The messages you are seeing are not related to the channel created in cluster-service.xml. If you have EJB3 in your AS config, there are typically 4 channels created: cluster-service.xml tc5-cluster.sar/META-INF/jboss-service.xml (in 4.2 now called jboss-web-cluster.sar) ejb3-clustered-sfsbcache-service.xml ejb3-entity-cache-service.xml The WARN you report is related to the last one. They all need to be properly isolated. In AS 5, this will be easier, since by default all four of these services will share a single channel. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4063089#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...