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Databricks Platform Discussions
Dive into comprehensive discussions covering various aspects of the Databricks platform. Join the conversation to deepen your understanding and maximize your usage of the Databricks platform.
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Data Engineering

Join discussions on data engineering best practices, architectures, and optimization strategies with...

12527 Posts

Data Governance

Join discussions on data governance practices, compliance, and security within the Databricks Commun...

557 Posts

Generative AI

Explore discussions on generative artificial intelligence techniques and applications within the Dat...

449 Posts

Machine Learning

Dive into the world of machine learning on the Databricks platform. Explore discussions on algorithm...

1041 Posts

Warehousing & Analytics

Engage in discussions on data warehousing, analytics, and BI solutions within the Databricks Communi...

710 Posts

Activity in Databricks Platform Discussions

KKo
by > Contributor III
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Real time pipelines

How do you design high-volume real-time pipelines that need to stay reliable under load spikes?

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ThomazNeto
Databricks Partner
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Big question, but in my experience it comes down to five decisions. Opinionated take:1. Put a buffer in front, always. Kafka/Kinesis/Event Hubs between producers and Spark. The broker absorbs the spike; your pipeline drains at its own pace. A pipelin...

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binlogreader
by > New Contributor II
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Streaming tables vs materialized views in declarative pipelines: what actually decides the choice?

I am trying to settle a design default for our declarative pipelines, and I would like to hear how others decide between streaming tables and materialized views when a table could be built either way.When I started with streaming tables, I thought th...

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ThomazNeto
Databricks Partner
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Good points, Brahmareddy — and I think we mostly agree, with one nuance worth teasing out on the cross-team part.A published streaming table already *is* a stable Delta table from the reader's perspective — consumers query it by its UC name and never...

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Kayla
by > Valued Contributor II
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Disable spark transformations inside try except warning

I'm wondering if there's a way to suppress certain errors? I have a lot of spammy yellow underlining from this one warning, and it doesn't seem that the warning behaves properly. Transformation inside try/except block is lazy, fine, I have actions on...

Kayla_0-1785436282119.png
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adnan_alvee
Databricks Employee
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Can u try this in your toml file? [tool.databricks.flint] ignore = ["SCPAP005"]

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ali_lmalki
by > New Contributor
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Genie Ontology

One question that came to mind regarding Genie Ontology is its level of automated curation. From what I've seen, Databricks appears to be taking a different approach from many vendors, where ontologies are often manually designed.Are there meaningful...

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Lu_Wang_ENB_DBX
Databricks Employee
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Answers: Automated curation trade-off: the upside is low setup; the downside is less explicit control. Genie ranks and conflict-resolves snippets automatically, so if your sources are inconsistent or ambiguous, you still need to review and clean up ...

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MageshS
by > New Contributor II
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Traffic split behavior when traffic_percentage values across served entities sum to more than 100%

Hi all,I'm configuring a Model Serving endpoint with two served entities and ran into some unexpected behavior while testing different traffic_config splits.When I set traffic_percentage to 100 for each of the two served entities (so the total sums t...

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emma_s
Databricks Employee
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Hi,   Just been looking into this for you. All the docs I found suggested it would reject to I tried testing it myself. I tried setting traffic_config with various percentage combinations that don't sum to 100, on both Azure and AWS: Config (A / B) ...

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ShivannaGundana
by > Visitor
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Databricks AWS Worker Nodes Not Registering with AWS Systems Manager (SSM)

Hi Team,We are investigating an issue where Databricks worker instances running on AWS are not registering with AWS Systems Manager (SSM).EnvironmentDatabricks Runtime: 17.3 LTSWorker OS: Ubuntu 24.04AWS EC2 worker instances launched by DatabricksIAM...

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ThomazNeto
Databricks Partner
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Honest answers first, then a debugging path — because part of this simply isn't documented, and I'd rather say so than guess.1. Is the SSM Agent expected in DBR images? I found no Databricks documentation committing to include it, and your own findin...

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lausikh
by > New Contributor
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What happens to with SCD2 tables if the source pipeline performs a Full Refresh?

Hi everyone,I'm looking for clarification on how Lakeflow/DLT behaves in the following scenario.We have two independent pipelines:Pipeline 1 (Ingestion)Ingests Salesforce objects into Delta tables.These tables represent the current snapshot of Salesf...

