Construction of redis master-slave architecture

1： First, introduce the environment

Two alicloud servers ： Master(34) Alibaba cloud Slave(226) Alibaba cloud
operating system ：CentOS 7.9 64 position
Redis edition ：6.2.6
signal communication ： Adopt Intranet IP

2： Installation per server Redis

I wrote an article about installation before Redis Tutorials available

3：Slave Construction of nodes

(1)： Open profile

cd /usr/local/redis-6.2.6/
vim redis.conf

2：slave Node settings for

replicaof masterip Address   port 
masterauth master password 
replica-read-only yes

3： restart master, Start up slave node . complete

Master Node restart

Slave Node restart

4： test

master newly added key ,slave See if it exists The result is , success ！
slave newly added key Whether to allow . Result not allowed , success ！

5：java Application testing

Source code

test result

(1)： When master Hang up , Write operation error ,slave Also keep reading function

(2)：slave Hang up ,master Normal write operation , An error will be reported when reading . But at intervals 60 Apply cut-off after seconds slave Connect , from master Perform read operations . Resume normal reading and writing

(3)： When slave When reconnecting , Application direct Restore the master-slave architecture