Markus Winand's write-up at https://use-the-index-luke.com/blog/2016-07-29/on-ubers-choice-of-databases https://use-the-index-luke.com/blog/2016-07-29/on-ubers-

Markus Winand's write-up at https://use-the-index-luke.com/blog/2016-07-29/on-ubers-choice-of-databases https://use-the-index-luke.com/blog/2016-07-29/on-ubers-choi... really drives this point home. InnoDB has favorable characteristics for what they're trying to do.