(node.getIp());
+            args.add(instance.getName() + "_" + node.getId());
+        }
+
+        String output = InstallerUtil.executeLocalScript(VERIFY_SCRIPT_PATH, args);
+        boolean ccRunning = true;
+        List<String> failedNCs = new ArrayList<String>();
+        String[] infoFields;
+        ProcessInfo pInfo;
+        List<ProcessInfo> processes = new ArrayList<ProcessInfo>();
+
+        for (String line : output.split("\n")) {
+            infoFields = line.split(":");
+            try {
+                int pid = Integer.parseInt(infoFields[3]);
+                pInfo = new ProcessInfo(infoFields[0], infoFields[1], pid);
+                processes.add(pInfo);
+            } catch (Exception e) {
+                if (infoFields[0].equalsIgnoreCase("CC")) {
+                    ccRunning = false;
+                } else {
+                    failedNCs.add(infoFields[1]);
+                }
+            }
+        }
+        return new AsterixRuntimeState(processes, failedNCs, ccRunning);
+    }
+
+    public static void updateInstanceWithRuntimeDescription(AsterixInstance instance, AsterixRuntimeState state,
+            boolean expectedRunning) {
+        StringBuffer summary = new StringBuffer();
+        if (expectedRunning) {
+            if (!state.isCcRunning()) {
+                summary.append("Cluster Controller not running at " + instance.getCluster().getMasterNode().getIp()
+                        + "\n");
+                instance.setState(State.UNUSABLE);
+            }
+            if (state.getFailedNCs() != null && !state.getFailedNCs().isEmpty()) {
+                summary.append("Node Controller not running at the following nodes" + "\n");
+                for (String failedNC : state.getFailedNCs()) {
+                    summary.append(failedNC + "\n");
+                }
+                instance.setState(State.UNUSABLE);
+            }
+            if (!(instance.getState().equals(State.UNUSABLE))) {
+                instance.setState(State.ACTIVE);
+            }
+        } else {
+            if (state.getProcesses() != null && state.getProcesses().size() > 0) {
+                summary.append("Following process still running " + "\n");
+                for (ProcessInfo pInfo : state.getProcesses()) {
+                    summary.append(pInfo + "\n");
+                }
+                instance.setState(State.UNUSABLE);
+            } else {
+                instance.setState(State.INACTIVE);
+            }
+        }
+        state.setSummary(summary.toString());
+        instance.setAsterixRuntimeStates(state);
+    }
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/events/PatternCreator.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/events/PatternCreator.java
new file mode 100644
index 0000000..9db74b0
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/events/PatternCreator.java
@@ -0,0 +1,267 @@
+/*
+ * 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.asterix.installer.events;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.logging.Logger;
+
+import edu.uci.ics.asterix.event.driver.EventDriver;
+import edu.uci.ics.asterix.event.schema.cluster.Cluster;
+import edu.uci.ics.asterix.event.schema.cluster.Node;
+import edu.uci.ics.asterix.event.schema.pattern.Delay;
+import edu.uci.ics.asterix.event.schema.pattern.Event;
+import edu.uci.ics.asterix.event.schema.pattern.Nodeid;
+import edu.uci.ics.asterix.event.schema.pattern.Pattern;
+import edu.uci.ics.asterix.event.schema.pattern.Patterns;
+import edu.uci.ics.asterix.event.schema.pattern.Value;
+import edu.uci.ics.asterix.installer.command.StopCommand;
+import edu.uci.ics.asterix.installer.driver.InstallerDriver;
+import edu.uci.ics.asterix.installer.model.AsterixInstance;
+import edu.uci.ics.asterix.installer.service.ILookupService;
+import edu.uci.ics.asterix.installer.service.ServiceProvider;
+
+public class PatternCreator {
+
+    private static final Logger LOGGER = Logger.getLogger(PatternCreator.class.getName());
+    private ILookupService lookupService = ServiceProvider.INSTANCE.getLookupService();
+
+    private void addInitialDelay(Pattern p, int delay, String unit) {
+        Delay d = new Delay(new Value(null, "" + delay), unit);
+        p.setDelay(d);
+    }
+
+    public Patterns getStartAsterixPattern(String asterixInstanceName, Cluster cluster) throws Exception {
+        String ccLocationId = cluster.getMasterNode().getId();
+        String ccLocationIp = cluster.getMasterNode().getIp();
+
+        String destDir = cluster.getWorkingDir().getDir() + File.separator + "asterix";
+        List<Pattern> ps = new ArrayList<Pattern>();
+
+        Pattern copyHyracks = createCopyHyracksPattern(asterixInstanceName, cluster, ccLocationIp, destDir);
+        ps.add(copyHyracks);
+
+        Pattern createCC = createCCStartPattern(ccLocationId);
+        addInitialDelay(createCC, 2, "sec");
+        ps.add(createCC);
+
+        boolean copyHyracksToNC = !cluster.getWorkingDir().isNFS();
+        for (Node node : cluster.getNode()) {
+            if (copyHyracksToNC) {
+                Pattern copyHyracksForNC = createCopyHyracksPattern(asterixInstanceName, cluster, node.getIp(), destDir);
+                ps.add(copyHyracksForNC);
+            }
+            Pattern createNC = createNCStartPattern(cluster.getMasterNode().getIp(), node.getId(), asterixInstanceName
+                    + "_" + node.getId());
+            addInitialDelay(createNC, 4, "sec");
+            ps.add(createNC);
+        }
+
+        Patterns patterns = new Patterns(ps);
+        patterns.getPattern().addAll(createHadoopLibraryTransferPattern(cluster).getPattern());
+        return patterns;
+    }
+
+    public Patterns getStopCommandPattern(StopCommand stopCommand) throws Exception {
+        List<Pattern> ps = new ArrayList<Pattern>();
+        AsterixInstance asterixInstance = lookupService.getAsterixInstance(stopCommand.getAsterixInstanceName());
+        Cluster cluster = asterixInstance.getCluster();
+
+        String ccLocation = cluster.getMasterNode().getId();
+        Pattern createCC = createCCStopPattern(ccLocation);
+        addInitialDelay(createCC, 5, "sec");
+        ps.add(createCC);
+
+        String asterixInstanceName = stopCommand.getAsterixInstanceName();
+        int nodeControllerIndex = 1;
+        for (Node node : cluster.getNode()) {
+            Pattern createNC = createNCStopPattern(node.getId(), asterixInstanceName + "_" + nodeControllerIndex);
+            ps.add(createNC);
+            nodeControllerIndex++;
+        }
+
+        Patterns patterns = new Patterns(ps);
+        return patterns;
+    }
+
+    public Patterns getBackUpAsterixPattern(AsterixInstance instance, String backupPath) throws Exception {
+        Cluster cluster = instance.getCluster();
+        String clusterStore = instance.getCluster().getStore();
+        String hdfsUrl = InstallerDriver.getConfiguration().getBackup().getHdfs().getUrl();
+        String hadoopVersion = InstallerDriver.getConfiguration().getBackup().getHdfs().getVersion();
+        String hdfsBackupDir = InstallerDriver.getConfiguration().getBackup().getHdfs().getBackupDir();
+        String workingDir = cluster.getWorkingDir().getDir();
+        String backupId = "" + instance.getBackupInfo().size();
+        String nodeStore;
+        String pargs;
+        List<Pattern> patternList = new ArrayList<Pattern>();
+        for (Node node : cluster.getNode()) {
+            Nodeid nodeid = new Nodeid(new Value(null, node.getId()));
+            nodeStore = node.getStore() == null ? clusterStore : node.getStore();
+            pargs = workingDir + " " + instance.getName() + " " + nodeStore + " " + backupId + " " + hdfsUrl + " "
+                    + hadoopVersion + " " + hdfsBackupDir + " " + node.getId();
+            Event event = new Event("backup", nodeid, pargs);
+            patternList.add(new Pattern(null, 1, null, event));
+        }
+        return new Patterns(patternList);
+    }
+
+    public Patterns getRestoreAsterixPattern(AsterixInstance instance, int backupId) throws Exception {
+        Cluster cluster = instance.getCluster();
+        String clusterStore = instance.getCluster().getStore();
+        String hdfsUrl = InstallerDriver.getConfiguration().getBackup().getHdfs().getUrl();
