[Pacemaker] Temporarely suspending monitoring

[Bart Coninckx]

On Wednesday 11 August 2010 23:55:42 Bart Coninckx wrote:
> On Wednesday 11 August 2010 23:01:22 Vince Gabriel wrote:
> > > -----Original Message-----
> > > From: Bart Coninckx [mailto:bart.coninckx at telenet.be]
> > > Sent: Wednesday, August 11, 2010 10:49 AM
> > > To: pacemaker at oss.clusterlabs.org
> > > Subject: [Pacemaker] Temporarely suspending monitoring
> > >
> > > Hi,
> > >
> > > We're using the Xen resource agents with an operation "monitor" that
> > > repeats
> > > every 60 seconds.
> > > For backing up the Xen machines, we use "xm save" and "xm restore"
> >
> > which
> >
> > > takes
> > > them offline for a short amount of time (and copies the memory
> >
> > contents to
> >
> > > a
> > > file). Of course, when the monitor check happens right after the Xen
> >
> > guest
> >
> > > has
> > > been taken offline, it will try and restart it, possibly before the
> >
> > Xen
> >
> > > guest
> > > has been restored in the proper way.
> > > Is there a way to avoid this? For instance by temporarely suspending
> >
> > the
> >
> > > monitoring?
> >
> > To stop monitoring:
> >
> > #crm resource unmanage <rsc>
> >
> > To start monitoring:
> >
> > #crm resource manage <rsc>
> >
> > > Thx!
> > >
> > >
> > > B.
> > >
> > > _______________________________________________
> > > Pacemaker mailing list: Pacemaker at oss.clusterlabs.org
> > > http://oss.clusterlabs.org/mailman/listinfo/pacemaker
> > >
> > > Project Home: http://www.clusterlabs.org
> > > Getting started:
> >
> > http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
> >
> > > Bugs: http://developerbugs.linux-
> > > foundation.org/enter_bug.cgi?product=Pacemaker
> >
> > _______________________________________________
> > Pacemaker mailing list: Pacemaker at oss.clusterlabs.org
> > http://oss.clusterlabs.org/mailman/listinfo/pacemaker
> >
> > Project Home: http://www.clusterlabs.org
> > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
> > Bugs:
> > 
> > http://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker
> 
> Hi, thx for the reply - I'm using Heartbeat with CRM, not really Pacemaker.
>  I figured things wouldn't be too different between the two, but it seems
>  they are. I've looked at the crm_resource command and "crm_resource -p
>  is_managed" seems to do the same thing. Am I correct?
> 
> thx again,
> 
> 
> B.
> 
> _______________________________________________
> Pacemaker mailing list: Pacemaker at oss.clusterlabs.org
> http://oss.clusterlabs.org/mailman/listinfo/pacemaker
> 
> Project Home: http://www.clusterlabs.org
> Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
> Bugs:
>  http://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker
> 

Hmpf, in this thread Andrew Beekhof explains that stopping to manage a 
resource does not stop monitoring:

http://readlist.com/lists/lists.linux-ha.org/linux-ha/0/2861.html

maybe I need to try the linux-ha list

B.