负载均衡服务器脚本配置(1)

文章摘要：负载均衡服务器的配置过程，首先了解各个设备的IP分配具体内容，之后是apache，resin的配置代码展示。希望大家能从中学到配置方法和思路。

接触负载均衡这个领域已经有一段时间了，但是对于linux下的负载均衡服务器的设置问题总是掌握的不得要领。那么现在，特意找来了一篇资料，跟大家一起分享。共同看看具体的配置过程是如何的。那么，具体的内容，我们一起来看文章吧。

两台resin 服务器和两台apache服务器?一台负载均衡服务器,一共5台server。

两台apache服务器ip地址：

apache1 ip:192.168.9.101

apache2 ip:192.168.9.110

两台resin 服务器ip地址：

resin1 ip:192.168.9.145

resin2 ip:192.168.9.146

一台负载均衡服务器ip地址：

vip1:192.168.9.106 提供两台apache负载均衡的虚拟ip地址

vip2:192.168.9.150 提供两台resin负载均衡的虚拟ip地址

负载均衡服务器 ip地址192.168.9.109

apache1 lvs相关配置如下:

建一个shell脚本vi /usr/local/lvs/real.sh

#!/bin/bash

# set the Virtual IP Address

/sbin/ifconfig lo:0 192.168.9.106 broadcast 192.168.9.106 netmask 255.255.255.255 up

/sbin/route add -host 192.168.9.106 dev lo:0

#off ARP

echo "1" > /proc/sys/net/ipv4/conf/lo/arp_ignore

echo "2" > /proc/sys/net/ipv4/conf/lo/arp_announce

echo "1" > /proc/sys/net/ipv4/conf/all/arp_ignore

echo "2" > /proc/sys/net/ipv4/conf/all/arp_announce

# run

sysctl -p

#end

保存退出

 

将此脚本添加自启动文件

[root@web1 ~]# cat /etc/rc.local

#!/bin/sh

#

# This script will be executed *after* all the other init scripts.

# You can put your own initialization stuff in here if you don't

# want to do the full Sys V style init stuff.

/usr/local/lvs/real.sh

touch /var/lock/subsys/local

apache2服务器lvs配置和apache1相同

resin1服务器lvs配置如下

建一个shell脚本 vi /usr/local/realserver/real.sh

#!/bin/bash

# set the Virtual IP Address

/sbin/ifconfig lo:0 192.168.9.150 broadcast 192.168.9.150 netmask 255.255.255.255 up

/sbin/route add -host 192.168.9.150 dev lo:0

#off ARP

echo "1" > /proc/sys/net/ipv4/conf/lo/arp_ignore

echo "2" > /proc/sys/net/ipv4/conf/lo/arp_announce

echo "1" > /proc/sys/net/ipv4/conf/all/arp_ignore

echo "2" > /proc/sys/net/ipv4/conf/all/arp_announce

# run

sysctl -p

#end

 

  　将此脚本添加自启动文件

[root@resin1 ~]# cat /etc/rc.local

#!/bin/sh

#

# This script will be executed *after* all the other init scripts.

# You can put your own initialization stuff in here if you don't

# want to do the full Sys V style init stuff.

/usr/local/realserver/real.sh

touch /var/lock/subsys/local

resin2服务器lvs配置和resin1相同

负载均衡服务器配置

安装libnet ?ipvsadm?ldirectord软件

yum install libnet

yum install ipvsadm

yum install ldirectord*

新建/usr/local/lvsdr/lvs.sh脚本

vi /usr/local/lvsdr/lvs.sh

VIP1=192.168.9.106

VIP2=192.168.9.150

RIP1=192.168.9.101

RIP2=192.168.9.110

RIP3=192.168.9.145

RIP4=192.168.9.146

GW=192.168.9.2

#set the vritual IP Address

/sbin/ifconfig eth0:0 $VIP1 broadcast $VIP1 netmask 255.255.255.255 up

/sbin/route add -host $VIP1 dev eth0:0

/sbin/ifconfig eth0:1 $VIP2 broadcast $VIP2 netmask 255.255.255.255 up

/sbin/route add -host $VIP2 dev eth0:1

#clear IPVS table

/sbin/ipvsadm -C

#Set LVS

/sbin/ipvsadm -A -t $VIP1:80 -s rr

/sbin/ipvsadm -a -t $VIP1:80 -r $RIP1:80 -g

/sbin/ipvsadm -a -t $VIP1:80 -r $RIP2:80 -g

/sbin/ipvsadm -A -t $VIP2:8080 -s wlc -p 120

/sbin/ipvsadm -a -t $VIP2:8080 -r $RIP3:8080 -g

/sbin/ipvsadm -a -t $VIP2:8080 -r $RIP4:8080-g

#Run lvs

/sbin/ipvsadm

#end

 

配置ldirectord

[root@lvsdr ~]# cp /usr/share/doc/heartbeat-ldirectord-2.1.3/ldirectord.cf /etc/ha.d

vi /etc/ha.d/ldirectord.cf

# Global Directives

checktimeout=3

checkinterval=1

#fallback=127.0.0.1:80

autoreload=yes

logfile="/var/log/ldirectord.log"

#logfile="local0"

#emailalert="admin@x.y.z"

#emailalertfreq=3600

#emailalertstatus=all

quiescent=yes

#VIP1=192.168.9.106 HTTP

virtual=192.168.9.106:80

real=192.168.9.101:80 gate

real=192.168.9.110:80 gate

#real=192.168.6.6:80 gate

#fallback=127.0.0.1:80 gate

service=http

#request="index.html"

#receive="Test Page"

#virtualhost=some.domain.com.au

scheduler=rr

#persistent=600

#netmask=255.255.255.255

protocol=tcp

#checktype=negotiate

checkport=80

#request="index.html"

#receive="Test Page"

#virtualhost=www.x.y.z

#VIP2=192.168.9.150 RESIN

virtual=192.168.9.150:8080

real=192.168.9.145:8080 gate

real=192.168.9.146:8080 gate

#real=192.168.6.6:8080 gate

#fallback=127.0.0.1:80 gate

#service=http

#request="index.html"

#receive="Test Page"

#virtualhost=some.domain.com.au

scheduler=wlc

persistent=600

#netmask=255.255.255.255

protocol=tcp

checktype=connect

checkport=8080

#request="index.html"

#receive="Test Page"

#virtualhost=www.x.y.z

加入自启动

[root@lvsdr ~]# cat /etc/rc.local

#!/bin/sh

#

# This script will be executed *after* all the other init scripts.

# You can put your own initialization stuff in here if you don't

# want to do the full Sys V style init stuff.

touch /var/lock/subsys/local

#/usr/local/bin/lvsdr start

/usr/local/lvsdr/lvs.sh

/etc/init.d/ldirectord start

#/etc/init.d/ipvsadm start

测试http://192.168.9.106 (两台apache负载均衡服务器测试)

测试http://192.168.9.150 (两台resin负载均衡服务器测试)