diff --git a/asterix-events/src/main/resources/events/backup/backup.sh b/asterix-events/src/main/resources/events/backup/backup.sh
index 601b81d..556ca39 100755
--- a/asterix-events/src/main/resources/events/backup/backup.sh
+++ b/asterix-events/src/main/resources/events/backup/backup.sh
@@ -1,32 +1,44 @@
-echo $@ >> ~/backup.log
 WORKING_DIR=$1
 ASTERIX_INSTANCE_NAME=$2
 ASTERIX_IODEVICES=$3
 NODE_STORE=$4
 ASTERIX_ROOT_METADATA_DIR=$5
-BACKUP_ID=$6
-BACKUP_DIR=$7
-BACKUP_TYPE=$8
-NODE_ID=$9
+TXN_LOG_DIR_NAME=$6
+BACKUP_ID=$7
+BACKUP_DIR=$8
+BACKUP_TYPE=$9
+NODE_ID=${10}
 
 nodeIODevices=$(echo $ASTERIX_IODEVICES | tr "," "\n")
 
 if [ $BACKUP_TYPE == "hdfs" ];
 then
-  HDFS_URL=${10}
-  HADOOP_VERSION=${11}
+  HDFS_URL=${11}
+  HADOOP_VERSION=${12}
   export HADOOP_HOME=$WORKING_DIR/hadoop-$HADOOP_VERSION
   index=1
   for nodeIODevice in $nodeIODevices
   do
     STORE_DIR=$nodeIODevice/$NODE_STORE
-    MANGLED_DIR_NAME=`echo $STORE_DIR | tr / _`
-    NODE_BACKUP_DIR=$BACKUP_DIR/$ASTERIX_INSTANCE_NAME/$BACKUP_ID/$NODE_ID/$MANGLED_DIR_NAME
-    $HADOOP_HOME/bin/hadoop fs -copyFromLocal $STORE_DIR/ $HDFS_URL/$NODE_BACKUP_DIR/
+    TXN_LOG_DIR=$nodeIODevice/$TXN_LOG_DIR_NAME
+    NODE_BACKUP_DIR=$BACKUP_DIR/$ASTERIX_INSTANCE_NAME/$BACKUP_ID/$NODE_ID/
+   
+    # make the destination directory 
+    $HADOOP_HOME/bin/hadoop fs -mkdir $STORE_DIR $HDFS_URL/$NODE_BACKUP_DIR
+
+    # copy store directory
+    $HADOOP_HOME/bin/hadoop fs -copyFromLocal $STORE_DIR $HDFS_URL/$NODE_BACKUP_DIR/
+
+    # copy asterix root metadata directory and log directory from the primary(first) iodevice
     if [ $index -eq 1 ];
     then
-      $HADOOP_HOME/bin/hadoop fs -copyFromLocal $nodeIODevice/$ASTERIX_ROOT_METADATA_DIR $HDFS_URL/$BACKUP_DIR/$ASTERIX_INSTANCE_NAME/$BACKUP_ID/$NODE_ID/
+      # copy asterix root metadata directory
+      $HADOOP_HOME/bin/hadoop fs -copyFromLocal $nodeIODevice/$ASTERIX_ROOT_METADATA_DIR $HDFS_URL/$NODE_BACKUP_DIR/
+
+      # copy log directory 
+      $HADOOP_HOME/bin/hadoop fs -copyFromLocal $TXN_LOG_DIR $HDFS_URL/$NODE_BACKUP_DIR/
     fi
+
     index=`expr $index + 1`
   done
 else 
@@ -34,17 +46,27 @@
   for nodeIODevice in $nodeIODevices
   do
     STORE_DIR=$nodeIODevice/$NODE_STORE
-    MANGLED_DIR_NAME=`echo $STORE_DIR | tr / _`
-    NODE_BACKUP_DIR=$BACKUP_DIR/$ASTERIX_INSTANCE_NAME/$BACKUP_ID/$NODE_ID/$MANGLED_DIR_NAME
+    TXN_LOG_DIR=$nodeIODevice/$TXN_LOG_DIR_NAME
+    NODE_BACKUP_DIR=$BACKUP_DIR/$ASTERIX_INSTANCE_NAME/$BACKUP_ID/$NODE_ID
+
+    # create the backup directory, if it does not exists
     if [ ! -d $NODE_BACKUP_DIR ];
     then
       mkdir -p $NODE_BACKUP_DIR
     fi
-    cp -r  $STORE_DIR/* $NODE_BACKUP_DIR/
+
+    # copy store directory
+    cp -r $STORE_DIR $NODE_BACKUP_DIR/
+
+    # copy asterix root metadata directory and log directory from the primary(first) iodevice
     if [ $index -eq 1 ];
     then
-      cp -r $nodeIODevice/$ASTERIX_ROOT_METADATA_DIR $BACKUP_DIR/$ASTERIX_INSTANCE_NAME/$BACKUP_ID/$NODE_ID/
+      cp -r $nodeIODevice/$ASTERIX_ROOT_METADATA_DIR  $NODE_BACKUP_DIR/
+
+      # copy log directory
+      cp -r $TXN_LOG_DIR $NODE_BACKUP_DIR/
     fi
+
     index=`expr $index + 1`
   done
 fi
diff --git a/asterix-events/src/main/resources/events/restore/restore.sh b/asterix-events/src/main/resources/events/restore/restore.sh
index 85e3eb3..6396eec 100755
--- a/asterix-events/src/main/resources/events/restore/restore.sh
+++ b/asterix-events/src/main/resources/events/restore/restore.sh
@@ -3,51 +3,73 @@
 ASTERIX_IODEVICES=$3
 NODE_STORE=$4
 ASTERIX_ROOT_METADATA_DIR=$5
-BACKUP_ID=$6
-BACKUP_DIR=$7
-BACKUP_TYPE=$8
-NODE_ID=$9
-HDFS_URL=${10}
-HADOOP_VERSION=${11}
+TXN_LOG_DIR_NAME=$6
+BACKUP_ID=$7
+BACKUP_DIR=$8
+BACKUP_TYPE=$9
+NODE_ID=${10}
+HDFS_URL=${11}
+HADOOP_VERSION=${12}
+HADOOP_HOME=$WORKING_DIR/hadoop-$HADOOP_VERSION
 
