I think I understand you advise, but i doubt whether this appoach synchronize data between JVMs that use same node if none of them is a coordinator? Example of JVMs and nodes that they use Coordinaror JVM /UK /UK/Cardiff /UK/London /UK/Bristol /Spain /Spain/Madrid /Spain/Barselona JVM1: /Spain /Spain/Madrid JVM2: /UK/Bristol /UK JVM3: /UK/Cardiff /UK JVM4: /Spain /Spain/Barselona So, when JVM3 changes a leaf of /UK, the instance of JBC must propagate changes to JVM2 and to coordinator immediately. As far as I see from the source code TcpDelegatingCLassloader will send changes only to coordinator JVM node through CacheServer. And does this TCPDelegatingCacheLoader make use of UDP and multicasting? My problem is that I am trying to cluster a TreeCache between JVMs on the LAN. But I do not want to share the entire tree between all members of the cluster in order to reduce traffic. The configuration I expect to exist is like this For coordinator JVM <clustering mode="replication" clusterName="MySmartCluster" coordinatorNode="true"> For JVM1 <clustering mode="replication" clusterName="MySmartCluster" coordinatorNode="false"> | <fgnlist> | <fqn>/Spain</fqn> | <fqn>/Spain/Madrid</fqn> | </fqnlist> Etc. I think my question is clear. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4202920#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...