microhuang opened a new issue #18002:
URL: https://github.com/apache/airflow/issues/18002


   ### Apache Airflow version
   
   2.1.3 (latest released)
   
   ### Operating System
   
   CentOS 8
   
   ### Versions of Apache Airflow Providers
   
   _No response_
   
   ### Deployment
   
   Virtualenv installation
   
   ### Deployment details
   
   _No response_
   
   ### What happened
   
    An error occurred while navigating this url -- 
/log?dag_id=demo2&task_id=ddd&execution_date=2021-09-03T06%3A00%3A00%2B00%3A00
   
   
   Something bad has happened.
   
   Airflow is used by many users, and it is very likely that others had similar 
problems and you can easily find
   a solution to your problem.
   
   Consider following these steps:
   
     * gather the relevant information (detailed logs with errors, reproduction 
steps, details of your deployment)
   
     * find similar issues using:
        * GitHub Discussions
        * GitHub Issues
        * Stack Overflow
        * the usual search engine you use on a daily basis
   
     * if you run Airflow on a Managed Service, consider opening an issue using 
the service support channels
   
     * if you tried and have difficulty with diagnosing and fixing the problem 
yourself, consider creating a bug report.
       Make sure however, to include all relevant details and results of your 
investigation so far.
   
   Python version: 3.9.5
   Airflow version: 2.1.3
   Node: localhost.localdomain
   
-------------------------------------------------------------------------------
   Traceback (most recent call last):
     File "/usr/local/lib/python3.9/site-packages/flask/app.py", line 2447, in 
wsgi_app
       response = self.full_dispatch_request()
     File "/usr/local/lib/python3.9/site-packages/flask/app.py", line 1952, in 
full_dispatch_request
       rv = self.handle_user_exception(e)
     File "/usr/local/lib/python3.9/site-packages/flask/app.py", line 1821, in 
handle_user_exception
       reraise(exc_type, exc_value, tb)
     File "/usr/local/lib/python3.9/site-packages/flask/_compat.py", line 39, 
in reraise
       raise value
     File "/usr/local/lib/python3.9/site-packages/flask/app.py", line 1950, in 
full_dispatch_request
       rv = self.dispatch_request()
     File "/usr/local/lib/python3.9/site-packages/flask/app.py", line 1936, in 
dispatch_request
       return self.view_functions[rule.endpoint](**req.view_args)
     File "/opt/work/airflow.git/airflow/www/auth.py", line 49, in decorated
       return func(*args, **kwargs)
     File "/opt/work/airflow.git/airflow/www/decorators.py", line 71, in wrapper
       return f(*args, **kwargs)
     File "/opt/work/airflow.git/airflow/utils/session.py", line 70, in wrapper
       return func(*args, session=session, **kwargs)
     File "/opt/work/airflow.git/airflow/www/views.py", line 1282, in log
       return self.render_template(
     File "/opt/work/airflow.git/airflow/www/views.py", line 471, in 
render_template
       return super().render_template(
     File 
"/usr/local/lib/python3.9/site-packages/flask_appbuilder/baseviews.py", line 
287, in render_template
       return render_template(
     File "/usr/local/lib/python3.9/site-packages/flask/templating.py", line 
138, in render_template
       ctx.app.jinja_env.get_or_select_template(template_name_or_list),
     File "/usr/local/lib/python3.9/site-packages/jinja2/environment.py", line 
930, in get_or_select_template
       return self.get_template(template_name_or_list, parent, globals)
     File "/usr/local/lib/python3.9/site-packages/jinja2/environment.py", line 
883, in get_template
       return self._load_template(name, self.make_globals(globals))
     File "/usr/local/lib/python3.9/site-packages/jinja2/environment.py", line 
857, in _load_template
       template = self.loader.load(self, name, globals)
     File "/usr/local/lib/python3.9/site-packages/jinja2/loaders.py", line 115, 
in load
       source, filename, uptodate = self.get_source(environment, name)
     File "/usr/local/lib/python3.9/site-packages/flask/templating.py", line 
60, in get_source
       return self._get_source_fast(environment, template)
     File "/usr/local/lib/python3.9/site-packages/flask/templating.py", line 
86, in _get_source_fast
       return loader.get_source(environment, template)
     File "/usr/local/lib/python3.9/site-packages/jinja2/loaders.py", line 417, 
in get_source
       return loader.get_source(environment, template)
     File "/usr/local/lib/python3.9/site-packages/jinja2/loaders.py", line 417, 
in get_source
       return loader.get_source(environment, template)
     File "/usr/local/lib/python3.9/site-packages/jinja2/loaders.py", line 417, 
in get_source
       return loader.get_source(environment, template)
     [Previous line repeated 958 more times]
     File "/usr/local/lib/python3.9/site-packages/jinja2/loaders.py", line 180, 
in get_source
       f = open_if_exists(filename)
     File "/usr/local/lib/python3.9/site-packages/jinja2/utils.py", line 141, 
in open_if_exists
       if not os.path.isfile(filename):
     File "/usr/local/lib/python3.9/genericpath.py", line 30, in isfile
       st = os.stat(path)
   RecursionError: maximum recursion depth exceeded while calling a Python 
object
   
   ### What you expected to happen
   
   _No response_
   
   ### How to reproduce
   
   _No response_
   
   ### Anything else
   
   _No response_
   
   ### Are you willing to submit PR?
   
   - [ ] Yes I am willing to submit a PR!
   
   ### Code of Conduct
   
   - [X] I agree to follow this project's [Code of 
Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)
   


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