负载均衡之LB-DR模型
主机规划
node1:eth0-->172.17.2.129/22
lo:0-->172.17.2.140/32
node2:eth0-->172.17.2.130/22
lo:0-->172.17.2.140/32
direc:eth0-->172.17.2.132/22
ech0:0-->172.17.2.140/32
实验准备：
1.配置IP
node1~2:
echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore
echo 1 > /proc/sys/net/ipv4/conf/eth0/arp_ignore
echo 2 > /proc/sys/net/ipv4/conf/all/arp_announce
echo 2 > /proc/sys/net/ipv4/conf/eth0/arp_announce
yum -y install net-tools
ip addr add 172.17.2.140/32 dev lo:0
route add -host 172.17.2.140 dev lo
2.启动服务
yum install -y httpd
systemctl start httpd
node1:
echo <h1>node1</h1> >/var/www/html/index.html
node2:
echo <h1>node2</h1> >/var/www/html/index.html
ipvsadm安装配置
director:
yum -y install net-tools
ip addr add 172.17.2.140/32 eth0:0
route add -host 172.17.2.140 dev eth0
yum install -y ipvsadm
ipvsadm -A -t 172.17.2.140:80 -s rr
ipvsadm -a -t 172.17.2.140:80 -r 172.17.2.129:80 -g
ipvsadm -a -t 172.17.2.140:80 -r 172.17.2.130:80 -g
查看负载均衡效果
~]# ipvsadm -L -n
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags
-> RemoteAddress:Port Forward Weight ActiveConn InActConn
TCP 172.17.2.140:80 rr
-> 172.17.2.129:80 Route 1 0 3
-> 172.17.2.130:80 Route 1 0 2
[root@localhost ~]# curl 172.17.2.140
<h1>node1</h1>
[root@localhost ~]# curl 172.17.2.140
<h1>node2</h1>
[root@localhost ~]# curl 172.17.2.140
<h1>node1</h1>
[root@localhost ~]# curl 172.17.2.140
<h1>node2</h1>
[root@localhost ~]# curl 172.17.2.140
<h1>node1</h1>
通过以上的设置，可以查看到内容在不同节点之前的切换
本文出自 “梦想人生” 博客，请务必保留此出处http://hzde0128.blog.51cto.com/918211/1914482
原文地址：http://hzde0128.blog.51cto.com/918211/1914482
