[Pacemaker] BUG: is-managed="true" moves resources around

[Andrew Beekhof]

On Wed, Dec 16, 2009 at 11:21 AM, Andrew Beekhof <andrew at beekhof.net> wrote:
> On Tue, Dec 15, 2009 at 5:37 PM, Rasto Levrinc <rasto.levrinc at linbit.com> wrote:
>> Hi Beekhof,
>>
>> I've found again a Pacemaker bug or I am doing again something wrong. :)
>>
>> So I have a group with two dummy resources that are both unmanaged but
>> running. The group has colocation constraint with score -INFINITY with the
>> third dummy resource. The group resources are running on one node and the
>> third dummy resource on the other.
>>
>> So far so good.
>>
>> Now I set the first resource in the group to be managed by pacemaker and
>> all managed resources decide to move to the opposite nodes. This I would
>> not expect. Resource stickiness is set. If I reverse the colocation
>> constraint (exchange "rsc" and "with-rsc") it works ok.
>
> is-managed doesn't cause the move, it just allows pacemaker to perform it.
> the real issue is the constraint.
>
> Seems like you might have found a bug in the way the scores are merged
> for groups.
>

Fixed:
   http://hg.clusterlabs.org/pacemaker/stable-1.0/rev/bff0ba217110