https://bugzilla.wikimedia.org/show_bug.cgi?id=61982
Bug ID: 61982
Summary: ApiQueryUserContributions Revision::getParentLengths
wrong load balancing db connection
Product: MediaWiki
Version: 1.23-git
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: Unprioritized
Component: API
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected], [email protected]
Web browser: ---
Mobile Platform: ---
This is very similiar to Bug 59987 and may need a similar fix.
ApiQueryContributions::execute calls Revision::getParentLengths thus:
$this->parentLens = Revision::getParentLengths( $this->getDB(), $revIds );
The DB handle returned by getDB() is initialized previously to use the
'contributions' name for the database load balancer. This is appropriate for
ApiQueryContributions itself but less-so for Revision::getParentLengths as the
latter query is quite different and limits the optimization options in the back
end.
Consider passing a second normal slave connection instead.
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