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MySQL数据库恢复(使用mysqlbinlog命令)

罗蓁蓁 2022-02-13 阅读 34


           1:开启binlog日志记录 

修改mysql配置文件mysql.ini,在[mysqld]节点下添加 

复制代码 代码如下: 

# log-bin 

log-bin = E:/log/logbin.log 


路径中不要包含中文和空格。重启mysql服务。通过命令行停止和启动mysql服务 

复制代码 代码如下: 

c:\>net stop mysql; 

c:\>net start mysql; 


进入命令行进入mysql并查看二进制日志是否已经启动 

Sql代码 

复制代码 代码如下: 

mysql>show variables like 'log_%'; 


日志成功开启后,会在E:/log/目录下创建logbin.index和logbin.000001两个文件。logbin.000001就是数据库的备份文件,以后就可以通过此文件对数据库进行恢复操作。 


2:查看备份的二进制文件 

Sql代码 

复制代码 代码如下: 

c:\mysql\bin\>mysqlbinlog e:/log/logbin.000001 


日后记录的操作多了,命令行方式基本就用不上了。可以使用将日志导出文件的方式来查看日志内容 

2.1 导出 

Xml代码 

复制代码 代码如下: 

c:\mysql\bin\>mysqlbinlog e:/log/logbin.000001 > e:/log/log.txt 


">": 导入到文件中; ">>": 追加到文件中 

如果有多个日志文件 

Sql代码 

复制代码 代码如下: 

c:\mysql\bin\> mysqlbinlog e:/log/logbin.000001 > e:/log/log.sql 

c:\mysql\bin\> mysqlbinlog e:/log/logbin.000002 >> e:/log/log.sq 


2.2 按指定位置导出: 

Sql代码 

复制代码 代码如下: 

c:\mysql\bin\>mysqlbinlog --start-position=185 --stop-position=338 e:/log/logbin.000001 > e:/log/log3.txt 


2.3 按指定时间导出: 

Xml代码 

复制代码 代码如下: 

c:\mysql\bin\>mysqlbinlog --start-datetime="2010-01-07 11:25:56" --stop-datetime="2010-01-07 13:23:50" e:/log/logbin.000001 > e:/log/log_by_date22.txt 


3:从备份恢复数据库 

做了一次更新操作,之后日志的内容如下: 

Sql代码 

复制代码 代码如下: 

/*!40019 SET @@session.max_insert_delayed_threads=0*/; 

/*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/; 

DELIMITER /*!*/; 

# at 4 

#110107 13:23:50 server id 1 end_log_pos 106 Start: binlog v 4, server v 5.1.53-community-log created 110107 13:23:50 at startup 

# Warning: this binlog is either in use or was not closed properly. 

ROLLBACK/*!*/; 

BINLOG ' 

ZqMmTQ8BAAAAZgAAAGoAAAABAAQANS4xLjUzLWNvbW11bml0eS1sb2cAAAAAAAAAAAAAAAAAAAAA 

AAAAAAAAAAAAAAAAAABmoyZNEzgNAAgAEgAEBAQEEgAAUwAEGggAAAAICAgC 

'/*!*/; 

# at 106 

#110107 13:26:58 server id 1 end_log_pos 185 Query thread_id=44 exec_time=1 error_code=0 

SET TIMESTAMP=1294378018/*!*/; 

SET @@session.pseudo_thread_id=44/*!*/; 

SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=1, @@session.unique_checks=1, @@session.autocommit=1/*!*/; 

SET @@session.sql_mode=1344274432/*!*/; 

SET @@session.auto_increment_increment=1, @@session.auto_increment_offset=1/*!*/; 

/*!\C utf8 *//*!*/; 

SET @@session.character_set_client=33,@@session.collation_connection=33,@@session.collation_server=33/*!*/; 

SET @@session.lc_time_names=0/*!*/; 

SET @@session.collation_database=DEFAULT/*!*/; 

BEGIN 

/*!*/; 

# at 185 

#110107 13:26:58 server id 1 end_log_pos 338 Query thread_id=44 exec_time=1 error_code=0 

use ncl-interactive/*!*/; 

SET TIMESTAMP=1294378018/*!*/; 

UPDATE `t_system_id` SET `id_value`='3000' WHERE (`table_name`='t_working_day') 

/*!*/; 

# at 338 

#110107 13:26:58 server id 1 end_log_pos 365 Xid = 8016 

COMMIT/*!*/; 

