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参考文档
Redis 官方集群指南：
Redis 官方集群规范：
Redis 集群指南(中文翻译，紧供参考)：
Redis 集群规范(中文翻译，紧供参考)：
要让 Redis3.0 集群正常工作至少需要 3 个 Master 节点，要想实现高可用，每个 Master 节点要配备
至少 1 个 Slave 节点。根据以上特点和要求，进行如下的集群实施规划：
使用 6台服务器（物理机或虚拟机）部署 3 个 Master + 3 个 Slave；
按规划：防火墙中打开相应的端口
192.168.1.81
-A INPUT -m state --state NEW -m tcp -p tcp --dport 7111 -j ACCEPT-A INPUT -m state --state NEW -m tcp -p tcp --dport 17111 -j ACCEPT
192.168.1.82
-A INPUT -m state --state NEW -m tcp -p tcp --dport 7112 -j ACCEPT-A INPUT -m state --state NEW -m tcp -p tcp --dport 17112 -j ACCEPT
192.168.1.83
-A INPUT -m state --state NEW -m tcp -p tcp --dport 7113 -j ACCEPT-A INPUT -m state --state NEW -m tcp -p tcp --dport 17113 -j ACCEPT
192.168.1.84
-A INPUT -m state --state NEW -m tcp -p tcp --dport 7114 -j ACCEPT-A INPUT -m state --state NEW -m tcp -p tcp --dport 17114 -j ACCEPT
192.168.1.85
-A INPUT -m state --state NEW -m tcp -p tcp --dport 7115 -j ACCEPT-A INPUT -m state --state NEW -m tcp -p tcp --dport 17115 -j ACCEPT
192.168.1.86
-A INPUT -m state --state NEW -m tcp -p tcp --dport 7116 -j ACCEPT-A INPUT -m state --state NEW -m tcp -p tcp --dport 17116 -j ACCEPT
安装目录：/usr/local/redis3
用户：root
# yum install gcc tcl
下载（或上传）Redis3 最新稳定版（当前最新版 redis-3.0.3.tar.gz）
# cd /usr/local/src
# wget http://download.redis.io/releases/redis-3.0.3.tar.gz
创建安装目录：
# mkdir /usr/local/redis3
解压:
# tar -zxvf redis-3.0.3.tar.gz
# cd redis-3.0.3
安装(使用 PREFIX 指定安装目录)：
# make PREFIX=/usr/local/redis3 install
安装完成后，可以看到/usr/local/redis3 目录下有一个 bin 目录，bin 目录里就是 redis 的命令脚本：
redis-benchmark redis-check-aof redis-check-dump redis-cli redis-server
192.168.1.81
# mkdir -p /usr/local/redis3/cluster/7111# cp /usr/local/src/redis-3.0.3/redis.conf /usr/local/redis3/cluster/7111/redis-7111.conf
192.168.1.82
# mkdir -p /usr/local/redis3/cluster/7112 # cp /usr/local/src/redis-3.0.3/redis.conf /usr/local/redis3/cluster/7112/redis-7112.conf
192.168.1.83
# mkdir -p /usr/local/redis3/cluster/7113 # cp /usr/local/src/redis-3.0.3/redis.conf /usr/local/redis3/cluster/7113/redis-7113.conf
192.168.1.84
# mkdir -p /usr/local/redis3/cluster/7114 # cp /usr/local/src/redis-3.0.3/redis.conf /usr/local/redis3/cluster/7114/redis-7114.conf
192.168.1.85
# mkdir -p /usr/local/redis3/cluster/7115 # cp /usr/local/src/redis-3.0.3/redis.conf /usr/local/redis3/cluster/7115/redis-7115.conf
192.168.1.86
# mkdir -p /usr/local/redis3/cluster/7116 # cp /usr/local/src/redis-3.0.3/redis.conf /usr/local/redis3/cluster/7116/redis-7116.conf
修改配置文件中的下面选项：
6 个节点的 redis.conf 配置文件内容，注意修改下红色字体部分的内容即可，其他都相同：
192.168.1.81
vi /usr/local/redis3/cluster/7111/redis-7111.confpidfile /var/run/redis-7111.pidport 7111cluster-config-file /usr/local/redis3/cluster/7111/nodes.confdir /usr/local/redis3/cluster/7111(通过查找# REPLICATION)
192.168.1.82
