This just came up on my feed yesterday, might be interesting to you as well - post by a analytics company on moving parts of their system from MySQL-backed Rub

This just came up on my feed yesterday, might be interesting to you as well - post by a analytics company on moving parts of their system from MySQL-backed Ruby to a DB-free Elixir backed structure: https://moz.com/devblog/moz-analytics-db-free/ https://moz.com/devblog/moz-analytics-db-free/