More bad new for Oracle owned MySQL, which is heading in the direction of OpenOffice. Wikimedia has completed the migration of the English and German Wikipedias, as well as Wikidata, to MariaDB 5.5.
The foundation was using a fork of MySQL developed by Facebook. Asher Feldman says, “We’ve been pleased with its performance; Facebook’s MySQL team contains some of the finest database engineers in the industry and they’ve done much to advance the open source MySQL ecosystem.”
Then why the foundation switch to MariaDB?
…MariaDB’s optimizer enhancements, the feature set of Percona’s XtraDB (many overlap with the Facebook patch, but I particularly like add-ons such as the ability to save the buffer pool LRU list, avoiding costly warmups on new servers), and of Oracle’s MySQL 5.5 provide compelling reasons to consider upgrading. Equally important, as supporters of the free culture movement, the Wikimedia Foundation strongly prefers free software projects; that includes a preference for projects without bifurcated code bases between differently licensed free and enterprise editions. We welcome and support the MariaDB Foundation as a not-for-profit steward of the free and open MySQL related database community.
Many GNU/Linux distributions have already switched from MySQL to MariaDB as the default database.