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Message #31753
[Bug 1443640] [NEW] Cells: race condition when saving an instance
Public bug reported:
When an instance is saved in a parent cell the db update happens there
and then the update is sent to a child cell. When the child cells
updates its database it then sends that update back up to the parent to
be save there again. The propagation of the change back up to the
parent can overwrite subsequent changes there causing data to be lost.
Updates from a parent->child or child->parent should go one direction
only and not propagate back to the originating cell.
** Affects: nova
Importance: Undecided
Assignee: Sylvain Bauza (sylvain-bauza)
Status: New
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https://bugs.launchpad.net/bugs/1443640
Title:
Cells: race condition when saving an instance
Status in OpenStack Compute (Nova):
New
Bug description:
When an instance is saved in a parent cell the db update happens there
and then the update is sent to a child cell. When the child cells
updates its database it then sends that update back up to the parent
to be save there again. The propagation of the change back up to the
parent can overwrite subsequent changes there causing data to be lost.
Updates from a parent->child or child->parent should go one direction
only and not propagate back to the originating cell.
To manage notifications about this bug go to:
https://bugs.launchpad.net/nova/+bug/1443640/+subscriptions
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