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Posted to commits@airflow.apache.org by "Richard Postelnik (JIRA)" <ji...@apache.org> on 2019/07/11 14:52:00 UTC

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

     [ https://issues.apache.org/jira/browse/AIRFLOW-4933?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Richard Postelnik updated AIRFLOW-4933:
---------------------------------------
    Description: 
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. 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#L255-L257]

  was:
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]


> 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
>            Priority: Trivial
>
> 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. 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#L255-L257]



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