Archives

Last time I explained what gRPC is — this time I actually put it to the test.

Not satisfied with the textbook definition — let's walk through how to actually use it, step by step.

One big investigation, and I'll dig your entire performance problem straight out of the ground.

Learn Prometheus well — it won't burst out of a pregnant woman's chest.

What's up... is your API made of gold, or are the third-party modules made of gold?

You say there's a problem, so there's a problem? Says who, you baka.

The database has caches of its own. A look at the Buffer Pool — still indispensable today — and the Query Cache, which once existed but was finally removed in MySQL 8.0.

What is the second-level cache? How do you use it? And why do we rarely hear about it these days?

Install Node.js, scaffold a project with Vite, understand JSX and components, then build a Greeting and a UserCard component from scratch.

Solutions and explanations for Two Sum, Remove Duplicates from Sorted Array, and Best Time to Buy and Sell Stock.

Solutions and explanations for Move Zeroes, Intersection of Two Arrays II, and 3Sum.

A walkthrough of DNS — from browser cache to Authoritative Name Server.

Just buy it, no second thoughts needed.