Yes, we are running inside JBossAS. It seems that nodes/atributes in both servers are very different. Don't understand, as they should be very close to each other, as we have initial state transfer, and a whole day has passed by, so nodes not transferred should have been evicted. Machine-1: Number of nodes: 16609 Number of attributes: 408866 Old Memory: 1369195680 MB Time since reset: 189362 seconds Machine-2: Number of nodes: 28446 Number of attributes: 450500 Old memory: 1036104896 MB Time since reset: 84834 seconds Machine 1 has less nodes, more memory consummed. I have posted another thing that I have seen in the logs http://www.jboss.com/index.html?module=bb&op=viewtopic&t=138158. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4160796#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...