Do you know what I do when I have to test a failing Airflow task? I copy the rendered template and run the code on my own, without Airflow. It is way easier to fiddle with the parameters, for example, to get more verbose output.
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To get a rendered template, I used to open an instance of the task, copy the code, and change the parameters to match the execution date I wanted. That is the long and error-prone way to do it.
It turns out that the Airflow command-line interface has a command that generates a rendered template of a given task for the execution date we choose. No more copy-pasting and looking for parameters to change!
All we need is this command:
airflow render dag_id task_id execution_date
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