[ClusterLabs] big trouble with a DRBD resource

[Ken Gaillot]

On Mon, 2017-08-07 at 15:23 +0200, Lentes, Bernd wrote:
> ----- On Aug 4, 2017, at 10:19 PM, kgaillot kgaillot at redhat.com wrote:
> 
> > 
> > The "ERROR" message is coming from the DRBD resource agent itself, not
> > pacemaker. Between that message and the two separate monitor operations,
> > it looks like the agent will only run as a master/slave clone.
> 
> Btw:
> Does the crm/lrm call the RA in the same way init does with scripts in /etc/init.d ?
> E.g if a resource has a monitor interval from 120, the RA is called every 2 min from the cluster with the option monitor ?
> That would be a pretty simple concept. Not a bad one.

Yes, Pacemaker executes the RA with the appropriate environment
variables whenever a resource action is needed.

Monitors work almost as you describe -- it's not exactly every 2
minutes, but 2 minutes from the last monitor's completion (or timeout),
to ensure that monitors don't overlap.

> https://wiki.clusterlabs.org/wiki/Debugging_Resource_Failures indicates that.
> 
> 
> Bernd
>  
> 
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-- 
Ken Gaillot <kgaillot at redhat.com>