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[melanie witt <1795078@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Seen in the openstack-tox-py35 [1]:

2018-09-26 17:20:32.001487 | ubuntu-xenial | /home/zuul/src/git.openstack.org/openstack/nova/.tox/py35/lib/python3.5/site-packages/oslo_db/sqlalchemy/enginefacade.py:350: OsloDBDeprecationWarning: EngineFacade is deprecated; please use oslo_db.sqlalchemy.enginefacade
2018-09-26 17:20:32.001833 | ubuntu-xenial |   self._legacy_facade = LegacyEngineFacade(None, _factory=self)

and openstack-tox-py36 jobs:

2018-09-28 11:39:03.066777 | ubuntu-bionic |     b'/home/zuul/src/git.openstack.org/openstack/nova/.tox/py36/lib/python3.6/site-packages/oslo_db/sqlalchemy/enginefacade.py:350: OsloDBDeprecationWarning: EngineFacade is deprecated; please use oslo_db.sqlalchemy.enginefacade'
2018-09-28 11:39:03.066944 | ubuntu-bionic |     b'  self._legacy_facade = LegacyEngineFacade(None, _factory=self)'

[1] http://logs.openstack.org/97/410297/44/gate/openstack-tox-py35/9d96763/job-output.txt#_2018-09-26_17_14_52_089548
[2] http://logs.openstack.org/16/270116/18/check/openstack-tox-py36/56e7491/job-output.txt.gz#_2018-09-28_11_39_03_066777

I think this issue stems from our use of the get_legacy_facade() method
in the DB API, so we need to update to use the get_engine() method from
the transaction context manager class instead.

** Affects: nova
     Importance: Low
     Assignee: melanie witt (melwitt)
         Status: In Progress


** Tags: db testing

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https://bugs.launchpad.net/bugs/1795078

Title:
  "OsloDBDeprecationWarning: EngineFacade is deprecated; please use
  oslo_db.sqlalchemy.enginefacade" warnings emitted numerous times
  during py3 unit tests

Status in OpenStack Compute (nova):
  In Progress

Bug description:
  Seen in the openstack-tox-py35 [1]:

  2018-09-26 17:20:32.001487 | ubuntu-xenial | /home/zuul/src/git.openstack.org/openstack/nova/.tox/py35/lib/python3.5/site-packages/oslo_db/sqlalchemy/enginefacade.py:350: OsloDBDeprecationWarning: EngineFacade is deprecated; please use oslo_db.sqlalchemy.enginefacade
  2018-09-26 17:20:32.001833 | ubuntu-xenial |   self._legacy_facade = LegacyEngineFacade(None, _factory=self)

  and openstack-tox-py36 jobs:

  2018-09-28 11:39:03.066777 | ubuntu-bionic |     b'/home/zuul/src/git.openstack.org/openstack/nova/.tox/py36/lib/python3.6/site-packages/oslo_db/sqlalchemy/enginefacade.py:350: OsloDBDeprecationWarning: EngineFacade is deprecated; please use oslo_db.sqlalchemy.enginefacade'
  2018-09-28 11:39:03.066944 | ubuntu-bionic |     b'  self._legacy_facade = LegacyEngineFacade(None, _factory=self)'

  [1] http://logs.openstack.org/97/410297/44/gate/openstack-tox-py35/9d96763/job-output.txt#_2018-09-26_17_14_52_089548
  [2] http://logs.openstack.org/16/270116/18/check/openstack-tox-py36/56e7491/job-output.txt.gz#_2018-09-28_11_39_03_066777

  I think this issue stems from our use of the get_legacy_facade()
  method in the DB API, so we need to update to use the get_engine()
  method from the transaction context manager class instead.

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