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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