As the main issue here has been sort of addressed and there are many
related other issues, it's better to close this and deal with the more
granular issues as they come up.
** Changed in: nova
Status: Confirmed => Fix Released
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https://bugs.launchpad.net/bugs/1731072
Title:
AllocationCandidates.get_by_filters returns garbage with multiple
aggregates
Status in OpenStack Compute (nova):
Fix Released
Bug description:
I set up a test scenario with multiple providers (sharing and non),
across multiple aggregates. Requesting allocation candidates gives
some candidates as expected, but some are garbled. Bad behaviors
include:
(1) When inventory in a given RC is provided both by a non-sharing and a
sharing RP in an aggregate, the sharing RP is ignored in the results (this is
tracked via https://bugs.launchpad.net/nova/+bug/1724613)
(2) When inventory in a given RC is provided solely by a sharing RP, I don't
get the expected candidate where that sharing RP provides that inventory and
the rest comes from the non-sharing RP.
(3) The above applies when there are multiple sharing RPs in the same
aggregate providing that same shared resource.
(4) ...and also when the sharing RPs provide different resources.
And we get a couple of unexpected candidates that are really garbled:
(5) Where there are multiple sharing RPs with different resources, one
candidate has the expected resources from the non-sharing RP and one of the
sharing RPs, but is missing the third requested resource entirely.
(6) With that same setup, we get another candidate that has the expected
resource from the non-sharing RP; but duplicated resources spread across
multiple sharing RPs from *different* *aggregates*. This one is also missing
one of the requested resources entirely.
I will post a commit shortly that demonstrates this behavior.
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