VuTrinh.

A 9-minute simple explanation of Spark Shuffle

What is it, when it happens, the details of the shuffle process behind the scenes and how can we optimize it

Feb 3 • Vu Trinh

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1

January 2026

I spent 8 hours understanding which factors make Flink a robust stream processing engine.

This article is my 8-mins note of my finding

Jan 27 • Vu Trinh

10

I spent 5 hours learning Unity Catalog. Here’s everything you need to know.

The famous catalog service from Databricks, and it was open-sourced

Jan 21 • Vu Trinh

20

4

The 6 questions you must answer when building a Lakehouse from scratch

From table format, query engines, storage layout to developer expereience

Jan 20 • Vu Trinh

17

1

Why single-node engines like DuckDB and Polars are getting a lot of attention?

From cluster-based engines like MapReduce or Spark to the claim "Big Data is dead"

Jan 13 • Vu Trinh

16

A strategy for doing a side project that would actually get you a job.

Having fun, learning skills and getting (a better) job

Jan 6 • Vu Trinh

17

December 2025

7 insights to help you learn any OLAP systems

Before learning BigQuery, Databricks, Snowflake, Redshift, DuckDB, Clickhouse,.. you must read this.

Dec 30, 2025 • Vu Trinh

28

3

I spent 8 hours learning the semantic layer

Can it resolve messy data problems for your organization?

Dec 23, 2025 • Vu Trinh

24

2

1

Everything you need to know about LLMs

...as a data engineer

Dec 16, 2025 • Vu Trinh

18

1

9 lessons that will put you 3 years ahead as a data engineer

It took me six years to distill these insights, but you can read them in just 10 minutes.

Dec 9, 2025 • Vu Trinh

35

1

A framework I use to build a data pipeline.

You cannot simply say, "I'll use Spark, Kafka, and so on"; you need to ask clarifying questions to gather information for proposing a robust data…

Dec 2, 2025 • Vu Trinh

24

November 2025

Alert: Get 50% off the yearly package this Black Friday

Final discount of the year.

Nov 25, 2025 • Vu Trinh

3