Eric Harney 5f9c93b194 Prevent double-attachment race in attachment_reserve ... If multiple attachments are requested simultaneously, a volume can be attached to an instance more than once. This fixes this problem by detecting that a race has occurred in _attachment_reserve, and backing out one of the invalid attachment records. This means that if the attachment API is called repeatedly and quickly for the same volume, some requests may fail, but this is much better than incorrectly creating multiple attachments. Closes-Bug: #1833736 Change-Id: Ic2463338b698c5cf805c0ae06d0229f54f64b3fc (cherry picked from commit 7f3a77b66f) (cherry picked from commit eadff0df7e) Conflicts: cinder/tests/unit/attachments/test_attachments_api.py Depends-On: https://review.opendev.org/673851/		2019-08-01 13:34:44 -04:00
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__init__.py	Use pbr entry_points to setup the cinder scripts	2014-12-08 09:53:22 -05:00
api.py	Prevent double-attachment race in attachment_reserve	2019-08-01 13:34:44 -04:00
backup.py	Support multiple processes on Cinder Backup	2018-03-14 10:52:25 +01:00
manage.py	Merge "cinder-manage online_data_migrations fixes" into stable/rocky	2018-11-26 21:56:23 +00:00
rtstool.py	Get rid of conditional rtslib_fb imports	2018-06-20 16:18:21 -05:00
scheduler.py	Merge "Add 'conf' param for TextGuruMeditation autorun setup"	2016-03-03 19:01:46 +00:00
volume.py	Fix cinder-volume uses latest req-id for all log calls	2018-06-08 13:48:32 +00:00
volume_usage_audit.py	Remove unused print_function imports	2017-11-02 11:06:58 -04:00