On Mon, Feb 06, 2012 at 04:48:26PM -0800, Chet Burgess wrote: > Greetings, > > I'm some what new to pacemaker and have been playing around with a > number of configurations in a lab. Most recently I've been testing a > multistate resource using the ofc:pacemaker:Stateful example RA. > > While I've gotten the agent to work and notice that if I shutdown or > kill a node the resources migrate I can't seem to figure out the > proper way to migrate the resource between nodes when they are both > up. > > For regular resources I've used "crm resource migrate <rsc>" without > issue. However when I try this with a multistate resource it doesn't > seem to work. When I run the command it just puts the slave node into > a stopped state. If I try and tell it to migrate specifically to the > slave node it claims to already be running their (which I suppose in a > sense it is).
the crm shell does not support roles for the "move" or "migrate" command (yet; maybe in newer versions. Dejan?). What you need to do is set a location constraint on the role. * force master role off from one node: location you-name-it resource-id \ rule $role=Master -inf: \ #uname eq node-where-it-should-be-slave * or force master role off from all but one node, note the double negation in this one: location you-name-it resource-id \ rule $role=Master -inf: \ #uname ne node-where-it-should-be-master Cheers, Lars --- : Lars Ellenberg : LINBIT | Your Way to High Availability : DRBD/HA support and consulting http://www.linbit.com > The only method I've found to safely and reliable migrate a multistate > resource from one node to another is I think it has something to do > with the resource constraints I used to prefer a particular node, but > I'm not entirely sure how the constraints and the master/slave state > updating stuff works. > > Am I using the wrong tool to migrate a multistate resource or is my > configuration wrong in some way? Any input greatly appreciated. > Thank you. > > > Configuration: > r...@tst3.local1.mc:/home/cfb$ crm configure show > node tst3.local1.mc.metacloud.com > node tst4.local1.mc.metacloud.com > primitive stateful-test ocf:pacemaker:Stateful \ > op monitor interval="30s" role="Slave" \ > op monitor interval="31s" role="Master" > ms ms-test stateful-test \ > meta clone-node-max="1" notify="false" master-max="1" > master-node-max="1" target-role="Master" > location ms-test_constraint_1 ms-test 25: tst3.local1.mc.metacloud.com > location ms-test_constraint_2 ms-test 20: tst4.local1.mc.metacloud.com > property $id="cib-bootstrap-options" \ > cluster-infrastructure="openais" \ > dc-version="1.1.5-01e86afaaa6d4a8c4836f68df80ababd6ca3902f" \ > last-lrm-refresh="1325273678" \ > expected-quorum-votes="2" \ > no-quorum-policy="ignore" \ > stonith-enabled="false" > rsc_defaults $id="rsc-options" \ > resource-stickiness="100" > > -- > Chet Burgess > c...@liquidreality.org > > > > > _______________________________________________ > Pacemaker mailing list: Pacemaker@oss.clusterlabs.org > http://oss.clusterlabs.org/mailman/listinfo/pacemaker > > Project Home: http://www.clusterlabs.org > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf > Bugs: http://bugs.clusterlabs.org _______________________________________________ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org