Parser cache

From Wikitech

The parser cache is currently (2011-08-31) backed by MariaDB with hot keys also residing in MediaWiki's main cache (Memcached).

The configuration is in CommonSettings.php (mediawiki-config.git) as part of a MultiWrite wgObjectCaches key.

Current configuration


Prior to 2011, the parser cache was solely memcached-based.

In 2011, we introduced the MySQL-based parser cache. See Parser cache expansion and Disk-backed object cache for details of the 2011 project.

In 2020, an additional local on-host Memcached tier was enabled for parser cache (T264604).