[Linux-cluster] RH Cluster doesn't pass basic acceptance tests - bug in fenced?

[Miroslav Zubcic]

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Josef Whiter wrote:

> This isn't a bug, its working as expected.

IT People from the central bank doesn't think like that. I cannot blame
them, because it is strange to me, and to anybody who has seen this RH
cluster behaviour.

> What you need in qdisk, set it up
> with the proper hueristics and it will force the shutdown of the bad node before
> the bad node has a chance to fence off the working node.

This is just a workaround for lack of communication between clurgmgrd and
fenced daemons, where first is aware of ethernet/network failure and is
trying to disable active service, and fenced which is fencing other node
without any good reason, because it doesn't know that it's node is faulty one.

I have even better workaround (one bonding with native data ethernet and
tagged vlan for fence subnet) for this silly behaviour, but I will really
like to see this thing fixed, because people are laughing on us when
testing our cluster configurations (we are configuring Red Hat machines
and clusters).


- --
Miroslav Zubcic, Nimium d.o.o., email: <mvz at nimium.hr>
Tel: +385 01 4852 639, Fax: +385 01 4852 640, Mobile: +385 098 942 8672
Mrazoviceva 12, 10000 Zagreb, Hrvatska

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