[Pacemaker] another basic configuration question

[Frank DiMeo]

Just FYI, this configuration also causes shutdown problems for pacemaker.  When I stop openais while running this configuration, lrmd and pengine are orphaned and become children of init (process 1).  Maybe this is why the resources never stop.

By the way, I noticed that I had the score designator it the wrong place in the collocation area, and it should be:

<rsc_colocation id="coloc-1" score="INFINITY">
	<resource_set id="coloc-1-set-1" sequential="true">
  		<resource_ref id="world1" /> 
  		<resource_ref id="world2" /> 
  	</resource_set>
</rsc_colocation>

Unfortunately, that didn't change the behavior.

-Frank


-Frank


> -----Original Message-----
> From: Frank DiMeo [mailto:Frank.DiMeo at bigbandnet.com]
> Sent: Tuesday, November 24, 2009 6:00 PM
> To: pacemaker at oss.clusterlabs.org
> Subject: [Pacemaker] another basic configuration question
> 
> Hi All,
> 
> I'm using the enclosed .xml file to control the startup sequence and
> collocation of two resources.  When I use this xml file, I get the
> following behavior:
> 
> 1) start both nodes, resources world1 and world2 start up in the
> correct sequence on ubuntu_2
> 2) execute crm_standby -U ubuntu_2 v -on, world2 and world2 stay on
> ubuntu_2.  This seems odd.
> 3) execute crm_standby -U ubuntu_2 v -off, world2 and world2 stay on
> ubuntu_2.
> 4) execute crm_resource --resource world1 --move -h ubuntu_1, world1
> and world2 stay on ubuntu_2.  Again, I thought world1 could move, and
> if it did, would take world2 with it.
> 5) execute crm_resource --resource world1 --un-move -h ubuntu_1
> 6) try to move world2, it won't move either, but this is not unexpected
> given the collocation constraint.
> 7) stop pacemaker (via /etc/init.d/openais stop) on ubuntu_2, and after
> about a minute, corosync et al stop, but world1 and world2 still
> continue to run on ubuntu_2, and both resources ALSO start running on
> ubuntu_1.
> 
> I've checked my resources using ocf-tester on both nodes (both pass on
> both nodes), and also manually verified both RA's on both nodes.  Does
> this behavior make sense given the xml file?
> 
> I've also run both of these resources using ONLY the collocation
> constraint (without the ordering constraint), the they seem to behave
> as I'd expect (i.e. they run on the same node together even when
> forcibly moved, or when a node is put into standby), as long as I
> specify "sequential=true" in the collocation constraint.  However, if I
> specify "sequential=false" in the collocation constraint, each resource
> tries to execute on the node opposite of the one that's running the
> other resource.
> 
> Thanks again in advance,
> Frank
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