[Pacemaker] resource-discovery question

David Vossel dvossel at redhat.com
Wed Nov 12 19:57:40 UTC 2014



----- 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 :)

> > 
> > 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
> > 
> > _______________________________________________
> > Pacemaker mailing list: Pacemaker at oss.clusterlabs.org
> > http://oss.clusterlabs.org/mailman/listinfo/pacemaker
> > 
> > Project Home: http://www.clusterlabs.org
> > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
> > Bugs: http://bugs.clusterlabs.org
> > 
> 
> 




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