[ClusterLabs] Antw: Clone resource active only if all nodes are active

[aluno3 at poczta.onet.pl]

On 22.01.2018 16:44, Ken Gaillot wrote:
> On Mon, 2018-01-22 at 14:18 +0100, Ulrich Windl wrote:
>> Did you try  meta clone-node-min=3?
> clone-min does not affect the clone it's configured on, but rather
> anything ordered relative to it via a constraint. It's for the case
> where a resource needs a certain number of instances running before
> other services can consider it effective.
>
> It could be helpful here if the reason you want the service to stop is
> to get some other resource to stop.
>
>> "aluno3 at poczta.onet.pl" <aluno3 at poczta.onet.pl> schrieb am
>>>>> 22.01.2018 um 13:29
>> in Nachricht <844fdf99-1680-3ed8-6afc-8b3e2ddeaabf at poczta.onet.pl>:
>>> I need to create configuration when one resource is active on all
>>> nodes
>>> and is only active when all nodes are active. It should has the 
> There's no built-in capability for that.
>
> It's possible you could get something to work using clone
> notifications. You could write a custom OCF agent that simply sets a
> local node attribute to 0 or 1. If
> OCF_RESKEY_CRM_meta_notify_inactive_resource is empty, it would set it
> to 1, otherwise it would set it to 0. (You could use
> ocf:pacemaker:attribute from a recent Pacemaker as a starting point.)
>
> Then you could use a rule to locate your desired resource where the
> attribute is set to 1.
>
>
> http://clusterlabs.org/pacemaker/doc/en-US/Pacemaker/1.1/html-single/Pa
> cemaker_Explained/index.html#_clone_resource_agent_requirements
>
> http://clusterlabs.org/pacemaker/doc/en-US/Pacemaker/1.1/html-single/Pa
> cemaker_Explained/index.html#idm140583511697312
It seems that idea is going to work :)

Thank you for the all propositions.
>>> same
>>> priority on all nodes. The major target is to have my service
>>> started
>>> when all nodes are active and to have my service stopped in
>>> "degraded"
>>> state.
>>>
>>> I tried clone resource with different requires options but when one
>>> of
>>> the node is suspended resource is still active on online node. 
>>>
>>> Is there any options to have such type of resource?
>>
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