lvs+keepalived配置.docx

LVS+keepalived配置作者：陈志军时间：2012/7/13/LVS集群采用IP负载均衡技术和基于内容请求分发技术。调度器具有很好的吞吐率，将请求均衡地转移到不同的服务器上执行，且调度器自动屏蔽掉服务器的故障，从而将一组服务器构成一个高性能的、高可用的虚拟服务器。整个服务器集群的结构对客户是透明的，而且无需修改客户端和服务器端的程序。为此，在设计时需要考虑系统的透明性、可伸缩性、高可用性和易管理性。软件包下载/software/kernel-2.6/ipvsadm-1.24.tar.gz/software/keepalived-1.1.17.tar.gzLVS客户端配置#!/bin/bash# description: Configrealserver lo and apply noarpSNS_VIP=15/etc/rc.d/init.d/functionscase $1 instart)ifconfig lo:0 $SNS_VIP netmask 55 broadcast $SNS_VIP /sbin/route add -host $SNS_VIP dev lo:0echo 1 /proc/sys/net/ipv4/conf/lo/arp_ignoreecho 2 /proc/sys/net/ipv4/conf/lo/arp_announceecho 1 /proc/sys/net/ipv4/conf/all/arp_ignoreecho 2 /proc/sys/net/ipv4/conf/all/arp_announcesysctl -p /dev/null 21echo RealServer Start OK ;;stop)ifconfig lo:0 downroute del $SNS_VIP /dev/null 21echo 0 /proc/sys/net/ipv4/conf/lo/arp_ignoreecho 0 /proc/sys/net/ipv4/conf/lo/arp_announceecho 0 /proc/sys/net/ipv4/conf/all/arp_ignoreecho 0 /proc/sys/net/ipv4/conf/all/arp_announceecho RealServerStoped ;;*)echo Usage: $0 {start|stop}exit 1esacexit 0服务器配置LVS安装tar -xzvf ipvsadm-1.24.tar.gz cd ipvsadm-1.24ln -s /usr/src/kernels/2.6.18-128.el5-x86_64/ /usr/src/linuxmakemake install检查安装是否成功[root@localhost ~]# lsmod | grepip_vsip_vs121217 0KEEPALIVED安装tar -xzvf keepalived-1.1.17.tar.gz cd keepalived-1.1.17./configure --prefix=/usr/local/keepalivedmake make installmkdir /etc/keepalivedcp /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/cp /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/rc.d/init.dcp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/cp /usr/local/keepalived/sbin/keepalived /sbin/修改keepalived配置文件[root@localhostkeepalived]# vikeepalived.conf! Configuration File for keepalivedglobal_defs {router_id LVS_SEE1}vrrp_instance VI_1 {state MASTERinterface eth0virtual_router_id 51priority 180advert_int 1authentication {auth_type PASSauth_pass 1111 }virtual_ipaddress { 43 dev eth0 label eth0:0 }}virtual_server 43 80 {delay_loop 6lb_a