Fix the race conditions when migration with server-group
Registered by
Alex Xu
The aim of this feature is to resolve the race condition when migrating
instance with server-group.
Whiteboard
Gerrit topic: https:/
Addressed by: https:/
Assign new scheduler-hints when migrate instance
Addressed by: https:/
Persist scheduler hints
Addressed by: https:/
Fix race conditions when migrate with server-group
(?)