Re: Pacific 16.2.15 `osd noin`

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On 02-04-2024 15:09, Zakhar Kirpichenko wrote:
Hi,

I'm adding a few OSDs to an existing cluster, the cluster is running with
`osd noout,noin`:

   cluster:
     id:     3f50555a-ae2a-11eb-a2fc-ffde44714d86
     health: HEALTH_WARN
             noout,noin flag(s) set

Specifically `noin` is documented as "prevents booting OSDs from being
marked in". But freshly added OSDs were immediately marked `up` and `in`:

   services:
     ...
     osd: 96 osds: 96 up (since 5m), 96 in (since 6m); 338 remapped pgs
          flags noout,noin

# ceph osd tree in | grep -E "osd.11|osd.12|osd.26"
  11    hdd    9.38680                  osd.11       up   1.00000  1.00000
  12    hdd    9.38680                  osd.12       up   1.00000  1.00000
  26    hdd    9.38680                  osd.26       up   1.00000  1.00000

Is this expected behavior? Do I misunderstand the purpose of the `noin`
option?

We have "mon_osd_auto_mark_new_in = false" configured for this reason. With this configuration option setting OSDs "IN" becomes a manual operation.

If you don't want to have OSDs marked in automatically after they have been marked out you can use this option as well:

mon_osd_auto_mark_auto_out_in = false.

Gr. Stefan
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