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Last_Errno: 1062,Last_Error: Error 'Duplicate entry '...' for key 'PRIMARY'' on query. 的详细分析过程

2015-04-28 10:33 726 查看
线上环境我从来没有碰到过1062的问题,测试环境开发环境不停的出现类似问题,以往为了赶时间都是skip或者直接重新做,这会有时间,就好好去查查问题所在。

1 从库报错信息:
mysql> show slave status\G

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

               Slave_IO_State: Waiting for master to send event

                  Master_Host: xxxx0402.china.online.ea.com

                  Master_User: replication

                  Master_Port: 3306

                Connect_Retry: 60

              Master_Log_File: mysql-bin.000154

          Read_Master_Log_Pos: 56680675

               Relay_Log_File: mysql-relay-bin.000455

                Relay_Log_Pos: 33013454

        Relay_Master_Log_File: mysql-bin.000152

             Slave_IO_Running: Yes

            Slave_SQL_Running: No

              Replicate_Do_DB: 

          Replicate_Ignore_DB: 

           Replicate_Do_Table: 

       Replicate_Ignore_Table: 

      Replicate_Wild_Do_Table: 

  Replicate_Wild_Ignore_Table: 
                   Last_Errno: 1062
                   Last_Error: Error 'Duplicate entry '250.1.1-rding-changelogs/myIDENTITY/250/xxxx.xml' for key 'PRIMARY'' on query. Default database: 'identity'. Query: 'INSERT INTO `DATABASECHANGELOG` (`DATEEXECUTED`,
`AUTHOR`, `xxxx`, `DESCRIPTION`, `COMMENTS`, `MD5SUM`, `ID`, `FILENAME`) VALUES (NOW(), 'rding', '1.9.3', 'Custom SQL', '', '4ac9fbf5222bc344362ccdecbc072', '250.1.1', 'changelogs/myIDENTITY/250/xxxx.xml')'

                 Skip_Counter: 0

          Exec_Master_Log_Pos: 33013308

              Relay_Log_Space: 33020134

              Until_Condition: None

               Until_Log_File: 

                Until_Log_Pos: 0

           Master_SSL_Allowed: No

           Master_SSL_CA_File: 

           Master_SSL_CA_Path: 

              Master_SSL_Cert: 

            Master_SSL_Cipher: 

               Master_SSL_Key: 

        Seconds_Behind_Master: NULL

Master_SSL_Verify_Server_Cert: No

                Last_IO_Errno: 0

                Last_IO_Error: 

               Last_SQL_Errno: 1062

               Last_SQL_Error: Error 'Duplicate entry '250.1.1-rding-changelogs/myIDENTITY/250/xxxx.xml' for key 'PRIMARY'' on query. Default database: 'identity'. Query: 'INSERT INTO `DATABASECHANGELOG` (`DATEEXECUTED`, `AUTHOR`, `xxxx`, `DESCRIPTION`, `COMMENTS`,
`MD5SUM`, `ID`, `FILENAME`) VALUES (NOW(), 'rding', '1.9.3', 'Custom SQL', '', '4ac9fbf5222bc344362ccdecbc072', '250.1.1', 'changelogs/myIDENTITY/250/xxxx.xml')'

  Replicate_Ignore_Server_Ids: 

             Master_Server_Id: 1

1 row in set (0.00 sec)

2 看表结构

mysql> show create table DATABASECHANGELOG;

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

| Table             | Create Table                                                                                                                                                                                                                              
                                                                                                                                                                                                               |

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

| DATABASECHANGELOG | CREATE TABLE `databasechangelog` (

  `ID` varchar(63) NOT NULL,

  `AUTHOR` varchar(63) NOT NULL,

  `FILENAME` varchar(200) NOT NULL,

  `DATEEXECUTED` datetime NOT NULL,

  `MD5SUM` varchar(32) DEFAULT NULL,

  `DESCRIPTION` varchar(255) DEFAULT NULL,

  `COMMENTS` varchar(255) DEFAULT NULL,

  `TAG` varchar(255) DEFAULT NULL,

  `xxxx` varchar(10) DEFAULT NULL,

  PRIMARY KEY (`ID`,`AUTHOR`,`FILENAME`) 坑爹的表设计结构,不是我喜欢的风格

) ENGINE=InnoDB DEFAULT CHARSET=utf8 |

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

1 row in set (0.00 sec)

3 看已经存在的数据
mysql> select * from DATABASECHANGELOG  where AUTHOR ='rding';

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

| ID      | AUTHOR | FILENAME                                | DATEEXECUTED        | MD5SUM                           | DESCRIPTION | COMMENTS                                 | TAG  | xxxx |

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

| 250.1.1 | rding  | changelogs/myIDENTITY/250/xxxx.xml | 2013-08-12 20:41:22 | 4ac9fbf5222bc344362ccdecbc072    | Custom SQL  |                                          | NULL | 1.9.3     |

| 250.1.2 | rding  | changelogs/myIDENTITY/250/xxxx.xml | 2013-08-12 20:41:22 | 8463e1cf4ba029e3ace675d3e69a71d2 | Custom SQL  | Create new table for email change record | NULL | 1.9.3     |

