On 11 Jun 2014, at 10:59 pm, Patrick Hemmer <pacema...@feystorm.net> wrote:
> From: Andrew Beekhof <and...@beekhof.net> > Sent: 2014-06-11 02:36:15 EDT > To: The Pacemaker cluster resource manager <pacemaker@oss.clusterlabs.org> > Subject: Re: [Pacemaker] resources not rebalancing > >> On 11 Jun 2014, at 3:44 pm, Patrick Hemmer <pacema...@feystorm.net> >> wrote: >> >> >>>> Right. But each node still has 4998000+ units with which to accommodate >>>> something that only requires 10000. >>>> Thats about 0.2% of the remaining capacity, so wherever it starts, its >>>> hardly making a dint. >>>> >>>> >>> You're thinking of the 'utilization' placement strategy. >>> >> If something is "out of balance" by 0.2%... thats still quite balanced. >> > > I agree, but that's not how the balanced strategy is documented as working. > It says resources are balanced based on the amount of free capacity on each > node, not based on approximate percentages. I know, i was just saying... You filed a bug right? We'll get it fixed, just not today. > However, to nullify this argument, I adjusted the numbers: > # crm_simulate -URL > > Current cluster status: > Online: [ i-053f1f59 i-083f1f54 i-093f1f55 ] > > dummy1 (ocf::pacemaker:Dummy): Started i-053f1f59 > Clone Set: dummy2-clone [dummy2] (unique) > dummy2:0 (ocf::pacemaker:Dummy): Started i-053f1f59 > dummy2:1 (ocf::pacemaker:Dummy): Started i-083f1f54 > dummy2:2 (ocf::pacemaker:Dummy): Started i-093f1f55 > dummy2:3 (ocf::pacemaker:Dummy): Started i-083f1f54 > dummy2:4 (ocf::pacemaker:Dummy): Started i-093f1f55 > > Utilization information: > Original: i-053f1f59 capacity: cpu=50000 mem=3840332000 > Original: i-083f1f54 capacity: cpu=50000 mem=3840332000 > Original: i-093f1f55 capacity: cpu=50000 mem=3840332000 > calculate_utilization: dummy1 utilization on i-053f1f59: cpu=40000 > calculate_utilization: dummy2:1 utilization on i-083f1f54: cpu=2000 > calculate_utilization: dummy2:2 utilization on i-093f1f55: cpu=2000 > calculate_utilization: dummy2:0 utilization on i-053f1f59: cpu=2000 > calculate_utilization: dummy2:3 utilization on i-083f1f54: cpu=2000 > calculate_utilization: dummy2:4 utilization on i-093f1f55: cpu=2000 > Remaining: i-053f1f59 capacity: cpu=8000 mem=3840332000 > Remaining: i-083f1f54 capacity: cpu=46000 mem=3840332000 > Remaining: i-093f1f55 capacity: cpu=46000 mem=3840332000 > > dummy1 is sharing a node with dummy2:0. The node they are on has > significantly less capacity, and is almost depleted, while the others are > largely underutilized. > > _______________________________________________ > 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
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