ffinfo commented on issue #4396: [AIRFLOW-3585] - Add edges to database URL: https://github.com/apache/airflow/pull/4396#issuecomment-464601517 @astahlman I do see your point but I don't really have a good solution for that. If we take dynamic dags into account viewing a (correct) dag is rather impossible if there is no DagRun yet. There are 2 ways still allow this but both are not really good options. - When no dag run is there still read the dag file, rather not because then the webserver still needs to parse the python files. - Store a graph on import on graph_id 0, problem here are the task instances because I don't want to pollute this table with fake data. I rather keep it like this. I can change the error message with an error that there are no dagruns yet, and maybe not a redirect but stay on /graph. I can even put a trigger link in the error message ;).
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