[ClusterLabs] Using pacemaker for manual failover only?

Klaus Wenninger kwenning at redhat.com
Tue May 24 05:13:38 EDT 2016

On 05/24/2016 09:50 AM, Jehan-Guillaume de Rorthais wrote:
> Le Tue, 24 May 2016 01:53:22 -0400,
> Digimer <lists at alteeve.ca> a écrit :
>> On 23/05/16 03:03 PM, Stephano-Shachter, Dylan wrote:
>>> Hello,
>>> I am using pacemaker 1.1.14 with pcs 0.9.149. I have successfully
>>> configured pacemaker for highly available nfs with drbd. Pacemaker
>>> allows me to easily failover without interrupting nfs connections. I,
>>> however, am only interested in failing over manually (currently I use
>>> "pcs resource move <drbd_rsc> <target_node> --master"). I would like for
>>> the cluster to do nothing when a node fails unexpectedly.
>>> Right now the solution I am going with is to run 
>>> "pcs property set is-managed-default=no"
>>> until I need to failover, at which point I set is-managed-default=yes,
>>> then failover, then set it back to no.
>>> While this method works for me, it can be unpredictable if people run
>>> move commands at the wrong time.
>>> Is there a way to disable automatic failover permanently while still
>>> allowing manual failover (with "pcs resource move" or with something else)?
> Try to set up your cluster without the "interval" parameter on the monitor
> action? The resource will be probed during the target-action (start/promote I
> suppose), but then it should not get monitored anymore.

Ignoring the general cluster yes/no question a simple solution would
be to bind the master-role to a node-attribute that you move around

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