[Linux-cluster] GFS 6.0 node without quorum tries to fence

Steve Landherr landherr at kazeon.com
Tue Aug 3 18:03:40 UTC 2004


Agreed.  But I though that the quorum concept was there to protect
against a netsplit causing independent clusters to form.  If I'm a node
and I can't contact enough peers to gain quorum, then I can't be a part
of the cluster.  If I'm not part of the cluster, then I shouldn't be
fencing other nodes.

Am I missing something?

-steve

-----Original Message-----
From: linux-cluster-bounces at redhat.com
[mailto:linux-cluster-bounces at redhat.com] On Behalf Of Michael Conrad
Tadpol Tilstra
Sent: Tuesday, August 03, 2004 10:58 AM
To: Discussion of clustering software components including GFS
Subject: Re: [Linux-cluster] GFS 6.0 node without quorum tries to fence

On Tue, Aug 03, 2004 at 09:22:59AM -0700, Steve Landherr wrote:
> In a netsplit, what does fencing achieve when done by a node that
> doesn't have quorum?  It still won't have quorum.  It should probably
> just clean up as best it can and leave the rest of the cluster alone.

Think of the world as the nodes see it, not as you see it.  You cannot
tell if it is a netsplit or truely nodes dieing.  It looks the same.







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