ActiveUsersPager.php: PHP Notice: Undefined index: dir
Closed, ResolvedPublicPRODUCTION ERROR
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Description

Error

Request ID: AWjuNY3fi-uKhB2cMyhq

message

PHP Notice: Undefined index: dir

trace

#0 /srv/mediawiki/php-1.33.0-wmf.17/includes/specials/pagers/ActiveUsersPager.php(102): MWExceptionHandler::handleError(integer, string, string, integer, array, array)
#1 /srv/mediawiki/php-1.33.0-wmf.17/includes/specials/pagers/ActiveUsersPager.php(184): ActiveUsersPager->getQueryInfo(array)
#2 /srv/mediawiki/php-1.33.0-wmf.17/includes/pager/IndexPager.php(367): ActiveUsersPager->buildQueryInfo(string, integer, boolean)
#3 /srv/mediawiki/php-1.33.0-wmf.17/includes/pager/IndexPager.php(226): IndexPager->reallyDoQuery(string, integer, boolean)
#4 /srv/mediawiki/php-1.33.0-wmf.17/includes/pager/IndexPager.php(423): IndexPager->doQuery()
#5 /srv/mediawiki/php-1.33.0-wmf.17/includes/specials/SpecialActiveusers.php(62): IndexPager->getBody()
#6 /srv/mediawiki/php-1.33.0-wmf.17/includes/specialpage/SpecialPage.php(569): SpecialActiveUsers->execute(NULL)
#7 /srv/mediawiki/php-1.33.0-wmf.17/includes/specialpage/SpecialPageFactory.php(558): SpecialPage->run(NULL)
#8 /srv/mediawiki/php-1.33.0-wmf.17/includes/MediaWiki.php(288): MediaWiki\Special\SpecialPageFactory->executePath(Title, RequestContext)
#9 /srv/mediawiki/php-1.33.0-wmf.17/includes/MediaWiki.php(867): MediaWiki->performRequest()
#10 /srv/mediawiki/php-1.33.0-wmf.17/includes/MediaWiki.php(517): MediaWiki->main()
#11 /srv/mediawiki/php-1.33.0-wmf.17/index.php(42): MediaWiki->run()
#12 /srv/mediawiki/w/index.php(3): include(string)
#13 {main}

Impact

Notes

Details

Related Changes in Gerrit:

	Subject	Author	Repo	Branch	Lines +/-
	Follow-up 262fd58: Correctly apply the ORDER BY in ActiveUsersPager	Jforrester	mediawiki/core	wmf/1.33.0-wmf.17	+1 -1
	Follow-up 262fd58: Correctly apply the ORDER BY in ActiveUsersPager	Mainframe98	mediawiki/core	master	+1 -1

Customize query in gerrit

Related Objects
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		Status	Subtype	Assigned	Task
		Resolved	Release	• thcipriani	T206672 1.33.0-wmf.18 deployment blockers
		Resolved	PRODUCTION ERROR	Mainframe98	T216200 includes/specials/pagers/ActiveUsersPager.php: PHP Notice: Undefined index: dir

Event Timeline

• thcipriani created this task.Feb 14 2019, 11:00 PM

Restricted Application added a subscriber: Aklapper. · View Herald TranscriptFeb 14 2019, 11:00 PM

• thcipriani added a parent task: T206672: 1.33.0-wmf.18 deployment blockers.Feb 14 2019, 11:07 PM

Non-frequent error that started showing up in wmf.17. Doesn't seem rollback-worthy.

Setting as High and adding as a blocker to next week's train with the hope that we can fix this regression before cutting wmf.18.

matej_suchanek added a project: MediaWiki-Special-pages.Feb 15 2019, 11:10 AM

Currently the most frequent error on https://logstash.wikimedia.org/app/kibana#/dashboard/mediawiki-errors

message Count

[{exception_id}] {exception_url} ErrorException from line 102 of /srv/mediawiki/php-1.33.0-wmf.17/includes/specials/pagers/ActiveUsersPager.php: PHP Notice: Undefined index: dir 1,490

Most likely cause: rMW262fd585d0e6: Improve performance of ActiveUsersPager query / T199044

