21.02.2014 13:45, Lars Marowsky-Bree wrote: > On 2014-02-21T13:02:23, Vladislav Bogdanov <bub...@hoster-ok.com> wrote: > >> It could be nice feature to have kind of general SLA concept (it could >> be very similar to the utilization one from the resource configuration >> perspective), so resources try to move or live migrate out of nodes >> which have SLA attributes below the configured threshold. That SLA >> attributes should probably go to the status section (to not trigger >> transition aborts on attribute updates) and be managed both internally >> by pacemaker (expansion to the recent "node-load" concept) and by >> resource agents (like Health-* as noted by Frank). >> >> Pacemaker already has (almost?) all pieces of code to do that ('rule' >> and 'score-attribute'), but in my taste it is still not enough general >> in contrast to 'utilization' feature. > > The SystemHealth and node health features are clearly meant to achieve > this; what's missing from your point of view?
Only ease of configuration I think (for 'custom' node-health-strategy which I think is most suitable for my use-cases). I would prefer to have "constraints" not in location rules, but in resource definition. I really like how utilization handling is implemented at the configuration/XML level, and I think it is worth having the same for SLA/health. Best, Vladislav _______________________________________________ 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