"manik.surtani(a)jboss.com" wrote : If you removed your sleep time, chances of success are higher, but there will still be that race condition. This is expected since cluster-wide locks are not obtained when you read your node using a cache.get(). Thanks! But how can I obtain cluster-wide locks when modifying data inside the cache? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3989740#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...