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June 27, 2019
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Facebook Open Sources MySQL Schema On-the-fly Tool

  • September 22, 2010
  • By Developer.com Staff

It's called the Online Schema Change for MySQL. Facebook open sourced it this week. What OSC does it allows the social networking company to update its massive MySQL database schema on-the-fly.

The Register's Cade Metz has the story.

"In the past, according Facebook MySQL guru Mark Callaghan, the company needed a good six months to roll index updates across its sea of MySQL servers. Now, it needs no more than a few days. 'This lets us make schema changes much, much faster,' Callaghan tells The Register. 'And the benefit from the changes is that database queries will be faster.'"


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