I'm testing a clustered Tomcat (5.0.30) configuration on Windows XP Professional, behind Apache 2.0.54 with mod_jk as my load balancer. Load balancing works fine, as I can see sessions being dispatched to each Tomcat from mod_jk (sticky sessions is disabled.) The problem I have is that session replication between the Tomcat instances is failing. I've verified that the multicast 'heartbeats' are being sent (via Ethereal), but I never see any TCP traffic between the instances. This PC is NOT multi-homed (only have one network card), but I've been able to do similar setups in Linux (multiple instances on one server) without any problems.
Does anyone have a suggestions on what I can try to do to get sessions to replicate? Thanks! Jerry Jalenak Software Engineer Netopia, Inc.