DELIMITER ; 

DELIMITER /*!*/; 

DELIMITER ; 

# End of log file 

ROLLBACK /* added by mysqlbinlog */; 

/*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/; 

/*!40019 SET @@session.max_insert_delayed_threads=0*/; 

/*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/; 

DELIMITER /*!*/; 

# at 4 

#110107 13:23:50 server id 1 end_log_pos 106 Start: binlog v 4, server v 5.1.53-community-log created 110107 13:23:50 at startup 

# Warning: this binlog is either in use or was not closed properly. 

ROLLBACK/*!*/; 

BINLOG ' 

ZqMmTQ8BAAAAZgAAAGoAAAABAAQANS4xLjUzLWNvbW11bml0eS1sb2cAAAAAAAAAAAAAAAAAAAAA 

AAAAAAAAAAAAAAAAAABmoyZNEzgNAAgAEgAEBAQEEgAAUwAEGggAAAAICAgC 

'/*!*/; 

# at 106 

#110107 13:26:58 server id 1 end_log_pos 185 Query thread_id=44 exec_time=1 error_code=0 

SET TIMESTAMP=1294378018/*!*/; 

SET @@session.pseudo_thread_id=44/*!*/; 

SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=1, @@session.unique_checks=1, @@session.autocommit=1/*!*/; 

SET @@session.sql_mode=1344274432/*!*/; 

SET @@session.auto_increment_increment=1, @@session.auto_increment_offset=1/*!*/; 

/*!\C utf8 *//*!*/; 

SET @@session.character_set_client=33,@@session.collation_connection=33,@@session.collation_server=33/*!*/; 

SET @@session.lc_time_names=0/*!*/; 

SET @@session.collation_database=DEFAULT/*!*/; 

BEGIN 

/*!*/; 

# at 185 

#110107 13:26:58 server id 1 end_log_pos 338 Query thread_id=44 exec_time=1 error_code=0 

use ncl-interactive/*!*/; 

SET TIMESTAMP=1294378018/*!*/; 

UPDATE `t_system_id` SET `id_value`='3000' WHERE (`table_name`='t_working_day') 

/*!*/; 

# at 338 

#110107 13:26:58 server id 1 end_log_pos 365 Xid = 8016 

COMMIT/*!*/; 

DELIMITER ; 

DELIMITER /*!*/; 

DELIMITER ; 

# End of log file 

ROLLBACK /* added by mysqlbinlog */; 

/*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/; 


3.1 恢复: 

Sql代码 

复制代码 代码如下: 

c:\mysql\bin\>mysqlbinlog e:/log/logbin.000001 | mysql -u root -p 


3.2 按指定位置恢复: 

Sql代码 

复制代码 代码如下: 

c:\mysql\bin\>mysqlbinlog --start-position=185 --stop-position=338 e:/log/logbin.000001 | mysql -u root -p 


3.3 按指定时间恢复: 

Xml代码 

复制代码 代码如下: 

c:\mysql\bin\>mysqlbinlog --start-datetime="2010-01-07 11:25:56" --stop-datetime="2010-01-07 13:23:50" e:/log/logbin.000001 | mysql -u root -p 


3.4 通过导出的脚本文件恢复 

Sql代码 

复制代码 代码如下: 

c:\mysql\bin\>mysql -e "source e:/log/log.sql" 


4.其他常用操作 

4.1 查看所有日志文件 


Sql代码 

复制代码 代码如下: 

mysql>show master logs; 


4.2 当前使用的binlog文件 

Sql代码 

复制代码 代码如下: 

mysql>show binlog events \g; 


4.3 产生一个新的binlog日志文件 

Sql代码 

复制代码 代码如下: 

mysql>flush logs; 


4.4 删除所有二进制日志,并从新开始记录(注意:reset master命令会删除所有的二进制日志) 

Sql代码 

复制代码 代码如下: 

mysql > flush logs; 

mysql > reset master; 


4.5 快速备份数据到sql文件 


Sql代码 

复制代码 代码如下: 

c:\mysql\bin>mysqldump -u root -p --opt --quick interactive > e:/log/mysqldump.sql 


为了方便查看,把从脚本恢复的命令在写一次 

Sql代码 

复制代码 代码如下: 

c:\mysql\bin\>mysql -e "source e:/log/mysqldump.sql" 


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