CentOS7单节点部署redis主从复制和sentinel

准备一台机器，系统版本为CentOS7。

部署redis

1、下载软件包

# wget http://download.redis.io/releases/redis-3.2.8.tar.gz

2、解压

# tar xvf redis-3.2.8.tar.gz -C /usr/local/
# cd /usr/local/
# ln -sv redis-3.2.8/ redis

3、编译

# yum groupinstall -y "Development Tools"
# cd redis
# make

4、为多实例redis配置启动环境

# mkdir -pv /home/redis-cluster/{9000,9001,9002}

# cp src/{redis-server,redis-sentinel} /home/redis-cluster/9000/
# cp src/{redis-server,redis-sentinel} /home/redis-cluster/9001/
# cp src/{redis-server,redis-sentinel} /home/redis-cluster/9002/

# cp redis.conf sentinel.conf /home/redis-cluster/9000/
# cp redis.conf sentinel.conf /home/redis-cluster/9001/
# cp redis.conf sentinel.conf /home/redis-cluster/9002/

5、修改配置文件

# vim /home/redis-cluster/9000/redis.conf
bind 172.60.0.170
protected-mode no
port 9000
daemonize yes
appendonly yes

# \cp /home/redis-cluster/9000/redis.conf /home/redis-cluster/9001/redis.conf
# \cp /home/redis-cluster/9000/redis.conf /home/redis-cluster/9002/redis.conf

# vim /home/redis-cluster/9001/redis.conf
port 9001
slaveof 172.60.0.170 9000

# vim /home/redis-cluster/9002/redis.conf
port 9002
slaveof 172.60.0.170 9000

6、启动三个redis实例

# cd /home/redis-cluster/9000/
# ./redis-server redis.conf

# cd ../9001/
# ./redis-server redis.conf

# cd ../9002/
# ./redis-server redis.conf

# ps -ef | grep redis
root     23565     1  0 03:29 ?        00:00:03 ./redis-server 172.60.0.170:9000
root     23569     1  0 03:29 ?        00:00:02 ./redis-server 172.60.0.170:9001
root     23575     1  0 03:29 ?        00:00:02 ./redis-server 172.60.0.170:9002

7、验证，查看主从状态

# /usr/local/redis/src/redis-cli -h 172.60.0.170 -p 9000
172.60.0.170:9000> set name keith
OK
172.60.0.170:9000> get name
"keith"
172.60.0.170:9000> info replication
# Replication
role:master
connected_slaves:2
slave0:ip=172.60.0.170,port=9001,state=online,offset=99,lag=1
slave1:ip=172.60.0.170,port=9002,state=online,offset=99,lag=0
master_repl_offset:99
repl_backlog_active:1
repl_backlog_size:1048576
repl_backlog_first_byte_offset:2
repl_backlog_histlen:98

---

部署sentinel

1、部署实例一

# cd /home/redis-cluster/9000
# vim sentinel.conf
protected-mode no
port 29000
daemonize yes
dir /home/redis-cluster/9000/logs
sentinel monitor mymaster 172.60.0.170 9000 2
# mkdir logs
# ./redis-sentinel sentinel.conf

# \cp sentinel.conf ../9001/
# \cp sentinel.conf ../9002/

2、部署实例二

# cd ../9001/
port 29001
dir "/home/redis-cluster/9001/logs"
# mkdir logs
# ./redis-sentinel sentinel.conf

3、部署实例三

# cd ../9002/
# vim sentinel.conf
port 29002
dir "/home/redis-cluster/9002/logs"
# mkdir logs
# ./redis-sentinel sentinel.conf

# ps -ef | grep redis
root     23565     1  0 03:29 ?        00:00:03 ./redis-server 172.60.0.170:9000
root     23569     1  0 03:29 ?        00:00:03 ./redis-server 172.60.0.170:9001
root     23575     1  0 03:29 ?        00:00:03 ./redis-server 172.60.0.170:9002
root     23923     1  0 03:43 ?        00:00:04 ./redis-sentinel *:29000 [sentinel]
root     23927     1  0 03:44 ?        00:00:04 ./redis-sentinel *:29001 [sentinel]
root     23965     1  0 03:44 ?        00:00:04 ./redis-sentinel *:29002 [sentinel]

4、验证

# /usr/local/redis/src/redis-cli -h 172.60.0.170 -p 29000
172.60.0.170:29000> sentinel masters
1)  1) "name"
    2) "mymaster"
    3) "ip"
    4) "172.60.0.170"
    5) "port"
    6) "9000"
    7) "runid"
    8) "3236841c634359db724f73d4833b003683efa446"
    9) "flags"
   10) "master"
   11) "link-pending-commands"
   12) "0"
   13) "link-refcount"
   14) "1"
   15) "last-ping-sent"
   16) "0"
   17) "last-ok-ping-reply"
   18) "65"
   19) "last-ping-reply"
   20) "65"
   21) "down-after-milliseconds"
   22) "30000"
   23) "info-refresh"
   24) "4288"
   25) "role-reported"
   26) "master"
   27) "role-reported-time"
   28) "2885298"
   29) "config-epoch"
   30) "0"
   31) "num-slaves"
   32) "2"
   33) "num-other-sentinels"
   34) "2"
   35) "quorum"
   36) "2"
   37) "failover-timeout"
   38) "180000"
   39) "parallel-syncs"
   40) "1"
172.60.0.170:29000> sentinel slaves mymaster
1)  1) "name"
    2) "172.60.0.170:9002"
    3) "ip"
    4) "172.60.0.170"
    5) "port"
    6) "9002"
    7) "runid"
    8) "0e741da8193158b565113ec84c6384284d11b0bd"
    9) "flags"
   10) "slave"
   11) "link-pending-commands"
   12) "0"
   13) "link-refcount"
   14) "1"
   15) "last-ping-sent"
   16) "0"
   17) "last-ok-ping-reply"
   18) "133"
   19) "last-ping-reply"
   20) "133"
   21) "down-after-milliseconds"
   22) "30000"
   23) "info-refresh"
   24) "4338"
   25) "role-reported"
   26) "slave"
   27) "role-reported-time"
   28) "2915465"
   29) "master-link-down-time"
   30) "0"
   31) "master-link-status"
   32) "ok"
   33) "master-host"
   34) "172.60.0.170"
   35) "master-port"
   36) "9000"
   37) "slave-priority"
   38) "100"
   39) "slave-repl-offset"
   40) "632552"
2)  1) "name"
    2) "172.60.0.170:9001"
    3) "ip"
    4) "172.60.0.170"
    5) "port"
    6) "9001"
    7) "runid"
    8) "4a500eedd644d89c565773d5e42faf4c2872295e"
    9) "flags"
   10) "slave"
   11) "link-pending-commands"
   12) "0"
   13) "link-refcount"
   14) "1"
   15) "last-ping-sent"
   16) "0"
   17) "last-ok-ping-reply"
   18) "133"
   19) "last-ping-reply"
   20) "133"
   21) "down-after-milliseconds"
   22) "30000"
   23) "info-refresh"
   24) "4338"
   25) "role-reported"
   26) "slave"
   27) "role-reported-time"
   28) "2915465"
   29) "master-link-down-time"
   30) "0"
   31) "master-link-status"
   32) "ok"
   33) "master-host"
   34) "172.60.0.170"
   35) "master-port"
   36) "9000"
   37) "slave-priority"
   38) "100"
   39) "slave-repl-offset"
   40) "632552"