MySQL5.7主從同步Slave I/O錯誤解決方法

MySQL5.7主從同步出現以下error： [ERROR] Slave I/O for channel ‘’: Master command COM_REGISTER_SLAVE failed: Access denied for user ‘sync’@’%’ (using password: YES) (Errno: 1045), Error_code: 1597 解決方法：修改主的授權→G

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