[Pacemaker] Proper way to migrate multistate resource?

[Dejan Muhamedagic]

Hi,

On Tue, Feb 07, 2012 at 01:54:44PM +0100, Lars Ellenberg wrote:
> On Mon, Feb 06, 2012 at 04:48:26PM -0800, Chet Burgess wrote:
> > Greetings,
> > 
> > I'm some what new to pacemaker and have been playing around with a
> > number of configurations in a lab. Most recently I've been testing a
> > multistate resource using the ofc:pacemaker:Stateful example RA.
> > 
> > While I've gotten the agent to work and notice that if I shutdown or
> > kill a node the resources migrate I can't seem to figure out the
> > proper way to migrate the resource between nodes when they are both
> > up. 
> > 
> > For regular resources I've used "crm resource migrate <rsc>" without
> > issue. However when I try this with a multistate resource it doesn't
> > seem to work. When I run the command it just puts the slave node into
> > a stopped state. If I try and tell it to migrate specifically to the
> > slave node it claims to already be running their (which I suppose in a
> > sense it is).
> 
> the crm shell does not support roles for the "move" or "migrate" command
> (yet; maybe in newer versions. Dejan?).

No, it doesn't. The crm resource commands rely on the underlying
tools (crm_resource, et al). crm_resource is probably the right
place to implement such a functionality, then we can easily add
support to the shell as well. Patches accepted :)

Cheers,

Dejan