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Posted to commits@airflow.apache.org by GitBox <gi...@apache.org> on 2021/01/19 23:05:13 UTC

[GitHub] [airflow] kaxil commented on issue #13667: scheduler dies with "TypeError: '>' not supported between instances of 'NoneType' and 'datetime.datetime'"

kaxil commented on issue #13667:
URL: https://github.com/apache/airflow/issues/13667#issuecomment-763199559


   Did you run `airflow db upgrade` before upgrading to 2.0.0?
   
   https://github.com/apache/airflow/blob/8a4bd3c73eb46c5ddd9312c71772a423fb1fd688/airflow/models/dagbag.py#L183-L188
   
   https://github.com/apache/airflow/blob/8a4bd3c73eb46c5ddd9312c71772a423fb1fd688/airflow/models/serialized_dag.py#L254-L266
   
   I am not sure how `get_last_updated_datetime` can be none, for it to be `None`, you might need to have DAGs in DagBag for Webserver which is not possible.
   
   Is your Webserver and Scheduler both using 2.0.0 image?
   
   


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