如果我添加'log =“testfile_log.log”'，mysql 服务器初始化会出现错误

Question

伙计们，我只是想设置我的常规日志文件，就像这里一样https://stackoverflow.com/questions/5441972/how-to-see-log-files-in-mysql。

所以我将log = "testfile_log.log"下面的内容添加到 my.ini 中

# The MySQL server
[mysqld]
port= 3306
...
log_error = "mysql_error.log"
log = "testfile_log.log"

但由于某种原因，mysql 服务器不再启动。以下是日志：

8:46:14 PM  [mysql]     Error: MySQL shutdown unexpectedly.
8:46:14 PM  [mysql]     This may be due to a blocked port, missing dependencies, 
8:46:14 PM  [mysql]     improper privileges, a crash, or a shutdown by another method.
8:46:14 PM  [mysql]     Press the Logs button to view error logs and check
8:46:14 PM  [mysql]     the Windows Event Viewer for more clues
8:46:14 PM  [mysql]     If you need more help, copy and post this
8:46:14 PM  [mysql]     entire log window on the forums

我知道它与 bcs 有关，log = "testfile_log.log"如果我把它拿掉，它就会起作用。