查看binlog文件的2种方式

时间：2021-09-03 10:27:56

1.使用show binlog events

a.获取binlog文件列表

mysql> show binary logs;

+------------------+-----------+

| Log_name         | File_size |

+------------------+-----------+

| mysql-bin.000005 |      1288 |

| mysql-bin.000006 |       120 |

+------------------+-----------+

mysql>

b.查看当前正在写入的binlog文件

mysql> show master status\G;

*************************** 1. row ***************************

             File: mysql-bin.000006

         Position: 120

c.查看指定binlog文件的内容语法：

SHOW BINLOG EVENTS [IN 'log_name'] [FROM pos] [LIMIT [offset,] row_count]

1.演示查看一个二进制文件中全部事务

注：binlog文件实际上是由一连串的event组成的一个组，即事务组。

mysql> SHOW BINLOG EVENTS IN 'mysql-bin.000005' \G

*************************** 1. row ***************************  一个row代表一个事务组

   Log_name: mysql-bin.000005

        Pos: 4

 Event_type: Format_desc

  Server_id: 1

End_log_pos: 120

       Info: Server ver: 5.6.29-log, Binlog ver: 4

*************************** 2. row ***************************

   Log_name: mysql-bin.000005

        Pos: 120

 Event_type: Query

  Server_id: 1

End_log_pos: 194

       Info: BEGIN

2.演示对一个二进制文件的事务做过滤查询

mysql> SHOW BINLOG EVENTS IN 'mysql-bin.000005' FROM 194 LIMIT 2 \G;

*************************** 1. row ***************************

   Log_name: mysql-bin.000005

        Pos: 194

 Event_type: Query

  Server_id: 1

End_log_pos: 319

       Info: use `tpcc`; UPDATE warehouse SET w_ytd = w_ytd + 3232 WHERE w_id = 1

*************************** 2. row ***************************

   Log_name: mysql-bin.000005

        Pos: 319

 Event_type: Query

  Server_id: 1

End_log_pos: 458

       Info: use `tpcc`; UPDATE district SET d_ytd = d_ytd + 3232 WHERE d_w_id = 1 AND d_id = 3

2 rows in set (0.00 sec)

mysql>

2.使用mysqlbinlog查看binlog（转：http://blog.csdn.net/leshami/article/details/41962243）

a、提取指定的binlog日志

# mysqlbinlog /opt/data/APP01bin.000001

# mysqlbinlog /opt/data/APP01bin.000001|grep insert

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

insert into tb values(2,'jack')  

b、提取指定position位置的binlog日志

# mysqlbinlog --start-position="120" --stop-position="332" /opt/data/APP01bin.000001  

c、提取指定position位置的binlog日志并输出到压缩文件

# mysqlbinlog --start-position="120" --stop-position="332" /opt/data/APP01bin.000001 |gzip >extra_01.sql.gz  

d、提取指定position位置的binlog日志导入数据库

# mysqlbinlog --start-position="120" --stop-position="332" /opt/data/APP01bin.000001 | mysql -uroot -p  

e、提取指定开始时间的binlog并输出到日志文件

# mysqlbinlog --start-datetime="2014-12-15 20:15:23" /opt/data/APP01bin.000002 --result-file=extra02.sql  

f、提取指定位置的多个binlog日志文件

# mysqlbinlog --start-position="120" --stop-position="332" /opt/data/APP01bin.000001 /opt/data/APP01bin.000002|more  

g、提取指定数据库binlog并转换字符集到UTF8

# mysqlbinlog --database=test --set-charset=utf8 /opt/data/APP01bin.000001 /opt/data/APP01bin.000002 >test.sql  

h、远程提取日志，指定结束时间

# mysqlbinlog -urobin -p -h192.168.1.116 -P3306 --stop-datetime="2014-12-15 20:30:23" --read-from-remote-server mysql-bin.000033 |more  

i、远程提取使用row格式的binlog日志并输出到本地文件

# mysqlbinlog -urobin -p -P3606 -h192.168.1.177 --read-from-remote-server -vv inst3606bin.000005 >row.sql

3.mysqlbinlog 查看row模式的binlog 

当bin-log的模式设置为row时（binlog_format=row），查看执行的sql时也稍微麻烦一点，默认解析出来的结果是这样的

-bash-4.1$ /opt/mysql/bin/mysqlbinlog    /opt/mysql/var/mysql-bin.000004|more

/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;

