https://bugzilla.wikimedia.org/show_bug.cgi?id=43452
Web browser: ---
Bug ID: 43452
Summary: BacklinkCache::getLinks causes mysql client to run out
memory
Product: MediaWiki
Version: unspecified
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: Unprioritized
Component: Database
Assignee: [email protected]
Reporter: [email protected]
Classification: Unclassified
Mobile Platform: ---
(from bug 37731)
> https://gerrit.wikimedia.org/r/#/c/32488/ added a limit to
> BacklinkCache::getNumLinks but some related jobs are still failing in
> BacklinkCache::getLinks like this:
>
> Wed Dec 26 23:40:42 UTC 2012 mw14 commonswiki
> BacklinkCache::getLinks
> 10.0.6.61 2008 MySQL client ran out of memory (10.0.6.61)
> SELECT
> /*! STRAIGHT_JOIN */ page_namespace,page_title,page_id FROM
> `templatelinks`,`page` WHERE tl_namespace = '10' AND tl_title = 'Date' AND
> (page_id=tl_from) ORDER BY tl_from
>
> That query returns 12384915 rows and would have to be batched.
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