openstack@openstack:~/nova/etc/nova$ glance-manage db_sync
2015-05-28 19:51:07.299 28215 CRITICAL glance [-] ValueError: Invalid target type: None
2015-05-28 19:51:07.299 28215 TRACE glance Traceback (most recent call last):
2015-05-28 19:51:07.299 28215 TRACE glance   File "/usr/local/bin/glance-manage", line 10, in <module>
2015-05-28 19:51:07.299 28215 TRACE glance     sys.exit(main())
2015-05-28 19:51:07.299 28215 TRACE glance   File "/usr/local/lib/python2.7/dist-packages/glance/cmd/manage.py", line 316, in main
2015-05-28 19:51:07.299 28215 TRACE glance     return CONF.command.action_fn()
2015-05-28 19:51:07.299 28215 TRACE glance   File "/usr/local/lib/python2.7/dist-packages/glance/cmd/manage.py", line 172, in sync
2015-05-28 19:51:07.299 28215 TRACE glance     CONF.command.current_version)
2015-05-28 19:51:07.299 28215 TRACE glance   File "/usr/local/lib/python2.7/dist-packages/glance/cmd/manage.py", line 115, in sync
2015-05-28 19:51:07.299 28215 TRACE glance     migration.db_sync(db_api.get_engine(),
2015-05-28 19:51:07.299 28215 TRACE glance   File "/usr/local/lib/python2.7/dist-packages/glance/db/sqlalchemy/api.py", line 97, in get_engine
2015-05-28 19:51:07.299 28215 TRACE glance     facade = _create_facade_lazily()
2015-05-28 19:51:07.299 28215 TRACE glance   File "/usr/local/lib/python2.7/dist-packages/glance/db/sqlalchemy/api.py", line 87, in _create_facade_lazily
2015-05-28 19:51:07.299 28215 TRACE glance     _FACADE = session.EngineFacade.from_config(CONF)
2015-05-28 19:51:07.299 28215 TRACE glance   File "/usr/local/lib/python2.7/dist-packages/oslo.db-1.9.0-py2.7.egg/oslo_db/sqlalchemy/session.py", line 902, in from_config
2015-05-28 19:51:07.299 28215 TRACE glance     retry_interval=conf.database.retry_interval)
2015-05-28 19:51:07.299 28215 TRACE glance   File "/usr/local/lib/python2.7/dist-packages/oslo.db-1.9.0-py2.7.egg/oslo_db/sqlalchemy/session.py", line 818, in __init__
2015-05-28 19:51:07.299 28215 TRACE glance     **engine_kwargs)
2015-05-28 19:51:07.299 28215 TRACE glance   File "/usr/local/lib/python2.7/dist-packages/oslo.db-1.9.0-py2.7.egg/oslo_db/sqlalchemy/session.py", line 393, in create_engine
2015-05-28 19:51:07.299 28215 TRACE glance     pool_timeout=pool_timeout
2015-05-28 19:51:07.299 28215 TRACE glance   File "/usr/local/lib/python2.7/dist-packages/oslo.db-1.9.0-py2.7.egg/oslo_db/sqlalchemy/utils.py", line 918, in __call__
2015-05-28 19:51:07.299 28215 TRACE glance     self._url_from_target(target), target, arg, kw)
2015-05-28 19:51:07.299 28215 TRACE glance   File "/usr/local/lib/python2.7/dist-packages/oslo.db-1.9.0-py2.7.egg/oslo_db/sqlalchemy/utils.py", line 932, in _url_from_target
2015-05-28 19:51:07.299 28215 TRACE glance     raise ValueError("Invalid target type: %r" % target)
2015-05-28 19:51:07.299 28215 TRACE glance ValueError: Invalid target type: None
2015-05-28 19:51:07.299 28215 TRACE glance