-export HADOOP_HOME=$WORKING_DIR/hadoop-$HADOOP_VERSION
 iodevices=$(echo $ASTERIX_IODEVICES | tr "," "\n")
 
 index=1
 for iodevice in $iodevices
 do
-  MANGLED_BACKUP_DIR=`echo $iodevice | tr / _`
-  NODE_BACKUP_DIR=$BACKUP_DIR/$ASTERIX_INSTANCE_NAME/$BACKUP_ID/$NODE_ID/$MANGLED_BACKUP_DIR
-  DEST_DIR=$iodevice/$NODE_STORE/
-  if [ ! -d $DEST_DIR ]
-  then 
-    mkdir -p $DEST_DIR
-  else 
-    rm -rf $DEST_DIR
+  NODE_BACKUP_DIR=$BACKUP_DIR/$ASTERIX_INSTANCE_NAME/$BACKUP_ID/$NODE_ID
+
+  # remove the existing store directory
+  STORE_DIR=$iodevice/$NODE_STORE
+
+  # if STORE_DIR ends with a /, remove it
+  if [ ${STORE_DIR:${#STORE_DIR}-1} == "/" ];
+  then
+    STORE_DIR=${STORE_DIR:0:${#STORE_DIR}-1}
   fi
 
-  if [ ! -d $iodevice/$ASTERIX_ROOT_METADATA_DIR ]
-  then
-    mkdir -p $iodevice/$ASTERIX_ROOT_METADATA_DIR
-  else 
-    rm -rf $iodevice/$ASTERIX_ROOT_METADATA_DIR
-  fi 
+  DEST_STORE_DIR=${STORE_DIR%/*}
+  SOURCE_STORE_DIR=${NODE_STORE##*/}
+  rm -rf $DEST_STORE_DIR/$SOURCE_STORE_DIR
+
+  # remove the existing log directory
+  DEST_LOG_DIR=$iodevice/$TXN_LOG_DIR_NAME/
+  rm -rf $DEST_LOG_DIR
+
+  # remove the existing asterix metadata directory
+  rm -rf $iodevice/$ASTERIX_ROOT_METADATA_DIR
 
   if [ $BACKUP_TYPE == "hdfs" ];
   then
-    $HADOOP_HOME/bin/hadoop fs -copyToLocal $HDFS_URL/$NODE_BACKUP_DIR/*  $DEST_DIR/ 
-    if [ $index -eq 1 ];
-    then
-      $HADOOP_HOME/bin/hadoop fs -copyToLocal $HDFS_URL/$BACKUP_DIR/$ASTERIX_INSTANCE_NAME/$BACKUP_ID/$NODE_ID/$ASTERIX_ROOT_METADATA_DIR $iodevice/
-    fi
+      # RESTORE FROM HDFS BACKUP
+
+      # copy store directory
+      $HADOOP_HOME/bin/hadoop fs -copyToLocal $HDFS_URL/$NODE_BACKUP_DIR/$SOURCE_STORE_DIR  $DEST_STORE_DIR/ 
+
+      # copy asterix metadata root directory and txn log directory
+      if [ $index -eq 1 ];
+      then
+        $HADOOP_HOME/bin/hadoop fs -copyToLocal $HDFS_URL/$NODE_BACKUP_DIR/$ASTERIX_ROOT_METADATA_DIR $iodevice/
+
+        # copy transaction logs directory
+        $HADOOP_HOME/bin/hadoop fs -copyToLocal $HDFS_URL/$NODE_BACKUP_DIR/$TXN_LOG_DIR_NAME $iodevice/
+      fi
+
   else
-    echo "cp  -r $NODE_BACKUP_DIR/*  $DEST_DIR/" >> ~/restore.log
-    cp  -r $NODE_BACKUP_DIR/*  $DEST_DIR/ 
-    if [ $index -eq 1 ];
-    then
-      echo "cp -r $BACKUP_DIR/$ASTERIX_INSTANCE_NAME/$BACKUP_ID/$NODE_ID/$ASTERIX_ROOT_METADATA_DIR $iodevice/" >> ~/restore.log
-      cp -r $BACKUP_DIR/$ASTERIX_INSTANCE_NAME/$BACKUP_ID/$NODE_ID/$ASTERIX_ROOT_METADATA_DIR $iodevice/
-    fi
+
+      # RESTORE FROM LOCAL BACKUP
+      # copy store directory
+      cp  -r $NODE_BACKUP_DIR/$SOURCE_STORE_DIR  $DEST_STORE_DIR/ 
+
+      # copy asterix metadata root directory and txn log directory
+      if [ $index -eq 1 ];
+      then
+        cp -r $NODE_BACKUP_DIR/$ASTERIX_ROOT_METADATA_DIR $iodevice/
+
+        # copy transaction logs directory
+        cp -r $NODE_BACKUP_DIR/$TXN_LOG_DIR_NAME $iodevice/
+      fi
+
   fi
   index=`expr $index + 1`
 done
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
index 2f118c4..e2be142 100644
--- 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
@@ -54,6 +54,9 @@
 
