负载均衡服务器脚本配置

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 
#settheVirtualIPAddress 
/sbin/ifconfiglo:0192.168.9.106broadcast192.168.9.106netmask255.255.255.255up 
/sbin/routeadd-host192.168.9.106devlo:0 
#offARP 
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#p#

将此脚本添加自启动文件

[root@web1~]#cat/etc/rc.local 
#!/bin/sh 
# 
#Thisscriptwillbeexecuted*after*alltheotherinitscripts. 
#Youcanputyourowninitializationstuffinhereifyoudon't 
#wanttodothefullSysVstyleinitstuff. 
/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 
#settheVirtualIPAddress 
/sbin/ifconfiglo:0192.168.9.150broadcast192.168.9.150netmask255.255.255.255up 
/sbin/routeadd-host192.168.9.150devlo:0 
#offARP 
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

#p#将此脚本添加自启动文件

[root@resin1~]#cat/etc/rc.local 
#!/bin/sh 
# 
#Thisscriptwillbeexecuted*after*alltheotherinitscripts. 
#Youcanputyourowninitializationstuffinhereifyoudon't 
#wanttodothefullSysVstyleinitstuff. 
/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 
#setthevritualIPAddress 
/sbin/ifconfigeth0:0$VIP1broadcast$VIP1netmask255.255.255.255up 
/sbin/routeadd-host$VIP1deveth0:0 
/sbin/ifconfigeth0:1$VIP2broadcast$VIP2netmask255.255.255.255up 
/sbin/routeadd-host$VIP2deveth0:1 

#clearIPVStable 
/sbin/ipvsadm-C 
#SetLVS 
/sbin/ipvsadm-A-t$VIP1:80-srr 
/sbin/ipvsadm-a-t$VIP1:80-r$RIP1:80-g 
/sbin/ipvsadm-a-t$VIP1:80-r$RIP2:80-g 
/sbin/ipvsadm-A-t$VIP2:8080-swlc-p120 
/sbin/ipvsadm-a-t$VIP2:8080-r$RIP3:8080-g 
/sbin/ipvsadm-a-t$VIP2:8080-r$RIP4:8080-g 

#Runlvs 
/sbin/ipvsadm 
#end 

#p#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 
#GlobalDirectives 
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=192.168.9.106HTTP 
virtual=192.168.9.106:80 
real=192.168.9.101:80gate 
real=192.168.9.110:80gate 
#real=192.168.6.6:80gate 
#fallback=127.0.0.1:80gate 
service=http
#request="index.html"
#receive="TestPage"
#virtualhost=some.domain.com.au 
scheduler=rr
#persistent=600
#netmask=255.255.255.255 
protocol=tcp
#checktype=negotiate
checkport=80
#request="index.html"
#receive="TestPage"
#virtualhost=www.x.y.z 
#VIP2=192.168.9.150RESIN 
virtual=192.168.9.150:8080 
real=192.168.9.145:8080gate 
real=192.168.9.146:8080gate 
#real=192.168.6.6:8080gate 
#fallback=127.0.0.1:80gate 
#service=http
#request="index.html"
#receive="TestPage"
#virtualhost=some.domain.com.au 
scheduler=wlc
persistent=600
#netmask=255.255.255.255 
protocol=tcp
checktype=connect
checkport=8080
#request="index.html"
#receive="TestPage"
#virtualhost=www.x.y.z 

加入自启动

[root@lvsdr~]#cat/etc/rc.local 
#!/bin/sh 
# 
#Thisscriptwillbeexecuted*after*alltheotherinitscripts. 
#Youcanputyourowninitializationstuffinhereifyoudon't 
#wanttodothefullSysVstyleinitstuff. 

touch/var/lock/subsys/local 
#/usr/local/bin/lvsdrstart 
/usr/local/lvsdr/lvs.sh 
/etc/init.d/ldirectordstart 
#/etc/init.d/ipvsadmstart 

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)