kaxil commented on issue #7913: [AIRFLOW-7113] fix gantt render error URL: https://github.com/apache/airflow/pull/7913#issuecomment-605390525 > @KevinYang21, yes it's correct. > > @kaxil. Tasks fail at early stage, e.g. during parsing, won't contain the start date. When handling failures, scheduler will store those failed tasks in task_fail table. Which crashes the gantt chart. To reproduce the error, you need to have a row w/o start_date in task_fail table. Entries w/o start_date in task_instance table will be fine as the query filters them out. I reverted the change on it. Shouldn't we change the Scheduler code to store the start_date and if there is any error store start_date = end_date during that time before we store in task_fail table?
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