On Tue, Feb 14, 2012 at 2:58 AM, Tim Ward <tim.w...@ipaccess.com> wrote: > If I've got a bunch of resources no two of which may run on the same > node I can do this by creating and maintaining lots of constraints of > the form > > <rsc_colocation id="not-1-with-2" rsc="resource1" with-rsc="resource2" > score="-INFINITY"/> > <rsc_colocation id="not-17-with-14" rsc="resource17" > with-rsc="resource14" score="-INFINITY"/> > > etc (for n resources that's O(n squared) constraints, but I only need > each one of the two possible ways round). > > But that has scope for being somewhat tedious to code and a nightmare to > maintain (on deleting such a resource I'll have to write code which > tries to work out what constraints relating it to other resources might > exist and go round deleting them). Is there an easier and better way, > such as being able to say "no two instances of this primitive may run on > the same node"? > > (I have found a thread from 2010 which seems to suggest that someone was > trying something along the lines of > > colocation c -inf: ( A B C )
I believe you want it without the brackets. colocation c -inf: A B C > > but I didn't understand the discussion, particularly in relation to what > the brackets mean and whether they are needed and where they go, or > whether the guy actually got it working in the end.) > > Thanks > > Tim Ward > Brett Ward Limited - www.brettward.co.uk > > > > > > This message contains confidential information and may be privileged. If you > are not the intended recipient, please notify the sender and delete the > message immediately. > > ip.access Ltd, registration number 3400157, Building 2020, > Cambourne Business Park, Cambourne, Cambridge CB23 6DW, United Kingdom > > _______________________________________________ > 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