PHP Notice: Undefined index: main()
Closed, ResolvedPublicPRODUCTION ERROR
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Assigned To

Authored By

	• dpifke
	Jan 12 2021, 10:10 PM

Description

Error

MediaWiki version: 1.36.0-wmf.26

message

PHP Notice: Undefined index: main()

Impact

Only affects debugging requests. Not clear if this is preventing XHGui from functioning.

Notes

Details

Request ID: X-4FKwpAAC4AAHPAYQIAAABY
Request URL: https://test.wikipedia.org/w/load.php?lang=en&modules=ext.visualEditor.core.utils.parsing%7Cext.visualEditor.desktopArticleTarget.init%7Cext.visualEditor.progressBarWidget%2CsupportCheck%2CtargetLoader%2CtempWikitextEditorWidget%2Ctrack%2Cve&skin=vector&version=e67ir

Stack Trace

exception.trace

#0 /srv/mediawiki/lib/xhgui-collector/src/Xhgui_Saver_Pdo.php(84): MWExceptionHandler::handleError(integer, string, string, integer, array)
#1 /srv/mediawiki/wmf-config/profiler.php(192): Xhgui_Saver_Pdo->save(array)
#2 [internal function]: {closure}()
#3 {main}

	Subject	Repo	Branch	Lines +/-
	profiler: guard against missing data	operations/mediawiki-config	master	+5 -0

Customize query in gerrit

Related Objects

Mentioned Here: T259952: Disallow enabling "XHGui" and "Inline profile" together

Event Timeline

• dpifke created this task.Jan 12 2021, 10:10 PM

Restricted Application added a subscriber: Aklapper. · View Herald TranscriptJan 12 2021, 10:10 PM

• dpifke claimed this task.Jan 12 2021, 10:11 PM

• dpifke moved this task from Inbox, needs triage to Doing (old) on the Performance-Team board.

• dpifke moved this task from Untriaged to Jan 2021 on the Wikimedia-production-error board.

Aklapper added a project: WikimediaDebug.Jan 13 2021, 10:50 AM

Krinkle triaged this task as Medium priority.Jan 27 2021, 8:55 PM

Change 659453 had a related patch set uploaded (by Dave Pifke; owner: Dave Pifke):
[operations/mediawiki-config@master] profiler: guard against missing data

https://gerrit.wikimedia.org/r/659453

gerritbot added a project: Patch-For-Review.Jan 28 2021, 11:25 PM

To reproduce this, use WikimediaDebug with both "Inline profile" and "XHGui" enabled. As previously observed in T259952, that means the profile is already flushed by the MW Profiler, and thus our XHGui client draws the short straw ending up with an empty array.

Change 659453 merged by jenkins-bot:
[operations/mediawiki-config@master] profiler: guard against missing data