[Pacemaker] Resource Scheduler Parameters

[Andrew Beekhof]

On Tue, Apr 7, 2009 at 11:39, Dejan Muhamedagic <dejanmm at fastmail.fm> wrote:
> 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.

Ok, I was just thinking that its the one that ultimately spawns the
process... so anything it did would also be inherited by the client.

 btinsley: Perhaps look at /proc/<pid>/sched for the lrmd and aisexec
processes.  That may give you an idea of where the settings are coming
from.

>
>>
>> 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
>> >
>> >
>>
>> _______________________________________________
>> Pacemaker mailing list
>> Pacemaker at oss.clusterlabs.org
>> http://oss.clusterlabs.org/mailman/listinfo/pacemaker
>
> _______________________________________________
> Pacemaker mailing list
> Pacemaker at oss.clusterlabs.org
> http://oss.clusterlabs.org/mailman/listinfo/pacemaker
>