[ClusterLabs] VirtualDomain - node map - ?

lejeczek peljasz at yahoo.co.uk
Mon Apr 17 06:23:03 EDT 2023

On 17/04/2023 06:17, Andrei Borzenkov wrote:
> On 16.04.2023 16:29, lejeczek via Users wrote:
>> On 16/04/2023 12:54, Andrei Borzenkov wrote:
>>> On 16.04.2023 13:40, lejeczek via Users wrote:
>>>> Hi guys
>>>> Some agents do employ that concept of node/host map 
>>>> which I
>>>> do not see in any manual/docs that this agent does - would
>>>> you suggest some technique or tips on how to achieve
>>>> similar?
>>>> I'm thinking specifically of 'migrate' here, as I 
>>>> understand
>>>> 'migration' just uses OS' own resolver to call migrate_to
>>>> node.
>>> No, pacemaker decides where to migrate the resource and
>>> calls agents on the current source and then on the
>>> intended target passing this information.
>> Yes pacemaker does that but - as I mentioned - some agents
>> do employ that "internal" nodes map "technique".
>> I see no mention of that/similar in the manual for
>> VirtualDomain so I asked if perhaps somebody had an idea of
>> how to archive such result by some other means.
> What about showing example of these "some agents" or 
> better describing what you want to achieve?
'ocf_heartbeat_galera' is one such agent.
But after more fiddling with 'VirtualDomain' I understand 
this agent does offer this functionality tough not in that 
clear way nor to that full extent, but it's there.
So, what I needed was possible to achieve.
thanks, L.

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