Wikimedia\Rdbms\DBQueryError: Error 1062: Duplicate entry 'Botanik' for key 'pap_project_title' (db2107)Function: MediaWiki\Extension\PageAssessments\PageAssessmentsDAO::insertProjectQuery: INSERT INTO `page_assessments_projects` (pap_project_title,pap_project_id) VALUES ('Botanik',NULL)
Closed, ResolvedPublic1 Estimated Story PointsPRODUCTION ERROR
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Description

Error

mwversion: 1.37.0-wmf.12
reqId: 26e7a0ba-8229-4670-90a5-99c65cce18de
Find reqId in Logstash
Find normalized_message in Logstash

normalized_message

[{reqId}] {exception_url}   Wikimedia\Rdbms\DBQueryError: Error 1062: Duplicate entry 'Botanik' for key 'pap_project_title' (db2107)
Function: MediaWiki\Extension\PageAssessments\PageAssessmentsDAO::insertProject
Query: INSERT INTO `page_assessments_proje

exception.trace

from /srv/mediawiki/php-1.37.0-wmf.12/includes/libs/rdbms/database/Database.php(1760)
#0 /srv/mediawiki/php-1.37.0-wmf.12/includes/libs/rdbms/database/Database.php(1744): Wikimedia\Rdbms\Database->getQueryException(string, integer, string, string)
#1 /srv/mediawiki/php-1.37.0-wmf.12/includes/libs/rdbms/database/Database.php(1719): Wikimedia\Rdbms\Database->getQueryExceptionAndLog(string, integer, string, string)
#2 /srv/mediawiki/php-1.37.0-wmf.12/includes/libs/rdbms/database/Database.php(1283): Wikimedia\Rdbms\Database->reportQueryError(string, integer, string, string, boolean)
#3 /srv/mediawiki/php-1.37.0-wmf.12/includes/libs/rdbms/database/Database.php(2406): Wikimedia\Rdbms\Database->query(string, string, integer)
#4 /srv/mediawiki/php-1.37.0-wmf.12/includes/libs/rdbms/database/Database.php(2386): Wikimedia\Rdbms\Database->doInsert(string, array, string)
#5 /srv/mediawiki/php-1.37.0-wmf.12/includes/libs/rdbms/database/DBConnRef.php(68): Wikimedia\Rdbms\Database->insert(string, array, string)
#6 /srv/mediawiki/php-1.37.0-wmf.12/includes/libs/rdbms/database/DBConnRef.php(373): Wikimedia\Rdbms\DBConnRef->__call(string, array)
#7 /srv/mediawiki/php-1.37.0-wmf.12/extensions/PageAssessments/src/PageAssessmentsDAO.php(207): Wikimedia\Rdbms\DBConnRef->insert(string, array, string)
#8 /srv/mediawiki/php-1.37.0-wmf.12/extensions/PageAssessments/src/PageAssessmentsDAO.php(73): MediaWiki\Extension\PageAssessments\PageAssessmentsDAO::insertProject(string)
#9 /srv/mediawiki/php-1.37.0-wmf.12/extensions/PageAssessments/src/Hooks.php(73): MediaWiki\Extension\PageAssessments\PageAssessmentsDAO::doUpdates(Title, array, integer)
#10 /srv/mediawiki/php-1.37.0-wmf.12/includes/HookContainer/HookContainer.php(338): MediaWiki\Extension\PageAssessments\Hooks::onLinksUpdateComplete(LinksUpdate, integer)
#11 /srv/mediawiki/php-1.37.0-wmf.12/includes/HookContainer/HookContainer.php(137): MediaWiki\HookContainer\HookContainer->callLegacyHook(string, array, array, array)
#12 /srv/mediawiki/php-1.37.0-wmf.12/includes/HookContainer/HookRunner.php(2330): MediaWiki\HookContainer\HookContainer->run(string, array)
#13 /srv/mediawiki/php-1.37.0-wmf.12/includes/deferred/LinksUpdate.php(214): MediaWiki\HookContainer\HookRunner->onLinksUpdateComplete(LinksUpdate, integer)
#14 /srv/mediawiki/php-1.37.0-wmf.12/includes/deferred/AutoCommitUpdate.php(44): LinksUpdate->{closure}(Wikimedia\Rdbms\MaintainableDBConnRef, string)
#15 /srv/mediawiki/php-1.37.0-wmf.12/includes/deferred/DeferredUpdates.php(513): AutoCommitUpdate->doUpdate()
#16 /srv/mediawiki/php-1.37.0-wmf.12/includes/deferred/DeferredUpdates.php(390): DeferredUpdates::attemptUpdate(AutoCommitUpdate, Wikimedia\Rdbms\LBFactoryMulti)
#17 /srv/mediawiki/php-1.37.0-wmf.12/includes/deferred/DeferredUpdates.php(234): DeferredUpdates::run(AutoCommitUpdate, Wikimedia\Rdbms\LBFactoryMulti, Monolog\Logger, BufferingStatsdDataFactory, string)
#18 /srv/mediawiki/php-1.37.0-wmf.12/includes/deferred/DeferredUpdatesScope.php(267): DeferredUpdates::{closure}(AutoCommitUpdate, integer)
#19 /srv/mediawiki/php-1.37.0-wmf.12/includes/deferred/DeferredUpdatesScope.php(196): DeferredUpdatesScope->processStageQueue(integer, integer, Closure)
#20 /srv/mediawiki/php-1.37.0-wmf.12/includes/deferred/DeferredUpdates.php(237): DeferredUpdatesScope->processUpdates(integer, Closure)
#21 /srv/mediawiki/php-1.37.0-wmf.12/includes/deferred/DeferredUpdatesScope.php(264): DeferredUpdates::{closure}(RefreshSecondaryDataUpdate, integer)
#22 /srv/mediawiki/php-1.37.0-wmf.12/includes/deferred/DeferredUpdatesScope.php(196): DeferredUpdatesScope->processStageQueue(integer, integer, Closure)
#23 /srv/mediawiki/php-1.37.0-wmf.12/includes/deferred/DeferredUpdates.php(242): DeferredUpdatesScope->processUpdates(integer, Closure)
#24 /srv/mediawiki/php-1.37.0-wmf.12/includes/MediaWiki.php(1128): DeferredUpdates::doUpdates(string)
#25 /srv/mediawiki/php-1.37.0-wmf.12/includes/MediaWiki.php(838): MediaWiki->restInPeace()
#26 /srv/mediawiki/php-1.37.0-wmf.12/api.php(125): MediaWiki->doPostOutputShutdown()
#27 /srv/mediawiki/php-1.37.0-wmf.12/api.php(45): wfApiMain()
#28 /srv/mediawiki/w/api.php(3): require(string)
#29 {main}

