Centos7 安装redis主从及配置哨兵模式

ip

192.168.1.111   主

192.168.1.112   从

192.168.1.113   从

安装redis

安装依赖

yum install gcc gcc-c++ -y

下载redis-4.0.11.tar.gz

cd /usr/local

wget http://download.redis.io/releases/redis-4.0.11.tar.gz

3台均按以下命令安装redis

cd /usr/local

tar -xzvf redis.tar.gz

cd redis

make MALLOC=libc

make

make install

配置redis 主从

修改master 192.168.1.111的redis.conf

daemonize yes

pidfile "/var/run/redis.pid"

port 6379

tcp-backlog 511

timeout 0

tcp-keepalive 0

loglevel notice

logfile "/usr/local/redis/redis.log"

databases 16

save 900 1

save 300 10

save 60 10000

stop-writes-on-bgsave-error yes

rdbcompression yes

rdbchecksum yes

dbfilename "dump.rdb"

dir "/usr/local/redis"

slave-serve-stale-data yes

slave-read-only yes

repl-diskless-sync no

repl-diskless-sync-delay 5

repl-disable-tcp-nodelay no

slave-priority 100

requirepass "密码"

appendonly yes

appendfilename "appendonly.aof"

appendfsync everysec

no-appendfsync-on-rewrite no

auto-aof-rewrite-percentage 100

auto-aof-rewrite-min-size 64mb

aof-load-truncated yes

lua-time-limit 5000

slowlog-log-slower-than 10000

slowlog-max-len 128

latency-monitor-threshold 0

notify-keyspace-events ""

hash-max-ziplist-entries 512

hash-max-ziplist-value 64

list-max-ziplist-entries 512

list-max-ziplist-value 64

set-max-intset-entries 512

zset-max-ziplist-entries 128

zset-max-ziplist-value 64

hll-sparse-max-bytes 3000

activerehashing yes

client-output-buffer-limit normal 0 0 0

client-output-buffer-limit slave 256mb 64mb 60

client-output-buffer-limit pubsub 32mb 8mb 60

hz 10

aof-rewrite-incremental-fsync yes

masterauth "密码"

protected-mode yes

修改slave 192.168.1.112和192.168.1.113的/usr/local/redis/redis.conf

daemonize yes

pidfile "/var/run/redis.pid"

port 6379

tcp-backlog 511

timeout 0

tcp-keepalive 0

loglevel notice

logfile "/usr/local/redis/redis.log"

databases 16

save 900 1

save 300 10

save 60 10000

stop-writes-on-bgsave-error yes

rdbcompression yes

rdbchecksum yes

dbfilename "dump.rdb"

dir "/usr/local/redis"

slave-serve-stale-data yes

slave-read-only yes

repl-diskless-sync no

repl-diskless-sync-delay 5

repl-disable-tcp-nodelay no

slave-priority 100

requirepass "密码"

appendonly yes

appendfilename "appendonly.aof"

appendfsync everysec

no-appendfsync-on-rewrite no

auto-aof-rewrite-percentage 100

auto-aof-rewrite-min-size 64mb

aof-load-truncated yes

lua-time-limit 5000

slowlog-log-slower-than 10000

slowlog-max-len 128

latency-monitor-threshold 0

notify-keyspace-events ""

hash-max-ziplist-entries 512

hash-max-ziplist-value 64

list-max-ziplist-entries 512

list-max-ziplist-value 64

set-max-intset-entries 512

zset-max-ziplist-entries 128

zset-max-ziplist-value 64

hll-sparse-max-bytes 3000

activerehashing yes

client-output-buffer-limit normal 0 0 0

client-output-buffer-limit slave 256mb 64mb 60

client-output-buffer-limit pubsub 32mb 8mb 60

hz 10

aof-rewrite-incremental-fsync yes

masterauth "密码"

protected-mode yes
slaveof 192.168.1.111 6379

依次启动redis

率先启动master redis  然后依次启动slave

/usr/local/redis/src/redis-server /usr/local/redis/redis.conf

可以在/usr/local/redis/redis.log 中 看到3台机子连接成功的信息

也可以在redis中 添加key   测试是否会同步

在192.168.1.111上执行如下命令

在slave机子上执行如下操作，会看到slave 上有和master 一样的key 名，value也一致

配置sentinel 哨兵

配置主master的/usr/local/redis/sentinel.conf

protected-mode no

sentinel deny-scripts-reconfig yes

sentinel monitor mymaster 192.168.1.111 6379 2

sentinel down-after-milliseconds mymaster 5000

sentinel failover-timeout mymaster 15000

sentinel auth-pass mymaster 密码

# Generated by CONFIG REWRITE

port 26379

dir "/usr/local/redis"

sentinel config-epoch mymaster 1

sentinel leader-epoch mymaster 1

sentinel known-slave mymaster 192.168.1.112 6379

sentinel known-slave mymaster 192.168.1.113 6379

sentinel current-epoch 1

sentinel announce-ip "192.168.1.111"

protected-mode no

sentinel myid 3750d9547cf4e99c142984032492d43908ed8790

sentinel deny-scripts-reconfig yes

sentinel monitor mymaster 192.168.1.111 6379 2

sentinel down-after-milliseconds mymaster 5000

sentinel failover-timeout mymaster 15000

sentinel auth-pass mymaster 密码

# Generated by CONFIG REWRITE

port 26379

dir "/usr/local/redis"

sentinel config-epoch mymaster 1

sentinel leader-epoch mymaster 1

sentinel known-slave mymaster 192.168.1.112 6379

sentinel known-slave mymaster 192.168.1.113 6379

sentinel current-epoch 1

sentinel announce-ip "192.168.1.111"

完成配置之后  依次启动哨兵sentinel

首先启动master  然后slave

/usr/local/redis/src/redis-sentinel /usr/local/redis/sentinel.conf &

启动完毕后可以用如下命令查看哨兵信息

redis-cli -p 26379 INFO Sentinel 

测试杀死master redis 进程

查看日志   master 重新选举192.168.1.112为新master

再次查看哨兵信息   master 已经变化

重新启动192.168.1.111的redis  查看信息

master 并没有变回去  依旧是189为master

同时redis.conf和sentinel.conf 也都发生了变化

至此 redis集群和哨兵均安装完毕