Ceph » ceph-volume

OS: Ubuntu 16.04
Ceph: Nautilus 14.2.11

Invoking activating OSD drive could fail because of old blkid cache

--> activating OSD specified in /etc/ceph/osd/43-64d7fc20-4e11-4357-8027-a1ac963450df.json
Running command: /bin/ln -snf /dev/sdp2 /dev/disk/by-partuuid/f07926d1-b88b-4892-9ed7-4e5a200b06f5 /var/lib/ceph/osd/ceph-43/block
Running command: /bin/chown -R ceph:ceph /dev/sdp2 /dev/disk/by-partuuid/f07926d1-b88b-4892-9ed7-4e5a200b06f5
 stderr: /bin/chown: cannot access '/dev/sdp2 /dev/disk/by-partuuid/f07926d1-b88b-4892-9ed7-4e5a200b06f5': No such file or directory
Traceback (most recent call last):
  File "/usr/sbin/ceph-volume", line 9, in <module>
    load_entry_point('ceph-volume==1.0.0', 'console_scripts', 'ceph-volume')()
  File "/usr/lib/python2.7/dist-packages/ceph_volume/main.py", line 39, in __init__
    self.main(self.argv)
  File "/usr/lib/python2.7/dist-packages/ceph_volume/decorators.py", line 59, in newfunc
    return f(*a, **kw)
  File "/usr/lib/python2.7/dist-packages/ceph_volume/main.py", line 150, in main
    terminal.dispatch(self.mapper, subcommand_args)
  File "/usr/lib/python2.7/dist-packages/ceph_volume/terminal.py", line 194, in dispatch
    instance.main()
  File "/usr/lib/python2.7/dist-packages/ceph_volume/devices/simple/main.py", line 33, in main
    terminal.dispatch(self.mapper, self.argv)
  File "/usr/lib/python2.7/dist-packages/ceph_volume/terminal.py", line 194, in dispatch
    instance.main()
  File "/usr/lib/python2.7/dist-packages/ceph_volume/devices/simple/activate.py", line 281, in main
    self.activate(args)
  File "/usr/lib/python2.7/dist-packages/ceph_volume/decorators.py", line 16, in is_root
    return func(*a, **kw)
  File "/usr/lib/python2.7/dist-packages/ceph_volume/devices/simple/activate.py", line 197, in activate
    system.chown(device)
  File "/usr/lib/python2.7/dist-packages/ceph_volume/util/system.py", line 123, in chown
    process.run(['chown', '-R', 'ceph:ceph', path])
  File "/usr/lib/python2.7/dist-packages/ceph_volume/process.py", line 153, in run
    raise RuntimeError(msg)
RuntimeError: command returned non-zero exit status: 1

At the same time the blkid return

# blkid -t PARTUUID=f07926d1-b88b-4892-9ed7-4e5a200b06f5 -o device
/dev/sdp2
/dev/disk/by-partuuid/f07926d1-b88b-4892-9ed7-4e5a200b06f5

# blkid -t PARTUUID=f07926d1-b88b-4892-9ed7-4e5a200b06f5 -o device
/dev/sdp2

We tested that ceph-volume simple scan command has influence on blkid cache.
The best solution is to ignore cache during ceph-volume operations.