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This past Wednesday marked a milestone in the evolution of Wikimedia’s Database infrastructure: the completion of the migration of the English and German Wikipedias, as well as Wikidata, to MariaDB 5.5.
For the last several years, we’ve been operating the Facebook fork of MySQL 5.1 with most of our production environment running a build of r3753. 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.
That said, 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.
More on: Wikipedia Adopts MariaDB — Wikimedia blog
For the last several years, we’ve been operating the Facebook fork of MySQL 5.1 with most of our production environment running a build of r3753. 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.
That said, 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.
More on: Wikipedia Adopts MariaDB — Wikimedia blog
