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Committer:
Mark McLoughlin
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Date:
2011-08-24 14:50:46 UTC
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Revision ID:
markmc@redhat.com-20110824145046-kio8wg552hv5vl87
Fix quotas migration failure
With sqlalchemy 0.7.2 and migrate 0.7.1, I was seeing:
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/nova/db/migration.py", line 37, in db_sync
ret = IMPL.db_sync(version=version)
[..]
File "/usr/lib/python2.7/site-packages/nova/db/sqlalchemy/migrate_repo/versions/016_make_quotas_key_and_value.py", line 189, in upgrade
new_quotas.rename('quotas')
[..]
File "/usr/lib/python2.7/site-packages/migrate/changeset/schema.py", line 479, in deregister
del meta.tables[key]
File "/usr/lib64/python2.7/site-packages/sqlalchemy/util/_collections.py", line 38, in _immutable
raise TypeError("%s object is immutable" % self.__class__.__name__)
TypeError: immutabledict object is immutable
This is actually a bug in sqlalchemy-migrate:
http://code.google.com/p/sqlalchemy-migrate/issues/detail?id=128
But it can be worked around by ensuring there isn't a 'quotas' table in
the metadata's table hash before renaming.