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Hi, Given fencing is properly
configured, I think the default boot/sshutdown RHCS scripts should work. I too
use two_node (but no clvmd) in RHEL5.5 with latest updates to cman and
rgmanager, and a shutdown -r works well (and a shutdown -h too). The other node
cluster daemon should log this as a node shutdown in /var/log/messages, and it
should adjust quorum, and not trigger a fencing action over the other node. If one halts and poweroff
via shutdown -h one of the two nodes, and then reboots (via shutdown -r) the
surviving node, the surviving node will fence the other. We have power switch
fencing, and it should simply suceed (making a power off then a power on on
the other node's outlets). Once this fencing suceeds, the boot sequence
continues and the node assumes quorum. If later the other node
is powered on, it should join the cluster without problems. alvaro, Hi there, I've setup a two-node cluster with cman, clvmd and gfs2. I don't use
qdisk but had <cman expected_votes="1" two_node="1"/> I would like to know what is the proper procedure to reboot a node in
the two-node cluster (maybe this applies for all size?) when both nodes are
functioning fine but I just want to reboot one for some reason (for example,
upgrade kernel). Is there a preferred/better way to reboot the machine rather
than just running the "reboot" command as root. I have been doing the
"reboot" command so far and it sometimes creates problems for us,
including making the other node to fail. Thank you very much. |
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