客戶端：192.168.19.1
添加默認網關：192.168.19.2
二：
路由器：
192.168.18.2
192.168.19.2
開啓路由轉發功能
vim /etc/sysctl.conf
net.ipv4.ip_forward = 1
三 分發器
ipvsadm-1.24-10.i386.rpm安裝這個包
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 安裝apache php php-mysql
將index.html insert.php mysql-c.php mysql-i.html mysql-r.php 拷貝到/var/www/html這個目錄下
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");
因爲主的是寫 輔的是讀得 所以分別添加對應的mysql AB的地址
注意輔助的地址因爲有兩個BB 還要做分發 所以那裏的地址爲虛擬的vip
創建步驟看後面
重啓 apache 注意一定要安裝php
五 mysql A B B
192.168.18.4
192.168.18.5
192.168.18.6
安裝步驟請看以前blog
A
創建兩個用戶
mysql> GRANT ALL PRIVILEGES ON *.* TO 'fu'@'%' identified by '123456';
mysql> GRANT ALL PRIVILEGES ON *.* TO 'zhu'@'%' identified by '123456';
mysql> flush privileges;
與前面apache上得 對應了
B1:
vip：ifconfig lo:0 192.168.18.250/32 broadcast 192.168.2.250 up
主機路由：route add –host 192.168.18.250 dev lo:0
默認路由：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重啓
B2:
vip：ifconfig lo:0 192.168.18.250/32 broadcast 192.168.2.250 up
主機路由：route add –host 192.168.18.250 dev lo:0
默認路由：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重啓
客戶端測試 訪問apache
點create table
Database created
return index.html創建成功
在mysql A 上
有my_db這個庫
點insert values
添加 fu fuzhilei 22
1 record added
點select U values 出現信息
fu zhilei 22
查看分發的效果
不斷地的點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