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/redis_6380.pid 
dir ./slave 
slaveof 127.0.0.1 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 
$bin/redis-server...