Book Image

Mastering Redis

By : Jeremy Nelson
Book Image

Mastering Redis

By: Jeremy Nelson

Overview of this book

Redis is the most popular, open-source, key value data structure server that provides a wide range of capabilities on which multiple platforms can be be built. Its fast and flexible data structures give your existing applications an edge in the development environment. This book is a practical guide which aims to help you deep dive into the world of Redis data structure to exploit its excellent features. We start our journey by understanding the need of Redis in brief, followed by an explanation of Advanced key management. Next, you will learn about design patterns, best practices for using Redis in DevOps environment and Docker containerization paradigm in detail. After this, you will understand the concept of scaling with Redis cluster and Redis Sentinel , followed by a through explanation of incorporating Redis with NoSQL technologies such as Elasticsearch and MongoDB. At the end of this section, you will be able to develop competent applications using these technologies. You will then explore the message queuing and task management features of Redis and will be able to implement them in your applications. Finally, you will learn how Redis can be used to build real-time data analytic dashboards, for different disparate data streams.
Table of Contents (18 chapters)
Mastering Redis
About the Author
About the Reviewers

The use of Lua in Redis

In his original 2011 blog post about the addition of server-side scripting to Redis, Salvatore Sanfilippo lists three reasons why:

  • Scripting increases the speed of Redis for some tasks by reducing the bandwidth between the server and client, that is separate calls are sent to Redis to read a value, apply some client-side computing to the value, and then add the value back to Redis

  • As most workflows in Redis tend to be I/O bound and not CPU bound, scripting provides a better balance between the two

  • Scripting allows the Redis server code base to remain fast and lean for general abstractions, while giving users the ability to add specific server-side functionalities


The entire post can be found here:

Later, server-side scripting was officially added to Redis using the Lua programming language in version 2.6. Lua is a fast and lightweight-programming language designed to be embedded into programs or added as a scripting...