anonymous wrote : Can you elaborate more why you need different files for messages and message references? I found it hard to understand from your wiki. | I'll reformulate the WIKI, but let me explain this part here. - Say you have one Address with 10 Messages: Msg1, 2, 3, 4, 5, 6, 7, 8, 9, 10 - You have two consumers on that Binding. One of them consumed messages 1,2 and 3, the other one consumer 4, 5 and 6. Now the first consumer rolled back the ACKs while the second consumer committed the messages: After these two Consumers operation, the Binding Queue will have: Msg1,2,3, 7, 8, 9 (4,5 and 6 are gone) While another Binding of the same address could still have: Msg 1,2,3,4,5,6,7,8,9,10 so... because of that we will need the references on a separated data structure. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4168520#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...