Klitzke: Why Uber Engineering Switched from Postgres to MySQL

Evan Klitzke explainswhy Uber Engineering moved away from Postgresql. "The earlyarchitecture of Uber consisted of a monolithic backend application writtenin Python that used Postgres for data persistence. Since that time, thearchitecture of Uber has changed significantly, to a model of microservices and new dataplatforms. Specifically, in many of the cases where we previously usedPostgres, we now use Schemaless, a noveldatabase sharding layer built on top of MySQL. In this article, we'llexplore some of the drawbacks we found with Postgres and explain thedecision to build Schemaless and other backend services on top ofMySQL." (Thanks to Dimitri John Ledkov)