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https://issues.apache.org/jira/browse/AIRFLOW-4551?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16844643#comment-16844643
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Emmanuel Brard commented on AIRFLOW-4551:
-----------------------------------------

[~jackjack10] Not really, what you mentioned is really interesting but the 
scheduler logs are not necessarily available to end-users and also I don't see 
in the code anything special about dealing with DAG parsing exception. 

The strak trace I mentioned is already available from the scheduler log itself, 
but unfortunately only the exception is made available to the end-user through 
the web UI (the famous broken DAG message).

Since the `stractrace` field in the `import_error` table is of type text I 
think it would be relevant to add the actual stacktrace and not only the 
exception.

> Scheduler captures exception and stracktrace
> --------------------------------------------
>
>                 Key: AIRFLOW-4551
>                 URL: https://issues.apache.org/jira/browse/AIRFLOW-4551
>             Project: Apache Airflow
>          Issue Type: New Feature
>          Components: scheduler
>            Reporter: Emmanuel Brard
>            Priority: Minor
>
> As of today, when the scheduler cannot import a DAG, an entry is 
> [added|https://github.com/apache/airflow/blob/97ad71c99373759cc022733b2732c3bd43af983d/airflow/models/dagbag.py#L201]
>  to `import_error` table with the exception message as `stacktrace` (later 
> displayed on the web-ui). 
> This is most of the time not enough to debug complex situation. 
> I would suggest to add the "real" stack trace in addition to the exception. 
> Using the traceback module should allow for it in a very similar way.



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