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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.
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Forum Posts

appliable_ai
by New Contributor
  • 60 Views
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Models failing in tutorial

Hello,I am following the "Get started: Build your first machine learning model on Databricks" tutorial, and am getting stuck on "Parallel training using Optuna".When I Search runs to retrieve the best model, the following code fails as there are no m...

  • 60 Views
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Anvy
by New Contributor
  • 114 Views
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Whether MCP server support for Genie is available in our workspace/region for free version.

We are building a production support agent that requires seamless integration between:Genie spaces (for analytics queries)Vector search Custom tools The MCP protocol provides a standardized interface for this multi-tool architecture.i am using free t...

  • 114 Views
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Latest Reply
Ashwin_DSA
Databricks Employee
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Hi @Anvy, This depends on whether you are on a standard Databricks workspace or on Databricks Free Edition. The public docs show that Databricks managed MCP servers are currently in Public Preview, and the managed Genie MCP server itself is still lis...

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nepiskopos
by New Contributor III
  • 601 Views
  • 3 replies
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Resolved! AutoML on Databricks as of May 2026

On Azure Databricks, I have been creating AutoML experiments on May 15th 2026, using a Single User compute with Databricks runtime 17.3 LTS for ML, which I have assigned to myself.I try to register one of the trained ML models in a schema, under a un...

  • 601 Views
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Latest Reply
nepiskopos
New Contributor III
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Update: Today, May 19th 2026, the issue seems to have been resolved.I suppose some bug fix has been released.

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sergio-calderon
by New Contributor II
  • 2955 Views
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How to use Databricks secrets on MLFlow conda dependencies?

Hi!Do you know if it's correct to use the plain user and token for installing a custom dependency (an internal python package) in a mlflow registered model? (it's the only way I get it working because if not it can't install the dependency) It works,...

  • 2955 Views
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Froffri
New Contributor II
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Did someone solve this? I'm currently forced to download some libraries using an artifactory pypi mirror. However, I wouldn't want to have my secrets pasted in the conda.yaml file as plain text.

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naveen_marthala
by Contributor
  • 16355 Views
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Resolved! How to PREVENT mlflow's autologging from logging ALL runs?

I am logging runs from jupyter notebook. the cells which has `mlflow.sklearn.autlog()` behaves as expected. but, the cells which has .fit() method being called on sklearn's estimators are also being logged as runs without explicitly mentioning `mlflo...

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Latest Reply
ericholland009
New Contributor II
  • 3 kudos

Good question—mlflow autologging can easily capture more runs than expected if not configured properly. Managing it carefully improves experiment tracking. Similar control and optimization are important in bussid mod workflows, where users fine-tune ...

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tkfm_s
by New Contributor II
  • 570 Views
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Memory error in LightGBM training data processing

I am developing a LightGBM model on Databricks, and I am using the Native API because it offers the widest range of options and allows me to try various approaches.The training data is loaded from a table in the Catalog as a Spark DataFrame. However,...

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tkfm_s
New Contributor II
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Thank you.I will check the document.tkfm_s

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KyraHinnegan
by New Contributor II
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Resolved! Which types of model serving endpoints have health metrics available?

I am retrieving a list of model serving endpoints for my workspace via this API: https://docs.databricks.com/api/workspace/servingendpoints/listAnd then going to retrieve health metrics for each one with: https://[DATABRICKS_HOST]/api/2.0/serving-end...

  • 1403 Views
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johandoc
New Contributor II
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Your observation is correct—this behavior is expected.Endpoints with entity_type = FOUNDATION_MODEL_API do not expose health metrics via the /metrics endpoint, which is why you’re getting 404 responses. These endpoints are fully managed, multi-tenant...

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MattBuck
by New Contributor II
  • 713 Views
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Resolved! AWS GovCloud Feature Availability Question

Hi! I'm trying to determine if Mosaic Vector Search (or is it simply called Vector Search) is available on AWS GovCloud?This shows it is not: https://docs.databricks.com/aws/en/resources/feature-region-supportAnd it's not mentioned here: https://docs...

