[Pacemaker] multistate resource warning

[Frank DiMeo]

Thank you Lars.

-Frank

> -----Original Message-----
> From: Lars Ellenberg [mailto:lars.ellenberg at linbit.com]
> Sent: Tuesday, January 05, 2010 11:21 AM
> To: pacemaker at oss.clusterlabs.org
> Subject: Re: [Pacemaker] multistate resource warning
> 
> On Tue, Jan 05, 2010 at 09:20:53AM -0500, Frank DiMeo wrote:
> > Hi All,
> >
> >
> >
> > I've got a simple multistate resource running on a two node cluster.
> > The enclosed configuration is happy accepted by the CIB, and I see
> the
> > resource running in the master/slave state on the two nodes, but when
> > I run a crm_verify, I get a warning:
> >
> >
> >
> > cibadmin -replace --xml-file 1rsc_basic.xml
> >
> > hacluster at ubuntu_2:~/clones$ crm_verify --live-check -V
> >
> > crm_verify[7640]: 2010/01/05_09:11:49 WARN: get_target_role: ms-
> world1
> > is not part of a master/slave resource, a target-role of 'Master'
> > makes no sense
> >
> > Warnings found during check: config may not be valid
> >
> >
> >
> > I think my configuration is valid...is this warning valid?
> 
> yes. as it says:
> target role of Master makes no sense.
> 
> where, when, or if, a resource is promoted does not depend on its
> target
> role, but on "master scores".
> 
> there has even been a bug in pacemaker (up to 1.0.3? 1.0.4?) where a
> "target-role=Master" resulted in the resource being (tried to be)
> promoted everywhere, disregarding any master-max settings.
> 
> as a side note, also try to avoid location constraints on Master roles.
> in our experience it can confuse the crm into believing that it would
> always be ok to promote on those nodes, which is not necessarily the
> case.
> ymmv.
> it probably depends on the behaviour of the RA as well.
> 
> 
> --
> : Lars Ellenberg
> : LINBIT | Your Way to High Availability
> : DRBD/HA support and consulting http://www.linbit.com
> 
> DRBD(r) and LINBIT(r) are registered trademarks of LINBIT, Austria.
> 
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