Try with just setting flushmode to manual (no transaction attribute stuff). If you still see a flush when the conversation times out, then post back. Why? Certain parties to the EJB3 spec wouldn't even allow flushmode manual to exist (its a hibernate extension) let alone be the default (people are too used to working with stateless architectures) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4112928#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...