Setting Up a Redis Master‑Slave Cluster: Configuration and Deployment Steps

Prerequisites: three servers with IPs 192.168.20.234 (master), 192.168.20.235 (slave), and 192.168.20.236 (slave).

Step 1 – Create directories for configuration, data, and logs:

mkdir -p /usr/local/redis/conf

mkdir -p /usr/local/redis/data

mkdir -p /usr/local/redis/log

Step 2 – Edit redis.conf on the master node:

bind 0.0.0.0

daemonize yes

logfile "/usr/local/redis/log/redis.log"

dbfilename dump.rdb

appendonly yes

appendfilename "appendonly.aof"

dir /usr/local/redis/data

requirepass 123456

masterauth 123456

replica-read-only yes

Step 3 – Apply the same configuration on each slave node, adjusting only the replication target:

bind 0.0.0.0

daemonize yes

logfile "/usr/local/redis/log/redis.log"

dbfilename dump.rdb

appendonly yes

appendfilename "appendonly.aof"

dir /usr/local/redis/data

requirepass 123456

masterauth 123456

replica-read-only yes

Specify the master for each slave: slaveof 192.168.20.234 6379 Step 4 – Start the Redis server on all three machines and verify that the master node accepts read/write commands while the slaves are read‑only.