Re: [ClusterLabs] if resourceA starts @nodeA then start resource[xy] @node[xy]
On Tue, 2017-10-10 at 12:06 +0100, lejeczek wrote: > > On 26/09/17 13:15, Klaus Wenninger wrote: > > On 09/26/2017 02:06 PM, lejeczek wrote: > > > hi fellas > > > > > > can something like in the subject pacemaker do? And if yes then > > > how to > > > do it? > > > > You could bind ResourceA to nodeA and resource[xy] to node[xy] via > > location constraints. > > Afterwards you could make resource[xy] depend on ResourceA - > > without > > collocation. > > The actual commands (based on crmsh or pcs) to create these rules > > depend on thedistribution you are using. > > > > Regards, > > Klaus > > thanks, > I am probably hoping for too much(?) - without man made > constraints but sort of cluster logic would make these > decisions: wherever it decided to start/run resourceA then > rourceB would have to run on different(all or remaining > cluster's nodes). > > I'd only have to tell it something like: if you started > resourceA on nodeA then remaing(or maybe specific) resources > start on all but nodeA nodes. Sure, that's simply a colocation constraint with a negative score. For details, see http://clusterlabs.org/doc/en-US/Pacemaker/1.1-pcs/htm l-single/Pacemaker_Explained/index.html#s-resource-colocation (and/or the help for whatever higher-level tools you're using) > > > > I'm looking into docs but before I'd gone through it all I hoped > > > an > > > expert could tell. > > > > > > many thanks, L. -- Ken Gaillot___ Users mailing list: Users@clusterlabs.org http://lists.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
Re: [ClusterLabs] if resourceA starts @nodeA then start resource[xy] @node[xy]
On 26/09/17 13:15, Klaus Wenninger wrote: On 09/26/2017 02:06 PM, lejeczek wrote: hi fellas can something like in the subject pacemaker do? And if yes then how to do it? You could bind ResourceA to nodeA and resource[xy] to node[xy] via location constraints. Afterwards you could make resource[xy] depend on ResourceA - without collocation. The actual commands (based on crmsh or pcs) to create these rules depend on thedistribution you are using. Regards, Klaus thanks, I am probably hoping for too much(?) - without man made constraints but sort of cluster logic would make these decisions: wherever it decided to start/run resourceA then rourceB would have to run on different(all or remaining cluster's nodes). I'd only have to tell it something like: if you started resourceA on nodeA then remaing(or maybe specific) resources start on all but nodeA nodes. I'm looking into docs but before I'd gone through it all I hoped an expert could tell. many thanks, L. . ___ Users mailing list:Users@clusterlabs.org http://lists.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://lists.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
Re: [ClusterLabs] if resourceA starts @nodeA then start resource[xy] @node[xy]
On 09/26/2017 02:06 PM, lejeczek wrote: > hi fellas > > can something like in the subject pacemaker do? And if yes then how to > do it? You could bind ResourceA to nodeA and resource[xy] to node[xy] via location constraints. Afterwards you could make resource[xy] depend on ResourceA - without collocation. The actual commands (based on crmsh or pcs) to create these rules depend on thedistribution you are using. Regards, Klaus > I'm looking into docs but before I'd gone through it all I hoped an > expert could tell. > > many thanks, L. > > > . > > ___ > Users mailing list: Users@clusterlabs.org > http://lists.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://lists.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