How it works...

In the Getting ready section, we updated the configuration file to instruct the slave server to run on port 6380 and use a different working directory to the master server. The new line slave of 127.0.0.1 6379 we added to redis-slave.conf indicates that the server that listens on port 6380 is a slave of 127.0.0.1:6379. In addition, SLAVEOF is a command that can be executed in redis-cli to make the current Redis Server a slave of another instance on-the-fly.

The INFO command prints out the current server's information. In step 4, we used INFO REPLICATION to check whether the replication link is established. Most replication information items are self-explanatory. The master_replid is a random string generated on the master ...

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