** Changed in: nova
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1359808
Title:
extended_volumes slows down the nova
This bug points to the number of queries made, you do not really need to
measure anything to see doing 4096 query in a loop is bad instead if
doing only one (or smaller group).
for id in ids:
SELECT attr from table where ID=id;
vs.
SELECT attr from table where ID in ids;
Mysql default max
Per similar bugs I've found in here, performance improvements are really
hard to track as bugs because they are a point in time behavior that
doesn't really have a repeat scenario. We should take a push on specs
for performance improvements. I think we all know that large numbers of
API calls take
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