I am an absolute Elixir beginner migrating from php, java, c# world. I want to build a super fast api server for Forex ( ie realtime currency trading exchange) with Elixir and (Redis, Cassandra or SqlServer, MySQL ?) Database. I would evaluate the system under 10million API calls and transactions per second. Elixir / Elang as i have read in some places offers the highest concurrecy and i assume it would make the best programming language for this experiment. I want to minimize the server overhead (CPU, RAM) at any cost. Must I used Phoenix or what am I to lose without it. Thank you.
NB. Any relevant resource to study as concerns such a project is appreciated!