Out of the box cluster problem

[tim.shaw]

Hi,
Using AS 4.2.1.GA on RH Linux 5 - 2 identical machines on isolated network.
2 machines with 2 JBoss 'all' configurations (jboss1_1, jboss1_2 and jboss2_1, jboss2_2).
Start JBoss's on jboss1 - no problem. Instances see each other.
Start JBoss's on jboss2 - same.
Start jboss1_1 on jboss1 and jboss2_1 on jboss2. They don't see each other!
Network is served by a switch - ping 224.0.0.1 shows all hosts correctly. Jboss's are started with -u 224.0.0.1. 'route add -net 224.0.0.0 etc.' done for both machines.

Please help - Any suggestions for where to start?

Thx

[brian.stansberry]

See http://wiki.jboss.org/wiki/Wiki.jsp?page=TestingJBoss
particularly the last link on the page -- http://www.jgroups.org/javagroupsnew/docs/manual/html/ch02.html#ItDoesntWork .

Also useful is http://www.29west.com/docs/THPM/multicast-address-assignment.html

[tim.shaw]

Many thanks.
The result of the 2nd URI works one way and not the other. Hmmm. Will investigate further.
Again, thanks - I'll keep digging (my SysAdmin's gone home :-)
tim

[tim.shaw]

Working ... once sysadmin managed to climb out of bed and remember he'd disabled something in the ip tables!
Thanks for the pointer tho' - the test programs are a boon, and i will (no doubt) be using them again.