Our JBoss server in production became very slow so we had to bounce it. But we were able to get some important information. We found this kind of messages in our log file May 29, 01:25:41 WARN [arjLoggerI18N] [com.arjuna.ats.arjuna.coordinator.BasicAction_58] - Abort of action id ad7d147:95eb:4a1f69f5:7f4 invoked while multiple threads active within it. May 29, 01:25:41 WARN [arjLoggerI18N] [com.arjuna.ats.arjuna.coordinator.CheckedAction_2] - CheckedAction::check - atomic action ad7d147:95eb:4a1f69f5:7f4 aborting with 1 threads active! Also we found out that "JMS SessionPool " thread went very high along with the Worker Thread. Please help. Thanks, Pratim View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4234042#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...