forgot to mention that we use two Jboss servers in cluster and JBoss messaging database in Oracle 10g. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4232071#4232071 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4232071