Exception seen in cinder-volume.log when unmanaging a volume

[Olga Klochkova]

 Environment has ceph as a storage backend

The following exception could be seen in cinder-volume.log:

0fdc2108b78c63 29a3255438bc49e7895968ff67c14682 - - -] Exception during message handling: 'RBDDriver' object has no attribute 'unmanage'
2016-02-17 13:59:29.068 4925 ERROR oslo_messaging.rpc.dispatcher Traceback (most recent call last):
2016-02-17 13:59:29.068 4925 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 142, in _dispatch_and_reply
2016-02-17 13:59:29.068 4925 ERROR oslo_messaging.rpc.dispatcher executor_callback))
2016-02-17 13:59:29.068 4925 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 186, in _dispatch
2016-02-17 13:59:29.068 4925 ERROR oslo_messaging.rpc.dispatcher executor_callback)
2016-02-17 13:59:29.068 4925 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 129, in _do_dispatch
2016-02-17 13:59:29.068 4925 ERROR oslo_messaging.rpc.dispatcher result = func(ctxt, **new_args)
2016-02-17 13:59:29.068 4925 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/dist-packages/osprofiler/profiler.py", line 105, in wrapper
2016-02-17 13:59:29.068 4925 ERROR oslo_messaging.rpc.dispatcher return f(*args, **kwargs)
2016-02-17 13:59:29.068 4925 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/dist-packages/cinder/volume/manager.py", line 146, in lvo_inner1
2016-02-17 13:59:29.068 4925 ERROR oslo_messaging.rpc.dispatcher return lvo_inner2(inst, context, volume_id, **kwargs)
2016-02-17 13:59:29.068 4925 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/dist-packages/oslo_concurrency/lockutils.py", line 254, in inner
2016-02-17 13:59:29.068 4925 ERROR oslo_messaging.rpc.dispatcher return f(*args, **kwargs)
2016-02-17 13:59:29.068 4925 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/dist-packages/cinder/volume/manager.py", line 145, in lvo_inner2
2016-02-17 13:59:29.068 4925 ERROR oslo_messaging.rpc.dispatcher return f(*_args, **_kwargs)
2016-02-17 13:59:29.068 4925 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/dist-packages/cinder/volume/manager.py", line 643, in delete_volume
2016-02-17 13:59:29.068 4925 ERROR oslo_messaging.rpc.dispatcher 'error_deleting')
2016-02-17 13:59:29.068 4925 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 195, in exit
2016-02-17 13:59:29.068 4925 ERROR oslo_messaging.rpc.dispatcher six.reraise(self.type_, self.value, self.tb)
2016-02-17 13:59:29.068 4925 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/dist-packages/cinder/volume/manager.py", line 627, in delete_volume
2016-02-17 13:59:29.068 4925 ERROR oslo_messaging.rpc.dispatcher self.driver.unmanage(volume_ref)
2016-02-17 13:59:29.068 4925 ERROR oslo_messaging.rpc.dispatcher AttributeError: 'RBDDriver' object has no attribute 'unmanage'
2016-02-17 13:59:29.068 4925 ERROR oslo_messaging.rpc.dispatcher

VERSION:
  feature_groups:
    - mirantis
  production: "docker"
  release: "8.0"
  api: "1.0"
  build_number: "569"
  build_id: "569"
  fuel-nailgun_sha: "558ca91a854cf29e395940c232911ffb851899c1"
  python-fuelclient_sha: "4f234669cfe88a9406f4e438b1e1f74f1ef484a5"
  fuel-agent_sha: "658be72c4b42d3e1436b86ac4567ab914bfb451b"
  fuel-nailgun-agent_sha: "b2bb466fd5bd92da614cdbd819d6999c510ebfb1"
  astute_sha: "b81577a5b7857c4be8748492bae1dec2fa89b446"
  fuel-library_sha: "33634ec27be77ecfb0b56b7e07497ad86d1fdcd3"
  fuel-ostf_sha: "3bc76a63a9e7d195ff34eadc29552f4235fa6c52"
  fuel-mirror_sha: "fb45b80d7bee5899d931f926e5c9512e2b442749"
  fuelmenu_sha: "78ffc73065a9674b707c081d128cb7eea611474f"
  shotgun_sha: "63645dea384a37dde5c01d4f8905566978e5d906"
  network-checker_sha: "a43cf96cd9532f10794dce736350bf5bed350e9d"
  fuel-upgrade_sha: "616a7490ec7199f69759e97e42f9b97dfc87e85b"
  fuelmain_sha: "d605bcbabf315382d56d0ce8143458be67c53434"

[Roman Podoliaka (rpodolyaka)]

Olga, does this break some functionality?

[Eugene Nikanorov (enikanorov)]

I took a closer look at this bug, it doesn't break much and it make sense to report it upstream.
Client doesn't return anything on that operation, however it probably should return some Invalid operation (HTTP 400 code)

[Yuriy Nesenenko (ynesenenko)]

The adding the unmanage method to RBD driver is a new feature but as now the period of FeatureFreeze we don't have time to do it in Mitaka.

[Dina Belova (dbelova)]

Added move-to-10.0 tag to show this bug was moved from 9.0

[Yuriy Nesenenko (ynesenenko)]

The fix committed in upstream https://review.openstack.org/#/c/307342/