taking some notes on CRAQ. it seems to be a popular choice for replication in recent systems. 🤔 flaneur2020.github.io/posts/2026-0...

Notes on CRAQ | Flaneur2020

Recently while studying 3fs, I learned that it uses CRAQ (Chain Replication with Apportioned Queries) as its replication algorithm. Coincidentally, I had …

flaneur2020.github.io

I used to wonder why some processes get stuck in the 'D' state and can't be killed. just learned that it seems to be a consideration of ownership: when disk IO reads into the page cache, killing the process mid-way could cause the DMA write to end up in a random memory location. 🤔

just learned about the Kitty Graphics Protocol which allows displaying graphics in terminals like Kitty / Ghostty. thought it’d be interesting to run a GUI inside a Ghostty terminal, so I vibe-coded a demo. it’s still a bit flickery though 😲

agentic seems to be a further compression of knowledge, as long as you have a proven approach to solving problems in the real world, you don't need to memorize vast amount of details. 🤔

I want this, but it is not available as of yet.

Cornell's Introduction to CUDA cvw.cac.cornell.edu/cuda-intro

thinking about how FP is a cheat code for AI-driven development. properties like referential transparency / stateless functions are possible to significantly reduce the context the AI needs to worry about. 🤔

SlateDB 0.10.0 is out! My favorite changes: - Compactor can run on a separate machine - Go binding improvements - Network chaos tests - Object store cache improvements - Merges on L0 flush Changelog: app.dosu.dev/d8f2da6d-6c4... Release notes: github.com/slatedb/slated

this is the best article I've ever read on Rust error design. I always feel confused when I come across a repo that uses thiserror. 🤔

distilling knowledge from LLMs to brains ought to be extremely convenient for thinkers nowadays, but 'being thoughtful' will become an even rarer trait 🤔

i realized i do not have to put all my $HOME folder into my dotfiles. zsh & git & neovim are simply all i need, and nothing else is worth version controlling for me. 😲

o hai 💎 slatedb-rb :D github.com/catkins/slat...

GitHub - catkins/slatedb-rb: Ruby bindings for SlateDB - a cloud-native embedded key-value store

Ruby bindings for SlateDB - a cloud-native embedded key-value store - catkins/slatedb-rb

github.com

just as 'User Experience' optimizes tools for humans, I suppose there will emerge a profession called 'AI Agent Experience' to optimize tools for AI agents in the coming years. AI Agents are waiting for their own Steve Jobs 🤔

Been thinking about this since it was shared with me yesterday, especially about how oppressively most organizations pressure managers (even senior ones) to stay in that persona rather than actually leading www.leadingsapiens.com/ics-managers...

ICs vs Managers vs Leaders: Why Real Leadership is Rare

It should be considered that there is nothing more difficult to handle, more doubtful of success, or more dangerous to carry through than to initiate a new order of things. For the innovator makes ene...

leadingsapiens.com

made a note about how all these components around CSI interacts with each other to simply mount a EBS in k8s, surprisingly a mess of stuffs 😲

a metaphor I've been pondering: post-WWII nuclear tests irradiated the atmosphere, making all steel smelted after carried a background radiation. for high-precision instruments, you had to salvage pre-test steel from sunken ships.

startup idea

it’s crazy to see such a great outage from cloudflare, twitter was inaccessible for nearly 3 hours. luckily bluesky is still available at the moment 😲

The largest egocentric dataset. Egocentric (first person) video is a general learning framework that passively captures how skilled workers do their jobs. - 10,000 hours - 2,153 factory workers - 1,080,000,000 frames

i'm beginning to understand the appeal of HCL as a configuration format over YAML. HCL has built-in variables, effectively providing a native templating engine. with YAML, we often have to use macros just to battle the indentation and ensure the correct number of spaces with some Jinja variants. 😲

in my earlier understanding, distributed systems usually featured a fine-grained metadata service for cluster membership. however, I've recently noticed that many systems' implementations seem to prefer a fixed cluster design. 🤔 once the cluster is established, its membership becomes immutable.

i believe household chores should be considered internal domestic logistics. for instance, handling the movement of clothing between the washing machine, drying space, and wardrobe. or dishes moving between the dining table, dishwasher, and cupboard.. 🤔

For everyone interested in data infra, want to get a quick sense of how big data works, how data systems are designed, and what the tradeoffs are, start with this share from @xiangpeng.systems, really nice intro! intro-data-system.xiangpeng.systems

I do understand why so many articles talk about how vibe coding can destroy the joy of programming. however, I've never found that any joy exists in manually writing GitHub/Jenkins workflows. 🤔

100% correct post

Simon Willison@simonwillison.net · 10mo ago

I gave a talk last night about "Living dangerously with Claude", on the joys and perils of --dangerously-skip-permissions and how critical it is that we run coding agents in a sandbox so that we can unlock their full potential simonwillison.net/2025/Oct/22/...

!!!

Martin Kleppmann@martin.kleppmann.com · 10mo ago

At long last, @chris.blue and I have submitted the final manuscript of Designing Data-Intensive Applications, second edition, to the publisher. There is always more that could be improved but at some point we just have to call it done. Now it goes into production; probably shipping in ~4 months.

Calling database nerds in SF! I'm covering SlateDB at the systems meetup next Wednesday (10/29). If you're around, I'd love to meet you in person (that way you'll have proof I'm not just an AI bot). 👉 luma.com/e7feg2i6

AWS seems to have a major outage in the us-east-1 region right now 😵‍💫 health.aws.amazon.com/health/status

🤯 www.reuters.com/business/a16... #dataBS

a16z-backed data firms Fivetran, dbt Labs to merge in all-stock deal

Data startups Fivetran and dbt Labs will merge in an all-stock deal, creating a combined data infrastructure company with nearly $600 million in annual revenue, the two companies told Reuters.

reuters.com

modern LLM inference engines like vLLM & SGlang are becoming tough to dive into. to learn how these inference engines work, nano-vllm is a fantastic educational project—complete Page Attention & LLM scheduler in <1k loc.🤯 flaneur2020.github.io/posts/2025-1...

A Walkthrough of nano-vllm | Flaneur2020

Recently, I&rsquo;ve been delving into the architecture of production-grade inference engines. While projects like vLLM and SGLang are crazy sophisticated, …

flaneur2020.github.io