Centos 6.9 Redis 4.0.1 高可用配置

依赖包
yum install gcc gcc-c++ make cmake zlib zlib-devel readline readline-devel tkutil tk tkutil-devel tk-devel openssl openssl-devel wget ntp vim tcl -y

下载
wget http://download.redis.io/releases/redis-4.0.1.tar.gz

解压
tar -zxvf redis-4.0.1.tar.gz

拷贝到目录
mv redis-4.0.1 /usr/local/redis

cd /usr/local/redis

make && make install

创建一个redis实力
/usr/local/redis/utils
sh ./install_server.sh
6379 端口

修改默认（Master）redis IP
vi /etc/redis/6379.conf
# line 70: change to own IP or 0.0.0.0
bind 0.0.0.0

# line 377: add follows if you need
# min-slaves-to-write : if number of slave Hosts are online, Master Host accepts write requests
# min-slaves-max-lag : decision time(sec) for online if Slave Hosts return answer within specified time
min-slaves-to-write 2
min-slaves-max-lag 10

重启服务
/etc/init.d/redis_6379 restart

高可用配置（Master）redis-sentinel IP  
cp /usr/local/redis/sentinel.conf /etc/redis/redis-sentinel.conf  

# line 98: change [sentinel monitor (any name) (Master's IP) (Master's Port) (Quorum)]
# Quorum ⇒ run failover when the specified number of Sentinel servers look Master is down
sentinel monitor mymaster 172.16.19.12 6379 1

# line 73: authentication password for Master
sentinel auth-pass mymaster password

# line 82: the term Sentinel server looks Master is down (30 sec by default below)
sentinel down-after-milliseconds mymaster 30000

# line 90 number of Slaves to be changed when running failover
sentinel parallel-syncs mymaster 1

软连接redis-sentinel
cp redis-benchmark redis-cli redis-server redis-sentinel /usr/bin/

启动redis-sentinel
redis-sentinel /etc/redis/redis-sentinel.conf
redis-sentinel /etc/redis/sentinel.conf

redis-sentinel连接测试
redis-cli -p 26379
sentinel get-master-addr-by-name mymaster
sentinel master mymaster
sentinel slaves mymaster

修改默认（Slave）redis IP
vi /etc/redis/6379.conf
# line 70: change to own IP or 0.0.0.0
bind 0.0.0.0

# line 206: add Master server's IP and port
slaveof 172.16.19.12 6379

# line 213: add connection password set on Master Host
masterauth password

# line 241: verify parameter (set Slave Hosts read-only)
slave-read-only yes

重启服务
/etc/init.d/redis_6379 restart

验证主机
redis-cli info Replication

获取钥匙
redis-cli get key_on_master