![]() Company Profile | Scottsville, KY | Competitors, Financials & Contacts - Dun & Bradstreet HOME / BUSINESS DIRECTORY / MANUFACTURING / MACHINERY MANUFACTURING / VENTILATION, HEATING, AIR-CONDITIONING, AND COMMERCIAL REFRIGERATION EQUIPMENT MANUFACTURING / UNITED STATES …Halton Company 101 Industrial Drive Scottsville, KY 42164 United States of America Leaders at Halton, a leading maker of commercial kitchen ventilation and air distribution systems, announced a $7.4 million expansion of the company’s facility in Allen County. While your sensor is waiting it occupies a worker so no other tasks can use it, which can result in your other tasks being locked from execution, especially if you have a lot of sensors.Halton scottsville ky FRANKFORT, Ky. Personally, I'll be very cautious with setting a long timeout period. ![]() In your case it waits 60 seconds before it fails. Here's a good article that goes into a bit more detail about schedule_interval pitfall regards to waiting time, that's your timeout parameter in ExternalTaskSensor. Even if for the test try to set you parent dag to start at 20:35 and see if it solves the problem. In this case your child dag looks for a parent dag that started at 20:35 (in your example), but it actually started at 20:36, so it fails. I see that both parent and child dag have exactly the same start_date and schedule_interval, yet your execution_delta is 1 minute. The most common cause of problems with ExternalTaskSensor is with execution_delta parameter, so I would start there. Please help) I have been working with airflow recently, I may be missing something. ![]() Also, I do not understand how to organize the waiting for the task to be completed in the parent dag. If the launch is known to be successful, the situation is the same, exactly the opposite. But this does not work at all as I expect, at the first start of the dag everything is fine, it works correctly, if I change the data in the text file, then the parent task works correctly, for example, I launch the parent dag with a knowingly error, everything will work correctly, the child class will end with an error, but if I change the text, again the parent will work correctly, but the child will continue to fall for a while, then it may be correct, but not a fact. Task1 = PythonOperator(task_id='task1', python_callable=check)Īs you can see, I'm trying to emulate the situation when the parent task fails if err is specified in the text file and succeeds in any other case. Wait_timer = PythonOperator(task_id='wait_timer', python_callable=wait)ĭag child from datetime import datetime, timedeltaįrom etl_parent import etl1, wait_timer, parent_task I wrote code like this:įrom _operator import DummyOperatorįrom _operator import PythonOperatorįrom _task_sensor import ExternalTaskSensor, ExternalTaskMarker The problem is that this does not work even in the simplest case, I don’t understand how to synchronize them. There are two dags Parent and Child, parent has its own schedule, suppose '30 * * * * ', child '1 8-17 * * 1-5', child waits for parent to execute, for example 40 minutes, if parent ends with error, then child also crashes with an error, otherwise the next task of the child class is executed.
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