PHP Fatal Error: Interface 'Wikibase\DataModel\Statement\StatementListHolder' not found
Closed, DuplicatePublicPRODUCTION ERROR
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Assigned To

None

Authored By

	Krinkle
	May 28 2019, 3:39 PM

Description

Error

Request URL: /wiki/{Page_title} (Wikipedias, page views)
Request ID: XO1PdApAADkAAHQOESkAAAAB

message

[{exception_id}] {exception_url}   PHP Fatal Error from line 29 of /srv/mediawiki/php-1.34.0-wmf.6/vendor/wikibase/data-model/src/Entity/Item.php: Interface 'Wikibase\DataModel\Statement\StatementListHolder' not found

trace

#0 [internal function]: MWExceptionHandler::handleFatalError()
#1 {main}

Impact

Users in the PHP 7 traffic bucket, are sometimes unable to view pages. They are instead getting a fatal error due to a Wikibase class being undefined.

These result in a generic system error page, which leave users stranded. The HTTP responses (status code 500) are not cached.

Notes

It seems there is no useful stacktrace. Ping T187147.

Related Objects

Mentioned Here: T224491: PHP 7 corruption during deployment (was: PHP 7 fatals on mw1262)
T187147: Port mediawiki/php/wmerrors to PHP7 and deploy

Event Timeline

Krinkle created this task.May 28 2019, 3:39 PM

Restricted Application added a subscriber: Aklapper. · View Herald TranscriptMay 28 2019, 3:39 PM

Lydia_Pintscher added a project: Wikidata-Campsite.May 28 2019, 3:41 PM

Lydia_Pintscher moved this task from Incoming to Ready to estimate on the Wikidata-Campsite board.

Krinkle moved this task from Untriaged to Sep2019/1.34.wmf.21+ on the Wikimedia-production-error board.May 28 2019, 3:44 PM

False alarm. These are limited to a single server only (mw1262) and PHP 7, which suggests to me it is a problem with the opcache or something else operational like Scap, and not Wikibase. See T224491.

Krinkle moved this task from Sep2019/1.34.wmf.21+ to Resolved on the Wikimedia-production-error board.May 29 2019, 4:27 PM

• mmodell changed the subtype of this task from "Task" to "Production Error".Aug 28 2019, 11:06 PM

PHP Fatal Error: Interface 'Wikibase\DataModel\Statement\StatementListHolder' not foundClosed, DuplicatePublicPRODUCTION ERRORActions