【转载】Linux 集群lvs实战

Linux集群-LVS(DR)+Heartbeat

LVS+Heartbeat



LVS1和LVS2所完成一样的工作，那么配置脚本也相同。唯一不同的是heartbeat配置文件ha.cf心跳地址不同。

真实的web，mysql，ftp……配置一样

LVS配置

#!/bin/bash

######lvs######

ifconfig eth0:0 222.90.88.88 broadcast 222.90.88.88 netmask 255.255.255.255 up

route add -host 222.90.88.88 dev eth0:0

ipvsadm -C

ipvsadm -A -t 222.90.88.88:80 -s rr

ipvsadm -a -t 222.90.90.88.88:80 -r 222.90.88.10 -g

ipvsadm -a -t 222.90.90.88.88:80 -r 222.90.88.20 -g

ipvsadm

Web配置

#!/bin/bash

######real server######

ifconfig lo:0 222.90.88.88 broadcast 222.90.88.88 netmask 255.255.255.255 up

route add -host 222.90.88.88 dev lo:0

######ipvsadm######

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

sysctl -p

操作：

四台LINUX主机（LVS1,LVS2和SEV1,SEV2）

LVS1安装heartbeat

#rpm -ivh heartbeat-pils-2.1.3-3.el5.centos.i386.rpm

#rpm -ivh heartbeat-stonith-2.1.3-3.el5.centos.i386.rpm

#rpm -ivh heartbeat-2.1.3-3.el5.centos.i386.rpm

#rpm -q heartbeat -d（解压文件）

#cd /usr/share/docheartbeat-2.1.3/

#cp authkeys ha.cf haresources /etc/ha.d

#cd /etc/ha.d

#vim authkeys

……

auth 1

1 crc

……

#vim /haresources

……

vip-server1 222.90.88.88 vip.sh（LVS1，vip.sh存放在/etc/init.d[开机时自启]）

……

#vim /ha.cf

…….

bcast eth0 #Linux （心跳检测网卡）

…….

ucast eth0 222.90.88.40 （ping LVS2）

…….

node vip-server1 （LVS1机器名）

node vip-server2 （LVS2机器名）

…….

#chmod 600 authkeys

#vim /etc/init.d/vip.sh

#!/bin/sh

ifconfig eth0:0 222.90.88.88 broadcast 222.90.88.88 netmask 255.255.255.255 up

route add -host 222.90.88.88 dev eth0:0

######setup ipvs######

ipvsadm -C

ipvsadm -A -t 222.90.88.88:80 -s rr

ipvsadm -a -t 222.90.88.88:80 -r 222.90.88.10 -g

ipvsadm -a -t 222.90.88.88:80 -r 222.90.88.20 -g

ipvsadm

#chmod 777 vip.sh

#/etc/init.d/vip.sh

LVS2安装heartbeat

#rpm -ivh heartbeat-pils-2.1.3-3.el5.centos.i386.rpm

#rpm -ivh heartbeat-stonith-2.1.3-3.el5.centos.i386.rpm

#rpm -ivh heartbeat-2.1.3-3.el5.centos.i386.rpm

#rpm -q heartbeat -d（解压文件）

#cd /usr/share/docheartbeat-2.1.3/

#cp authkeys ha.cf haresources /etc/ha.d

#cd /etc/ha.d

#vim authkeys

……

auth 1

1 crc

……

#vim /haresources

……

vip-server1 222.90.88.88 vip.sh（LVS1，vip.sh存放在/etc/init.d[开机时自启]）

……

#vim /ha.cf

…….

bcast eth0 #Linux （心跳检测网卡）

…….

ucast eth0 222.90.88.30 （ping LVS1）

…….

node vip-server1 （LVS1机器名）

node vip-server2 （LVS2机器名）

…….

#chmod 600 authkeys

#vim /etc/init.d/vip.sh

#!/bin/sh

ifconfig eth0:0 222.90.88.88 broadcast 222.90.88.88 netmask 255.255.255.255 up

route add -host 222.90.88.88 dev eth0:0

######setup ipvs######

ipvsadm -C

ipvsadm -A -t 222.90.88.88:80 -s rr

ipvsadm -a -t 222.90.88.88:80 -r 222.90.88.10 -g

ipvsadm -a -t 222.90.88.88:80 -r 222.90.88.20 -g

ipvsadm

#chmod 777 vip.sh

#/etc/init.d/vip.sh

SER1操作

#vim /etc/init.d/lvs.sh

#!/bin/sh

######realserver######

ifconfig lo:0 222.90.88.88 broadcast 222.90.88.88 netmask 255.255.255.255 up

route add -host 222.90.88.88 dev lo:0

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

sysctl -p

#vim /var/www/html/index.html

this is SER1

#service httpd start

SER2操作

#vim /etc/init.d/lvs.sh

#!/bin/sh

######realserver######

ifconfig lo:0 222.90.88.88 broadcast 222.90.88.88 netmask 255.255.255.255 up

route add -host 222.90.88.88 dev lo:0

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

sysctl -p

#vim /var/www/html/index.html

this is SER2

#service httpd start

测试故障状态

LVS2heartbeat停止，LVS1正常；SER1,SER2正常

LVS1 heartbeat停止，LVS2正常；SER1,SER2正常

LVS1正常，LVS2正常；SER1不正常,SER2正常

LVS1正常，LVS2正常；SER1正常,SER2不正常