We have a test-segment and a production segment with various JBoss 5 clusters on it. In test there is nothing wrong but in production clustering was not working (in the server.log we see on all the nodes that the cluster can only see itself as a node). Application settings are exactly the same, but when we configured the switches in the production segment to allow multicast-udp, the situation quickly becomes unstable. We saw the following:
To my knowledge, this should have worked. Can someone suggest anything that points me in the right direction. Also, does there exist an application (war or ear file) to test multicast traffic in the application server itself (besides solutions as jgroups-3.3.3.Final.jar.