Facebook entered into the open source era by launching two new initiative called TODO and mcrouter.
TODO
TODO stands for “talk openly, develop openly,” is an effort by Facebook and collaboration companies to consume open source software and running open source programs more efficiently.
The goal is to make open source easier for everyone. The collaborating companies are Box, Dropbox, GitHub, Google, Khan Academy, Stripe, Square, Twitter, and Walmart Labs. This initiative will help companies to consume and develop their own open source programs.
Mcrouter
What is mcrouter? Here’s the description given in a blog post:
“Mcrouter is a memcached protocol router that is used at Facebook to handle all traffic to, from, and between thousands of cache servers across dozens of clusters distributed in our data centers around the world. It is proven at massive scale — at peak, mcrouter handles close to 5 billion requests per second. Mcrouter was also proven to work as a standalone binary in an Amazon Web Services setup when Instagram used it last year before fully transitioning to Facebook's infrastructure.”
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