在binlog文件中有时候打印出来的标准时间并不足以确定一个问题，有时候会出现一个一些特殊的数字代表，无法具体理解其具体数字细节代表的意义；为处理类似的情况，可以通过使用--hexdump来打印出相关的事件的详情；
以下是案例如：
[root@Slave02 data]# mysqlbinlog --hexdump /usr/local/mysql/data/mysql-bin.000011 /*!40019 SET @@session.max_insert_delayed_threads=0*/; /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/; DELIMITER /*!*/; # at 4 #130401 9:38:04 server id 11 end_log_pos 107 # Position Timestamp Type Master ID Size Master Pos Flags # 00000004 fc e4 58 51 0f 0b 00 00 00 67 00 00 00 6b 00 00 00 01 00 # 00000017 04 00 35 2e 35 2e 31 33 2d 6c 6f 67 00 00 00 00 |..5.5.13.log....| # 00000027 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| # 00000037 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| # 00000047 00 00 00 00 fc e4 58 51 13 38 0d 00 08 00 12 00 |......XQ.8......| # 00000057 04 04 04 04 12 00 00 54 00 04 1a 08 00 00 00 08 |.......T........| # 00000067 08 08 02 00 |....| # Start: binlog v 4, server v 5.5.13-log created 130401 9:38:04 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*/; [root@Slave02 data]# mysqlbinlog --hexdump /usr/local/mysql/data/mysql-bin.0000 12 /*!40019 SET @@session.max_insert_delayed_threads=0*/; /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/; DELIMITER /*!*/; # at 4 #130402 9:28:54 server id 11 end_log_pos 107 # Position Timestamp Type Master ID Size Master Pos Flags # 00000004 56 34 5a 51 0f 0b 00 00 00 67 00 00 00 6b 00 00 00 01 00 # 00000017 04 00 35 2e 35 2e 31 33 2d 6c 6f 67 00 00 00 00 |..5.5.13.log....| # 00000027 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| # 00000037 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| # 00000047 00 00 00 00 56 34 5a 51 13 38 0d 00 08 00 12 00 |....V4ZQ.8......| # 00000057 04 04 04 04 12 00 00 54 00 04 1a 08 00 00 00 08 |.......T........| # 00000067 08 08 02 00 |....| # Start: binlog v 4, server v 5.5.13-log created 130402 9:28:54 at startup # Warning: this binlog was not closed properly. Most probably mysqld crashed writing it. ROLLBACK/*!*/; # at 107 #130402 15:45:51 server id 11 end_log_pos 367 # Position Timestamp Type Master ID Size Master Pos Flags # 0000006b af 8c 5a 51 02 0b 00 00 00 04 01 00 00 6f 01 00 00 00 00 # 0000007e 01 00 00 00 00 00 00 00 04 00 00 1a 00 00 00 00 |................| # 0000008e 00 00 01 00 00 00 00 00 00 00 00 06 03 73 74 64 |.............std| # 0000009e 04 21 00 21 00 21 00 74 65 73 74 00 63 72 65 61 |.......test.crea| # 000000ae 74 65 20 74 61 62 6c 65 20 69 74 65 6d 73 28 0a |te.table.items..| # 000000be 69 64 20 69 6e 74 20 6e 6f 74 20 6e 75 6c 6c 20 |id.int.not.null.