Public bug reported:
When the 'to_delete' list of instance tags in db method
instance_tag_set() is empty, warnings are printed in the nova logs:
SAWarning: The IN-predicate on "tags.tag" was invoked with an empty
sequence. This results in a contradiction, which nonetheless can be
expensive to evaluate. Consider alternative strategies for improved
performance.
The fix is to not query the DB in that case.
** Affects: nova
Importance: Undecided
Assignee: Sergey Nikitin (snikitin)
Status: New
** Changed in: nova
Assignee: (unassigned) => Sergey Nikitin (snikitin)
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https://bugs.launchpad.net/bugs/1480226
Title:
SAWarning: The IN-predicate on tags.tag was invoked with an empty
sequence
Status in OpenStack Compute (nova):
New
Bug description:
When the 'to_delete' list of instance tags in db method
instance_tag_set() is empty, warnings are printed in the nova logs:
SAWarning: The IN-predicate on "tags.tag" was invoked with an empty
sequence. This results in a contradiction, which nonetheless can be
expensive to evaluate. Consider alternative strategies for improved
performance.
The fix is to not query the DB in that case.
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