How to exit/terminate a job earlier and handle the raised exception in apscheduler?

How to exit/terminate a job earlier and handle the raised exception in apscheduler?

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How to exit/terminate a job earlier and handle the raised exception in apscheduler?
Tag : python , By : m0gb0y74
Date : November 27 2020, 03:01 PM

To fix the issue you can do Don't ever, ever use sys.exit within a job. Raise exceptions instead. If you don't want APScheduler to handle exceptions, handle them yourself before APScheduler.
I assume you are using a ThreadPool executor (which is the default). Within a thread, sys.exit raises a SystemExit error. This is what APScheduler caught according to your logs, this is 100% normal. APScheduler will always try to catch and log any exception coming from your job (to avoid loosing the underlying thread/process). Even a sys.exit(0) is abnormal in a job: APScheduler expects you to end the job by letting the job's function return without throwing any exception.
class StopJob(BaseException):

def print_header():
    if not proc_is_running(DB['process_name']):
        raise StopJob('DB process <{0}> is NOT running.'.format(DB['process_name']))


def make_db_snapshot(dataset, args):
        do_stuff(dataset, args)
    except StopJob:
        logger.exception('Stopping job.')
        # APScheduler won't notice the exception because it is handled, but it will be logged anyways.

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Is there a way to prevent a SystemExit exception raised from sys.exit() from being caught?

Tag : python , By : user116330
Date : March 29 2020, 07:55 AM
Does that help You can call os._exit() to directly exit, without throwing an exception:
import os

Setting exit code in Python when an exception is raised

Tag : python , By : damomurf
Date : March 29 2020, 07:55 AM
Any of those help Take a look at the traceback module. You could do the following:
import sys, traceback

  raise Exception()

How to handle a custom exception raised inside an exception handler?

Tag : python , By : user107506
Date : March 29 2020, 07:55 AM
seems to work fine Once an exception gets caught by an except clause, any subsequent excepts in the same block are ignored, so you can't do that:
except Something:
   raise MyError
except MyError: <-- won't work!

    except Something:
       raise MyError

except MyError: <-- will work
  raise CustomIOError
except IOError: <-- works
# higher-level code

class UserInterface:

     def writeButtonClick:
        except ReadAndWriteFailure:
            showMessage("Problem! Please try again") 

# lower-level code

class ReadAndWriteFailure(Exception):

def readAndWrite():
       fp = open(someFile)
       db = sql.connection()
       for line in fp:
   except IOError:
      log it
      raise ReadAndWriteFailure()
   except SQLError:
      log it
      raise ReadAndWriteFailure()

How to efficiently exit a python program if any exception is raised/caught

Tag : python , By : rajiv
Date : March 29 2020, 07:55 AM
it should still fix some issue Say I have a block of exception statements: , One thing you could do is:
flag = False

    flag = True
except err1:
    #process error
except err10:
    #process error
if not flag:
    sys.exit(1) #exit program

kazoo DataWatch does not exit the program when exception is raised

Tag : python , By : user185939
Date : March 29 2020, 07:55 AM
should help you out DataWatch is run in a separate thread and there are specific ways to kill the main process from a thread, see Why does sys.exit() not exit when called inside a thread in Python?
Something like os._exit() does work.
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