RE: [ogfs-dev] stonith <Was: Recovery Race conditions>
>
> How do other dlm's do fencing?
I would be surprised if DLMs do fencing ... it seems like more of a cluster management job.
>
> I have not used STONITH from heartbeat, but I'm almost positive
> heartbeat only invokes it for 2-node HA clusters, not for 3+
> node non-HA
> clusters.
That's too bad.
>
> I think stonith has a command-line invocation, so ogfs could invoke it
> directly if required,
Ahh, good. Not the ogfs module, however, but rather the lock module. ogfs code knows nothing about STOMITH at all (and that, IMHO, is a *good thing*).
> but it seems like fencing is something
> that needs
> to be handled prior to ogfs even knowing that a problem exists.
Yes, I agree. See latest ogfs-memexp (search for STOMITH) to see recovery process done by memexp lock module.
>
> Greg
> --
> Greg Freemyer
>
>
>
>
>
>
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