使用 MYSQLBINLOG 来恢复数据_MySQL, Oracle及数据库讨论区_Weblogic技术|Tuxedo技术|中间件技术|Oracle论坛|JAVA论坛|Linux/Unix技术|hadoop论坛

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主题： 使用 MYSQLBINLOG 来恢复数据

fozhyn

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发表于：

2014-11-25 15:49:49 | [全部帖] [楼主帖]

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BINLOG就是一个记录SQL语句的过程，和普通的LOG一样。不过只是她是二进制存储，普通的是十进制存储罢了。
1、配置文件里要写的东西：

[mysqld]
log-bin=mysql-bin(名字可以改成自己的，如果不改名字的话，默认是以主机名字命名)

重新启动MSYQL服务。
二进制文件里面的东西显示的就是执行所有语句的详细记录，当然一些语句不被记录在内，要了解详细的，见手册页。

2、查看自己的BINLOG的名字是什么。

show binlog events;
query result(1 records) Log_name Pos Event_type Server_id End_log_pos Info yueliangdao_binglog.000001 4 Format_desc 1 106 Server ver: 5.1.22-rc-community-log, Binlog ver: 4

3、我做了几次操作后，她就记录了下来。
又一次 show binlog events 的结果。

query result(4 records)
Log_name Pos Event_type Server_id End_log_pos Info yueliangdao_binglog.000001 4 Format_desc 1 106 Server ver: 5.1.22-rc-community-log, Binlog ver: 4 yueliangdao_binglog.000001 106 Intvar 1 134 INSERT_ID=1 yueliangdao_binglog.000001 134 Query 1 254 use `test`; create table a1(id int not null auto_increment primary key, str varchar(1000)) engine=myisam yueliangdao_binglog.000001 254 Query 1 330 use `test`; insert into a1(str) values ('I love you'),('You love me') yueliangdao_binglog.000001 330 Query 1 485 use `test`; drop table a1

4、用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：

D:\LAMP\MYSQL5\data>mysqlbinlog --start-position=4 --stop-position=106 yueliangd
ao_binglog.000001 > c:\\test1.txt

test1.txt的文件内容：

/*!40019 SET @@session.max_insert_delayed_threads=0*/;
/*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
DELIMITER /*!*/;
# at 4
#7122 16:9:18 server id 1 end_log_pos 106 Start: binlog v 4, server v 5.1.22-rc-community-log created 7122 16:9:18 at startup
# Warning: this binlog was not closed properly. Most probably mysqld crashed writing it.
ROLLBACK/*!*/;
DELIMITER ;
# End of log file
ROLLBACK /* added by mysqlbinlog */;
/*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;

第二行的记录：

D:\LAMP\MYSQL5\data>mysqlbinlog --start-position=106 --stop-position=134 yuelian
gdao_binglog.000001 > c:\\test1.txt

test1.txt内容如下：

/*!40019 SET @@session.max_insert_delayed_threads=0*/;
/*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
DELIMITER /*!*/;
# at 106
#7122 16:22:36 server id 1 end_log_pos 134 Intvar
SET INSERT_ID=1/*!*/;
DELIMITER ;
# End of log file
ROLLBACK /* added by mysqlbinlog */;
/*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;

第三行记录：

D:\LAMP\MYSQL5\data>mysqlbinlog --start-position=134 --stop-position=254 yuelian
gdao_binglog.000001 > c:\\test1.txt

内容：

/*!40019 SET @@session.max_insert_delayed_threads=0*/;
/*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
DELIMITER /*!*/;
# at 134
#7122 16:55:31 server id 1 end_log_pos 254 Query thread_id=1 exec_time=0 error_code=0
use test/*!*/;
SET TIMESTAMP=1196585731/*!*/;
SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=1, @@session.unique_checks=1/*!*/;
SET @@session.sql_mode=1344274432/*!*/;
/*!\C utf8 *//*!*/;
SET @@session.character_set_client=33,@@session.collation_connection=33,@@session.collation_server=33/*!*/;
create table a1(id int not null auto_increment primary key,
str varchar(1000)) engine=myisam/*!*/;
DELIMITER ;
# End of log file
ROLLBACK /* added by mysqlbinlog */;
/*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
/*!40019 SET @@session.max_insert_delayed_threads=0*/;

第四行的记录：

D:\LAMP\MYSQL5\data>mysqlbinlog --start-position=254 --stop-position=330 yuelian
gdao_binglog.000001 > c:\\test1.txt
/*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
DELIMITER /*!*/;
# at 254
#7122 16:22:36 server id 1 end_log_pos 330 Query thread_id=1 exec_time=0 error_code=0
use test/*!*/;
SET TIMESTAMP=1196583756/*!*/;
SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=1, @@session.unique_checks=1/*!*/;
SET @@session.sql_mode=1344274432/*!*/;
/*!\C utf8 *//*!*/;
SET @@session.character_set_client=33,@@session.collation_connection=33,@@session.collation_server=33/*!*/;
use `test`; insert into a1(str) values ('I love you'),('You love me')/*!*/;
DELIMITER ;
# End of log file
ROLLBACK /* added by mysqlbinlog */;
/*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;

5、查看这些东西是为了恢复数据，而不是为了好玩。所以我们最中还是为了要导入结果到MYSQL中。

D:\LAMP\MYSQL5\data>mysqlbinlog --start-position=134 --stop-position=330 yuelian
gdao_binglog.000001 | mysql -uroot -p

或者

D:\LAMP\MYSQL5\data>mysqlbinlog --start-position=134 --stop-position=330 yuelian
gdao_binglog.000001 >test1.txt

进入MYSQL导入

mysql> source c:\\test1.txt
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Database changed
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Charset changed
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.03 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)

6、查看数据：

mysql> show tables;
+----------------+
| Tables_in_test |
+----------------+
| a1 |
+----------------+
1 row in set (0.01 sec)
mysql> select * from a1;
+----+-------------+
| id | str |
+----+-------------+
| 1 | I love you |
| 2 | You love me |
+----+-------------+
2 rows in set (0.00 sec)

将一个mysqlbinlog文件导为sql文件

cd cd /usr/local/mysql
./mysqlbinlog /usr/local/mysql/data/mysql-bin.000001 > /opt/001.sql

将mysql-bin.000001日志文件导成001.sql

可以在mysqlbinlog语句中通过--start-date和--stop-date选项指定DATETIME格式的起止时间

./mysqlbinlog --stop-date="2009-04-10 17:41:28" /usr/local/mysql/data/mysql-bin.000002 > /opt/004.sql

将mysql-bin.000002文件中截止到2009-04-10 17:41:28的日志导成004.sql

./mysqlbinlog --start-date="2009-04-10 17:30:05" --stop-date="2009-04-10 17:41:28" /usr/local/mysql/data/mysql-bin.000002 /usr/local/mysql/data/mysql-bin.0000023> /opt/004.sql
----如果有多个binlog文件，中间用空格隔开，打上完全路径
./mysqlbinlog --start-date="2009-04-10 17:30:05" --stop-date="2009-04-10 17:41:28" /usr/local/mysql/data/mysql-bin.000002 |mysql -u root -p123456

或者 source /opt/004.sql
将mysql-bin.000002日志文件中从2009-04-10 17:30:05到2008-04-10 17:41:28截止的sql语句导入到mysql中

--转自