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Robert Johnson,
a director of engineering at Facebook, celebrated Facebook's monumental achievement of reaching 500 million users by sharing the
scaling principles that helped reach that milestone. In case you weren't suitably impressed by the 500 million user number, Robert ratchets up the numbers game with these impressive figures:
- 1 million users per engineer
- 500 million active users
- 100 billion hits per day
- 50 billion photos
- 2 trillion objects cached, with hundreds of millions of requests per second
- 130TB of logs every day
How did Facebook get to this point?
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