[kragen]

Thanks for the correction! So the more correct statement would be that Facebook scaled to 100 million users with PHP, MySQL, and Memcache, and then to a billion users with Cassandra and Haystack, and then built all the other stuff after their first billion?

[mapme]

Yeah, there’s also a lag sometimes ie. They write the paper 1-2 years after building the system. They’ve published some really interesting papers over time. If you filter by year you can see them all!

https://research.facebook.com/publications/