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TypeError: MediaWiki\Extension\WikiLambda\ZObjects\ZPersistentObject::getZid(): Return value must be of type string, null returned
Open, MediumPublicPRODUCTION ERROR
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Description

Error
  • service.version: 1.45.0-wmf.22
  • timestamp: 2025-10-08T23:56:08.409Z
  • labels.phpversion: 8.1.33
  • trace.id: 1838ef7b-0f7f-4ef9-837f-2ab56c180757
  • Find trace.id in Logstash
labels.normalized_message
[{reqId}] {exception_url}   TypeError: MediaWiki\Extension\WikiLambda\ZObjects\ZPersistentObject::getZid(): Return value must be of type string, null returned
FrameLocationCall
from/srv/mediawiki/php-1.45.0-wmf.22/extensions/WikiLambda/includes/ZObjects/ZPersistentObject.php(181)
#0/srv/mediawiki/php-1.45.0-wmf.22/extensions/WikiLambda/includes/ZObjects/ZPersistentObject.php(86)MediaWiki\Extension\WikiLambda\ZObjects\ZPersistentObject->getZid()
#1/srv/mediawiki/php-1.45.0-wmf.22/extensions/WikiLambda/includes/ZObjectFactory.php(142)MediaWiki\Extension\WikiLambda\ZObjects\ZPersistentObject->isValid()
#2/srv/mediawiki/php-1.45.0-wmf.22/extensions/WikiLambda/includes/ZObjectContent.php(175)MediaWiki\Extension\WikiLambda\ZObjectFactory::createPersistentContent(stdClass)
#3/srv/mediawiki/php-1.45.0-wmf.22/extensions/WikiLambda/includes/ZObjectContent.php(189)MediaWiki\Extension\WikiLambda\ZObjectContent->validateContent()
#4/srv/mediawiki/php-1.45.0-wmf.22/extensions/WikiLambda/includes/ZObjectStore.php(367)MediaWiki\Extension\WikiLambda\ZObjectContent->isValid()
#5/srv/mediawiki/php-1.45.0-wmf.22/extensions/WikiLambda/includes/ZObjectStore.php(320)MediaWiki\Extension\WikiLambda\ZObjectStore->updateZObject(MediaWiki\Extension\WikiLambda\ActionAPI\ApiZObjectEditor, string, string, string, MediaWiki\User\User, int)
#6/srv/mediawiki/php-1.45.0-wmf.22/extensions/WikiLambda/includes/ActionAPI/ApiZObjectEditor.php(58)MediaWiki\Extension\WikiLambda\ZObjectStore->createNewZObject(MediaWiki\Extension\WikiLambda\ActionAPI\ApiZObjectEditor, string, string, MediaWiki\User\User)
#7/srv/mediawiki/php-1.45.0-wmf.22/extensions/WikiLambda/includes/ActionAPI/WikiLambdaApiBase.php(86)MediaWiki\Extension\WikiLambda\ActionAPI\ApiZObjectEditor->run()
#8/srv/mediawiki/php-1.45.0-wmf.22/includes/api/ApiMain.php(2036)MediaWiki\Extension\WikiLambda\ActionAPI\WikiLambdaApiBase->execute()
#9/srv/mediawiki/php-1.45.0-wmf.22/includes/api/ApiMain.php(944)MediaWiki\Api\ApiMain->executeAction()
#10/srv/mediawiki/php-1.45.0-wmf.22/includes/api/ApiMain.php(915)MediaWiki\Api\ApiMain->executeActionWithErrorHandling()
#11/srv/mediawiki/php-1.45.0-wmf.22/includes/api/ApiEntryPoint.php(138)MediaWiki\Api\ApiMain->execute()
#12/srv/mediawiki/php-1.45.0-wmf.22/includes/MediaWikiEntryPoint.php(184)MediaWiki\Api\ApiEntryPoint->execute()
#13/srv/mediawiki/php-1.45.0-wmf.22/api.php(30)MediaWiki\MediaWikiEntryPoint->run()
#14/srv/mediawiki/w/api.php(3)require(string)
#15{main}
Notes
  • Started in 1.45.0-wmf.22
  • Just the one occurrence :)

Details

Request URL
https://www.wikifunctions.org/w/api.php

Event Timeline

jnuche created this task.Oct 9 2025, 3:37 PM
Jdforrester-WMF triaged this task as Medium priority.Oct 15 2025, 5:41 PM
Jdforrester-WMF moved this task from To Triage to Bugs to investigate on the Abstract Wikipedia team board.
Jdforrester-WMF added a project: Essential-Work.
thcipriani moved this task from Untriaged to Oct-Dec 2025 on the Wikimedia-production-error board.Nov 13 2025, 4:27 PM
DSmit-WMF subscribed.Nov 26 2025, 9:07 AM

I tried to query the dashboard of wikilambda and the orchestrator for the reqId mentioned, but couldnt find any data: https://logstash.wikimedia.org/app/dashboards#/view/c1a91950-1b5c-11ee-ac22-318c372b3db7?_g=(filters:!(),refreshInterval:(pause:!t,value:0),time:(from:now-4M,to:now))&_a=(description:'Dashboard%20for%20Wikifunctions%20services%20(service-runner%20service).%20https:%2F%2Fwikitech.wikimedia.org%2Fwiki%2FWikifunctions',filters:!(('$state':(store:appState),meta:(alias:!n,disabled:!f,index:'logstash-*',key:channel,negate:!f,params:!(WikiLambda,WikiLambdaClient),type:phrases,value:'WikiLambda,%20WikiLambdaClient'),query:(bool:(minimum_should_match:1,should:!((match_phrase:(channel:WikiLambda)),(match_phrase:(channel:WikiLambdaClient)))))),('$state':(store:appState),meta:(alias:!n,disabled:!f,index:'logstash-*',key:type,negate:!f,params:(query:mediawiki),type:phrase),query:(match_phrase:(type:mediawiki))),('$state':(store:appState),meta:(alias:!n,disabled:!f,index:'logstash-*',key:level,negate:!t,params:(query:INFO),type:phrase),query:(match_phrase:(level:INFO))),('$state':(store:appState),meta:(alias:!n,disabled:!f,index:'logstash-*',key:reqId,negate:!f,params:(query:'1838ef7b-0f7f-4ef9-837f-2ab56c180757'),type:phrase),query:(match_phrase:(reqId:'1838ef7b-0f7f-4ef9-837f-2ab56c180757')))),fullScreenMode:!f,options:(darkTheme:!f,useMargins:!t),query:(language:lucene,query:'*'),timeRestore:!f,title:wikifunctions,viewMode:view)

ecarg subscribed.EditedNov 26 2025, 4:03 PM

@DSmit-WMF I tried removing all of the filters from our WL Logstash and found something ( details ) but I can't see that id in the backend logs yet 👀

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