[ClusterLabs] Instant service restart during failback

Euronas Support support at euronas.com
Fri Apr 21 06:26:05 EDT 2017


Seems that replacing inf: with 0: in some colocation constraints fixes the 
problem, but still cannot understand why it worked for one node and not for 
the other.

On 20.4.2017 12:16:02 Klechomir wrote:
> Hi Klaus,
> It would have been too easy if it was interleave.
> All my cloned resoures have interlave=true, of course.
> What bothers me more is that the behaviour is asymmetrical.
> 
> Regards,
> Klecho
> 
> On 20.4.2017 10:43:29 Klaus Wenninger wrote:
> > On 04/20/2017 10:30 AM, Klechomir wrote:
> > > Hi List,
> > > Been investigating the following problem recently:
> > > 
> > > Have two node cluster with 4 cloned (2 on top of 2) + 1 master/slave
> > > services on it (corosync+pacemaker 1.1.15)
> > > The failover works properly for both nodes, i.e. when one node is
> > > restarted/turned in standby, the other properly takes over, but:
> > > 
> > > Every time when node2 has been in standby/turned off and comes back,
> > > everything recovers propery.
> > > Every time when node1 has been in standby/turned off and comes back,
> > > part
> > > of the cloned services on node2 are getting instantly restarted, at the
> > > same second when node1 re-appeares, without any apparent reason (only
> > > the
> > > stop/start messages in the debug).
> > > 
> > > Is there some known possible reason for this?
> > 
> > That triggers some deja-vu feeling...
> > Did you have a similar issue a couple of weeks ago?
> > I remember in that particular case 'interleave=true' was not the
> > solution to the problem but maybe here ...
> > 
> > Regards,
> > Klaus
> > 
> > > Best regards,
> > > Klecho
> > > 
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