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Daniel Imberman commented on AIRFLOW-417: ----------------------------------------- This issue has been moved to https://github.com/apache/airflow/issues/7936 > 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 > Assignee: Vijay Bhat > Priority: Major > Labels: UI, easy-fix > > 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} -- This message was sent by Atlassian Jira (v8.3.4#803005)