What is the problem?
On beta, I have just seen a few (~10) errors in the log files like:
2021-10-19 08:30:32 [YW6Af7dFj9pRb7vGZ703ZAAAAE8] deployment-parsoid12 commonswiki 1.38.0-alpha exception ERROR: [YW6Af7dFj9pRb7vGZ703ZAAAAE8] /w/rest.php/commons.wikimedia.beta.wmflabs.org/v3/page/pagebundle/File%3AKjjk.jpg/240365 Error: Class 'Wikimedia\Parsoid\NodeData\DataBag' not found {"exception_url":"/w/rest.php/commons.wikimedia.beta.wmflabs.org/v3/page/pagebundle/File%3AKjjk.jpg/240365","reqId":"YW6Af7dFj9pRb7vGZ703ZAAAAE8","caught_by":"mwe_handler"} [Error Error] (/srv/mediawiki/php-master/vendor/wikimedia/parsoid/src/Utils/DOMDataUtils.php:44) Class 'Wikimedia\Parsoid\NodeData\DataBag' not found #0 /srv/mediawiki/php-master/vendor/wikimedia/parsoid/src/Config/Env.php(750): Wikimedia\Parsoid\Utils\DOMDataUtils::prepareDoc(Wikimedia\Parsoid\DOM\Compat\Document) #1 /srv/mediawiki/php-master/vendor/wikimedia/parsoid/src/Config/Env.php(314): Wikimedia\Parsoid\Config\Env->setupTopLevelDoc(NULL) #2 /srv/mediawiki/php-master/vendor/wikimedia/parsoid/src/Parsoid.php(155): Wikimedia\Parsoid\Config\Env->__construct(MWParsoid\Config\SiteConfig, MWParsoid\Config\PageConfig, MWParsoid\Config\DataAccess, array) #3 /srv/mediawiki/php-master/vendor/wikimedia/parsoid/src/Parsoid.php(198): Wikimedia\Parsoid\Parsoid->parseWikitext(MWParsoid\Config\PageConfig, array) #4 /srv/mediawiki/php-master/vendor/wikimedia/parsoid/extension/src/Rest/Handler/ParsoidHandler.php(589): Wikimedia\Parsoid\Parsoid->wikitext2html(MWParsoid\Config\PageConfig, array, NULL) #5 /srv/mediawiki/php-master/vendor/wikimedia/parsoid/extension/src/Rest/Handler/PageHandler.php(88): MWParsoid\Rest\Handler\ParsoidHandler->wt2html(MWParsoid\Config\PageConfig, array) #6 /srv/mediawiki/php-master/includes/Rest/Router.php(403): MWParsoid\Rest\Handler\PageHandler->execute() #7 /srv/mediawiki/php-master/includes/Rest/Router.php(330): MediaWiki\Rest\Router->executeHandler(MWParsoid\Rest\Handler\PageHandler) #8 /srv/mediawiki/php-master/includes/Rest/EntryPoint.php(165): MediaWiki\Rest\Router->execute(MediaWiki\Rest\RequestFromGlobals) #9 /srv/mediawiki/php-master/includes/Rest/EntryPoint.php(130): MediaWiki\Rest\EntryPoint->execute() #10 /srv/mediawiki/php-master/rest.php(31): MediaWiki\Rest\EntryPoint::main() #11 /srv/mediawiki/w/rest.php(3): require(string) #12 {main}
@hashar I don't know if this will affect the train.
Steps to reproduce problem
Not sure how to reproduce. It was not related to anything I was doing. I just happened to be watching the log files at the time.
EDIT: It seems to happen everytime I publish an edit on a beta wiki (including commons, enwiki).
Environment
Wiki(s): Seem to be coming from: https://commons.wikimedia.beta.wmflabs.org MediaWiki 1.38.0-alpha (66e58d1) 03:30, 19 October 2021.