+        String hadoopVersion = InstallerDriver.getConfiguration().getBackup().getHdfs().getVersion();
+        String hdfsBackupDir = InstallerDriver.getConfiguration().getBackup().getHdfs().getBackupDir();
+        String workingDir = cluster.getWorkingDir().getDir();
+        String nodeStore;
+        String pargs;
+        List<Pattern> patternList = new ArrayList<Pattern>();
+        for (Node node : cluster.getNode()) {
+            Nodeid nodeid = new Nodeid(new Value(null, node.getId()));
+            nodeStore = node.getStore() == null ? clusterStore : node.getStore();
+            pargs = workingDir + " " + instance.getName() + " " + nodeStore + " " + backupId + " " + hdfsUrl + " "
+                    + hadoopVersion + " " + hdfsBackupDir + " " + node.getId();
+            Event event = new Event("restore", nodeid, pargs);
+            patternList.add(new Pattern(null, 1, null, event));
+        }
+        return new Patterns(patternList);
+    }
+
+    public Patterns createHadoopLibraryTransferPattern(Cluster cluster) throws Exception {
+        List<Pattern> patternList = new ArrayList<Pattern>();
+        String workingDir = cluster.getWorkingDir().getDir();
+        String hadoopVersion = InstallerDriver.getConfiguration().getBackup().getHdfs().getVersion();
+        File hadoopDir = new File(InstallerDriver.getManagixHome() + File.separator
+                + InstallerDriver.MANAGIX_INTERNAL_DIR + File.separator + "hadoop-" + hadoopVersion);
+        if (!hadoopDir.exists()) {
+            throw new IllegalStateException("Hadoop version :" + hadoopVersion + " not supported");
+        }
+
+        Nodeid nodeid = new Nodeid(new Value(null, EventDriver.CLIENT_NODE.getId()));
+        String username = cluster.getUsername() != null ? cluster.getUsername() : System.getProperty("user.name");
+        String pargs = username + " " + hadoopDir.getAbsolutePath() + " " + cluster.getMasterNode().getIp() + " "
+                + workingDir;
+        Event event = new Event("directory_transfer", nodeid, pargs);
+        Pattern p = new Pattern(null, 1, null, event);
+        addInitialDelay(p, 2, "sec");
+        patternList.add(p);
+
+        boolean copyToNC = !cluster.getWorkingDir().isNFS();
+        if (copyToNC) {
+            for (Node node : cluster.getNode()) {
+                nodeid = new Nodeid(new Value(null, node.getId()));
+                pargs = cluster.getUsername() + " " + hadoopDir.getAbsolutePath() + " " + node.getIp() + " "
+                        + workingDir;
+                event = new Event("directory_transfer", nodeid, pargs);
+                p = new Pattern(null, 1, null, event);
+                addInitialDelay(p, 2, "sec");
+                patternList.add(p);
+            }
+        }
+        Patterns patterns = new Patterns(patternList);
+        return patterns;
+    }
+
+    public Patterns createDeleteInstancePattern(AsterixInstance instance) throws Exception {
+        List<Pattern> patternList = new ArrayList<Pattern>();
+        patternList.addAll(createRemoveAsterixStoragePattern(instance).getPattern());
+        if (instance.getBackupInfo() != null && instance.getBackupInfo().size() > 0) {
+            patternList.addAll(createRemoveHDFSBackupPattern(instance).getPattern());
+        }
+        Patterns patterns = new Patterns(patternList);
+        return patterns;
+    }
+
+    private Patterns createRemoveHDFSBackupPattern(AsterixInstance instance) throws Exception {
+        List<Pattern> patternList = new ArrayList<Pattern>();
+        Cluster cluster = instance.getCluster();
+        String hdfsUrl = InstallerDriver.getConfiguration().getBackup().getHdfs().getUrl();
+        String hadoopVersion = InstallerDriver.getConfiguration().getBackup().getHdfs().getVersion();
+        String hdfsBackupDir = InstallerDriver.getConfiguration().getBackup().getHdfs().getBackupDir();
+        String workingDir = cluster.getWorkingDir().getDir();
+        Node launchingNode = cluster.getNode().get(0);
+        Nodeid nodeid = new Nodeid(new Value(null, launchingNode.getId()));
+        String pathToDelete = hdfsBackupDir + File.separator + instance.getName();
+        String pargs = workingDir + " " + hadoopVersion + " " + hdfsUrl + " " + pathToDelete;
+        Event event = new Event("hdfs_delete", nodeid, pargs);
+        patternList.add(new Pattern(null, 1, null, event));
+        Patterns patterns = new Patterns(patternList);
+        return patterns;
+    }
+
+    private Patterns createRemoveAsterixStoragePattern(AsterixInstance instance) throws Exception {
+        List<Pattern> patternList = new ArrayList<Pattern>();
+        Cluster cluster = instance.getCluster();
+        String pargs = null;
+
+        for (Node node : cluster.getNode()) {
+            Nodeid nodeid = new Nodeid(new Value(null, node.getId()));
+            String[] nodeStores;
+            if (node.getStore() != null) {
+                nodeStores = node.getStore().trim().split(",");
+                for (String ns : nodeStores) {
+                    pargs = ns + File.separator + instance.getName();
+                }
+            } else {
+                nodeStores = cluster.getStore().trim().split(",");
+                for (String ns : nodeStores) {
+                    pargs = ns + File.separator + node.getId() + File.separator + instance.getName();
+                }
+            }
+            Event event = new Event("file_delete", nodeid, pargs);
+            patternList.add(new Pattern(null, 1, null, event));
+        }
+        Patterns patterns = new Patterns(patternList);
+        return patterns;
+    }
+
+    private Pattern createCopyHyracksPattern(String instanceName, Cluster cluster, String destinationIp, String destDir) {
+        Nodeid nodeid = new Nodeid(new Value(null, EventDriver.CLIENT_NODE.getId()));
+        String username = cluster.getUsername() != null ? cluster.getUsername() : System.getProperty("user.name");
+        String asterixZipName = InstallerDriver.getAsterixZip().substring(
+                InstallerDriver.getAsterixZip().lastIndexOf(File.separator) + 1);
+        String fileToTransfer = InstallerDriver.getAsterixDir() + File.separator + instanceName + File.separator
+                + asterixZipName;
+        String pargs = username + " " + fileToTransfer + " " + destinationIp + " " + destDir + " " + "unpack";
+        Event event = new Event("file_transfer", nodeid, pargs);
+        return new Pattern(null, 1, null, event);
+    }
+
+    private Pattern createCCStartPattern(String hostId) {
+        Nodeid nodeid = new Nodeid(new Value(null, hostId));
+        Event event = new Event("cc_start", nodeid, "");
+        return new Pattern(null, 1, null, event);
+    }
+
+    public Pattern createCCStopPattern(String hostId) {
+        Nodeid nodeid = new Nodeid(new Value(null, hostId));
+        Event event = new Event("cc_failure", nodeid, null);
+        return new Pattern(null, 1, null, event);
+    }
+
+    public Pattern createNCStartPattern(String ccHost, String hostId, String nodeControllerId) {
+        Nodeid nodeid = new Nodeid(new Value(null, hostId));
+        Event event = new Event("node_join", nodeid, ccHost + " " + nodeControllerId);
+        return new Pattern(null, 1, null, event);
+    }
+
+    public Pattern createNCStopPattern(String hostId, String nodeControllerId) {
+        Nodeid nodeid = new Nodeid(new Value(null, hostId));
+        Event event = new Event("node_failure", nodeid, nodeControllerId);
+        return new Pattern(null, 1, null, event);
+    }
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/AsterixInstance.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/AsterixInstance.java
new file mode 100644
index 0000000..f020b6d
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/AsterixInstance.java
@@ -0,0 +1,187 @@
+/*
+ * 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.asterix.installer.model;
+
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+import java.util.Map.Entry;
+import java.util.Properties;
+
+import edu.uci.ics.asterix.event.schema.cluster.Cluster;
+import edu.uci.ics.asterix.event.schema.cluster.Node;
+
+public class AsterixInstance implements Serializable {
+
