Rasa X (0.33.2) on Kubernetes: rasa-production cannot fetch model from rasa-x


I am facing an issue while running Rasa X setup on Kubernetes. Specifically, the rasa-production Pod can not fetch a model from the rasa-x endpoint http://acc-bot-rasa-x-rasa-x:5002/api/projects/default/models/tags/production.

I have double checked that there is a model on rasa x server. This is the full error message when rasa-production Pod starts:

2020-11-30 17:22:31 INFO     root  - Starting Rasa server on http://localhost:5005
2020-11-30 17:22:31 DEBUG    rasa.core.utils  - Using the default number of Sanic workers (1).
2020-11-30 17:22:31 INFO     root  - Enabling coroutine debugging. Loop id 94704641788752.
2020-11-30 17:22:31 DEBUG    root  - Could not load interpreter from 'None'.
2020-11-30 17:22:31 DEBUG    rasa.core.brokers.broker  - Instantiated event broker to 'PikaEventBroker'.
2020-11-30 17:22:31 DEBUG    rasa.core.tracker_store  - Connected to RedisTrackerStore.
2020-11-30 17:22:31 DEBUG    rasa.core.lock_store  - Connected to lock store 'InMemoryLockStore'.
2020-11-30 17:22:31 DEBUG    rasa.core.nlg.generator  - Instantiated NLG to 'TemplatedNaturalLanguageGenerator'.
2020-11-30 17:22:31 ERROR    rasa.core.agent  - Could not load model due to http://acc-bot-rasa-x-rasa-x:5002/api/projects/default/models/tags/production.
/opt/venv/lib/python3.7/site-packages/rasa/shared/utils/io.py:93: UserWarning: The model at 'None' could not be loaded. Error: http://acc-bot-rasa-x-rasa-x:5002/api/projects/default/models/tags/production
/opt/venv/lib/python3.7/site-packages/rasa/shared/utils/io.py:93: UserWarning: Agent could not be loaded with the provided configuration. Load default agent without any model.
2020-11-30 17:22:31 DEBUG    rasa.core.nlg.generator  - Instantiated NLG to 'TemplatedNaturalLanguageGenerator'.
2020-11-30 17:22:31 INFO     root  - Rasa server is up and running.

To me the strange the strange thing is the two “None” that appear when the program tries to load interpreter and model. Lookig at the code in rasa.core.agent module it seems there is actually supposed to be a model_path that seems to be None here. However at the same time, the exception raised is the link to the rasa model server, from where it should download the model…

Help highly appreciated. Thanks!

Hi @martin.m, you’re correct, and good debugging! A micro release has been patched to both 2.0.x and 2.1.x to fix this issue. So depending on which Rasa Open Source version you are currently running, you should upgrade to 2.0.8 or 2.1.2 to fix this issue :slight_smile:

Hi Ella,

thanks for the quick response. Changing the Rasa OS version somehow did not occur to me… I will try it, thanks.

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