<?xml version="1.0"?>
<api>
  <error code="internal_api_error_DBConnectionError" info="Exception Caught: DB connection error: Can&#039;t connect to local MySQL server through socket &#039;/var/run/mysqld/mysqld.sock&#039; (2) (localhost)" xml:space="preserve">

#0 /data/var/lib/mediawiki/core/includes/db/LoadBalancer.php(754): DatabaseBase->reportConnectionError('Unknown error (...')
#1 /data/var/lib/mediawiki/core/includes/db/LoadBalancer.php(477): LoadBalancer->reportConnectionError()
#2 /data/var/lib/mediawiki/core/includes/GlobalFunctions.php(3709): LoadBalancer->getConnection(-1, 'watchlist', false)
#3 /data/var/lib/mediawiki/core/includes/api/ApiQuery.php(167): wfGetDB(-1, 'watchlist')
#4 /data/var/lib/mediawiki/core/includes/api/ApiQueryBase.php(434): ApiQuery->getNamedDB('watchlist', -1, 'watchlist')
#5 /data/var/lib/mediawiki/core/includes/api/ApiQueryWatchlist.php(58): ApiQueryBase->selectNamedDB('watchlist', -1, 'watchlist')
#6 /data/var/lib/mediawiki/core/includes/api/ApiQueryWatchlist.php(40): ApiQueryWatchlist->run()
#7 /data/var/lib/mediawiki/core/includes/api/ApiQuery.php(282): ApiQueryWatchlist->execute()
#8 /data/var/lib/mediawiki/core/includes/api/ApiMain.php(913): ApiQuery->execute()
#9 /data/var/lib/mediawiki/core/includes/api/ApiMain.php(363): ApiMain->executeAction()
#10 /data/var/lib/mediawiki/core/includes/api/ApiMain.php(334): ApiMain->executeActionWithErrorHandling()
#11 /data/var/lib/mediawiki/core/api.php(85): ApiMain->execute()
#12 {main}

</error>
</api>