LVS+Heartbeat+ldirectord+ipvsadm搭建负载均衡——安装配置

1.安装环境

操作系统:Suse 11.3 X86_64 版本(内核已经自带LVS,不需要安装重新编译内核)

内核版本: 2.6.27.19-5-default

 

用源代码安装包,安装的时候碰到很多基础依赖包,着实比较累,我安装了一天,一个个的下依赖包才搞定,所以建议配置zypper,让他来代替。

(注:zypper类似于yum或者apt-get)

 

zypper添加两个安装源

zypper ar  http://packman.unixheads.com/suse/11.0/ My_Packman_USA

zypper ar  http://download.opensuse.org/distribution/11.3/repo/oss/ opensuse11_3

 

刷新源 zypper ref

zypper设置完成

 

2.安装

 

zypper se ipvsadm 搜索 ipvsadm

列出搜索结果软件:

zypper in ipvsadm 安装ipvsadm

 

zypper se heartbeat

zypper in heartbeat

 

zypper in heartbeat-ldirectord

zypper in heartbeat-ldirectord

安装完成。

 

3.配置

服务器及IP为

虚拟ip :     eth1:192.168.1.58                  eth0:xxx.xxx.xxx.58

主LVS:        eth1:192.168.1.52                  eth0:xxx.xxx.xxx.52

备份LVS:     eth1:192.168.1.53                  eth0:xxx.xxx.xxx.53

真是服务器:eth1:192.168.1.54/55/56/57  eth0:xxx.xxx.xxx.54/55/56/57

 

配置/etc/ha.d/ha.cf

 

logfile /var/log/ha-log
keepalive 2
deadtime 30
deadping 5
warntime 10
initdead 30
udpport 694
ucast eth0 192.168.1.52 #52上写53,53反过来
auto_failback on
node linux-kwfx #主域名
node linux-1cb2 #次域名
ping_group group1 xxx.xxx.xxx.52 xxx.xxx.xxx.53
respawn root /usr/lib64/heartbeat/ipfail
apiauth ipfail gid=root uid=root

 配置/etc/ha.d/haresources

 

linux-kwfx LVSSyncDaemonSwap::master IPaddr::xxx.xxx.xxx.58/24/eth0:0/xxx.xxx.xxx.255 ldirectord

 

配置/etc/ha.d/ldirectord

 

checktimeout=30
checkinterval=5
#fallback=127.0.0.1:80
autoreload=yes
logfile="/var/log/ldirectord.log"
quiescent=no
virtual=xxx.xxx.xxx.58:80       #虚拟ip地址 
real=xxx.xxx.xxx.54:80 gate   #真实ip地址  
real=xxx.xxx.xxx.55:80 gate
real=xxx.xxx.xxx.56:80 gate
real=xxx.xxx.xxx.57:80 gate
fallback=127.0.0.1:80 gate
service=http   #检查方式     
request="lvs_check.html" #检查页面 
receive="lvsok" #返回信息 
scheduler=lc
protocol=tcp
 

配置/etc/ha.d/authkeys

 

auth 1
1 crc

 

chmod 600 authkeys

 

lvs配置完后,配置真实服务器

 

http服务80端口跟目录添加一个lvs_check.html,内容为lvsok

 

然后浏览器输入 http://ip/lvs_check.html ,能正确看到lvsok

 

真实服务器/etc/init.d/lvs.real

#!/bin/bash
#description:start realserver
#chkconfig
VIP1=xxx.xxx.xxx.58  #虚拟服务器ip
case "$1" in
start)
echo " start LVS of REALServer"
/sbin/ifconfig lo:0 $VIP1 broadcast $VIP1 netmask 255.255.255.255 up
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
;;
stop)
/sbin/ifconfig lo:0 down
echo "close LVS Directorserver"
echo "0" >/proc/sys/net/ipv4/conf/lo/arp_ignore
echo "0" >/proc/sys/net/ipv4/conf/lo/arp_announce
echo "0" >/proc/sys/net/ipv4/conf/all/arp_ignore
echo "0" >/proc/sys/net/ipv4/conf/all/arp_announce
;;
*)
echo "Usage: $0 {start|stop}"
exit 1
esac

然后

chmod u+x lvs.real

/etc/inid.d/lvs.real start

ifconfig 看看书否有虚拟ip,如果存在真实服务器ok

 

接下来启动heartbeat

service heartbeat start

启动成功后,用watch ipvsadm 看看能不能检查到真实ip,我这边安装的时候没有检查到,查看日志缺少2个包

 

 zypper in perl-Socket6

 zypper in perl-MailTools

 

然后service heartbeat stop

service heartbeat start

接下来就能看到54,55,56,57 这几个真实服务器了

 

lvs的DR配置完成,可以集群服务了

 

 

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