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We have a year to fix security everywhere

https://jyn.dev/a-year-to-fix-security/
43•saikatsg•52m ago•19 comments

I've factored the RSA keys of a Certificate Authority from the 90s

https://mcpherrin.ca/2026/09/07/rsa.html
226•ahlCVA•4h ago•42 comments

My Feed, My Way

https://www.pm.gov.au/media/my-feed-my-way
16•dotcoma•29m ago•5 comments

How well do agents use test/verification techniques?

https://danluu.com/agentic-testing/
39•vinhnx•2h ago•7 comments

TALA Is Open-Source

https://d2lang.com/blog/tala-is-open-source/
160•alixanderwang•6h ago•10 comments

I tested 10 model/harness combinations on the same Three.js task

https://alvins82.github.io/hangar-harness-model-tests/
21•alvins82•1h ago•7 comments

Arm Mali G2-Ultra NX GPU: desktop-class mobile gameplay with AI-native graphics

https://newsroom.arm.com/blog/arm-mali-g2-ultra-nx-ai-native-mobile-graphics
15•Re-Tails•1h ago•7 comments

Jellyfin 12.0

https://jellyfin.org/posts/jellyfin-release-12.0/
231•0xC0ncord•3h ago•88 comments

Watch Los Angeles get built, one building at a time (1880–2026)

https://lax-skyline.parcelscope.net/
262•rustywasm•10h ago•134 comments

GamersNexus and LG: Or why rooting your TV is a bad idea

https://leaflet.pub/p/did:plc:yhgc5rlqhoezrx6fbawajxlh/3muwrqenzfk2n
16•drasticactions•2h ago•4 comments

Extinct Tasmanian tiger's 'snap' unlike any living mammal's bite

https://www.cnn.com/2026/09/02/science/tasmanian-tiger-skull-bite-force
18•cisc•4d ago•1 comments

Leaving VMware just got harder after Broadcom pulled VDDK downloads

https://www.virtualizationhowto.com/2026/09/leaving-vmware-just-got-harder-after-broadcom-pulled-...
157•josephcsible•9h ago•67 comments

John Margolies' photographs of roadside America

https://publicdomainreview.org/collection/john-margolies-photographs-of-roadside-america/
60•duck•4d ago•16 comments

The VMs Powering Mobile Agents (Instinct, Claude Code)

https://rohanadwankar.github.io/posts/platforms.html
8•RohanAdwankar•1h ago•1 comments

WeatherNext 3

https://deepmind.google/science/weathernext/
292•matthieu_bl•4d ago•66 comments

Scientists observe Einstein's gravity in the quantum world

https://www.ox.ac.uk/news/2026-08-28-scientists-observe-einsteins-gravity-in-the-quantum-world
194•mudil•3d ago•45 comments

Understanding Computer Memory Architecture and SSD Internals

https://codingpirate.com/understanding-computer-memory-architecture-ac9320110787
4•Deeptiman•1d ago•1 comments

Trusting-Trust Attack against an Entire Linux Distribution

https://arxiv.org/abs/2607.24888
188•signa11•2d ago•40 comments

216M Spy TVs – The LG Smart TV Problem [video]

https://www.youtube.com/watch?v=6IFVTcM28KA
660•treve•1d ago•854 comments

Colorlight 5A-75B: A dive into a popular low-cost ECP5 (FPGA) development board

https://blog.yosyshq.com/p/colorlight-part-1/
26•gregsadetsky•3d ago•6 comments

Everything is free now, so why not a floating orb in my IDE

https://eighttrigrams.net/post/79
16•eighttrigrams•2d ago•5 comments

Show HN: Jigsaw Haiku

https://jigsawhaiku.com/
77•windowshopping•3d ago•27 comments

Some more thoughts on random_page_cost

https://vondra.me/posts/some-more-thoughts-on-random-page-cost/
16•blueshoess•3d ago•0 comments

Show HN: Stuxnet – A reconstructed source code of the infamous cyber-weapon

https://github.com/Sadpainy/Stuxnet
140•CMDDestory•7h ago•45 comments

Caltech Mathathon – first hackathon ever devoted to research level mathematics

https://mathathonchallenge.com/index.html
253•astroanax•20h ago•88 comments

Emacs Bedrock 2.0

https://lambdaland.org/posts/2026-09-06-bedrock-v2/
79•ashton314•9h ago•7 comments

This Month in Ladybird – August 2026

https://ladybird.org/newsletter/2026-08-31/
212•exploraz•3d ago•51 comments

Show HN: NYC MapTap – Learn NYC neighborhoods

https://albertjoseph0.github.io/nyc-maptap/
9•abj908•3h ago•6 comments

Icy Moons Are Ocean Worlds

https://mceglowski.substack.com/p/icy-moons-are-ocean-worlds
152•worldvoyageur•1d ago•15 comments

