[Bug 1833191] Re: UnicodeEncodeError from logging code during ceph-volume lvm create

[Trent Lloyd]

Reproduced on bionic with 13.2.4+dfsg1-0ubuntu2~cloud0 from the stein
cloud-archive

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https://bugs.launchpad.net/bugs/1833191

Title:
  UnicodeEncodeError from logging code during ceph-volume lvm create

Status in OpenStack ceph-osd charm:
  Invalid
Status in ceph package in Ubuntu:
  New

Bug description:
  When deploying ceph-osd with Bionic-Stein, a UnicdeEncodeError
  exception is logged every time a disk is initialized as a BlueStore
  OSD. The logging framework appears to catch this and it does not cause
  any actual problems, only the spurious warning.

  The issue appears to be due to non-ascii characters in the output from
  "systemctl enable" that is executed by ceph-volume (you can see the
  stderr output at the bottom of the message)

  cmd: ['ceph-volume', 'lvm', 'create', '--osd-fsid', '234af60b-d880
  -4dbb-89dd-658b1412f360', '--bluestore', '--data', 'ceph-234af60b-d880
  -4dbb-89dd-658b1412f360/osd-block-234af60b-d880-4dbb-89dd-
  658b1412f360', '--block.db', 'ceph-db-efa085db-6b36-4370-b3fb-
  76ddd7873154/osd-db-234af60b-d880-4dbb-89dd-658b1412f360']

  --- Logging error ---
  Traceback (most recent call last):
    File "/usr/lib/python3.6/logging/__init__.py", line 996, in emit
      stream.write(msg)
  UnicodeEncodeError: 'ascii' codec can't encode character '\u2192' in position 186: ordinal not in range(128)
  Call stack:
    File "/usr/sbin/ceph-volume", line 11, in <module>
      load_entry_point('ceph-volume==1.0.0', 'console_scripts', 'ceph-volume')()
    File "/usr/lib/python3/dist-packages/ceph_volume/main.py", line 38, in __init__
      self.main(self.argv)
    File "/usr/lib/python3/dist-packages/ceph_volume/decorators.py", line 59, in newfunc
      return f(*a, **kw)
    File "/usr/lib/python3/dist-packages/ceph_volume/main.py", line 148, in main
      terminal.dispatch(self.mapper, subcommand_args)
    File "/usr/lib/python3/dist-packages/ceph_volume/terminal.py", line 188, in dispatch
      instance.main()
    File "/usr/lib/python3/dist-packages/ceph_volume/devices/lvm/main.py", line 40, in main
      terminal.dispatch(self.mapper, self.argv)
    File "/usr/lib/python3/dist-packages/ceph_volume/terminal.py", line 188, in dispatch
      instance.main()
    File "/usr/lib/python3/dist-packages/ceph_volume/devices/lvm/create.py", line 69, in main
      self.create(args)
    File "/usr/lib/python3/dist-packages/ceph_volume/decorators.py", line 16, in is_root
      return func(*a, **kw)
    File "/usr/lib/python3/dist-packages/ceph_volume/devices/lvm/create.py", line 32, in create
      Activate([]).activate(args)
    File "/usr/lib/python3/dist-packages/ceph_volume/decorators.py", line 16, in is_root
      return func(*a, **kw)
    File "/usr/lib/python3/dist-packages/ceph_volume/devices/lvm/activate.py", line 257, in activate
      activate_bluestore(lvs, no_systemd=args.no_systemd)
    File "/usr/lib/python3/dist-packages/ceph_volume/devices/lvm/activate.py", line 184, in activate_bluestore
      systemctl.enable_volume(osd_id, osd_fsid, 'lvm')
    File "/usr/lib/python3/dist-packages/ceph_volume/systemd/systemctl.py", line 59, in enable_volume
      return enable(volume_unit % (device_type, id_, fsid))
    File "/usr/lib/python3/dist-packages/ceph_volume/systemd/systemctl.py", line 19, in enable
      process.run(['systemctl', 'enable', unit])
    File "/usr/lib/python3/dist-packages/ceph_volume/process.py", line 137, in run
      log_descriptors(reads, process, terminal_logging)
    File "/usr/lib/python3/dist-packages/ceph_volume/process.py", line 59, in log_descriptors
      log_output(descriptor_name, message, terminal_logging, True)
    File "/usr/lib/python3/dist-packages/ceph_volume/process.py", line 34, in log_output
      logger.info(line)
  Message: 'stderr Created symlink /etc/systemd/system/multi-user.target.wants/ceph-volume at lvm-23-234af60b-d880-4dbb-89dd-658b1412f360.service \u2192 /lib/systemd/system/ceph-volume at .service.'
  Arguments: ()

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