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.

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Table of Contents (11 chapters)
Preface
Preface
Who this book is for
What this book covers
To get the most out of this book
Get in touch
Free Chapter
1
Developer Environment for Go
Developer Environment for Go
GOROOT
GOPATH
Package management
Structuring a project
Working with book's code
Containers
Testing in Go
Summary
2
Understanding Goroutines
Understanding Goroutines
Concurrency and parallelism
Go's runtime scheduler
Gotchas when using goroutines
Summary
3
Channels and Messages
Channels and Messages
Controlling parallelism
Channels and data communication
Types of channels
Closing channels
Multiplexing channels
Summary
4
The RESTful Web
The RESTful Web
HTTP and sessions
The REST protocol
Fundamentals of a REST server
How to make REST calls
Summary
5
Introducing Goophr
Introducing Goophr
What is Goophr?
Design overview
OpenAPI specification
Project structure
Summary
6
Goophr Concierge
Goophr Concierge
Revisiting the API definition
Document feeder – the REST API endpoint
Query handler – the REST API endpoint
Conventions
Logical flow diagrams
The Concierge source code
Summary
7
Goophr Librarian
Goophr Librarian
The standard indexing model
The inverted indexing model
Ranking
Revisiting the API definition
The document indexer – the REST API endpoint
The query resolver – the REST API endpoint
Code conventions
Librarian source code
Testing Librarian
Summary
8
Deploying Goophr
Deploying Goophr
Updating Goophr Concierge
Orchestrating with docker-compose
The Goophr source code
Running Goophr with docker-compose
Searching for keywords with Goophr
Authorization on a web server
Summary
9
Foundations of Web Scale Architecture
Foundations of Web Scale Architecture
Scaling a web application
Monolith versus microservices
Deployment options
Summary
10
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