<?xml version="1.0"?>
<api>
  <error code="internal_api_error_DBConnectionError" info="Exception Caught: DB connection error: Too many connections (localhost)" xml:space="preserve">

#0 /usr/share/mediawiki/includes/db/LoadBalancer.php(734): DatabaseBase->reportConnectionError('Unknown error (...')
#1 /usr/share/mediawiki/includes/db/LoadBalancer.php(494): LoadBalancer->reportConnectionError(Object(DatabaseMysql))
#2 /usr/share/mediawiki/includes/GlobalFunctions.php(3490): LoadBalancer->getConnection(-1, Array, false)
#3 /usr/share/mediawiki/includes/ChangeTags.php(248): wfGetDB(-1)
#4 /usr/share/mediawiki/includes/api/ApiFeedContributions.php(164): ChangeTags::listDefinedTags()
#5 /usr/share/mediawiki/includes/api/ApiBase.php(549): ApiFeedContributions->getAllowedParams()
#6 /usr/share/mediawiki/includes/api/ApiBase.php(600): ApiBase->getFinalParams()
#7 /usr/share/mediawiki/includes/api/ApiMain.php(594): ApiBase->extractRequestParams()
#8 /usr/share/mediawiki/includes/api/ApiMain.php(697): ApiMain->setupModule()
#9 /usr/share/mediawiki/includes/api/ApiMain.php(360): ApiMain->executeAction()
#10 /usr/share/mediawiki/includes/api/ApiMain.php(344): ApiMain->executeActionWithErrorHandling()
#11 /usr/share/mediawiki/api.php(117): ApiMain->execute()
#12 {main}

</error>
</api>