| # 000000ce 61 75 74 6f 5f 69 6e 63 72 65 6d 65 6e 74 20 70 |auto.increment.p| # 000000de 72 69 6d 61 72 79 20 6b 65 79 2c 0a 73 68 6f 72 |rimary.key..shor| # 000000ee 74 5f 64 65 73 63 72 69 70 74 69 6f 6e 20 76 61 |t.description.va| # 000000fe 72 63 68 61 72 28 32 35 35 29 2c 0a 64 65 73 63 |rchar.255...desc| # 0000010e 72 69 70 74 69 6f 6e 20 74 65 78 74 2c 0a 65 78 |ription.text..ex| # 0000011e 61 6d 70 6c 65 20 74 65 78 74 2c 0a 65 78 70 6c |ample.text..expl| # 0000012e 61 6e 61 74 69 6f 6e 20 74 65 78 74 2c 0a 61 64 |anation.text..ad| # 0000013e 64 69 74 69 6f 6e 61 6c 20 74 65 78 74 29 20 65 |ditional.text..e| # 0000014e 6e 67 69 6e 65 3d 69 6e 6e 6f 64 62 20 64 65 66 |ngine.innodb.def| # 0000015e 61 75 6c 74 20 63 68 61 72 73 65 74 3d 75 74 66 |ault.charset.utf| # 0000016e 38 |8| # Query thread_id=1 exec_time=0 error_code=0 use test/*!*/; SET TIMESTAMP=1364888751/*!*/; SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=0, @@session.unique_checks=1/*!*/; SET @@session.sql_mode=0/*!*/; /*!\C utf8 *//*!*/; SET @@session.character_set_client=33,@@session.collation_connection=33,@@session.collation_server=33/*!*/; create table items( id int not null auto_increment primary key, short_description varchar(255), description text, example text, explanation text, additional text) engine=innodb default charset=utf8 /*!*/; # at 367 #130402 16:57:39 server id 11 end_log_pos 435 # Position Timestamp Type Master ID Size Master Pos Flags # 0000016f 83 9d 5a 51 02 0b 00 00 00 44 00 00 00 b3 01 00 00 08 00 # 00000182 01 00 00 00 00 00 00 00 04 00 00 1a 00 00 00 00 |................| # 00000192 00 00 01 00 00 00 00 00 00 00 00 06 03 73 74 64 |.............std| # 000001a2 04 21 00 21 00 21 00 74 65 73 74 00 42 45 47 49 |.......test.BEGI| # 000001b2 4e |N| # Query thread_id=1 exec_time=0 error_code=0 SET TIMESTAMP=1364893059/*!*/; BEGIN /*!*/; # at 435 #130402 16:57:39 server id 11 end_log_pos 528 # Position Timestamp Type Master ID Size Master Pos Flags # 000001b3 83 9d 5a 51 02 0b 00 00 00 5d 00 00 00 10 02 00 00 00 00 # 000001c6 01 00 00 00 00 00 00 00 04 00 00 1a 00 00 00 00 |................| # 000001d6 00 00 01 00 00 00 00 00 00 00 00 06 03 73 74 64 |.............std| # 000001e6 04 21 00 21 00 21 00 74 65 73 74 00 64 65 6c 65 |.......test.dele| # 000001f6 74 65 20 66 72 6f 6d 20 20 74 31 2c 74 32 20 75 |te.from..t1.t2.u| # 00000206 73 69 6e 67 20 74 31 2c 74 32 |sing.t1.t2| # Query thread_id=1 exec_time=0 error_code=0 SET TIMESTAMP=1364893059/*!*/; delete from t1,t2 using t1,t2 /*!*/; # at 528 #130402 16:57:39 server id 11 end_log_pos 597 # Position Timestamp Type Master ID Size Master Pos Flags # 00000210 83 9d 5a 51 02 0b 00 00 00 45 00 00 00 55 02 00 00 08 00 # 00000223 01 00 00 00 00 00 00 00 04 00 00 1a 00 00 00 00 |................| # 00000233 00 00 01 00 00 00 00 00 00 00 00 06 03 73 74 64 |.............std| # 00000243 04 21 00 21 00 21 00 74 65 73 74 00 43 4f 4d 4d |.......test.COMM| # 00000253 49 54 |IT| # Query thread_id=1 exec_time=0 error_code=0 SET TIMESTAMP=1364893059/*!*/; COMMIT /*!*/; DELIMITER ; # End of log file ROLLBACK /* added by mysqlbinlog */; /*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/; [root@Slave02 data]#
可以看到一些信息和事件的特定的信息被分成两行，而他们被合并在正常的输出中显示出来；