Resolution: Cannot Reproduce
- start Apache HTTP Server with mod_cluster
- start EAP 6.3 worker 1, jvmroute: jboss-eap-6.3
- start EAP 6.3 worker 2, jvmroute: jboss-eap-6.3-2
- stop 1.
- let 2. and 3. trying to contact the balancer
See two detailed logs for both machines: OOM-server.logs.zip.
At the moment, I'm not sure it was really mod_cluster's fault, due to the JGroups messages. I have a hunch it might be linked to the new JBossWeb NIO...
Assigning to myself for investigation.