 public class InstallerUtil {
 
+    public static final String TXN_LOG_DIR = "txnLogs";
+    public static final String TXN_LOG_DIR_KEY_SUFFIX = "txnLogDir";
+
     public static AsterixInstance createAsterixInstance(String asterixInstanceName, Cluster cluster)
             throws FileNotFoundException, IOException {
         Properties asterixConfProp = new Properties();
@@ -206,9 +209,9 @@
 
         for (Node node : cluster.getNode()) {
             String iodevices = node.getIodevices() == null ? cluster.getIodevices() : node.getIodevices();
-            String store = node.getStore() == null ? cluster.getStore() : node.getStore();
-            String txnLogDir = iodevices.split(",")[0].trim() + File.separator + store;
-            conf.append(asterixInstanceName + "_" + node.getId() + "." + "txnLogDir=" + txnLogDir + "\n");
+            String txnLogDir = iodevices.split(",")[0].trim() + File.separator + InstallerUtil.TXN_LOG_DIR;
+            conf.append(asterixInstanceName + "_" + node.getId() + "." + TXN_LOG_DIR_KEY_SUFFIX + "=" + txnLogDir
+                    + "\n");
         }
         dumpToFile(InstallerDriver.getAsterixDir() + File.separator + asterixInstanceName + File.separator
                 + "log.properties", conf.toString());
@@ -237,13 +240,13 @@
             int count;
             byte data[] = new byte[BUFFER_SIZE];
 
-            //write the file to the disk
+            // 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
+            // close the output streams
             dest.flush();
             dest.close();
         }
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
index 05a92f2..9cb1b96e 100644
--- 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
@@ -48,7 +48,7 @@
 			args.add(node.getClusterIp());
 			args.add(instance.getName() + "_" + node.getId());
 		}
-
+		Thread.sleep(2000);
 		String output = InstallerUtil.executeLocalScript(VERIFY_SCRIPT_PATH,
 				args);
 		boolean ccRunning = true;
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
index 2184a63..f6aeafe 100644
--- 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
@@ -32,6 +32,7 @@
 import edu.uci.ics.asterix.installer.command.BackupCommand;
 import edu.uci.ics.asterix.installer.command.StopCommand;
 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.model.AsterixInstance;
 import edu.uci.ics.asterix.installer.model.BackupInfo;
@@ -42,485 +43,412 @@
 
 public class PatternCreator {
 
-	private ILookupService lookupService = ServiceProvider.INSTANCE
-			.getLookupService();
+    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);
-	}
+    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().getClusterIp();
+    public Patterns getStartAsterixPattern(String asterixInstanceName, Cluster cluster) throws Exception {
+        String ccLocationId = cluster.getMasterNode().getId();
+        String ccLocationIp = cluster.getMasterNode().getClusterIp();
 
-		String destDir = cluster.getWorkingDir().getDir() + File.separator
-				+ "asterix";
-		List<Pattern> ps = new ArrayList<Pattern>();
+        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 copyHyracks = createCopyHyracksPattern(asterixInstanceName, cluster, ccLocationIp, destDir);
+        ps.add(copyHyracks);
 
-		Pattern createCC = createCCStartPattern(ccLocationId);
-		addInitialDelay(createCC, 2, "sec");
-		ps.add(createCC);
+        Pattern createCC = createCCStartPattern(ccLocationId);
+        addInitialDelay(createCC, 3, "sec");
+        ps.add(createCC);
 
-		boolean copyHyracksToNC = !cluster.getWorkingDir().isNFS();
-		for (Node node : cluster.getNode()) {
-			if (copyHyracksToNC) {
-				Pattern copyHyracksForNC = createCopyHyracksPattern(
-						asterixInstanceName, cluster, node.getClusterIp(),
-						destDir);
-				ps.add(copyHyracksForNC);
-			}
-			String iodevices = node.getIodevices() == null ? cluster
-					.getIodevices() : node.getIodevices();
-			Pattern createNC = createNCStartPattern(cluster.getMasterNode()
-					.getClusterIp(), node.getId(), asterixInstanceName + "_"
-					+ node.getId(), iodevices);
-			addInitialDelay(createNC, 4, "sec");
-			ps.add(createNC);
-		}
+        boolean copyHyracksToNC = !cluster.getWorkingDir().isNFS();
+        for (Node node : cluster.getNode()) {
+            if (copyHyracksToNC) {
+                Pattern copyHyracksForNC = createCopyHyracksPattern(asterixInstanceName, cluster, node.getClusterIp(),
+                        destDir);
+                ps.add(copyHyracksForNC);
+            }
+            String iodevices = node.getIodevices() == null ? cluster.getIodevices() : node.getIodevices();
+            Pattern createNC = createNCStartPattern(cluster.getMasterNode().getClusterIp(), node.getId(),
+                    asterixInstanceName + "_" + node.getId(), iodevices);
+            addInitialDelay(createNC, 5, "sec");
+            ps.add(createNC);
+        }
 
-		Patterns patterns = new Patterns(ps);
-		patterns.getPattern().addAll(
-				createHadoopLibraryTransferPattern(cluster).getPattern());
-		return patterns;
-	}
+        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();
+    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 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++;
-		}
+        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;
-	}
+        Patterns patterns = new Patterns(ps);
+        return patterns;
+    }
 
