Hi all, I'm working on issue GTNPORTAL-2258.

I configure Gatein cluster mode follow by document of gatein (https://docs.jboss.org/author/display/GTNPORTAL35/Clustering+configuration).

When i start gatein with command: 

    $ ./bin/standalone.sh --server-config=standalone-ha.xml -Djboss.node.name=node1 -b 192.168.210.101 -u 2.439.232.2 -Djboss.bind.address.management=192.168.210.101

I can't understand param "-u 239.23.42.2", i see that's multicast IP, but how can i get this ip in my network. 

When i remove this param and use default of jbossAS and it work with gatein 3.5.x But in 3.6.x and master branch, i always meet exception.

 

ERROR [org.jgroups.protocols.UDP] (Timer-2,127.0.0.1:56200) failed sending message to null (66 bytes): java.lang.Exception: dest=/230.0.0.4:45588 (69 bytes)

at org.jgroups.protocols.UDP._send(UDP.java:374)

at org.jgroups.protocols.UDP.sendToAllMembers(UDP.java:302)

at org.jgroups.protocols.TP.doSend(TP.java:1478)

at org.jgroups.protocols.TP.send(TP.java:1468)

at org.jgroups.protocols.TP.down(TP.java:1186)

at org.jgroups.protocols.TP$ProtocolAdapter.down(TP.java:2308)

at org.jgroups.protocols.PING.sendMcastDiscoveryRequest(PING.java:278)

at org.jgroups.protocols.PING.sendGetMembersRequest(PING.java:259)

at org.jgroups.protocols.Discovery$PingSenderTask$1.run(Discovery.java:407)

at org.jgroups.util.TimeScheduler$RobustRunnable.run(TimeScheduler.java:196)

at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:439) [rt.jar:1.6.0_45]

at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317) [rt.jar:1.6.0_45]

at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150) [rt.jar:1.6.0_45]

at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98) [rt.jar:1.6.0_45]

at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:180) [rt.jar:1.6.0_45]

at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:204) [rt.jar:1.6.0_45]

at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895) [rt.jar:1.6.0_45]

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918) [rt.jar:1.6.0_45]

at java.lang.Thread.run(Thread.java:662) [rt.jar:1.6.0_45]

Caused by: java.io.IOException: Invalid argument

at java.net.PlainDatagramSocketImpl.send(Native Method) [rt.jar:1.6.0_45]

at java.net.DatagramSocket.send(DatagramSocket.java:625) [rt.jar:1.6.0_45]

at org.jgroups.protocols.UDP._send(UDP.java:358)

... 18 more