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Data Engineering
Join discussions on data engineering best practices, architectures, and optimization strategies within the Databricks Community. Exchange insights and solutions with fellow data engineers.
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Forum Posts

GANAPATI_HEGDE
by New Contributor III
  • 261 Views
  • 3 replies
  • 0 kudos

Unable to configure custom compute for DLT pipeline

I am trying to configure cluster for a pipeline like above, However dlt keeps using the small cluster as usual, how to resolve this? 

GANAPATI_HEGDE_0-1762754316899.png GANAPATI_HEGDE_1-1762754398253.png
  • 261 Views
  • 3 replies
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Latest Reply
GANAPATI_HEGDE
New Contributor III
  • 0 kudos

i updated my CLI and deployed the job, still i dont see the clusters updates in  pipeline

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hgm251
by New Contributor II
  • 319 Views
  • 3 replies
  • 3 kudos

badrequest: cannot create online table is being deprecated. creating new online table is not allowed

Hello!This seems so sudden that we cannot create online tables anymore? Is there a workaround to being able to create online tables temporarily as we need more time to move to synced tables? #online_tables 

  • 319 Views
  • 3 replies
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Latest Reply
nayan_wylde
Esteemed Contributor
  • 3 kudos

Yes, the Databricks online tables (legacy) are being deprecated, and after January 15, 2026, you will no longer be able to access or create them.https://docs.databricks.com/aws/en/machine-learning/feature-store/migrate-from-online-tablesHere are few ...

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pooja_bhumandla
by New Contributor III
  • 258 Views
  • 3 replies
  • 1 kudos

Best Practice for Updating Data Skipping Statistics for Additional Columns

Hi Community,I have a scenario where I’ve already calculated delta statistics for the first 32 columns after enabling the dataskipping property. Now, I need to include 10 more frequently used columns that were not part of the original 32.Goal:I want ...

  • 258 Views
  • 3 replies
  • 1 kudos
Latest Reply
szymon_dybczak
Esteemed Contributor III
  • 1 kudos

Hi @pooja_bhumandla ,Updating any of two below options does not automatically recompute statistics for existing data. Rather, it impacts the behavior of future statistics collection when adding or updating data in the table.- delta.dataSkippingNumInd...

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absan
by Contributor
  • 194 Views
  • 4 replies
  • 6 kudos

How integrate unique PK expectation into LDP pipeline graph

Hi everyone,I'm working on a LDP and need help ensuring a downstream table only runs if a primary key unique validation check passes. In something like dbt this is very easy to configure but with LDP it seems to require creating a separate view. Addi...

  • 194 Views
  • 4 replies
  • 6 kudos
Latest Reply
Hubert-Dudek
Esteemed Contributor III
  • 6 kudos

I know your solution is quite popular (just I don't get SELECT MAX(load_date) ). Another one is to use AUTO CDC even if you don't have CDC, as there is KEY option. If MAX(load_date) means that the last snapshot is most essential for you, please check...

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ismaelhenzel
by Contributor III
  • 274 Views
  • 5 replies
  • 5 kudos

Resolved! delta live tables - collaborative development

I would like to know the best practice for collaborating on a Delta Live Tables pipeline. I was thinking that each developer should have their own DLT pipeline in the development workspace. Currently, each domain has its development catalog, like sal...

  • 274 Views
  • 5 replies
  • 5 kudos
Latest Reply
Poorva21
New Contributor II
  • 5 kudos

Yes—each developer should have their own DLT pipeline and their own schema. It’s the correct paradigm.It keeps DLT ownership clean and prevents pipeline conflicts.Dev naming doesn’t need to be pretty; QA/Prod are where structure matters.

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excavator-matt
by Contributor
  • 227 Views
  • 3 replies
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ABAC tag support for for Streaming tables (Spark Lakeflow Declarative Pipelines)?

Hi!We're using Spark Lakeflow Declarative Pipelines for ingesting data from various data sources. However, in order to achieve compliance with GDPR, we are planning to start using ABAC tagging.However, I don't understand how we are supposed to use th...

Data Engineering
abac
LakeFlow
Streaming tables
tags
  • 227 Views
  • 3 replies
  • 1 kudos
Latest Reply
excavator-matt
Contributor
  • 1 kudos

Correction. Trying this will result in this error> ABAC policies are not supported on tables defined within a pipeline. Remove the policies or contact Databricks support.So it isn't supported

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feliximmanuel
by New Contributor II
  • 2736 Views
  • 2 replies
  • 2 kudos

Error: oidc: fetch .well-known: Get "https://%E2%80%93host/oidc/.well-known/oauth-authorization-serv

I'm trying to authenticate databricks using WSL but suddenly getting this error./databricks-asset-bundle$ databricks auth login –host https://<XXXXXXXXX>.12.azuredatabricks.netDatabricks Profile Name:<XXXXXXXXX>Error: oidc: fetch .well-known: Get "ht...

  • 2736 Views
  • 2 replies
  • 2 kudos
Latest Reply
guptadeepak
New Contributor
  • 2 kudos

Great, these are amazing resources! I'm using them to test my IAM apps and flow.

