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How to provide robust monitoring to low-end systems.

News briefs for March 21, 2019.

Service mesh provides a dedicated network for service-to-service communication in a transparent way. Istio aims to help developers and operators address service mesh features such as dynamic service discovery, mutual transport layer security (TLS), circuit breakers, rate limiting, and tracing. read more

In the first part of this series, we looked at advances in leveraging the power of relational databases "at scale" using Apache Spark SQL and DataFrames. We will now do a simple tutorial based on a real-world dataset to look at how to use Spark SQL. We will be using Spark DataFrames, but the focus will be more on using SQL. In a separate article, I will cover a detailed discussion around Spark DataFrames and common operations. read more

Relational databases are here to stay, regardless of the hype and the advent of newer databases often called NoSQL databases. The simple reason is that relational databases enforce essential structure, constraints, and provide a nice, declarative language to query data (which we love): SQL! read more

Users unchuffed, devs pulling bricked wares off Google Play. Android looks a little less open now that Google has begun to enforce draconian new rules on accessing a phone's call and text logs.…

Wiki.js is a modern and powerful OpenSource wiki app based on Node.js, Git, and Markdown. Wiki.js runs on the flamingly fast Node.js engine and is optimized to conserve CPU resources.

Jérôme Glisse felt that the time had come for the Linux kernel to address seriously the issue of having many different types of memory installed on a single running system. There was main system memory and device-specific memory, and associated hierarchies regarding which memory to use at which time and under which circumstances. This complicated new situation, Jérôme said, was actually now the norm, and it should be treated as such.

Why bother having a process for proposing changes to your open source project? Why not just let people do what they're doing and merge the features when they're ready? Well, you can certainly do that if you're the only person on the project. Or maybe if it's just you and a few friends. read more

News briefs for March 20, 2019.

The Fedora OS is comfortable and easy for lots of users. It has a stunning desktop that makes it easy to get everyday tasks done. Under the hood is all the power of a Linux system, and the terminal is the easiest way for power users to harness it. By default terminals are simple and […]

There is something truly exciting about customizing your operating system through the collection of hidden files we call dotfiles. In What a Shell Dotfile Can Do For You, H. "Waldo" Grunenwald goes into excellent detail about the why and how of setting up your dotfiles. Let's dig into the why and how of sharing them. read more

Like many families, mine is inconveniently spread around, and I have many colleagues in North and South America. So, over the years, I've relied more and more on WhatsApp to stay in touch with people. The claimed end-to-end encryption appeals to me, as I prefer to maintain some shreds of privacy, and moreover to avoid forcing those with whom I communicate to use an insecure mechanism. read more

Plex is a free and open source media server that can be used to store all your movies, shows, and other media in one place. Plex allows you to remotely stream those media libraries from any device like smart TV, web browser, Xbox One, PlayStation, and Apple TV.

It's official: artificial intelligence (AI) isn't the unbiased genius we want it to be. Alphabet (Google's parent company) used its latest annual report to warn that ethical concerns about its products might hurt future revenue. Entrepreneur Joy Buolamwini established the Safe Face Pledge to prevent abuse of facial analysis technology. read more

And an extension for those who prefer Visual Studio Code – but all very preview at the mo Microsoft has booted out a Postgres GUI for those moments when the command line is just too scary.…

Nvidia has launched a stripped-down, quad -A57 Jetson Nano module with a CUDA-ready 128-core Maxwell GPU. There’s also a maker-friendly, $99 dev kit featuring the Linux-driven, AI-focused COM. At the GPU Technology Conference, Nvidia spun a version of its Arm-based, GPU-focused Jetson modules for the Linux maker market along with a $99 Dev Kit. The […]

This article is about text processing in Rust, but it also contains a quick introduction to pattern matching, which can be very handy when working with text.

Almost a hundred years ago, John Maynard Keyes suggested that the industrial revolution would effectively end work for humans within a couple of generations, and our biggest challenge would be...

The open nature of the consumer 3D printing industry has made for a much more consumer-friendly world. This article highlights an ecosystem that, so far, has largely avoided vendor lock-in and describes the benefits that openness has provided members of the community, myself included: 3D printing.