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Akka Concurrency Paperback – May 3, 2013
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Top Customer Reviews
I have to disagree with the negative review. After a careful reading of this book I got quite a lot out of it - how to use schedulers, error kernel pattern, introduction to logging, FSM, structuring the application with actors, dead letters, watches, strategies, supervisors.
The humor did not bother me. Neither did the example. If you are a cover-to-cover type of reader, I think this book will be beneficial to you.
The downside is that the book is riddled with bugs and errors. In fact, some of the code is straight up missing from the book. You can search online for a "fix" by danluu for the book's code (I also have an updated version of the airplane simulation source code - just google "airplane-akka drozdyuk")
The other glaring problem (not solved by the "fixed" code above either) is the use of outdated akka version. The new Akka 2.2 deprecates methods like actorFor and ActorRef.isTerminated. I have a question posted regarding this on stackoverflow, which will hopefully get a good answer (or if I figure it out I'll post it there). Just search for "How do you replace actorFor?"
I think what happened here is that the author ran out of time (or got bored) and hurried to finish the book, omitting a lot of details. It seems like the book was not proof-read (by a programmer) either. Unfortunately this is, as of today, the best akka book out there for anyone completely new to actors. Hope more akka books are on their way - it sure could use them!
The tone of the book is conversational, and while occasionally wordy the text maintains readability throughout.
There are some minor inconsistencies in the examples as presented in the text - if you follow along by keying them in yourself you'll find them - but nothing that is a show stopper. The example problem domain - building an airplane in Akka - illustrates concepts that help solidify how to use actor systems in solving real world problems.
I find the book useful. When reading it, things start to give more sense than when I was going through the akka documentation - particularly because I am spending more time on the subject.
Most Recent Customer Reviews
In short, this book is terrible.Read more