Miskho commented on issue #26394:
URL: https://github.com/apache/airflow/issues/26394#issuecomment-1249339890
Hi eveyone,
I am facing the same issue, basically after updating to 2.3.4 some of mine
scheduled tasks would not run i.e. the DAG run itself would be labeled as
running, but the first task in the DAG would just get set to queued and would
never run, the scheduler would report the same
```
INFO - task TaskInstanceKey(dag_id='...', task_id='...',
run_id='scheduled__2022-09-16T12:49:00+00:00', try_number=1, map_index=-1) is
still running
scheduler [2022-09-16T12:58:17.664+0000] {base_executor.py:215} ERROR -
could not queue task TaskInstanceKey(dag_id='....', task_id='...',
run_id='scheduled__2022-09-16T12:47:00+00:00', try_number=1, map_index=-1)
(still running after 4 attempts)
```
Runing the task manually would succeed, but scheduled tasks would not run,
if I drop the dag_runs from db, then the first scheduled dag run would succeed
but all after it would halt as described above.
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