-	public Patterns getBackUpAsterixPattern(AsterixInstance instance,
-			Backup backupConf) throws Exception {
-		BackupType backupType = BackupInfo.getBackupType(backupConf);
-		Patterns patterns = null;
-		switch (backupType) {
-		case HDFS:
-			patterns = getHDFSBackUpAsterixPattern(instance, backupConf);
-			break;
-		case LOCAL:
-			patterns = getLocalBackUpAsterixPattern(instance, backupConf);
-			break;
-		}
-		return patterns;
-	}
+    public Patterns getBackUpAsterixPattern(AsterixInstance instance, Backup backupConf) throws Exception {
+        BackupType backupType = BackupInfo.getBackupType(backupConf);
+        Patterns patterns = null;
+        switch (backupType) {
+            case HDFS:
+                patterns = getHDFSBackUpAsterixPattern(instance, backupConf);
+                break;
+            case LOCAL:
+                patterns = getLocalBackUpAsterixPattern(instance, backupConf);
+                break;
+        }
+        return patterns;
+    }
 
-	public Patterns getRestoreAsterixPattern(AsterixInstance instance,
-			BackupInfo backupInfo) throws Exception {
-		BackupType backupType = backupInfo.getBackupType();
-		Patterns patterns = null;
-		switch (backupType) {
-		case HDFS:
-			patterns = getHDFSRestoreAsterixPattern(instance, backupInfo);
-			break;
-		case LOCAL:
-			patterns = getLocalRestoreAsterixPattern(instance, backupInfo);
-			break;
-		}
-		return patterns;
-	}
+    public Patterns getRestoreAsterixPattern(AsterixInstance instance, BackupInfo backupInfo) throws Exception {
+        BackupType backupType = backupInfo.getBackupType();
+        Patterns patterns = null;
+        switch (backupType) {
+            case HDFS:
+                patterns = getHDFSRestoreAsterixPattern(instance, backupInfo);
+                break;
+            case LOCAL:
+                patterns = getLocalRestoreAsterixPattern(instance, backupInfo);
+                break;
+        }
+        return patterns;
+    }
 
-	private Patterns getHDFSBackUpAsterixPattern(AsterixInstance instance,
-			Backup backupConf) throws Exception {
-		Cluster cluster = instance.getCluster();
-		String hdfsUrl = backupConf.getHdfs().getUrl();
-		String hadoopVersion = backupConf.getHdfs().getVersion();
-		String hdfsBackupDir = backupConf.getBackupDir();
-		VerificationUtil.verifyBackupRestoreConfiguration(hdfsUrl,
-				hadoopVersion, hdfsBackupDir);
-		String workingDir = cluster.getWorkingDir().getDir();
-		String backupId = "" + instance.getBackupInfo().size();
-		String store;
-		String pargs;
-		String iodevices;
-		List<Pattern> patternList = new ArrayList<Pattern>();
-		for (Node node : cluster.getNode()) {
-			Nodeid nodeid = new Nodeid(new Value(null, node.getId()));
-			iodevices = node.getIodevices() == null ? instance.getCluster()
-					.getIodevices() : node.getIodevices();
-			store = node.getStore() == null ? cluster.getStore() : node
-					.getStore();
-			pargs = workingDir + " " + instance.getName() + " " + iodevices
-					+ " " + store + " "
-					+ BackupCommand.ASTERIX_ROOT_METADATA_DIR + " " + backupId
-					+ " " + hdfsBackupDir + " " + "hdfs" + " " + node.getId()
-					+ " " + hdfsUrl + " " + hadoopVersion;
-			Event event = new Event("backup", nodeid, pargs);
-			patternList.add(new Pattern(null, 1, null, event));
-		}
-		return new Patterns(patternList);
-	}
+    private Patterns getHDFSBackUpAsterixPattern(AsterixInstance instance, Backup backupConf) throws Exception {
+        Cluster cluster = instance.getCluster();
+        String hdfsUrl = backupConf.getHdfs().getUrl();
+        String hadoopVersion = backupConf.getHdfs().getVersion();
+        String hdfsBackupDir = backupConf.getBackupDir();
+        VerificationUtil.verifyBackupRestoreConfiguration(hdfsUrl, hadoopVersion, hdfsBackupDir);
+        String workingDir = cluster.getWorkingDir().getDir();
+        String backupId = "" + instance.getBackupInfo().size();
+        String store;
+        String pargs;
+        String iodevices;
+        List<Pattern> patternList = new ArrayList<Pattern>();
+        for (Node node : cluster.getNode()) {
+            Nodeid nodeid = new Nodeid(new Value(null, node.getId()));
+            iodevices = node.getIodevices() == null ? instance.getCluster().getIodevices() : node.getIodevices();
+            store = node.getStore() == null ? cluster.getStore() : node.getStore();
+            pargs = workingDir + " " + instance.getName() + " " + iodevices + " " + store + " "
+                    + BackupCommand.ASTERIX_ROOT_METADATA_DIR + " " + InstallerUtil.TXN_LOG_DIR + " " + backupId + " "
+                    + hdfsBackupDir + " " + "hdfs" + " " + node.getId() + " " + hdfsUrl + " " + hadoopVersion;
+            Event event = new Event("backup", nodeid, pargs);
+            patternList.add(new Pattern(null, 1, null, event));
+        }
+        return new Patterns(patternList);
+    }
 
