We are running a two node cluster on Windows servers. JBoss is running as a service - using JavaService. We have now noticed, that when the the server is shutdown from the service interface (effectively calling System.exit(0) via org.jboss.Main systemExit), the serverpeerid/nodeid is still visible in NodeIDView in jboss.messaging PostOffice in the jmx-console. The effect of this is that we get an error (saying that there is already a post office in the cluster with the same node id), when restarting the node. When we call shutdown from the command line, everything seems to work fine. Is this a known problem, and is there a known solution? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4172500#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...