[GitHub] rjpereira opened a new issue #3557: "Results backend isn't configured" with Celery DynamoDB backend

[gi...@git.apache.org]

rjpereira opened a new issue #3557: "Results backend isn't configured" with Celery DynamoDB backend
URL: https://github.com/apache/incubator-superset/issues/3557
 
 
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   - [X] I have checked the superset logs for python stacktraces and included it here as text if 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
   
   ### Superset version
   
   0.20.0 from pypi
   
   ### Expected results
   
   Successful completion of async query
   
   ### Actual results
   
   Get "Results backend isn't configured." in UI, no error log on console. Celery processing seems successfull
   
   ### Steps to reproduce
   
   The following is my Celery configuration on superset_config.py.
   All the AWS configuration seems to be working ok:
   a) I see the request being deposited on queue
   b) I see the worker executing the query and queue becoming empty
   c) I see the result of the query being appended to DynamoDB table
   
   ```
   class CeleryConfig(object):
       BROKER_URL = 'sqs://'
       BROKER_TRANSPORT_OPTIONS = {
           'region': os.environ.get('AWS_DEFAULT_REGION','eu-west-1')
       }
       CELERY_RESULT_BACKEND = 'dynamodb://@/celery_results?read=5&write=5'
       CELERY_IMPORTS = ('superset.sql_lab', )
       CELERY_ANNOTATIONS = {'tasks.add': {'rate_limit': '10/s'}}
   ```
   
   Still after everything seeming to work ok, no error on console, I get "Results backend isn't configured" on UI.
   
   
 
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