Mysql基于binlog主从复制配置_MySQL

Master-Slave 搭建环境：Master：Os: rhel-server-6.3-x86_64Mysql: MySQL -5.5.35-1虚拟机：Virtual BOXIp:192.168.56.12Slave：Os: rhel-server-6.3-x86_64Mysql: MySQL -5.5.35-1虚拟机：Virtual BOXIp:192.168.56.13

总体步骤：
1、 修改Master配置文件（my.cnf）
2、 在Master上创建一个有复制权限的用户
3、 复制Master上的数据库到Slave
4、 修改Slave配置文件（my.cnf）
5、 Slave初始化复制
6、 测试
7、 常见问题

[mysqld] server-id=1  //必须是服务器唯一id,默认是0,  log-bin=mysql-bin //必须启用二进制日志replicate-do-db=zbdba

2、 在Master上创建一个有复制权限的用户

mysql>create user zbdba; mysql>grant replication slave on *.* to zbdba identified by '123456';

3、 复制Master上的数据库到Slave

mysql>flush tables with read lock; mysql> show master status    -> ;+-----------------+----------+--------------+------------------+| File            | Position | Binlog_Do_DB | Binlog_Ignore_DB |+-----------------+----------+--------------+------------------+| ogg1-bin.000003 |      107 |              |                  |+-----------------+----------+--------------+------------------+1 row in set (0.00 sec)mysql>quit[root@ogg /]# /usr/bin/mysqldump zbdba -uroot -pmysql --opt | mysql zbdba -uroot -pmysql -h 192.168.56.13需要在slave中授权：GRANT ALL PRIVILEGES ON *.* TO 'root'@'192.168.56.13' IDENTIFIED BY 'mysql' WITH GRANT OPTION;mysql>unlock tables;

[mysqld] server-id=2  //必须是服务器唯一id,默认是0,  log-bin=mysql-bin //必须启用二进制日志replicate-do-db=zbdba

mysql>slave stop; mysql>CHANGE MASTER TO MASTER_HOST='192.168.56.12',MASTER_USER='zbdba',MASTER_PASSWORD='123456',MASTER_LOG_FILE='ogg1-bin.000003',MASTER_LOG_POS=107;mysql> show slave status/G;*************************** 1. row ***************************               Slave_IO_State: Waiting for master to send event                  Master_Host: 192.168.56.12                  Master_User: zbdba                  Master_Port: 3306                Connect_Retry: 60              Master_Log_File: ogg1-bin.000003          Read_Master_Log_Pos: 107               Relay_Log_File: ogg2-relay-bin.000002                Relay_Log_Pos: 252        Relay_Master_Log_File: ogg1-bin.000003             Slave_IO_Running: Yes            Slave_SQL_Running: Yes              Replicate_Do_DB: zbdba

master：

mysql> show tables;+-----------------+| Tables_in_zbdba |+-----------------+| guestbook       || test            || test1           |+-----------------+

create table test2 select * from test1;

mysql> show tables;+-----------------+| Tables_in_zbdba |+-----------------+| guestbook       || test            || test1           || test2           |+-----------------+

mysql> show tables;+-----------------+| Tables_in_zbdba |+-----------------+| guestbook       || test            || test1           || test2           |+-----------------+4 rows in set (0.00 sec)

7、 常见问题
/etc下面没有对应的my.cnf文件
解决方法：
如果mysql使用rpm包安装的，/etc下没有对应的my.cnf文件，这时候只需要复制一个/usr/share/mysql目录下的.cnf文件到/etc目录，并改名为my.cnf即可。


Server-id参数无法修改
解决方法：
看my.cnf中是否存在相同的server-id=1


MYSQL主备出现这个错误: ERROR 1201 (HY000):
解决方法：
mysql> slave stop;
Query OK, 0 rows affected, 1 warning (0.00 sec)


mysql> reset slave;


Query OK, 0 rows affected,(0.00 sec)




ERROR 1130 (HY000): Host '*.*.*.*' is not allowed to connect to this MySQL server
解决方法：
如果你想允许用户myuser从ip为192.168.1.3的主机连接到mysql服务器，并使用mypassword作为密码
GRANT ALL PRIVILEGES ON *.* TO 'myuser'@'192.168.1.3' IDENTIFIED BY 'mypassword' WITH GRANT OPTION;