redis-3.2.8-Sentinel集群安装和部署

呃呃呃 来到新公司运维人手不够天天搞运维服务器，好久没更新了~，有空更新一个吧！！很基础的安装，避免踩坑

 安装环境准备：

采用的全部是本地kvm出来的centos7虚拟机

sentinel1    192.168.1.206

sentinel2    192.168.1.209

sentinel3    192.168.1.208

redis-master 192.168.1.206

redis-slave1 192.168.1.209

redis-slave2 192.168.1.208

每台机器上执行

echo 1 > /proc/sys/vm/overcommit_memory

部署redis数据节点

1、启动主节点

下载redis3.2.8安装包

cd /usr/local/src

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

cd ..

ln -s /usr/local/src/redis-3.2.8 redis

cd redis

make

make install

mkdir /data/redis/data/ -p 

配置文件

redis-6379.conf

====================

port 6379

bind 192.168.1.206

protected-mode no

daemonize yes

logfile "6379.log"

dbfilename "dump-6379.rdb"

dir "/data/redis/data/"

============================

启动主节点

redis-server redis-6379.conf 

确认是否启动

redis-cli -h 192.168.1.206 -p 6379 ping

PONG

2、启动2个从节点

配置文件 对比主节点添加了slaveof配置

cd /usr/local/redis

redis-6379.conf

========================

port 6379

bind 192.168.1.209

daemonize yes

protected-mode no

logfile "6379.log"

dbfilename "dump-6379.rdb"

dir "/data/redis/data/"

slaveof 192.168.1.206 6379

==========================

port 6379

bind 192.168.1.208

daemonize yes

protected-mode no

logfile "6379.log"

dbfilename "dump-6379.rdb"

dir "/data/redis/data/"

slaveof 192.168.1.206 6379

==================================

启动从节点

redis-server redis-6379.conf 

确认是否启动

redis-cli -h 192.168.1.209 -p 6379 ping
redis-cli -h 192.168.1.208 -p 6379 ping

确认主从关系

主库视角

redis-cli -h 192.168.1.206 -p 6379 info replication

# Replication

role:master

connected_slaves:2

slave0:ip=192.168.1.209,port=6379,state=online,offset=407,lag=1

slave1:ip=192.168.1.208,port=6379,state=online,offset=407,lag=1

master_repl_offset:407

repl_backlog_active:1

repl_backlog_size:1048576

repl_backlog_first_byte_offset:2

repl_backlog_histlen:406

从库视角

redis-cli -h 192.168.1.209 -p 6379 info replication

# Replication

role:slave

master_host:192.168.1.206

master_port:6379

master_link_status:up

master_last_io_seconds_ago:3

master_sync_in_progress:0

slave_repl_offset:1

slave_priority:100

slave_read_only:1

connected_slaves:0

master_repl_offset:0

repl_backlog_active:0

repl_backlog_size:1048576

repl_backlog_first_byte_offset:0

repl_backlog_histlen:0

部署sentinel节点  分别部署3台的sentinel节点

配置文件

redis-sentinel-26379.conf

==========================

port 26379

daemonize yes

protected-mode no  

logfile "26379.log"

dir /data/redis/data/

sentinel monitor mymaster 192.168.1.206 6379 2

sentinel down-after-milliseconds mymaster 30000

sentinel parallel-syncs mymaster 1

sentinel failover-timeout mymaster 180000

登录验证

 redis-cli -h 192.168.1.206 -p 26379

192.168.1.206:26379> sentinel ckquorum mymaster

OK 3 usable Sentinels. Quorum and failover authorization can be reached