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

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

DELIMITER /*!*/;

# at 4

#160614 23:18:20 server id 1  end_log_pos 120 CRC32 0xbb07feb7  Start: binlog v 4, server v 5.6.14-log created 160614 23:18:20 at startup

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

ROLLBACK/*!*/;

BINLOG '

PCBgVw8BAAAAdAAAAHgAAAABAAQANS42LjE0LWxvZwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

AAAAAAAAAAAAAAAAAAA8IGBXEzgNAAgAEgAEBAQEEgAAXAAEGggAAAAICAgCAAAACgoKGRkAAbf+

B7s=

'/*!*/;

完全看不懂，这时需要添加参数（--base64-output=decode-rows -v）对输出结果解码。

-bash-4.1$ /opt/mysql/bin/mysqlbinlog  --base64-output=decode-rows -v  /opt/mysql/var/mysql-bin.000004|more

/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;

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

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

DELIMITER /*!*/;

# at 4

#160614 23:18:20 server id 1  end_log_pos 120 CRC32 0xbb07feb7  Start: binlog v 4, server v 5.6.14-log created 160614 23:18:20 at startup

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

ROLLBACK/*!*/;

# at 120

#160615 10:46:11 server id 1  end_log_pos 195 CRC32 0x9579c284  Query   thread_id=5     exec_time=0     error_code=0

SET TIMESTAMP=1465958771/*!*/;

SET @@session.pseudo_thread_id=5/*!*/;

SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=0, @@session.unique_checks=1, @@session.autocommit=1/*!*/;

SET @@session.sql_mode=1073741824/*!*/;

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 195

#160615 10:46:11 server id 1  end_log_pos 300 CRC32 0xfadf2614  Table_map: `dentist`.`ds_case_no_type` mapped to number 93

# at 300

#160615 10:46:11 server id 1  end_log_pos 690 CRC32 0x210669fe  Update_rows: table id 93 flags: STMT_END_F

### UPDATE `dentist`.`ds_case_no_type`

### WHERE

###   @1='736666419b3a40d9b384a03311baf2be'

###   @2='5'

###   @3=NULL

###   @4=NULL

###   @5='88'

###   @6='66'

###   @7='1500000000'

###   @8='1500000006'

###   @9=NULL

###   @10='0'

###   @11=NULL

###   @12='c9c8d05d4d3b44379598dde5d02f1552'

###   @13='2016-06-07 17:03:57'

###   @14='c9c8d05d4d3b44379598dde5d02f1552'

###   @15='2016-06-12 13:17:33'

###   @16='67e05761a61243b68e4b259386dc0dc8'

### SET

###   @1='736666419b3a40d9b384a03311baf2be'

###   @2='5'

###   @3=NULL

###   @4=NULL

###   @5='88'

###   @6='66'

###   @7='1500000000'

###   @8='1500000007'

###   @9=NULL

###   @10='0'

###   @11=NULL

###   @12='c9c8d05d4d3b44379598dde5d02f1552'

###   @13='2016-06-07 17:03:57'

###   @14='c9c8d05d4d3b44379598dde5d02f1552'

###   @15='2016-06-12 13:17:33'

###   @16='67e05761a61243b68e4b259386dc0dc8'

# at 690

#160615 10:46:11 server id 1  end_log_pos 721 CRC32 0x70d0f695  Xid = 699

COMMIT/*!*/;

# at 721

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