IO of hell with snaptrim

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Hello,

i have this state right now (see below). If i remove the nosnaptrim
flag, my IO dies and i dont know why.
When i remove all of my snapshots, will snaptrim then go away, too?



root@cluster5-node01:~# ceph -s
  cluster:
    id:     e1153ea5-bb07-4548-83a9-edd8bae3eeec
    health: HEALTH_WARN
            noout,nosnaptrim flag(s) set
            4 nearfull osd(s)
            1 pool(s) do not have an application enabled
            3 pool(s) nearfull

  services:
    mon: 3 daemons, quorum
cluster5-node01,cluster5-node02,cluster5-node03 (age 25h)
    mgr: cluster5-node03(active, since 26h), standbys:
cluster5-node02, cluster5-node01
    osd: 18 osds: 18 up (since 3h), 18 in (since 9M)
         flags noout,nosnaptrim

  data:
    pools:   3 pools, 1057 pgs
    objects: 5.11M objects, 17 TiB
    usage:   53 TiB used, 10 TiB / 63 TiB avail
    pgs:     1017 active+clean+snaptrim_wait
             40   active+clean

  io:
    client:   413 KiB/s rd, 3.9 MiB/s wr, 34 op/s rd, 364 op/s wr
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