[ClusterLabs] Antw: CRM location specification and errors

[Andrei Borzenkov]

В Fri, 26 Jun 2015 08:28:14 +0200
"Ulrich Windl" <Ulrich.Windl at rz.uni-regensburg.de> пишет:

> Hi!
> 
> I guess the cluster is running monitor operations on the forbidden node to make sure no resources run there: Meaning: If you had started those resources on the forbidden node, the cluster would stop them. To find out it runs the monitors.

Unfortunately it does not. And that was quite a nasty surprise for me
when I started to use pacemaker. It does run monitor only once (probe)
on initial startup. So no, in pacemaker there is no protection against
accident manual starting of resources that I am aware of.


> 
> Regards,
> Ulrich
> 
> >>> Matthew Vernon <mcv21 at cam.ac.uk> schrieb am 25.06.2015 um 18:07 in Nachricht
> <558C2747.7040207 at cam.ac.uk>:
> > Hi,
> > 
> > I have a 3-node cluster, with 2 nodes of type "xenhost", and one node of
> > type "quorum". I have a location defined that should stop my resource
> > from being run on the "quorum" node, and yet crm_mon always shows
> > something like:
> > 
> > Failed actions:
> >     written_monitor_0 on on 'not installed' (5): call=68,
> > status=complete, last-rc-change='Thu Jun 25 16:58:38 2015', queued=0ms,
> > exec=22ms
> >     written_monitor_0 on on 'not installed' (5): call=68,
> > status=complete, last-rc-change='Thu Jun 25 16:58:38 2015', queued=0ms,
> > exec=22ms
> > 
> > ...and if I do crm resource cleanup written, the only effect is that the
> > timestamp updates.
> > 
> > Why, if I have specified that my resource "written" is only to be run on
> > "xenhost" nodes is the cluster trying to monitor it on the quorum node?
> > Better, how can I stop it doing so (or, if that's impossible, suppress
> > the errors)?
> > 
> > Relevant bits of config:
> > node 739821491: on \
> >         attributes type=quorum standby=off
> > node 739821492: ophon \
> >         attributes type=xenhost maintenance=off standby=off
> > node 739821493: opus \
> >         attributes type=xenhost maintenance=off standby=off
> > primitive written Xen \
> > [config snipped, can include if you like]
> > location xenhosts written \
> >         rule -inf: type ne xenhost
> > 
> > Thanks,
> > 
> > Matthew
> > 
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> 
> 
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