[Pacemaker] Recovery after lost quorum
Andrew Beekhof
andrew at beekhof.net
Wed Jun 5 01:34:58 UTC 2013
On 05/06/2013, at 10:43 AM, Denis Witt <denis.witt at concepts-and-training.de> wrote:
>
> Am 05.06.2013 um 02:15 schrieb Andrew Beekhof <andrew at beekhof.net>:
>
>>> Jun 5 01:11:06 test4 pengine: [18625]: WARN: cluster_status: We do not have quorum - fencing and resource management disabled
>>> Jun 5 01:11:06 test4 pengine: [18625]: notice: LogActions: Start pingtest:0#011(test4 - blocked)
>>> Jun 5 01:11:06 test4 pengine: [18625]: notice: LogActions: Start drbd:0#011(test4 - blocked)
>>
>> Here's your reason. We didn't get quorum until:
>
>>> Jun 5 01:11:11 test4 crmd: [18626]: notice: ais_dispatch_message: Membership 128: quorum acquired
>
> Hi Andrew,
>
> I thought this means that there is a quorum. Anyway, crm status says:
>
> root at test4:~# crm status
> ============
> Last updated: Wed Jun 5 02:36:20 2013
> Last change: Tue Jun 4 17:55:28 2013 via crm_attribute on backup3
> Stack: openais
> Current DC: test4 - partition with quorum
> Version: 1.1.7-ee0730e13d124c3d58f00016c3376a1de5323cff
> 3 Nodes configured, 3 expected votes
> 8 Resources configured.
> ============
>
> Online: [ test4 backup3 ]
> OFFLINE: [ test3 ]
>
> But no resources are started, so I suspect there really is quorum.
Can you send me the output of cibadmin -Ql please?
Perhaps those two resources are blocked for other reasons.
> Anyway, I noticed, that, if I start pacemaker on the backup3-node the services are restarted, even if it sometime takes some time. So I might have to live with the "not installed" messages and start the backup3-node in standby-Mode as long no one comes up with a better solution. Maybe I'll fake the status of the monitors on this node and add some location-rules to avoid that resources will be moved to this node.
>
> Thanks for your help.
>
> Best regards,
> Denis Witt
>
>
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