dr模式下的mysql的ABB

客户端：192.168.19.1

添加默认网关：192.168.19.2

二：

路由器：

192.168.18.2

192.168.19.2

开启路由转发功能

vim /etc/sysctl.conf

net.ipv4.ip_forward = 1

三 分发器

ipvsadm-1.24-10.i386.rpm安装这个包

ifconfig eth0:0 192.168.18.250/32 broadcast 192.168.18.250 up

[root@localhost Cluster]# route add -host 192.168.18.250 dev eth0:0

[root@localhost Cluster]# ipvsadm -A -t 192.168.18.250:3306 -s rr

[root@localhost Cluster]# ipvsadm -a -t 192.168.18.250:3306 -r 192.168.18.5 -g

[root@localhost Cluster]# ipvsadm -a -t 192.168.18.250:3306 -r 192.168.18.6 -g

[root@localhost Cluster]# ipvsadm-ln

-bash: ipvsadm-ln: command not found

[root@localhost Cluster]# ipvsadm -ln

IP Virtual Server version 1.2.1 (size=4096)

Prot LocalAddress:Port Scheduler Flags

-> RemoteAddress:Port Forward Weight ActiveConn InActConn

TCP 192.168.18.250:3306 rr

-> 192.168.18.6:3306 Route 1 0 0

-> 192.168.18.5:3306 Route 1 0 0

四 安装apache php php-mysql

将index.html insert.php mysql-c.php mysql-i.html mysql-r.php 拷贝到/var/www/html这个目录下

vim mysql-c.php

$con = mysql_connect("192.168.18.4","zhu","123456");

vim insert.php

$con = mysql_connect("192.168.18.4","zhu","123456");

vim mysql-r.php

$con = mysql_connect("192.168.18.250","fu","123456");

因为主的是写 辅的是读得 所以分别添加对应的mysql AB的地址

注意辅助的地址因为有两个BB 还要做分发 所以那里的地址为虚拟的vip

创建步骤看后面

重启 apache 注意一定要安装php

五 mysql A B B

192.168.18.4

192.168.18.5

192.168.18.6

安装步骤请看以前blog

A

创建两个用户

mysql> GRANT ALL PRIVILEGES ON *.* TO 'fu'@'%' identified by '123456';

mysql> GRANT ALL PRIVILEGES ON *.* TO 'zhu'@'%' identified by '123456';

mysql> flush privileges;

与前面apache上得 对应了

B1:

vip：ifconfig lo:0 192.168.18.250/32 broadcast 192.168.2.250 up

主机路由：route add –host 192.168.18.250 dev lo:0

默认路由：route add default gw 192.168.18.2

echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore

echo 2 > /proc/sys/net/ipv4/conf/all/arp_announce

mysql重启

B2:

vip：ifconfig lo:0 192.168.18.250/32 broadcast 192.168.2.250 up

主机路由：route add –host 192.168.18.250 dev lo:0

默认路由：route add default gw 192.168.18.2

echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore

echo 2 > /proc/sys/net/ipv4/conf/all/arp_announce

mysql重启

客户端测试 访问apache

点create table

Database created

return index.html创建成功

在mysql A 上

有my_db这个库

点insert values

添加 fu fuzhilei 22

1 record added

点select U values 出现信息

fu zhilei 22

查看分发的效果

不断地的点select U values

[root@localhost html]# ipvsadm -ln

IP Virtual Server version 1.2.1 (size=4096)

Prot LocalAddress:Port Scheduler Flags

-> RemoteAddress:Port Forward Weight ActiveConn InActConn

TCP 192.168.18.250:3306 rr

-> 192.168.18.6:3306 Route 1 0 0

-> 192.168.18.5:3306 Route 1 0 0

[root@localhost html]# ipvsadm -lnc

IPVS connection entries

pro expire state source virtual destination

[root@localhost html]# ipvsadm -ln

IP Virtual Server version 1.2.1 (size=4096)

Prot LocalAddress:Port Scheduler Flags

-> RemoteAddress:Port Forward Weight ActiveConn InActConn

TCP 192.168.18.250:3306 rr

-> 192.168.18.6:3306 Route 1 0 0

-> 192.168.18.5:3306 Route 1 0 0

[root@localhost html]# ipvsadm -ln

IP Virtual Server version 1.2.1 (size=4096)

Prot LocalAddress:Port Scheduler Flags

-> RemoteAddress:Port Forward Weight ActiveConn InActConn

TCP 192.168.18.250:3306 rr

-> 192.168.18.6:3306 Route 1 0 1

-> 192.168.18.5:3306 Route 1 0 1

[root@localhost html]# ipvsadm -ln

IP Virtual Server version 1.2.1 (size=4096)

Prot LocalAddress:Port Scheduler Flags

-> RemoteAddress:Port Forward Weight ActiveConn InActConn

TCP 192.168.18.250:3306 rr

-> 192.168.18.6:3306 Route 1 0 2

-> 192.168.18.5:3306 Route 1 0 1

[root@localhost html]# ipvsadm -ln

IP Virtual Server version 1.2.1 (size=4096)

Prot LocalAddress:Port Scheduler Flags

-> RemoteAddress:Port Forward Weight ActiveConn InActConn

TCP 192.168.18.250:3306 rr

-> 192.168.18.6:3306 Route 1 0 2

-> 192.168.18.5:3306 Route 1 0 2