Opening Old Wounds - Why Uber Engineering Switched from Postgres to MySQL
An article from 2016 which caused lots of discussions in the software engineering community. We bring it back and open old wounds and discuss it again. 0:00 Intro 3:00 Problems with Architecture of Postgres 4:00 Postgres on-Disk Format 9:45 Replication 13:19 Write Amplification 16:44 Replication Bandwidth 21:16 Data Corruption 24:00 Replica MVCC 31:30 Postgres Upgrades 33:00 MySQL on-Disk Format 37:00 MySQL Replication 40:00 Connection Handling https://eng.uber.com/postgres-to-mysql-migration/ https://news.ycombinator.com/item?id=12166585