Thanks Eckenfels, I am looking for parallism for message processing, but to achive it I have to make concern on all factors like hoewmnay queues for this 300 cutomers and how many MDBs etc....... This architecutre rigth now looking very complex to me as I am feeling that I have to look on lot of factors........................... View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4206061#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...