[GitHub] [incubator-superset] robdiciuccio opened a new issue #8651: Async queries failing in celery workers

[GitBox <gi...@apache.org>]

robdiciuccio opened a new issue #8651: Async queries failing in celery workers
URL: https://github.com/apache/incubator-superset/issues/8651
 
 
   When running a query in SQL Lab against a database with async queries enabled, the following error is raised by the celery worker:
   
   ```
   Task sql_lab.get_sql_results[051acb0d-30a5-4dbe-b30e-5b16bc9d8545] raised unexpected: RuntimeError('Working outside of application context.\n\nThis typically means that you attempted to use functionality that needed\nto interface with the current application object in some way. To solve\nthis, set up an application context with app.app_context().  See the\ndocumentation for more information.',)
   Traceback (most recent call last):
     File "/Users/rob/work/incubator-superset/venv/lib/python3.6/site-packages/celery/app/trace.py", line 385, in trace_task
       R = retval = fun(*args, **kwargs)
     File "/Users/rob/work/incubator-superset/venv/lib/python3.6/site-packages/celery/app/trace.py", line 648, in __protected_call__
       return self.run(*args, **kwargs)
     File "/Users/rob/work/incubator-superset/superset/sql_lab.py", line 154, in get_sql_results
       with session_scope(not ctask.request.called_directly) as session:
     File "/Users/rob/work/incubator-superset/venv/lib/python3.6/site-packages/contextlib2.py", line 79, in __enter__
       return next(self.gen)
     File "/Users/rob/work/incubator-superset/superset/sql_lab.py", line 117, in session_scope
       app.config["SQLALCHEMY_DATABASE_URI"], poolclass=NullPool
     File "/Users/rob/work/incubator-superset/venv/lib/python3.6/site-packages/werkzeug/local.py", line 348, in __getattr__
       return getattr(self._get_current_object(), name)
     File "/Users/rob/work/incubator-superset/venv/lib/python3.6/site-packages/werkzeug/local.py", line 307, in _get_current_object
       return self.__local()
     File "/Users/rob/work/incubator-superset/venv/lib/python3.6/site-packages/flask/globals.py", line 52, in _find_app
       raise RuntimeError(_app_ctx_err_msg)
   RuntimeError: Working outside of application context.
   
   This typically means that you attempted to use functionality that needed
   to interface with the current application object in some way. To solve
   this, set up an application context with app.app_context().  See the
   documentation for more information.
   ```
   
   ### Expected results
   
   Celery worker should run the query and store the results in the RESULTS_BACKEND.
   
   ### Actual results
   
   Exception raised (see above).
   
   #### Screenshots
   
   If applicable, add screenshots to help explain your problem.
   
   #### How to reproduce the bug
   
   1. Go to SQL Lab
   2. Run a query against a database with Asynchronous Query Operation enabled
   3. Note that the UI hangs and a result is never returned
   4. Celery worker raises the above error
   
   ### Environment
   
   (please complete the following information):
   
   - superset version: master (acf0753504095a5c0e320b049370aaf6f04e5a4f)
   - python version: 3.6.8
   - node.js version: v12.4.0
   - npm version: 6.9.0
   
   ### Checklist
   
   Make sure these boxes are checked before submitting your issue - thank you!
   
   - [x] I have checked the superset logs for python stacktraces and included it here as text if there are any.
   - [x] I have reproduced the issue with at least the latest released version of superset.
   - [x] I have checked the issue tracker for the same issue and I haven't found one similar.
   
   ### Additional context
   
   Per @craig-rueda, may be related to application context changes in https://github.com/apache/incubator-superset/pull/8418
   

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