If I understand correctly, you need to set slowConsumer=true on the ConnectionFactory used by the MDB. You probably don't want any buffer on the client, as you want the message to be round robbed to other servers. It' s a bit obscure what you are trying to achieve here.. so I' m suggesting that based on what I understood. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4247356#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...