>>> "john tillman" <[email protected]> schrieb am 06.10.2021 um 14:47 in Nachricht <[email protected]>: >> On Tue, 2021‑10‑05 at 18:05 ‑0400, john tillman wrote: >>> Is it possible for a resource *not* to stop if a colocation >>> constrained >>> resource stops on all nodes? >>> >>> My configuration per 'pcs constraint' output: >>> >>> Location Constraints: >>> Ordering Constraints: >>> Colocation Constraints: >>> TheService with TheVIP >>> TheVip with TheDB‑clone >>> Ticket Constraints: >>> >>> On boot, TheDB starts on a node and the other resources follow it and >>> start there too. All's well. >>> >>> (Understand that the scenario below is part of a testing step.) >>> >>> If I stop all the mysql database clones via "pcs resource disable" I >>> see >>> the VIP and service resources also stop. >>> >>> So is there a way to configure the cluster so the service and VIP >>> resources remain running on the last node they were on when all the >>> databases are stopped? >>> >>> Best Regards, >>> John >> >> Hi, >> >> Yes, make the colocation optional (i.e. use a finite integer score) >> ‑‑ >> Ken Gaillot <[email protected]> >> >> _______________________________________________ >> Manage your subscription: >> https://lists.clusterlabs.org/mailman/listinfo/users >> >> ClusterLabs home: https://www.clusterlabs.org/ >> >> > > Ah, thank you Ken. I'm glad it was something simple. And I apologize for > not including my INFINITY scores in my initial email. > > So I set the score on the VIP/DB constraint score to "100" and it is now > doing what I was looking for; when all the databases stop, the vip and > service keep running. > > I'm curious but would would a score of "1" been as successful as "100" or > as successful as "1000"?
Depends: If you add node preferences at score 2 and a colocation at score 1, the node preference would probably win. You get the idea... > > Best Regards, > John > > > > > > _______________________________________________ > Manage your subscription: > https://lists.clusterlabs.org/mailman/listinfo/users > > ClusterLabs home: https://www.clusterlabs.org/ _______________________________________________ Manage your subscription: https://lists.clusterlabs.org/mailman/listinfo/users ClusterLabs home: https://www.clusterlabs.org/
