Hello, On 11/08/2011 10:42 PM, Yves Trudeau wrote: > Hi, > I am currently working on a replication solution adding logic to the > mysql RA and I need to be able to turn ON/OFF a virtual IP based on a > node attribute (Florian suggestion). In order to achieve this, I > created a clone set of IPaddr2 RA and a location rule using the node > attribute setting. It works almost correctly except that clone members > stick a bit too much and don't failback. Here's my config: > > node testvirtbox1 \ > attributes IP="10.2.2.160" > node testvirtbox2 \ > attributes IP="10.2.2.161" \ > attributes standby="off" > node testvirtbox3 \ > attributes IP="10.2.2.162" \ > attributes standby="off" > primitive reader_vip_1 ocf:heartbeat:IPaddr2 \ > params ip="10.2.2.171" nic="eth0" > clone reader_vips reader_vip_1 \ > meta globally-unique="true" clone-max="3" clone-node-max="3" > notify="true" ordered="true" interleave="true" > location No-reader-vip-loc reader_vips \ > rule $id="No-reader-vip-rule" -inf: readerOK eq 0 > colocation reader_vips_dislike_reader_vips -200: reader_vips reader_vips > property $id="cib-bootstrap-options" \ > dc-version="1.0.11-a15ead49e20f047e129882619ed075a65c1ebdfe" \ > cluster-infrastructure="openais" \ > expected-quorum-votes="3" \ > stonith-enabled="false" \ > no-quorum-policy="ignore" > rsc_defaults $id="rsc-options" \ > resource-stickiness="100" > > > > - Upon startup, the reader_vips clone are well spread on all 3 nodes > - Running "crm_attribute -N testvirtbox1 -l reboot --name readerOK -s > mysql_replication -v '0'" removes the clone set member from > testvirtbox1 as expected and add it to testvirtbox2 or testvirtbox3 > - But... running "crm_attribute -N testvirtbox1 -l reboot --name > readerOK -s mysql_replication -v '1'" does not make it come back, one of > the other node still have 2 clone members > > Is there a way to make it come back normally or is there something I > don't do correctly?
You can expand your location constraint with a rule to add a score of 200 if "readerOK eq 1" to override stickiness ... and you might also want to check if the attribute is already defined. Regards, Andreas -- Need help with Pacemaker? http://www.hastexo.com/now > > Regards, > > Yves > > _______________________________________________ > 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://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker
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_______________________________________________ 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://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker
