Starting to feel festive 🎄🥰 All-in on the coffee theme this year. Crosby Coffee’s whole bean Advent calendar at the back and Rave’s coffee chocolate one at the front ☕️

If you're in Berlin today, I'm doing my first ever market with my glass - at #Weddingmarkt Christmas Market on Leopoldplatz - from 11:00 - 19:00! (i'm... a lil terrified, but I did make a bunch of cute mini vases so....)

The Computer Wants to Lose Your Data: Bonus Bits A footnote to my #SREcon talk on how databases implement crash safety, with extra details for database nerds ✌🏻💖 blog.sinjakli.co.uk/2025/11/29/t... #Postgres #MySQL

The Computer Wants to Lose Your Data: Bonus Bits A footnote to my #SREcon talk on how databases implement crash safety, with extra details for database nerds ✌🏻💖 blog.sinjakli.co.uk/2025/11/29/t... #Postgres #MySQL

Every now and then I stumble across an underrated article. An example: "Measuring Latencies Between AWS Availability Zones" (link below). An incredible resource for anyone building on AWS. What are your favorite, lesser-known blogs? www.bitsand.cloud/posts/cross-...

I am normal and can be trusted with the cables

Some days I wish I had a more interactive code review tool than GitHub's. I'm looking over a PR for a pretty gnarly change in a C project and I want to write notes all over it that I reference later. I'm genuinely tempted to print the thing and go over it with a pen like a teacher.

Intercom is powered by nearly 1000 MySQL instances. Sharding brought to you by Vitess. Amazing talk by Eugene Kenny at SF Ruby conf.

SUVs in London are really getting out of hand.

Friendly reminder to always check your email 😅

Postgres uses TOAST to store large, variable-sized data values like JSONB and TEXT. Using it impacts performance, so you gotta know the tradeoffs.

For anyone waiting for the video: my #SREcon talk is now up! Lots of deep details in there about how hard it is to store data reliably and how tiny mistakes can turn into big problems.

How do Postgres and MySQL achieve data durability? Our very own Chris Sinjakli spoke at SREcon about how this works and the many engineering challenges it presents. Watch on YouTube: www.youtube.com/watch?v=bFGN...

You have to give Great British Railways extra credit for hitting the @xkcd.com "Standards" number right on the nose www.gov.uk/government/p...

Just realised we’ve reached the point in the year where I only want to listen to jazz. Something about the cold days and long nights puts my brain in that place 🍂 Today it’s the Dave Brubeck Quartet’s Last Time Out open.qobuz.com/album/088644...

wifes love asking shit like "Honey, what is the Blowjob Olympics?" and "Why is 'Blowjob Olympics' listed on our CC statement like 14 times"

PlanetScale Insights is amazing. Correlating schema/config changes and performance has never been easier. The perfect tool for squeezing every ounce of performance out of your database resources.

Turns out you can communicate across containers via 63-bits of available space in a shared lock you acquire on /proc/self/ns/time that all processes have access to. No networking required. The post has a demo of a chat app communicating across unprivileged containers. h4x0r.org/funreliable/

life hack: if your company enforces a return-to-office policy, you can get two badge scans for free every week by crashing on the sofas after going drinking at the weekend

not a huge fan of being jumpscared by fireworks during savasana!

All the IOPS you can eat, now on a smaller plate.

microsoft teams is more of an everything app than x will ever be siri send tweet

they should make 1password 4 again

Remember to be considerate tonight while trick-or-treating!

“yes, I want to restart my computer now” buddy, “want” is a strong word, but we both know you’re gonna make me

This is my favorite article on B-tree internals. Jeremy Cole has done MySQL at Twitter, Google, and Shopify. One of the most knowledgeable MySQL engineers in the world, and his blog is an information goldmine. blog.jcole.us/2013/01/10/b...

damnit, I thought I was safe, but my prusa core one hasn’t updated its clock

Haul of interesting #coffee from my Dublin trip, along with @jameshoffmann.bsky.social’s latest book that was waiting for me when I got home 💖☕️

when I was growing up, I always thought it was crazy that old people still called it a marathon instead of a snickers recently, I’ve learned that I will always call it a retweet, no matter which platform I’m on

raising funds for my new startup which sells a device that detects customers taking phone calls on speaker in coffee shops and directionally EMPs their table i’m looking for 1% at a $10b valuation i have no idea how to build any of this but i’m sure you agree it’s important

the height of technology in my bed is wool and a lot of springs. you don't need all this bullshit if you start with breathable materials www.dexerto.com/entertainmen...

[extremely bbc news reporter voice] if you think back to the ever given blocking the suez canal, this is similar to that, but on the information superhighway

the people who say software can be finished have very obviously never owned a house maintenance up the wazoo

airpods pro transparency switching is uncanny. deffo picking a pair up from whoever discounts them them most in the next month

seeing someone being accused of using an llm to write an article because it summarised some points in a bulleted list is a fucking trip like I hate landing on poor quality slop, but people are starting to see ghosts over this shit

you know shit is getting real when you break out terraform's `setproduct`

TIL: the scroll-margin CSS property. If you have a sticky header and are annoyed that when you click an anchor it goes under the header, you want a scroll-margin. Setting, e.g., scroll-margin-top: 150px will scroll to 150px below where it would have. developer.mozilla.org/en-US/docs/W...

Have a row contention problem? Try slotted counters! This is a neat technique for spreading out increments across many rows to reduce contention.

If you were at my talk – The Computer Wants to Lose Your Data – the slides are now up! Here's the customary 1000ft view of about half of them. speakerdeck.com/sinjo/comput... #SREcon

OH "If any of you are using Ubuntu 16.04...maybe don't raise your hands." #SREcon

I was getting some talk practice in last night and the only surface that was the right height in my hotel room was the tea & coffee cubby, so uh… #SREcon

Very cool and good to see that Discord have leaked a bunch of people’s IDs that they were forced to send in when automated age verification failed. It’s a shame nobody predicted this extremely obvious outcome of the OSA. ID fraudsters will have a field day!

If you describe your queue as having "exactly-once" delivery and then say that messages will be retried after a timeout...does that not give you a hint about the actual behaviour of your queue?

Vitess databases on PlanetScale support sophisticated vector search. We've published a deep-dive on how we built this for MySQL in a way that is scalable, performant, and ACID-compliant.

Our SIGMOD paper with our friends at Tsinghua + @wesmckinney.com + @pateljm.bsky.social on creating a next generation open-source data file format is out. F3 is a future-proof file format avoids the mistakes of Parquet. 📄 Paper: db.cs.cmu.edu/papers/2025/... 📁 Code: github.com/future-file-...

First end-to-end run through of my #SREcon talk done. Spotted some sections where I can improve the flow. Exactly on time, but I was speaking quickly so I'll probably trim a little material. Happy with it overall.

i'm sorry to say this but if you send me a tiktok of a person telling a story into the camera for 3 minutes i'm not fucking watching it. just in general ever. people need to start typing things up again because i can read so much faster than you can talk and i'm not wasting my precious time on this

happy annual “which bag did I leave my presentation clicker in?” to all my infrequent conference speaker friends 🥰

Sharding is the best way to scale a relation database. This is exactly how Meta, Uber, Slack, and many others achieve petabyte-scale databases. The two most popular techniques: hash-based and range-based sharding.