+    private static final long serialVersionUID = 2874439550187520449L;
+
+    public enum State {
+        ACTIVE,
+        INACTIVE,
+        UNUSABLE
+    }
+
+    private final Cluster cluster;
+    private final String name;
+    private final Date createdTimestamp;
+    private Date stateChangeTimestamp;
+    private Date modifiedTimestamp;
+    private Properties configuration;
+    private State state;
+    private final String metadataNodeId;
+    private final String asterixVersion;
+    private final List<BackupInfo> backupInfo;
+    private final String webInterfaceUrl;
+    private AsterixRuntimeState runtimeState;
+    private State previousState;
+
+    public AsterixInstance(String name, Cluster cluster, Properties configuration, String metadataNodeId,
+            String asterixVersion) {
+        this.name = name;
+        this.cluster = cluster;
+        this.configuration = configuration;
+        this.metadataNodeId = metadataNodeId;
+        this.state = State.ACTIVE;
+        this.previousState = State.UNUSABLE;
+        this.asterixVersion = asterixVersion;
+        this.createdTimestamp = new Date();
+        this.backupInfo = new ArrayList<BackupInfo>();
+        this.webInterfaceUrl = "http://" + cluster.getMasterNode().getIp() + ":" + 19001;
+    }
+
+    public Date getModifiedTimestamp() {
+        return stateChangeTimestamp;
+    }
+
+    public Properties getConfiguration() {
+        return configuration;
+    }
+
+    public void setConfiguration(Properties properties) {
+        this.configuration = properties;
+    }
+
+    public State getState() {
+        return state;
+    }
+
+    public void setState(State state) {
+        this.previousState = this.state;
+        this.state = state;
+    }
+
+    public Cluster getCluster() {
+        return cluster;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public Date getCreatedTimestamp() {
+        return createdTimestamp;
+    }
+
+    public Date getStateChangeTimestamp() {
+        return stateChangeTimestamp;
+    }
+
+    public void setStateChangeTimestamp(Date stateChangeTimestamp) {
+        this.stateChangeTimestamp = stateChangeTimestamp;
+    }
+
+    public void setModifiedTimestamp(Date modifiedTimestamp) {
+        this.modifiedTimestamp = modifiedTimestamp;
+    }
+
+    public String getMetadataNodeId() {
+        return metadataNodeId;
+    }
+
+    public String getAsterixVersion() {
+        return asterixVersion;
+    }
+
+    public String getDescription(boolean detailed) {
+        StringBuffer buffer = new StringBuffer();
+        buffer.append("Name:" + name + "\n");
+        buffer.append("Created:" + createdTimestamp + "\n");
+        buffer.append("Web-Url:" + webInterfaceUrl + "\n");
+        buffer.append("State:" + state);
+        if (!state.equals(State.UNUSABLE) && stateChangeTimestamp != null) {
+            buffer.append(" (" + stateChangeTimestamp + ")" + "\n");
+        } else {
+            buffer.append("\n");
+        }
+        if (modifiedTimestamp != null) {
+            buffer.append("Last modified timestamp:" + modifiedTimestamp + "\n");
+        }
+
+        if (runtimeState.getSummary() != null && runtimeState.getSummary().length() > 0) {
+            buffer.append("\nWARNING!:" + runtimeState.getSummary() + "\n");
+        }
+        if (detailed) {
+            addDetailedInformation(buffer);
+        }
+        return buffer.toString();
+    }
+
+    public List<BackupInfo> getBackupInfo() {
+        return backupInfo;
+    }
+
+    public String getWebInterfaceUrl() {
+        return webInterfaceUrl;
+    }
+
+    public AsterixRuntimeState getAsterixRuntimeState() {
+        return runtimeState;
+    }
+
+    public void setAsterixRuntimeStates(AsterixRuntimeState runtimeState) {
+        this.runtimeState = runtimeState;
+    }
+
+    private void addDetailedInformation(StringBuffer buffer) {
+        buffer.append("Master node:" + cluster.getMasterNode().getId() + ":" + cluster.getMasterNode().getIp() + "\n");
+        for (Node node : cluster.getNode()) {
+            buffer.append(node.getId() + ":" + node.getIp() + "\n");
+        }
+
+        buffer.append("\n");
+        if (backupInfo != null && backupInfo.size() > 0) {
+            for (BackupInfo info : backupInfo) {
+                buffer.append("Backup:" + info.getId() + " created at " + info.getDate() + "\n");
+            }
+        }
+        buffer.append("\n");
+        buffer.append("Asterix version:" + asterixVersion + "\n");
+        buffer.append("Asterix Configuration" + "\n");
+        for (Entry<Object, Object> entry : configuration.entrySet()) {
+            buffer.append(entry.getKey() + " = " + entry.getValue() + "\n");
+        }
+        buffer.append("Metadata Node:" + metadataNodeId + "\n");
+        buffer.append("Processes" + "\n");
+        for (ProcessInfo pInfo : runtimeState.getProcesses()) {
+            buffer.append(pInfo + "\n");
+        }
+
+    }
+
+    public State getPreviousState() {
+        return previousState;
+    }
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/AsterixRuntimeState.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/AsterixRuntimeState.java
new file mode 100644
index 0000000..207c570
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/AsterixRuntimeState.java
@@ -0,0 +1,53 @@
+/*
+ * 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.asterix.installer.model;
+
+import java.io.Serializable;
+import java.util.List;
+
+public class AsterixRuntimeState implements Serializable {
+
+    private final List<ProcessInfo> processes;
+    private final List<String> failedNCs;
+    private final boolean ccRunning;
+    private String summary;
+
+    public AsterixRuntimeState(List<ProcessInfo> processes, List<String> failedNCs, boolean ccRunning) {
+        this.processes = processes;
+        this.failedNCs = failedNCs;
+        this.ccRunning = ccRunning;
+    }
+
+    public List<ProcessInfo> getProcesses() {
+        return processes;
+    }
+
+    public List<String> getFailedNCs() {
+        return failedNCs;
+    }
+
+    public boolean isCcRunning() {
+        return ccRunning;
+    }
+
+    public void setSummary(String summary) {
+        this.summary = summary;
+    }
+
+    public String getSummary() {
+        return summary;
+    }
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/BackupInfo.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/BackupInfo.java
new file mode 100644
index 0000000..a5d2b36
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/BackupInfo.java
@@ -0,0 +1,43 @@
+/*
+ * 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.asterix.installer.model;
+
+import java.io.Serializable;
+import java.util.Date;
+
+public class BackupInfo implements Serializable {
+   
+    private final int id;
+    private final Date date;
+
+    public BackupInfo(int id, Date date) {
+        this.id = id;
+        this.date = date;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public Date getDate() {
+        return date;
+    }
+    
+    @Override
+    public String toString() {
+        return id + "_" + date;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/EventList.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/EventList.java
new file mode 100644
index 0000000..e7f7264
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/EventList.java
@@ -0,0 +1,32 @@
+/*
+ * 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.asterix.installer.model;
+
+public class EventList {
+
+    public enum EventType {
+        NODE_JOIN,
+        NODE_FAILURE,
+        CC_START,
+        CC_FAILURE,
+        ASTERIX_DEPLOY,
+        BACKUP,
+        RESTORE,
+        FILE_DELETE,
+        HDFS_DELETE,
+        FILE_TRANSFER,
+        DIRECTORY_TRANSFER
+    }
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/ProcessInfo.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/ProcessInfo.java
new file mode 100644
index 0000000..2880671
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/model/ProcessInfo.java
@@ -0,0 +1,48 @@
+/*
+ * 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.asterix.installer.model;
+
+import java.io.Serializable;
+
+public class ProcessInfo implements Serializable {
+
+    private static final long serialVersionUID = 304186774065853730L;
