If you are using CephFS on Pacific v16.2.14(+), the MDS config `defer_client_eviction_on_laggy_osds' is enabled by default. This config is used to not evict cephfs clients if OSDs are laggy[1]. However, this can result in a single client holding up the MDS in servicing other clients. To avoid this, please disable the config by executing ceph config set mds defer_client_eviction_on_laggy_osds false This issue doesn't affect any Quincy or Reef releases. Furthermore, the config is being disabled by default[2] till the fix is being worked on. [1]: https://tracker.ceph.com/issues/58023 [2]: https://tracker.ceph.com/issues/64685 -- Cheers, Venky