mongakshay edited a comment on issue #13542: URL: https://github.com/apache/airflow/issues/13542#issuecomment-892630614
I am also noticing this issue with my Airflow v2.1.2 instance, where the task is forever in queued state, and in the scheduler log I see ``` airflow-scheduler1_1 | [2021-08-04 12:45:23,286] {base_executor.py:85} ERROR - could not queue task TaskInstanceKey(dag_id='example_complex', task_id='create_tag_template_result2', execution_date=datetime.datetime(2021, 8, 3, 22, 39, 34, 577031, tzinfo=Timezone('UTC')), try_number=1) ``` When I sent the SIGUSR2 signal to scheduler I recived: ``` airflow-scheduler1_1 | SIGUSR2 received, printing debug airflow-scheduler1_1 | -------------------------------------------------------------------------------- airflow-scheduler1_1 | [2021-08-04 13:07:37,230] {base_executor.py:305} INFO - executor.queued (0) airflow-scheduler1_1 | airflow-scheduler1_1 | [2021-08-04 13:07:37,231] {base_executor.py:307} INFO - executor.running (1) airflow-scheduler1_1 | TaskInstanceKey(dag_id='example_complex', task_id='create_tag_template_result2', execution_date=datetime.datetime(2021, 8, 3, 22, 39, 34, 577031, tzinfo=Timezone('UTC')), try_number=1) airflow-scheduler1_1 | [2021-08-04 13:07:37,233] {base_executor.py:311} INFO - executor.event_buffer (0) airflow-scheduler1_1 | airflow-scheduler1_1 | [2021-08-04 13:07:37,234] {celery_executor.py:372} INFO - executor.tasks (1) airflow-scheduler1_1 | (TaskInstanceKey(dag_id='example_complex', task_id='create_tag_template_result2', execution_date=datetime.datetime(2021, 8, 3, 22, 39, 34, 577031, tzinfo=Timezone('UTC')), try_number=1), <AsyncResult: 1ed20983-dbd3-47c6-8404-345fa0fb75ff>) airflow-scheduler1_1 | [2021-08-04 13:07:37,235] {celery_executor.py:377} INFO - executor.adopted_task_timeouts (0) ``` -- 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