Sure, HA-JNDI will work on a sinlge node cluster, although realistically you wouldn't do that. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3962750#3962750 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3962750