Impact

TBD

Notes

Referer is https://tr.wikipedia.org/w/index.php?title=*&action=edit&redlink=1, so likely an ajax part of the extension connecting to its API and failing to do what it was meant to do.

Details

Request URL: https://tr.wikipedia.org/w/api.php

	Project	Branch	Lines +/-	Subject
	mediawiki/extensions/PageAssessments	master	+4 -1	Use IGNORE to prevent duplicate entry errors when adding new projects

Customize query in gerrit

Related Objects

Mentioned Here: T152080: Frequent duplicate key errors by page assessments

Event Timeline

Krinkle created this task.Jul 14 2021, 6:18 PM

Restricted Application added a subscriber: Aklapper. · View Herald TranscriptJul 14 2021, 6:18 PM

Krinkle moved this task from Untriaged to July 2021 on the Wikimedia-production-error board.Jul 14 2021, 6:39 PM

HMonroy edited projects, added Community-Tech (CommTech-Sprint-4); removed Community-Tech.Jul 15 2021, 12:07 AM

The API is read-only, so that's not it. The INSERTs happen when a page is saved that uses the {{#assessment}} parser function, in this case https://tr.wikipedia.org/wiki/Tartışma:Janaki_Ammal.

My guess is here the user clicked "Publish changes" twice in very quick succession, such that when the second request happened it didn't know about the 'Botanik' project since it hadn't been replicated yet (PageAssessmentsDAO.php#L183), so it tried to INSERT it again. Given we already have a check to prevent duplicate projects from being inserted, I suppose the quick and simple solution here is to add an IGNORE when INSERTing, as we'd rather not change the fetching of project IDs to use DB_PRIMARY. We did the same thing when inserting individual assessments, too (T152080).

As a side note, while a WikiProject called 'Botanik' exists in the database, it doesn't seem to actually exist on the wiki, judging by the red links at https://tr.wikipedia.org/wiki/Tartışma:Janaki_Ammal. The editor probably introduced a typo or something.

Change 704832 had a related patch set uploaded (by MusikAnimal; author: MusikAnimal):

[mediawiki/extensions/PageAssessments@master] Use IGNORE to prevent duplicate entry errors when adding new projects

https://gerrit.wikimedia.org/r/704832

gerritbot added a project: Patch-For-Review.Jul 15 2021, 3:52 PM

MusikAnimal moved this task from In Development 💻 to Review/Feedback 💬 on the Community-Tech (CommTech-Sprint-4) board.Jul 15 2021, 3:52 PM

MusikAnimal set the point value for this task to 1.

Change 704832 merged by jenkins-bot:

[mediawiki/extensions/PageAssessments@master] Use IGNORE to prevent duplicate entry errors when adding new projects

https://gerrit.wikimedia.org/r/704832

ReleaseTaggerBot added a project: MW-1.37-notes (1.37.0-wmf.15; 2021-07-19).Jul 16 2021, 8:00 AM

Maintenance_bot removed a project: Patch-For-Review.Jul 16 2021, 8:10 AM

This will be pretty difficult if not impossible to QA. I'm not even sure PageAssessents is installed on the Beta cluster. At any rate, the patch should prevent this error from happening again and shouldn't have any side effects. I'll be bold and close this as resolved.