HEALTH_WARN, 3 daemons have recently crashed

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Hi,

last week I upgraded our ceph to 14.2.5 (from 14.2.4) and either during
the procedure or shortly after that, some osds crashed. I re-initialised
them and that should be enough to fix everything, I thought.

I looked a bit further and I do see a lot of lines like this (which are
worrying I suppose):

ceph.log:2020-01-10 10:06:41.049879 mon.cephmon3 (mon.0) 234423 :
cluster [DBG] osd.97 reported immediately failed by osd.67

osd.109
osd.133
osd.139
osd.111
osd.38
osd.65
osd.38
osd.65
osd.97

Now everything seems to be OK, but the WARN status remains. Is this a
"feature" of 14.2.5 or am I missing something?

Below the output of `ceph -s`

Cheers

/Simon

10:13 [root@cephmon1 ~]# ceph -s
  cluster:
    id:     b489547c-ba50-4745-a914-23eb78e0e5dc
    health: HEALTH_WARN
            3 daemons have recently crashed

  services:
    mon: 3 daemons, quorum cephmon3,cephmon1,cephmon2 (age 27h)
    mgr: cephmon3(active, since 27h), standbys: cephmon1, cephmon2
    mds: cephfs:1 {0=cephmds1=up:active} 1 up:standby
    osd: 168 osds: 168 up (since 6m), 168 in (since 3d); 11 remapped pgs

  data:
    pools:   10 pools, 5216 pgs
    objects: 167.61M objects, 134 TiB
    usage:   245 TiB used, 1.5 PiB / 1.8 PiB avail
    pgs:     1018213/1354096231 objects misplaced (0.075%)
             5203 active+clean
             10   active+remapped+backfill_wait
             2    active+clean+scrubbing+deep
             1    active+remapped+backfilling

  io:
    client:   149 MiB/s wr, 0 op/s rd, 55 op/s wr
    recovery: 0 B/s, 30 objects/s

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