What’s better than containerization? Written in Rust, open source and the core of how AWS Lambda functions are powered, Firecracker!

Many article that against SQL to promote documented db such as MongoDB or DynamoDB usually are weak effort. But this article is quite well-thoughout. This article argues that SQL is Inexpressive, Incompressible and Non-porous

DNS is an interesting aspect on the internet. It’s amazing fast and reliable, very well distributed, multiple layer of caches. So what is a query look like? Can we hand write it like how we hand write SQL instead of ORM?

This blog post walks you through how to implement a time-series database engine based on what I’ve learned from my experience of writing a lightweight one from scratch. While it is written in Go, it mostly covers language-agnostic.

How I told hundreds of users they got paid when they didn’t!

we will see how row-level locks are organized in PostgreSQL and how they are used together with object-level locks. We will also talk of wait queues and of those who jumps the queue

Modern softwares tend to request more thant they need, and the OS happily grant this wish without explicitly reverse memory for that program. The OS hope that the program will not use all of that memory. And that’s a broken promise. When the software starts to use all of that promised memory, chaos happen.

In the old day, in single-thread programs, hardware optimization can easily test and validate because valid optimizations do not change the behavior of valid programs. Then when we reached the limit of speed, we switch to multipe processors on the same computer, and now things is harder to validate due to concurency run of multiple processors.

Border Gateway Protocol (BGP) protocol has a very simple purpose: choose the fastest and the most efficient route to deliver a message from one autonomous system (AS) to another. In layman’s term, BGP is the GPS for the internet.

Reliablity in space is important. Mistakes can mean death, literally. Also in space, it’s harder to bring system back, no one is outthere to debug or reset the system. With that reality in mind, here’s a look at incidents and reliability challenges that have occurred in outer space, and what SREs stand to learn from them.

Continue on how Reddit deal with challenge of scale system due to WallStreetBets. They basically make the autoscaling smarter by make it growth faster for big pools.