I desperately needed to extract the complete (and very lengthy) command line I had written 6 months ago in a bash shell - which was still running under screen. Read on to see how I eventually made it. Expert level. You will learn a ton from this.

Modern disks are so fast that system performance bottleneck shifts to RAM access and CPU. With up to 64 cores, PCIe 4.0 and 8 memory channels, even a single-socket AMD ThreadRipper Pro workstation makes a hell of a powerful machine - if you do it right!

Scaling a single Kubernetes cluster to this size is rarely done and requires some special care, but the upside is a simple infrastructure that allows our machine learning research teams to move faster and scale up without changing their code.

In November 2020 we began a large migration to upgrade our PostgreSQL cluster from version 9.6 to 12.4. In this post I’ll give an overview of our architecture at Coffee Meets Bagel, walk through the steps we took to perform this upgrade with less than 30 minutes of cumulative downtime, and share some lessons learned along the way

A quick (almost deep) dive into replication and HA configurations

Streaming media. specifically video, is a fickle beast. Figuring out the exact arguments for FFmpeg is very trickly. This will be a short post, but it will cover everything you need to know to stream media using FFmpeg to WebRTC clients. This technique comes in handy when youw orkw ith video streaming.

How can a normal user change their password? Isn’t the password file /etc/passwd is protectioned from changing by anyone except root? Enter rws

This post is the third installment of our five-part series on building GitHub’s new homepage. We linked to previous article on how to build the glob, this part focus on front-end optimization: thing like DOM listener, animation, lazy loading, photo size optimization.

This is a post detailing a wild discovery made by Matt Smiley and I while investigating strange behaviour from HAProxy. We want to highlight the pathology, describe how we found it, and share some investigative techniques used along the way.

Dr. Axel Rauschmayer, the JavaScript expert, takes on undefined vs null and his approach on using null generally and tend to avoid both of them.