Hi, After upgrading a Ceph cluster to 14.2.17 with ceph-ansible (docker containers) the manager hits an issue: Module 'volumes' has failed dependency: No module named typing, python trace: 2021-03-12 17:04:22.358 7f299ac75e40 1 mgr[py] Loading python module 'volumes' 2021-03-12 17:04:22.458 7f299ac75e40 -1 mgr[py] Module not found: 'volumes' 2021-03-12 17:04:22.458 7f299ac75e40 -1 mgr[py] Traceback (most recent call last): File "/usr/share/ceph/mgr/volumes/__init__.py", line 2, in <module> from .module import Module File "/usr/share/ceph/mgr/volumes/module.py", line 10, in <module> from .fs.volume import VolumeClient File "/usr/share/ceph/mgr/volumes/fs/volume.py", line 13, in <module> from .operations.subvolume import open_subvol, create_subvol, remove_subvol, \ File "/usr/share/ceph/mgr/volumes/fs/operations/subvolume.py", line 8, in <module> from .versions import loaded_subvolumes File "/usr/share/ceph/mgr/volumes/fs/operations/versions/__init__.py", line 9, in <module> from .subvolume_v1 import SubvolumeV1 File "/usr/share/ceph/mgr/volumes/fs/operations/versions/subvolume_v1.py", line 9, in <module> from typing import List, Dict ImportError: No module named typing I created tracker [1] for this issue with this information. Not sure if non containerized deployments hit this issue as well. I will find thta out somewhere next week. FYI, Gr. Stefan [1]: https://tracker.ceph.com/issues/49770