Re-syncing is pretty tough and very application-dependent. If you are caching data that can be retrieved externally or recalculated externally, then your best bet is to simply wipe the cache and start again. Otherwise, you could pick one instance as the "correct" version, and shut down and restart all other caches in the cluster so they wipe their "incorrect" state and retrieve state from the one correct instance. Anything beyond these two simplistic approaches will involve actually understanding what is in your state and perhaps attempting to merge and consolidate the data manually. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4197106#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...