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 p.smw_title as prop,o_blob AS v0,o_hash AS v1 FROM `smw_di_blob` INNER JOIN `smw_object_ids` AS p ON p_id=p.smw_id WHERE s_id='125395'
Function: SMW::getSemanticData
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 p.smw_t...', 'SMW::getSemanti...', false)
#1 /var/www/ISWiki/prod/current/lib/includes/db/Database.php(1358): DatabaseBase->query('SELECT p.smw_t...', 'SMW::getSemanti...')
#2 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/storage/SQLStore/SMW_SQLStore3_Readers.php(328): DatabaseBase->select('`smw_di_blob` I...', 'p.smw_title as ...', 's_id='125395'', 'SMW::getSemanti...', Array)
#3 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/storage/SQLStore/SMW_SQLStore3_Readers.php(135): SMWSQLStore3Readers->fetchSemanticData('125395', Object(SMWDIWikiPage), Object(SMWSQLStore3Table))
#4 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/storage/SQLStore/SMW_SQLStore3_Readers.php(178): SMWSQLStore3Readers->getSemanticDataFromTable('125395', Object(SMWDIWikiPage), Object(SMWSQLStore3Table))
#5 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/storage/SQLStore/SMW_SQLStore3.php(298): SMWSQLStore3Readers->getPropertyValues(Object(SMWDIWikiPage), Object(SMWDIProperty), NULL)
#6 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/storage/SMW_ResultArray.php(219): SMWSQLStore3->getPropertyValues(Object(SMWDIWikiPage), Object(SMWDIProperty), NULL)
#7 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/storage/SMW_ResultArray.php(110): SMWResultArray->loadContent()
#8 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/storage/SMW_ResultArray.php(139): SMWResultArray->getNextDataItem()
#9 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/storage/SMW_ResultArray.php(184): SMWResultArray->getNextDataValue()
#10 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/queryprinters/SMW_QP_List.php(214): SMWResultArray->getNextText(2, NULL)
#11 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/queryprinters/SMW_QP_List.php(135): SMWListResultPrinter->printRow(Array, 10, -1, -1, 'template', true, '', '', '', '', '{{HPNET Project...', 0, Object(SMWQueryResult), '', '')
#12 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/queryprinters/SMW_ResultPrinter.php(232): SMWListResultPrinter->getResultText(Object(SMWQueryResult), 2)
#13 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/queryprinters/SMW_ResultPrinter.php(202): SMWResultPrinter->buildResult(Object(SMWQueryResult))
#14 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/SMW_QueryProcessor.php(512): SMWResultPrinter->getResult(Object(SMWQueryResult), Array, 2)
#15 /var/www/ISWiki/prod/current/lib/extensions/SemanticMediaWiki/includes/parserhooks/SMW_Ask.php(40): SMWQueryProcessor::getResultFromQuery(Object(SMWQuery), Array, 2, 1)
#16 [internal function]: SMWAsk::render(Object(Parser), '[[Category:HPNE...', '?HPNET name', '?HPNET product ...', '?HPNET product ...', '?HPNET product ...', '?HPNET product ...', '?HPNET region', '?HPNET country', '?HPNET author', '?HPNET topic', '?HPNET topic te...', '?HPNET topic pe...', '?HPNET topic po...', 'mainlabel=', 'link=none', 'format=template', 'template=HPNET ...', 'introtemplate=H...', 'outrotemplate=Q...', 'sort=HPNET name', 'order=asc', 'limit=500', 'default=''There...')
#17 /var/www/ISWiki/prod/current/lib/includes/parser/Parser.php(3197): call_user_func_array(Array, Array)
#18 /var/www/ISWiki/prod/current/lib/includes/parser/Preprocessor_DOM.php(1043): Parser->braceSubstitution(Array, Object(PPFrame_DOM))
#19 /var/www/ISWiki/prod/current/lib/includes/parser/Parser.php(2986): PPFrame_DOM->expand(Object(PPNode_DOM), 0)
#20 /var/www/ISWiki/prod/current/lib/includes/parser/Parser.php(1099): Parser->replaceVariables('<br><br><div st...')
#21 /var/www/ISWiki/prod/current/lib/includes/parser/Parser.php(345): Parser->internalParse('<br><br><div st...')
#22 /var/www/ISWiki/prod/current/lib/includes/WikiPage.php(2914): Parser->parse('<br><br><div st...', Object(Title), Object(ParserOptions), true, true, 161049)
#23 /var/www/ISWiki/prod/current/lib/includes/PoolCounter.php(187): PoolWorkArticleView->doWork()
#24 /var/www/ISWiki/prod/current/lib/includes/Article.php(587): PoolCounterWork->execute()
#25 /var/www/ISWiki/prod/current/lib/includes/actions/ViewAction.php(40): Article->view()
#26 /var/www/ISWiki/prod/current/lib/includes/Wiki.php(484): ViewAction->show()
#27 /var/www/ISWiki/prod/current/lib/includes/Wiki.php(278): MediaWiki->performAction(Object(Article))
#28 /var/www/ISWiki/prod/current/lib/includes/Wiki.php(593): MediaWiki->performRequest()
#29 /var/www/ISWiki/prod/current/lib/includes/Wiki.php(503): MediaWiki->main()
#30 /var/www/ISWiki/prod/current/lib/index.php(58): MediaWiki->run()
#31 {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_energypedia: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_energype...')
#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}