vi /usr/local/redis3/cluster/7112/redis-7112.confpidfile /var/run/redis-7112.pidport 7112cluster-config-file /usr/local/redis3/cluster/7112/nodes.confdir /usr/local/redis3/cluster/7113(通过查找# REPLICATION)
192.168.1.83
vi /usr/local/redis3/cluster/7113/redis-7113.confpidfile /var/run/redis-7113.pidport 7113cluster-config-file /usr/local/redis3/cluster/7113/nodes.confdir /usr/local/redis3/cluster/7113(通过查找# REPLICATION)
192.168.1.84
vi /usr/local/redis3/cluster/7114/redis-7114.confpidfile /var/run/redis-7114.pidport 7114cluster-config-file /usr/local/redis3/cluster/7114/nodes.confdir /usr/local/redis3/cluster/7114(通过查找# REPLICATION)
192.168.1.85
vi /usr/local/redis3/cluster/7115/redis-7115.confpidfile /var/run/redis-7115.pidport 7115cluster-config-file /usr/local/redis3/cluster/7115/nodes.confdir /usr/local/redis3/cluster/7115(通过查找# REPLICATION)
192.168.1.86
vi /usr/local/redis3/cluster/7116/redis-7116.confpidfile /var/run/redis-7116.pidport 7116cluster-config-file /usr/local/redis3/cluster/7116/nodes.confdir /usr/local/redis3/cluster/7116(通过查找# REPLICATION)
包含了最少选项的集群配置文件示例如下:
port 7000 cluster-enabled yes cluster-config-file nodes.conf cluster-node-timeout 5000appendonly yes
192.168.181
# /usr/local/redis3/bin/redis-server /usr/local/redis3/cluster/7111/redis-7111.conf
192.168.1.82
# /usr/local/redis3/bin/redis-server /usr/local/redis3/cluster/7112/redis-7112.conf
192.168.1.83
# /usr/local/redis3/bin/redis-server /usr/local/redis3/cluster/7113/redis-7113.conf
192.168.1.84
# /usr/local/redis3/bin/redis-server /usr/local/redis3/cluster/7114/redis-7114.conf
192.168.1.85
# /usr/local/redis3/bin/redis-server /usr/local/redis3/cluster/7115/redis-7115.conf
192.168.1.86
# /usr/local/redis3/bin/redis-server /usr/local/redis3/cluster/7116/redis-7116.conf
启动之后用 PS 命令查看实例启动情况：
[root@edu-zk-01 cluster]# ps -ef | grep redis root 5443 1 0 22:49 ? 00:00:00 /usr/local/redis3/bin/redis-server *:7111 [cluster][root@edu-zk-02 cluster]# ps -ef | grep redis root 5421 1 0 22:49 ? 00:00:00 /usr/local/redis3/bin/redis-server *:7112 [cluster][root@edu-zk-03 cluster]# ps -ef | grep redisroot 5457 1 0 22:49 ? 00:00:00 /usr/local/redis3/bin/redis-server *:7113 [cluster][root@edu-zk-04 cluster]# ps -ef | grep redisroot 5379 1 0 22:50 ? 00:00:00 /usr/local/redis3/bin/redis-server *:7114 [cluster][root@edu-zk-05 cluster]# ps -ef | grep redisroot 5331 1 0 22:50 ? 00:00:00 /usr/local/redis3/bin/redis-server *:7115 [cluster][root@edu-zk-06 cluster]# ps -ef | grep redisroot 5687 1 0 22:50 ? 00:00:00 /usr/local/redis3/bin/redis-server *:7116 [cluster]
接下来准备创建集群
安装 ruby 和 rubygems（注意：需要 ruby 的版本在 1.8.7 以上）
# yum install ruby rubygems
检查 ruby 版本：
# ruby -v ruby 1.8.7 (2013-06-27 patchlevel 374) [x86_64-Linux]
gem 安装 redis ruby 接口：
# gem install redis Successfully installed redis-3.2.1 1 gem installedInstalling ri documentation for redis-3.2.1...Installing RDoc documentation for redis-3.2.1...
