All,
I've got a strange one. I have a large Cisco Ent layer 3 switch that
all of my machine connect to. I have the machines segregated into
different ganglia clusters on the same mcast IP... but use different ports.
We just added a whole bunch of new machines. about 1/2 Xeon and 1/2
Opteron. The Xeon nodes run RedHat 8.0, the Opterons run RH Advanced
Workstation 3. I just installed the most recent version:
ganglia-monitor-core-gmond-2.5.6-1.i386.rpm on all of them.
The Xeon nodes all see one another.. and work fine. The opteron nodes
only see themselves. Using tcpdump, it sees no other mcast traffic on
the mcast IP other than itself. It's not a issue on the switch... and I
can telnet to the mcast port on each machine and see only that machines
data... so it's not a blocked port. And again... each cluster is
attached to the same switch.
Is anyone else using this with RH AW 3?.. and/or opterons. I'm stumpped.
Thanks,
Pete.
--
Peter Schmid
Technical Director
Logic Technology Inc.
GE Global Research Center
ITMS Engineering Systems Group
(518) 387-6903
