MySQL at Facebook

Facebook uses lots MySQL databases. Any information about how Facebook scales MySQL?

Some information on the Web:

MySQL at Facebook’s page

A post by Ryan Thiessen, Database Operations at Facebook on Quora:

And more:

“A lot of people are surprised that for this shiny new thing for
Facebook, we’re using MySQL,” Piantino says. “We treat [MySQL] as a
generic engine for data manipulation. We use it as a storage engine.
And it’s really efficient.”

In 2008, Piantino saw a presentation by an engineer from InnoDB — an
outfit that does storage engines for MySQL. He remembers thinking that
if he was ever trying to solve the problem of finding data on disk,
there “wasn’t a chance” he’d come up with a better way than the engine
InnoDB had built for MySQL.

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