【转载】Linux 集群lvs实战

阿里狼

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