Last_Errno: 1062,Last_Error: Error 'Duplicate entry &#

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Last_Errno: 1062,Last_Error: Error 'Duplicate entry &#

来源: 作者: 时间:2016-02-05 10:57 【

Last_Errno: 1062,Last_Error: Error #39;Duplicate entry #39;...#39; for key #39;PRIMARY#39;#39; on query.的详细分析过程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...
Last_Errno: 1062,Last_Error: Error 'Duplicate entry '...' for key 'PRIMARY'' on query.的详细分析过程
 
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`, `SUM`, `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

> 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
[[email protected] 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。
[[email protected] tmp]# grep a152.log 'rding' > rd.log
grep: rding: No such file or directory
[[email protected] tmp]# grep  'rding' a152.log > rd.log
[[email protected] tmp]# ll

[[email protected] 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
[[email protected] data]# cp mysql-relay-bin.000455 /tmp
[[email protected] data]# cd /tmp
[[email protected] tmp]# mysqlbinlog mysql-relay-bin.000455 > relay.log
[[email protected] tmp]# 
[[email protected] tmp]# grep  'rding' relay.log > rd.log
[[email protected] 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?
 
 
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
[[email protected] data]# cp mysql-bin.004* /tmp/
[[email protected] tmp]# mysqlbinlog mysql-bin.004268 > 1.log
[[email protected] tmp]# grep  'rding' 1.log > rd1.log
[[email protected] 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
[[email protected] tmp]# mysqlbinlog mysql-bin.004269 > 2.log
[[email protected] tmp]# grep  'rding' 2.log > rd2.log
[[email protected] tmp]# ll rd2.log
-rw-r--r-- 1 root root 0 Sep  3 17:48 rd2.log
[[email protected] tmp]# 

 

空的,第二个日志没有录入操作
[[email protected] tmp]# mysqlbinlog mysql-bin.004270 > 3.log
[[email protected] tmp]# grep  'rding'  3.log > rd3.log
[[email protected] tmp]# ll rd3.log
-rw-r--r-- 1 root root 0 Sep  3 17:49 rd3.log
[[email protected] tmp]# 

 

空的,第三个日志没有录入操作
 
[[email protected] tmp]# mysqlbinlog mysql-bin.004271 > 4.log
ERROR: Error in Log_event::read_log_event(): 'read error', data_len: 438, event_type: 2
[[email protected] tmp]# grep  'rding' 4.log > rd4.log
[[email protected] 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
[[email protected] tmp]# mysqlbinlog mysql-bin.004272 > 5.log
[[email protected] tmp]# grep  'rding' 5.log > rd5.log
[[email protected] tmp]# ll rd5.log
-rw-r--r-- 1 root root 0 Sep  3 18:07 rd5.log
[[email protected] 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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