On Mon, 2008-07-21 at 23:35 +0200, Jonas Helgi Palsson wrote:
> Hi
>
> Running CentOS 5.2, all current updates on x86_64 platform.
>
> I have set up a 2node cluster with following resources in one service
>
> * one shared MD device (the resource is a script that assembles and stops
> the , device and checks its status).
> * one shared filesystem,
> * one shared NFS startup script,
> * one shared ip.
>
> Which are started in that order.
>
> And the cluster works normaly, I can move the service between the two nodes.
>
> But I have observed one behavior that is not good. Once when trying to move
> the service from one node to another, the clustermanager could not "umount"
> the filesystem.
> Although "lsof | grep <mountpoint>" did not show anything, "umount -f
> <mountpoint>" did not work. ("umount -l <mountpoint>" did the job)
> Are there any magical things one can put in cluster.conf to get the behavior I
> want? That if a service does not want to stop cleanly, fence the node and
> start the service on another node?
Add self_fence="1" to the <fs> resource.
-- Lon
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