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Running Databases on Kubernetes
Things to consider when running a database on Kubernetes.
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The new local data stack: Integrating Dagster, dbt and DuckDB
Lean and efficient MDS experience: Delivers better software engineering practices to the data ecosystem with the new local MDS stack comprised of Dagster, dbt and DuckDB which offers better developer productivity by enhancing testability of the E2E pipeline.
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Jails on FreeBSD
We have had Jails on FreeBSD since 4.0 came out 19 years ago in March 2000. This describes how to setup jails on FreeBSD 12 without any helpers.
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WAL Mode in LiteFS
LiteFS v0.3.0 now supports SQLite's write-ahead log journal mode.
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FreeBSD Bhyve Virtualization
The Bhyve FreeBSD hypervisor (called/spelled ‘beehive’ usually) was created almost 10 years ago. Right now it offers speed and features that other similar solutions provide – such…
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Cisco to acquire Isovalent
Cisco acquires Isovalent, founded by creators of eBPF and the team behind Cilium and Tetragon, the leading cloud native solutions leveraging eBPF technology.
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Could we stop Yellowstone from erupting with a geothermal power plant?
It’s become fairly common knowledge that Yellowstone National Park, in addition to being incredibly beautiful, is sitting on top of an enormous supervolcano that catastrophically erupts every few hundred thousand years.
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Blueprint for a distributed multi-region IAM with Go and CockroachDB
Learn how to scale IAM globally. Ory provides secure multi-region identity solutions.
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Scaling Knative to 100K+ Webapps
Render scaled its Knative infrastructure to handle 100k+ web apps, optimizing Kubernetes for free-tier services and reducing CPU usage to improve network performance.
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Current architectural best practices for LLM applications
In this guide, I will share the standard architecture for data-informed language model applications and explain forthcoming improvements in knowledge retrieval.
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Graceful behavior at capacity
Suppose we’ve got a service. We’ll gloss over the details for now, but let’s stipulate that it accepts requests from the outside world, and takes some action in response. Maybe those requests are HTTP requests, or RPCs, or just incoming packets to be routed at the network layer. We can get more specific later. What…
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Fighting API bots with Cloudflare's invisible turnstile
There's a "hidden" API on HIBP. Well, it's not "hidden" insofar as it's easily discoverable if you watch the network traffic from the client, but it's not meant to be called directly, rather only via the web app. It's called "unified search" and it looks
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Podman Desktop 1.6 released: Even more Kubernetes and Containers features
Podman Desktop 1.6 has been released!
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eBPF Networking Techniques – Packet Redirection
This is the first post of a many planned to shed light on the various networking techniques eBPF makes available to a Linux network developer.
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Pitfalls of Helm – Insights from 3 years with the leading K8s package manager
Having worked with Helm for multiple years these 5 shortcomings always bugged my mind. From CRDs updates to multi namespace deployments.
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ThinkPad as a Server: The Follow-Up
The ThinkPad as a server is back, this time with a couple of adjustments.
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How to use Podman inside of a container (2021)
One of the most asked about topics to folks working on upstream container technologies is running Podman within a container. Most of this has histo...
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Service mesh use cases (2020)
Service mesh is a blazing hot topic in software engineering right now and rightfully so. I think it’s extremely promising technology and I’d love to see it widely adopted (in cases where it truly makes sense). Yet it remains shrouded in mystery for many people and even those who are familiar with it have trouble…
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How Canva saves Amazon S3 costs
Understanding our data and usage patterns was the real key.
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We put half a million files in one Git repository (2022)
Using a monorepo causes a lot of performance challenges for git. Here's how we solve them at Canva.
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Amino – The Public IPFS DHT Is Getting a Facelift
The ProbeLab team is working on a major refactoring of the Public IPFS DHT (henceforth called Amino) and a new feature which will accelerate the provide operation by several orders of magnitude. Read through to find out the details and how to get involved.
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I've had bad luck with transparent hugepages on my Linux machines
You're probably reading this page because you've attempted to access some part of my blog (Wandering Thoughts) or CSpace , the wiki thing it's part of. Unfortunately you're using a browser version that my anti-crawler precautions consider suspicious, most often because it's too old (most often this applies to versions…
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GitHub Actions and vanity metrics
The measure of a modern software engineer in our attention economy is easily calculable thanks to companies like Microsoft acting both as bastion and companion in demonstrating one's prowess.
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Cold restart whole system after total outage
"What are folks’ views on systems so large where cold-starting the whole system is almost impossible?"... — M'colleague, Shivam, In A Slackroom Next Door.
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Ahrefs saved $400m in 3 years by not going to the cloud
How Ahrefs Saved US$400M in 3 Years by NOT Going to the Cloud Clouds for IT infrastructure are so popular lately that moving into the cloud has become a trend. Infrastructure as a service (IaaS) …
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25 Gbit/s at home, part 1
First part of a story on how I’ve built 25 Gbps router for home use.
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My solar-powered blog is now on lithium iron phosphate
In my last blog post I discussed how a small solar project - to power this blog on a Raspberry Pi - escalated into a full-blown off-grid solar setup, large enough to power the computer I use at the moment to write this update 1 . In this update, I want to discuss my battery upgrade.
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On the joy of podman and auto-updates (2022)
podman provides an integrated auto-update mechanism, which I recently applied to all of my containers running on feldspaten. The mechanism is nice, but at first appears a bit counter-intuitive. In this post ’m trying to explain how you can use the mechanism and what to watch out for. I’ll start with the trap I think…
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Kargo, a multi-stage application lifecycle orchestrator
Meet Kargo, the open source continuous promotion tool from the creators of Argo that moves changes from stage to stage with GitOps, not CI scripts.