[ClusterLabs] Preventing Cluster from moving resources

Michael Schwartzkopff ms at sys4.de
Wed May 13 10:15:51 EDT 2015

Am Mittwoch, 13. Mai 2015, 16:10:02 schrieb Peter Albrecht:
> Hello,
> I have configured a two-node RHEL 6.6 cluster with Pacemaker.
> Whenever I create a new resource (actually it's resource groups I am
> creating using a script), the resource group is started on one of the
> hosts.
> Two questions:
> 1. Is there a way to create a resource / resource group without starting it
>    immediately? Currently, after creating all my resource groups I disable
>    them in order to prevent the cluster from starting them.

What do you mean by "disable"?

> 2. When disabling or deleting resources / resource groups, the other
>    resources are moved around between the nodes. Is there a way to prevent
>    this? Of course I can set location constraints (which I already do for
>    some of them). I thought there might be some parameter in the properties
>    but I did not find any.

Resource stickiness makes started tick to the node they are running on until a 
"better" node becomes available. See the configuration of rsc_default.
> In case you are wondering: It's a customer request to have all the resource
> groups created now but they want to decide on a case-by-case basis when
> and where to start the resource groups.

Yes. Customers requests can realy ruin a nice project sometimes.

Mit freundlichen Grüßen,

Michael Schwartzkopff

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