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This article shows you how the Redis 4.0 master-slave replication configuration is, concise and easy to understand, absolutely can make your eyes shine, through the detailed introduction of this article I hope you can gain something.

Master: 192.168.174.201

Slave: 192.168.174.202

Install Redis on both servers,

http://blog.itpub.net/26506993/viewspace-2146826/

On the master node, edit the configuration file

[root@MySQL01 redis-4.0.2]# vim redis.conf

#Specify port

port 6379

#Configure Password

requirepass abc

#Listen to all connections from the network

# bind 127.0.0.1

On the slave node, edit the configuration file

[root@localhost redis-4.0.2]# vim redis.conf

#Configure IP and port of master node

slaveof 192.168.174.201 6379

#Configure the password used to connect to the main library

masterauth abc

#Configure Password

requirepass abc

#Listen to all connections from the network

# bind 127.0.0.1

#Specify port

port 6380

On the master node, start redis

[root@MySQL01 redis-4.0.2]# src/redis-server redis.conf

51173:C 04 Nov 07:12:09.019 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo

51173:C 04 Nov 07:12:09.019 # Redis version=4.0.2, bits=64, commit=00000000, modified=0, pid=51173, just started

51173:C 04 Nov 07:12:09.019 # Configuration loaded

On the slave node, start redis

[root@localhost redis-4.0.2]# src/redis-server /opt/redis-4.0.2/redis.conf

61391:C 04 Nov 07:14:10.695 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo

61391:C 04 Nov 07:14:10.695 # Redis version=4.0.2, bits=64, commit=00000000, modified=0, pid=61391, just started

61391:C 04 Nov 07:14:10.695 # Configuration loaded

verify that replication

Insert linked list data above the master node

[root@MySQL01 redis-4.0.2]# src/redis-cli -a abc

127.0.0.1:6379> rpush list-key item1

(integer) 1

127.0.0.1:6379> rpush list-key item2

(integer) 2

127.0.0.1:6379> rpush list-key item3

(integer) 3

127.0.0.1:6379> lrange list-key 0 -1

1) "item1"

2) "item2"

3) "item3"

view the replication status

127.0.0.1:6379> info replication

# Replication

role:master

connected_slaves:1

slave0:ip=192.168.174.202,port=6380,state=online,offset=1785,lag=0

master_replid:17cc14861639f71ed1f82ce9999f22ff337014e4

master_replid2:0000000000000000000000000000000000000000

master_repl_offset:1785

second_repl_offset:-1

repl_backlog_active:1

repl_backlog_size:1048576

repl_backlog_first_byte_offset:1

repl_backlog_histlen:1785

View linked list data from above node

[root@localhost redis-4.0.2]# src/redis-cli -h 192.168.174.202 -p 6380 -a abc

192.168.174.202:6380> lrange list-key 0 -1

1) "item1"

2) "item2"

3) "item3"

view the replication status

192.168.174.202:6380> info replication

# Replication

role:slave

master_host:192.168.174.201

master_port:6379

master_link_status:up

master_last_io_seconds_ago:6

master_sync_in_progress:0

slave_repl_offset:1771

slave_priority:100

slave_read_only:1

connected_slaves:0

master_replid:17cc14861639f71ed1f82ce9999f22ff337014e4

master_replid2:0000000000000000000000000000000000000000

master_repl_offset:1771

second_repl_offset:-1

repl_backlog_active:1

repl_backlog_size:1048576

repl_backlog_first_byte_offset:1

repl_backlog_histlen:1771

So that's what Redis 4.0 looks like with master-slave replication. Have you learned anything? If you want to learn more skills or enrich your knowledge reserves, please pay attention to the industry information channel.

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