[ClusterLabs] How to correctly stop cluster with active stonith watchdog?
arvidjaar at gmail.com
Sun May 5 01:43:09 EDT 2019
30.04.2019 19:47, Олег Самойлов пишет:
>> 30 апр. 2019 г., в 19:38, Andrei Borzenkov <arvidjaar at gmail.com>
>> 30.04.2019 19:34, Олег Самойлов пишет:
>>>> No. I simply want reliable way to shutdown the whole cluster
>>>> (for maintenance).
>>> Official way is `pcs cluster stop --all`.
>> pcs is just one of multiple high level tools. I am interested in
>> plumbing, not porcelain.
> Yep, in such case pcs do ssh connection to all nodes to down
> pacemaker and corosync.
> Well, for mantaince you can look for clusterlab plumbing analog of
> `pcs node standby`, this command doesn’t stop corosync and pacemaker,
> but shutdown all resources on that node, so quorum will not lost.
I appreciate the efforts, but the question was not "how to do
maintenance" but "how to stop cluster". There are reasons to do it.
Consider emergency shutdown due to power outage. I definitely would not
like nodes started to panic in the middle of shutdown.
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