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

2 rows in set (0.00 sec)

4 看binlog,在Relay_Master_Log_File: mysql-bin.000152,去主库找这个binlog解析出来
解析

[root@xxxx0402 tmp]# mysqlbinlog mysql-bin.000152 > a152.log

搜索包含'rding'字符串的语句,因为这个是主键字段之一,所以检索起来应该比较容易。

[root@xxxx0402 tmp]# grep a152.log 'rding' > rd.log

grep: rding: No such file or directory

[root@xxxx0402 tmp]# grep  'rding' a152.log > rd.log

[root@xxxx0402 tmp]# ll

[root@xxxx0402 tmp]# more rd.log 

INSERT INTO `DATABASECHANGELOG` (`DATEEXECUTED`, `AUTHOR`, `xxxx`, `DESCRIPTION`, `COMMENTS`, `MD5SUM`, `ID`, `FILENAME`) VALUES (NOW(), 'rding', '1.9.3', 'Custom

 SQL', '', '4ac9fbf5222bc344362ccdecbc072', '250.1.1', 'changelogs/myIDENTITY/250/xxxx.xml')

INSERT INTO `DATABASECHANGELOG` (`DATEEXECUTED`, `AUTHOR`, `xxxx`, `DESCRIPTION`, `COMMENTS`, `MD5SUM`, `ID`, `FILENAME`) VALUES (NOW(), 'rding', '1.9.3', 'Custom

 SQL', 'Create new table for email change record', '8463e1cf4ba029e3ace675d3e69a71d2', '250.1.2', 'changelogs/myIDENTITY/250/xxxx.xml')
主库上面只有一条insert sql语句。

5 再去看从库的relay log日志Relay_Log_File: mysql-relay-bin.000455
[root@eanshlt2mydbc004db002 data]# cp mysql-relay-bin.000455 /tmp

[root@eanshlt2mydbc004db002 data]# cd /tmp

[root@eanshlt2mydbc004db002 tmp]# mysqlbinlog mysql-relay-bin.000455 > relay.log

[root@eanshlt2mydbc004db002 tmp]# 

[root@eanshlt2mydbc004db002 tmp]# grep  'rding' relay.log > rd.log

[root@eanshlt2mydbc004db002 tmp]# more rd.log

INSERT INTO `DATABASECHANGELOG` (`DATEEXECUTED`, `AUTHOR`, `xxxx`, `DESCRIPTION`, `COMMENTS`, `MD5SUM`, `ID`, `FILENAME`) VALUES (NOW(), 'rding', '1.9.3', 'Custom

 SQL', '', '4ac9fbf5222bc344362ccdecbc072', '250.1.1', 'changelogs/myIDENTITY/250/xxxx.xml')

INSERT INTO `DATABASECHANGELOG` (`DATEEXECUTED`, `AUTHOR`, `xxxx`, `DESCRIPTION`, `COMMENTS`, `MD5SUM`, `ID`, `FILENAME`) VALUES (NOW(), 'rding', '1.9.3', 'Custom

 SQL', 'Create new table for email change record', '8463e1cf4ba029e3ace675d3e69a71d2', '250.1.2', 'changelogs/myIDENTITY/250/xxxx.xml')

奇怪了,2边的都是一样子的。这个错误怎么判断?
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6 去看下主从关于这个数据记录的录入时间。
从库上面:
mysql> select * from DATABASECHANGELOG where AUTHOR='rding' and ID='250.1.1' and FILENAME='changelogs/myIDENTITY/250/xxxx.xml'\G;

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

          ID: 250.1.1

      AUTHOR: rding

    FILENAME: changelogs/myIDENTITY/250/xxxx.xml

DATEEXECUTED: 2013-08-12 20:41:22

      MD5SUM: 4ac9fbf5222bc344362ccdecbc072

 DESCRIPTION: Custom SQL

    COMMENTS: 

         TAG: NULL

   xxxx: 1.9.3

1 row in set (0.00 sec)

ERROR: 

No query specified

mysql> 

主库上面 :
mysql> select * from DATABASECHANGELOG where AUTHOR='rding' and ID='250.1.1' and FILENAME='changelogs/myIDENTITY/250/xxxx.xml'\G;

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

          ID: 250.1.1

      AUTHOR: rding

    FILENAME: changelogs/myIDENTITY/250/xxxx.xml

DATEEXECUTED: 2013-08-12 19:54:29

      MD5SUM: 4ac9fbf5222bc344362ccdecbc072

 DESCRIPTION: Custom SQL

    COMMENTS: 

         TAG: NULL

   xxxx: 1.9.3

1 row in set (0.02 sec)

ERROR: 

