Hi list,
We're having problems with running multiple clusters in the same vlan.
For some reason clvmd refuses to start properly.
We think (but cannot completely confirm) that clvm is informed by the
clvmd on the other cluster about volumegroups
which it can't reach because it can't reach the underlying storage /
physical volumes.
The sympotoms are:
node fails on reboot with hung clvmd daemon
no output from clvmd even when started with debug (clvmd -d)
versions:
Cluster LVM daemon version: 2.02.09 (2006-08-17)
Protocol version: 0.2.1
cman_tool 1.03.00 (built Oct 19 2006 10:58:21)
Copyright (C) Red Hat, Inc. 2004 All rights reserved.
ccsd 1.03.00 (built Oct 19 2006 10:58:17)
Copyright (C) Red Hat, Inc. 2004 All rights reserved.
The node does join the cman cluster group and the defined fence group.
If the second cluster is shutdown nodes reboot without problems.
We're considering to force ccs to use different ports [1] for
communication as a workaround, any other options or suggestions would be
highly appreciated.
Best regards,
Ramon van Alteren
[1] man ccsd:
-P <port identifier>:<port number>
You have the option of specifying the port numbers used by
ccsd. The port identifier is either:
b, c, or f. "b" is the port which ccsd attempts to
communicate with ccsd processes on other
machines, via broadcast/multicast, to obtain or validate
its config file (cluster.conf). This is
known as the backend port. "c" is the base port
number of two consecutive ports used by ccsd
processes to communicate cluster membership information.
This is known as the cluster base port.
"f" is the port number that listens for information
requests from the CCS library (or programs
using it). This is known as the frontend port.
So, to change the frontend port one might specify -P f:60000.
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