When I have 2 nodes (node1, node2), and a session which is created on node1 (and replicated to node2), the following can happen: * I shut down node1 (CTRL-C) * node1 terminates cleanly * I access the webapp, but get a "Session temporarily unavailable" failure message (I guess a 500) * When I check mod-cluster-manager, information about node1 is still there ! * Ca 5 seconds later, mod-cluster-manager doesn't show node1 anymore * When I now access the webapp, I get the proper failed over session on node2 and all my data is still there So my question is why doesn't node2 immediately tell httpd/mod-cluster that node1 is gone ? It seems that httpd *itself* only learns about this when it pings the socket to node1... I recall Paul once telling me we hadn't implemented that functionality, but I guess by now this is surely implemented ? -- Bela Ban Lead JGroups / Clustering Team JBoss