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python3 multiprocessing Process ExitCode -9

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0

I am having an intermittent error.
I am writing a producer-consumer pattern where I would create multiple processes, and add them to a list.

 consumers = []
 for i in range(cpu_count()):
 p = Process(target=self.__execute_process, args=(queue, lock))

 # This is critical! The consumer function has an infinite loop
 # Which means it will never exit unless we set daemon to true
 p.daemon = True
 consumers.append(p)

Then, I would start all of them.

 for c in consumers:
 c.start()
 pass

After I am done pushing jobs to the Queue object. I would join all of them with a log statement.

 for c in consumers: # to check if all consumers are done processing it
 self._logger.info('joining consumers: . exit_code: '.format(c.pid, c.exitcode))
 c.join()
 pass

Sometimes, 1 of the processes has the exit_code of -9. I tried to add capture all exceptions with BaseException, but none of them are captured.

When I googled it, I couldn't find anything about them. Has anyone experienced anything similar?

python-3.x multiprocessing

share|improve this question

asked Mar 25 at 17:55

williamwilliam

2,8761515 gold badges5454 silver badges9191 bronze badges

add a comment | 

0

I am having an intermittent error.
I am writing a producer-consumer pattern where I would create multiple processes, and add them to a list.

 consumers = []
 for i in range(cpu_count()):
 p = Process(target=self.__execute_process, args=(queue, lock))

 # This is critical! The consumer function has an infinite loop
 # Which means it will never exit unless we set daemon to true
 p.daemon = True
 consumers.append(p)

Then, I would start all of them.

 for c in consumers:
 c.start()
 pass

After I am done pushing jobs to the Queue object. I would join all of them with a log statement.

 for c in consumers: # to check if all consumers are done processing it
 self._logger.info('joining consumers: . exit_code: '.format(c.pid, c.exitcode))
 c.join()
 pass

Sometimes, 1 of the processes has the exit_code of -9. I tried to add capture all exceptions with BaseException, but none of them are captured.

When I googled it, I couldn't find anything about them. Has anyone experienced anything similar?

python-3.x multiprocessing

share|improve this question

asked Mar 25 at 17:55

williamwilliam

2,8761515 gold badges5454 silver badges9191 bronze badges

add a comment | 

I am having an intermittent error.
I am writing a producer-consumer pattern where I would create multiple processes, and add them to a list.

 consumers = []
 for i in range(cpu_count()):
 p = Process(target=self.__execute_process, args=(queue, lock))

 # This is critical! The consumer function has an infinite loop
 # Which means it will never exit unless we set daemon to true
 p.daemon = True
 consumers.append(p)

Then, I would start all of them.

 for c in consumers:
 c.start()
 pass

After I am done pushing jobs to the Queue object. I would join all of them with a log statement.

 for c in consumers: # to check if all consumers are done processing it
 self._logger.info('joining consumers: . exit_code: '.format(c.pid, c.exitcode))
 c.join()
 pass

Sometimes, 1 of the processes has the exit_code of -9. I tried to add capture all exceptions with BaseException, but none of them are captured.

When I googled it, I couldn't find anything about them. Has anyone experienced anything similar?

python-3.x multiprocessing

share|improve this question

asked Mar 25 at 17:55

williamwilliam

2,8761515 gold badges5454 silver badges9191 bronze badges

 consumers = []
 for i in range(cpu_count()):
 p = Process(target=self.__execute_process, args=(queue, lock))

 # This is critical! The consumer function has an infinite loop
 # Which means it will never exit unless we set daemon to true
 p.daemon = True
 consumers.append(p)

 for c in consumers:
 c.start()
 pass

 for c in consumers: # to check if all consumers are done processing it
 self._logger.info('joining consumers: . exit_code: '.format(c.pid, c.exitcode))
 c.join()
 pass

share|improve this question

asked Mar 25 at 17:55

williamwilliam

2,8761515 gold badges5454 silver badges9191 bronze badges

share|improve this question

asked Mar 25 at 17:55

williamwilliam

2,8761515 gold badges5454 silver badges9191 bronze badges

asked Mar 25 at 17:55

williamwilliam

2,8761515 gold badges5454 silver badges9191 bronze badges

asked Mar 25 at 17:55

williamwilliam

2,8761515 gold badges5454 silver badges9191 bronze badges