Hi. We are planning on using clustering to cluster a Topic. There are 2 different MDBs that subscribe to this topic. The deployment we are trying to use, we have topic on mulitiple nodes and MDBs on all the nodes. We would like the message delivery to happen to one of the MDB instances of bot types in the cluster. The behavior we are getting is that message is delivered on all the topics and all of MDBs recieve the messages Is there anyway to achieve only single delivery to MDB across the cluster? Thanks View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4115616#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...