HOW QUORA SCALED MYSQL TO 100K+ QUERIES PER SECOND

Summary from the TLDR Web Dev newsletter

Quora has over 300 million monthly active users with tens of thousands of questions posted per day. To serve this traffic, it makes heavy use of MySQL. Quora has a sharded configuration that stores tens of terabytes and can scale to serve hundreds of thousands of queries per second. This article goes over how Quora handles such a heavy database load using MySQL with a focus on scaling read volume, write volume, and data size.