Data gravitation takes place on a per-node level (and by node, I mean a node in the cache's tree structure such as /testRegion). Since both servers in your case (what you call NodeA and NodeB) are putting things in the same tree node in the cache (/testRegion) you have a problem. Each server should use a different FQN such as /testRegion/ServerA and /testRegion/ServerB Also, if you have only 2 servers, don't waste your time with buddy replication - you will find that total, synchronous replication is more efficient. The benefits of BR is only seen in larger clusters. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4199232#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...