Krinkle moved this task from Backlog to User list on the MediaWiki-User-management board.Feb 18 2019, 9:40 PM

• thcipriani raised the priority of this task from High to Unbreak Now!.Feb 19 2019, 2:36 PM

Restricted Application added subscribers: Liuxinyu970226, TerraCodes. · View Herald TranscriptFeb 19 2019, 2:36 PM

Change 491507 had a related patch set uploaded (by Mainframe98; owner: Mainframe98):
[mediawiki/core@master] Correctly apply the ORDER BY direction in ActiveUsersPager

https://gerrit.wikimedia.org/r/491507

gerritbot added a project: Patch-For-Review.Feb 19 2019, 3:05 PM

In T216200#4962775, @Krinkle wrote:

Most likely cause: rMW262fd585d0e6: Improve performance of ActiveUsersPager query / T199044

I would assume so, looking at the diff. The change introduces

$options['ORDER BY'] = 'qcc_title ' . $data['dir'];

but the previous version never contained that.

It should most likely be replaced by

$options['ORDER BY'] = 'qcc_title ' . $data['order'];

as ActiveUsersPager::buildQueryInfo provides the ORDER BY direction under the key order.

daniel moved this task from Inbox to Needs Cleaning - Security, stability, performance, and scalability (TEC1) on the Platform Engineering board.Feb 19 2019, 3:10 PM

daniel edited projects, added: Platform Engineering (Needs Cleaning - Security, stability, performance, and scalability (TEC1)); removed: Platform Engineering.

Change 491507 merged by jenkins-bot:
[mediawiki/core@master] Follow-up 262fd58: Correctly apply the ORDER BY in ActiveUsersPager

https://gerrit.wikimedia.org/r/491507

Mainframe98 closed this task as Resolved.Feb 19 2019, 3:53 PM

Mainframe98 claimed this task.

Change 491517 had a related patch set uploaded (by Jforrester; owner: Mainframe98):
[mediawiki/core@wmf/1.33.0-wmf.17] Follow-up 262fd58: Correctly apply the ORDER BY in ActiveUsersPager

https://gerrit.wikimedia.org/r/491517

ReleaseTaggerBot added a project: MW-1.33-notes (1.33.0-wmf.18; 2019-02-19).Feb 19 2019, 4:00 PM

Change 491517 merged by jenkins-bot:
[mediawiki/core@wmf/1.33.0-wmf.17] Follow-up 262fd58: Correctly apply the ORDER BY in ActiveUsersPager

https://gerrit.wikimedia.org/r/491517

Mentioned in SAL (#wikimedia-operations) [2019-02-19T16:28:52Z] <jforrester@deploy1001> Synchronized php-1.33.0-wmf.17/includes/specials/pagers/ActiveUsersPager.php: T216200 Hot deploy variable name fix for ActiveUsersPager query (duration: 00m 48s)

Live-deployed to wmf.17.

ReleaseTaggerBot edited projects, added: MW-1.33-notes (1.33.0-wmf.17; 2019-02-12); removed: MW-1.33-notes (1.33.0-wmf.18; 2019-02-19).Feb 19 2019, 5:00 PM

Liuxinyu970226 unsubscribed.Mar 11 2019, 12:23 AM

Reedy moved this task from Jun 2019 / 1.34.wmf.8+ to Resolved on the Wikimedia-production-error board.May 17 2019, 9:36 PM

Ladsgroup removed a project: Patch-For-Review.May 21 2019, 9:27 PM

• mmodell changed the subtype of this task from "Task" to "Production Error".Aug 28 2019, 11:07 PM

Aklapper removed a subscriber: Anomie.Oct 16 2020, 5:38 PM

message	Count
[{exception_id}] {exception_url} ErrorException from line 102 of /srv/mediawiki/php-1.33.0-wmf.17/includes/specials/pagers/ActiveUsersPager.php: PHP Notice: Undefined index: dir	1,490

includes/specials/pagers/ActiveUsersPager.php: PHP Notice: Undefined index: dirClosed, ResolvedPublicPRODUCTION ERRORActions