Actually, I should provide some more information here. The example *-persistence-service.xml files that come with JBoss Messaging and with JBossAS 5.0 all have "Clustered" set to "true" and contain clustering information. I predict that if the *-persistence-service.xml files remain as they are, that this topic will be repeated quite often once 5.0 goes GA. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4174333#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...