Incorrect run gets started

[CarlKarlssonSchmidt]

Apache Airflow version

Other Airflow 2 version (please specify below)

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

2.6.3

What happened?

We have seen that on DAG:s with depend_on_past=True & max_active_task=1 a run which is not the next in line starts and immediately hangs due to depend_on_task=True. Since we have max_active_task=1 this blocks the DAG from running completely until the incorrect run i cleared manually.

What you think should happen instead?

The next run in line should be started

How to reproduce

This is intermittent. I'm running a re-running a DAG by clearing the state on all previous runs. Maybe 1 of 10 triggeres are on the wrong date.

Operating System

MWAA

Versions of Apache Airflow Providers

No response

Deployment

Amazon (AWS) MWAA

Deployment details

No response

Anything else?

For this DAG and a dag with a sensor to it, 1 out of 10 triggers/runs are incorrect.

Are you willing to submit PR?

• Yes I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct

[boring-cyborg]

Thanks for opening your first issue here! Be sure to follow the issue template! If you are willing to raise PR to address this issue please do so, no need to wait for approval.

[vatsrahul1001]

@CarlKarlssonSchmidt I am not able to reproduce this. can you share your DAG? Also have you also tested this with 2.9.2