Last modified: 2013-07-17 14:23:20 UTC
Somehow, the sites table got cleared (e.g. truncated) last night on beta lab client wikis, such as http://en.wikipedia.beta.wmflabs.org/ It caused a stack trace. (see below) the timing of this is suspiciously coincidental with the merging of Wikibase patches that touched the LangLinkHandler: https://gerrit.wikimedia.org/r/#/c/71302/ https://gerrit.wikimedia.org/r/#/c/71322/ Need to find out from hashar if some tests are being run there or what, and try to figure out what caused this to happen. 2013-07-03 22:03:41 deployment-apache32 enwiki: [ba44362a] /wiki/0.4228940863319691_Moved Exception from line 463 of /data/project/apache/common-local/php-master/extensions/Wikibase/client/includes/LangLinkHandler.php: Unable to resolve site ID 'enwiki'! #0 /data/project/apache/common-local/php-master/extensions/Wikibase/client/includes/LangLinkHandler.php(396): Wikibase\LangLinkHandler->getSiteGroup() #1 /data/project/apache/common-local/php-master/extensions/Wikibase/client/includes/LangLinkHandler.php(428): Wikibase\LangLinkHandler->getEffectiveRepoLinks(Object(Title), Object(ParserOutput)) #2 /data/project/apache/common-local/php-master/extensions/Wikibase/client/WikibaseClient.hooks.php(370): Wikibase\LangLinkHandler->addLinksFromRepository(Object(Title), Object(ParserOutput)) #3 [internal function]: Wikibase\ClientHooks::onParserAfterParse(Object(Parser), 'Starting a new ...', Object(StripState)) #4 /data/project/apache/common-local/php-master/includes/Hooks.php(199): call_user_func_array('\Wikibase\Clien...', Array) #5 /data/project/apache/common-local/php-master/includes/GlobalFunctions.php(3829): Hooks::run('ParserAfterPars...', Array) #6 /data/project/apache/common-local/php-master/includes/parser/Parser.php(387): wfRunHooks('ParserAfterPars...', Array) #7 [internal function]: Parser->parse('Starting a new ...', Object(Title), Object(ParserOptions), true, true, 57677) #8 /data/project/apache/common-local/php-master/includes/StubObject.php(79): call_user_func_array(Array, Array) #9 /data/project/apache/common-local/php-master/includes/StubObject.php(99): StubObject->_call('parse', Array) #10 /data/project/apache/common-local/php-master/includes/content/WikitextContent.php(300): StubObject->__call('parse', Array) #11 /data/project/apache/common-local/php-master/includes/content/WikitextContent.php(300): StubObject->parse('Starting a new ...', Object(Title), Object(ParserOptions), true, true, 57677) #12 /data/project/apache/common-local/php-master/includes/WikiPage.php(3426): WikitextContent->getParserOutput(Object(Title), 57677, Object(ParserOptions)) #13 /data/project/apache/common-local/php-master/includes/PoolCounter.php(222): PoolWorkArticleView->doWork() #14 /data/project/apache/common-local/php-master/includes/Article.php(708): PoolCounterWork->execute() #15 /data/project/apache/common-local/php-master/includes/actions/ViewAction.php(44): Article->view() #16 /data/project/apache/common-local/php-master/includes/Wiki.php(439): ViewAction->show() #17 /data/project/apache/common-local/php-master/includes/Wiki.php(305): MediaWiki->performAction(Object(Article), Object(Title)) #18 /data/project/apache/common-local/php-master/includes/Wiki.php(565): MediaWiki->performRequest() #19 /data/project/apache/common-local/php-master/includes/Wiki.php(458): MediaWiki->main() #20 /data/project/apache/common-local/php-master/index.php(55): MediaWiki->run() #21 /data/project/apache/common-local/w/index.php(3): require('/data/project/a...')
I was able to repopulate it there, btw.
after investigating, I figured out that the sites table never was populated for the wikipedia beta sites. Before https://gerrit.wikimedia.org/r/#/c/71302/ was merged, the code only gave a php warning about not being able to find sites. As far as I can tell, php warnings are not logged on beta. Now it gives an exception, which we should handle, but at the same time log somewhere prominently so we are aware. The beta instances are really not yet configured to get data from wikidata beta (and won't get data from the real wikidata). Thus, there was no expectation to see "external" wikidata links in the sidebar etc. on beta wikipedia anyway, and we would not have noticed the issue.
ps, note that the site_domain column looks improperly populated with just a "." I am not sure why.... stdClass Object ( [site_id] => 13 [site_global_key] => hewiki [site_type] => mediawiki [site_group] => wikipedia [site_source] => local [site_language] => he [site_protocol] => [site_domain] => . [site_data] => a:1:{s:5:"paths";a:2:{s:9:"file_path";s:36:"//he.wikipedia.beta.wmflabs.org/w/$1";s:9:"page_path";s:39:"//he.wikipedia.beta.wmflabs.org/wiki/$1";}} [site_forward] => 0 [site_config] => a:0:{} )
see https://bugzilla.wikimedia.org/50729 and https://bugzilla.wikimedia.org/50730 for the related issues.
Verified in Wikidata demo time July 17th
