Chapter 9. Concurrency with Akka
Much of this book focusses on taking advantage of multicore and distributed architectures. In Chapter 4, Parallel Collections and Futures, you learned how to use parallel collections to distribute batch processing problems over several threads and how to perform asynchronous computations using futures. In Chapter 7, Web APIs, we applied this knowledge to query the GitHub API with several concurrent threads.
Concurrency abstractions such as futures and parallel collections simplify the enormous complexity of concurrent programming by limiting what you can do. Parallel collections, for instance, force you to phrase your parallelization problem as a sequence of pure functions on collections.
Actors offer a different ...