Log related issues

1. The log directory cannot be configured
2. The log file name should distinguish the year, month and day
3. Delete all log files in the log directory, new logs will not generate new log files, and log files will not be generated until 0:00 the next day
4. Delete all log files in the log directory, it will crash at 0 o'clock the next day, the cause of the crash is that the log file does not exist (it has been deleted)
5. There is no limit on the size of the log directory