Setup Redis Replica in Ubuntu/Linux

Redis is a powerful in-memory database that can handle a huge volume of data at high speeds. However, as your data grows, you may find that your Redis instance is struggling to keep up. This is where Redis replication comes in.

Redis replication allows you to scale your Redis database horizontally, without downtime. By configuring a replica server, you can create a copy of your master server that automatically updates itself whenever changes are made to the master. This means you can handle more read traffic and improve your database's fault tolerance.

Setting up Redis replication is easy. First, configure your master server with a password and a unique identifier. Then, create a replica server and use the replicaof command to specify the IP address and port number of the master server. Redis will handle the rest, automatically replicating data to the replica server in real-time.

With Redis replication, you can handle more traffic and keep your database running smoothly, all without downtime. So why not give it a try and see how it can improve your Redis performance?

setup Steps:

1. Login to your Master Server

--Run

 nano /etc/redis/redis.conf 

--Uncomment ‘requirepass’ and set a password like👇

  requirepass [password] 

--restart redis

1. Login to your replica server

--Run

  nano /etc/redis/redis.conf

--Uncomment ‘replicaof’, 'masterauth' and set value like👇

  replicaof [master-server-private-ip] 6379  
  masterauth [master-requirepass]  

• restart redis

--Finally Run:

redis-cli
AUTH <master-requirepassword>
info replication

1. Verify: ss -antpl | grep redis

Done 😃 Follow me On Twitter

AL EMRAN
CTO at Besnik