[GitHub] [airflow] trollhe opened a new issue #15607: airflow throws error: airflow.exceptions.SerializedDagNotFound: DAG 'dns-basic-1min' not found in serialized_dag table

[GitBox]

trollhe opened a new issue #15607:
URL: https://github.com/apache/airflow/issues/15607


   hi,team:
   
      i deployment airflow 2.0.2 in docker by docker-compose,airflow service 
start just 1 minute have many dags,bug 1 minute after dag is none,and throws 
bellow error:
   
      already share dag folder to webservice/scheduler/flower container
   
   
![image](https://user-images.githubusercontent.com/41068725/116637904-b498ca00-a997-11eb-8ca2-428f0ff821cd.png)
   
![image](https://user-images.githubusercontent.com/41068725/116638004-ead64980-a997-11eb-96cd-cf5becd7a743.png)
   
   
   ```
   Python version: 3.8.5
   Airflow version: 2.0.2
   Node: airflow-webserver
   
-------------------------------------------------------------------------------
   Traceback (most recent call last):
     File "/root/.local/lib/python3.8/site-packages/flask/app.py", line 2447, 
in wsgi_app
       response = self.full_dispatch_request()
     File "/root/.local/lib/python3.8/site-packages/flask/app.py", line 1952, 
in full_dispatch_request
       rv = self.handle_user_exception(e)
     File "/root/.local/lib/python3.8/site-packages/flask/app.py", line 1821, 
in handle_user_exception
       reraise(exc_type, exc_value, tb)
     File "/root/.local/lib/python3.8/site-packages/flask/_compat.py", line 39, 
in reraise
       raise value
     File "/root/.local/lib/python3.8/site-packages/flask/app.py", line 1950, 
in full_dispatch_request
       rv = self.dispatch_request()
     File "/root/.local/lib/python3.8/site-packages/flask/app.py", line 1936, 
in dispatch_request
       return self.view_functions[rule.endpoint](**req.view_args)
     File "/usr/local/lib/python3.8/site-packages/airflow/www/auth.py", line 
34, in decorated
       return func(*args, **kwargs)
     File "/usr/local/lib/python3.8/site-packages/airflow/www/decorators.py", 
line 97, in view_func
       return f(*args, **kwargs)
     File "/usr/local/lib/python3.8/site-packages/airflow/www/decorators.py", 
line 60, in wrapper
       return f(*args, **kwargs)
     File "/usr/local/lib/python3.8/site-packages/airflow/www/views.py", line 
1876, in tree
       dag = current_app.dag_bag.get_dag(dag_id)
     File "/usr/local/lib/python3.8/site-packages/airflow/utils/session.py", 
line 70, in wrapper
       return func(*args, session=session, **kwargs)
     File "/usr/local/lib/python3.8/site-packages/airflow/models/dagbag.py", 
line 181, in get_dag
       self._add_dag_from_db(dag_id=dag_id, session=session)
     File "/usr/local/lib/python3.8/site-packages/airflow/models/dagbag.py", 
line 237, in _add_dag_from_db
       raise SerializedDagNotFound(f"DAG '{dag_id}' not found in serialized_dag 
table")
   airflow.exceptions.SerializedDagNotFound: DAG 'dns-basic-1min' not found in 
serialized_dag table
   ```
   
   


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