Re: Watchlists load is pin-wheeling under MW 1.35.2

This showed up under Firefox's Developer Console:

[YHF-iM3bssmAK8d51LBMIQAAAAM]
/w/load.php?lang=en&modules=jquery%2Coojs%2Coojs-ui-core%2Coojs-ui-widgets%2Csite%7Cjquery.client%2Ccookie%2CmakeCollapsible%7Cjquery.makeCollapsible.styles%7Cmediawiki.String%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2CjqueryMsg%2Clanguage%2Cuser%2Cutil%2Cwidgets%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.ready%2Cstartup%7Cmediawiki.rcfilters.filters.dm%2Cui%7Cmediawiki.special.changeslist.legend.js%7Cmediawiki.special.recentchanges%2Cwatchlist%7Cmediawiki.widgets.styles%7Coojs-ui-core.icons%2Cstyles%7Coojs-ui-widgets.icons%7Coojs-ui-windows.icons%7Coojs-ui.styles.icons-content%2Cicons-editing-core%2Cicons-editing-styling%2Cicons-interactions%2Cicons-layout%2Cicons-media%2Cicons-moderation%2Cindicators%7Cskins.vector.legacy.js%7Cuser.defaults&skin=vector&version=1y7vj

BadMethodCallException from line 848 of
/var/www/html/w/includes/session/SessionManager.php: Sessions are
disabled for this entry point

Backtrace:
#0 /var/www/html/w/includes/session/SessionManager.php(220):
MediaWiki\Session\SessionManager->getSessionFromInfo()
#1 /var/www/html/w/includes/WebRequest.php(826):
MediaWiki\Session\SessionManager->getSessionForRequest()
#2 /var/www/html/w/includes/user/User.php(1221): WebRequest->getSession()
#3 /var/www/html/w/includes/user/User.php(388): User->loadFromSession()
#4 /var/www/html/w/includes/user/User.php(2130): User->load()
#5 /var/www/html/w/includes/user/User.php(3069): User->getId()
#6 /var/www/html/w/includes/user/UserOptionsManager.php(584):
User->isRegistered()
#7 /var/www/html/w/includes/user/UserOptionsManager.php(487):
MediaWiki\User\UserOptionsManager->getCacheKey()
#8 /var/www/html/w/includes/user/UserOptionsManager.php(135):
MediaWiki\User\UserOptionsManager->loadUserOptions()
#9 /var/www/html/w/includes/user/User.php(2670):
MediaWiki\User\UserOptionsManager->getOption()
#10 /var/www/html/w/includes/context/RequestContext.php(416): User->getOption()
#11 /var/www/html/w/includes/context/ContextSource.php(150):
RequestContext->getSkin()
#12 /var/www/html/w/skins/Tweeki/includes/Hooks.php(52):
ContextSource->getSkin()
#13 /var/www/html/w/includes/HookContainer/HookContainer.php(321):
TweekiHooks::onParserFirstCallInit()
#14 /var/www/html/w/includes/HookContainer/HookContainer.php(132):
MediaWiki\HookContainer\HookContainer->callLegacyHook()
#15 /var/www/html/w/includes/HookContainer/HookRunner.php(2960):
MediaWiki\HookContainer\HookContainer->run()
#16 /var/www/html/w/includes/parser/Parser.php(532):
MediaWiki\HookContainer\HookRunner->onParserFirstCallInit()
#17 /var/www/html/w/includes/parser/Parser.php(477): Parser->firstCallInit()
#18 /var/www/html/w/includes/parser/ParserFactory.php(142):
Parser->__construct()
#19 /var/www/html/w/includes/ServiceWiring.php(817): ParserFactory->create()
#20 /var/www/html/w/vendor/wikimedia/services/src/ServiceContainer.php(447):
Wikimedia\Services\ServiceContainer->{closure}()
#21 /var/www/html/w/vendor/wikimedia/services/src/ServiceContainer.php(416):
Wikimedia\Services\ServiceContainer->createService()
#22 /var/www/html/w/includes/MediaWikiServices.php(1000):
Wikimedia\Services\ServiceContainer->getService()
#23 /var/www/html/w/includes/cache/MessageCache.php(1249):
MediaWiki\MediaWikiServices->getParser()
#24 /var/www/html/w/includes/cache/MessageCache.php(1276):
MessageCache->getParser()
#25 /var/www/html/w/includes/language/Message.php(1258): MessageCache->parse()
#26 /var/www/html/w/includes/language/Message.php(889): Message->parseText()
#27 /var/www/html/w/includes/language/Message.php(942): Message->toString()
#28 /var/www/html/w/includes/specialpage/ChangesListSpecialPage.php(976):
Message->parse()
#29 /var/www/html/w/includes/specialpage/ChangesListSpecialPage.php(887):
ChangesListSpecialPage::getChangeTagList()
#30 /var/www/html/w/includes/resourceloader/ResourceLoaderFileModule.php(1308):
ChangesListSpecialPage::getRcFiltersConfigVars()
#31 /var/www/html/w/includes/resourceloader/ResourceLoaderFileModule.php(347):
ResourceLoaderFileModule->getPackageFiles()
#32 /var/www/html/w/includes/resourceloader/ResourceLoaderModule.php(736):
ResourceLoaderFileModule->getScript()
#33 /var/www/html/w/includes/resourceloader/ResourceLoaderModule.php(704):
ResourceLoaderModule->buildContent()
#34 /var/www/html/w/includes/resourceloader/ResourceLoader.php(1191):
ResourceLoaderModule->getModuleContent()
#35 /var/www/html/w/includes/resourceloader/ResourceLoader.php(899):
ResourceLoader->makeModuleResponse()
#36 /var/www/html/w/load.php(51): ResourceLoader->respond()
#37 /var/www/html/w/load.php(38): wfLoadMain()
#38 {main} load.php:44:48
    <anonymous> jQuery
JQMIGRATE: Migrate is installed with logging active, version 3.1.0
load.php:188:171

