Thank you all. The problem I have is that I don't seem to be able to get out of the cluster gracefully, even if I stop the services manually in the right order. For example, I joined the cluster manually by starting cman, clvmd and gfs2 in the order and everything is working just fine.
Then I wanted to reboot. This time, I want to do it manually so I went to stop the services in order. [root@test2 ~]# service gfs2 stop Unmounting GFS2 filesystem (/vrstorm): [ OK ] [root@test2 ~]# service clvmd stop Signaling clvmd to exit [ OK ] Waiting for clvmd to exit: [FAILED] clvmd failed to exit [FAILED] Somehow clvmd cannot be stopped. I still have the process running root 2646 0.0 0.5 194476 45016 ? SLsl 02:18 0:00 clvmd -T30 How do I stop clvmd gracefully? I am running RHEL-6. [root@test2 ~]# uname -a Linux test2 2.6.32-71.18.2.el6.x86_64 #1 SMP Wed Mar 2 14:17:40 EST 2011 x86_64 x86_64 x86_64 GNU/Linux [root@test2 ~]# cat /etc/redhat-release Red Hat Enterprise Linux Server release 6.0 (Santiago) Thank you very much. Shi On Thu, Mar 10, 2011 at 1:41 PM, Alvaro Jose Fernandez < [email protected]> wrote: > 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. > Shi > -- > Shi Jin, Ph.D. > > -- > Linux-cluster mailing list > [email protected] > https://www.redhat.com/mailman/listinfo/linux-cluster > -- Shi Jin, Ph.D.
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