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PHP Warning: Undefined array key "blockConnectedTempAccounts"
Closed, ResolvedPublicPRODUCTION ERROR

Description

Error
  • mwversion: 1.46.0-wmf.22
  • timestamp: 2026-04-06T15:08:18.283Z
  • phpversion: 8.3.30
  • reqId: c6cc9456-6beb-478a-8c48-2e47c388a6fb
  • Find reqId in Logstash
normalized_message
[{reqId}] {exception_url}   PHP Warning: Undefined array key "blockConnectedTempAccounts"
FrameLocationCall
from/srv/mediawiki/php-1.46.0-wmf.22/extensions/CheckUser/src/HookHandler/BlockConnectedAccounts.php(53)
#0/srv/mediawiki/php-1.46.0-wmf.22/extensions/CheckUser/src/HookHandler/BlockConnectedAccounts.php(53)MediaWiki\Exception\MWExceptionHandler::handleError(int, string, string, int)
#1/srv/mediawiki/php-1.46.0-wmf.22/includes/HookContainer/HookContainer.php(135)MediaWiki\Extension\CheckUser\HookHandler\BlockConnectedAccounts->onApiBlockSucceeded(MediaWiki\Api\ApiBlock, MediaWiki\User\User, MediaWiki\User\UserIdentityValue, array, array)
#2/srv/mediawiki/php-1.46.0-wmf.22/includes/Api/ApiHookRunner.php(85)MediaWiki\HookContainer\HookContainer->run(string, array)
#3/srv/mediawiki/php-1.46.0-wmf.22/includes/Api/ApiBlock.php(120)MediaWiki\Api\ApiHookRunner->onApiBlockSucceeded(MediaWiki\Api\ApiBlock, MediaWiki\User\User, MediaWiki\User\UserIdentityValue, array, array)
#4/srv/mediawiki/php-1.46.0-wmf.22/includes/Api/ApiMain.php(2059)MediaWiki\Api\ApiBlock->execute()
#5/srv/mediawiki/php-1.46.0-wmf.22/includes/Api/ApiMain.php(964)MediaWiki\Api\ApiMain->executeAction()
#6/srv/mediawiki/php-1.46.0-wmf.22/includes/Api/ApiMain.php(935)MediaWiki\Api\ApiMain->executeActionWithErrorHandling()
#7/srv/mediawiki/php-1.46.0-wmf.22/includes/Api/ApiEntryPoint.php(138)MediaWiki\Api\ApiMain->execute()
#8/srv/mediawiki/php-1.46.0-wmf.22/includes/MediaWikiEntryPoint.php(180)MediaWiki\Api\ApiEntryPoint->execute()
#9/srv/mediawiki/php-1.46.0-wmf.22/api.php(30)MediaWiki\MediaWikiEntryPoint->run()
#10/srv/mediawiki/w/api.php(3)require(string)
#11{main}
Impact

Low logging rate.

Notes

Started happening around April 1, 2026.

Event Timeline

Restricted Application added a subscriber: Aklapper. · View Herald Transcript

@STran Can you take a look at this please?

Change #1268437 had a related patch set uploaded (by STran; author: STran):

[mediawiki/extensions/CheckUser@master] Fix blockConnectedTempAccounts existence error

https://gerrit.wikimedia.org/r/1268437

Change #1268437 merged by jenkins-bot:

[mediawiki/extensions/CheckUser@master] Fix blockConnectedTempAccounts existence error

https://gerrit.wikimedia.org/r/1268437

Change #1268518 had a related patch set uploaded (by STran; author: STran):

[mediawiki/extensions/CheckUser@wmf/1.46.0-wmf.22] Fix blockConnectedTempAccounts existence error

https://gerrit.wikimedia.org/r/1268518

Change #1268519 had a related patch set uploaded (by STran; author: STran):

[mediawiki/extensions/CheckUser@wmf/1.46.0-wmf.23] Fix blockConnectedTempAccounts existence error

https://gerrit.wikimedia.org/r/1268519

Change #1268518 merged by jenkins-bot:

[mediawiki/extensions/CheckUser@wmf/1.46.0-wmf.22] Fix blockConnectedTempAccounts existence error

https://gerrit.wikimedia.org/r/1268518

Change #1268519 merged by jenkins-bot:

[mediawiki/extensions/CheckUser@wmf/1.46.0-wmf.23] Fix blockConnectedTempAccounts existence error

https://gerrit.wikimedia.org/r/1268519

Dreamy_Jazz subscribed.

Haven't seen any more logs since the deployment of the fix to all wikis. Can reopen if logs are still occurring, but tentatively resolving as fixed for now