Fixing a critical issue: a journey into Ruby web server startup sequences, part two
Loic
So where are we jumping into this story? This post is part two of our story on how we dove into Ruby web server startup sequences to fix a strange…
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Fixing a critical issue: a journey into Ruby web server startup sequences, part one
Introduction In this post-mortem blog post we’ll explore the oft-neglected Rack’s design and Ruby web server startup sequence in depth through the lens of a surprising critical issue encountered by…
Scaling and improving at Sqreen: a frontend team retrospective
Thibaud
At Sqreen, our company has evolved and changed a lot since we began this journey. Our frontend team is no exception, and as a member of that team, I wanted…
How do you solve a problem like overcrowded company calendars? With a company dashboard!
FX
Why I built a company dashboard from scratch At Sqreen, we have an initiative called “Sqreenities.” A Sqreenity is basically a week where you step away from your normal day-to-day…
Getting security to scale: learnings from modern app sec teams
Jb
Why are we writing this? In April, I visited the Bay Area from Paris for a week with some members of my team. While we were there, we sat down…
How we built V8 natively on ARM
Émile-Hugo
When Amazon released their custom Graviton processor, we knew that ARM needed to be on our radar. Although clearly a first generation product, the investment required to build such a…
Building a dynamic instrumentation agent for PHP
TL;DR PHP instrumentation can be handled in many ways. When we built our PHP agent at Sqreen we made a series of architectural decisions that enabled us to maximize performance,…
How to debug memory leaks in a Node.js application on Heroku
Vladimir
Debugging memory leaks is rarely a piece of cake, especially when they only happen in production. The best way I’ve found to debug memory leaks in a Node.js application on…
Introducing a new plugin for making your WordPress more secure
Maurice
At Sqreen, our mission is to democratize security. To me, that means making security accessible to everyone. We’re often thinking about different ways to do that, so today I wanted…
How I switched from Ruby to Python
Benoit
This article is a personal experience shared by Benoit, Sqreen’s first engineer who worked on the Ruby agent and on the Python backend. Ruby, a love story Back in 2008…