[Pacemaker] Run only one resource per node?

[Lars Marowsky-Bree]

On 2009-07-15T21:06:43, lists at unimitated.com wrote:

> Hello all, I've been trying to set my cluster up so that no two resources 
> run on the same node together (i.e. each node in the cluster runs one and 
> only one resource and if there are not enough nodes something does not 
> run).  Is it possible to easily do this with colocation constraints or some 
> other way?  I see how to tell pacemaker that two resources should not run 
> together but I am not sure how to expand that to many resources without 
> having to specify a constraint for each resource against every other 
> resource.  Thanks for any help getting this going.

One possible way of doing it - assuming that all resources are "similar"
- is to create a clone with clone-node-max=1.

Pacemaker will spawn only one instance per node then.


Regards,
    Lars

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