Learning Akka (Video 27)

This video tutorial introduces multi-node testing, explaining its purpose and how it can be used to test applications in a real network setting. It covers the components of the multi-node testing kit, including the test conductor, multi-node spec, and SBT multi-JVM plugin. The tutorial guides viewers through setting up a project for multi-node testing, configuring the necessary files, and implementing test cases. It concludes with running the tests and reviewing the results, providing a comprehensive understanding of multi-node testing in a JVM environment.

What is the primary goal of multi-node testing?

• To run coordinated tests on multiple actor systems across different JVMs

• To simplify the testing process by using fewer nodes

• To test a single actor system on one JVM

• To test the performance of a single node

Which component of the multi-node testing kit is responsible for coordinating nodes?

• Actor System

• SBT multi-JVM plugin

• Multi-node Spec

• Test Conductor

What is the role of the SBT multi-JVM plugin in multi-node testing?

• To simplify the actor system configuration

• To manage network connections between nodes

• To start tests in multiple JVMs, possibly on multiple machines

• To compile code for a single JVM

What is the first step in preparing a project for multi-node testing?

• Writing test cases

• Adding the SBT multi-JVM plugin to the plugins.sbt file

• Defining the actor system

• Running the tests

In multi-node testing, what is the purpose of defining a multi-node configuration?

• To set up the network environment

• To define nodes and their roles in the test

• To specify the number of tests to run

• To compile the test code

What function is used to ensure all nodes have started before proceeding with a test?

• runOn

• enterBarrier

• initiateTest

• startNode

How do you ensure that a worker instance is found on node one after being created on node two?

• By using the runOn function

• By using the test conductor

• By using the enterBarrier function

• By using the actor selection method