Book Image

Akka Cookbook

By : Vivek Mishra, Héctor Veiga Ortiz
Book Image

Akka Cookbook

By: Vivek Mishra, Héctor Veiga Ortiz

Overview of this book

Akka is an open source toolkit that simplifies the construction of distributed and concurrent applications on the JVM. This book will teach you how to develop reactive applications in Scala using the Akka framework. This book will show you how to build concurrent, scalable, and reactive applications in Akka. You will see how to create high performance applications, extend applications, build microservices with Lagom, and more. We will explore Akka's actor model and show you how to incorporate concurrency into your applications. The book puts a special emphasis on performance improvement and how to make an application available for users. We also make a special mention of message routing and construction. By the end of this book, you will be able to create a high-performing Scala application using the Akka framework.
Table of Contents (18 chapters)
Title Page
About the Authors
About the Reviewer
Customer Feedback

Creating remote actors on different machines

In this recipe, we are going to see how to create remote actors on different machines. We will need to start two separate Akka applications running on different ports (mimicking as if they are running on different machines) to demonstrate how to do it.

Getting ready

Just import the Hello-Akka project; the prerequisites are the same as before. We will also need to have the Akka remoting dependency in our build.sbt file.

How to do it...

  1. Create a new file named application-1.conf in the src/main/resources directory with the following contents:
        akka {
          actor {
            provider = "akka.remote.RemoteActorRefProvider"
          remote {
            enabled-transports = ["akka.remote.netty.tcp"]
            netty.tcp {
              hostname = ""
              port = 2552
  1. Create a second new file named application-2.conf in the src/main/resources directory with the following contents...