[ClusterLabs] Failover to spare node

Vladislav Bogdanov bubble at hoster-ok.com
Thu Oct 22 19:26:12 UTC 2015


22.10.2015 19:49, Andrei Borzenkov wrote:
> Let's say I have a pool of nodes and multiple services, somehow
> distributed across them. I would like to keep one node as "spare",
> without services by default, and if any of "worker" nodes fail, services
> that were running there should be relocated to spare together.

placement-strategy=minimal ?

>
> This ensures each service keeps the same resources available and does
> not compete with services on other nodes.
>
> It obviously can be achieved with explicit location constraints on each
> service for "primary" and "secondary" node; but is there some generic
> trick that avoids configuring each and every service?
>
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