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From "Siddharth Anand (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AIRFLOW-2263) stack trace from null dag in webserver output
Date Thu, 13 Sep 2018 15:14:00 GMT

    [ https://issues.apache.org/jira/browse/AIRFLOW-2263?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16613620#comment-16613620
] 

Siddharth Anand commented on AIRFLOW-2263:
------------------------------------------

[~mark_tven_original] Can you provide steps to reproduce?
 * What version of Airflow are you running?
 * How did you come across this use-case?

> stack trace from null dag in webserver output
> ---------------------------------------------
>
>                 Key: AIRFLOW-2263
>                 URL: https://issues.apache.org/jira/browse/AIRFLOW-2263
>             Project: Apache Airflow
>          Issue Type: Bug
>            Reporter: andy dreyfuss
>            Assignee: Mark Lavrynenko
>            Priority: Major
>
> webserver is reporting the following
> {code:java}
> Traceback (most recent call last):
> File "/path/to/a/virtualenv/lib/python3.6/site-packages/flask/app.py", line 1988, in
wsgi_app
> response = self.full_dispatch_request()
> File "/path/to/a/virtualenv/lib/python3.6/site-packages/flask/app.py", line 1641, in
full_dispatch_request
> rv = self.handle_user_exception(e)
> File "/path/to/a/virtualenv/lib/python3.6/site-packages/flask/app.py", line 1544, in
handle_user_exception
> reraise(exc_type, exc_value, tb)
> File "/path/to/a/virtualenv/lib/python3.6/site-packages/flask/_compat.py", line 33, in
reraise
> raise value
> File "/path/to/a/virtualenv/lib/python3.6/site-packages/flask/app.py", line 1639, in
full_dispatch_request
> rv = self.dispatch_request()
> File "/path/to/a/virtualenv/lib/python3.6/site-packages/flask/app.py", line 1625, in
dispatch_request
> return self.view_functions[rule.endpoint](**req.view_args)
> File "/path/to/a/virtualenv/lib/python3.6/site-packages/flask_admin/base.py", line 69,
in inner
> return self._run_view(f, *args, **kwargs)
> File "/path/to/a/virtualenv/lib/python3.6/site-packages/flask_admin/base.py", line 368,
in _run_view
> return fn(self, *args, **kwargs)
> File "/path/to/a/virtualenv/lib/python3.6/site-packages/flask_login.py", line 755, in
decorated_view
> return func(*args, **kwargs)
> File "/path/to/a/virtualenv/lib/python3.6/site-packages/airflow/www/utils.py", line 356,
in view_func
> return f(*args, **kwargs)
> File "/path/to/a/virtualenv/lib/python3.6/site-packages/airflow/www/utils.py", line 262,
in wrapper
> return f(*args, **kwargs)
> File "/path/to/a/virtualenv/lib/python3.6/site-packages/airflow/www/views.py", line 1154,
in tree
> base_date = dag.latest_execution_date or datetime.utcnow()
> AttributeError: 'NoneType' object has no attribute 'latest_execution_date'
>  
> {code}



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