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Spark Performance Deep Dive on Databricks: Shuffle Tuning, Skew Handling, and Z-Ordering with Delta Lake + Unity Catalog

The problem with "just add more workers" Most Spark performance issues on Databricks aren't solved by scaling the cluster — they're caused by shuffle …

databrickssparkpythonperformance
Dev.to Jul 27, 2026, 03:14 UTC
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One Copy, Two Engines: Architecting a Governed Lakehouse Across Fabric and Azure Databricks

For most of the last decade, the honest answer to "should we standardize on Databricks or on the Microsoft data platform?" was: pick one and live with…

dataengineeringazuredatabricksarchitecture
Dev.to Jul 23, 2026, 23:15 UTC
EN

🔐 Storage Credentials in Databricks Unity Catalog (AWS) — The Security Backbone You Can't Ignore

As organisations move to the Databricks Lakehouse Platform on AWS, two priorities consistently surface at the top of every architecture conversation: …

databricksawsdataengineeringdeltlake
Dev.to Jul 23, 2026, 10:03 UTC
EN

How to Query Databricks from Salesforce Apex (Without Copying a Billion Rows)

The problem We had a reference dataset in Databricks with 1B+ rows . Users needed to look up a handful of those rows from a Salesforce record page. Th…

salesforcedatabricksapexintegration
Dev.to Jul 21, 2026, 09:05 UTC
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[Databricks on AWS #0] The Target Architecture: Isolating Prod, Dev, and Sandbox with Unity Catalog

📚 Series: Databricks on AWS (Part 0, prologue) The Target Architecture ← you are here Building a Databricks AI Platform on AWS RBAC with Function-Role…

databrickslakehousedataengineeringgovernance
Dev.to Jul 2, 2026, 00:34 UTC
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Azure Databricks vs Microsoft Fabric: An Honest Guide to When to Use What

If you're building a data platform on Azure in 2026, you're going to be asked this question: Azure Databricks or Microsoft Fabric? Both run on Delta L…

azuredatabricksfabricspark
Dev.to Jun 29, 2026, 18:18 UTC
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Azure Databricks for MLOps and Feature Engineering at Scale with Apache Spark, Delta Lake, and MLflow

Raw data doesn't win model competitions. Features do. And when your raw data is tens of billions of rows sitting across multiple sources, you can't af…

azuredatabrickssparkmlops
Dev.to Jun 28, 2026, 01:35 UTC
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How I Built a Databricks AI Agent with No Custom Tables (OpenAI Agents SDK + Gradio)

Most Databricks agent tutorials start with "set up Unity Catalog and Vector Search first." This one doesn't. I built a fully working conversational ag…

databricksagenticdatabricksapptutorial
Dev.to Jun 26, 2026, 22:27 UTC
EN

Real-Time AI Feature Engineering with Spark Structured Streaming and Databricks Feature Store

Building point-in-time correct, production-grade feature pipelines — from raw Kafka events to online feature serving in milliseconds, using Spark Stru…

databrickssparkaipython
Dev.to Jun 24, 2026, 09:41 UTC
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How I debugged a Delta Lake DESCRIBE HISTORY timeout (and what's actually causing it)

If you have ever run DESCRIBE HISTORY on a Delta table that receives streaming data every 60 seconds and watched it either hang for hours or crash wit…

dataengindatabricksapachesparkdeltalake
Dev.to May 4, 2026, 06:13 UTC

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