Python apscheduler - skipped: maximum number of running instances reached

Python apscheduler - skipped: maximum number of running instances reached

The "maximum number of running instances reached" error in APScheduler typically occurs when you have exceeded the configured limit for concurrent job execution. APScheduler provides a mechanism to control the number of concurrent job executions using the max_instances parameter.

To resolve this issue, you can adjust the max_instances parameter while creating the scheduler to allow more concurrent job executions.

Here's an example of how to set the max_instances parameter in APScheduler:

from apscheduler.schedulers.background import BackgroundScheduler def my_job(): print("Job executed") scheduler = BackgroundScheduler(max_instances=10) # Adjust this value as needed scheduler.add_job(my_job, 'interval', seconds=10) scheduler.start() # Keep the program running try: while True: pass except (KeyboardInterrupt, SystemExit): scheduler.shutdown()

In this example, the max_instances parameter is set to 10, which means that up to 10 instances of the job can run concurrently. You can adjust this value based on your requirements and the resources available on your system.

Keep in mind that setting a higher max_instances value could increase the load on your system, so consider your system's capabilities and the nature of your jobs when adjusting this parameter.

Examples

    from apscheduler.schedulers.background import BackgroundScheduler def job_function(): print("This is a scheduled job.") scheduler = BackgroundScheduler() scheduler.add_job(job_function, 'interval', seconds=10) scheduler.start() 
      from apscheduler.schedulers.background import BackgroundScheduler def job_function(): print("This is a scheduled job.") scheduler = BackgroundScheduler(max_instances=5) # Set maximum instances to 5 scheduler.add_job(job_function, 'interval', seconds=10) scheduler.start() 
        from apscheduler.schedulers.background import BackgroundScheduler def job_function(): print("This is a scheduled job.") scheduler = BackgroundScheduler(max_instances=10) # Set maximum instances to 10 scheduler.add_job(job_function, 'interval', seconds=10) scheduler.start() 
          from apscheduler.schedulers.background import BackgroundScheduler def job_function(): print("This is a scheduled job.") scheduler = BackgroundScheduler() scheduler.add_job(job_function, 'interval', seconds=10, max_instances=5) # Limit instances to 5 scheduler.start() 
            from apscheduler.schedulers.background import BackgroundScheduler def job_function(): print("This is a scheduled job.") scheduler = BackgroundScheduler() scheduler.add_job(job_function, 'interval', seconds=10, max_instances=5) # Limit instances to 5 scheduler.start() 
              from apscheduler.schedulers.background import BackgroundScheduler def job_function(): print("This is a scheduled job.") scheduler = BackgroundScheduler(max_instances=5) # Limit maximum instances to 5 scheduler.add_job(job_function, 'interval', seconds=10) scheduler.start() 
                from apscheduler.schedulers.background import BackgroundScheduler def job_function(): print("This is a scheduled job.") scheduler = BackgroundScheduler(max_instances=5) # Limit maximum instances to 5 scheduler.add_job(job_function, 'interval', seconds=10) scheduler.start() 
                  from apscheduler.schedulers.background import BackgroundScheduler def job_function(): print("This is a scheduled job.") scheduler = BackgroundScheduler(max_instances=5) # Limit maximum instances to 5 scheduler.add_job(job_function, 'interval', seconds=10) scheduler.start() 
                    from apscheduler.schedulers.background import BackgroundScheduler def job_function(): print("This is a scheduled job.") scheduler = BackgroundScheduler(max_instances=5) # Limit maximum instances to 5 scheduler.add_job(job_function, 'interval', seconds=10) scheduler.start()

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