Page MenuHomePhabricator
Create Task
Maniphest T388087

CentralAuthIdLookup::lookupUserNames: Wikimedia\NormalizedException\NormalizedException: invalid username: {name} (via Special:Contributions or Special:BlockList)
Open, Needs TriagePublicPRODUCTION ERROR
Actions

Description

There is a big spike of these, about 1000/hour:

Screenshot Capture - 2025-03-06 - 03-04-09.png (1,328×424 px, 39 KB)

(logstash)

Probably the same issue as T377588: CentralAuthIdLookup throws from CentralAuthUser for username with a colon, and the spike is due to rECAU8a71203e0999: CentralAuthIdLookup: Reuse cached object on single-value lookup making CentralAuthIdLookup use CentralAuthUser internally.

Error
  • service.version: 1.45.0-wmf.8
  • timestamp: 2025-07-09T22:15:11.897Z
  • labels.phpversion: 8.1.32
  • trace.id: a5a3ec7f-7dcf-4fac-8538-3d3869b876e2
  • Find trace.id in Logstash
labels.normalized_message
[{reqId}] {exception_url}   Wikimedia\NormalizedException\NormalizedException: Invalid username: {username}
FrameLocationCall
from/srv/mediawiki/php-1.45.0-wmf.8/extensions/CentralAuth/includes/User/CentralAuthUser.php(229)
#0/srv/mediawiki/php-1.45.0-wmf.8/extensions/CentralAuth/includes/User/CentralAuthUser.php(244)MediaWiki\Extension\CentralAuth\User\CentralAuthUser::normalizeUsername(string)
#1/srv/mediawiki/php-1.45.0-wmf.8/extensions/CentralAuth/includes/User/CentralAuthUser.php(208)MediaWiki\Extension\CentralAuth\User\CentralAuthUser::getInstanceByName(string)
#2/srv/mediawiki/php-1.45.0-wmf.8/extensions/CentralAuth/includes/User/CentralAuthIdLookup.php(371)MediaWiki\Extension\CentralAuth\User\CentralAuthUser::getInstance(MediaWiki\User\User)
#3/srv/mediawiki/php-1.45.0-wmf.8/extensions/CentralAuth/includes/User/CentralAuthIdLookup.php(341)MediaWiki\Extension\CentralAuth\User\CentralAuthIdLookup->getCentralUserInstance(MediaWiki\User\User, int)
#4/srv/mediawiki/php-1.45.0-wmf.8/extensions/CentralAuth/includes/User/CentralAuthIdLookup.php(322)MediaWiki\Extension\CentralAuth\User\CentralAuthIdLookup->isAttachedOn(MediaWiki\User\User, string, int)
#5/srv/mediawiki/php-1.45.0-wmf.8/extensions/GlobalBlocking/includes/Services/GlobalBlockLookup.php(236)MediaWiki\Extension\CentralAuth\User\CentralAuthIdLookup->centralIdFromLocalUser(MediaWiki\User\User, int)
#6/srv/mediawiki/php-1.45.0-wmf.8/extensions/GlobalBlocking/includes/Services/GlobalBlockLookup.php(95)MediaWiki\Extension\GlobalBlocking\Services\GlobalBlockLookup->getUserBlockDetails(MediaWiki\User\User, null)
#7/srv/mediawiki/php-1.45.0-wmf.8/extensions/GlobalBlocking/includes/GlobalBlockingHooks.php(103)MediaWiki\Extension\GlobalBlocking\Services\GlobalBlockLookup->getUserBlock(MediaWiki\User\User, null)
#8/srv/mediawiki/php-1.45.0-wmf.8/includes/HookContainer/HookContainer.php(155)MediaWiki\Extension\GlobalBlocking\GlobalBlockingHooks->onGetUserBlock(MediaWiki\User\User, null, null)
#9/srv/mediawiki/php-1.45.0-wmf.8/includes/HookContainer/HookRunner.php(2028)MediaWiki\HookContainer\HookContainer->run(string, array)
#10/srv/mediawiki/php-1.45.0-wmf.8/includes/block/BlockManager.php(227)MediaWiki\HookContainer\HookRunner->onGetUserBlock(MediaWiki\User\User, null, null)
#11/srv/mediawiki/php-1.45.0-wmf.8/includes/user/User.php(1465)MediaWiki\Block\BlockManager->getBlock(MediaWiki\User\User, null, bool)
#12/srv/mediawiki/php-1.45.0-wmf.8/includes/user/User.php(1543)MediaWiki\User\User->getBlock()
#13/srv/mediawiki/php-1.45.0-wmf.8/includes/specialpage/ContributionsSpecialPage.php(639)MediaWiki\User\User->isHidden()
#14/srv/mediawiki/php-1.45.0-wmf.8/includes/specialpage/ContributionsSpecialPage.php(439)MediaWiki\SpecialPage\ContributionsSpecialPage->getUserLink(MediaWiki\User\User)
#15/srv/mediawiki/php-1.45.0-wmf.8/includes/specialpage/ContributionsSpecialPage.php(242)MediaWiki\SpecialPage\ContributionsSpecialPage->contributionsSub(MediaWiki\User\User, string)
#16/srv/mediawiki/php-1.45.0-wmf.8/includes/specialpage/SpecialPage.php(732)MediaWiki\SpecialPage\ContributionsSpecialPage->execute(string)
#17/srv/mediawiki/php-1.45.0-wmf.8/includes/specialpage/SpecialPageFactory.php(1724)MediaWiki\SpecialPage\SpecialPage->run(string)
#18/srv/mediawiki/php-1.45.0-wmf.8/includes/actions/ActionEntryPoint.php(499)MediaWiki\SpecialPage\SpecialPageFactory->executePath(string, MediaWiki\Context\RequestContext)
#19/srv/mediawiki/php-1.45.0-wmf.8/includes/actions/ActionEntryPoint.php(143)MediaWiki\Actions\ActionEntryPoint->performRequest()
#20/srv/mediawiki/php-1.45.0-wmf.8/includes/MediaWikiEntryPoint.php(198)MediaWiki\Actions\ActionEntryPoint->execute()
#21/srv/mediawiki/php-1.45.0-wmf.8/index.php(58)MediaWiki\MediaWikiEntryPoint->run()
#22/srv/mediawiki/w/index.php(3)require(string)
#23{main}
Impact
Notes

