[Pacemaker] Location based on resource utilization

[agutxi Agustin]

Thank you Andreas!
that's exactly what I was looking for :)
I guess I was stuck with the documents from the older release.

however, if you know the answer, I still would like to know (once I
posed myself the question, I'm curious) if it's a good practice to
mess with the CRM from the resource agents script code or not.

Regards,
agutxi

2011/10/25 Andreas Kurz <andreas at hastexo.com>:
> On 10/25/2011 01:36 AM, agutxi Agustin wrote:
>> Hi list,
>> I'm new to pacemaker (though I've fought my battles with former
>> heartbeat), so please don't go harsh on me ;D
>> I have read through all the documentation I found in the internet for
>> corosync/pacemaker/ras and have done and tested a few lab scenarios to
>> build up my knowledge, but in this case, I couldn't figure it out and
>> Google sent me over and over to the same posts, so I decided to ask
>> for some clues
>
> then you asked google the wrong questions ;-)
>
> http://theclusterguy.clusterlabs.org/post/570381880/feature-spotlight-utilization
>
> ... might be the feature you are looking for.
>
> Regards,
> Andreas
>
> --
> Need help with Pacemaker?
> http://www.hastexo.com/now
>
>
>>
>> Im planning a pacemaker design based on resource utilization.
>> I want to have a number of light VMs running on top of a few phisical
>> machines (PMs from now on).
>> Ideally, every PM will be able to run n VMs, but will be running n-1,
>> so the load will be distributed among the nodes instead of overloading
>> one if all are available, and fall back to other nodes if one PM
>> fails,
>>
>> I have found no way to find the number of resources (same type, or
>> even global) running on a node and use that in a rule for location
>> constraint.
>> Is this possible?
>> another way to do this would be to update some cluster nodes
>> properties in the Resource Agents operations code. Is this an accepted
>> and proper behaviour or is there a reason to avoid it?
>>
>> Thank you for your time,
>> agutxi @
>>
>>
>>
>>
>>
>>
>> --
>> "Human beings make life so interesting. Do you know, that in a
>> universe so full of wonders, they have managed to invent boredom."
>> Terry Pratchet - Hogfather
>>
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