+    private final String processName;
+    private final String host;
+    private final int processId;
+
+    public ProcessInfo(String processName, String host, int processId) {
+        this.processName = processName;
+        this.host = host;
+        this.processId = processId;
+    }
+
+    public String getProcessName() {
+        return processName;
+    }
+
+    public String getHost() {
+        return host;
+    }
+
+    public int getProcessId() {
+        return processId;
+    }
+
+    public String toString() {
+        return processName + " at " + host + " [ " + processId + " ] ";
+    }
+
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ILookupService.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ILookupService.java
new file mode 100644
index 0000000..f258e66
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ILookupService.java
@@ -0,0 +1,39 @@
+/*
+ * 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.asterix.installer.service;
+
+import java.util.List;
+
+import edu.uci.ics.asterix.installer.model.AsterixInstance;
+import edu.uci.ics.asterix.installer.schema.conf.Configuration;
+
+public interface ILookupService {
+
+    public void writeAsterixInstance(AsterixInstance asterixInstance) throws Exception;
+
+    public AsterixInstance getAsterixInstance(String name) throws Exception;
+
+    public boolean isRunning(Configuration conf) throws Exception;
+
+    public void startService(Configuration conf) throws Exception;
+
+    public boolean exists(String name) throws Exception;
+
+    public void removeAsterixInstance(String name) throws Exception;
+
+    public List<AsterixInstance> getAsterixInstances() throws Exception;
+
+    public void updateAsterixInstance(AsterixInstance updatedInstance) throws Exception;
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ServiceProvider.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ServiceProvider.java
new file mode 100644
index 0000000..1a9e9e6
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ServiceProvider.java
@@ -0,0 +1,30 @@
+/*
+ * 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.asterix.installer.service;
+
+public class ServiceProvider {
+
+    public static ServiceProvider INSTANCE = new ServiceProvider();
+    private static ILookupService lookupService = new ZooKeeperService();
+    
+    private ServiceProvider() {
+
+    }
+
+    public ILookupService getLookupService() {
+        return lookupService;
+    }
+ 
+}
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ZooKeeperService.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ZooKeeperService.java
new file mode 100644
index 0000000..a35da73
--- /dev/null
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/service/ZooKeeperService.java
@@ -0,0 +1,220 @@
+/*
+ * 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.asterix.installer.service;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.LinkedBlockingQueue;
+
+import org.apache.log4j.Logger;
+import org.apache.zookeeper.CreateMode;
+import org.apache.zookeeper.KeeperException;
+import org.apache.zookeeper.WatchedEvent;
+import org.apache.zookeeper.Watcher;
+import org.apache.zookeeper.ZooDefs.Ids;
+import org.apache.zookeeper.ZooKeeper;
+import org.apache.zookeeper.data.Stat;
+
+import edu.uci.ics.asterix.installer.driver.InstallerDriver;
+import edu.uci.ics.asterix.installer.driver.InstallerUtil;
+import edu.uci.ics.asterix.installer.error.InstallerException;
+import edu.uci.ics.asterix.installer.model.AsterixInstance;
+import edu.uci.ics.asterix.installer.schema.conf.Configuration;
+
+public class ZooKeeperService implements ILookupService {
+
+    private static final Logger LOGGER = Logger.getLogger(ZooKeeperService.class.getName());
+
+    private static final int ZOOKEEPER_LEADER_CONN_PORT = 2222;
+    private static final int ZOOKEEPER_LEADER_ELEC_PORT = 2223;
+    private static final int ZOOKEEPER_SESSION_TIME_OUT = 40 * 1000; //milliseconds
+    private static final String ZOOKEEPER_HOME = InstallerDriver.getManagixHome() + File.separator
+            + InstallerDriver.MANAGIX_INTERNAL_DIR + File.separator + "zookeeper";
+    private static final String ZOO_KEEPER_CONFIG = ZOOKEEPER_HOME + File.separator + "zk.cfg";
+
+    private boolean isRunning = false;
+    private ZooKeeper zk;
+    private String zkConnectionString;
+    private static final String ASTERIX_INSTANCE_BASE_PATH = "/Asterix";
+    private static final int DEFAULT_NODE_VERSION = -1;
+    private LinkedBlockingQueue<String> msgQ = new LinkedBlockingQueue<String>();
+    private ZooKeeperWatcher watcher = new ZooKeeperWatcher(msgQ);
+
+    public boolean isRunning(Configuration conf) throws Exception {
+        List<String> servers = conf.getZookeeper().getServers().getServer();
+        int clientPort = conf.getZookeeper().getClientPort().intValue();
+        StringBuffer connectionString = new StringBuffer();
+        for (String serverAddress : servers) {
+            connectionString.append(serverAddress);
+            connectionString.append(":");
+            connectionString.append(clientPort);
+            connectionString.append(",");
+        }
+        if (connectionString.length() > 0) {
+            connectionString.deleteCharAt(connectionString.length() - 1);
+        }
+        zkConnectionString = connectionString.toString();
+
+        zk = new ZooKeeper(zkConnectionString, ZOOKEEPER_SESSION_TIME_OUT, watcher);
+        try {
+            zk.exists("/dummy", watcher);
+            if (LOGGER.isDebugEnabled()) {
+                LOGGER.debug("ZooKeeper running at " + connectionString);
+            }
+            createRootIfNotExist();
+            isRunning = true;
+        } catch (KeeperException ke) {
+            isRunning = false;
+        }
+        return isRunning;
+    }
+
+    public void startService(Configuration conf) throws Exception {
+        if (LOGGER.isDebugEnabled()) {
+            LOGGER.debug("Starting ZooKeeper at " + zkConnectionString);
+        }
+        ZookeeperUtil.writeConfiguration(ZOO_KEEPER_CONFIG, conf, ZOOKEEPER_LEADER_CONN_PORT,
+                ZOOKEEPER_LEADER_ELEC_PORT);
+        String initScript = ZOOKEEPER_HOME + File.separator + "bin" + File.separator + "zk.init";
+        StringBuffer cmdBuffer = new StringBuffer();
+        cmdBuffer.append(initScript + " ");
+        cmdBuffer.append(conf.getZookeeper().getHomeDir() + " ");
+        List<String> zkServers = conf.getZookeeper().getServers().getServer();
+        for (String zkServer : zkServers) {
+            cmdBuffer.append(zkServer + " ");
+        }
+        Runtime.getRuntime().exec(cmdBuffer.toString());
+        zk = new ZooKeeper(zkConnectionString, ZOOKEEPER_SESSION_TIME_OUT, watcher);
+        msgQ.take();
+        createRootIfNotExist();
+    }
+
+    public void writeAsterixInstance(AsterixInstance asterixInstance) throws Exception {
+        String instanceBasePath = ASTERIX_INSTANCE_BASE_PATH + File.separator + asterixInstance.getName();
+        ByteArrayOutputStream b = new ByteArrayOutputStream();
+        ObjectOutputStream o = new ObjectOutputStream(b);
+        o.writeObject(asterixInstance);
+        zk.create(instanceBasePath, b.toByteArray(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
+    }
+
+    private void createRootIfNotExist() throws Exception {
+        try {
+            Stat stat = zk.exists(ASTERIX_INSTANCE_BASE_PATH, false);
+            if (stat == null) {
+                zk.create(ASTERIX_INSTANCE_BASE_PATH, "root".getBytes(), Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
+            }
+        } catch (Exception e) {
+            createRootIfNotExist();
+        }
+    }
+
+    public AsterixInstance getAsterixInstance(String name) throws Exception {
+        String path = ASTERIX_INSTANCE_BASE_PATH + File.separator + name;
+        Stat stat = zk.exists(ASTERIX_INSTANCE_BASE_PATH + File.separator + name, false);
+        if (stat == null) {
+            return null;
+        }
+        byte[] asterixInstanceBytes = zk.getData(path, false, new Stat());
+        return readAsterixInstanceObject(asterixInstanceBytes);
+    }
+
+    public boolean exists(String asterixInstanceName) throws Exception {
