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  • mysql主从复制问题之主从两端binlog日志不同步解决方案

    主操作:

    1. 进入主的数据库查看状态:

    mysql> show master statusG;

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

    File: mysql-bin.000001

    Position: 604

    Binlog_Do_DB:

    Binlog_Ignore_DB:

    1 row in set (0.01 sec)

    从操作:

    1. 进入从的数据库查看状态:

    mysql> show slave statusG;

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

    Slave_IO_State:

    Master_Host: 192.168.1.187

    Master_User: slave001

    Master_Port: 3306

    Connect_Retry: 60

    Master_Log_File: mysql-bin.000001

    Read_Master_Log_Pos: 800

    Relay_Log_File: mysqld-relay-bin.000001

    Relay_Log_Pos: 4

    Relay_Master_Log_File: mysql-bin.000001

    Slave_IO_Running: No

    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: 800

    Relay_Log_Space: 106

    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: 1236

    Last_IO_Error: Got fatal error 1236 from master when reading data from binary log: 'Client requested master to start replication from impossible position'

    Last_SQL_Errno: 0

    Last_SQL_Error:

    1 row in set (0.00 sec)

    会发现从状态与主状态不一样(主要观察Master_Log_File和Read_Master_Log_Pos),就是binlog日志不同步

    1. 现在需要使主从的数据先同步,然后再使binlog日志同步方能解决问题

    (1).把主数据库停止更新,查看binlog(file和positon),打包放到从服务器上恢复

    (2).停止从的slave,修改binlog(依据查看主的file和position),然后启动slave,最后把主的锁解除

    具体操作已在《mysql主从同步配置》中做详细说明,可前往查看

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  • 原文地址:https://www.cnblogs.com/gpfeisoft/p/6041331.html
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