-	private Patterns getLocalBackUpAsterixPattern(AsterixInstance instance,
-			Backup backupConf) throws Exception {
-		Cluster cluster = instance.getCluster();
-		String backupDir = backupConf.getBackupDir();
-		String workingDir = cluster.getWorkingDir().getDir();
-		String backupId = "" + instance.getBackupInfo().size();
-		String iodevices;
-		String store;
-		String pargs;
-		List<Pattern> patternList = new ArrayList<Pattern>();
-		for (Node node : cluster.getNode()) {
-			Nodeid nodeid = new Nodeid(new Value(null, node.getId()));
-			iodevices = node.getIodevices() == null ? instance.getCluster()
-					.getIodevices() : node.getIodevices();
-			store = node.getStore() == null ? cluster.getStore() : node
-					.getStore();
-			pargs = workingDir + " " + instance.getName() + " " + iodevices
-					+ " " + store + " "
-					+ BackupCommand.ASTERIX_ROOT_METADATA_DIR + " " + backupId
-					+ " " + backupDir + " " + "local" + " " + node.getId();
-			Event event = new Event("backup", nodeid, pargs);
-			patternList.add(new Pattern(null, 1, null, event));
-		}
-		return new Patterns(patternList);
-	}
+    private Patterns getLocalBackUpAsterixPattern(AsterixInstance instance, Backup backupConf) throws Exception {
+        Cluster cluster = instance.getCluster();
+        String backupDir = backupConf.getBackupDir();
+        String workingDir = cluster.getWorkingDir().getDir();
+        String backupId = "" + instance.getBackupInfo().size();
+        String iodevices;
+        String store;
+        String pargs;
+        List<Pattern> patternList = new ArrayList<Pattern>();
+        for (Node node : cluster.getNode()) {
+            Nodeid nodeid = new Nodeid(new Value(null, node.getId()));
+            iodevices = node.getIodevices() == null ? instance.getCluster().getIodevices() : node.getIodevices();
+            store = node.getStore() == null ? cluster.getStore() : node.getStore();
+            pargs = workingDir + " " + instance.getName() + " " + iodevices + " " + store + " "
+                    + BackupCommand.ASTERIX_ROOT_METADATA_DIR + " " + InstallerUtil.TXN_LOG_DIR + " " + backupId + " "
+                    + backupDir + " " + "local" + " " + node.getId();
+            Event event = new Event("backup", nodeid, pargs);
+            patternList.add(new Pattern(null, 1, null, event));
+        }
+        return new Patterns(patternList);
+    }
 
-	public Patterns getHDFSRestoreAsterixPattern(AsterixInstance instance,
-			BackupInfo backupInfo) throws Exception {
-		Cluster cluster = instance.getCluster();
-		String clusterStore = instance.getCluster().getStore();
-		String hdfsUrl = backupInfo.getBackupConf().getHdfs().getUrl();
-		String hadoopVersion = backupInfo.getBackupConf().getHdfs()
-				.getVersion();
-		String hdfsBackupDir = backupInfo.getBackupConf().getBackupDir();
-		VerificationUtil.verifyBackupRestoreConfiguration(hdfsUrl,
-				hadoopVersion, hdfsBackupDir);
-		String workingDir = cluster.getWorkingDir().getDir();
-		int backupId = backupInfo.getId();
-		String nodeStore;
-		String pargs;
-		List<Pattern> patternList = new ArrayList<Pattern>();
-		for (Node node : cluster.getNode()) {
-			Nodeid nodeid = new Nodeid(new Value(null, node.getId()));
-			String iodevices = node.getIodevices() == null ? cluster
-					.getIodevices() : node.getIodevices();
-			nodeStore = node.getStore() == null ? clusterStore : node
-					.getStore();
-			pargs = workingDir + " " + instance.getName() + " " + iodevices
-					+ " " + nodeStore + " "
-					+ BackupCommand.ASTERIX_ROOT_METADATA_DIR + " " + backupId
-					+ " " + " " + hdfsBackupDir + " " + "hdfs" + " "
-					+ node.getId() + " " + hdfsUrl + " " + hadoopVersion;
-			Event event = new Event("restore", nodeid, pargs);
-			patternList.add(new Pattern(null, 1, null, event));
-		}
-		return new Patterns(patternList);
-	}
+    public Patterns getHDFSRestoreAsterixPattern(AsterixInstance instance, BackupInfo backupInfo) throws Exception {
+        Cluster cluster = instance.getCluster();
+        String clusterStore = instance.getCluster().getStore();
+        String hdfsUrl = backupInfo.getBackupConf().getHdfs().getUrl();
+        String hadoopVersion = backupInfo.getBackupConf().getHdfs().getVersion();
+        String hdfsBackupDir = backupInfo.getBackupConf().getBackupDir();
+        VerificationUtil.verifyBackupRestoreConfiguration(hdfsUrl, hadoopVersion, hdfsBackupDir);
+        String workingDir = cluster.getWorkingDir().getDir();
+        int backupId = backupInfo.getId();
+        String nodeStore;
+        String pargs;
+        List<Pattern> patternList = new ArrayList<Pattern>();
+        for (Node node : cluster.getNode()) {
+            Nodeid nodeid = new Nodeid(new Value(null, node.getId()));
+            String iodevices = node.getIodevices() == null ? cluster.getIodevices() : node.getIodevices();
+            nodeStore = node.getStore() == null ? clusterStore : node.getStore();
+            pargs = workingDir + " " + instance.getName() + " " + iodevices + " " + nodeStore + " "
+                    + BackupCommand.ASTERIX_ROOT_METADATA_DIR + " " + InstallerUtil.TXN_LOG_DIR + " " + backupId + " "
+                    + " " + hdfsBackupDir + " " + "hdfs" + " " + node.getId() + " " + hdfsUrl + " " + hadoopVersion;
+            Event event = new Event("restore", nodeid, pargs);
+            patternList.add(new Pattern(null, 1, null, event));
+        }
+        return new Patterns(patternList);
+    }
 
