So, in essence there is no way to control the transaction timeout for an MDB unless you change the global transaction timeout? If that's true, I would consider it a fairly serious flaw in JBoss. A work around involving new threads won't help me much since it's essential that the popping of the queue must is synchronized with the many inserts that causes the timeout. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3960594#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...