[Pacemaker] Question about master/slave resource promotion

[David Vossel]

----- Original Message -----
> From: "Florian Haas" <florian at hastexo.com>
> To: "The Pacemaker cluster resource manager" <pacemaker at oss.clusterlabs.org>
> Sent: Saturday, February 25, 2012 2:52:54 AM
> Subject: Re: [Pacemaker] Question about master/slave resource promotion
> 
> On Sat, Feb 25, 2012 at 12:31 AM, David Vossel <dvossel at redhat.com>
> wrote:
> > Hey,
> >
> > I have a 2 node cluster with a multi-state master/slave resource.
> > When the multi-state resources start up on each node they enter
> > the Slave role.  At that point I can't figure out how to promote
> > the resource to activate the Master role on one of the nodes. Is
> > there anything special I need to do to get an instance of my
> > multi-state resource to promote to the Master role?
> 
> Yeah, actually using a resource type that is capable of running in
> master/slave mode would be a good start. :) Use
> ocf:pacemaker:Stateful
> instead of ocf:pacemaker:Dummy in your test setup.
>

The example works with the Stateful resource agent, and your comment helped me understand how this concept works better. I was not aware resource agents knew anything about master/slave status.  For some reason I had it in my head the master/slave concept was just internal to Pacemaker and we could make whatever we wanted out of it.

thanks:)

--David

 
> Hope this helps.
> 
> Cheers,
> Florian
> 
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