cinder-manage fails if a version of pbr<0.5.10 is installed

[Jay Bryant]

When attempting to install the Havana level of Cinder on a system we were encountering the following failure when attempting to execute 'cinder-manage db sync' :

[root@rhel6havana migrate_repo]# cinder-manage --debug db sync
2013-05-20 14:52:40 DEBUG [cinder.utils] backend <module 'cinder.db.sqlalchemy.migration' from '/usr/lib/python2.6/site-packages/cinder/db/sqlalchemy/migration.pyc'>
2013-05-20 14:52:40 DEBUG [migrate.versioning.repository] Loading repository /usr/lib/python2.6/site-packages/cinder/db/sqlalchemy/migrate_repo...
2013-05-20 14:52:40 CRITICAL [cinder] /usr/lib/python2.6/site-packages/cinder/db/sqlalchemy/migrate_repo
Traceback (most recent call last):
  File "/usr/bin/cinder-manage", line 820, in <module>
    main()
  File "/usr/bin/cinder-manage", line 817, in main
    fn(*fn_args)
  File "/usr/bin/cinder-manage", line 219, in sync
    return migration.db_sync(version)
  File "/usr/lib/python2.6/site-packages/cinder/db/migration.py", line 33, in db_sync
    return IMPL.db_sync(version=version)
  File "/usr/lib/python2.6/site-packages/cinder/db/sqlalchemy/migration.py", line 76, in db_sync
    current_version = db_version()
  File "/usr/lib/python2.6/site-packages/cinder/db/sqlalchemy/migration.py", line 86, in db_version
    repository = _find_migrate_repo()
  File "/usr/lib/python2.6/site-packages/cinder/db/sqlalchemy/migration.py", line 117, in _find_migrate_repo
    _REPOSITORY = Repository(path)
  File "/usr/lib/python2.6/site-packages/migrate/versioning/repository.py", line 77, in __init__
    self.verify(path)
  File "/usr/lib/python2.6/site-packages/migrate/versioning/repository.py", line 98, in verify
    raise exceptions.InvalidRepositoryError(path)
InvalidRepositoryError: /usr/lib/python2.6/site-packages/cinder/db/sqlalchemy/migrate_repo
[root@rhel6havana migrate_repo]#

After doing some investigation we discovered that the missing file was actually /usr/lib/python2.6/site-packages/cinder/db/sqlalchemy/migrate_repo/migrate.cfg . There appears to be a bug in PBR that was causing this file to be left out. The OpenStack people at RedHat were aware of this issue and advised us to move to PBR 0.5.10. That did resolve our problem.

So, the requires for PBR in Cinder should be pbr>=0.5.10,<0.6 to ensure that people who are installing on systems with previously installed PBR 0.5 levels do not encounter this issue.

[Monty Taylor (mordred)]

yes. we should really bump the requirement across everything.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/29820

[Jay Bryant (jsbryant)]

Looks like I have to update the level across all projects for them to accept the change. :-) Learned something else new.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/29820
Committed: http://github.com/openstack/cinder/commit/94220b145c6340fbfece511d8c45defef5a6c436
Submitter: Jenkins
Branch: master

commit 94220b145c6340fbfece511d8c45defef5a6c436
Author: Jay S. Bryant <email address hidden>
Date: Mon May 20 15:02:11 2013 -0500

    Ensure that pbr>=0.5.10 is installed

    A bug in PBR levels less than 0.5.10 causes the
    /usr/lib/python2.X/site-packages/cinder/db/sqlalchemy/migrate_repo/migrate.cfg
    file to not be properly installed. This causes 'cinder-manage db sync'
    to fail due to the missing file.

    This change sets the required PBR level to >=0.5.10,<0.6 to avoid the problem.
    In the case that user already has a 0.5.X level of PBR installed that is less
    than 0.5.10 it should be updated rather than encountering issues as our
    test system did.

    Change-Id: I532158277a4acbb2f8cb75d03c91097e6d7e0312
    fixes: bug 1182203