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AbhilashNagilla
Databricks Employee
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The pattern is documented and you are right not to full refresh pipeline 2, but as written the deletion detection can never fire, and the full refresh is not why. spark.readStream.table("raw.contact") makes contact append-only, so no key ever leaves ...

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jwilliam
by > Contributor
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Resolved! Has Unity Catalog been available in Azure Gov Cloud?

We are using Databricks with Premium Tier in Azure Gov Cloud. We check the Data section but don't see any options to Create Metastore.

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zealmurali
Visitor
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Does Azure.us.gov support Unity Catalog now?

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yutmurakami
by > Visitor
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Databricks Apps - "App Not Available" error with locationId parameter missing

Hello,I'm experiencing an issue with Databricks Apps where I cannot access my deployed app from a browser, even though the app appears to be running successfully.**Symptoms:**- Browser shows "App Not Available" error when accessing the app URL- Conso...

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ThomazNeto
Databricks Partner
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Nice progress — with compute ACTIVE and the app RUNNING, we've eliminated the original cause and narrowed this down to the auth/access layer. A few thoughts:First, one thing in your test that's easy to over-read: the Python requests behavior is actua...

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dax60
by > Visitor
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Resolved! Visual Data Prep - Missing rows when loading tables

Hi,I'm experiencing an issue with Visual Data Prep where some source tables appear to contain fewer rows than expected.When I query the same tables directly using SQL, I can see all records. However, when loading certain tables into Visual Data Prep ...

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balajij8
Esteemed Contributor
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Hi dax60,What you are seeing comes down to the difference between processing limits and UI rendering limits in Visual Data Prep. When you set Rows scanned to Max you are instructing the engine to process all records from the source table for your int...

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ajaygshah
by > New Contributor III
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Resolved! Getting error in databricks agent response

I have selected a non-instruct model: databricks-qwen35-122b-a10b. Although the model doesn't matter. So when I type anything in the chat UI after deployment, the response is always along these lines:{ "detail": "1 validation error for ResponseOutp...

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ajaygshah
New Contributor III
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Hello! So I am using the built-in code when we initiate the databricks custom app using agent. After tweaking and using AI by Gemini and Claude, I was finally able to start the conversation and receive the response! Sharing the code below for anyone ...

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Niyojit
by > New Contributor II
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Resolved! Context engineering for Genie

Hello Team,I have a client who is already using Genie One and Genie Agents, and I want to help them build a strong context layer to improve the quality and accuracy of responses.I'm looking for guidance on the overall approach and best practices for ...

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Niyojit
New Contributor II
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Thanks!!

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Nimanita
by > New Contributor II
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Resolved! UI sends empty managed_identity_id, breaks storage credential creation with system-assigned Access

Environment:Cloud: AzureDatabricks Account Console (accounts.azuredatabricks.net)Access Connector: system-assigned managed identity (no user-assigned identity involved)Region: East USIssue:Creating a Unity Catalog storage credential via the Account C...

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Chaitanya1905
New Contributor II
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Thanks for pointing me in the right direction! That was indeed the issue.For anyone else who runs into the same problem, here's what worked for me using the Databricks Account CLI.1. Install Databricks CLIwinget install Databricks.DatabricksCLI2. Log...

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ChristianRRL
by > Honored Contributor II
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CREATE CONNECTION - Support for Community Connections?

Hi there, as the title asks, I'm wondering how Databricks Community Connections are being supported. For example, when I try to make a fresh connection via Spark SQL commands, I get an error because `COMMUNITY` type is not supported.However, when I c...

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adnan_alvee
Databricks Employee
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Hi @ChristianRRL  I tried with FHIR and it worked. The process is the same for every source. To do GitHub instead of the FHIR example, you change exactly three things, the connector name (github), the credential (a GitHub token), and the list of tabl...

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skipowder99
by > Databricks Partner
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Collation Change Planning & Fixing

We recently decided to change from the default collation of UTF8_BINARY to UTF8_LCASE and there are many issues.  We attempted to cascade the collation defaults to all the Catalogs, Schemas, Tables, Views and Columns, but we still seem to have expres...

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balajij8
Esteemed Contributor
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Hi skipowder99,When you set a DEFAULT COLLATION at the catalog or schema level, it is forward looking. It does not retroactively apply to existing tables, columns or views. It leaves you with a split environment the newly created objects default to U...

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