Andrey Pavlov c933c08c89 Avoid race condition at snapshot deletion stage ... Snapshot`s list method can raise SnapshotNotFound exception. It happens because of race condition: 1. List method gets all snapshots from DB. 2. At the same time one of the snapshots is being deleted from DB. 3. List method gets snapshot metadata from DB and checks that snapshot exists in DB and raises the exception. This patchset changes behaviour of getting snapshot metadata from DB. Code now gets metadata from db_snapshot object that was queried by joined query from DB instead of second query for each snapshot for metadata. And I removed checking of snapshot existence for getting metadata for private method because all public methods already have such decorator. Using second decorator will slow public method. Change-Id: I7f743638d9be4c01e18315a3459aecd2b3e9fd87 Closes-Bug: #1462453		2015-07-02 15:50:01 +03:00
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__init__.py	Backup object	2015-06-18 10:17:53 +02:00
backup.py	Use elevated context for backup destroy	2015-06-22 18:33:39 +00:00
base.py	Stop using deprecated timeutils.isotime()	2015-05-27 08:28:39 +02:00
snapshot.py	Avoid race condition at snapshot deletion stage	2015-07-02 15:50:01 +03:00
volume.py	Switch to oslo_versionedobjects	2015-05-13 08:36:53 -07:00