No query specified

mysql> 
看DATEEXECUTED时间字段都是8月12日录入的,可惜我的db server由于磁盘有限,只保存了近期的binlog,而且现在主库上面最早的binlog就是出错的那个mysql-bin.000152

7 最后一招,去看从库的binlog,看是否近期有人insert了这条记录
[root@eanshlt2mydbc004db002 data]# cp mysql-bin.004* /tmp/

[root@eanshlt2mydbc004db002 tmp]# mysqlbinlog mysql-bin.004268 > 1.log

[root@eanshlt2mydbc004db002 tmp]# grep  'rding' 1.log > rd1.log

[root@eanshlt2mydbc004db002 tmp]# ll rd1.log

-rw-r--r-- 1 root root 0 Sep  3 17:47 rd1.log
空的,第一个日志没有录入操作

[root@eanshlt2mydbc004db002 tmp]# mysqlbinlog mysql-bin.004269 > 2.log

[root@eanshlt2mydbc004db002 tmp]# grep  'rding' 2.log > rd2.log

[root@eanshlt2mydbc004db002 tmp]# ll rd2.log

-rw-r--r-- 1 root root 0 Sep  3 17:48 rd2.log

[root@eanshlt2mydbc004db002 tmp]# 
空的,第二个日志没有录入操作

[root@eanshlt2mydbc004db002 tmp]# mysqlbinlog mysql-bin.004270 > 3.log

[root@eanshlt2mydbc004db002 tmp]# grep  'rding'  3.log > rd3.log

[root@eanshlt2mydbc004db002 tmp]# ll rd3.log

-rw-r--r-- 1 root root 0 Sep  3 17:49 rd3.log

[root@eanshlt2mydbc004db002 tmp]# 
空的,第三个日志没有录入操作

[root@eanshlt2mydbc004db002 tmp]# mysqlbinlog mysql-bin.004271 > 4.log
ERROR: Error in Log_event::read_log_event(): 'read error', data_len: 438, event_type: 2
[root@eanshlt2mydbc004db002 tmp]# grep  'rding' 4.log > rd4.log

[root@eanshlt2mydbc004db002 tmp]# ll rd4.log

-rw-r--r-- 1 root root 0 Sep  3 17:50 rd4.log
空的,第四个日志没有录入操作

这里解析报错了,解决方案,记录在如此

 http://blog.csdn.net/mchdba/article/details/11011229

[root@eanshlt2mydbc004db002 tmp]# mysqlbinlog mysql-bin.004272 > 5.log

[root@eanshlt2mydbc004db002 tmp]# grep  'rding' 5.log > rd5.log

[root@eanshlt2mydbc004db002 tmp]# ll rd5.log

-rw-r--r-- 1 root root 0 Sep  3 18:07 rd5.log

[root@eanshlt2mydbc004db002 tmp]# 
空的,第五个日志没有录入操作

解析了从库的5个日志,都没有看到这条纪律的insert操作,问题到此卡住了,原因何在?这边开发的兄弟们已经在催了,我只要skip之后从库重新做了。


mysql> stop slave;

set global sql_slave_skip_counter=1;

start slave;

show slave status\G

Query OK, 0 rows affected (0.09 sec)

mysql> set global sql_slave_skip_counter=1;

Query OK, 0 rows affected (0.00 sec)

mysql> start slave;

Query OK, 0 rows affected (0.00 sec)

mysql> show slave status\G

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

               Slave_IO_State: Waiting for master to send event

                  Master_Host: xxxx0402.china.online.ea.com

                  Master_User: replication

                  Master_Port: 3306

                Connect_Retry: 60

              Master_Log_File: mysql-bin.000184

          Read_Master_Log_Pos: 27865900

               Relay_Log_File: mysql-relay-bin.000495

                Relay_Log_Pos: 253

        Relay_Master_Log_File: mysql-bin.000171

             Slave_IO_Running: Yes

            Slave_SQL_Running: Yes

              Replicate_Do_DB: 

          Replicate_Ignore_DB: 

           Replicate_Do_Table: 

       Replicate_Ignore_Table: 

      Replicate_Wild_Do_Table: 

  Replicate_Wild_Ignore_Table: 

                   Last_Errno: 0

                   Last_Error: 

                 Skip_Counter: 0

          Exec_Master_Log_Pos: 107

              Relay_Log_Space: 8000

              Until_Condition: None

               Until_Log_File: 

                Until_Log_Pos: 0

           Master_SSL_Allowed: No

           Master_SSL_CA_File: 

           Master_SSL_CA_Path: 

              Master_SSL_Cert: 

            Master_SSL_Cipher: 

               Master_SSL_Key: 
        Seconds_Behind_Master: 3434734
Master_SSL_Verify_Server_Cert: No

                Last_IO_Errno: 0

                Last_IO_Error: 

               Last_SQL_Errno: 0

               Last_SQL_Error: 

  Replicate_Ignore_Server_Ids: 

             Master_Server_Id: 1

1 row in set (0.11 sec)

mysql> 
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