Why I stopped guessing at Spark and dbt config values
I've spent more than a decade building data pipelines, and the part nobody warns you about isn't the pipeline logic. It's the tuning. Executor memor…
Testing & QA
⚑ Report a ProblemLatest Testing & QA news from Tech News
All topics
agents
ai
api
architecture
automation
backend
beginners
career
claude
cybersecurity
devchallenge
devops
discuss
javascript
llm
machinelearning
mcp
node
opensource
performance
productivity
programming
python
security
showdev
softwareengineering
testing
tutorial
typescript
webdev
Broadcast Joins vs. Sort-Merge Joins: Choosing the Right Join Strategy in Apache Spark
In distributed data processing systems such as Apache Spark, joins are among the most expensive operations. The strategy used to join datasets can s…
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 w…