1：安装命令 2台机分别安装
yum –y install mysql-server
2:配置登陆用户的密码root
/usr/bin/mysqladmin -u root password 'root'
3：配置允许第三方机器访问本机Mysql，分别在2个机子上配置user表
3.1远程的的数据库 user表 ，其中host ：% 代表所有的ip都可以连接，如果需要指定的ip连接，host:指定的ip
| host | user | password | +------+------+-------------------------------------------+ | % | root | *81F5E21E35407D884A6CD4A731AEBFB6AF209E1B | +------+------+-------------------------------------------+3.2表结构改成这样后：需要刷新权限
mysql> flush privileges;3.3 远程的机器连接测试
[root@fei ~]# mysql -u root -p -h 连接的MySQL服务器所在的电脑IP
[root@fei ~]# mysql -u root -p -h 192.168.24.25
4.配置主从机器分别配置
1) vim /etc/my.cnf
添加
[mysqld]
server-id=1 //不同的mysql服务器id要不同，比如我另一台mysql服务器server-id=2 log-bin=mysql-bin datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock user=mysql # Disabling symbolic-links is recommended to prevent assorted security risks symbolic-links=0 [mysqld_safe] log-error=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid2)分别重新启动主从二台mysql服务
service mysqld restart3)查看MySQL有没有变化
mysql> show VARIABLES LIKE 'server_id';
+---------------+-------+ | Variable_name | Value | +---------------+-------+ | server_id | 1 | +---------------+-------+ 1 row in set (0.00 sec)4）获取文件名File 192.168.163.130服务器
mysql> show master status;
+------------------+----------+--------------+------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | +------------------+----------+--------------+------------------+ | mysql-bin.000002 | 106 | | | +------------------+----------+--------------+------------------+ 1 row in set (0.00 sec)文件名为mysql-bin.000002，106代表日志从106行以后开始
5） 配置从服务器（可以实现主服务更新数据，从服务器也更新）
change master to
master_host='192.168.163.130',//mysql主服务器地址
master_user='root',
master_password='root',
master_log_file='mysql-bin.000002',
master_log_pos=106;
执行
在192.168.163.131从服务器执行
mysql> change master to
-> master_host='192.168.163.130', -> master_user='root', -> master_password='root', -> master_log_file='mysql-bin.000002', -> master_log_pos=106; Query OK, 0 rows affected (0.04 sec)开启从服务器：mysql> start slave;
查询从服务器状态：mysql> show slave status \G;
*************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 192.168.163.130 //主服务器地址 Master_User: root Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000002 Read_Master_Log_Pos: 106 Relay_Log_File: mysqld-relay-bin.000002 Relay_Log_Pos: 251 Relay_Master_Log_File: mysql-bin.000002 Slave_IO_Running: Yes // 表示去访问主服务器，yes表示通了 Slave_SQL_Running: Yes //发送一个sql语句给主服务器，yes表示通了 Replicate_Do_DB: Replicate_Ignore_DB: Replicate_Do_Table: Replicate_Ignore_Table: Replicate_Wild_Do_Table: Replicate_Wild_Ignore_Table: Last_Errno: 0 Last_Error: Skip_Counter: 0 Exec_Master_Log_Pos: 106 Relay_Log_Space: 407 Until_Condition: None Until_Log_File: Until_Log_Pos: 0 Master_SSL_Allowed: No Master_SSL_CA_File: Master_SSL_CA_Path: Master_SSL_Cert: Master_SSL_Cipher: Master_SSL_Key: Seconds_Behind_Master: 0 Master_SSL_Verify_Server_Cert: No Last_IO_Errno: 0 Last_IO_Error: Last_SQL_Errno: 0 Last_SQL_Error: 1 row in set (0.00 sec)6）主服务器测试，添加表数据，看下从库是是否更新表
添加表数据前：
mysql> show databases；
+--------------------+ | Database | +--------------------+ | information_schema | | mysql | | test |执行：
mysql> create database test1;
mysql> use test1;
mysql> create table user(id int(2),name char(20));
mysql> insert into user(1,'xia');添加表数据后：
mysql> select * from user;
+------+------+ | id | name | +------+------+ | 1 | xia | +------+------+ 1 row in set (0.00 sec)7）从服务测试
mysql> show databases;
+--------------------+ | Database | +--------------------+ | information_schema | | mysql | | test | | test1 | +--------------------+ 4 rows in set (0.00 sec) mysql> use test1; mysql> show tables; +-----------------+| Tables_in_test1 | +-----------------+ | user | +-----------------+ 1 row in set (0.00 sec)8）双主结构（刚刚的配置是在从服务器上配置，可以实现主服务更新数据，从服务器也更新，现在反过来，在主服务配置，实现从服务器更新，主服务器也更新）
配置从服务器,
change master to
master_host='192.168.163.131',//mysql主服务器地址
master_user='root',
master_password='root',
master_log_file='mysql-bin.000002',
master_log_pos=106;
执行
在192.168.163.130主服务器执行
mysql> change master to
-> master_host='192.168.163.131', -> master_user='root', -> master_password='root', -> master_log_file='mysql-bin.000002', -> master_log_pos=106; Query OK, 0 rows affected (0.02 sec)开启从服务器：mysql> start slave;
查询从服务器状态：mysql> show slave status \G;
Slave_IO_State: Waiting for master to send event Master_Host: 192.168.163.131 Master_User: root Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000002 Read_Master_Log_Pos: 106 Relay_Log_File: mysqld-relay-bin.000002 Relay_Log_Pos: 251 Relay_Master_Log_File: mysql-bin.000002 Slave_IO_Running: Yes Slave_SQL_Running: Yes