Exploring Akka Stream's TCP Back Pressure
Some years ago, when Reactive Streams lived in utopia we got the assignment to build a high-volume message broker. A considerable amount of code of the solution we delivered back then was dedicated to prevent this broker being flooded with messages in case an endpoint became slow.
How would we have solved this problem today with the shiny new Akka Reactive Stream (experimental) implementation just within reach?
In this blog we explore Akka Streams in general and TCP Streams in particular. Moreover, we show how much easier we can solve the challenge we faced backed then using Streams.