=== 执行 Redis 集群创建命令（只需要在其中一个节点上执行一次则可）
# cd /usr/local/src/redis-3.0.3/src/ # cp redis-trib.rb /usr/local/bin/redis-trib # redis-trib create --replicas 1 192.168.1.84:7114 192.168.1.85:7115 192.168.1.86:7116 192.168.1.81:7111 192.168.1.82:7112 192.168.1.83:7113
（输入 yes 并按下回车确认之后，集群就会将配置应用到各个节点，并连接起（join）各个节点，也就是让各个节点开始互相通讯）
集群简单测试 ：
(非伪集群适用，也就是每个节点物理机部署的情况下 )
按上面的操作步奏。Redis的启动脚本为: /usr/local/src/redis-3.0.3/utils/redis_init_script
将启动脚本复制到/etc/rc.d/init.d/目录 下，并命名为redis
#cp /usr/local/src/redis-3.0.3/utils/redis_init_script /etc/rc.d/init.d/redis
编辑/etc/rc.d/init.d/redis,修改相应配置，使用之能注册成为服务
# vi /etc/rc.d/init.d/redis
#!/bin/sh## Simple Redis init.d script conceived to work on Linux systems# as it does use of the /proc filesystem.REDISPORT=6379EXEC=/usr/local/bin/redis-serverCLIEXEC=/usr/local/bin/redis-cliPIDFILE=/var/run/redis_${REDISPORT}.pidCONF="/etc/redis/${REDISPORT}.conf"case "$1" in start) if [ -f $PIDFILE ] then echo "$PIDFILE exists, process is already running or crashed" else echo "Starting Redis server..." $EXEC $CONF fi ;; stop) if [ ! -f $PIDFILE ] then echo "$PIDFILE does not exist, process is not running" else PID=$(cat $PIDFILE) echo "Stopping ..." $CLIEXEC -p $REDISPORT shutdown while [ -x /proc/${PID} ] do echo "Waiting for Redis to shutdown ..." sleep 1 done echo "Redis stopped" fi ;; *) echo "Please use start or stop as first argument" ;;esac 查看以上redis服务脚本,关注为橙色的几个属性，做如下几个修改的准备
(1)、在脚本的第一行后面添加一行内容如下：
#chkconfig: 2345 80 90
（如果不添加 上面的内容，在注册服务时会提示:service redis does not support chkconfig）
(2)、REDISPORT端口修改各节点对应的端口:(注意，端口名将与下面的配置文件名有关)
(3)EXEC=/usr/local/bin/redis-server改为EXEC=/usr/local/redis3/redis-server
(4)CLIEXEC=/usr/local/bin/redis-cli改为CLIEXEC=/usr/local/redis3/bin/redis-cli
(5)配置文件设置，对conf属性作如下调整
CONF="/etc/redis/${REDISPORT}.conf"改为CONF="/usr/local/redis/cluster/${REDISPORT}/redis-${REDISPORT}.conf" (6)更改redis开启的命令,以后台运行的方式执行:
$EXEC $CONF & #"&"作用是将服务转到后面运行
修改后的/etc/rc.d/init.d/redis服务脚本内容为(注意各节点的端口不同):
修改成:
#!/bin/sh#chkconfig: 2345 80 90# Simple Redis init.d script conceived to work on Linux systems# as it does use of the /proc filesystem.REDISPORT=7111EXEC=/usr/local/redis3/bin/redis-serverCLIEXEC=/usr/local/redis3/bin/redis-cliPIDFILE=/var/run/redis-${REDISPORT}.pidCONF="/usr/local/redis3/cluster/${REDISPORT}/redis-${REDISPORT}.conf"case "$1" in start) if [ -f $PIDFILE ] then echo "$PIDFILE exists, process is already running or crashed" else echo "Starting Redis server..." $EXEC $CONF & fi ;; stop) if [ ! -f $PIDFILE ] then echo "$PIDFILE does not exist, process is not running" else PID=$(cat $PIDFILE) echo "Stopping ..." $CLIEXEC -p $REDISPORT shutdown while [ -x /proc/${PID} ] do echo "Waiting for Redis to shutdown ..." sleep 1 done echo "Redis stopped" fi ;; *) echo "Please use start or stop as first argument" ;;esac # chkconfig --add /etc/rc.d/init.d/redis# service redis startStarting Redis server...# service redis stopStopping ...Redis stopped
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