The Thundering Herd Problem in Distributed Systems→
Three ways a thundering herd shows up in production — retry storms, cache stampedes, and planned traffic spikes — and how the industry actually deals with each ...
hovanhoa · blog
Writing.
Notes on software engineering, distributed systems, and lessons from building things — with the occasional life update in between.
11 posts8 tags
Building an AI agent in Go→
What an AI agent actually is once you strip away the hype — a model, a set of tools, and a loop. I build a small tool-calling agent in Go from scratch.
February 16, 2026life
2025 Rewind→
A quiet reflection on a year of change — switching companies, traveling almost every month, and learning to keep going.
February 18, 2025testing
Load Testing with K6→
How I used k6 to measure and validate response-time improvements after optimizing our product search engine.
January 17, 2025life
Looking back on 2024→
A personal reflection on a difficult year of change, self-doubt, learning, and slowly finding direction again.
January 14, 2025golang
Live Reloading in Go→
A quick guide to setting up Air for live reload in Go projects to avoid manual restarts during development.
December 28, 2024system design
The CAP Theorem→
A practical explanation of CAP theorem, trade-offs between consistency and availability, and a simple proof intuition.
Snowflake ID generator in distributed systems→
A comparison of distributed ID generation strategies and why Twitter Snowflake was the best fit for my URL shortener.
Building a URL Shortener Service using Golang→
How to design and implement a TinyURL-like service with Go, Gin, GORM, Redis, and PostgreSQL.
Concurrency in Golang→
A practical introduction to Go concurrency concepts, including goroutines, channels, select, and wait groups.