Showing results for 
Search instead for 
Did you mean: 
Machine Learning
Dive into the world of machine learning on the Databricks platform. Explore discussions on algorithms, model training, deployment, and more. Connect with ML enthusiasts and experts.
Showing results for 
Search instead for 
Did you mean: 

MLFlow Remote model registry connection is not working in Databricks

New Contributor III

Dear community,

I am having multiple Databricks workspaces in my azure subscription, and I have one central workspace. I want to use the central workspace for model registry and experiments tracking from the multiple other workspaces.

So, If I am training and registering some model from any of the workspaces, it should register inside my central workspace.

I am following the following notebook for the same, but I am getting this error whenever I create register model.

MlflowException: API request to endpoint /api/2.0/mlflow/runs/create failed with error code 404 != 200. Response body: ''

I am not able to find any solution. Please guide me.

Thanks in advance.


Valued Contributor

Hello, This looks like a bug with the command MlflowClient().get_latest_versions("SOME_REGISTERED_MODEL")

Please check this:

Not applicable

@Kumar Shanu​ :

The error you are seeing (API request to endpoint /api/2.0/mlflow/runs/create failed with error code 404 != 200) suggests that the API endpoint you are trying to access is not found. This could be due to several reasons, such as incorrect authentication, wrong endpoint URL, or missing permissions.

To troubleshoot this issue, you can try the following steps:

  1. Double-check that you have correctly set up the connection to the central workspace in the MLFLOW_TRACKING_URI environment variable. The URI should be in the format databricks://<profileName>@<workspaceUrl>
  2. Ensure that the central workspace has the necessary permissions to create runs and register models from the other workspaces. You can check this by going to the workspace settings in the Databricks UI and verifying that the relevant permissions are enabled.
  3. Verify that the API endpoint /api/2.0/mlflow/runs/create exists in the central workspace by checking the API documentation or using a REST client to make a test request.
  4. Check the Databricks workspace logs to see if there are any additional error messages or clues as to why the API request is failing.

Join 100K+ Data Experts: Register Now & Grow with Us!

Excited to expand your horizons with us? Click here to Register and begin your journey to success!

Already a member? Login and join your local regional user group! If there isn’t one near you, fill out this form and we’ll create one for you to join!