Some recent changes to the primary server in my office left the fans running louder than previously. I do have some noise canceling headphones but I still don’t want to hear the sound of jet fans from the other room, with a little bit of free time I was able to nail down and correct the behavior using ipmitool(1) and magic bytes.

Whenever a system comes offline I try to always make multiple updates at once. When I recently received some new mounting hardware for one of my big FreeBSD servers, I decided to plonk an idle PCI-e device into the chassis while it was out of the rack.

A colleague once told me about their boss whose office door decorated by a single 8x11 piece of paper with “speed wins” scrawled upon it. I didn’t even work for them and I find that motivating. I think about it a lot, particularly when I’m waiting for Rust builds to complete. Speed wins, every second counts, and “why is this so fscking slow!” all run through my mind as units are compiled and linked.

I have recently been on a quest to get more speed from my Rust development environment, and today’s “why is this so fscking slow!” culprit is rust-analyzer.A larger project like delta-rs benefits from IDE-like machinery to help work across a sprawling codebase written in Python and Rust. rust-analyzer helps greatly with that, but it comes with a speed penalty.

Today I launched a new rework of buoyantdata.com thanks to the work of a designer I found in the fediverse! The original “design” of the site was something I had cobbled together with a Jekyll theme I originally ported to Cobalt, but it was always lacking.

Purchasing new hardware to run Linux on used to be so perilous that I would only buy hardware which was at least 6 months out of date. The ecosystem has changed dramatically such that when my Dell XPS experienced a chassis failure, I went to a big box store and came home with a Lenovo Slim 7. I immediately installed a Linux distribution on it and started setting up my new portable workstation without even considering hardware support.

Nothing quite feels like “I made it!” like being published. Which is why I am thrilled to share that Delta Lake: The Definitive Guide is available for purchase, and I kind of helped! I wanted to share a little bit about how my contributions (Chapter 6!) came about, because my entrance into the Delta Lake ecosystem was about as unplanned as my authorship of part of this wonderful book.

This year has been so jam packed full of activities that I forgot to share some videos from Data and AI Summit 2024 this past summer! The annual conference hosted by Databricks has become one of my favorites to meet with other Delta Lake users and developers to discuss the future of large-scale data ingestion and processing. This year however, I overdid it a little bit.

The staggering complexity of modern software makes it impossible for us to truly understand what is happening while our code runs, but when it fails there is always something we can learn. At the beginning of my career we, the industry, generally understood that programs were getting complex. Without hesitation we made things more complex, more distributed, and somehow more coupled. Failure is a “learning opportunity”, and those opportunities are in abundance.

I asked a large language model this question:

I have always been a technology scavenger, picking up cheap or disused computers for parts or tinkering. Last year when I picked up a full-height server cabinet, a new world of rack-mountable junk finally became possible! One lucky Craigslist find ended up being an older 2U IBM xSeries server with 8 drive sleds that was described as “sorta working” by the owner, who was shedding some extra stuff for his move across the country. I accepted the challenge, forked over a few Jacksons, and brought the machine home.

Large language models (LLMs) seem to only be good at two things: summarizing text and making up bullshit. The idea that a general purpose LLM is going to herald a new age of software development efficiency is misleading in most cases bordering on malicious. While there are a number of other recommendations or predictive machine learning models which can improve software development efficiency, LLMs propensity to generate bullshit undermines trust in a way that makes me question their validity at baseline as a software development tool.

I have had the good fortune this year to help a number of organizations develop and deploy native data applications in Python and Rust using a project I helped found: delta-rs. At a high level delta-rs is a Rust implementation of the Delta Lake protocol which offers ACID-like transactions for data lake use-cases. One of the big areas of my focus has been in evaluating and improving performance in highly concurrent runtime environments on AWS.

For a long time after I rebuilt my jails host, I could not restart a certain number of jails due to an “interface already exists” error. For the life of me I could not make sense of it, The services running in the jails were useful but not required so I put off tinkering with it. I thought that I would magically stumble into the solution in my sleep or something equally silly.

My home office has grown in size and for the first time in decades I believe I have a surplus of compute power at my disposal. These computational resources are not in the form of some big beefy machine but a number of smaller machines all tied together by a gigabit network hiding away in a server cabinet. The big problem has become how to effectively utilize all that computational power, I turned to Nomad to orchestrate arbitrary workloads on static and ephemeral (netboot) machines. As the title would suggest, it’s almost good but it still falls frustratingly short for my use-cases.

Dependency management in the Rust ecosystem is fairly mature from my perspective, with crates.io, Cargo, and some cultural norms around semantic versions, I feel safer with dependencies in Rust than I have in previous toolchains. It’s far from perfect however, and this question helps highlight one of the quirks of how Rust dependency management does or does not work, depending on your perspective:

I frequently use SSH for accessing one of the many development workstations I use for work, which includes developing network services among other things. A couple of years ago I wrote about this hidden gem in ssh which allows dynamocaily forwarding ports. This handy little feature allows dynamocailly adding local port forwards from within an already running SSH session. Recently however this feature has stopped working properly, emitting commandline disabled.

I found myself refactoring a Rust crate in which I had two non-default features but at least one would need to be set in order for cargo build to function. Cargo allows a default feature set, or allows different targets to have required-features defined. My use-case is different unfortunately, I wanted slightly different semantics to support either s3 or azure features. I stopped by ##rust on libera.chat and as usually happens, got a nudge in the right direction: build.rs:

I am really excited to be officially in for AIDS/LifeCycle 2023! This will by my third year supporting the life-saving services offered by San Francisco AIDS Foundation and the Los Angeles LGBT Center by riding from SF to LA with AIDS/LifeCycle.. This past 12 months has been among the most stressful and rewarding in my adult life, so I’m doubly excited to have the support of so many friends and fmaily. In the next month I’ll continue fundraising to try to meet my goal, and would appreciate your help too!

I don’t have a lot of opinions about UEFI, but it seems that building something as critical as booting around the FAT32 filesystem is not a great idea. FAT32 is a simple but archaic filesystem which has the resiliency of a paper boat. While moving machines around in my homelab this weekend I was bit by that resiliency as halfway through booting my FreeBSD NAS it complained that it could not complete fsck operations: Invalid signature in boot block: 0000.