[Pacemaker] Resource Scheduler Parameters
Dejan Muhamedagic
dejanmm at fastmail.fm
Tue Apr 7 09:39:57 UTC 2009
On Tue, Apr 07, 2009 at 08:07:27AM +0200, Andrew Beekhof wrote:
> Nothing in pacemaker - but the lrmd could be doing something that may
> be involved
AFAIK, it doesn't.
>
> On Tue, Apr 7, 2009 at 02:21, btinsley <btinsley at gmail.com> wrote:
> > This is a little early in investigation on my end, but is there anything
> > that Pacemaker... or potentially OpenAIS, does that would restrict a cluster
> > resource from setting the scheduler type and/or priority? I have been
> > tinkering with KVM instances and there is a 100% repeatable difference
> > between how it behaves when Pacemaker starts the resource and when I start
> > it via the same OCF script on the command line (as the root user). When it
> > is started via Pacemaker, it seems to be unable to change its scheduler and
> > priority and eventually the whole system is brought to its knees and all
> > monitors get stuck in the "waiting on I/O" (D) state, which freaks Pacemaker
> > out...rightfully so ;-)
> >
> > Looking at /proc/<pid>/sched shows:
> >
> > ...
> > policy???????????????????????????? :??????????????????? 0
> > prio?????????????????????????????? :??????????????????? 0
> > ...
> >
> > And invoking the resource from the command line shows:
> >
> > ...
> > policy???????????????????????????? :??????????????????? 2
> > prio?????????????????????????????? :??????????????????? 120
> > ...
> >
> > Invoking ulimit with the -e and -r parameters with a value of "unlimited" in
> > the OCF script does no good. Thoughts?
> >
> >
> > _______________________________________________
> > Pacemaker mailing list
> > Pacemaker at oss.clusterlabs.org
> > http://oss.clusterlabs.org/mailman/listinfo/pacemaker
> >
> >
>
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