On Nov 24, 2010, at 11:36 AM, Dan Frincu wrote:

> Hi,
> 
> Vadym Chepkov wrote:
>> On Nov 24, 2010, at 9:56 AM, Robinson, Eric wrote:
>> 
>> 
>>> I performed a "power-plug-pull" test on my newest cluster and it failed
>>> over as expected. However, when I restored power to the "failed" node,
>>> the resources failed back. I don't understand why this happened since I
>>> have resource stickiness set. 
>>> 
>>> There are three nodes in the cluster. I pulled the plug in node ha07b
>>> and resource g_clust05 failed over to node ha07c just like it should.
>>> But when I restored power to ha07b, the resource failed back. (Well,
>>> almost. DRBD did not successfully fail back and both nodes ended up in a
>>> secondary / standalone state.)
>>> 
>>> Shouldn't the resource stickiness have kept the resource on the node
>>> ha07c?
>>> 
>> 
>> 
>> Not if you have this in your config:
>> 
>> 
> This is set by the crm-fence-peer.sh in the handlers section of 
> /etc/drbd.conf when you enable resource level fencing for DRBD. The 
> question is once the node comes back it should remove the constraint 
> automagically, why doesn't it do it here as well?

Nope, this was created by "move"/"migrate" command. Somebody forgot 
"unmove"/"unmigrate"



> 
> Maybe it's missing the crm-unfence-peer.sh in the same /etc/drbd.conf file?
>>> location cli-prefer-g_clust04 g_clust04 \
>>>       rule $id="cli-prefer-rule-g_clust04" inf: #uname eq
>>> ha07a.mydomain.com
>>> location cli-prefer-g_clust05 g_clust05 \
>>>       rule $id="cli-prefer-rule-g_clust05" inf: #uname eq
>>> ha07b.mydomain.com
>>> 
>> 
>> 
> I've went through something similar, and this could be the case as well, 
> the combined score for the group is higher than the resource-stickiness 
> value, setting it to a much higher value (or even inf:) would do the job.
> 
> Regards,
> Dan
>> Cheers,
>> Vadym
>> 
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>> 
> 
> -- 
> Dan FRINCU
> Systems Engineer
> CCNA, RHCE
> Streamwide Romania
> 
> _______________________________________________
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> [email protected]
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