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[Bug 1726871] [NEW] AttributeError: 'BlockDeviceMapping' object has no attribute 'uuid'

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Public bug reported:

running Pike, Cinder is configured with disabled NAS security and
enabled snapshots in NFS driver.

While trying to make a snapshot nova-api reports:

2017-10-24 13:36:16.558 39 INFO nova.osapi_compute.wsgi.server [req-e6c3dec2-40ea-4858-af91-3d77395d6978 6f4347f3c1b34d69946b17592aaf5b7f aeb3218c5fdc4d58b1094a4d360a2a96 - default default] 10.196.245.222,10.196.245.203 "GET /v2.1/ HTTP/1.1" status: 200 len: 763 time: 0.0097859
2017-10-24 13:36:17.315 39 ERROR nova.api.openstack.extensions [req-cb2a54c0-6103-41ca-a5dc-587e301bfbb1 6f4347f3c1b34d69946b17592aaf5b7f aeb3218c5fdc4d58b1094a4d360a2a96 - default default] Unexpected exception in API method: AttributeError: 'BlockDeviceMapping' object has no attribute 'uuid'
2017-10-24 13:36:17.315 39 ERROR nova.api.openstack.extensions Traceback (most recent call last):
2017-10-24 13:36:17.315 39 ERROR nova.api.openstack.extensions   File "/var/lib/kolla/venv/lib/python2.7/site-packages/nova/api/openstack/extensions.py", line 336, in wrapped
2017-10-24 13:36:17.315 39 ERROR nova.api.openstack.extensions     return f(*args, **kwargs)
2017-10-24 13:36:17.315 39 ERROR nova.api.openstack.extensions   File "/var/lib/kolla/venv/lib/python2.7/site-packages/nova/api/validation/__init__.py", line 108, in wrapper
2017-10-24 13:36:17.315 39 ERROR nova.api.openstack.extensions     return func(*args, **kwargs)
2017-10-24 13:36:17.315 39 ERROR nova.api.openstack.extensions   File "/var/lib/kolla/venv/lib/python2.7/site-packages/nova/api/openstack/compute/assisted_volume_snapshots.py", line 52, in create
2017-10-24 13:36:17.315 39 ERROR nova.api.openstack.extensions     create_info)
2017-10-24 13:36:17.315 39 ERROR nova.api.openstack.extensions   File "/var/lib/kolla/venv/lib/python2.7/site-packages/nova/compute/api.py", line 4165, in volume_snapshot_create
2017-10-24 13:36:17.315 39 ERROR nova.api.openstack.extensions     return do_volume_snapshot_create(self, context, bdm.instance)
2017-10-24 13:36:17.315 39 ERROR nova.api.openstack.extensions   File "/var/lib/kolla/venv/lib/python2.7/site-packages/oslo_versionedobjects/base.py", line 67, in getter
2017-10-24 13:36:17.315 39 ERROR nova.api.openstack.extensions     self.obj_load_attr(name)
2017-10-24 13:36:17.315 39 ERROR nova.api.openstack.extensions   File "/var/lib/kolla/venv/lib/python2.7/site-packages/nova/objects/block_device.py", line 288, in obj_load_attr
2017-10-24 13:36:17.315 39 ERROR nova.api.openstack.extensions     'uuid': self.uuid,
2017-10-24 13:36:17.315 39 ERROR nova.api.openstack.extensions AttributeError: 'BlockDeviceMapping' object has no attribute 'uuid'
2017-10-24 13:36:17.315 39 ERROR nova.api.openstack.extensions 
2017-10-24 13:36:17.317 39 INFO nova.api.openstack.wsgi [req-cb2a54c0-6103-41ca-a5dc-587e301bfbb1 6f4347f3c1b34d69946b17592aaf5b7f aeb3218c5fdc4d58b1094a4d360a2a96 - default default] HTTP exception thrown: Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and attach the Nova API log if possible.
<type 'exceptions.AttributeError'>

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1726871

Title:
  AttributeError: 'BlockDeviceMapping' object has no attribute 'uuid'

Status in OpenStack Compute (nova):
  New

Bug description:
  running Pike, Cinder is configured with disabled NAS security and
  enabled snapshots in NFS driver.

