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Posted to commits@airflow.apache.org by GitBox <gi...@apache.org> on 2022/12/05 13:38:58 UTC

[GitHub] [airflow] kosteev opened a new issue, #28118: Scheduler heartbeat warning message in Airflow UI displaying that scheduler is down sometimes incorrect

kosteev opened a new issue, #28118:
URL: https://github.com/apache/airflow/issues/28118

   ### Apache Airflow version
   
   main (development)
   
   ### What happened
   
   Steps to reproduce:
   1. run 2 replicas of scheduler
   2. initiate shut down of one of the schedulers
   3. In Airflow UI observe message
   <img width="1162" alt="image" src="https://user-images.githubusercontent.com/1017130/205650336-fb1d8e39-2213-4aec-8530-abd1417db426.png">
   
   3rd step should be done immediately after 2nd (refreshing UI page few times). 2nd and 3rd steps might be repeated for couple of times in order to reproduce.
   
   
   ### What you think should happen instead
   
   Warning message shouldn't be displayed.
   
   The issue is that for this warning message recent (with latest heartbet) scheduler job is fetched
   https://github.com/apache/airflow/blob/f02a7e9a8292909b369daae6d573f58deed04440/airflow/jobs/base_job.py#L133.
   
   And this may point to job which is not running (state!="running") and that is why we see warning message.
   The warning message in this case is misleading as another replica of scheduler is running in parallel.
   
   ### How to reproduce
   
   _No response_
   
   ### Operating System
   
   Linux
   
   ### Versions of Apache Airflow Providers
   
   _No response_
   
   ### Deployment
   
   Composer
   
   ### Deployment details
   
   _No response_
   
   ### Anything else
   
   _No response_
   
   ### Are you willing to submit PR?
   
   - [X] 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)
   


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[GitHub] [airflow] uranusjr closed issue #28118: Scheduler heartbeat warning message in Airflow UI displaying that scheduler is down sometimes incorrect

Posted by GitBox <gi...@apache.org>.
uranusjr closed issue #28118: Scheduler heartbeat warning message in Airflow UI displaying that scheduler is down sometimes incorrect
URL: https://github.com/apache/airflow/issues/28118


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