You need a shared database to guarantee delivery of persistent messages during failover, but if you don't have persistent messages, you should not have a problem. On our examples, with our distribution, you will find several -persistence-service.xml. Look at null-persistence-service.xml. Just replace that by the current -persistence.service.xml under your deployment. Note: Even with Non Persistent Messages, we could still persist them if you produce more messages than you could consume (Paging). Make sure you are consuming your messages properly. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4158864#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...