A quick addendum to this message: The log files I provided actually continue until the resources do get started on the host. The trigger for that is the 6-minute failure-timeout timer that pops. As can be seen in pe-input-50, the resources conntrackd, condition, sub-ospfd and sub-ripd are in slave on both hosts and sub-squid is not started on either. This shows that the desired end-state of the transitions produced with pe-input-49 is never reached.
James On Feb 6, 2013, at 1:41 PM, James Guthrie <j...@open.ch> wrote: > Hi David, > > Unfortunately crm_report doesn't work correctly on my hosts as we have > compiled from source with custom paths and apparently the crm_report and > associated tools are not built to use the paths that can be customised with > autoconf. > > Despite that, I have done some investigation and think I may have found an > inconsistency. I have attached the pacemaker-relevant syslog, including the > pe-input files. The logfile starts where pacemaker detects that sub-squid is > not running on mu. It then fails over to nu, where two further failures take > place. In order to recover from these failures, the pengine produces > transitions 106, 107, 108 and 109, with the corresponding pe-input files 46, > 47, 48 and 49. > > The way I understand it, pacemaker works through the transitions until > something happens from outside, at which point the transitions are > recalculated and pacemaker continues on. > > Using crm_simulate to observe the transitions that should happen tells me > that the transitions that were calculated from pe-input-49 ought to have > resulted in the resources conntrackd, condition, sub-ospfd, sub-ripd and > sub-squid being promote to master. In fact, this never happens, but the crmd > reports the transition as being complete. It appears as though nowhere is it > acknowledged that the current state is not the desired outcome as calculated > by the pengine. Is it possible that this is a bug? > > Regards, > James > > <pacemaker-not-starting-resources.tar.gz> > On Feb 5, 2013, at 7:41 PM, David Vossel <dvos...@redhat.com> wrote: > >> >> >> ----- Original Message ----- >>> From: "James Guthrie" <j...@open.ch> >>> To: "The Pacemaker cluster resource manager" <pacemaker@oss.clusterlabs.org> >>> Sent: Tuesday, February 5, 2013 8:12:57 AM >>> Subject: Re: [Pacemaker] Pacemaker resource migration behaviour >>> >>> Hi all, >>> >>> as a follow-up to this, I realised that I needed to slightly change >>> the way the resource constraints are put together, but I'm still >>> seeing the same behaviour. >>> > >>> Below are an excerpt from the logs on the host and the revised xml >>> configuration. In this case, I caused two failures on the host mu, >>> which forced the resources onto nu then I forced two failures on nu. >>> What can be seen in the logs are the two detected failures on nu >>> (the "warning: update_failcount:" lines). After the two failures on >>> nu, the VIP is migrated back to mu, but none of the "support" >>> resources are promoted with it. >> >> I can't tell much from this output. >> >> Run the steps you use to reproduce this and create a crm_report of the issue >> so we can see both the logs and pengine transition files that proceed this. >> >> -- Vossel >> >> >>> Regards, >>> James >>> >> >> _______________________________________________ >> 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 _______________________________________________ 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
