PHP Fatal error: Uncaught exception 'MWException' with message 'CACHE_ACCEL requested but no suitable object cache is present. You may want to install APC.' in /usr/local/src/MediaWiki/core/includes/objectcache/ObjectCache.php:141 Stack trace: #0 /usr/local/src/MediaWiki/core/includes/registration/ExtensionRegistry.php(65): ObjectCache::newAccelerator(Array, 0) #1 /usr/local/src/MediaWiki/core/includes/registration/ExtensionRegistry.php(58): ExtensionRegistry->__construct() #2 /usr/local/src/MediaWiki/core/includes/Setup.php(39): ExtensionRegistry::getInstance() #3 /usr/local/src/MediaWiki/core/maintenance/doMaintenance.php(98): require_once('/usr/local/src/...') #4 /usr/local/src/MediaWiki/core/maintenance/update.php(207): require_once('/usr/local/src/...') #5 {main} thrown in /usr/local/src/MediaWiki/core/includes/objectcache/ObjectCache.php on line 141
Proximate cause is Gerrit change 166705.