+        return zk.exists(ASTERIX_INSTANCE_BASE_PATH + File.separator + asterixInstanceName, false) != null;
+    }
+
+    public void removeAsterixInstance(String name) throws Exception {
+        if (!exists(name)) {
+            throw new InstallerException("Asterix instance by name " + name + " does not exists.");
+        }
+        zk.delete(ASTERIX_INSTANCE_BASE_PATH + File.separator + name, DEFAULT_NODE_VERSION);
+    }
+
+    public List<AsterixInstance> getAsterixInstances() throws Exception {
+        List<String> instanceNames = zk.getChildren(ASTERIX_INSTANCE_BASE_PATH, false);
+        List<AsterixInstance> asterixInstances = new ArrayList<AsterixInstance>();
+        String path;
+        for (String instanceName : instanceNames) {
+            path = ASTERIX_INSTANCE_BASE_PATH + File.separator + instanceName;
+            byte[] asterixInstanceBytes = zk.getData(path, false, new Stat());
+            asterixInstances.add(readAsterixInstanceObject(asterixInstanceBytes));
+        }
+        return asterixInstances;
+    }
+
+    private AsterixInstance readAsterixInstanceObject(byte[] asterixInstanceBytes) throws IOException,
+            ClassNotFoundException {
+        ByteArrayInputStream b = new ByteArrayInputStream(asterixInstanceBytes);
+        ObjectInputStream ois = new ObjectInputStream(b);
+        return (AsterixInstance) ois.readObject();
+    }
+
+    public void updateAsterixInstance(AsterixInstance updatedInstance) throws Exception {
+        removeAsterixInstance(updatedInstance.getName());
+        writeAsterixInstance(updatedInstance);
+    }
+
+}
+
+class ZooKeeperWatcher implements Watcher {
+
+    private boolean isRunning = true;
+    private LinkedBlockingQueue<String> msgQ;
+
+    public ZooKeeperWatcher(LinkedBlockingQueue<String> msgQ) {
+        this.msgQ = msgQ;
+    }
+
+    public void process(WatchedEvent wEvent) {
+        switch (wEvent.getState()) {
+            case SyncConnected:
+                msgQ.add("connected");
+                break;
+        }
+    }
+
+    public boolean isRunning() {
+        return isRunning;
+    }
+
+}
+
+class ZookeeperUtil {
+
+    public static void writeConfiguration(String zooKeeperConfigPath, Configuration conf, int leaderConnPort,
+            int leaderElecPort) throws IOException {
+
+        StringBuffer buffer = new StringBuffer();
+        buffer.append("tickTime=1000" + "\n");
+        buffer.append("dataDir=" + conf.getZookeeper().getHomeDir() + File.separator + "data" + "\n");
+        buffer.append("clientPort=" + conf.getZookeeper().getClientPort().intValue() + "\n");
+        buffer.append("initLimit=" + 2 + "\n");
+        buffer.append("syncLimit=" + 2 + "\n");
+
+        List<String> servers = conf.getZookeeper().getServers().getServer();
+        int serverId = 1;
+        for (String server : servers) {
+            buffer.append("server" + "." + serverId + "=" + server + ":" + leaderConnPort + ":" + leaderElecPort + "\n");
+            serverId++;
+        }
+        InstallerUtil.dumpToFile(zooKeeperConfigPath, buffer.toString());
+    }
+
+}
diff --git a/asterix-installer/src/main/resources/clusters/local.xml b/asterix-installer/src/main/resources/clusters/local.xml
new file mode 100644
index 0000000..827b3fa
--- /dev/null
+++ b/asterix-installer/src/main/resources/clusters/local.xml
@@ -0,0 +1,24 @@
+<cluster xmlns="cluster">
+  <name>local</name>
+  <workingDir>
+     <dir>/tmp/asterix-installer</dir>
+     <NFS>true</NFS> 
+  </workingDir>
+  <logdir>/tmp/asterix/logs</logdir>
+  <store>/tmp/asterix/storage</store>
+  <java_home></java_home>
+  <ram>1024m</ram>
+  <master-node>
+     <id>master</id>
+     <ip>127.0.0.1</ip>
+     <cluster-ip>127.0.0.1</cluster-ip>
+  </master-node>
+  <node>
+     <id>node1</id>
+     <ip>127.0.0.1</ip>
+  </node>
+  <node>
+     <id>node2</id>
+     <ip>127.0.0.1</ip>
+  </node>
+</cluster>
diff --git a/asterix-installer/src/main/resources/conf/asterix.conf b/asterix-installer/src/main/resources/conf/asterix.conf
new file mode 100644
index 0000000..659b48e
--- /dev/null
+++ b/asterix-installer/src/main/resources/conf/asterix.conf
@@ -0,0 +1 @@
+output_dir=/tmp/asterix_output/
diff --git a/asterix-installer/src/main/resources/conf/installer-conf.xml b/asterix-installer/src/main/resources/conf/installer-conf.xml
new file mode 100644
index 0000000..ed3f8a2
--- /dev/null
+++ b/asterix-installer/src/main/resources/conf/installer-conf.xml
@@ -0,0 +1,16 @@
+<configuration xmlns="installer">
+  <backup>
+    <hdfs>
+      <version>0.20.2</version>
+      <url></url>
+      <backupDir></backupDir>
+    </hdfs>
+  </backup>
+  <zookeeper>
+    <homeDir>/tmp/zookeeper</homeDir>
+    <clientPort>2900</clientPort>
+    <servers>
+      <server>localhost</server>
+    </servers>
+  </zookeeper>
+</configuration>
diff --git a/asterix-installer/src/main/resources/conf/log4j.properties b/asterix-installer/src/main/resources/conf/log4j.properties
new file mode 100644
index 0000000..b951c14
--- /dev/null
+++ b/asterix-installer/src/main/resources/conf/log4j.properties
@@ -0,0 +1,9 @@
+log4j.rootLogger=info, A1
+
+log4j.appender.A1=org.apache.log4j.ConsoleAppender
+log4j.appender.A1.layout=org.apache.log4j.PatternLayout
+# Print the date in ISO 8601 format
+log4j.appender.A1.layout.ConversionPattern=%d %-p: %n%m%n
+
+log4j.logger.edu.uci.ics.asterix.event.management=error
+log4j.logger.org.apache.zookeeper=error
diff --git a/asterix-installer/src/main/resources/hadoop-0.20.2/bin/hadoop b/asterix-installer/src/main/resources/hadoop-0.20.2/bin/hadoop
new file mode 100755
index 0000000..683e95d
--- /dev/null
+++ b/asterix-installer/src/main/resources/hadoop-0.20.2/bin/hadoop
@@ -0,0 +1,290 @@
+#!/usr/bin/env bash
+
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+# The Hadoop command script
+#
+# Environment Variables
+#
+#   JAVA_HOME        The java implementation to use.  Overrides JAVA_HOME.
+#
+#   HADOOP_CLASSPATH Extra Java CLASSPATH entries.
+#
+#   HADOOP_HEAPSIZE  The maximum amount of heap to use, in MB. 
+#                    Default is 1000.
+#
+#   HADOOP_OPTS      Extra Java runtime options.
+#   
+#   HADOOP_NAMENODE_OPTS       These options are added to HADOOP_OPTS 
+#   HADOOP_CLIENT_OPTS         when the respective command is run.
+#   HADOOP_{COMMAND}_OPTS etc  HADOOP_JT_OPTS applies to JobTracker 
+#                              for e.g.  HADOOP_CLIENT_OPTS applies to 
+#                              more than one command (fs, dfs, fsck, 
+#                              dfsadmin etc)  
+#
+#   HADOOP_CONF_DIR  Alternate conf dir. Default is ${HADOOP_HOME}/conf.
+#
+#   HADOOP_ROOT_LOGGER The root appender. Default is INFO,console
+#
+
+bin=`dirname "$0"`
+bin=`cd "$bin"; pwd`
+
+. "$bin"/hadoop-config.sh
+
+cygwin=false
+case "`uname`" in
+CYGWIN*) cygwin=true;;
+esac
+
+# if no args specified, show usage
+if [ $# = 0 ]; then
+  echo "Usage: hadoop [--config confdir] COMMAND"
+  echo "where COMMAND is one of:"
+  echo "  namenode -format     format the DFS filesystem"
+  echo "  secondarynamenode    run the DFS secondary namenode"
+  echo "  namenode             run the DFS namenode"
+  echo "  datanode             run a DFS datanode"
+  echo "  dfsadmin             run a DFS admin client"
+  echo "  mradmin              run a Map-Reduce admin client"
+  echo "  fsck                 run a DFS filesystem checking utility"
+  echo "  fs                   run a generic filesystem user client"
+  echo "  balancer             run a cluster balancing utility"
+  echo "  jobtracker           run the MapReduce job Tracker node" 
+  echo "  pipes                run a Pipes job"
+  echo "  tasktracker          run a MapReduce task Tracker node" 
+  echo "  job                  manipulate MapReduce jobs"
+  echo "  queue                get information regarding JobQueues" 
+  echo "  version              print the version"
+  echo "  jar <jar>            run a jar file"
+  echo "  distcp <srcurl> <desturl> copy file or directories recursively"
+  echo "  archive -archiveName NAME <src>* <dest> create a hadoop archive"
+  echo "  daemonlog            get/set the log level for each daemon"
+  echo " or"
+  echo "  CLASSNAME            run the class named CLASSNAME"
+  echo "Most commands print help when invoked w/o parameters."
