Re: OSD stuck down

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After cluster enters healthy state mgr should re-check stray daemons, a lot
of activities are on hold while cluster is in warning state.

In the event it does not disappear after cluster is healthy than mgr
restart should help.



Kind regards,
Nino


On Fri, Jun 16, 2023 at 10:24 PM Nicola Mori <mori@xxxxxxxxxx> wrote:

> The osd daemon finally disappeared without further intervention. I guess I
> should have had more patience and wait the purge process to finish.
> Thanks to everybody who helped.
>
> Nicola
>
> Il 15 giugno 2023 15:02:16 CEST, Nicola Mori <mori@xxxxxxxxxx> ha scritto:
> >
> >I have been able to (sort-of) fix the problem by removing the problematic
> OSD, zapping the disk and starting a new OSD. The new OSD is backfilling,
> but now the problem is that some parts of Ceph are still waiting for the
> OSD removal, and the OSD (despite not running anymore on the host) is seen
> as a stray daemon:
> >
> ># ceph health detail
> >HEALTH_WARN 1 stray daemon(s) not managed by cephadm
> >[WRN] CEPHADM_STRAY_DAEMON: 1 stray daemon(s) not managed by cephadm
> >    stray daemon osd.34 on host balin not managed by cephadm
> >
> ># ceph osd tree | grep 34
> > 34    hdd    1.81940          osd.34      down         0  1.00000
> >
> ># ceph orch osd rm status
> >OSD  HOST   STATE                    PGS  REPLACE  FORCE  ZAP    DRAIN
> STARTED AT
> >34   balin  done, waiting for purge    0  False    True   False
> >
> ># ceph orch osd rm stop osd.34
> >Unable to find OSD in the queue: osd.34
> >
> >I restarted the mgrs but it didn't help. Any suggestion?
> >
> >Nicola
>
> --
> Nicola Mori, Ph.D.
> INFN sezione di Firenze
> Via Bruno Rossi 1, 50019 Sesto F.no (Italy)
> +390554572660
> mori@xxxxxxxxxx
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