[GitHub] [airflow] andreychernih opened a new issue #20461: Airflow is trying to schedule tasks prior to DAG's start_date

[GitBox]

andreychernih opened a new issue #20461:
URL: https://github.com/apache/airflow/issues/20461


   ### Apache Airflow version
   
   2.2.2
   
   ### What happened
   
   I have a DAG which start_date was 09/01/2021 initially but then it was 
changed to 11/01/2021. This DAG has some runs prior to 11/01/2021 that did not 
get a chance to finish. I can now see that scheduler is still trying to 
schedule the runs prior to 11/01/2021. But none of the tasks in these runs are 
starting because of the start_date check I presume. This is maxing out the 
active runs thus blocking any other days within the DAG range to be scheduled.
   
   <img width="1335" alt="Screen Shot 2021-12-22 at 7 56 22 AM" 
src="https://user-images.githubusercontent.com/131281/147105749-cc32bfe4-33b1-46fc-8cca-f5e31c92b0e0.png";>
   <img width="992" alt="Screen Shot 2021-12-22 at 7 56 29 AM" 
src="https://user-images.githubusercontent.com/131281/147105764-857d0f85-2877-4ae5-b568-7cbf21c6ca48.png";>
   
   
   ### What you expected to happen
   
   Scheduler should not be trying to schedule runs that are prior to DAG's 
start_date.
   
   ### How to reproduce
   
   _No response_
   
   ### Operating System
   
   Airflow Docker
   
   ### Versions of Apache Airflow Providers
   
   _No response_
   
   ### Deployment
   
   Other Docker-based deployment
   
   ### Deployment details
   
   _No response_
   
   ### Anything else
   
   _No response_
   
   ### Are you willing to submit PR?
   
   - [ ] Yes I am willing to submit a PR!
   
   ### Code of Conduct
   
   - [X] I agree to follow this project's [Code of 
Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)
   


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: commits-unsubscr...@airflow.apache.org

For queries about this service, please contact Infrastructure at:
us...@infra.apache.org