class_docstr: A monitor process for monitoring worker log files.
code: def stop_log_monitor(log_path, logger_thread, thread_stopped):
      thread_stopped.set()
      logger_thread.join()
      thread_stopped.clear()
      if os.path.exists(log_path):
          try:
              os.remove(log_path)
          except Exception as e:
              print(e)
  
file_path: BigDL/python/orca/src/bigdl/orca/learn/log_monitor.py
imports: import logging
  import os
  import time
  from bigdl.dllib.utils.log4Error import *
label_desc: Use image node_id 7 for calling the LogMonitor obj's underlying member method code with example usage: obj.stop_log_monitor(log_path, logger_thread, thread_stopped) without return types