我要评论1.创建redis文件夹，创建三个redis文件
[root@192 redis]# touch redis6379.conf [root@192 redis]# touch redis6380.conf [root@192 redis]# touch redis6381.conf
2.分别在文件里配置
include ./redis.conf pidfile /var/run/redis_6379.pid port 6379 dbfilename dump6379.rdb
include ./redis.conf pidfile /var/run/redis_6380.pid port 6380 dbfilename dump6380.rdb
include ./redis.conf pidfile /var/run/redis_6381.pid port 6381 dbfilename dump6381.rdb
3.启动三台redis服务器
redis-server redis6379.conf redis-server redis6380.conf redis-server redis6381.conf
4.查看进程，看看三台服务器是否启动
[root@192 redis]# ps -ef|grep redis zhangsan 3660 1 0 16:13 ? 00:00:02 redis-server 127.0.0.1:6379 root 5153 4831 0 16:46 pts/1 00:00:00 redis-cli -p 6379 root 5629 1 0 17:06 ? 00:00:00 redis-server 127.0.0.1:6380 root 5643 1 0 17:07 ? 00:00:00 redis-server 127.0.0.1:6381 root 5660 3958 0 17:07 pts/0 00:00:00 grep --color=auto redis
info replication
打印主从复制相关信息
1. 6379
127.0.0.1:6379> info replication # replication role:master connected_slaves:0 master_replid:a4cb730c964f637bb2bb44c43b86a69fcefba026 master_replid2:0000000000000000000000000000000000000000 master_repl_offset:0 second_repl_offset:-1 repl_backlog_active:0 repl_backlog_size:1048576 repl_backlog_first_byte_offset:0 repl_backlog_histlen:0
2. 6380
127.0.0.1:6380> info replication # replication role:master connected_slaves:0 master_replid:e28531bc6bf909df026ebf2fdfdca211390c2d2f master_replid2:0000000000000000000000000000000000000000 master_repl_offset:0 second_repl_offset:-1 repl_backlog_active:0 repl_backlog_size:1048576 repl_backlog_first_byte_offset:0 repl_backlog_histlen:0
3.6381
127.0.0.1:6381> info replication # replication role:master connected_slaves:0 master_replid:32928632beb1666e37a6ccbbb71310f95154b278 master_replid2:0000000000000000000000000000000000000000 master_repl_offset:0 second_repl_offset:-1 repl_backlog_active:0 repl_backlog_size:1048576 repl_backlog_first_byte_offset:0 repl_backlog_histlen:0
4.在6380和6381上执行 ： slaveof 127.0.0.1 6379
1. 6379
127.0.0.1:6379> info replication # replication role:master connected_slaves:2 slave0:ip=127.0.0.1,port=6381,state=online,offset=56,lag=1 slave1:ip=127.0.0.1,port=6380,state=online,offset=56,lag=1 master_replid:084f099bcf0dfcf30a81d204fb69bb8f8728c5d8 master_replid2:0000000000000000000000000000000000000000 master_repl_offset:56 second_repl_offset:-1 repl_backlog_active:1 repl_backlog_size:1048576 repl_backlog_first_byte_offset:1 repl_backlog_histlen:56
2. 6380
127.0.0.1:6380> slaveof 127.0.0.1 6379 ok 127.0.0.1:6380> info replication # replication role:slave master_host:127.0.0.1 master_port:6379 master_link_status:down master_last_io_seconds_ago:-1 master_sync_in_progress:0 slave_repl_offset:1 master_link_down_since_seconds:1690103952 slave_priority:100 slave_read_only:1 connected_slaves:0 master_replid:e28531bc6bf909df026ebf2fdfdca211390c2d2f master_replid2:0000000000000000000000000000000000000000 master_repl_offset:0 second_repl_offset:-1 repl_backlog_active:0 repl_backlog_size:1048576 repl_backlog_first_byte_offset:0 repl_backlog_histlen:0
3. 6381
127.0.0.1:6381> slaveof 127.0.0.1 6379 ok 127.0.0.1:6381> info replication # replication role:slave master_host:127.0.0.1 master_port:6379 master_link_status:down master_last_io_seconds_ago:-1 master_sync_in_progress:0 slave_repl_offset:0 master_link_down_since_seconds:1690103984 slave_priority:100 slave_read_only:1 connected_slaves:0 master_replid:32928632beb1666e37a6ccbbb71310f95154b278 master_replid2:0000000000000000000000000000000000000000 master_repl_offset:0 second_repl_offset:-1 repl_backlog_active:0 repl_backlog_size:1048576 repl_backlog_first_byte_offset:0 repl_backlog_histlen:0
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