LVS+Apache+PHP+MySQL读写分离
route:
ifconfig eth0 192.168.18.1
ifconfig eth1 192.168.20.1
echo 1 > /proc/sys/net/ipv4/ip_forward
分发器：
ifconfig eth0 192.168.18.254
ifconfig eth0:0 192.168.18.250/32 broadcast 192.168.18.250 up
route add -host 192.168.18.250 dev eth0:0
ipvsadm -A -t 192.168.18.250:3306 -s rr
ipvsadm -a -t 192.168.18.250:3306 -r 192.168.18.100 -g
ipvsadm -a -t 192.168.18.250:3306 -r 192.168.18.200 -g
ipvsadm -a -t 192.168.18.250:3306 -r 192.168.18.220 -g
real server 1：
ifconfig lo:0 192.168.18.250/32 broadcast 192.168.18.250 up
route add -host 192.168.18.250 dev lo:0
route add default gw 192.168.18.1
echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore
echo 2 > /proc/sys/net/ipv4/conf/all/arp_announce
/etc/init.d/httpd restart
real server 2：
ifconfig lo:0 192.168.18.250/32 broadcast 192.168.18.250 up
route add -host 192.168.18.250 dev lo:0
route add default gw 192.168.18.1
echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore
echo 2 > /proc/sys/net/ipv4/conf/all/arp_announce
/etc/init.d/httpd restart
real server 3：
ifconfig lo:0 192.168.18.250/32 broadcast 192.168.18.250 up
route add -host 192.168.18.250 dev lo:0
route add default gw 192.168.18.1
echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore
echo 2 > /proc/sys/net/ipv4/conf/all/arp_announce
/etc/init.d/httpd restart
Apache：
解压、安装mysql-w-r.tar.gz
修改指向数据库IP
Mysql-A
vim /etc/my.cnf
[mysqld]
server_id = 1
log-bin=binlog
log-bin-index=binlog.index
service mysqld restart
mysql> grant replication slave ON *.* TO 'ck'@'%' identified by '123';
flush privileges;
mysqldump -A -x > /tmp/full.sql
scp /tmp/full.sql root@192.168.18.200:/tmp/
scp /tmp/full.sql root@192.168.18.220:/tmp/
flush tables with read lock;
show master status;
+---------------+----------+--------------+------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+---------------+----------+--------------+------------------+
| binlog.000001 | 568 | | |
unlock tables;
Mysql-B1:
vim /etc/my.cnf
[mysqld]
server_id = 2
relay_log = /var/lib/mysql/mysql-relay-bin
relay_log_index=/var/lib/mysql/mysql-relay-bin.index
cd /var/lib/mysql
rm -fr *
service mysqld restart
mysql < /tmp/full.sql
mysql> change master to master_host='192.168.18.100', master_port=3306, master_user='ck', master_password='123', master_log_file='binlog.000001',master_log_pos=568;
start slave;
show slave status \G
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Mysql-B2:
vim /etc/my.cnf
[mysqld]
server_id = 3
relay_log = /var/lib/mysql/mysql-relay-bin
relay_log_index=/var/lib/mysql/mysql-relay-bin.index
cd /var/lib/mysql
rm -fr *
service mysqld restart
mysql < /tmp/full.sql
mysql> change master to master_host='192.168.18.100', master_port=3306, master_user='ck', master_password='123', master_log_file='binlog.000001',master_log_pos=568;
start slave;
show slave status \G
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
客户端测试
测试未知数。。。。。。