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mysql 基于binlog进行恢复

Jun 07, 2016 pm 03:33 PM
binlog mysql based on recover conduct

1.binlog 日志打开方法 在 my.cnf 这个文件中加一行( Windows 为 my.ini )。 #vi /etc/my.cnf [mysqld] log-bin=mysqlbin-log # 添加这一行就 ok 了 = 号后面的名字自己定义吧 然后我们可以对数据库做简单的操作后到 mysql 数据文件所在的目录来看 binlog

1.binlog日志打开方法

my.cnf这个文件中加一行(Windowsmy.ini)。
#vi /etc/my.cnf
[mysqld]
log-bin=mysqlbin-log #
添加这一行就ok=号后面的名字自己定义吧 
然后我们可以对数据库做简单的操作后到mysql数据文件所在的目录来看binlog文件。

2. 查看自己的BINLOG的名字是什么

命令:show binary logs

mysql 基于binlog进行恢复

3. 做了几次操作后,它就记录了下来。

命令:show binlog events

mysql 基于binlog进行恢复

以后每次对表的相关操作时候,这个File_size都会增大。

4. mysqlbinlog 工具来显示记录的二进制结果,然后导入到文本文件,为了以后的恢复。

详细过程如下:
C:\Program Files\MySQL\MySQL Server 5.0\bin>mysqlbinlog --start-position=4 --sto

p-position=106 mysqlbin-log.000001 > c:\\test1.txt

 

或者全部导出:

C:\Program Files\MySQL\MySQL Server 5.0\bin>mysqlbinlog mysqlbin-log.000001 > c:\\test1.txt

 

 

test1.txt的文件内容:

;

;

DELIMITER ;

# at 4

#110916  9:51:06 server id 1  end_log_pos 98 Start: binlog v 4, server v 5.0.45-community-nt-log created 110916  9:51:06 at startup

# Warning: this binlog was not closed properly. Most probably mysqld crashed writing it.

ROLLBACK;

# at 98

#110916 10:11:21 server id 1  end_log_pos 28   Intvar

SET INSERT_ID=2;

# at 126

#110916 10:11:21 server id 1  end_log_pos 143        Query     thread_id=2    exec_time=0  error_code=0

use test;

SET TIMESTAMP=1316139081;

SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=1, @@session.unique_checks=1;

SET @@session.sql_mode=1344274432;

;

SET @@session.character_set_client=33,@@session.collation_connection=33,@@session.collation_server=8;

insert into User (name,password) values('ddd','222');

DELIMITER ;

# End of log file

ROLLBACK ;

;

 

5. 导入结果到MYSQL中进行数据恢复。

C:\Program Files\MySQL\MySQL Server 5.0\bin>mysqlbinlog --start-position=134 --stop-position=330 mysqlbin-log.000001 | mysql -uroot -p

 

或者

C:\Program Files\MySQL\MySQL Server 5.0\bin>mysqlbinlog --start-position=134 --stop-position=330 mysqlbin-log.000001 >test1.txt

进入MYSQL导入

mysql> source c:\\test1.txt

 

还有一种办法是根据日期来恢复

C:\Program Files\MySQL\MySQL Server 5.0\bin >mysqlbinlog --start-datetime="2009-09-14 0:20:00" --stop-datetim="2009-09-15 01:25:00" /diskb/bin-logs/xxx_db-bin.000001 | mysql -u root

 

6、查看数据

Select * from User


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