[Pacemaker] colocation issue with master-slave resources

[Andrew Beekhof]

Perhaps try and ordering constraint, I may have also fixed something
in this area for 1.1.6 so an upgrade might also help

On Tue, Nov 29, 2011 at 1:38 AM, Patrick H. <pacemaker at feystorm.net> wrote:
> Sent: Mon Nov 28 2011 01:31:22 GMT-0700 (MST)
> From: Andreas Kurz <andreas at hastexo.com>
> To: The Pacemaker cluster resource manager <pacemaker at oss.clusterlabs.org>
> Subject: Re: [Pacemaker] colocation issue with master-slave resources
>
> On 11/28/2011 04:51 AM, Patrick H. wrote:
>
> I'm trying to setup a colocation rule so that a couple of master-slave
> resources cant be master unless another resource is running on the same
> node, and am getting the exact opposite of what I want. The master-slave
> resources are getting promoted to master on the node which this other
> resource isnt running on.
>
> In the below example, 'stateful1:Master' and 'stateful2:Master' should
> be on the same node 'dummy' is on. It works just fine if I change the
> colocation around so that 'dummy' depends on the stateful resources
> being master, but I dont want that. I want dummy to be able to run no
> matter what, but the stateful resources not be able to become master
> without dummy.
>
>
> # crm status
> ============
> Last updated: Mon Nov 28 03:47:04 2011
> Stack: cman
> Current DC: devlvs03 - partition with quorum
> Version: 1.1.5-5.el6-01e86afaaa6d4a8c4836f68df80ababd6ca3902f
> 2 Nodes configured, 2 expected votes
> 6 Resources configured.
> ============
>
> Online: [ devlvs04 devlvs03 ]
>
>  dummy    (ocf::pacemaker:Dummy):    Started devlvs03
>  Master/Slave Set: stateful1-ms [stateful1]
>      Masters: [ devlvs04 ]
>      Slaves: [ devlvs03 ]
>  Master/Slave Set: stateful2-ms [stateful2]
>      Masters: [ devlvs04 ]
>      Slaves: [ devlvs03 ]
>
>
> # crm configure show
> node devlvs03 \
>     attributes standby="off"
> node devlvs04 \
>     attributes standby="off"
> primitive dummy ocf:pacemaker:Dummy \
>     meta target-role="Started"
> primitive stateful1 ocf:pacemaker:Stateful
> primitive stateful2 ocf:pacemaker:Stateful
> ms stateful1-ms stateful1
> ms stateful2-ms stateful2
> colocation stateful1-colocation inf: stateful1-ms:Master dummy
> colocation stateful2-colocation inf: stateful2-ms:Master dummy
>
> use dummy:Started ... default is to use same role as left resource, and
> Dummy will never be in role Master ...
>
> Regards,
> Andreas
>
> Tried that too (just not the configuration at the time I sent the email), no
> effect.
>
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