Akka - The most important middleware you've never heard of.
medium.com
medium.com
> Akka is designed to be bulletproof. ... It’s actually very hard to write a system using Akka that isn’t fault tolerant.
That is why you use something battle tested, build from ground up concurrent platform -- Erlang/OTP, not some new fangled experimental library.
The only way Akka is interesting if you _need_ to access Java libraries and there is just no other way.