XAMPP MySQL 意外关闭 - 日志中没有错误

Question

XAMPP 今天早上早些时候工作正常，但是在进行了一些 Wordpress 插件更新并与 Github 和 Pantheon 重新同步后，MySQL 现在将启动，运行几秒钟，然后关闭。在查看 mysql_error.log 时，我看到了这个：

InnoDB: using atomic writes.
2019-10-09 12:41:23 0 [Note] InnoDB: Mutexes and rw_locks use Windows interlocked functions
2019-10-09 12:41:23 0 [Note] InnoDB: Uses event mutexes
2019-10-09 12:41:23 0 [Note] InnoDB: Compressed tables use zlib 1.2.11
2019-10-09 12:41:23 0 [Note] InnoDB: Number of pools: 1
2019-10-09 12:41:23 0 [Note] InnoDB: Using SSE2 crc32 instructions
2019-10-09 12:41:23 0 [Note] InnoDB: Initializing buffer pool, total size = 16M, instances = 1, chunk size = 16M
2019-10-09 12:41:23 0 [Note] InnoDB: Completed initialization of buffer pool
2019-10-09 12:41:23 0 [Note] InnoDB: 128 out of 128 rollback segments are active.
2019-10-09 12:41:23 0 [Note] InnoDB: Creating shared tablespace for temporary tables
2019-10-09 12:41:23 0 [Note] InnoDB: Setting file 'C:\xampp\mysql\data\ibtmp1' size to 12 MB. Physically writing the file full; Please wait ...
2019-10-09 12:41:23 0 [Note] InnoDB: File 'C:\xampp\mysql\data\ibtmp1' size is now 12 MB.
2019-10-09 12:41:23 0 [Note] InnoDB: Waiting for purge to start
2019-10-09 12:41:23 0 [Note] InnoDB: 10.4.6 started; log sequence number 113917; transaction id 9
2019-10-09 12:41:23 0 [Note] InnoDB: Loading buffer pool(s) from C:\xampp\mysql\data\ib_buffer_pool
2019-10-09 12:41:23 0 [Note] Plugin 'FEEDBACK' is disabled.
2019-10-09 12:41:23 0 [Note] InnoDB: Buffer pool(s) load completed at 191009 12:41:23
2019-10-09 12:41:23 0 [Note] Server socket created on IP: '::'.

我没有看到任何明显的错误。

对于如何获得更详细的错误信息或如何解决此问题有任何想法吗？谢谢！

更新

在 Windows 事件查看器中，我能够得到以下错误描述：

Slave I/O: Fatal error: Invalid (empty) username when attempting to connect to the master server. Connection attempt terminated. Internal MariaDB error code: 1593

Answer 1

复制此文件：

aria_log.00000001
aria_log_control
ib_buffer_pool
ib_logfile0
ib_logfile1
ibdata1
ibtmp1
multi-master.info

来自：xampp\mysql\backup

到：xampp\mysql\data