Book Image

Redis 4.x Cookbook

Book Image

Redis 4.x Cookbook

Overview of this book

Redis is considered the world's most popular key-value store database. Its versatility and the wide variety of use cases it enables have made it a popular choice of database for many enterprises. Based on the latest version of Redis, this book provides both step-by-step recipes and relevant the background information required to utilize its features to the fullest. It covers everything from a basic understanding of Redis data types to advanced aspects of Redis high availability, clustering, administration, and troubleshooting. This book will be your great companion to master all aspects of Redis. The book starts off by installing and configuring Redis for you to get started with ease. Moving on, all the data types and features of Redis are introduced in detail. Next, you will learn how to develop applications with Redis in Java, Python, and the Spring Boot web framework. You will also learn replication tasks, which will help you to troubleshoot replication issues. Furthermore, you will learn the steps that need to be undertaken to ensure high availability on your cluster and during production deployment. Toward the end of the book, you will learn the topmost tasks that will help you to troubleshoot your ecosystem efficiently, along with extending Redis by using different modules.
Table of Contents (21 chapters)
Title Page
Packt Upsell
Windows Environment Setup

Setting up Redis replication

In Chapter 1, Getting Started with Redis, we learned how to set up a Redis Server. A Redis Server runs in master mode by default. In this recipe, we will demonstrate how to set up a Redis slave server to replicate from the master server.

Getting ready…

You need to finish the installation of Redis Server as we described in the Downloading and installing Redis recipe in Chapter 1, Getting Started with Redis.

Prepare a configuration file for the Redis slave server. You can make a copy of redis.conf and rename it redis-slave.conf, then make the following changes:

port 6380 
pidfile /var/run/ 
dir ./slave 
slaveof 6379 

Don't forget to create /redis/slave directory if it doesn't exist:

$mkdir -p /redis/slave

How to do it...

The steps for setting up Redis replication are as follows:

  1. Start a Redis Server instance on port 6379 of localhost. You can skip this step if the server is already running. This is our master server:
$cd /redis