当计算机突然关闭时,MySQL v5.1.61中继已损坏。我试图修复它,但是没有用。
- 我如何解决它?我做错什么了吗?
据我所知,损坏的MySQL中继日志很容易修复:
change master to master_log_file='<Relay_Master_Log_File>',
master_log_pos=<Exec_Master_Log_Pos>;
其中Relay_Master_Log_File
和按Exec_Master_Log_Pos
以下方式列出:
mysql> show slave status;
但是,当我这样做时change master status ...
,出现了主键冲突错误。那怎么可能?上面的过程不正确,还是缺少一些+1?
(目前,我只是将--master-data mysqldump从主服务器重新导入到从服务器,这解决了问题。但是,将来,这样做可能不合适。)
以下是有关我的特定问题的详细信息:
mysql> show slave status \G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: the-master-host
Master_User: replication
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000021
Read_Master_Log_Pos: 33639968
Relay_Log_File: mysql-relay-bin.000271
Relay_Log_Pos: 2031587
Relay_Master_Log_File: mysql-bin.000020
Slave_IO_Running: Yes
Slave_SQL_Running: No
Replicate_Do_DB: the_database
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 1594
Last_Error: Relay log read failure: Could not parse relay log event entry. The possible reasons are: the master's binary log is corrupted (you can check this by running 'mysqlbinlog' on the binary log), the slave's relay log is corrupted (you can check this by running 'mysqlbinlog' on the relay log), a network problem, or a bug in the master's or slave's MySQL code. If you want to check the master's binary log or slave's relay log, you will be able to know their names by issuing 'SHOW SLAVE STATUS' on this slave.
Skip_Counter: 0
Exec_Master_Log_Pos: 66395191
Relay_Log_Space: 36559177
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: 1594
Last_SQL_Error: Relay log read failure: Could not parse relay log event entry. The possible reasons are: the master's binary log is corrupted (you can check this by running 'mysqlbinlog' on the binary log), the slave's relay log is corrupted (you can check this by running 'mysqlbinlog' on the relay log), a network problem, or a bug in the master's or slave's MySQL code. If you want to check the master's binary log or slave's relay log, you will be able to know their names by issuing 'SHOW SLAVE STATUS' on this slave.
这就是我所做的:
mysql> stop slave;
mysql> reset slave;
mysql> change master to master_host='the-master-host', master_user='replication', master_password='the-password', master_log_file='mysql-bin.000020', master_log_pos=66395191;
mysql> start slave;
这就是发生的一个PK错误:
131122 15:17:29 [Note] Slave I/O thread: connected to master 'replication@the-master-host:3306',replication started in log 'mysql-bin.000020' at position 66395191
131122 15:17:29 [ERROR] Slave SQL: Error 'Duplicate entry '71373' for key 'PRIMARY'' on query. Default database: 'the_database'. Query: 'insert into ... values ...', Error_code: 1062
131122 15:17:29 [Warning] Slave: Data truncated for column 'date' at row 1 Error_code: 1265
131122 15:17:29 [Warning] Slave: Duplicate entry '71373' for key 'PRIMARY' Error_code: 1062
我想我遵循了推荐的过程(请参见下面的链接),仍然出现PK错误:-(?http: //bugs.mysql.com/bug.php? id= 26489,搜索“替代方法”。 //mhbarr.wordpress.com/2013/07/26/mysql-slave-corrupted-relay-log/ /programming//a/14438408
SET GLOBAL sql_slave_skip_counter = 1; START SLAVE;
跳过从属设备上的一个事件,并希望能对您有所帮助-有意义吗?如果没有帮助(如果仍然存在PK错误),我将--master-data
再次导入转储。