MediaWiki internal error.
Original exception: exception 'DBQueryError' with message 'A database error has occurred. Did you forget to run maintenance/update.php after upgrading? See: https://www.mediawiki.org/wiki/Manual:Upgrading#Run_the_update_script
Query: SELECT o_id FROM `smw_fpt_redi` WHERE s_title = 'Https://dumpsarena.com/vendor/cisco/' AND s_namespace = '6' LIMIT 1
Function: SMWSql3SmwIds::getRedirectId
Error: 1927 Lost connection to backend server: connection closed by peer (server3: Generated event) (database_maxscale:4006)
' in /var/www/ISWiki/prod/current/lib/includes/db/Database.php:918
Stack trace:
#0 /var/www/ISWiki/prod/current/lib/includes/db/Database.php(885): DatabaseBase->reportQueryError('Lost connection...', 1927, 'SELECT o_id F...', 'SMWSql3SmwIds::...', false)
#1 /var/www/ISWiki/prod/current/lib/includes/db/Database.php(1358): DatabaseBase->query('SELECT o_id F...', 'SMWSql3SmwIds::...')
#2 /var/www/ISWiki/prod/current/lib/includes/db/Database.php(1445): DatabaseBase->select('smw_fpt_redi', 'o_id', Array, 'SMWSql3SmwIds::...', Array, Array)
#3 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/storage/SQLStore/SMW_Sql3SmwIds.php(344): DatabaseBase->selectRow('smw_fpt_redi', 'o_id', Array, 'SMWSql3SmwIds::...')
#4 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/storage/SQLStore/SMW_Sql3SmwIds.php(255): SMWSql3SmwIds->getRedirectId('Https://dumpsar...', 6)
#5 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/storage/SQLStore/SMW_Sql3SmwIds.php(225): SMWSql3SmwIds->getDatabaseIdAndSort('Https://dumpsar...', 6, ':smw-redi', '', '', true, false)
#6 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/storage/SQLStore/SMW_Sql3SmwIds.php(306): SMWSql3SmwIds->getSMWPageIDandSort('Https://dumpsar...', 6, ':smw-redi', '', '', true, false)
#7 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/storage/SQLStore/SMW_Sql3SmwIds.php(225): SMWSql3SmwIds->getDatabaseIdAndSort('Https://dumpsar...', 6, '', '', '', true, false)
#8 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/storage/SQLStore/SMW_Sql3SmwIds.php(327): SMWSql3SmwIds->getSMWPageIDandSort('Https://dumpsar...', 6, '', '', '', true, false)
#9 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/storage/SQLStore/SMW_DIHandler_WikiPage.php(63): SMWSql3SmwIds->getSMWPageID('Https://dumpsar...', 6, '', '')
#10 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/storage/SQLStore/SMW_SQLStore3_Readers.php(489): SMWDIHandlerWikiPage->getWhereConds(Object(SMWDIWikiPage))
#11 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/storage/SQLStore/SMW_SQLStore3_Readers.php(611): SMWSQLStore3Readers->prepareValueQuery('`smw_object_ids...', '', Object(SMWSQLStore3Table), Object(SMWDIWikiPage), 1)
#12 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/storage/SQLStore/SMW_SQLStore3.php(314): SMWSQLStore3Readers->getInProperties(Object(SMWDIWikiPage), NULL)
#13 /var/www/ISWiki/prod/current/lib/extensions/SemanticForms/includes/SF_FormLinker.php(31): SMWSQLStore3->getInProperties(Object(SMWDIWikiPage))
#14 /var/www/ISWiki/prod/current/lib/extensions/SemanticForms/includes/SF_FormLinker.php(284): SFFormLinker::getIncomingProperties(Object(Title))
#15 [internal function]: SFFormLinker::setBrokenLink(Object(DummyLinker), Object(Title), Array, 'Cisco Study Mat...', Array, NULL)
#16 /var/www/ISWiki/prod/current/lib/includes/Hooks.php(216): call_user_func_array('SFFormLinker::s...', Array)
#17 /var/www/ISWiki/prod/current/lib/includes/GlobalFunctions.php(3859): Hooks::run('LinkEnd', Array)
#18 /var/www/ISWiki/prod/current/lib/includes/Linker.php(222): wfRunHooks('LinkEnd', Array)
#19 /var/www/ISWiki/prod/current/lib/includes/parser/LinkHolderArray.php(374): Linker::link(Object(Title), 'Cisco Study Mat...', Array, Array, Array)
#20 /var/www/ISWiki/prod/current/lib/includes/parser/LinkHolderArray.php(238): LinkHolderArray->replaceInternal('<div class="Nic...')
#21 /var/www/ISWiki/prod/current/lib/includes/parser/Parser.php(4772): LinkHolderArray->replace('<div class="Nic...')
#22 /var/www/ISWiki/prod/current/lib/includes/parser/Parser.php(362): Parser->replaceLinkHolders('<div class="Nic...')
