Re: Cephfs - MDS all up:standby, not becoming up:active

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On Fri, Sep 17, 2021 at 11:30 AM Robert Sander
<r.sander@xxxxxxxxxxxxxxxxxxx> wrote:
>
> On 17.09.21 16:40, Patrick Donnelly wrote:
>
> > Stopping NFS should not have been necessary. But, yes, reducing
> > max_mds to 1 and disabling allow_standby_replay is required. See:
> > https://docs.ceph.com/en/pacific/cephfs/upgrading/#upgrading-the-mds-cluster
>
> I do no read upgrade notes any more because I just run
>
> ceph orch upgrade start
>
> Why does the orchestrator not run the necessary steps?

With cephadm and the automatic deployment of standby-replay daemons,
the logic to reduce max_mds in cephadm was not enough. Unfortunately,
we (I) forgot to update cephadm to also disable standby-replay (which
was only recently added to the upgrade procedure). Sorry about that. I
am working on a fix [1]. I will also ensure testing is in place so the
community doesn't trip on this again.

[1] https://github.com/ceph/ceph/pull/43214

-- 
Patrick Donnelly, Ph.D.
He / Him / His
Principal Software Engineer
Red Hat Sunnyvale, CA
GPG: 19F28A586F808C2402351B93C3301A3E258DD79D

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