Clebert, Did you have a chance to check my Jira? I believe there's a clustering/failover issue: when some connections attached to live server fail, the backup node will kick-off and you will have the pair live/backup broadcasting the same node id. Beside when trying JBM2 with a limited number of queues (like 5) things works good and when increasing the number of queues (100ds) the system doesnt behave properly. Any ideas how can I resolve the connection failure issue? Thanks, Abdel View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4246767#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...