heartbeat与lvs和realserver的结合
heartbeat与lvs和realserver的结合拓扑图：
http://anming.blog.运维网.com/attachment/201111/114938253.jpg
主要依赖heartbeat-ldirectord-2.1.4-9.el5.i386.rpm这个软件包，注意：安装这个软件包就不需要开启ipvsadm服务，当启动heartbeat服务后自动启用ipvsadm服务。
当然ipvsadm服务也要安装。
需要下载的rpm包有：
heartbeat-2.1.4-9.el5.i386.rpm
heartbeat-ldirectord-2.1.4-9.el5.i386.rpm
heartbeat-pils-2.1.4-10.el5.i386.rpm
heartbeat-stonith-2.1.4-10.el5.i386.rpm
libnet-1.1.4-3.el5.i386.rpm
perl-MailTools-1.77-1.el5.noarch.rpm
附件内有
下边是配置情况：
流量分发服务器DIRECTOR1的配置
接口配置
eth0192.168.2.10
eth1192.168.10.1
使用yum时,别忘了挂在光盘...
执行脚本heart.sh
#！/bin/bash
cd heartbeat/
yum localinstall -y heartbeat* lib* perl* --nogpgcheck
echo"192.168.2.10 node1.abc.com node1" >>/etc/hosts
echo"192.168.2.15 node2.abc.com node2" >>/etc/hosts
echo"192.168.10.1 node1.abc.com node1" >>/etc/hosts
echo"192.168.10.2 node2.abc.com node2" >>/etc/hosts
sed-i"s/^HOSTNAME.*$/HOSTNAME=node1.abc.com/" /etc/sysconfig/network
hostname node1.abc.com
cp /usr/share/doc/heartbeat-2.1.4/ha.cf /etc/ha.d/
cp /usr/share/doc/heartbeat-2.1.4/authkeys/etc/ha.d/
cp /usr/share/doc/heartbeat-2.1.4/haresources /etc/ha.d/
cp /usr/share/doc/heartbeat-ldirectord-2.1.4/ldirectord.cf /etc/ha.d/
cd/etc/ha.d/
echo "bcast eth1">> ha.cf
echo "node node1.abc.com">> ha.cf
echo "node node2.abc.com">> ha.cf
echo "node1.abc.com 192.168.2.100 ldirectord::ldirectord.cf">>haresources
echo "auth 1">>authkeys
echo "1 md5 d41d8cd98f00b204e9800998ecf8427e" >>authkeys
chmod 600 authkeys
脚本到此结束
md5的产生方法
# dd=/dev/urandombs=512 count=1 |openssl md5
d41d8cd98f00b204e9800998ecf8427e
然后编辑vim ldirectord.cf
virtual=192.168.2.100:80
real=192.168.2.20:80 gate
real=192.168.2.30:80 gate
#fallback=127.0.0.1:80 gate
service=http
request=".test.html"
receive="ok"
# virtualhost=some.domain.com.au
scheduler=rr
#persistent=600
#netmask=255.255.255.255
protocol=tcp
checktype=negotiate
checkport=80
request="index.html"
receive="Test Page"
virtualhost=www.x.y.z
安装完ipvsadm服务后不要启动该服务.
service heartbeat restart
DIRECTOR2流量分发服务器的配置
接口配置
eth0192.168.2.15
eth1192.168.10.2
执行脚本heart.sh
#！/bin/bash
cd heartbeat/
yum localinstall -y heartbeat* lib* perl* --nogpgcheck
echo"192.168.2.10 node1.abc.com node1" >>/etc/hosts
echo"192.168.2.15 node2.abc.com node2" >>/etc/hosts
echo"192.168.10.1 node1.abc.com node1" >>/etc/hosts
echo"192.168.10.2 node2.abc.com node2" >>/etc/hosts
sed-i"s/^HOSTNAME.*$/HOSTNAME=node1.abc.com/" /etc/sysconfig/network
hostname node2.abc.com
cp /usr/share/doc/heartbeat-2.1.4/ha.cf /etc/ha.d/
cp /usr/share/doc/heartbeat-2.1.4/authkeys/etc/ha.d/
cp /usr/share/doc/heartbeat-2.1.4/haresources /etc/ha.d/
cp /usr/share/doc/heartbeat-ldirectord-2.1.4/ldirectord.cf /etc/ha.d/
cd/etc/ha.d/
echo "bcast eth1">> ha.cf
echo "node node1.abc.com">> ha.cf
echo "node node2.abc.com">> ha.cf
echo "node1.abc.com 192.168.2.100 ldirectord::ldirectord.cf">>haresources
//指定node1.abc.com作为主流量分发器。
echo "auth 1">>authkeys
echo "1 md5 d41d8cd98f00b204e9800998ecf8427e" >>authkeys
chmod 600 authkeys
然后编辑vim ldirectord.cf
virtual=192.168.2.100:80
real=192.168.2.20:80 gate
real=192.168.2.30:80 gate
#fallback=127.0.0.1:80 gate
service=http
request=".test.html"
receive="ok"
# virtualhost=some.domain.com.au
scheduler=rr
#persistent=600
#netmask=255.255.255.255
protocol=tcp
checktype=negotiate
checkport=80
request="index.html"
receive="Test Page"
virtualhost=www.x.y.z
安装完ipvsadm软件包后不要启动该服务.
service heartbeat restart
做完这些后我们可以查看node1上的ip地址 http://anming.blog.运维网.com/attachment/201111/115630813.jpg
可以看到虚拟地址已经出现在eth0：0子接口上为2.100
还可以查看ipvsadm –L，有调度算法 http://anming.blog.运维网.com/attachment/201111/115647798.jpg
但是node2上什么也没有，只是作为一个备份设备。
cd /usr/lib/heartbeat/
./hb_standby //模拟心跳线down掉
hb_takeover //模拟心跳线恢复
执行脚本./hb_standby
当主流量分发器node1通过模拟standby时，通过察看日志可以发现
tail -f/var/log/message http://anming.blog.运维网.com/attachment/201111/115819487.jpg
可以很清楚的看到node1已经处于standby状态，node2处于开放状态
通过查看node2的接口地址，出现了虚地址所在的eth0：0上的地址 http://anming.blog.运维网.com/attachment/201111/115713716.jpg
通过ipvsadm –L可以看出node2上开启了ipvsadm服务 http://anming.blog.运维网.com/attachment/201111/115928242.jpg
在所有的real server上边配置：
Ifconfig lo:0192.168.2.100netmask 255.255.255.255
routeadd-host 192.168.2.100dev lo:0//配置一条路由强制返回时通过lo:0
vim /etc/sysctl.conf
添加下边的两行，其实只需要all就可以了。all包含所有接口
net.ipv4.conf.all.arp_announce = 2
net.ipv4.conf.lo.arp_announce = 2
net.ipv4.conf.all.arp_ignore = 1
net.ipv4.conf.lo.arp_ignore = 1
web1
eth0192.168.2.20
在/var/www/html/下创建一个.test.htm的页面，随便写点。
Touch.test.htm //内容只写一个ok就可以了。
service httpd restart
web2
eth0192.168.2.30
在/var/www/html/下创建一个.test.htm的页面，随便写点。
Touch.test.htm //内容只写一个ok就可以了。
service httpd restart
附件：http://down.运维网.com/data/2359251
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