LVS+Keepalived负载均衡实施计划方案

LVS+Keepalive负载均衡实施方案目录TOC\o"1-5"\h\z\o"CurrentDocument"第一章文档简介 3\o"CurrentDocument"第二章软件环境 3\o"CurrentDocument"第三章系统基本配置 4\o"CurrentDocument"LVS、Keepalived依赖库安装 4\o"CurrentDocument"IP规划 4\o"CurrentDocument"第四章LVS安装配置 5\o"CurrentDocument"安装 5第五章Keepalived安装配置 6\o"CurrentDocument"安装 6\o"CurrentDocument"将keepalived配置成系统服务 6\o"CurrentDocument"修改主keepalived配置文件 6\o"CurrentDocument"修改备keepalived配置文件 6\o"CurrentDocument"配置主备机LVSrealserver脚本 6\o"CurrentDocument"第七章测试 7\o"CurrentDocument"安装Apache 7\o"CurrentDocument"启动Keepalived 7\o"CurrentDocument"执行lvs_realserver.sh 7\o"CurrentDocument"分别访问主备机realserver 7\o"CurrentDocument"通过虚拟IP访问 8\o"CurrentDocument"切换测试 8\o"CurrentDocument"相关命令 8第一章文档简介LVS是运行在Linux平台上的一款开源软件，主要功能是实现Linux平台的负载均衡。这款软件在业界有着很高的知名度，同时在国互联网公司有着很高的使用率，适合用于构建大型系统的负载均衡平台。Keepalived是运行在LVS上面的双机管理软件，LVS配合Keepalived使用可以构建热备双机结构，实现主备机的切换。通过本文档指导，可以架设一套LVS+keepalived结构的负载均衡双机热备系统。第二章软件环境软件版本centos6.6LVS1.26keepalived1.2.7第三章系统基本配置LVS>Keepalived依赖库安装LVS、Keepalived安装需要一些软件包的支持，在两台LVS服务器上安装下列库yum-yinstallgccgcc-c++makepcrepcre-develkernel-developenssl-devellibnl-develpopt-develpopt*IP规划LVS_MASTER39LVS_BACKUP40LVS_VIP01WEB_realserver139（这里是测试方便，正常情况应该和LVS_MASTER区分开）WEB_realserver240（同上）配置路由转发（LVS主备机上）echo"1">/proc/sys/net/ipv4/ipforward创建Keepalived安装目录mkdir-p/usr/local/frontserver/keepalived第四章LVS安装配置安装分别在LVS_MASTER和LVS_BACKUP上安装LVS,获取软件源wget./software/kernel-20ipvsadm-1.26.tar.gz建立核的软连接，否则LVS安装编译会失败ln-s/usr/src/kernels/2.6.32-504.23.4.el6.x86_64//usr/src/linux（注意：如果/usr/src/kernels/T没有核，运行yum-yinstallkernel-deve）安装tarzxvfipvsadm-1.26.tar.gzcdipvsadm-1.26make&&makeinstall第五章Keepalived安装配置安装wget./software/keepalived-1.2.7.tar.gztarzxvfkeepalived-1.2.7.tar.gzcdkeepalived-1.2.7./configure--prefix=/usr/local/frontserver/keepalivedmake&&makeinstall将keepalived配置成系统服务cp/usr/local/frontserver/keepalived/etc/rc.d/init.d/keepalived/etc/init.d/cp/usr/local/frontserver/keepalived/etc/sysconfig/keepalived/etc/sysconfig/mkdir-p/etc/keepalived/cp/usr/local/frontserver/keepalived/etc/keepalived/keepalived.conf/etc/keepalived/cp/usr/local/frontserver/keepalived/sbin/keepalived/usr/sbin/修改主keepalived配置文件vi/etc/keepalived/keepalived.conf修改备keepalived配置文件vi/etc/keepalived/keepalived.conf配置主备机LVSrealserver脚本vi~/lvs_realserver.sh第七章测试安装Apache分别在两台realserver上安装Apacheyum-yinstallhttpdcd/var//html/viindex.html<h1>WEB1/39</h1>启动/etc/init.d/httpdstart启动Keepalivedservicekeepalivedstart执行lvs_realserver.shsh~/lvsrealserver.shstart分别访问主备机realserverIODhttp://192,16B.1E4,132 +WEB1/39通过虚拟IP访