-	public Patterns getLocalRestoreAsterixPattern(AsterixInstance instance,
-			BackupInfo backupInfo) throws Exception {
-		Cluster cluster = instance.getCluster();
-		String clusterStore = instance.getCluster().getStore();
-		String backupDir = backupInfo.getBackupConf().getBackupDir();
-		String workingDir = cluster.getWorkingDir().getDir();
-		int backupId = backupInfo.getId();
-		String nodeStore;
-		String pargs;
-		List<Pattern> patternList = new ArrayList<Pattern>();
-		for (Node node : cluster.getNode()) {
-			Nodeid nodeid = new Nodeid(new Value(null, node.getId()));
-			String iodevices = node.getIodevices() == null ? cluster
-					.getIodevices() : node.getIodevices();
-			nodeStore = node.getStore() == null ? clusterStore : node
-					.getStore();
-			pargs = workingDir + " " + instance.getName() + " " + iodevices
-					+ " " + nodeStore + " "
-					+ BackupCommand.ASTERIX_ROOT_METADATA_DIR + " " + backupId
-					+ " " + backupDir + " " + "local" + " " + node.getId();
-			Event event = new Event("restore", nodeid, pargs);
-			patternList.add(new Pattern(null, 1, null, event));
-		}
-		return new Patterns(patternList);
-	}
+    public Patterns getLocalRestoreAsterixPattern(AsterixInstance instance, BackupInfo backupInfo) throws Exception {
+        Cluster cluster = instance.getCluster();
+        String clusterStore = instance.getCluster().getStore();
+        String backupDir = backupInfo.getBackupConf().getBackupDir();
+        String workingDir = cluster.getWorkingDir().getDir();
+        int backupId = backupInfo.getId();
+        String nodeStore;
+        String pargs;
+        List<Pattern> patternList = new ArrayList<Pattern>();
+        for (Node node : cluster.getNode()) {
+            Nodeid nodeid = new Nodeid(new Value(null, node.getId()));
+            String iodevices = node.getIodevices() == null ? cluster.getIodevices() : node.getIodevices();
+            nodeStore = node.getStore() == null ? clusterStore : node.getStore();
+            pargs = workingDir + " " + instance.getName() + " " + iodevices + " " + nodeStore + " "
+                    + BackupCommand.ASTERIX_ROOT_METADATA_DIR + " " + InstallerUtil.TXN_LOG_DIR + " " + backupId + " "
+                    + backupDir + " " + "local" + " " + 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");
-		}
+    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().getClusterIp() + " " + workingDir;
-		Event event = new Event("directory_transfer", nodeid, pargs);
-		Pattern p = new Pattern(null, 1, null, event);
-		addInitialDelay(p, 2, "sec");
-		patternList.add(p);
+        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().getClusterIp()
+                + " " + 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.getClusterIp() + " " + 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;
-	}
+        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.getClusterIp() + " "
+                        + 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) {
-			List<BackupInfo> backups = instance.getBackupInfo();
-			Set<String> removedBackupDirsHDFS = new HashSet<String>();
-			Set<String> removedBackupDirsLocal = new HashSet<String>();
+    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) {
+            List<BackupInfo> backups = instance.getBackupInfo();
+            Set<String> removedBackupDirsHDFS = new HashSet<String>();
+            Set<String> removedBackupDirsLocal = new HashSet<String>();
 
-			String backupDir;
-			for (BackupInfo binfo : backups) {
-				backupDir = binfo.getBackupConf().getBackupDir();
-				switch (binfo.getBackupType()) {
-				case HDFS:
-					if (removedBackupDirsHDFS.contains(backups)) {
-						continue;
-					}
-					patternList.addAll(createRemoveHDFSBackupPattern(instance,
-							backupDir).getPattern());
-					removedBackupDirsHDFS.add(backupDir);
-					break;
+            String backupDir;
+            for (BackupInfo binfo : backups) {
+                backupDir = binfo.getBackupConf().getBackupDir();
+                switch (binfo.getBackupType()) {
+                    case HDFS:
+                        if (removedBackupDirsHDFS.contains(backups)) {
+                            continue;
+                        }
+                        patternList.addAll(createRemoveHDFSBackupPattern(instance, backupDir).getPattern());
+                        removedBackupDirsHDFS.add(backupDir);
+                        break;
 
-				case LOCAL:
-					if (removedBackupDirsLocal.contains(backups)) {
-						continue;
-					}
-					patternList.addAll(createRemoveLocalBackupPattern(instance,
-							backupDir).getPattern());
-					removedBackupDirsLocal.add(backupDir);
-					break;
-				}
+                    case LOCAL:
+                        if (removedBackupDirsLocal.contains(backups)) {
+                            continue;
+                        }
+                        patternList.addAll(createRemoveLocalBackupPattern(instance, backupDir).getPattern());
+                        removedBackupDirsLocal.add(backupDir);
+                        break;
+                }
 
-			}
-		}
-		patternList.addAll(createRemoveAsterixLogDirPattern(instance)
-				.getPattern());
-		patternList.addAll(createRemoveAsterixRootMetadata(instance)
-				.getPattern());
-		Patterns patterns = new Patterns(patternList);
-		return patterns;
-	}
+            }
+        }
+        patternList.addAll(createRemoveAsterixLogDirPattern(instance).getPattern());
+        patternList.addAll(createRemoveAsterixRootMetadata(instance).getPattern());
+        Patterns patterns = new Patterns(patternList);
+        return patterns;
+    }
 
