The latest blog posts to take off on Hacker News. 1,839 posts.
Yesterday I explained how a good background job framework is critical to scaling business applications. Today, meet Faktory. I’ve spent the last six months building Faktory, a new background job system which aims to bring the best practices developed over the last five years in Sidekiq to every programming language…
Developers running their apps on tsuru can choose plans based on memory and cpu usage. We were looking at adding I/O usage as one of the plan’s features, so one could choose how many I/O operations per second or bytes per second a container may be able to read/write. Being able to limit I/O is particulary important…
I’m going to describe a way to put together a world-class continuous deployment infrastructure for your side-project without spending any money. With continuous deployment every code commit is tested against …
Ever since Red Hat acquired Ansible, I and many others have anticipated whether or when Ansible Tower would be open sourced. Ansible Tower is one of the nicest automation tools I've used... but since I haven't been on a project with the budget to support the Tower licensing fees, I have only used it for testing…
Database load can be a silent performance killer. I’ve been optimizing the query performance of a web app I run designed to get people involved in open sourc...
Persisting state between AWS EC2 spot instances using Docker on an external volume
Load balancers are the point of entrance to the datacenter. They are on the critical path to access anything and everything. That give them some interesting characteristics. First, they are the mos…
Instead of drawing UML diagrams, why not generate them from a network traffic capture of the running system?
I’m using Golang for a while. During the development, I was used to repeatedly execute “go build”,“go test” manually. This was a bad habit on which I resign. It is not so painful if you use simple command without any args. But in case of more complex tasks, naturally, it is going to be a…
In my article detailing the command line utilities available for configuring and troubleshooting network properties on Windows and Linux, I mentioned some Linux tools that, while still included and…
Learn how to deploy Docker Swarm to create a Raspberry Pi cluster then turn it into a serverless super-computer with the OpenFaaS framework for Docker.
The personal website of Mark Hanford Nichols.
As a programming father you need to be concerned about your budget. This means resisting the temptation to buy the most amazing hardware, an...
Recently at Bluecore I ran into a familiar situation: during brief periods of overload, all requests to a server were timing out. It was a catastrophic failure, where the server completely stopped serving. We added more capacity to prevent overload, but we also wanted to fix the server. Instead of exploding, it should…
I’m CC’d on mails when things get slow, but never when things work as expected or are fast…oh well. Like an umpire in baseball, if we are doing our jobs, we are invisible. Subjec…
I'm trying to learn ways to minimize my reliance upon large companies for handling my day-to-day personal data. So I figured calendar and contacts should be on my list of things to self-host. This post is about how I migrated all my Google calendars and phone contacts to my own server without losing any features...
Large downloads work from all other servers, but fail from S3. Must be a problem on their end, right?
ZFS should have been great, but I kind of hate it: ZFS seems to be trapped in the past, before it was sidelined it as the cool storage project of choice; it's inflexible; it lacks modern flash integration; and it's not directly supported by most operating systems. But I put all my valuable data on ZFS because it…
With a Raspberry Pi or other modern single-board computers, you can make very simple toys. I started with the hello world of interactive apps: the soundboard. But even then, I was too ambitious. The soundpad Since the main target was kids. I wanted a simple, screen-less toy that would teach …
