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Posted to commits@airflow.apache.org by "Richard Postelnik (JIRA)" <ji...@apache.org> on 2019/07/11 14:48:00 UTC

[jira] [Created] (AIRFLOW-4933) DAG init causes side effects on default args

Richard Postelnik created AIRFLOW-4933:
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             Summary: DAG init causes side effects on default args
                 Key: AIRFLOW-4933
                 URL: https://issues.apache.org/jira/browse/AIRFLOW-4933
             Project: Apache Airflow
          Issue Type: Bug
          Components: DAG
    Affects Versions: 1.10.3
            Reporter: Richard Postelnik


I have multiple dags defined in one file (understand this is not recommended). I shared the same default_args between two dags and found that the latter dag was running on UTC instead of the timezone of the start_date. Debugging, I found the following line convert the start_date to UTC in the DAG init and it must be doing it in-place. A deepcopy in the init should resolve this and allow a reusable set of defaults.

 

[https://github.com/apache/airflow/blob/master/airflow/models/dag.py#L250]



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