-	private Patterns createRemoveHDFSBackupPattern(AsterixInstance instance,
-			String hdfsBackupDir) 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 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 createRemoveHDFSBackupPattern(AsterixInstance instance, String hdfsBackupDir) 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 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 createRemoveLocalBackupPattern(AsterixInstance instance,
-			String localBackupDir) throws Exception {
-		List<Pattern> patternList = new ArrayList<Pattern>();
-		Cluster cluster = instance.getCluster();
+    private Patterns createRemoveLocalBackupPattern(AsterixInstance instance, String localBackupDir) throws Exception {
+        List<Pattern> patternList = new ArrayList<Pattern>();
+        Cluster cluster = instance.getCluster();
 
-		String pathToDelete = localBackupDir + File.separator
-				+ instance.getName();
-		String pargs = pathToDelete;
-		List<String> removedBackupDirs = new ArrayList<String>();
-		for (Node node : cluster.getNode()) {
-			if (removedBackupDirs.contains(node.getClusterIp())) {
-				continue;
-			}
-			Nodeid nodeid = new Nodeid(new Value(null, node.getId()));
-			Event event = new Event("file_delete", nodeid, pargs);
-			patternList.add(new Pattern(null, 1, null, event));
-			removedBackupDirs.add(node.getClusterIp());
-		}
+        String pathToDelete = localBackupDir + File.separator + instance.getName();
+        String pargs = pathToDelete;
+        List<String> removedBackupDirs = new ArrayList<String>();
+        for (Node node : cluster.getNode()) {
+            if (removedBackupDirs.contains(node.getClusterIp())) {
+                continue;
+            }
+            Nodeid nodeid = new Nodeid(new Value(null, node.getId()));
+            Event event = new Event("file_delete", nodeid, pargs);
+            patternList.add(new Pattern(null, 1, null, event));
+            removedBackupDirs.add(node.getClusterIp());
+        }
 
-		Patterns patterns = new Patterns(patternList);
-		return patterns;
-	}
+        Patterns patterns = new Patterns(patternList);
+        return patterns;
+    }
 
-	public Patterns createRemoveAsterixWorkingDirPattern(
-			AsterixInstance instance) throws Exception {
-		List<Pattern> patternList = new ArrayList<Pattern>();
-		Cluster cluster = instance.getCluster();
-		String workingDir = cluster.getWorkingDir().getDir();
-		String pargs = workingDir;
-		Nodeid nodeid = new Nodeid(new Value(null, cluster.getMasterNode()
-				.getId()));
-		Event event = new Event("file_delete", nodeid, pargs);
-		patternList.add(new Pattern(null, 1, null, event));
+    public Patterns createRemoveAsterixWorkingDirPattern(AsterixInstance instance) throws Exception {
+        List<Pattern> patternList = new ArrayList<Pattern>();
+        Cluster cluster = instance.getCluster();
+        String workingDir = cluster.getWorkingDir().getDir();
+        String pargs = workingDir;
+        Nodeid nodeid = new Nodeid(new Value(null, cluster.getMasterNode().getId()));
+        Event event = new Event("file_delete", nodeid, pargs);
+        patternList.add(new Pattern(null, 1, null, event));
 
-		if (!cluster.getWorkingDir().isNFS()) {
-			for (Node node : cluster.getNode()) {
-				nodeid = new Nodeid(new Value(null, node.getId()));
-				event = new Event("file_delete", nodeid, pargs);
-				patternList.add(new Pattern(null, 1, null, event));
-			}
-		}
-		Patterns patterns = new Patterns(patternList);
-		return patterns;
-	}
+        if (!cluster.getWorkingDir().isNFS()) {
+            for (Node node : cluster.getNode()) {
+                nodeid = new Nodeid(new Value(null, node.getId()));
+                event = new Event("file_delete", nodeid, pargs);
+                patternList.add(new Pattern(null, 1, null, event));
+            }
+        }
+        Patterns patterns = new Patterns(patternList);
+        return patterns;
+    }
 
-	private Patterns createRemoveAsterixRootMetadata(AsterixInstance instance)
-			throws Exception {
-		List<Pattern> patternList = new ArrayList<Pattern>();
-		Cluster cluster = instance.getCluster();
-		Nodeid nodeid = null;
-		String pargs = null;
-		Event event = null;
-		for (Node node : cluster.getNode()) {
-			String iodevices = node.getIodevices() == null ? cluster
-					.getIodevices() : node.getIodevices();
-			String primaryIODevice = iodevices.split(",")[0].trim();
-			pargs = primaryIODevice + File.separator
-					+ BackupCommand.ASTERIX_ROOT_METADATA_DIR;
-			nodeid = new Nodeid(new Value(null, node.getId()));
-			event = new Event("file_delete", nodeid, pargs);
-			patternList.add(new Pattern(null, 1, null, event));
-		}
+    private Patterns createRemoveAsterixRootMetadata(AsterixInstance instance) throws Exception {
+        List<Pattern> patternList = new ArrayList<Pattern>();
+        Cluster cluster = instance.getCluster();
+        Nodeid nodeid = null;
+        String pargs = null;
+        Event event = null;
+        for (Node node : cluster.getNode()) {
+            String iodevices = node.getIodevices() == null ? cluster.getIodevices() : node.getIodevices();
+            String primaryIODevice = iodevices.split(",")[0].trim();
+            pargs = primaryIODevice + File.separator + BackupCommand.ASTERIX_ROOT_METADATA_DIR;
+            nodeid = new Nodeid(new Value(null, node.getId()));
+            event = new Event("file_delete", nodeid, pargs);
+            patternList.add(new Pattern(null, 1, null, event));
+        }
 