#23 /var/www/ISWiki/prod/current/lib/includes/WikiPage.php(2914): Parser->parse('<div class="Nic...', Object(Title), Object(ParserOptions), true, true, 18967)
#24 /var/www/ISWiki/prod/current/lib/includes/PoolCounter.php(187): PoolWorkArticleView->doWork()
#25 /var/www/ISWiki/prod/current/lib/includes/WikiPage.php(862): PoolCounterWork->execute()
#26 /var/www/ISWiki/prod/current/lib/includes/diff/DifferenceEngine.php(523): WikiPage->getParserOutput(Object(ParserOptions), 18967)
#27 /var/www/ISWiki/prod/current/lib/includes/diff/DifferenceEngine.php(387): DifferenceEngine->renderNewRevision()
#28 /var/www/ISWiki/prod/current/lib/includes/Article.php(682): DifferenceEngine->showDiffPage(false)
#29 /var/www/ISWiki/prod/current/lib/includes/Article.php(434): Article->showDiffPage()
#30 /var/www/ISWiki/prod/current/lib/includes/actions/ViewAction.php(40): Article->view()
#31 /var/www/ISWiki/prod/current/lib/includes/Wiki.php(484): ViewAction->show()
#32 /var/www/ISWiki/prod/current/lib/includes/Wiki.php(278): MediaWiki->performAction(Object(Article))
#33 /var/www/ISWiki/prod/current/lib/includes/Wiki.php(593): MediaWiki->performRequest()
#34 /var/www/ISWiki/prod/current/lib/includes/Wiki.php(503): MediaWiki->main()
#35 /var/www/ISWiki/prod/current/lib/index.php(58): MediaWiki->run()
#36 {main}
Exception caught inside exception handler: exception 'DBQueryError' with message 'A database error has occurred. Did you forget to run maintenance/update.php after upgrading? See: https://www.mediawiki.org/wiki/Manual:Upgrading#Run_the_update_script
Query: SELECT value,exptime FROM `objectcache` WHERE keyname = 'webmol_openmodwiki:resourceloader:filter:minify-css:7:c88e2bcd56513749bec09a7e29cb3ffa' LIMIT 1
Function: SqlBagOStuff::get
Error: 1927 Lost connection to backend server: connection closed by peer (server3: Generated event) (database_maxscale:4006)
' in /var/www/ISWiki/prod/current/lib/includes/db/Database.php:918
Stack trace:
#0 /var/www/ISWiki/prod/current/lib/includes/db/Database.php(885): DatabaseBase->reportQueryError('Lost connection...', 1927, 'SELECT value,e...', 'SqlBagOStuff::g...', false)
#1 /var/www/ISWiki/prod/current/lib/includes/db/Database.php(1358): DatabaseBase->query('SELECT value,e...', 'SqlBagOStuff::g...')
#2 /var/www/ISWiki/prod/current/lib/includes/db/Database.php(1445): DatabaseBase->select('objectcache', Array, Array, 'SqlBagOStuff::g...', Array, Array)
#3 /var/www/ISWiki/prod/current/lib/includes/objectcache/SqlBagOStuff.php(124): DatabaseBase->selectRow('objectcache', Array, Array, 'SqlBagOStuff::g...')
#4 /var/www/ISWiki/prod/current/lib/includes/resourceloader/ResourceLoader.php(149): SqlBagOStuff->get('webmol_openmodw...')
#5 /var/www/ISWiki/prod/current/lib/includes/resourceloader/ResourceLoader.php(783): ResourceLoader->filter('minify-css', 'a:lang(ar), a:l...')
#6 /var/www/ISWiki/prod/current/lib/includes/OutputPage.php(2594): ResourceLoader->makeModuleResponse(Object(ResourceLoaderContext), Array)
#7 /var/www/ISWiki/prod/current/lib/includes/OutputPage.php(3310): OutputPage->makeResourceLoaderLink(Array, 'styles')
#8 /var/www/ISWiki/prod/current/lib/includes/OutputPage.php(2407): OutputPage->buildCssLinks()
#9 /var/www/ISWiki/prod/current/lib/includes/SkinTemplate.php(465): OutputPage->headElement(Object(SkinIswiki))
#10 /var/www/ISWiki/prod/current/lib/includes/OutputPage.php(1982): SkinTemplate->outputPage()
#11 /var/www/ISWiki/prod/current/lib/includes/Exception.php(182): OutputPage->output()
#12 /var/www/ISWiki/prod/current/lib/includes/Exception.php(209): MWException->reportHTML()
#13 /var/www/ISWiki/prod/current/lib/includes/Exception.php(490): MWException->report()
#14 /var/www/ISWiki/prod/current/lib/includes/Exception.php(569): MWExceptionHandler::report(Object(DBQueryError))
#15 /var/www/ISWiki/prod/current/lib/includes/Wiki.php(506): MWExceptionHandler::handle(Object(DBQueryError))
#16 /var/www/ISWiki/prod/current/lib/index.php(58): MediaWiki->run()
#17 {main}