Thank you for the answer. I have one problematic scenario. There're two instances in my clustered environment: "serverA" and "serverB", at the beginning both of them are alive. step 1. shutdown the "serverA" step 2. make a change in "serverB". step 3. shutdown the "serverB" step 4. start the "serverA" step 5. start the "serverB". The problem is that a change in step 2 was lost. Is there any solution here? Victor. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3994484#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...