Facebook shares some secrets on making MySQL scale

Facebook’s Mark Callaghan, who spent eight years as a “principal member of the technical staff” at Oracle, explained that using open-source software lets Facebook operate with “orders of magnitude” more machines than people, which means lots of money saved on software licenses and lots of time put into working on new features (many of which, including the rather-cool Online Schema Change, are discussed in the talk).

Additionally, he said, the patch and update cycles at companies like Oracle are far slower than what Facebook can get by working on issues internally and with an open-source community. The same holds true for general support issues, which Facebook can resolve itself in hours instead of waiting days for commercial support.

(Full Story: Facebook shares some secrets on making MySQL scale)

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