+  exit 1
+fi
+
+# get arguments
+COMMAND=$1
+shift
+
+if [ -f "${HADOOP_CONF_DIR}/hadoop-env.sh" ]; then
+  . "${HADOOP_CONF_DIR}/hadoop-env.sh"
+fi
+
+# some Java parameters
+if [ "$JAVA_HOME" != "" ]; then
+  #echo "run java in $JAVA_HOME"
+  JAVA_HOME=$JAVA_HOME
+fi
+  
+if [ "$JAVA_HOME" = "" ]; then
+  echo "Error: JAVA_HOME is not set."
+  exit 1
+fi
+
+JAVA=$JAVA_HOME/bin/java
+JAVA_HEAP_MAX=-Xmx1000m 
+
+# check envvars which might override default args
+if [ "$HADOOP_HEAPSIZE" != "" ]; then
+  #echo "run with heapsize $HADOOP_HEAPSIZE"
+  JAVA_HEAP_MAX="-Xmx""$HADOOP_HEAPSIZE""m"
+  #echo $JAVA_HEAP_MAX
+fi
+
+# CLASSPATH initially contains $HADOOP_CONF_DIR
+CLASSPATH=${HADOOP_CONF_DIR}
+CLASSPATH=${CLASSPATH}:$JAVA_HOME/lib/tools.jar
+
+# for developers, add Hadoop classes to CLASSPATH
+if [ -d "$HADOOP_HOME/build/classes" ]; then
+  CLASSPATH=${CLASSPATH}:$HADOOP_HOME/build/classes
+fi
+if [ -d "$HADOOP_HOME/build/webapps" ]; then
+  CLASSPATH=${CLASSPATH}:$HADOOP_HOME/build
+fi
+if [ -d "$HADOOP_HOME/build/test/classes" ]; then
+  CLASSPATH=${CLASSPATH}:$HADOOP_HOME/build/test/classes
+fi
+if [ -d "$HADOOP_HOME/build/tools" ]; then
+  CLASSPATH=${CLASSPATH}:$HADOOP_HOME/build/tools
+fi
+
+# so that filenames w/ spaces are handled correctly in loops below
+IFS=
+
+# for releases, add core hadoop jar & webapps to CLASSPATH
+if [ -d "$HADOOP_HOME/webapps" ]; then
+  CLASSPATH=${CLASSPATH}:$HADOOP_HOME
+fi
+for f in $HADOOP_HOME/hadoop-*-core.jar; do
+  CLASSPATH=${CLASSPATH}:$f;
+done
+
+# add libs to CLASSPATH
+for f in $HADOOP_HOME/lib/*.jar; do
+  CLASSPATH=${CLASSPATH}:$f;
+done
+
+if [ -d "$HADOOP_HOME/build/ivy/lib/Hadoop/common" ]; then
+for f in $HADOOP_HOME/build/ivy/lib/Hadoop/common/*.jar; do
+  CLASSPATH=${CLASSPATH}:$f;
+done
+fi
+
+for f in $HADOOP_HOME/lib/jsp-2.1/*.jar; do
+  CLASSPATH=${CLASSPATH}:$f;
+done
+
+for f in $HADOOP_HOME/hadoop-*-tools.jar; do
+  TOOL_PATH=${TOOL_PATH}:$f;
+done
+for f in $HADOOP_HOME/build/hadoop-*-tools.jar; do
+  TOOL_PATH=${TOOL_PATH}:$f;
+done
+
+# add user-specified CLASSPATH last
+if [ "$HADOOP_CLASSPATH" != "" ]; then
+  CLASSPATH=${HADOOP_CLASSPATH}:${CLASSPATH}
+fi
+
+# default log directory & file
+if [ "$HADOOP_LOG_DIR" = "" ]; then
+  HADOOP_LOG_DIR="$HADOOP_HOME/logs"
+fi
+if [ "$HADOOP_LOGFILE" = "" ]; then
+  HADOOP_LOGFILE='hadoop.log'
+fi
+
+# default policy file for service-level authorization
+if [ "$HADOOP_POLICYFILE" = "" ]; then
+  HADOOP_POLICYFILE="hadoop-policy.xml"
+fi
+
+# restore ordinary behaviour
+unset IFS
+
+# figure out which class to run
+if [ "$COMMAND" = "namenode" ] ; then
+  CLASS='org.apache.hadoop.hdfs.server.namenode.NameNode'
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_NAMENODE_OPTS"
+elif [ "$COMMAND" = "secondarynamenode" ] ; then
+  CLASS='org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode'
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_SECONDARYNAMENODE_OPTS"
+elif [ "$COMMAND" = "datanode" ] ; then
+  CLASS='org.apache.hadoop.hdfs.server.datanode.DataNode'
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_DATANODE_OPTS"
+elif [ "$COMMAND" = "fs" ] ; then
+  CLASS=org.apache.hadoop.fs.FsShell
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_CLIENT_OPTS"
+elif [ "$COMMAND" = "dfs" ] ; then
+  CLASS=org.apache.hadoop.fs.FsShell
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_CLIENT_OPTS"
+elif [ "$COMMAND" = "dfsadmin" ] ; then
+  CLASS=org.apache.hadoop.hdfs.tools.DFSAdmin
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_CLIENT_OPTS"
+elif [ "$COMMAND" = "mradmin" ] ; then
+  CLASS=org.apache.hadoop.mapred.tools.MRAdmin
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_CLIENT_OPTS"
+elif [ "$COMMAND" = "fsck" ] ; then
+  CLASS=org.apache.hadoop.hdfs.tools.DFSck
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_CLIENT_OPTS"
+elif [ "$COMMAND" = "balancer" ] ; then
+  CLASS=org.apache.hadoop.hdfs.server.balancer.Balancer
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_BALANCER_OPTS"
+elif [ "$COMMAND" = "jobtracker" ] ; then
+  CLASS=org.apache.hadoop.mapred.JobTracker
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_JOBTRACKER_OPTS"
+elif [ "$COMMAND" = "tasktracker" ] ; then
+  CLASS=org.apache.hadoop.mapred.TaskTracker
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_TASKTRACKER_OPTS"
+elif [ "$COMMAND" = "job" ] ; then
+  CLASS=org.apache.hadoop.mapred.JobClient
+elif [ "$COMMAND" = "queue" ] ; then
+  CLASS=org.apache.hadoop.mapred.JobQueueClient
+elif [ "$COMMAND" = "pipes" ] ; then
+  CLASS=org.apache.hadoop.mapred.pipes.Submitter
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_CLIENT_OPTS"
+elif [ "$COMMAND" = "version" ] ; then
+  CLASS=org.apache.hadoop.util.VersionInfo
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_CLIENT_OPTS"
+elif [ "$COMMAND" = "jar" ] ; then
+  CLASS=org.apache.hadoop.util.RunJar
+elif [ "$COMMAND" = "distcp" ] ; then
+  CLASS=org.apache.hadoop.tools.DistCp
+  CLASSPATH=${CLASSPATH}:${TOOL_PATH}
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_CLIENT_OPTS"
+elif [ "$COMMAND" = "daemonlog" ] ; then
+  CLASS=org.apache.hadoop.log.LogLevel
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_CLIENT_OPTS"
+elif [ "$COMMAND" = "archive" ] ; then
+  CLASS=org.apache.hadoop.tools.HadoopArchives
+  CLASSPATH=${CLASSPATH}:${TOOL_PATH}
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_CLIENT_OPTS"
+elif [ "$COMMAND" = "sampler" ] ; then
+  CLASS=org.apache.hadoop.mapred.lib.InputSampler
+  HADOOP_OPTS="$HADOOP_OPTS $HADOOP_CLIENT_OPTS"
+else
+  CLASS=$COMMAND
