Zane Bitter c9792b96d2 Create replacement resource atomically ... Use a single transaction to create the replacement resource and set it as the replaced_by link in the old resource. Also, ensure that no other traversal has taken a lock on the old resource before we modify it. If we end up bailing out and not creating a replacement or sending an RPC message to check it, make sure we retrigger any new traversal. Change-Id: I23db4f06a4060f3d26a78f7b26700de426f355e3 Closes-Bug: #1727128		2017-11-03 09:14:46 +05:30
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migrate_repo	Adds 5 backport db migration place holder for Pike	2017-08-22 19:07:16 +08:00
__init__.py	Stub out the database access API	2012-03-29 18:02:16 +02:00
api.py	Create replacement resource atomically	2017-11-03 09:14:46 +05:30
filters.py	replace dict.iteritems() with six.iteritems(dict)	2014-08-06 10:56:09 +08:00
migration.py	Squash database patches	2017-03-14 15:52:46 +08:00
models.py	Data migration enabling storage of resource attributes	2017-02-16 16:08:31 -05:00
types.py	Remove usage of sqlalchemy mutables	2015-06-26 11:02:03 +02:00
utils.py	Replace retrying with tenacity	2016-11-15 04:34:17 +00:00