Apparently I started one of my nodes the first time before I set the clustered flag in the queue definition because when I looked at the jbm_postoffice records one node had clustered set to false. By deleting the records then restarting the queue is set to clustered and it appears that everything is working as expected. I guess changing that flag after a queue has been established does not have any effect. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4106521#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...