Book Image

Distributed Computing with Go

By : V.N. Nikhil Anurag
Book Image

Distributed Computing with Go

By: V.N. Nikhil Anurag

Overview of this book

Distributed Computing with Go gives developers with a good idea how basic Go development works the tools to fulfill the true potential of Golang development in a world of concurrent web and cloud applications. Nikhil starts out by setting up a professional Go development environment. Then you’ll learn the basic concepts and practices of Golang concurrent and parallel development. You’ll find out in the new few chapters how to balance resources and data with REST and standard web approaches while keeping concurrency in mind. Most Go applications these days will run in a data center or on the cloud, which is a condition upon which the next chapter depends. There, you’ll expand your skills considerably by writing a distributed document indexing system during the next two chapters. This system has to balance a large corpus of documents with considerable analytical demands. Another use case is the way in which a web application written in Go can be consciously redesigned to take distributed features into account. The chapter is rather interesting for Go developers who have to migrate existing Go applications to computationally and memory-intensive environments. The final chapter relates to the rather onerous task of testing parallel and distributed applications, something that is not usually taught in standard computer science curricula.
Table of Contents (11 chapters)

Project structure

As per the previous diagram, we have designed our application to consist of one instance of Goophr Concierge and three instances of Goophr Librarian. In order to keep our code manageable, we will split the source code into two main entities and a docker-compose file at the root level:

  • Concierge
  • Librarian
  • docker-compose.yaml

In Chapter 1, Developer Environment for Go, we discussed how to create and run docker images. The docker run ... works great for single images, but it might get complicated when we want to create a network of docker images that interact with one another. In order to keep the setup simple, we will make use of docker-compose ( In a nutshell, docker-compose requires a YAML (Yet Another Markup Language) file with specifics such as what to name the running docker images, what ports to run them on, and...