[Pacemaker] resource-discovery question

Vladislav Bogdanov bubble at hoster-ok.com
Wed Nov 12 21:36:59 UTC 2014


12.11.2014 22:57, David Vossel wrote:
> 
> 
> ----- Original Message -----
>> 12.11.2014 22:04, Vladislav Bogdanov wrote:
>>> Hi David, all,
>>>
>>> I'm trying to get resource-discovery="never" working with cd7c9ab, but
>>> still
>>> get "Not installed" probe failures from nodes which does not have
>>> corresponding resource agents installed.
>>>
>>> The only difference in my location constraints comparing to what is
>>> committed in #589
>>> is that they are rule-based (to match #kind). Is that supposed to work with
>>> the
>>> current master or still TBD?
>>
>> Yep, after I modified constraint to a rule-less syntax, it works:
> 
> ahh, good catch. I'll take a look!
> 
>>
>> <rsc_location id="vlan003-on-cluster-nodes" rsc="vlan003" score="-INFINITY"
>> node="rnode001" resource-discovery="never"/>
>>
>> But I'd prefer to that killer feature to work with rules too :)
>> Although resource-discovery="exclusive" with score 0 for multiple nodes
>> should probably
>> also work for me, correct?
> 
> yep it should.
> 
>> I cannot test that on a cluster with one cluster
>> node and one
>> remote node.
> 
> this feature should work the same with remote nodes and cluster nodes.
> 
> I'll get a patch out for the rule issue. I'm also pushing out some documentation
> for the resource-discovery option. It seems like you've got a good handle on it
> already though :)

Oh, I see new pull-request, thank you very much!

One side question: Is default value for clone-max influenced by
resource-discovery value(s)?


> 
>>>
>>> My location constraints look like:
>>>
>>>       <rsc_location id="vlan003-on-cluster-nodes" rsc="vlan003"
>>>       resource-discovery="never">
>>>         <rule score="-INFINITY" id="vlan003-on-cluster-nodes-rule">
>>>           <expression attribute="#kind" operation="ne" value="cluster"
>>>           id="vlan003-on-cluster-nodes-rule-expression"/>
>>>         </rule>
>>>       </rsc_location>
>>>
>>> Do I miss something?
>>>
>>> Best,
>>> Vladislav
>>>
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>>>
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>>> Bugs: http://bugs.clusterlabs.org
>>>
>>
>>





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