The cluster-service.xml file does not affect your tree cache in any way. Completely unrelated. But, changing that one as well was good :-) The tree cache you're using for the shared data must have a config file as well. (Unless you're configuring everything programatically, in which case I'd say use a config file.) You need to apply the FD/FD_SOCK change to that file. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3968934#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...