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apache / airflow

Apache Airflow - A platform to programmatically author, schedule, and monitor workflows
https://airflow.apache.org/
Apache License 2.0
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Failed to clear task instances in "List Task Instance Page" #44274

Open helenyi-stripe opened 11 hours ago

helenyi-stripe commented 11 hours ago

Apache Airflow version

Other Airflow 2 version (please specify below)

If "Other Airflow 2 version" selected, which one?

2.8.4

What happened?

I am trying to bulk clear a list of task instances returned by taskinstance/list page.

However, the clearing was not successful due to the following error

Failed to clear task instances: "'NoneType' object has no attribute 'partial_subset'"

I think the issue was some of the task instances returned in that page (along with their associated dags) no longer exist. Therefore, when we try to call partial_subset on these dags (code), the code fails and the exception is caught here this.

The result of this is that the task instances I want to clear and do still exist ended up not getting cleared.

What you think should happen instead?

I think we should add a try catch block in _clear_task_instances here

How to reproduce

You can try to clear a task instance whose dag no longer exist in the List Task Instance UI page.

Operating System

NAME="Ubuntu" VERSION="20.04.6 LTS (Focal Fossa)"

Versions of Apache Airflow Providers

No response

Deployment

Other

Deployment details

No response

Anything else?

No response

Are you willing to submit PR?

Code of Conduct

boring-cyborg[bot] commented 11 hours ago

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