Hi,
I have deployed an endpoint in Databricks using legacy serving. I am using the custom pyfunc in mlflow to deploy the custom code. This code uses Machine Learning to parse out the table of contents in some pdf files then returns the table of contents in a csv. Not your typical scoring/prediction model. While I was able to get the code deployed using legacy serving, I am having issues querying the endpoint. I receive the following error from the cluster log:
AttributeError: 'NoneType' object has no attribute 'split'
2024/05/07 13:51:16 ERROR mlflow.pyfunc.scoring_server: Exception on /invocations [POST]
Traceback (most recent call last):
File "/databricks/conda/envs/model-1/lib/python3.10/site-packages/flask/app.py", line 1473, in wsgi_app
response = self.full_dispatch_request()
File "/databricks/conda/envs/model-1/lib/python3.10/site-packages/flask/app.py", line 882, in full_dispatch_request
rv = self.handle_user_exception(e)
File "/databricks/conda/envs/model-1/lib/python3.10/site-packages/flask/app.py", line 880, in full_dispatch_request
rv = self.dispatch_request()
File "/databricks/conda/envs/model-1/lib/python3.10/site-packages/flask/app.py", line 865, in dispatch_request
return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args) # type: ignore[no-any-return]
File "/databricks/conda/envs/model-1/lib/python3.10/site-packages/mlflow/server/handlers.py", line 508, in wrapper
return func(*args, **kwargs)
File "/databricks/conda/envs/model-1/lib/python3.10/site-packages/mlflow/pyfunc/scoring_server/__init__.py", line 443, in transformation
result = invocations(data, content_type, model, input_schema)
File "/databricks/conda/envs/model-1/lib/python3.10/site-packages/mlflow/pyfunc/scoring_server/__init__.py", line 302, in invocations
type_parts = list(map(str.strip, content_type.split(";")))
AttributeError: 'NoneType' object has no attribute 'split'
From what I understand of this error is that my content_type header appears to be a "none" object. When I try to query the model code via postman I have a content type of application/json. Also my request body is empty..any ideas?
