Redis 3.2.3: 集群3哨兵模式

简介

Redis是一个使用ANSI C编写的开源、支持网络、基于内存、可选持久性的键值对存储数据库。从2015年6月开始，Redis的开发由Redis Labs赞助，而2013年5月至2015年6月期间，其开发由Pivotal赞助。^[1]在2013年5月之前，其开发由VMware赞助。^[2][3]根据月度排行网站DB-Engines.com的数据显示，Redis是最流行的键值对存储数据库。^[4]

前言

本篇主要介绍Redis的集群部署，采用三台机器，一主两从，三台均为哨兵。

192.168.10.6 Redis主， Redis-Sentinel

192.168.10.7 Redis从， Redis-Sentinel

192.168.10.8 Redis从， Redis-Sentinel

Redis-master（192.168.10.6上的配置）

#下载redis源码包

mkdir /data/soft/ -pv

cd /data/soft

wget http://download.redis.io/releases/redis-3.2.3.tar.gz

tar xf redis-3.2.3.tar.gz -C /usr/local/

#编译安装

cd /usr/local/

ln -sv redis-3.2.3/ redis

cd redis

yum install gcc tcl -y #安装依赖关系

cd deps/

make lua hiredis linenoise

cd ..

#make distclean all #(不用执行)

make MALLOC=libc

make test

make install

cp redis.conf redis.conf.bak

#配置文件

 cat > /usr/local/redis/redis.conf << "EOF"

 bind 0.0.0.0

 protected-mode no

 port 

 tcp-backlog 

 timeout 

 tcp-keepalive 

 daemonize yes

 supervised no

 pidfile "/var/run/redis_6379.pid"

 loglevel notice

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

 databases 

 save  

 save  

 save  

 stop-writes-on-bgsave-error yes

 rdbcompression yes

 rdbchecksum yes

 dbfilename "dump.rdb"

 dir "/usr/local/redis-3.2.3"

 masterauth ""

 slave-serve-stale-data yes

 slave-read-only yes

 repl-diskless-sync no

 repl-diskless-sync-delay 

 repl-disable-tcp-nodelay no

 slave-priority 

 requirepass ""

 appendonly no

 appendfilename "appendonly.aof"

 appendfsync everysec

 no-appendfsync-on-rewrite no

 auto-aof-rewrite-percentage 

 auto-aof-rewrite-min-size 64mb

 aof-load-truncated yes

 lua-time-limit 

 slowlog-log-slower-than 

 slowlog-max-len 

 latency-monitor-threshold 

 notify-keyspace-events ""

 hash-max-ziplist-entries 

 hash-max-ziplist-value 

 list-max-ziplist-size -

 list-compress-depth 

 set-max-intset-entries 

 zset-max-ziplist-entries 

 zset-max-ziplist-value 

 hll-sparse-max-bytes 

 activerehashing yes

 client-output-buffer-limit normal   

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

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

 hz 

 aof-rewrite-incremental-fsync yes

 EOF

redis.conf

#开机启动设置

echo "/usr/local/bin/redis-server /usr/local/redis/redis.conf" >>/etc/rc.d/rc.local

chmod +x /etc/rc.d/rc.local #必须要加执行权限, 否则不会执行

#启动服务

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

#查看状态

redis-cli -a 123456 info replication

Redis-slave（192.168.10.7，192.168.10.8上的配置）

#下载redis源码包

mkdir /data/soft/ -pv

cd /data/soft

wget http://download.redis.io/releases/redis-3.2.3.tar.gz

tar xf redis-3.2.3.tar.gz -C /usr/local/

#编译安装

cd /usr/local/

ln -sv redis-3.2.3/ redis

cd redis

yum install gcc tcl -y #安装依赖关系

cd deps/

make lua hiredis linenoise

cd ..

#make distclean all #(不用执行)

make MALLOC=libc

make test

make install

#配置文件

 cat > /usr/local/redis/redis.conf << "EOF"

 bind 0.0.0.0

 protected-mode no

 port 

 tcp-backlog 

 timeout 

 tcp-keepalive 

 daemonize yes

 supervised no

 pidfile "/var/run/redis_6379.pid"

 loglevel notice

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

 databases 

 save  

 save  

 save  

 stop-writes-on-bgsave-error yes

 rdbcompression yes

 rdbchecksum yes

 dbfilename "dump.rdb"

 dir "/usr/local/redis-3.2.3"

 masterauth ""

 slave-serve-stale-data yes

 slave-read-only yes

 repl-diskless-sync no

 repl-diskless-sync-delay 

 repl-disable-tcp-nodelay no

 slave-priority 

 requirepass ""

 appendonly no

 appendfilename "appendonly.aof"

 appendfsync everysec

 no-appendfsync-on-rewrite no

 auto-aof-rewrite-percentage 

 auto-aof-rewrite-min-size 64mb

 aof-load-truncated yes

 lua-time-limit 

 slowlog-log-slower-than 

 slowlog-max-len 

 latency-monitor-threshold 

 notify-keyspace-events ""

 hash-max-ziplist-entries 

 hash-max-ziplist-value 

 list-max-ziplist-size -

 list-compress-depth 

 set-max-intset-entries 

 zset-max-ziplist-entries 

 zset-max-ziplist-value 

 hll-sparse-max-bytes 

 activerehashing yes

 client-output-buffer-limit normal   

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

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

 hz 

 aof-rewrite-incremental-fsync yes

 slaveof 192.168.10.6 

 EOF

redis.conf

#开机启动设置

echo "/usr/local/bin/redis-server /usr/local/redis/redis.conf" >>/etc/rc.d/rc.local

chmod +x /etc/rc.d/rc.local #必须要加执行权限, 否则不会执行

#启动服务

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

#查看状态

redis-cli -a 123456 info replication

#三sentinel配置（192.168.10.6，192.168.10.7，192.168.10.8上配置）

cat > /usr/local/redis/sentinel.conf << "EOF"

daemonize yes

port 27000

sentinel monitor redis-master 192.168.10.6 6379 2

sentinel down-after-milliseconds redis-master 5000

protected-mode no

sentinel failover-timeout redis-master 900000

sentinel parallel-syncs redis-master 2

sentinel auth-pass redis-master 123456

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

EOF

#开机启动设置

echo "/usr/local/bin/redis-sentinel /usr/local/redis/sentinel.conf" >>/etc/rc.d/rc.local

chmod +x /etc/rc.d/rc.local #必须要加执行权限, 否则不会执行

#启动服务

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

#查看状态

redis-cli -a 123456 info replication

redis-cli -p 27000 -a 123456 info sentinel

#单sentinel配置， 注：在一主一从的环境中，部署一个sentinel节点的环境使用

cat > /usr/local/redis/sentinel.conf << "EOF"

daemonize yes

port 27000

sentinel monitor redis-master 192.168.10.6 6379 1

protected-mode no

sentinel down-after-milliseconds redis-master 5000

sentinel failover-timeout redis-master 60000

sentinel auth-pass redis-master 123456

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

EOF

#转移测试

redis-cli -a 123456 shutdown (主服务器上停掉redis服务, 或pkill redis-server)

redis-cli -p 27000 -a 123456 info sentinel（查看三台redis状态转换）