脚本宝典收集整理的这篇文章主要介绍了mysql主从同步问题整理，脚本宝典觉得挺不错的，现在分享给大家，也给大家做个参考。
今早MySQL同步失败,主数据库有530W而从数据库只有去350W,幸亏是做备份要不然这个就是个事故了.
问题如下:
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.
解决方法如下:
- 我尝试重新配置了下链接,
mysql> CHANGE MASTER TO
-> MASTER_HOST='master_host_name',
-> MASTER_USER='replication_user_name',
-> MASTER_PASSWORD='replication_password',
-> MASTER_LOG_FILE='recorded_log_file_name',
然后出现了,新的错误.
Slave_IO_Running: No
Slave_SQL_Running: Yes
Last_IO_Error: Got fatal error 1236 From master when reading data from binary log: 'Client requested master to start replication from position > file size'**- 后来我尝试了重新配置了position下位置
mysql> stop slave;
mysql> change master to master_log_file='mysql-bin.000011',master_log_pos=203;
mysql> start slave;
# 查看状态
show slave statusG Slave_IO_State: Waiting for master to send event
Master_Host: 121.196.207.230
Master_User: root
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000037
Read_Master_Log_Pos: 12367642
Relay_Log_File: DESKTOP-9EVDGPS-relay-bin.000002
Relay_Log_Pos: 127713
Relay_Master_Log_File: mysql-bin.000037
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
以上是脚本宝典为你收集整理的mysql主从同步问题整理全部内容，希望文章能够帮你解决mysql主从同步问题整理所遇到的问题。
本图文内容来源于网友网络收集整理提供，作为学习参考使用，版权属于原作者。
如您有任何意见或建议可联系处理。小编QQ：384754419，请注明来意。