On Tue, 12 Dec 2023 at 16:17, Andrei Borzenkov <arvidj...@gmail.com> wrote:
> On Fri, Dec 8, 2023 at 5:44 PM Artem <tyom...@gmail.com> wrote: > > pcs constraint location FAKE3 rule score=0 pingd lt 1 or not_defined > pingd > > pcs constraint location FAKE4 rule score=0 pingd lt 1 or not_defined > pingd > > pcs constraint location FAKE3 rule score=125 pingd gt 0 or defined pingd > > pcs constraint location FAKE4 rule score=125 pingd gt 0 or defined pingd > > > > These rules are contradicting. You set the score to 125 if pingd is > defined and at the same time set it to 0 if the score is less than 1. > To be "less than 1" it must be defined to start with so both rules > will always apply. I do not know how the rules are ordered. Either you > get random behavior, or one pair of these rules is effectively > ignored. > "pingd lt 1 or not_defined pingd" means to me ==0 or not_defined, that is ping fails to ping GW or fails to report to corosync/pacemaker. Am I wrong? "pingd gt 0 or defined pingd" means to me that ping gets reply from GW and reports it to cluster. Are they really contradicting? I read this article and tried to do in a similar way: https://habr.com/ru/articles/118925/ > > > Question #1) Why I cannot see accumulated score from pingd in > crm_simulate output? Only location score and stickiness. > > pcmk__primitive_assign: FAKE3 allocation score on lustre3: 210 > > pcmk__primitive_assign: FAKE3 allocation score on lustre4: 90 > > pcmk__primitive_assign: FAKE4 allocation score on lustre3: 90 > > pcmk__primitive_assign: FAKE4 allocation score on lustre4: 210 > > Either when all is OK or when VM is down - score from pingd not added to > total score of RA > > > > > > Question #2) I shut lustre3 VM down and leave it like that. pcs status: > > * FAKE3 (ocf::pacemaker:Dummy): Stopped > > * FAKE4 (ocf::pacemaker:Dummy): Started lustre4 > > * Clone Set: ping-clone [ping]: > > * Started: [ lustre-mds1 lustre-mds2 lustre-mgs lustre1 lustre2 > lustre4 ] << lustre3 missing > > OK for now > > VM boots up. pcs status: > > * FAKE3 (ocf::pacemaker:Dummy): FAILED (blocked) [ lustre3 > lustre4 ] << what is it? > > * Clone Set: ping-clone [ping]: > > * ping (ocf::pacemaker:ping): FAILED lustre3 (blocked) << > why not started? > > * Started: [ lustre-mds1 lustre-mds2 lustre-mgs lustre1 lustre2 > lustre4 ] > > If this is full pcs status output, I miss stonith resource. > > I have "pcs property set stonith-enabled=false" and don't plan to use it. I want simple active-passive cluster, like Veritas or ServiceGuard with most duties automated. And our production servers have their iBMC in a locked network segment
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