Created attachment 28003 [details] server.xml with cluster config for node 1 I used the same cluster configuration to establish a cluster with static membership under tomcat 6.0 and 7.0. The configuration works fine under 6.0.33, but under 7.0.22 and 7.0.23 it appears that membership cannot be established; on all nodes I receive the following message for my distributed webapp: org.apache.catalina.ha.session.DeltaManager startInternal INFO: Register manager localhost#/petcare to cluster element Engine with name Catalina org.apache.catalina.ha.session.DeltaManager startInternal INFO: Starting clustering manager at localhost#/petcare org.apache.catalina.ha.session.DeltaManager getAllClusterSessions INFO: Manager [localhost#/petcare]: skipping state transfer. No members active in cluster group. There are no errors or warnings; it seems the cluster just isn't formed. I'm attaching a server.xml for one node (others are copies with obvious modifications).
Created attachment 28146 [details] Working static cluster config I just tested this with the latest 7.0.x code and as close to your server.xml as I can replicate and I see no issues since this works for me (confirmed by using the manager app to view replicated sessions). The Tomcat users list is the place to follow this up. Possible areas to investigate: - the use of autobind. I'd disable this. - network issues For completeness, I have included the server.xml from one of my cluster nodes.