  • 713 Views
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Latest Reply
szymon_dybczak
Esteemed Contributor III
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Hi @MattBuck ,It's not available on AWS GovCloud.1) The first link you attached is the authoritative source for feature availability by region. If you can't find it there it means the feature is not available in specific region2) And I think this lim...

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nb92
by New Contributor
  • 677 Views
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Resolved! Recommended Python UDFs for On-Demand Feature Computation in Databricks

The Databricks documentation page on on-demand feature computation (https://docs.databricks.com/aws/en/machine-learning/feature-store/on-demand-features#what-are-on-demand-features) mentions using Python UDFs for computing on-demand features. What ty...

  • 677 Views
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aleksandra_ch
Databricks Employee
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HI @nb92 , Only Scalar Python UDFs are allowed for on-demand feature computation. This page provides the recommended approach.  Best regards,

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thomasm
by New Contributor III
  • 1543 Views
  • 7 replies
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MLFlow Detailed Trace view doesn't work in some workspaces

I've created a Databricks Model Serving Endpoint which serves an MLFlow Pyfunc model. The model uses langchain and I'm using mlflow.langchain.autolog().At my company we have some production(-like) workspaces where users cannot e.g. run Notebooks and ...

thomasm_1-1767785859607.png thomasm_0-1767785737567.png thomasm_2-1767785939124.png
  • 1543 Views
  • 7 replies
  • 3 kudos
Latest Reply
lkt1
New Contributor III
  • 3 kudos

Funnily enough, the problem also disappeard on my end this morning Previously, I saw a networking issue in my logs, but that also went away. Let's hope it stays that way! 

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pfzoz
by New Contributor
  • 3216 Views
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Resolved! Using Qwen with vLLM

There are many conflict and dependency issues when trying to install VLLM and use the Qwen models (on serverless), even the v2 families.I tried following this guide https://docs.databricks.com/aws/en/machine-learning/sgc-examples/tutorials/sgc-raydat...

  • 3216 Views
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Latest Reply
anuj_lathi
Databricks Employee
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Hi @pfzoz -- the "Model architectures failed to be inspected" error you are hitting is a well-known compatibility issue between vLLM, the transformers library, and the Qwen2/2.5-VL model family. The root cause is that vLLM's model registry subprocess...

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thomas_berry
by Databricks Partner
  • 1469 Views
  • 3 replies
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Resolved! TrainingArguments fails

Hello,I am working on an ML project for text classification and I have a problem.The following piece of code stalls completely. It prints 'start' but never 'end'.from transformers import TrainingArguments print("start") args = TrainingArguments(outpu...

  • 1469 Views
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thomas_berry
Databricks Partner
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Hello @lingareddy_Alva ,Thank you for your reply. I have since been given a cluster with the ML Runtime and the code now works. So I consider the problem solved.

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TomBurns
by New Contributor
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Identity Resolution

Looking for best solutions for identity resolution. I already have deterministic matching. Exploring probabilistic solutions. Any advice for me?

  • 2554 Views
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Latest Reply
Sonal
New Contributor III
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Check open source Zingg which runs natively within Databricks https://github.com/zinggAI/zingg

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ruia-dojo
by New Contributor
  • 432 Views
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Job compute fails due to BQ permissions

Hello,My databricks workspace is associated to GCP project analytics.But me and my team mostly work on GCP project data-science, which contains the only BQ dataset that we have write access to.I'm trying to automate a pipeline to run on job compute a...

  • 432 Views
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Latest Reply
MoJaMa
Databricks Employee
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What identity is the job running as? Do you have any settings on the all-purpose cluster that you are not setting on the job-cluster? Maybe you need to provide roles/bigquery.jobUser on project analytics to the job compute service account?

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knight22-21
by New Contributor II
  • 1665 Views
  • 3 replies
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Resolved! Unable to Access Azure Blob Storage from Databricks Community Edition Notebook

Hi everyone,I’m currently using the Databricks Community Edition and trying to access data stored in Azure Blob Storage from my .ipynb notebook. The storage account is part of my student free Azure subscription.However, I’m not able to establish a co...

  • 1665 Views
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Latest Reply
emma_s
Databricks Employee
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Hi, I think you are referring to Databricks Free edition, in which case this doesn't support the connection to external storage such as Azure Blob storage. Thanks,Emma

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