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
index 04c6333..0157f65 100644
--- 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
@@ -51,7 +51,8 @@
                     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());
+                    String val = "\"" + "-Xmx"
+                            + (node.getJavaHeap() == null ? cluster.getJavaHeap() : node.getJavaHeap());
                     if (node.getDebug() != null) {
                         val = val + " " + "-Xdebug -Xrunjdwp:transport=dt_socket,address=" + node.getDebug().intValue()
                                 + "," + "server=y,suspend=n";
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
index e3de560..bf31e9f 100644
--- 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
@@ -181,8 +181,8 @@
 		}
 
 		if (nodeid.equals(cluster.getMasterNode().getId())) {
-			String ram = cluster.getMasterNode().getRam() == null ? cluster
-					.getRam() : cluster.getMasterNode().getRam();
+			String ram = cluster.getMasterNode().getJavaHeap() == null ? cluster
+					.getJavaHeap() : cluster.getMasterNode().getJavaHeap();
 			String logDir = cluster.getMasterNode().getLogdir() == null ? cluster
 					.getLogdir() : cluster.getMasterNode().getLogdir();
 			String javaHome = cluster.getMasterNode().getJavaHome() == null ? cluster
diff --git a/asterix-events/src/main/resources/schema/cluster.xsd b/asterix-events/src/main/resources/schema/cluster.xsd
index eaf343d..38afda3 100644
--- a/asterix-events/src/main/resources/schema/cluster.xsd
+++ b/asterix-events/src/main/resources/schema/cluster.xsd
@@ -3,7 +3,7 @@
 
 <!-- definition of simple types --> 
 <xs:element name="name" type="xs:string"/>
-<xs:element name="ram" type="xs:string"/>
+<xs:element name="java_heap" type="xs:string"/>
 <xs:element name="logdir" type="xs:string"/>
 <xs:element name="id" type="xs:string"/>
 <xs:element name="ip" type="xs:string"/>
@@ -34,7 +34,7 @@
       <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:java_heap" minOccurs="0"/>
       <xs:element ref="cl:logdir" minOccurs="0"/>
       <xs:element ref="cl:debug" minOccurs="0"/>
     </xs:sequence>
@@ -63,7 +63,7 @@
     <xs:sequence>
       <xs:element ref="cl:id"/>
       <xs:element ref="cl:ip"/>
-      <xs:element ref="cl:ram" minOccurs="0"/>
+      <xs:element ref="cl:java_heap" minOccurs="0"/>
       <xs:element ref="cl:java_home" minOccurs="0"/>
       <xs:element ref="cl:logdir" minOccurs="0"/>
       <xs:element ref="cl:store" minOccurs="0"/>
@@ -78,7 +78,7 @@
       <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_heap" minOccurs="0"/>
       <xs:element ref="cl:java_home" minOccurs="0"/>
       <xs:element ref="cl:logdir" minOccurs="0"/>
       <xs:element ref="cl:store" minOccurs="0"/>