code: def test_job_exit_exceptionally(self):
      port = get_free_tcp_port()
      master = Master(port=port)
      th = threading.Thread(target=master.run)
      th.start()
      time.sleep(1)
      worker1 = Worker("localhost:{}".format(port), 4)
      time.sleep(10)
      self.assertEqual(worker1.job_buffer.full(), True)
      time.sleep(1)
      self.assertEqual(master.cpu_num, 4)
      print("We are going to kill all the jobs.")
      if _IS_WINDOWS:
          command = r"""for /F "skip=2 tokens=2 delims=," %a in ('wmic process where "commandline like '%remote\\job.py%'" get processid^,status /format:csv') do taskkill /F /T /pid %a"""
          print(os.popen(command).read())
      else:
          command = "ps aux | grep remote/job.py | awk '{print $2}' | xargs kill -9"
          subprocess.call([command], shell=True)
      parl.connect("localhost:{}".format(port))
      actor = Actor()
      self.assertEqual(actor.add_one(1), 2)
      time.sleep(20)
  
      master.exit()
      worker1.exit()
  
imports: import unittest
  import parl
  from parl.remote.master import Master
  from parl.remote.worker import Worker
  from parl.remote.client import disconnect
  from parl.utils import logger, _IS_WINDOWS
  import os
  import threading
  import time
  import subprocess
  from parl.utils import get_free_tcp_port
label_desc: Use image node_id 2 for calling the TestJobAlone obj's underlying member method code with example usage: obj.test_job_exit_exceptionally() without return types