Fundamentals of Akka - Webinar
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The document discusses Akka, a toolkit for creating highly concurrent and distributed applications using the actor model, which facilitates efficient message-driven architecture for Java and Scala. It highlights the advantages of the actor model over traditional object-oriented programming, such as simplified multi-threading, remote communication, and a scalable architecture. The presentation also includes an overview of Akka actors, messaging methods, and the challenges Akka addresses in building resilient systems.
Fundamentals of Akka - Webinar
- 1. Fundamentals Of Akka Presented By: Manjot Kaur Software Consultant Knoldus Inc. LEARN NOW
- 2. 01 Akka : Introduction 02 The Actor Model 03 Akka Actors 04 Example 05 Challenges That Akka solve. Today’s Agenda
- 3. Akka ● Akka is a toolkit for building highly concurrent, distributed, and resilient message-driven applications for Java and Scala.
- 4. ● The actor model was proposed decades ago by Carl Hewitt. ● It is a conceptual model to deal with concurrent computation. . ● Consequently, organizations building distributed systems with demanding requirements encounter challenges that cannot fully be solved with a traditional object-oriented programming (OOP) model, but that can benefit from the actor model. The Actor Model
- 7. ● Create more actors. ● Send messages to other actors . ● Designate what to do with the next message The Actor Model
- 10. Akka Actor ● There are many implementations of the Actor model : the most popular ones being Erlang/Elixir and Akka ● To get started with Akka we need to add the following dependency in build.sbt libraryDependencies += "com.typesafe.akka" % "akka-actor_2.11" % "2.4.14"
- 11. Akka Actor : Example
- 12. Akka Actor : Example ● Behavior ● Actor Reference ● State ● Mailbox ● ChildActor ● Supervision Strategy
- 13. Akka : Ask and Tell Messages are sent to an Actor through one of the following methods. ● ! means “fire-and-forget”, e.g. send a message asynchronously and return immediately. Also known as tell. ● ? sends a message asynchronously and returns a representing a possible reply. Also known as ask.
- 14. Top Level Actor Architecture
- 15. Challenges That Akka Solves ● Multi-threaded behavior without the use of low-level concurrency constructs like atomics or locks — relieving you from even thinking about memory visibility issues. ● Transparent remote communication between systems and their components — relieving you from writing and maintaining difficult networking code. ● A clustered, high-availability architecture that is elastic, scales in or out, on demand — enabling you to deliver a truly reactive system.
- 16. References ● https://doc.akka.io/docs/akka/2.5/actors.html ● https://www.brianstorti.com/the-actor-model/ ● https://bartoszsypytkowski.com/dont-ask-tell-2/
- 17. Thank You! Stay in Touch info@knoldus.com @Knolspea k www.knoldus.com +(1) 647-467-4396