+fi
+
+# cygwin path translation
+if $cygwin; then
+  CLASSPATH=`cygpath -p -w "$CLASSPATH"`
+  HADOOP_HOME=`cygpath -w "$HADOOP_HOME"`
+  HADOOP_LOG_DIR=`cygpath -w "$HADOOP_LOG_DIR"`
+  TOOL_PATH=`cygpath -p -w "$TOOL_PATH"`
+fi
+# setup 'java.library.path' for native-hadoop code if necessary
+JAVA_LIBRARY_PATH=''
+if [ -d "${HADOOP_HOME}/build/native" -o -d "${HADOOP_HOME}/lib/native" ]; then
+  JAVA_PLATFORM=`CLASSPATH=${CLASSPATH} ${JAVA} -Xmx32m org.apache.hadoop.util.PlatformName | sed -e "s/ /_/g"`
+  
+  if [ -d "$HADOOP_HOME/build/native" ]; then
+    JAVA_LIBRARY_PATH=${HADOOP_HOME}/build/native/${JAVA_PLATFORM}/lib
+  fi
+  
+  if [ -d "${HADOOP_HOME}/lib/native" ]; then
+    if [ "x$JAVA_LIBRARY_PATH" != "x" ]; then
+      JAVA_LIBRARY_PATH=${JAVA_LIBRARY_PATH}:${HADOOP_HOME}/lib/native/${JAVA_PLATFORM}
+    else
+      JAVA_LIBRARY_PATH=${HADOOP_HOME}/lib/native/${JAVA_PLATFORM}
+    fi
+  fi
+fi
+
+# cygwin path translation
+if $cygwin; then
+  JAVA_LIBRARY_PATH=`cygpath -p "$JAVA_LIBRARY_PATH"`
+fi
+
+HADOOP_OPTS="$HADOOP_OPTS -Dhadoop.log.dir=$HADOOP_LOG_DIR"
+HADOOP_OPTS="$HADOOP_OPTS -Dhadoop.log.file=$HADOOP_LOGFILE"
+HADOOP_OPTS="$HADOOP_OPTS -Dhadoop.home.dir=$HADOOP_HOME"
+HADOOP_OPTS="$HADOOP_OPTS -Dhadoop.id.str=$HADOOP_IDENT_STRING"
+HADOOP_OPTS="$HADOOP_OPTS -Dhadoop.root.logger=${HADOOP_ROOT_LOGGER:-INFO,console}"
+if [ "x$JAVA_LIBRARY_PATH" != "x" ]; then
+  HADOOP_OPTS="$HADOOP_OPTS -Djava.library.path=$JAVA_LIBRARY_PATH"
+fi  
+HADOOP_OPTS="$HADOOP_OPTS -Dhadoop.policy.file=$HADOOP_POLICYFILE"
+
+# run it
+#echo "exec "$JAVA" $JAVA_HEAP_MAX $HADOOP_OPTS -classpath "$CLASSPATH" $CLASS "$@""
+exec "$JAVA" $JAVA_HEAP_MAX $HADOOP_OPTS -classpath "$CLASSPATH" $CLASS "$@"
diff --git a/asterix-installer/src/main/resources/hadoop-0.20.2/bin/hadoop-config.sh b/asterix-installer/src/main/resources/hadoop-0.20.2/bin/hadoop-config.sh
new file mode 100755
index 0000000..1f9d52d
--- /dev/null
+++ b/asterix-installer/src/main/resources/hadoop-0.20.2/bin/hadoop-config.sh
@@ -0,0 +1,68 @@
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# included in all the hadoop scripts with source command
+# should not be executable directly
+# also should not be passed any arguments, since we need original $*
+
+# resolve links - $0 may be a softlink
+
+this="$0"
+while [ -h "$this" ]; do
+  ls=`ls -ld "$this"`
+  link=`expr "$ls" : '.*-> \(.*\)$'`
+  if expr "$link" : '.*/.*' > /dev/null; then
+    this="$link"
+  else
+    this=`dirname "$this"`/"$link"
+  fi
+done
+
+# convert relative path to absolute path
+bin=`dirname "$this"`
+script=`basename "$this"`
+bin=`cd "$bin"; pwd`
+this="$bin/$script"
+
+# the root of the Hadoop installation
+export HADOOP_HOME=`dirname "$this"`/..
+
+#check to see if the conf dir is given as an optional argument
+if [ $# -gt 1 ]
+then
+    if [ "--config" = "$1" ]
+	  then
+	      shift
+	      confdir=$1
+	      shift
+	      HADOOP_CONF_DIR=$confdir
+    fi
+fi
+ 
+# Allow alternate conf dir location.
+HADOOP_CONF_DIR="${HADOOP_CONF_DIR:-$HADOOP_HOME/conf}"
+
+#check to see it is specified whether to use the slaves or the
+# masters file
+if [ $# -gt 1 ]
+then
+    if [ "--hosts" = "$1" ]
+    then
+        shift
+        slavesfile=$1
+        shift
+        export HADOOP_SLAVES="${HADOOP_CONF_DIR}/$slavesfile"
+    fi
+fi
diff --git a/asterix-installer/src/main/resources/hadoop-0.20.2/conf/hadoop-env.sh b/asterix-installer/src/main/resources/hadoop-0.20.2/conf/hadoop-env.sh
new file mode 100644
index 0000000..e9396a4
--- /dev/null
+++ b/asterix-installer/src/main/resources/hadoop-0.20.2/conf/hadoop-env.sh
@@ -0,0 +1,54 @@
+# Set Hadoop-specific environment variables here.
+
+# The only required environment variable is JAVA_HOME.  All others are
+# optional.  When running a distributed configuration it is best to
+# set JAVA_HOME in this file, so that it is correctly defined on
+# remote nodes.
+
+# The java implementation to use.  Required.
+# export JAVA_HOME=$JAVA_HOME
+
+# Extra Java CLASSPATH elements.  Optional.
+# export HADOOP_CLASSPATH=
+
+# The maximum amount of heap to use, in MB. Default is 1000.
+# export HADOOP_HEAPSIZE=2000
+
+# Extra Java runtime options.  Empty by default.
+# export HADOOP_OPTS=-server
+
+# Command specific options appended to HADOOP_OPTS when specified
+export HADOOP_NAMENODE_OPTS="-Dcom.sun.management.jmxremote $HADOOP_NAMENODE_OPTS"
+export HADOOP_SECONDARYNAMENODE_OPTS="-Dcom.sun.management.jmxremote $HADOOP_SECONDARYNAMENODE_OPTS"
+export HADOOP_DATANODE_OPTS="-Dcom.sun.management.jmxremote $HADOOP_DATANODE_OPTS"
+export HADOOP_BALANCER_OPTS="-Dcom.sun.management.jmxremote $HADOOP_BALANCER_OPTS"
+export HADOOP_JOBTRACKER_OPTS="-Dcom.sun.management.jmxremote $HADOOP_JOBTRACKER_OPTS"
+# export HADOOP_TASKTRACKER_OPTS=
+# The following applies to multiple commands (fs, dfs, fsck, distcp etc)
+# export HADOOP_CLIENT_OPTS
+
+# Extra ssh options.  Empty by default.
+# export HADOOP_SSH_OPTS="-o ConnectTimeout=1 -o SendEnv=HADOOP_CONF_DIR"
+
+# Where log files are stored.  $HADOOP_HOME/logs by default.
+# export HADOOP_LOG_DIR=${HADOOP_HOME}/logs
+
+# File naming remote slave hosts.  $HADOOP_HOME/conf/slaves by default.
+# export HADOOP_SLAVES=${HADOOP_HOME}/conf/slaves
+
+# host:path where hadoop code should be rsync'd from.  Unset by default.
+# export HADOOP_MASTER=master:/home/$USER/src/hadoop
+
+# Seconds to sleep between slave commands.  Unset by default.  This
+# can be useful in large clusters, where, e.g., slave rsyncs can
+# otherwise arrive faster than the master can service them.
