Comment 0 for bug 1964322

    health: HEALTH_ERR
            Module 'devicehealth' has failed: PY_SSIZE_T_CLEAN macro must be defined for '#' formats

# dpkg -l | grep ceph
ii ceph-base 17.1.0-0ubuntu1 amd64 common ceph daemon libraries and management tools
ii ceph-common 17.1.0-0ubuntu1 amd64 common utilities to mount and interact with a ceph storage cluster
ii ceph-mds 17.1.0-0ubuntu1 amd64 metadata server for the ceph distributed file system
ii ceph-mgr 17.1.0-0ubuntu1 amd64 manager for the ceph distributed file system
ii ceph-mgr-modules-core 17.1.0-0ubuntu1 all ceph manager modules which are always enabled
ii ceph-mon 17.1.0-0ubuntu1 amd64 monitor server for the ceph storage system
ii ceph-osd 17.1.0-0ubuntu1 amd64 OSD server for the ceph storage system
ii ceph-volume 17.1.0-0ubuntu1 all tool to facilidate OSD deployment
ii libcephfs2 17.1.0-0ubuntu1 amd64 Ceph distributed file system client library
ii libsqlite3-mod-ceph 17.1.0-0ubuntu1 amd64 SQLite3 VFS for Ceph
ii python3-ceph-argparse 17.1.0-0ubuntu1 amd64 Python 3 utility libraries for Ceph CLI
ii python3-ceph-common 17.1.0-0ubuntu1 all Python 3 utility libraries for Ceph
ii python3-cephfs 17.1.0-0ubuntu1 amd64 Python 3 libraries for the Ceph libcephfs library

# ls -alh /usr/bin/python3
lrwxrwxrwx 1 root root 10 Jan 13 16:58 /usr/bin/python3 -> python3.10

# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu Jammy Jellyfish (development branch)
Release: 22.04
Codename: jammy

2022-03-08T17:58:18.807+0000 7f7734ff9640 -1 Traceback (most recent call last):
  File "/usr/share/ceph/mgr/devicehealth/module.py", line 338, in serve
    if self.db_ready() and self.enable_monitoring:
  File "/usr/share/ceph/mgr/mgr_module.py", line 1189, in db_ready
    return self.db is not None
  File "/usr/share/ceph/mgr/mgr_module.py", line 1201, in db
    self._db = self.open_db()
  File "/usr/share/ceph/mgr/mgr_module.py", line 1178, in open_db
    self.create_mgr_pool()
  File "/usr/share/ceph/mgr/mgr_module.py", line 1084, in create_mgr_pool
    self.rename_pool(devhealth, self.MGR_POOL_NAME)
  File "/usr/share/ceph/mgr/mgr_module.py", line 1048, in rename_pool
    self.check_mon_command(c)
  File "/usr/share/ceph/mgr/mgr_module.py", line 1560, in check_mon_command
    r = HandleCommandResult(*self.mon_command(cmd_dict, inbuf))
  File "/usr/share/ceph/mgr/mgr_module.py", line 1577, in mon_command
    self.send_command(result, "mon", "", json.dumps(cmd_dict), "", inbuf)
  File "/usr/share/ceph/mgr/mgr_module.py", line 1641, in send_command
    self._ceph_send_command(result, svc_type, svc_id, command, tag, inbuf)
SystemError: PY_SSIZE_T_CLEAN macro must be defined for '#' formats

maybe bug fix here: https://github.com/ceph/ceph/pull/44112