Failures seen in c-vol log:
Sep 07 11:08:18.283063 ubuntu-xenial-rax-dfw-10816847 cinder-volume[893]: ERROR os_brick.initiator.connectors.sheepdog [None req-9f08923f-88cc-4274-a8b6-cff9213599fa None None] Failed to access sheepdog device handle: 'module' object has no attribute 'poll'
Sep 07 11:08:18.283202 ubuntu-xenial-rax-dfw-10816847 cinder-volume[893]: ERROR cinder.volume.manager [None req-9f08923f-88cc-4274-a8b6-cff9213599fa None None] Failed to use snapshot 0b3088b3-1352-48be-9a00-5fcf85a09748 to create a temporary volume and copy data to volume 86a7406e-b2c7-42c4-ac20-12708e6d2d97.: DeviceUnavailable: The device in the path None is unavailable: Unable to access the backend storage via file handle.
Sep 07 11:08:18.283327 ubuntu-xenial-rax-dfw-10816847 cinder-volume[893]: ERROR cinder.volume.manager Traceback (most recent call last):
Sep 07 11:08:18.283451 ubuntu-xenial-rax-dfw-10816847 cinder-volume[893]: ERROR cinder.volume.manager File "/opt/stack/new/cinder/cinder/volume/manager.py", line 873, in _revert_to_snapshot_generic
Sep 07 11:08:18.283573 ubuntu-xenial-rax-dfw-10816847 cinder-volume[893]: ERROR cinder.volume.manager self._copy_volume_data(ctxt, temp_vol, volume)
Sep 07 11:08:18.283695 ubuntu-xenial-rax-dfw-10816847 cinder-volume[893]: ERROR cinder.volume.manager File "/opt/stack/new/cinder/cinder/volume/manager.py", line 1957, in _copy_volume_data
Sep 07 11:08:18.283817 ubuntu-xenial-rax-dfw-10816847 cinder-volume[893]: ERROR cinder.volume.manager attach_encryptor=attach_encryptor)
Sep 07 11:08:18.283963 ubuntu-xenial-rax-dfw-10816847 cinder-volume[893]: ERROR cinder.volume.manager File "/opt/stack/new/cinder/cinder/volume/manager.py", line 1891, in _attach_volume
Sep 07 11:08:18.284086 ubuntu-xenial-rax-dfw-10816847 cinder-volume[893]: ERROR cinder.volume.manager attach_info = self._connect_device(conn)
Sep 07 11:08:18.284209 ubuntu-xenial-rax-dfw-10816847 cinder-volume[893]: ERROR cinder.volume.manager File "/opt/stack/new/cinder/cinder/volume/manager.py", line 1869, in _connect_device
Sep 07 11:08:18.284340 ubuntu-xenial-rax-dfw-10816847 cinder-volume[893]: ERROR cinder.volume.manager reason=(_("Unable to access the backend storage via file "
Sep 07 11:08:18.284469 ubuntu-xenial-rax-dfw-10816847 cinder-volume[893]: ERROR cinder.volume.manager DeviceUnavailable: The device in the path None is unavailable: Unable to access the backend storage via file handle.
Sep 07 11:08:18.284598 ubuntu-xenial-rax-dfw-10816847 cinder-volume[893]: ERROR cinder.volume.manager
cinder.tests.tempest.api.volume.test_volume_revert tests. May be an issue with generic revert implementation for this driver?
