diff --git a/pregelix/pregelix-dist/src/main/resources/conf/cluster.properties b/pregelix/pregelix-dist/src/main/resources/conf/cluster.properties
index f5d12a1..cac0aa5 100644
--- a/pregelix/pregelix-dist/src/main/resources/conf/cluster.properties
+++ b/pregelix/pregelix-dist/src/main/resources/conf/cluster.properties
@@ -40,11 +40,11 @@
 FRAME_SIZE=65536
 
 #CC JAVA_OPTS
-CCJAVA_OPTS="-Xmx1g -Djava.util.logging.config.file=logging.properties"
-# debug option: CCJAVA_OPTS="-Xdebug -Xrunjdwp:transport=dt_socket,address=7001,server=y,suspend=n -Xmx1g -Djava.util.logging.config.file=logging.properties"
+CCJAVA_OPTS="-Djava.util.logging.config.file=logging.properties"
+# debug option: CCJAVA_OPTS="-Xdebug -Xrunjdwp:transport=dt_socket,address=7001,server=y,suspend=n -Djava.util.logging.config.file=logging.properties"
 # Yourkit option: -agentpath:/grid/0/dev/vborkar/tools/yjp-10.0.4/bin/linux-x86-64/libyjpagent.so=port=20001"
 
 #NC JAVA_OPTS
-NCJAVA_OPTS="-Xmx1g -Djava.util.logging.config.file=logging.properties"
-# debug option: NCJAVA_OPTS="-Xdebug -Xrunjdwp:transport=dt_socket,address=7002,server=y,suspend=n -Xmx1g -Djava.util.logging.config.file=logging.properties"
+NCJAVA_OPTS="-Djava.util.logging.config.file=logging.properties"
+# debug option: NCJAVA_OPTS="-Xdebug -Xrunjdwp:transport=dt_socket,address=7002,server=y,suspend=n -Djava.util.logging.config.file=logging.properties"
 # Yourkit option: -agentpath:/grid/0/dev/vborkar/tools/yjp-10.0.4/bin/linux-x86-64/libyjpagent.so=port=20001"