Thanks for the info. Yes, we would like to have the timer thread (servlet) running on each machine in the cluster. It seems like the simplest approach. When you say we will be in trouble doing this, are you doing so in the context of 3.2? It looks like the issue is being addressed in JobExecutorThread. acquireJobs() using Hibernate and transactional locking, but we would like to be certain. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4009448#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...