[ClusterLabs] two virtual domains start and stop every 15 minutes

[Lentes, Bernd]

----- Am 14. Jun 2019 um 21:20 schrieb kgaillot kgaillot at redhat.com:

> On Fri, 2019-06-14 at 18:27 +0200, Lentes, Bernd wrote:
>> Hi,
>> 
>> i had that problem already once but still it's not clear for me what
>> really happens.
>> I had this problem some days ago:
>> I have a 2-node cluster with several virtual domains as resources. I
>> put one node (ha-idg-2) into standby, and two running virtual domains
>> were migrated to the other node (ha-idg-1). The other virtual domains
>> were already running on ha-idg-1.
>> Since then the two virtual domains which migrated (vm_idcc_devel and
>> vm_severin) start or stop every 15 minutes on ha-idg-1.
>> ha-idg-2 resides in standby.
>> I know that the 15 minutes interval is related to the "cluster-
>> recheck-interval".
>> But why are these two domains started and stopped ?
>> I looked around much in the logs, checked the pe-input files, watched
>> some graphs created by crm_simulate with dotty ...
>> I always see that the domains are started and 15 minutes later
>> stopped and 15 minutes later started ...
>> but i don't see WHY. I would really like to know that.
>> And why are the domains not started from the monitor resource
>> operation ? It should recognize that the domain is stopped and starts
>> it again. My monitor interval is 30 seconds.
>> I had two errors pending concerning these domains, a failed migrate
>> from ha-idg-1 to ha-idg-2, form some time before.
>> Could that be the culprit ?
>> 
>> I still have all the logs from that time, if you need information
>> just let me know.
> 
> Yes the logs and pe-input files would be helpful. It sounds like a bug
> in the scheduler. What version of pacemaker are you running?
> 

Hi,

here are the log and some pe-input files: https://hmgubox.helmholtz-muenchen.de/d/f28f6961722f472eb649/
On 6th of june at 15:41:28 i issued "crm node standby ha-idg-2", then the trouble began.
I'm running pacemaker-1.1.19+20181105.ccd6b5b10-3.10.1.x86_64 on SLES 12 SP4 and kernel 4.12.14-95.13.

Bernd
 

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