Last couple of sunsets of 2025.

We cut cross-zone traffic for SLO monitoring by 90% using Prometheus subquery optimization. The trick: pre-aggregate data locally instead of shuffling 55M raw samples to Thanos queriers. Coming soon to Pyrra! 🚀 www.polarsignals.com/blog/posts/2...

A simple 50-line code change saves us 30% of CPU across our whole infrastructure. This is the magic of system-wide profiling with @polarsignals.com. Easy to spot, easy to fix.

🚀 We recently announced our NVIDIA CUDA always-on profiler. Check out this blog on how to try it out super quickly with your CUDA workload today!🧊 www.polarsignals.com/blog/posts/2...

🆕 InfluxDB 3.8 is here! We’ve focused on 2 things: simplified deployments & smarter AI. What’s inside: ▪️ Linux Native ▪️ K8s Ready ▪️ Better Insights Whether you’re starting on open source Core or scaling with Enterprise, 3.8 is built to run where you do. Read the breakdown: https://bit.ly/4ajCxon

Thanks Andy! We published the recording here www.youtube.com/watch?v=RnQK... cc @alona.page @wpaven.bsky.social

Gemini is far the best for every life day tasks, assisting, planning, etc. And Claude code is far the best for coding and other tech tasks. Did I miss anything that is better or even comes close to it?

End of an era. 😢

Its that time of the year where I keep using "by EOY" instead of "by EOD".

Do you like databases? Do you want to hear two database professors rant about them? Do you need one of those professors to have a Turing Award for databases? If yes, then join Mike Stonebraker and I next Wed Dec 10 @ 1:00pm EST for database hot takes: www.dbos.dev/webcast-2025...

When the cloudflare own page is down you know it is bad. 🫠 hugops to everyone oncall!

No Berlin? 😢

OH: Is the problem claudeable?

DataFusion 51.0.0 release blog: datafusion.apache.org/blog/2025/11...

Being on-call at the same time as my partner while both working from home, hearing a pager go off and not being sure whose it is, is a special kind of hell.

Sometimes an interface is so ubiquitous that performance limitations inherent to its design are just accepted. This has been our experience with Parquet. We switched to Vortex which aligned much better with our needs and saw a 70% performance improvement across the board. Read more below 👇

The database CEO wars on Twitter are the only reason I still check it.

Since when did we start doing black Friday on the Wednesday the week before.

Want to give a talk at the world's largest Rust conference? Don't forget to submit your talk proposals! 2026.rustweek.org/cfp/ See you there! 💛

Cloudflare seems to be having an outage www.cloudflarestatus.com

I submitted an expense report to myself and it auto-closed it. Why is that the default in expensify. You have one job. 🤦🏻‍♀️

Tried to do this with chatgpt and got this as the result. Its a work of art.😂

Distributed systems, some days I love them, some days I hate them. 😭

Async QUIC and HTTP/3 made easy: tokio-quiche is now open-source blog.cloudflare.com/async-quic-a...

Anyone come across a project that catalogs where you can fetch k8s components from? Eg cluster-api from GitHub releases, here are the links. Azure IAM controller, helm chart, here are the link. Plus compatible k8s versions and interdependencies? Seems a big job, but would be very helpful

Headed to AWS re:Invent? Visit us at booth 151! Come talk time series, real-time intelligence, and #InfluxDB 3 on Amazon Timestream for InfluxDB. Ask us anything about scaling on AWS, and enter our raffle while you're there: https://bit.ly/3LxQQeo

Tired of rage bait tech posts. If it doesn't add value, it's just wasting everyone's time.

New version of Rust Apache Arrow and Apache Parquet is out -- includes new new metadata parser, new avro reader, geometry and variant support 🤯 arrow.apache.org/blog/2025/10...

I noticed that cross-zone traffic has once again crept up on us at Polar Signals, so I dusted off kubezonnet, and implemented a few new features/bug fixes as I was troubleshooting. I present v0.2.0, which we just used to cut 62% of cross-zone traffic. Real money saved. github.com/polarsignals...

If you're at #UbuntuSummit Thursday and Friday, come hear me speak about how we created the world's first open-source low-overhead always-on #NVIDIA #CUDA Profiler! discourse.ubuntu.com/t/infrastruc... #performance #GPU

I could not be more excited about this. To our knowledge, the world's first open-source low-overhead always-on GPU profiler! As always, zero-instrumentation and powered by #eBPF!

Follow Up - Preventing Upgrade Failures from etcd v3.5 to v3.6-

Recovering from COVID first time, is like recovering from being run over by a bus. 😫

Native Histogram considered stable in @Prometheus.io going forward! 🥳 Props to all the people who worked on this for years!

Being alone when you are sick is the worst! I am just grateful I live in a city that offers such good delivery services so I can order everything I need home.

The week after I do a declutter of my tea cups I get sick and need extra cups.

So cool and parca.dev getting mentioned out of nowhere. Love to see it!

We are alarmed by reports that Germany is on the verge of a catastrophic about-face, reversing its longstanding and principled opposition to the EU’s Chat Control proposal which, if passed, could spell the end of the right to privacy in Europe. signal.org/blog/pdfs/ge...

If you are a German citizen, please consider contracting your MPs and Ministers. We’ve created a guide on what MPs to contact as well as example arguments: chat-kontrolle.eu/index.php/20...

‘Chief Of War’ Producers Confirm Season 2 Will Show Hawaiians Battling Mark Zuckerberg https://theonion.com/chief-of-war-producers-confirm-season-2-will-show-hawaiians-battling-mark-zuckerberg/

Love slack reminders but wish the snooze had random timing. Currently when I snooze everything “until Monday,” I get an absolute avalanche of 20+ notifications at 9am Monday😅 Why can’t we spread them out randomly throughout the day.

CloudFlare's Distributed R2 SQL engine's is a pretty good exemplar of how to build a serverless database to process petabytes in seconds using Apache DataFusion and Apache Parquet blog.cloudflare.com/r2-sql-deep-...

Wow the NBA packages for the Berlin NBA game next year are extra expensive. I get the feeling rarely anyone buys these and they are given to some sponsors. 😭

InfluxDB 3.4 is live! 🙌 Simplify cache management, automate tokens, and streamline licensing for smoother workflows and stronger security. See what’s new: https://bit.ly/45C4m8F

I shared more context on Reddit: www.reddit.com/r/databasede...

Profile.

The Kubernetes community mourns the sudden loss of Han Samuel Kang, 42, a talented engineer who brought exuberance to every contribution. He leaves behind a wife and two daughters. In lieu of flowers, please consider memorial donations: gofund.me/5ef5290f9

I was at a complete loss for words when the message reached me this morning. Cherish the time you have with your loved ones. Han, my friend, you will be dearly missed. I will never forget the memories we’ve built together. github.com/cncf/memoria...

stellar human gone too soon. i’ll always remember his joy at KubeCons even during booth duty. kubernetes community has many fond memories of Han. And as Solly says in the thread: > may his memory be a blessing to you as it is to me. (and hit that gofundme link for the fam)

fwiw, there's also a gofundme for his kids: gofund.me/cf6cbd066