On Thu, Nov 03, 2011 at 09:30:45PM +0100, Andreas Kurz wrote: > On 11/03/2011 12:38 PM, Lars Ellenberg wrote: > > On Thu, Nov 03, 2011 at 07:23:01PM +0900, 池田 淳子 wrote: > >> Hi, > >> > >>>> location rsc_location-1 msDRBD \ > >>>> rule role=master -inf: \ > >>>> (defined master-prmMySQL:0 and master-prmMySQL:0 gt 0) or \ > >>>> (defined master-prmMySQL:1 and master-prmMySQL:1 gt 0) > >>> > >>> Why not using two rules for this location constraint? I expect that to > >>> work the same way you want to express in your rule above. > >> > >> Do you mean the following rules? > >> > >> location rsc_location-1 msDRBD \ > >> rule role=master -inf: defined master-prmMySQL:0 and master-prmMySQL:0 gt > >> 0 \ > >> rule role=master -inf: defined master-prmMySQL:1 and master-prmMySQL:1 gt 0 > > > > I may be missing something obvious, but why not a colocation constraint > > between msDRBD and prmMySQL? > > > > something like > > colocation asdf -inf: msDRBD:Master prmMySQL:Master > > > > > > > > I don't think you miss something obvious, lars ;-) > > yes, that constraint you recommend would be the way to go ... I was only > commenting on the parenthesis not on the quality of the rules ;-)
Well, actually probably colocation asdf -inf: msDRBD:Master msMySQL:Master assuming prmMySQL was the primitive and msMySQL the ms resource. Anyways, variations of that theme should do fine. -- : Lars Ellenberg : LINBIT | Your Way to High Availability : DRBD/HA support and consulting http://www.linbit.com _______________________________________________ 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
