Ceph: 1 clients failing to respond to cache pressure, the active Ceph MGR is the client causing the issue.

Issue

The Ceph cluster is in a HEALTH_WARNwith: 1 clients failing to respond to cache pressure, the active Ceph MGR is the client causing the issue.

This KCS is extremely specific. It only applies when the issue 1 clients failing to respond to cache pressure is created by the Active Ceph MGR (manager).

Example:
Please note that the 1 client causing the issue (edon-3) is also the Active Ceph MGR.

[root@edon-0 ~]# ceph status

cluster:
    id:     8d23xxxx-Redacted-Cluster-ID-yyyya00794f2
    health: HEALTH_WARN
            1 clients failing to respond to cache pressure  <--- Here

  services:
    mon: 3 daemons, quorum edon-3,edon-2,edon-1 (age 10d)
    mgr: edon-3(active, since 3w), standbys: edon-2, edon-1  <--- Here
    mds: 2/2 daemons up, 1 standby
    osd: 324 osds: 324 up (since 3d), 324 in (since 3w)

  data:
    volumes: 1/1 healthy
    pools:   13 pools, 10625 pgs
    objects: 110.47M objects, 56 TiB
    usage:   173 TiB used, 442 TiB / 616 TiB avail
    pgs:     10625 active+clean

  io:
    client:   29 MiB/s rd, 1.5 GiB/s wr, 1.19k op/s rd, 6.25k op/s wr


[root@edon-0 ~]# ceph health detail
HEALTH_WARN 1 clients failing to respond to cache pressure
[WRN] MDS_CLIENT_RECALL: 1 clients failing to respond to cache pressure
    mds.cephfs.edon-1.bnsdfe(mds.0): Client edon-3:edon-3 failing to respond to cache pressure client_id: 191198227  <--- Here