In terms of performance, many JMS implementations don't use relational DBs but use local storage. Some do "buddy replication" over the network, and require no disks for "persistence". These probably would out-perform your solution. Anyway, by the time you finished your custom solution, it's likely JBoss Messaging 1.2 with full clustering would be out. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4008026#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...