+# export HADOOP_SLAVE_SLEEP=0.1
+
+# The directory where pid files are stored. /tmp by default.
+# export HADOOP_PID_DIR=/var/hadoop/pids
+
+# A string representing this instance of hadoop. $USER by default.
+# export HADOOP_IDENT_STRING=$USER
+
+# The scheduling priority for daemon processes.  See 'man nice'.
+# export HADOOP_NICENESS=10
diff --git a/asterix-installer/src/main/resources/schema/installer-conf.xsd b/asterix-installer/src/main/resources/schema/installer-conf.xsd
new file mode 100644
index 0000000..489b024
--- /dev/null
+++ b/asterix-installer/src/main/resources/schema/installer-conf.xsd
@@ -0,0 +1,64 @@
+<?xml version="1.0" encoding="ISO-8859-1" ?>
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:mg="installer" targetNamespace="installer" elementFormDefault="qualified">
+
+<!-- definition of simple types --> 
+<xs:element name="asterix_home" type="xs:string"/>
+<xs:element name="hyracks_home" type="xs:string"/>
+<xs:element name="hdfsurl" type="xs:string"/>
+<xs:element name="server" type="xs:string"/>
+<xs:element name="clientPort" type="xs:integer"/>
+<xs:element name="homeDir" type="xs:string"/>
+<xs:element name="version" type="xs:string"/>
+<xs:element name="url" type="xs:string"/>
+<xs:element name="backupDir" type="xs:string"/>
+
+<!-- definition of complex elements -->
+<xs:element name="hdfs">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="mg:version"/>
+      <xs:element ref="mg:url"/>
+      <xs:element ref="mg:backupDir"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<xs:element name="backup">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="mg:hdfs"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<xs:element name="zookeeper">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="mg:homeDir"/>
+      <xs:element ref="mg:clientPort"/>
+      <xs:element ref="mg:servers"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<xs:element name="servers">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="mg:server" maxOccurs="unbounded"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+<xs:element name="configuration">
+  <xs:complexType>
+    <xs:sequence>
+      <xs:element ref="mg:backup" minOccurs="0"/>
+      <xs:element ref="mg:asterix_home" minOccurs="0"/>
+      <xs:element ref="mg:hyracks_home" minOccurs="0"/>
+      <xs:element ref="mg:hdfsurl" minOccurs="0"/>
+      <xs:element ref="mg:zookeeper"/>
+    </xs:sequence>
+  </xs:complexType>
+</xs:element>
+
+</xs:schema>     
diff --git a/asterix-installer/src/main/resources/scripts/managix b/asterix-installer/src/main/resources/scripts/managix
new file mode 100755
index 0000000..cd0794e
--- /dev/null
+++ b/asterix-installer/src/main/resources/scripts/managix
@@ -0,0 +1,20 @@
+if [ -z $MANAGIX_HOME ] 
+ then
+   echo "MANAGIX_HOME is not defined"
+   exit 1
+fi
+
+VERSION=0.0.4-SNAPSHOT
+
+for jar in `ls $MANAGIX_HOME/lib/*.jar`
+  do 
+  if [ -z $MANAGIX_CLASSPATH ] 
+  then 
+    MANAGIX_CLASSPATH=$jar 
+  else
+    MANAGIX_CLASSPATH=$MANAGIX_CLASSPATH:$jar 
+  fi
+done
+
+MANAGIX_CLASSPATH=$MANAGIX_CLASSPATH:$MANAGIX_HOME/conf/log4j.properties
+java $JAVA_OPTS -Dlog4j.configuration=file:$MANAGIX_HOME/conf/log4j.properties -cp $MANAGIX_CLASSPATH edu.uci.ics.asterix.installer.driver.InstallerDriver $@
diff --git a/asterix-installer/src/main/resources/scripts/verify.sh b/asterix-installer/src/main/resources/scripts/verify.sh
new file mode 100755
index 0000000..cac8189
--- /dev/null
+++ b/asterix-installer/src/main/resources/scripts/verify.sh
@@ -0,0 +1,21 @@
+INSTANCE_NAME=$1
+MASTER_NODE=$2
+shift 2
+numargs=$#
+for ((i=1 ; i <= numargs ; i=i+2))
+do
+ host=$1
+ nc_id=$2
+ INFO=$(ssh $host "ps -ef | grep nc_join | grep -v grep | grep -v ssh| grep $nc_id" | head -n 1 )
+ PARENT_ID=`echo  $INFO | cut -d " "  -f2`
+ PID_INFO=$(ssh $host "ps -ef |  grep asterix | grep -v grep | grep -v nc_join |  grep $PARENT_ID") 
+ PID=`echo $PID_INFO | cut -d " " -f2`
+ echo "NC:$host:$nc_id:$PID"
+ shift 2
+done
+
+CC_PARENT_ID_INFO=$(ssh $MASTER_NODE "ps -ef  | grep asterix | grep cc_start | grep -v ssh")
+CC_PARENT_ID=`echo $CC_PARENT_ID_INFO | tr -s " " | cut -d " " -f2` 
+CC_ID_INFO=$(ssh $MASTER_NODE "ps -ef | grep asterix | grep $CC_PARENT_ID | grep -v bash")
+CC_ID=`echo $CC_ID_INFO |  tr -s " " | cut -d " " -f2`
+echo "CC:$MASTER_NODE:N/A:$CC_ID"
diff --git a/asterix-installer/src/main/resources/zookeeper/start_zk.sh b/asterix-installer/src/main/resources/zookeeper/start_zk.sh
new file mode 100755
index 0000000..033e5f8
--- /dev/null
+++ b/asterix-installer/src/main/resources/zookeeper/start_zk.sh
@@ -0,0 +1,8 @@
+ZK_HOME=$1
+ZK_ID=$2
+mkdir $ZK_HOME/data
+echo $2 > $ZK_HOME/data/myid
+CLASSPATH=$ZK_HOME/lib/zookeeper-3.4.5.jar:$ZK_HOME/lib/log4j-1.2.15.jar:$ZK_HOME/lib/slf4j-api-1.6.1.jar:$ZK_HOME/conf:$ZK_HOME/conf/log4j.properties
+ZK_CONF=$ZK_HOME/zk.cfg
+export JAVA_OPTS="-Xdebug -Xrunjdwp:transport=dt_socket,address=8400,server=y,suspend=n"
+java $JAVA_OPTS -Dlog4j.configuration="file:$ZK_HOME/conf/log4j.properties" -cp $CLASSPATH org.apache.zookeeper.server.quorum.QuorumPeerMain $ZK_CONF
diff --git a/asterix-installer/src/main/resources/zookeeper/zk.init b/asterix-installer/src/main/resources/zookeeper/zk.init
new file mode 100755
index 0000000..9b554b1
--- /dev/null
+++ b/asterix-installer/src/main/resources/zookeeper/zk.init
@@ -0,0 +1,13 @@
+ZK_HOME=$1
+shift 1
+cd $MANAGIX_HOME/.managix/zookeeper
+tar cf zk.pkg.tar *
+zk_server_id=1
+for zk_host in  $@
+do
+  ssh $zk_host "mkdir $ZK_HOME"
+  scp ./zk.pkg.tar $zk_host:$ZK_HOME/
+  ssh $zk_host "cd $ZK_HOME && tar xf $ZK_HOME/zk.pkg.tar && chmod +x $ZK_HOME/bin/start_zk.sh"
+  ssh $zk_host "$ZK_HOME/bin/start_zk.sh $ZK_HOME $zk_server_id" &
+  zk_server_id=`expr $zk_server_id + 1`	
+done
diff --git a/pom.xml b/pom.xml
index 67ed5d3..592edc5 100644
--- a/pom.xml
+++ b/pom.xml
@@ -82,10 +82,11 @@
                 <module>asterix-hyracks-glue</module>
                 <module>asterix-external-data</module>
                 <module>asterix-metadata</module>
-                <module>asterix-dist</module>
+                <module>asterix-installer</module>
+                <module>asterix-events</module>
                 <module>asterix-test-framework</module>
-        <module>asterix-maven-plugins</module>
-        <module>asterix-server</module>
+                <module>asterix-maven-plugins</module>
+                <module>asterix-server</module>
         </modules>
 
 	<repositories>