-		Patterns patterns = new Patterns(patternList);
-		return patterns;
-	}
+        Patterns patterns = new Patterns(patternList);
+        return patterns;
+    }
 
-	private Patterns createRemoveAsterixLogDirPattern(AsterixInstance instance)
-			throws Exception {
-		List<Pattern> patternList = new ArrayList<Pattern>();
-		Cluster cluster = instance.getCluster();
-		String pargs = instance.getCluster().getLogdir();
-		Nodeid nodeid = new Nodeid(new Value(null, cluster.getMasterNode()
-				.getId()));
-		Event event = new Event("file_delete", nodeid, pargs);
-		patternList.add(new Pattern(null, 1, null, event));
+    private Patterns createRemoveAsterixLogDirPattern(AsterixInstance instance) throws Exception {
+        List<Pattern> patternList = new ArrayList<Pattern>();
+        Cluster cluster = instance.getCluster();
+        String pargs = instance.getCluster().getLogdir();
+        Nodeid nodeid = new Nodeid(new Value(null, cluster.getMasterNode().getId()));
+        Event event = new Event("file_delete", nodeid, pargs);
+        patternList.add(new Pattern(null, 1, null, event));
 
-		for (Node node : cluster.getNode()) {
-			nodeid = new Nodeid(new Value(null, node.getId()));
-			event = new Event("file_delete", nodeid, pargs);
-			patternList.add(new Pattern(null, 1, null, event));
-		}
+        for (Node node : cluster.getNode()) {
+            nodeid = new Nodeid(new Value(null, node.getId()));
+            event = new Event("file_delete", nodeid, pargs);
+            patternList.add(new Pattern(null, 1, null, event));
+        }
 
-		Patterns patterns = new Patterns(patternList);
-		return patterns;
-	}
+        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;
+    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[] nodeIODevices;
-			String iodevices = node.getIodevices() == null ? cluster
-					.getIodevices() : node.getIodevices();
-			nodeIODevices = iodevices.trim().split(",");
-			for (String nodeIODevice : nodeIODevices) {
-				String nodeStore = node.getStore() == null ? cluster.getStore()
-						: node.getStore();
-				pargs = nodeIODevice.trim() + File.separator + nodeStore;
-				Event event = new Event("file_delete", nodeid, pargs);
-				patternList.add(new Pattern(null, 1, null, event));
-			}
-		}
-		Patterns patterns = new Patterns(patternList);
-		return patterns;
-	}
+        for (Node node : cluster.getNode()) {
+            Nodeid nodeid = new Nodeid(new Value(null, node.getId()));
+            String[] nodeIODevices;
+            String iodevices = node.getIodevices() == null ? cluster.getIodevices() : node.getIodevices();
+            nodeIODevices = iodevices.trim().split(",");
+            for (String nodeIODevice : nodeIODevices) {
+                String nodeStore = node.getStore() == null ? cluster.getStore() : node.getStore();
+                pargs = nodeIODevice.trim() + File.separator + nodeStore;
+                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 = new File(InstallerDriver.getAsterixDir()
-				+ File.separator + instanceName + File.separator
-				+ asterixZipName).getAbsolutePath();
-		String pargs = username + " " + fileToTransfer + " " + destinationIp
-				+ " " + destDir + " " + "unpack";
-		Event event = new Event("file_transfer", nodeid, pargs);
-		return new Pattern(null, 1, null, event);
-	}
+    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 = new File(InstallerDriver.getAsterixDir() + File.separator + instanceName
+                + File.separator + asterixZipName).getAbsolutePath();
+        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);
-	}
+    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 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, String iodevices) {
-		Nodeid nodeid = new Nodeid(new Value(null, hostId));
-		String pargs = ccHost + " " + nodeControllerId + " " + iodevices;
-		Event event = new Event("node_join", nodeid, pargs);
-		return new Pattern(null, 1, null, event);
-	}
+    public Pattern createNCStartPattern(String ccHost, String hostId, String nodeControllerId, String iodevices) {
+        Nodeid nodeid = new Nodeid(new Value(null, hostId));
+        String pargs = ccHost + " " + nodeControllerId + " " + iodevices;
+        Event event = new Event("node_join", nodeid, pargs);
+        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);
-	}
+    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/resources/clusters/local/local.xml b/asterix-installer/src/main/resources/clusters/local/local.xml
index b6589d0..d397bcd 100644
--- a/asterix-installer/src/main/resources/clusters/local/local.xml
+++ b/asterix-installer/src/main/resources/clusters/local/local.xml
@@ -8,7 +8,7 @@
   <iodevices>/tmp</iodevices>
   <store>asterix/storage</store>
   <java_home></java_home>
-  <java_heap>1024m</java_heap>
+  <java_opts>-Xmx1024m</java_opts>
   <master-node>
     <id>master</id>
     <client-ip>127.0.0.1</client-ip>
diff --git a/asterix-installer/src/main/resources/zookeeper/stop_zk b/asterix-installer/src/main/resources/zookeeper/stop_zk
index d8615d9..9bef86e 100755
--- a/asterix-installer/src/main/resources/zookeeper/stop_zk
+++ b/asterix-installer/src/main/resources/zookeeper/stop_zk
@@ -2,5 +2,5 @@
 shift 1
 for zk_host in  $@
 do
-  ssh $zk_host "kill -9 `jps | grep QuorumPeerMain | cut -d " "  -f1`" &
+  ssh $zk_host "kill -15 `jps | grep QuorumPeerMain | cut -d " "  -f1`" &
 done