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Date: Thu, 11 Aug 2016 18:12:23 +0000 (UTC)
From: "Dan Davydov (JIRA)" <jira@apache.org>
To: commits@airflow.incubator.apache.org
Message-ID: <JIRA.12996707.1470939117000.285496.1470939143287@Atlassian.JIRA>
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References: <JIRA.12996707.1470939117000@Atlassian.JIRA> <JIRA.12996707.1470939117424@arcas>
Subject: [jira] [Updated] (AIRFLOW-417) UI should not print traceback for
 missing dag/task in URL
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archived-at: Thu, 11 Aug 2016 18:12:31 -0000


     [ https://issues.apache.org/jira/browse/AIRFLOW-417?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dan Davydov updated AIRFLOW-417:
--------------------------------
    Component/s: webserver

> UI should not print traceback for missing dag/task in URL
> ---------------------------------------------------------
>
>                 Key: AIRFLOW-417
>                 URL: https://issues.apache.org/jira/browse/AIRFLOW-417
>             Project: Apache Airflow
>          Issue Type: Bug
>          Components: webserver
>            Reporter: Dan Davydov
>              Labels: UI
>
> Right now if a user runs tries to do certain things in the UI with dags/tasks that don't exist they get confusing tracebacks rather than an error rendered in html like "the dag/task doesn't exist". One such traceback can be seen by going to the tree view for any DAG in the UI and then changing the url in the address bar for the dag_id to be a non-existent dag. The following traceback can be seen:
> {quote}
> Traceback (most recent call last):
>   File "/usr/local/lib/python2.7/dist-packages/Flask-0.10.1-py2.7.egg/flask/app.py", line 1817, in wsgi_app
>     response = self.full_dispatch_request()
>   File "/usr/local/lib/python2.7/dist-packages/Flask-0.10.1-py2.7.egg/flask/app.py", line 1477, in full_dispatch_request
>     rv = self.handle_user_exception(e)
>   File "/usr/local/lib/python2.7/dist-packages/Flask-0.10.1-py2.7.egg/flask/app.py", line 1381, in handle_user_exception
>     reraise(exc_type, exc_value, tb)
>   File "/usr/local/lib/python2.7/dist-packages/Flask-0.10.1-py2.7.egg/flask/app.py", line 1475, in full_dispatch_request
>     rv = self.dispatch_request()
>   File "/usr/local/lib/python2.7/dist-packages/Flask-0.10.1-py2.7.egg/flask/app.py", line 1461, in dispatch_request
>     return self.view_functions[rule.endpoint](**req.view_args)
>   File "/usr/local/lib/python2.7/dist-packages/Flask_Admin-1.4.0-py2.7.egg/flask_admin/base.py", line 68, in inner
>     return self._run_view(f, *args, **kwargs)
>   File "/usr/local/lib/python2.7/dist-packages/Flask_Admin-1.4.0-py2.7.egg/flask_admin/base.py", line 367, in _run_view
>     return fn(self, *args, **kwargs)
>   File "/usr/local/lib/python2.7/dist-packages/Flask_Login-0.2.11-py2.7.egg/flask_login.py", line 758, in decorated_view
>     return func(*args, **kwargs)
>   File "/usr/local/lib/python2.7/dist-packages/airflow/www/utils.py", line 213, in view_func
>     return f(*args, **kwargs)
>   File "/usr/local/lib/python2.7/dist-packages/airflow/www/utils.py", line 118, in wrapper
>     return f(*args, **kwargs)
>   File "/usr/local/lib/python2.7/dist-packages/airflow/www/views.py", line 1208, in tree
>     base_date = dag.latest_execution_date or datetime.now()
> AttributeError: 'NoneType' object has no attribute 'latest_execution_date'
> {quote}


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