<?xml version="1.0"?>
<api>
  <error code="internal_api_error_DBConnectionError" info="Exception Caught: DB connection error: Connection refused (127.0.0.1:3306)" xml:space="preserve">

#0 /var/www/html/mediawiki/includes/db/LoadBalancer.php(754): DatabaseBase->reportConnectionError('Connection refu...')
#1 /var/www/html/mediawiki/includes/db/LoadBalancer.php(477): LoadBalancer->reportConnectionError()
#2 /var/www/html/mediawiki/includes/GlobalFunctions.php(3653): LoadBalancer->getConnection(0, 'api', false)
#3 /var/www/html/mediawiki/includes/api/ApiBase.php(2316): wfGetDB(-1, 'api')
#4 /var/www/html/mediawiki/includes/api/ApiQueryBase.php(419): ApiBase->getDB()
#5 /var/www/html/mediawiki/includes/api/ApiQueryBase.php(298): ApiQueryBase->getDB()
#6 /var/www/html/mediawiki/includes/api/ApiQueryBacklinks.php(267): ApiQueryBase->select('ApiQueryBacklin...')
#7 /var/www/html/mediawiki/includes/api/ApiQueryBacklinks.php(115): ApiQueryBacklinks->run(Object(ApiPageSet))
#8 /var/www/html/mediawiki/includes/api/ApiPageSet.php(177): ApiQueryBacklinks->executeGenerator(Object(ApiPageSet))
#9 /var/www/html/mediawiki/includes/api/ApiPageSet.php(133): ApiPageSet->executeInternal(false)
#10 /var/www/html/mediawiki/includes/api/ApiQuery.php(266): ApiPageSet->execute()
#11 /var/www/html/mediawiki/includes/api/ApiMain.php(913): ApiQuery->execute()
#12 /var/www/html/mediawiki/includes/api/ApiMain.php(363): ApiMain->executeAction()
#13 /var/www/html/mediawiki/includes/api/ApiMain.php(334): ApiMain->executeActionWithErrorHandling()
#14 /var/www/html/mediawiki/api.php(85): ApiMain->execute()
#15 {main}

</error>
</api>