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Linux集群lvs实战

发布时间:2014-09-05 14:45:20作者:知识屋

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
 
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