[Pacemaker] Three questions...

[Dejan Muhamedagic]

Hi,

On Sat, Mar 07, 2009 at 11:40:52AM +0530, Romi Verma wrote:
> Thanks Dejan,
> it is really good info for me . one more question, suppose we are running a
> stonith as clone on four nodes cluster. if one nodes fails and it needs to
> be fenced then who will be elected among rest three nodes to fence this
> errant node. how this election happens. is there any priority for nodes also

No, there is no coordination between nodes. All of them will try
to reset the node.

Thanks,

Dejan

> Regards,
> 
> On Fri, Mar 6, 2009 at 6:26 PM, Dejan Muhamedagic <dejanmm at fastmail.fm>wrote:
> 
> > Hi,
> >
> > On Tue, Mar 03, 2009 at 11:07:18AM +0530, Romi Verma wrote:
> > > Dejan please reply , how do we set priority??
> > >
> > > On Tue, Feb 24, 2009 at 1:12 PM, Andrew Beekhof <beekhof at gmail.com>
> > wrote:
> > >
> > > > On Tue, Feb 24, 2009 at 06:38, Romi Verma <romi3rdfeb at gmail.com>
> > wrote:
> > > > > Thanks a lot Andrew for your reply,
> > > > > i have another question on stonith. i have configured sbd stonith and
> > > > riloe
> > > > > stonith.  can i set the order of execution. say i want riloe to get
> > > > executed
> > > > > first and if it fails then sbd to get executed. should i set
> > priority??
> > > >
> > > > I think you can, but dejan has the details on how
> >
> > Set the priority attribute for the stonith resource (small
> > integer). Resources with lower priority start earlier.
> >
> > This works only with pacemaker v1.x.
> >
> > Thanks,
> >
> > Dejan
> >
> > > > > it seems to me that suse 11 follows "or" approach , like if one
> > stonith
> > > > > fails then only execute another stonith. is there any way to make it
> > > > "and" ,
> > > >
> > > > no, thats generally a bad idea and results in worse reliability than a
> > > > single device.
> > > >
> > >
> > > >
> > > > > i mean to say even if first stonith pass , execute second also .
> > > > >  you may feel that there is no need to to execute second stonith if
> > first
> > > > > was successful . But just for my curiosity i want to know is it
> > possible
> > > > or
> > > > > not.
> > > > >
> > > > > Thanks again
> > > > >>
> > > > >>
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-- 
Dejan