Overbryd edited a comment on issue #13542:
URL: https://github.com/apache/airflow/issues/13542#issuecomment-945785740
I will unsubscribe from this issue.
I have not encountered this issue again (Airflow 2.1.2).
But the following circumstances made this issue pop up again:
* An Airflow DAG/task is being scheduled (not queued yet)
* The Airflow DAG code is being updated, but it contains an error, so that
the scheduler cannot load the code and the task that starts up exits immediately
* Then the scheduler thinks the task is queued, but the task crashed
immediately (using KubernetesExecutor)
How do I prevent this issue?
I simply make sure the DAG code is 100% clean and loads both in the
scheduler and the tasks that start up (using KubernetesExecutor).
How do I recover from this issue?
First, I fix the issue that prevents the DAG code from loading. I restart
the scheduler.
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