分布式缓存Redis Centos下单节点安装
声明: 网上关于分布式缓存Redis的学习资料很多,大家可以去网上找些资料去学习。另外 JEESZ框架面向企业的大型互联网分布式企业架构,分布式缓存是必不可少的,故这边总结了一些关于分布式缓存Redis的实战文章作为后期JEESZ分布式框架的教程,希望也可以帮助到大家,请勿吐槽。Redis官网:http://redis.io独立缓存服务器:IP:xxx.xxx.xxx.xxx安装环境:CentOS 6.6Redis 版本:redis-3.0(因为 Redis3.0 在集群和性能提升方面的特性,rc 版为正式版的候选版,请在安装时去官网选用最新版)用户:root安装目录:/usr/local/redis下面我们针对于Redis安装做下详细的记录:编译和安装所需的包:#yum install gcc tcl提醒:下载 3.0 版 Redis(当前最新版 redis-3.0.0-rc5.tar.gz,请在安装时去官网选用最新版)#cd /usr/local/src#wgethttps://github.com/antirez/redis/archive/3.0.0-rc5.tar.gz提醒:此路径可以通过官网去下载目录copy创建安装目录:#mkdir /usr/local/redis解压:#tar -zxvf 3.0.0-rc5.tar.gz#mv redis-3.0.0-rc5 redis3.0#cd redis3.0安装(使用 PREFIX 指定安装目录):#make PREFIX=/usr/local/redis install安装完成后,可以看到/usr/local/redis 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将 Redis 配置成服务:按上面的操作步骤,Redis 的启动脚本为:/usr/local/src/redis3.0/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/redis3.0/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" instart)if [ -f $PIDFILE ]thenecho "$PIDFILE exists, process is already running or crashed"elseecho "Starting Redis server..."$EXEC $CONFfi;;stop)if [ ! -f $PIDFILE ]thenecho "$PIDFILE does not exist, process is not running"elsePID=$(cat $PIDFILE)echo "Stopping ..."$CLIEXEC -p $REDISPORT shutdownwhile [ -x /proc/${PID} ]doecho "Waiting for Redis to shutdown ..."sleep 1doneecho "Redis stopped"fi;;*)echo "Please use start or stop as first argument";;esac查看以上 redis 服务脚本,关注标为橙色的几个属性,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提醒: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端口保持6379不变;(特别注意: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/redis/bin/redis-server(4)CLIEXEC=/usr/local/bin/redis-cli 改为CLIEXEC=/usr/local/redis/bin/redis-cli(5) 配置文件设置:创建 redis 配置文件目录#mkdir /usr/local/redis/conf复制 redis 配置文件/usr/local/src/redis3.0/redis.conf到/usr/local/redis/conf目录并按端口号重命名为6379.conf#cp /usr/local/src/redis3.0/redis.conf /usr/local/redis/conf/6379.conf做了以上准备后,再对 CONF 属性作如下调整:CONF="/etc/redis/${REDISPORT}.conf" 改为 CONF="/usr/local/redis/conf/${REDISPORT}.conf"(6) 更改 redis 开启的命令,以后台运行的方式执行:$EXEC $CONF&#“&”作用是将服务转到后面运行修改后的/etc/rc.d/init.d/redis 服务脚本内容为:#!/bin/sh#chkconfig: 2345 80 90## Simple Redis init.d script conceived to work on Linux systems# as it does use of the /proc filesystem.REDISPORT=6379EXEC=/usr/local/redis/bin/redis-serverCLIEXEC=/usr/local/redis/bin/redis-cliPIDFILE=/var/run/redis_${REDISPORT}.pidCONF="/usr/local/redis/conf/${REDISPORT}.conf"case "$1" instart)if [ -f $PIDFILE ]thenecho "$PIDFILE exists, process is already running or crashed"elseecho "Starting Redis server..."$EXEC $CONF&fi;;stop)if [ ! -f $PIDFILE ]thenecho "$PIDFILE does not exist, process is not running"elsePID=$(cat $PIDFILE)echo "Stopping ..."$CLIEXEC -p $REDISPORT shutdownwhile [ -x /proc/${PID} ]doecho "Waiting for Redis to shutdown ..."sleep 1doneecho "Redis stopped"fi;;*)echo "Please use start or stop as first argument";;esac以上配置操作完成后,便可将 Redis 注册成为服务:#chkconfig --add redis防火墙中打开对应的端口#vi /etc/sysconfig/iptables添加:-A INPUT -m state --state NEW -m tcp -p tcp --dport 6379 -j ACCEPT重启防火墙:#service iptables restart修改 redis 配置文件设置:#vi /usr/local/redis/conf/6379.conf修改如下配置daemonizeno改为 daemonizeyes备注:如果不改为yes,pid文件是不会生成,start、stop命令是不会生效的(依赖pid文件)pidfile /var/run/redis.pid 改为 pidfile /var/run/redis_6379.pid启动 Redis 服务#service redis start将 Redis 添加到环境变量中:#vi /etc/profile在最后添加以下内容:## Redis envexport PATH=$PATH:/usr/local/redis/bin使配置生效:#source /etc/profile当前可以直接使用 redis-cli 等 redis 命令了:#redis-cli关闭 Redis 服务#service redis stop提醒:默认情况下,Redis 开启安全认证,可以通过/usr/local/redis/conf/6379.conf 的 requirepass 指定一个验证密码愿意了解框架技术或者源码的朋友直接加求求(企鹅):2042849237
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