[Linux-cluster] CLVMD hangs on 2nd node startup and hangs all gfs nodes.

[Tracey Flanders]

I've been trying to setup a 3 server cluster with GFS mounted over iSCSI on Qemu Virtual Machines. A 4th server acts as a iSCSI Target.
I found and article that explains my issue, but I can't seem to figure out what the solution is.

QUOTED from : http://kbase.redhat.com/faq/FAQ_51_10923.shtm
After successfully setting up a cluster, cman_tool shows the cluster is healthy. Mounting the gfs mount on the first node works successfully. However, when mounting gfs on the second node, the mount command hangs. Writing to a file on the first node also hangs.

On the second node, the following error is seen in /var/log/messages:

Jul 18 14:49:27 blade3 kernel: Lock_Harness 2.6.9-72.2 (built Apr 24
2007 12:45:55) installed
Jul 18 14:49:27 blade3 kernel: GFS 2.6.9-72.2 (built Apr 24 2007
12:46:12) installed
Jul 18 14:52:53 blade3 kernel: GFS: Trying to join cluster "lock_dlm",
"vcomcluster:testgfs"
Jul 18 14:52:53 blade3 kernel: Lock_DLM (built Apr 24 2007 12:45:57)
installed
Jul 18 14:52:53 blade3 kernel: dlm: connect from non cluster node
Jul 18 14:52:53 blade3 kernel: dlm: connect from non cluster node
END QUOTE

My Virtual Machines only have one interface so I still can't figure out why this is happening. I can successfully mount the GFS partition on any one node but as soon as I try to start the clvmd on a 2nd node it hangs the whole cluster. I'm wondering if its a Qemu VM network issue? Each host can ping each other by name and ip. The cluster works fine but I cant get GFS to work on th VMs. Is it possible to debug the clvmd to see what IP Address it is sending? Thanks,


Tracey Flanders

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