Also if it were GC would all messages get stuck, the behaviour were seeing is say messages 1-3 are process perfectly, message 4 gets stuck, messages 5-9 are received later and are processed. My problem is over 900 messages were stuck, and only 450 of those could have been on local queues, so all servers must have ran into the GC problem at the same time View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4135590#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...