Try , to set in run.conf the following variable JAVA_OPTS="-Xms384m -Xmx384m" View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4178815#4178815 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4178815