Akka In Action

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Akka in Action, Second Edition

Author: Francisco Lopez-Sancho Abraham
language: en
Publisher: Simon and Schuster
Release Date: 2023-09-19
Akka solves the big problems of distributed systems, from multithreading and concurrency to scalability and failure. Learn how to use it effectively. In Akka in Action, Second Edition you will learn how to: Create basic programs with Akka Typed Work with clusters to build robust, fault-tolerant programs Use Akka with Kubernetes Build microservices with Akka Create and maintain distributed state with strong consistency guarantees Employ actor-based concurrency and parallelism Test Akka software Akka in Action, Second Edition teaches you to use Akka Typed to solve common problems of distributed systems. You’ll learn how to bring together all of Akka’s moving parts to design and implement highly scalable and maintainable software. Extensively revised by Akka contributor Francisco López-Sancho Abraham, this new edition demonstrates Akka’s complex concepts through engaging hands-on examples. Discover the power of the Actor Model, how Akka works with Kubernetes, and how to utilize Akka modules to create microservices that are reliable and fault tolerant. About the technology For large software systems, the action is in the “-ilities.” Scalability. Reliability. Maintainability. Capability. Akka, toolkit for building distributed message-driven applications, delivers on the “ilities.” And recent innovations, including Akka Typed, ensure that this amazing platform will remain the best way to build and deploy distributed Java and Scala applications for years to come. About the book Akka in Action, Second Edition is your guide to building message-centric distributed applications systems. This new edition covers all features of Akka, including Akka Typed. You’ll learn to create microservices using Akka’s powerful suite of tools, Akka Sharding, Persistence, Streams, Persistence Query, Projections, and gRPC. Practical examples taken directly from industry guide you through clustering, deploying to Kubernetes, and taking full advantage of Akka’s Actors-based approach to concurrency. What's inside Work with clusters to build robust, fault-tolerant programs Maintain distributed systems with strong consistency guarantees Utilize concurrency and parallelism Test Akka software About the reader For readers comfortable with Java and Scala. About the author Francisco Lopez Sancho-Abraham is a senior consultant at Lightbend, and a principal engineer on the Akka Team. Raymond Roestenburg, Rob Bakker, and Rob Williams are the authors of the first edition of Akka in Action. Table of Contents 1 Introducing Akka 2 Up and running 3 One actor is no actor 4 Akka test kit 5 Fault tolerance 6 Discovery and routing 7 Configuration 8 Clustering 9 Sharding and persistence 10 Streams, persistence queries, and projections 11 Akka ports 12 Real-world example: An Akka betting house 13 Clustering, part 2 14 Connecting to systems with Alpakka 15 Akka betting house, part 2 16 Akka Streams, part 2
Applied Akka Patterns

Author: Michael Nash
language: en
Publisher: "O'Reilly Media, Inc."
Release Date: 2016-12-12
When it comes to big data processing, we can no longer ignore concurrency or try to add it in after the fact. Fortunately, the solution is not a new paradigm of development, but rather an old one. With this hands-on guide, Java and Scala developers will learn how to embrace concurrent and distributed applications with the open source Akka toolkit. You’ll learn how to put the actor model and its associated patterns to immediate and practical use. Throughout the book, you’ll deal with an analogous workforce problem: how to schedule a group of people across a variety of projects while optimizing their time and skillsets. This example will help you understand how Akka uses actors, streams, and other tools to stitch your application together. Model software that reflects the real world with domain-driven design Learn principles and practices for implementing individual actors Unlock the real potential of Akka with patterns for combining multiple actors Understand the consistency tradeoffs in a distributed system Use several Akka methods for isolating and dealing with failures Explore ways to build systems that support availability and scalability Tune your Akka application for performance with JVM tools and dispatchers
Scala Reactive Programming

Build fault-tolerant, robust, and distributed applications in Scala Key Features - Understand and use the concepts of reactive programming to build distributed systems running on multiple nodes. - Learn how reactive architecture reduces complexity throughout the development process. - Get to grips with functional reactive programming and Reactive Microservices. Book Description Reactive programming is a scalable, fast way to build applications, and one that helps us write code that is concise, clear, and readable. It can be used for many purposes such as GUIs, robotics, music, and others, and is central to many concurrent systems. This book will be your guide to getting started with Reactive programming in Scala. You will begin with the fundamental concepts of Reactive programming and gradually move on to working with asynchronous data streams. You will then start building an application using Akka Actors and extend it using the Play framework. You will also learn about reactive stream specifications, event sourcing techniques, and different methods to integrate Akka Streams into the Play Framework. This book will also take you one step forward by showing you the advantages of the Lagom framework while working with reactive microservices. You will also learn to scale applications using multi-node clusters and test, secure, and deploy your microservices to the cloud. By the end of the book, you will have gained the knowledge to build robust and distributed systems with Scala and Akka. What you will learn Understand the fundamental principles of Reactive and Functional programming Develop applications utilizing features of the Akka framework Explore techniques to integrate Scala, Akka, and Play together Learn about Reactive Streams with real-time use cases Develop Reactive Web Applications with Play, Scala, Akka, and Akka Streams Develop and deploy Reactive microservices using the Lagom framework and ConductR Who this book is for This book is for Scala developers who would like to build fault-tolerant, scalable distributed systems. No knowledge of Reactive programming is required.