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Lessons we learned when debugging a scaling problem
Get a closer look at how we investigated errors originating from scheduled jobs, and how we stumbled upon "the tyranny of the clock."
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The latest blog posts to take off on Hacker News. 289 posts.
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Why Does Developing on Kubernetes Suck?
Kubernetes has changed the way I operate software. Whole classes of production problems have disappeared–arguably to be replaced by others. But such is the way of the world. All told I’m happier operating a microservices app today than I was before I started using Kubernetes.
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Cloud Run Button: Click-to-deploy your Git repos to GCP
Adding the Cloud Run button to your github source code repositories lets anyone deploy their application to Google Cloud.
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Announcing Notqmail
Running my own email server has its challenges. Chief among them: my favorite mail-server software hasn’t been updated since I started using it in 1998.
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Traits of Serverless Architecture
Whenever new technologies emerge, the first priority for a technologist is to understand the implication of adopting it. Serverless architecture is a case in point.
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Trigger a Kernel Panic to Diagnose Unresponsive EC2 Instances
When I was working on systems deployed in on-premises data centers, it sometimes happened I had to debug an unresponsive server. It usually involved asking someone to physically press a non-maskable interrupt (NMI) button on the frozen server or to send a signal to a command controller over a serial interface (yes…
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My Home Lab Server with 20 Cores / 40 Threads and 128 GB Memory
Update fall 2024 I have decided to decomission this machine and it is no longer in use.
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Microsoft Screws Azure Customers and Its Own Advocates Alike
Microsoft’s recent licensing change for Windows Server is a great modern-day example of why so many businesses hated Microsoft two decades ago. Is this an aberration, or are they back to their old tricks?
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Open-source firmware
Today we are proud to announce the porting of coreboot, an open-source firmware, to the Supermicro X11SSH-TF server platform.
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AMD EPYC processors come to Google, and to Google Cloud
Google is using the new 2nd Gen AMD EPYC processor for its own workloads, and will offer VMs based on the chip to Google Cloud customers.
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GitHub Actions now supports CI/CD, free for public repositories
GitHub Actions now includes built-in CI/CD. Easily automate how you build, test, and deploy your projects on any platform, including Linux, macOS, and Windows.
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First modern coreboot server platform
With our expertise we create security solutions which are robust and easy to use, leveraging leading open source technology.
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How to Measure Indoor Air Quality with a Raspberry Pi, RuuviTags and PMS7003
Learn how to build an air quality monitoring device with a PMS7003 sensor, Raspberry Pi and some Java code. Help raise awareness about air pollution.
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Backblaze Hard Drive Stats Q2 2019
This review looks at the Q2 2019 and lifetime hard drive failure rates of the 108,461 hard drives in use at Backblaze's data centers.
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Syslog: Complete System Administrator Guide
Complete Guide on understanding the Syslog protocol, syslog message format as well as log forwarding. Best practices included!
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From 30 to 230 Docker containers per host
I could not find much information on the interwebs how many containers you can run per host. So here are mine and the issues we ran into along the way.
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Fast and flexible observability with canonical log lines
Canonical log lines are a lightweight, flexible, and technology-agnostic technique for observability that are powerful and easy to implement.
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Monorepo is great if you're really good
This is inspired by Dan Luu's post on the advantages of a single big repository over many small ones. That post is fairly old, and I confess that I'm hardly up to date on the state of tooling, both for managing multiple repos and for dealing with one big one. But I'm going to make an argument which I think mostly…
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How we send 22k emails every hour
Our app sends and receives about 22,000 (22 thousand) emails per hour. That's more than half a million emails every day and it sometimes peaks to 25-30 emails EVERY SECOND
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Goodbye Docker: Purging Is Such Sweet Sorrow
This was triggered by a recurring incident I faced where the Docker daemon was using 100% CPU on multiple cores that made the host effectively unusable.
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CERN migrates to open-source technologies
Update: The name of the project was changed to Microservice Architecture on Libre Technology (MALT) to better reflect its scope. More information in this article .
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A Cold Take on IBM, Red Hat and Their Hybrid Cloud
I start more blog posts than I finish, due to no shortage of other distractions and at times a near-crippling inability to blog short. When IBM announced they were acquiring Red Hat in October 2018…