Show HN: Interactive Tree of Life

https://ptree.org/
82•Lucent•4d ago•22 comments
Open in hackernews

OpenTelemetry protocol with Apache Arrow

https://opentelemetry.io/blog/2025/otel-arrow-phase-2/
108•tanelpoder•1y ago

Comments

andygrove•1y ago
I've just started exploring adding OpenTelemetry support to the Comet subproject of DataFusion. I'm excited to see the integration with Apache Arrow (Rust) and potentially DataFusion in the future.
SomaticPirate•1y ago
Wow, anyone able to provide a ELI5? OTel sounds amazing but this is flying over my head
theLiminator•1y ago
Not sure, but seems like it will be producing apache arrow data and carrying it across the data stack end to end from OTEL. This would be great for creating data without a bunch of duplication/redundant processing steps and exporting it in a form that's ready to query.
piterrro•1y ago
Unless I dont understand that fully (which could be the case).

This idea could fly if downstream readers will be able to read it. Json is great because anything can read it, process, transform and serialize without having to know the intrisics of the protocol.

Whats the point of using binary, columnar format for data in transit?

arccy•1y ago
better compression https://opentelemetry.io/blog/2023/otel-arrow/

You don't do high performance without knowing the data schema.

odie5533•1y ago
Is Arrow better than Parquet or Protobuf?
theLiminator•1y ago
Arrow is an in-memory columnar format, kinda orthogonal to parquet (which is an at-rest format). Protobuf is a better comparison, but it's more message oriented and not suited for analytics.
arccy•1y ago
the blog post comparison is against OTLP which is protobuf
datadrivenangel•1y ago
Not having to write to disk is great, and zero-copy in memory access is instant...
phillipcarter•1y ago
Warning: this is an oversimplification.

Performance optimization and being able to "plug in" to the data ecosystem that Apache Arrow exists in.

OpenTelemetry is pretty great for a lot of uses, but the protocol over the wire is too chunky for some applications where. From last year's post on the topic[0]:

> In a side-by-side comparison between OpenTelemetry Protocol (“OTLP”) and OpenTelemetry Protocol with Apache Arrow for similarly configured traces pipelines, we observe 30% improvement in compression. Although this study specifically focused on traces data, we have observed results for logs and metrics signals in production settings too, where OTel-Arrow users can expect 50% to 70% improvement relative to OTLP for similar pipeline configurations.

For your average set of apps and services running in a k8s cluster somewhere in the cloud, this is just a nice-to-have, but size on wire is a problem for a lot of systems out there today, and they are precluded from adopting OpenTelemetry until that's solved.

[0]: https://opentelemetry.io/blog/2024/otel-arrow-production/

potamic•1y ago
This diagram really depicts things nicely

https://opentelemetry.io/blog/2023/otel-arrow/row-vs-columna...

ahoka•1y ago
A bit hand wavy.
KAdot•1y ago
> We are interested in making OTAP pipelines safely embeddable, through strict controls on memory and through support for thread-per-core runtimes.

I'm curious about the thread-per-core runtimes, are there even any mature thread-per-core runtimes in Rust around?

jauntywundrkind•1y ago
glommio is pretty well respected. https://www.datadoghq.com/blog/engineering/introducing-glomm... https://github.com/DataDog/glommio

ByteDance also has their very fast monio. https://github.com/bytedance/monoio

Both integrate io-uring support for very fast io.

julian-datable•1y ago
Integrations with OTLP are critical to driving adoption and probably one of the biggest pain points we've encountered when adopting it ourselves (and encouraging others to the same).

Adopting OTLP without third-party support is pretty time consuming, especially is your tech stack is large and/or varied.

Re runtimes: curious about this too. Feels like the right direction if you’re optimizing a telemetry pipeline.

akdor1154•1y ago
Damn that's some scope creep if I ever saw it: 'try sending Arrow frames end to end' => 'rewrite the otel pipeline in rust'. Seems like the goals of the contributors don't exactly align with the goals of the project.

Kind of a bummer - one thing i was hoping to come out of this was better Arrow ecosystem support for golang.

gitroom•1y ago
Man Ive dipped my toes into this too, and yeah, the way everyone wants different things always shakes things up fast. Kinda love seeing where it all ends up tbh.
mike_heffner•1y ago
Thanks for sharing this — it’s a really promising direction. The advantages of Arrow for OTLP, especially when used end-to-end, are compelling given the protocol overhead of OTLP.

We’ve been thinking along similar lines with the use of Rust, particularly for OpenTelemetry collection in environments where high performance and low resource overhead are critical, such as edge and serverless. With that in mind, we’ve open-sourced a lightweight OpenTelemetry collector written in Rust to address these use cases. We’ve also developed a native Lambda extension around it, and have seen encouraging interest from folks aiming to improve cold start times.

The project is still fairly early, but we’re optimistic that Rust can open up new opportunities for efficient observability pipelines. Vendors like Datadog are also moving in this direction with their Lambda extension and appear to be adopting Rust more broadly for data-plane components.

If this resonates, feel free to take a look here: https://github.com/streamfold/rotel. We’d love to hear your thoughts on how this could be useful.