[Pacemaker] Very strange behavior on asymmetric cluster

Pavel Levshin pavel at levshin.spb.ru
Fri Mar 18 14:29:35 EDT 2011

18.03.2011 17:07, Pavel Levshin:
> Imagine a network where connectivity restores for a couple of seconds 
> then breaks again. A node becomes online, monitoring actions are 
> directed, then connectivity fails. This node will be unclean offline, 
> then.
> And fencing may fail in this scenario, too, because it usually relies 
> on the network.
> So every resource in the cluster will be impacted, were they installed 
> on the failed node or not.

I shall note that this case is invalid. This particular case is worked 
around by pacemaker, so the resources are not disturbed more than they 

So, except for bug #2568, I cannot now reproduce action loss due to a 
network failure.

It does not invalidate other causes for the same failure, though.

Pavel Levshin

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