[Linux-cluster] Starter Cluster / GFS

Digimer linux at alteeve.com
Fri Nov 12 02:47:10 UTC 2010

On 10-11-11 09:22 PM, Jankowski, Chris wrote:
> 2.
> We are not talking about long delays here. The whole cycle of taking the power off a blade including login to the service processor is less than 1 ms. Delay or lack thereof is not a problem.  The transactional nature of the processing is the issue.
> Regards,
> Chris Jankowski

I forgot to mention; Fence calls can only be sent by nodes with quorum.
So a race condition should, as I understand it, be a concern with 2-node
clusters only.

I'm not entirely sure though on how quorum is determined at the time of
partitioning. That is, say you have a three node cluster, and one node
disconnects. I need to verify that it checks to see if it has quorum
before sending a fence call. I expect that is the case though.

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