That doesn't guarantee durability on your persistent messages. What if someone pull of the energy plug, kill -9 or a VM Crash? Shutdown is actually the safest of all of these events. It's simple.. or you can afford loosing messages, on which case you simply use NonPersistentMessages, or you can't.. on which case you *need* to persist them on the DB. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4208785#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...