I ran tests with Buddy Replication on in jboss-web-cluster.sar. The jboss-service.xml used here is exactly same as that of EAP which is repeatable_read, repl_async and buddy replication on. Configuration of hibernate/jboss cache clustering remain unchanged with pessimistic, read committe and invallidaton synch. Results are similar to previous result upto 3 nodes. With 4 nodes I get better number, previously it was 3800 users, now it's 4400. But with 5 nodes, it's back to what I get previously. | Node Users | 1 1400 | 2 2800 | 3 3900 | 4 4400 | 5 2800 | What I would like to mention though that the cluster name, mcast_addr, port parameters are different in jboss-service.xml in web-cluster.sar and portal.sar. Do they need to use same cluster config? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4169128#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...