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1 More Replies
seefoods
by Valued Contributor
  • 142 Views
  • 1 replies
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setup databricks connect on VsCode and PyCharm

Hello Guyz,Someone Know what's is the best pratices to setup databricks connect for Pycharm and VsCode using Docker, Justfile and .env file Cordially, Seefoods

  • 142 Views
  • 1 replies
  • 1 kudos
Latest Reply
Gecofer
Contributor
  • 1 kudos

Hi @seefoods!I’ve worked with Databricks Connect and VSCode in different projects, and although your question mentions Docker, Justfile and .env, the “best practices” really depend on what you’re trying to do. Here’s what has worked best for me:1.- D...

  • 1 kudos
saicharandeepb
by Contributor
  • 172 Views
  • 1 replies
  • 2 kudos

Decision Tree for Selecting the Right VM Types in Databricks – Looking for Feedback & Improvements!

Hi everyone,I’ve been working on an updated VM selection decision tree for Azure Databricks, designed to help teams quickly identify the most suitable worker types based on workload behavior. I’m sharing the latest version (In this updated version I’...

saicharandeepb_0-1763118168705.png
  • 172 Views
  • 1 replies
  • 2 kudos
Latest Reply
Sahil_Kumar
Databricks Employee
  • 2 kudos

Hi saicharandeepb, You can enrich your chart by adding GPU-accelerated VMs. For computationally challenging tasks that demand high performance, like those associated with deep learning, Azure Databricks supports compute resources that are accelerated...

  • 2 kudos
singhanuj2803
by Contributor
  • 253 Views
  • 4 replies
  • 1 kudos

Troubleshooting Azure Databricks Cluster Pools & spot_bid_max_price Validation Error

Hope you’re doing well!I’m reaching out for some guidance on an issue I’ve encountered while setting up Azure Databricks Cluster Pools to reduce cluster spin-up and scale times for our jobs.Background:To optimize job execution wait times, I’ve create...

  • 253 Views
  • 4 replies
  • 1 kudos
Latest Reply
Poorva21
New Contributor II
  • 1 kudos

Possible reasons:1. Setting spot_bid_max_price = -1 is not accepted by Azure poolsAzure Databricks only accepts:0 → on-demand onlypositive numbers → max spot price-1 is allowed in cluster policies, but not inside pools, so validation never completes....

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3 More Replies
Eduard
by New Contributor II
  • 118421 Views
  • 6 replies
  • 1 kudos

Cluster xxxxxxx was terminated during the run.

Hello,I have a problem with the autoscaling of a cluster. Every time the autoscaling is activated I get this error. Does anyone have any idea why this could be?"Cluster xxxxxxx was terminated during the run (cluster state message: Lost communication ...

  • 118421 Views
  • 6 replies
  • 1 kudos
Latest Reply
marykline
New Contributor II
  • 1 kudos

Hello Databricks Community,The driver node was lost, which might occur as a result of network problems or malfunctioning instances, according to the error message. Here are some potential causes and remedies:Instance Instability: Consider switching t...

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molopocho
by New Contributor
  • 169 Views
  • 1 replies
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Can't create a new ETL because of compute (?)

I just create a databricks workspace with GCP with "Use existing cloud account (Storage & compute)" option. I already add a few cluster for my task but when i try to create ETL, i always get this error notification. The file is created on the specifi...

molopocho_0-1764086991435.jpeg
  • 169 Views
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Latest Reply
Saritha_S
Databricks Employee
  • 0 kudos

Hi @molopocho  We need to enable the feature in the workspace. If you don't see the option, then you need to reach out to the accounts team or create a ticket to databricks support team t get it enabled at the workspace level.   

  • 0 kudos
Poorva21
by New Contributor II
  • 218 Views
  • 1 replies
  • 1 kudos

Best Practices for Optimizing Databricks Costs in Production Workloads?

Hi everyone,I'm working on optimizing Databricks costs for a production-grade data pipeline (Spark + Delta Lake) on Azure. I’m looking for practical, field-tested strategies to reduce compute and storage spend without impacting performance.So far, I’...

  • 218 Views
  • 1 replies
  • 1 kudos
Latest Reply
K_Anudeep
Databricks Employee
  • 1 kudos

Hello @Poorva21 , Below are the answers to your questions: Q1. What are the most impactful cost optimisations for production pipelines? I have worked with multiple Cx and based on my knowledge, below are a high-level optimisations one must have: The ...

  • 1 kudos
Jpeterson
by New Contributor III
  • 6338 Views
  • 9 replies
  • 4 kudos

Databricks SQL Warehouse, Tableau and spark.driver.maxResultSize error

I'm attempting to create a tableau extract on tableau server with a connection to databricks large sql warehouse. The extract process fails due to spark.driver.maxResultSize error.Using a databricks interactive cluster in the data science & engineer...

  • 6338 Views
  • 9 replies
  • 4 kudos
Latest Reply
CallumDean
New Contributor II
  • 4 kudos

I ran into a similar issue exporting data from Databricks to a BI tool. What helped was limiting columns, aggregating before export, and splitting large extracts into smaller chunks instead of one massive pull. I also test such tweaks in a safer envi...

  • 4 kudos
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