redis以及sentinel伪集群部署

• 1.编译安装
• 2.配置文件
• 3.启动验证集群
• • 1.启动集群
  • 2.验证集群
• 4.sentinel(哨兵集群)

yum groupinstall -y "Development Tools"
gcc --version
wget http://download.redis.io/releases/redis-6.2.5.tar.gz
tar -zxvf redis-6.2.5.tar.gz
cd redis-6.2.5
make MALLOC=libc && make install

# 看到bin目录下有相关服务就安装成功
ls /usr/local/bin/
redis-benchmark  redis-check-aof  redis-check-rdb  redis-cli  redis-sentinel  redis-server

cp /etc/redis.conf /etc/redis-{6380..6382}.conf

下面的内容有着修改,无则添加:
1.端口
		port 6379
		port 6380
		port 6381
		port 6382
2. daemonlize
		daemonlize true
		daemonlize true
		daemonlize true
		daemonlize true
3. pid file (如果以daemon的方式运行redis，那么我们就为其需要指定一个pid文件)
		pidfile /var/run/redis_6379.pid
		pidfile /var/run/redis_6380.pid
		pidfile /var/run/redis_6381.pid
		pidfile /var/run/redis_6382.pid
4. log文件
		logfile "/var/log/redis-6379"
		logfile "/var/log/redis-6380"
		logfile "/var/log/redis-6381"
		logfile "/var/log/redis-6382"
5. rdb文件
		dump6379.rdb
		dump6380.rdb
		dump6381.rdb
		dump6382.rdb
6. 如果需要外部访问,则关闭保护模式和设置密码
		protected-mode no
		masterauth 123
		
		protected-mode no
		masterauth 123
		
		protected-mode no
		masterauth 123
		
		protected-mode no
		masterauth 123
7.从节点绑定主节点(6380,6381,6382三个节点)
		主节点不操作
		replicaof 127.0.0.1 6379
		replicaof 127.0.0.1 6379
		replicaof 127.0.0.1 6379

redis-server /etc/redis.conf
redis-server /etc/redis-6380.conf
redis-server /etc/redis-6381.conf
redis-server /etc/redis-6382.conf

1.验证各节点进程:
ps -ef | grep redis | grep -v grep | wc -l
4

2.验证各节点的主从状态:
# 主节点
redis-cli -h localhost -p 6379 -a 123
127.0.0.1:6379> info replication
...
role:master	// 该节点的角色是master
connected_slaves:3 // 3个slave节点,以及slaves的信息
slave0:ip=127.0.0.1,port=6380,state=online,offset=224,lag=1
slave1:ip=127.0.0.1,port=6381,state=online,offset=224,lag=0
slave2:ip=127.0.0.1,port=6382,state=online,offset=224,lag=1
...

# 从节点:
redis-cli -h localhost -p 6380 -a 123
localhost:6380> info replication
...
role:slave
master_host:127.0.0.1
master_port:6379
...

touch /etc/sentinel-263{79,80,90}.conf
其他三个文件对应的更改即可!

vim /etc/sentonel-26379.conf
port 26380
daemonize yes
logfile "/var/log/redis/sentinel-26380.log"
# 工作目录
dir /opt/redis_sentinel_dir/sentinel-1/
# 指定master,参数分别:自定义集群名字;ip;port;最低当选master的票数
sentinel monitor mymaster 127.0.0.1 6379 2
# 验证
sentinel auth-pass mymaster 
# 超时时间(ms)
sentinel down-after-milliseconds mymaster 30000
# 故障转移超时时间(ms)
sentinel failover-timeout mymaster 180000