首先在linux安装好redis，版本如下：
[root@izm5eb28tnyvb00rm7as8wz ins-sentinel]# redis-cli -v redis-cli 4.0.8 [root@izm5eb28tnyvb00rm7as8wz ins-sentinel]# redis-server -v Redis server v=4.0.8 sha=00000000:0 malloc=jemalloc-4.0.3 bits=64 build=6878437d5ce73519
编辑三个redis.conf，master 1， slave 2， 目录如下：
[root@izm5eb28tnyvb00rm7as8wz ins-sentinel]# tree /root/data/soft/redis/ins-sentinel/ /root/data/soft/redis/ins-sentinel/ ├── 6300 │ ├── dump.rdb │ ├── logfile.log │ ├── pidfile.pid │ └── redis.conf ├── 6301 │ ├── dump.rdb │ ├── logfile.log │ ├── pidfile.pid │ └── redis.conf └── 6302 ├── dump.rdb ├── logfile.log ├── pidfile.pid └── redis.conf 3 directories, 12 files [root@izm5eb28tnyvb00rm7as8wz ins-sentinel]#
端口号分别为 6300 6301 6302
master修改：
bind 0.0.0.0 protected-mode yes port 6300 pidfile /root/data/soft/redis/ins-sentinel/6300/pidfile.pid logfile "/root/data/soft/redis/ins-sentinel/6300/logfile.log" dir /root/data/soft/redis/ins-sentinel/6300/
slave修改，同master，但多一句话：
slaveof 172.31.140.161 6300
分别启动三个实例：
redis-server /root/data/soft/redis/ins-sentinel/6300/redis.conf redis-server /root/data/soft/redis/ins-sentinel/6301/redis.conf redis-server /root/data/soft/redis/ins-sentinel/6302/redis.conf
自此一主两从搭建并启动完成，查看主从状态如下：
[root@izm5eb28tnyvb00rm7as8wz ins-sentinel]# redis-cli -h 172.31.140.161 -p 6300 info replication # Replication role:master connected_slaves:2 slave0:ip=172.31.140.161,port=6301,state=online,offset=280,lag=1 slave1:ip=172.31.140.161,port=6302,state=online,offset=280,lag=1 master_replid:02859e4cd236cbc4c3276b5e66016a871ca0010c master_replid2:0000000000000000000000000000000000000000 master_repl_offset:280 second_repl_offset:-1 repl_backlog_active:1 repl_backlog_size:1048576 repl_backlog_first_byte_offset:1 repl_backlog_histlen:280 [root@izm5eb28tnyvb00rm7as8wz ins-sentinel]# [root@izm5e6u39ae8sj3eivv3rvz data]# redis-cli -h 172.31.140.161 -p 6301 info replication # Replication role:slave master_host:172.31.140.161 master_port:6300 master_link_status:up master_last_io_seconds_ago:3 master_sync_in_progress:0 slave_repl_offset:378 slave_priority:100 slave_read_only:1 connected_slaves:0 master_replid:02859e4cd236cbc4c3276b5e66016a871ca0010c master_replid2:0000000000000000000000000000000000000000 master_repl_offset:378 second_repl_offset:-1 repl_backlog_active:1 repl_backlog_size:1048576 repl_backlog_first_byte_offset:1 repl_backlog_histlen:378 [root@izm5e6u39ae8sj3eivv3rvz data]#
验证主从同步
在主插入，在从查
[root@izm5eb28tnyvb00rm7as8wz ins-sentinel]# redis-cli -h 172.31.140.161 -p 6300 set "name" "zhangsan" OK [root@izm5eb28tnyvb00rm7as8wz ins-sentinel]# redis-cli -h 172.31.140.161 -p 6300 keys "*" 1) "name" [root@izm5e6u39ae8sj3eivv3rvz data]# redis-cli -h 172.31.140.161 -p 6301 get "name" "zhangsan" [root@izm5e6u39ae8sj3eivv3rvz data]# redis-cli -h 172.31.140.161 -p 6302 get "name" "zhangsan"
表示插主从查没问题。
下面加入哨兵，以实现高可用，主从切换。
编辑哨兵配置文件 sentinel.conf
protected-mode no daemonize yes port 16300 dir "/root/data/soft/redis/ins-sentinel/sentinel" logfile "./sentinel.log" sentinel monitor mymaster 172.31.140.161 6300 1
启动哨兵
redis-sentinel /root/data/soft/redis/ins-sentinel/sentinel/sentinel_16300.conf
查看哨兵状态
redis-cli -p 16300 info sentinel
[root@izm5eb28tnyvb00rm7as8wz ins-sentinel]# redis-cli -p 16300 info sentinel # Sentinel sentinel_masters:1 sentinel_tilt:0 sentinel_running_scripts:0 sentinel_scripts_queue_length:0 sentinel_simulate_failure_flags:0 master0:name=mymaster,status=ok,address=172.31.140.161:6300,slaves=2,sentinels=1 [root@izm5eb28tnyvb00rm7as8wz ins-sentinel]#
停接redis主节点后，再看哨兵状态，显示master节点已切换
[root@izm5eb28tnyvb00rm7as8wz ins-sentinel]# redis-cli -p 16300 info sentinel # Sentinel sentinel_masters:1 sentinel_tilt:0 sentinel_running_scripts:0 sentinel_scripts_queue_length:0 sentinel_simulate_failure_flags:0 master0:name=mymaster,status=ok,address=172.31.140.161:6302,slaves=2,sentinels=1