  While trying to make a snapshot nova-api reports:

  2017-10-24 13:36:16.558 39 INFO nova.osapi_compute.wsgi.server [req-e6c3dec2-40ea-4858-af91-3d77395d6978 6f4347f3c1b34d69946b17592aaf5b7f aeb3218c5fdc4d58b1094a4d360a2a96 - default default] 10.196.245.222,10.196.245.203 "GET /v2.1/ HTTP/1.1" status: 200 len: 763 time: 0.0097859
  2017-10-24 13:36:17.315 39 ERROR nova.api.openstack.extensions [req-cb2a54c0-6103-41ca-a5dc-587e301bfbb1 6f4347f3c1b34d69946b17592aaf5b7f aeb3218c5fdc4d58b1094a4d360a2a96 - default default] Unexpected exception in API method: AttributeError: 'BlockDeviceMapping' object has no attribute 'uuid'
  2017-10-24 13:36:17.315 39 ERROR nova.api.openstack.extensions Traceback (most recent call last):
  2017-10-24 13:36:17.315 39 ERROR nova.api.openstack.extensions   File "/var/lib/kolla/venv/lib/python2.7/site-packages/nova/api/openstack/extensions.py", line 336, in wrapped
  2017-10-24 13:36:17.315 39 ERROR nova.api.openstack.extensions     return f(*args, **kwargs)
  2017-10-24 13:36:17.315 39 ERROR nova.api.openstack.extensions   File "/var/lib/kolla/venv/lib/python2.7/site-packages/nova/api/validation/__init__.py", line 108, in wrapper
  2017-10-24 13:36:17.315 39 ERROR nova.api.openstack.extensions     return func(*args, **kwargs)
  2017-10-24 13:36:17.315 39 ERROR nova.api.openstack.extensions   File "/var/lib/kolla/venv/lib/python2.7/site-packages/nova/api/openstack/compute/assisted_volume_snapshots.py", line 52, in create
  2017-10-24 13:36:17.315 39 ERROR nova.api.openstack.extensions     create_info)
  2017-10-24 13:36:17.315 39 ERROR nova.api.openstack.extensions   File "/var/lib/kolla/venv/lib/python2.7/site-packages/nova/compute/api.py", line 4165, in volume_snapshot_create
  2017-10-24 13:36:17.315 39 ERROR nova.api.openstack.extensions     return do_volume_snapshot_create(self, context, bdm.instance)
  2017-10-24 13:36:17.315 39 ERROR nova.api.openstack.extensions   File "/var/lib/kolla/venv/lib/python2.7/site-packages/oslo_versionedobjects/base.py", line 67, in getter
  2017-10-24 13:36:17.315 39 ERROR nova.api.openstack.extensions     self.obj_load_attr(name)
  2017-10-24 13:36:17.315 39 ERROR nova.api.openstack.extensions   File "/var/lib/kolla/venv/lib/python2.7/site-packages/nova/objects/block_device.py", line 288, in obj_load_attr
  2017-10-24 13:36:17.315 39 ERROR nova.api.openstack.extensions     'uuid': self.uuid,
  2017-10-24 13:36:17.315 39 ERROR nova.api.openstack.extensions AttributeError: 'BlockDeviceMapping' object has no attribute 'uuid'
  2017-10-24 13:36:17.315 39 ERROR nova.api.openstack.extensions 
  2017-10-24 13:36:17.317 39 INFO nova.api.openstack.wsgi [req-cb2a54c0-6103-41ca-a5dc-587e301bfbb1 6f4347f3c1b34d69946b17592aaf5b7f aeb3218c5fdc4d58b1094a4d360a2a96 - default default] HTTP exception thrown: Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and attach the Nova API log if possible.
  <type 'exceptions.AttributeError'>

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