[Pacemaker] Temporarily disabling the cluster

Lars Marowsky-Bree lmb at suse.de
Tue Sep 9 16:02:36 EDT 2008

On 2008-09-09T21:45:30, Andrew Beekhof <beekhof at gmail.com> wrote:

>>>>> Basically:
>>>>> "Enable maintenance mode" means "is_managed == false" for everything
>>>>> (overrides individual resource settings?), plus disabling all
>>>>> monitors.
>>>>> "Disabling maintenance mode (going back to production" - probe
>>>>> everything everywhere again(?), reenable monitors, resume normal
>>>>> "is_managed" behaviour.
>>>>> Is that about it?
>>>> The problem is what should happen when a resource is "suspended" while
>>>> pacemaker's about to relocate it due to some other events ?
>>> In this mode, pacemaker would never move a resource.
>> Yes. And then all resources colocated/ordered with that are "pinned"
>> as well. So effectively, we have the whole cluster "half-suspended" as
>> well.
>> This leads me to think that "suspend" a specific resource is not a clean 
>> idea.
> I agree. I think we're talking about a global state here.

Works for me ;-)


Teamlead Kernel, SuSE Labs, Research and Development
SUSE LINUX Products GmbH, GF: Markus Rex, HRB 16746 (AG Nürnberg)
"Experience is the name everyone gives to their mistakes." -- Oscar Wilde

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