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