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[Bug 1658116] Re: Wrong migration step run when file names are the same

 

Reviewed:  https://review.openstack.org/429912
Committed: https://git.openstack.org/cgit/openstack/keystone/commit/?id=eb1c186f10a4d0cfdcc53fbcf49c005cd9c4349d
Submitter: Jenkins
Branch:    master

commit eb1c186f10a4d0cfdcc53fbcf49c005cd9c4349d
Author: Ronald De Rose <ronald.de.rose@xxxxxxxxx>
Date:   Mon Feb 6 22:45:14 2017 +0000

    Ensure migration file names are unique to avoid caching errors
    
    This patch requires migration files to include a prefix (expand,
    migrate, contract) in order to keep them unique and prevent a bug
    related to caching. Here is the standard format:
    [version]_[prefix]_[description]
    
    For example:
    * 001_expand_new_fk_constraint.py
    * 001_migrate_new_fk_constraint.py
    * 001_contract_new_fk_constraint.py
    
    Closes-Bug: #1658116
    Change-Id: I3431381abfe4d9fd15512c5c7beb6ab0028dc38e


** Changed in: keystone
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1658116

Title:
  Wrong migration step run when file names are the same

Status in OpenStack Identity (keystone):
  Fix Released

Bug description:
  We've seen a couple instances now where the wrong migration step is
  run in tests, when the migration file names in each repo are the same.
  For example, in the following patch, expand was called, yet the
  contract file was the one actually run:

  Traceback (most recent call last):
    File "keystone/tests/unit/test_sql_upgrade.py", line 1964, in test_migration_013_add_domain_id_to_user
      self.expand(13)
    File "keystone/tests/unit/test_sql_upgrade.py", line 228, in expand
      self.repos[EXPAND_REPO].upgrade(*args, **kwargs)
    File "keystone/common/sql/upgrades.py", line 63, in upgrade
      self.schema_.runchange(ver, change, changeset.step)
    File "/home/jenkins/workspace/gate-keystone-python27-db-ubuntu-xenial/.tox/py27/local/lib/python2.7/site-packages/migrate/versioning/schema.py", line 93, in runchange
      change.run(self.engine, step)
    File "/home/jenkins/workspace/gate-keystone-python27-db-ubuntu-xenial/.tox/py27/local/lib/python2.7/site-packages/migrate/versioning/script/py.py", line 148, in run
      script_func(engine)
    File "/home/jenkins/workspace/gate-keystone-python27-db-ubuntu-xenial/keystone/common/sql/contract_repo/versions/013_add_domain_id_to_user.py", line 43, in upgrade
      migrate.UniqueConstraint(user.c.id, user.c.domain_id,
    File "/home/jenkins/workspace/gate-keystone-python27-db-ubuntu-xenial/.tox/py27/local/lib/python2.7/site-packages/sqlalchemy/util/_collections.py", line 212, in __getattr__
      raise AttributeError(key)
  AttributeError: domain_id

  http://logs.openstack.org/74/409874/29/check/gate-keystone-python27
  -db-ubuntu-xenial/d2a60fd/testr_results.html.gz

  Likewise, morgan was seeing a similar issue here, where the expand migration file wasn't being run, so the test failed the table exist check:
  https://review.openstack.org/#/c/422817/3/keystone/tests/unit/test_sql_upgrade.py

  http://eavesdrop.openstack.org/irclogs/%23openstack-keystone
  /%23openstack-keystone.2017-01-20.log.html

  However, both patches would run successfully locally.

  As a workaround, making the repo file names unique fixes the problem,
  suggesting that perhaps this is related to the files being cached.

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References