Here is a new blog about Parquet Variant, including use case, and shredding examples parquet.apache.org/blog/2026/02...

After a few years focusing on cloud platforms, I’ve moved back to core database engineering in January! I wanted to move to our InfluxDB 3 team because I missed working on DBs. It’s been an intense start to 2026, but the team gave me a warm welcome and I was able to start contributing quickly. 🦀

TIL: notary in Germany reads out the entire contract before you sign it. It sounds like my personal hell: sitting still for 2 hours while someone reads out loud a contract in German, and then you pay them for the privilege. 🫠

Benito is a threat b/c he makes art so alluring and enjoyable you want to understand everything about it and then you end up learning about sugar and slavery and colonialism and the Taínos and Hawaii and then you probably have some thoughts of your own, and that's why art is powerful and dangerous

Polar Signals at #FOSDEM 2026 day 2! Both talks in the Rust room. Profiling Rust applications with Parca Brennan at 12:30 @ UB2.252A (Rust) fosdem.org/2026/schedul... Frederic at 16:00 @ UB2.252A (Rust) Random seeds and state machines: An approach to DST in Rust fosdem.org/2026/schedul...

Polar Signals at #FOSDEM 2026 day 1! Tommy at 12:30 @ H.1308 (eBPF) OOMProf: Profiling Go heap memory at OOM time fosdem.org/2026/schedul... Thor at 17:25 @ UB2.252A (Databases) From Disks to Distributed: Our Journey of Database Evolution in the Cloud fosdem.org/2026/schedul...

Very excited for this year's #FOSDEM! Lots of talks by Polar Signals folks:

1/5 ➡️ Why Rust Will Help You Deliver Better Low-latency Systems and Happier Developers with Andrew Lamb bit.ly/47kgmwU @andrewlamb1111.bsky.social #RustLang #LowLatency

The hard things in computing: * cache eviction * naming things * figuring out which of your paying customers is DOSing your service

Super exciting to see two speakers from InfluxData here! 🎉

The irony of shortening my Balkan name to "Lili" for the convenience of others, only to have people spell it "Lilli." 🫠

I was laid off last week. I'm excited to start a new chapter where I can put my knowledge and dedication to work. I believe every chapter closes to make room for something more rewarding. I'm keen to discover the next opportunity. Learn more: www.linkedin.com/pos... #OpenToWork

I've posted my latest recap of the world of databases: www.cs.cmu.edu/~pavlo/blog/... All the hot topics from the last year: • More Postgres action! • MCP for everyone! • MongoDB gets litigious with FerretDB! • File formats! • Market movements! • The richest person in the history of the world!

I make it a point to be anywhere but Berlin on December 31st (IYKYK)! This year it was Bologna, amazing food, charming streets and celebrations among Italians for new year is so unique!

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.