Master-slave concept and master-slave configuration of Redis

This article introduces the relevant knowledge of "the master-slave concept and master-slave configuration of Redis". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Master-slave concept

A master can have multiple slave, and a slave can have multiple slave. Thus, a strong multi-level server cluster architecture is formed.

Master is used to write data, and slave is used to read data. According to statistics, the read-write ratio of the website is 10:1.

Read-write separation can be achieved through master-slave configuration.

Both master and slave are an instance of redis (redis service)

Master-slave configuration master

View the ip address of the current host

Ifconfig

Modify the etc/redis/redis.conf file

Sudo vi redis.conf

Bind host IP address

Restart the redis service

Sudo service redis stop

Redis-server redis.conf

Configure from

Copy the etc/redis/redis.conf file

Sudo cp redis.conf. / slave.conf

Modify the redis/slave.conf file

Sudo vi slave.conf

Edit content

Bind host IP address

Slaveof host IP address 6379

Port 6378

Redis service

Sudo redis-server slave.conf

View master-slave relationship

Redis-cli-h host IP address info Replication

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