>>> Christopher Harvey <c...@eml.cc> schrieb am 04.10.2016 um 22:36 in Nachricht <1475613371.3482889.745895529.6d249...@webmail.messagingengine.com>: > I was wondering if it is possible to ask pacemaker to add a resource > constraint and make sure that the majority of the cluster sees this > constraint modification or fail if quorum is not achieved. > > This is from within the context of a program issuing pacemaker commands, > not an operator, so race conditions are my main concern. > > If I cannot "set-and-check" a constraint modification using pacemaker > alone, is there some kind of sequence of bash commands that I could run > that would guarantee adequate propagation of my constraint?
I think you need to look at "config" and "action" separately: Action starts after the config changed. The config change is more or less immediate, but action may take a while. Impatience is an especially bad thing for pacemaker clusters it seems (i.e.: Don't start new actions (via config changes) before old actions are completed (according to the current config). > > Thanks, > Chris > > _______________________________________________ > Users mailing list: Users@clusterlabs.org > http://clusterlabs.org/mailman/listinfo/users > > Project Home: http://www.clusterlabs.org > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf > Bugs: http://bugs.clusterlabs.org _______________________________________________ Users mailing list: Users@clusterlabs.org http://clusterlabs.org/mailman/listinfo/users Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org