Details

MediaWiki Version
1.45.0-wmf.8

Related Objects

Event Timeline

Tgr created this task.Mar 6 2025, 2:06 AM
Restricted Application added a project: MediaWiki-Platform-Team. · View Herald TranscriptMar 6 2025, 2:06 AM
Restricted Application changed the subtype of this task from "Task" to "Production Error". · View Herald Transcript
Restricted Application added a subscriber: Aklapper. · View Herald Transcript
Tgr added a comment.Mar 6 2025, 2:13 AM

The errors are from Special:Contributions and Special:BlockList; the usernames are either IP addresses or something nonsensical (like a filename). CentralAuthIdLookup swallows the error and returns no user found, so no user impact, just log noise. (Also it logs at warning level, so I guess this technically doesn't qualify as Wikimedia-production-error.)

Tgr mentioned this in T384007: SUL3 Phase 1: All new account creation on group 0 and group 1 wikis.Mar 6 2025, 4:27 PM
Reedy moved this task from Untriaged to Mar 2025 on the Wikimedia-production-error board.Mar 6 2025, 10:28 PM
• larissagaulia moved this task from Inbox, needs triage to DO NOT USE (was: Not planned) on the MediaWiki-Platform-Team board.Mar 10 2025, 3:31 PM
• DAlangi_WMF updated the task description. (Show Details)Mar 11 2025, 12:57 PM
Krinkle moved this task from Mar 2025 to Jan-Mar 2025 on the Wikimedia-production-error board.Apr 1 2025, 2:11 AM
Aklapper renamed this task from CentralAuthIdLookup::lookupUserNames: invalid username: {name} to CentralAuthIdLookup::lookupUserNames: Wikimedia\NormalizedException\NormalizedException: invalid username: {name} (via Special:Contributions or Special:BlockList).Jul 10 2025, 9:12 AM
Aklapper updated the task description. (Show Details)
Aklapper set Release Version to 1.45.0-wmf.8.
brennen added a project: User-brennen.Jul 31 2025, 3:35 PM
brennen subscribed.

Still noted in 1.45.0-wmf.12.

brennen moved this task from Backlog to Logs/Train on the User-brennen board.Aug 1 2025, 5:09 PM
• DAlangi_WMF subscribed.Aug 8 2025, 5:10 PM
In T388087#10608434, @Tgr wrote:

just log noise. (Also it logs at warning level, so I guess this technically doesn't qualify as Wikimedia-production-error.)

I'm still seeing these on 1.45.0-wmf.13 and they seem to be logged as errors and not warnings. Is there something we can do about this? Maybe make them actual warnings because if a username is invalid, it's invalid and there is very little we can do about it?

Tgr added a comment.Aug 9 2025, 8:34 PM

We could make sure all CentralAuthUser calls are noop when the username is invalid, and then relax the restrictions for getInstanceByName() etc.

OWresch-WMF moved this task from DO NOT USE (was: Not planned) to Not planned / Patches welcome on the MediaWiki-Platform-Team board.Jan 20 2026, 12:21 PM
Content licensed under Creative Commons Attribution-ShareAlike (CC BY-SA) 4.0 unless otherwise noted; code licensed under GNU General Public License (GPL) 2.0 or later and other open source licenses. By using this site, you agree to the Terms of Use, Privacy Policy, and Code of Conduct. · Wikimedia Foundation · Privacy Policy · Code of Conduct · Terms of Use · Disclaimer · CC-BY-SA · GPL · Credits