On Sat, Apr 10, 2021 at 6:46 AM Jeffrey Walton <[email protected]> wrote:
>
> Hi Everyone,
>
> We migrated to MW 1.35.2 yesterday. The migration went well and
> everything seems to work as expected.
>
> Today I clicked on Watchlists and found the page load is hanging. I've
> got the three pulsating circles and some text, but the page does not
> finish loading. The text is:
>
> 17 pages are on your Watchlist (plus talk pages). Email notification
> is enabled. Changes to pages you haven't visited since the changes
> occurred are in bold, with solid markers.
>
> There are no Mediawiki errors from PHP. There is nothing in error.log.
> The access.log shows this:
>
> x.x.x.x - - [10/Apr/2021:10:37:17 +0000] "GET /wiki/Special:Watchlist
> HTTP/1.1" 200 7245
> x.x.x.x - - [10/Apr/2021:10:37:17 +0000] "GET
> /w/resources/assets/poweredby_mediawiki_132x47.png HTTP/1.1" 304 -
> x.x.x.x - - [10/Apr/2021:10:37:17 +0000] "GET
> /w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector
> HTTP/1.1" 200 11895
> x.x.x.x - - [10/Apr/2021:10:37:17 +0000] "GET
> /w/load.php?lang=en&modules=jquery%2Coojs%2Coojs-ui-core%2Coojs-ui-widgets%2Csite%7Cjquery.client%2Ccookie%2CmakeCollapsible%7Cjquery.makeCollapsible.styles%7Cmediawiki.String%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2CjqueryMsg%2Clanguage%2Cuser%2Cutil%2Cwidgets%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.ready%2Cstartup%7Cmediawiki.rcfilters.filters.dm%2Cui%7Cmediawiki.special.changeslist.legend.js%7Cmediawiki.special.recentchanges%2Cwatchlist%7Cmediawiki.widgets.styles%7Coojs-ui-core.icons%2Cstyles%7Coojs-ui-widgets.icons%7Coojs-ui-windows.icons%7Coojs-ui.styles.icons-content%2Cicons-editing-core%2Cicons-editing-styling%2Cicons-interactions%2Cicons-layout%2Cicons-media%2Cicons-moderation%2Cindicators%7Cskins.vector.legacy.js%7Cuser.defaults&skin=vector&version=1y7vj
> HTTP/1.1" 304 -
>
> Any thoughts on how to finish load the Watchlist page?

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