Redis-cluster集群【第三篇】：redis主从

92.168.0.201:6380> slaveof 192.168.0.201 6379
OK

然后使用INFO查看下：
# Replication
role:slave
master_host:192.168.0.201
master_port:6379
master_link_status:up
master_last_io_seconds_ago:7
master_sync_in_progress:0
slave_repl_offset:85
slave_priority:100
slave_read_only:1
connected_slaves:0
master_repl_offset:0
repl_backlog_active:0
repl_backlog_size:1048576
repl_backlog_first_byte_offset:0
repl_backlog_histlen:0

然后在到主的上面看下：
15:38 [root@server.tianshuai.com]$ redis-cli -h 192.168.0.201 -p 6379
192.168.0.201:6379> INFO


# Replication
role:master
connected_slaves:1
slave0:ip=192.168.0.201,port=6380,state=online,offset=183,lag=1    #
master_repl_offset:183
repl_backlog_active:1
repl_backlog_size:1048576
repl_backlog_first_byte_offset:2
repl_backlog_histlen:182


从2.61 的时候！从是仅读的
192.168.0.201:6380> SET key1 2
(error) READONLY You can‘t write against a read only slave.
192.168.0.201:6380>
##现实工作场景中，写和读是1：10的吗，我们就可以，设置多1个主多个从这样，进行读写分离！