Karl-Johan Nilsson
@kjnilsson.bsky.social
Works on RabbitMQ (Pivotal/VMware/Broadcom). Consensus, data storage.
Oh and electronic music.
Oh and electronic music.
More Slow Horses now please.
November 2, 2025 at 10:00 PM
More Slow Horses now please.
Reposted by Karl-Johan Nilsson
🚀 #RabbitMQ 4.2.0 has just been released!
🔗 github.com/rabbitmq/rab...
🔍 Key highlights:
• Khepri as the default metadata store
• Server-side #SQL filter expressions for streams
• Direct Reply-To support for #AMQP 1.0
• Local shovels
🔗 github.com/rabbitmq/rab...
🔍 Key highlights:
• Khepri as the default metadata store
• Server-side #SQL filter expressions for streams
• Direct Reply-To support for #AMQP 1.0
• Local shovels
Release RabbitMQ 4.2.0 · rabbitmq/rabbitmq-server
RabbitMQ 4.2.0 is a new feature release.
Breaking Changes and Compatibility Notes
Default value for AMQP 1.0 durable field.
Starting with RabbitMQ 4.2, if a sending client omits the header section,...
github.com
October 29, 2025 at 7:55 AM
🚀 #RabbitMQ 4.2.0 has just been released!
🔗 github.com/rabbitmq/rab...
🔍 Key highlights:
• Khepri as the default metadata store
• Server-side #SQL filter expressions for streams
• Direct Reply-To support for #AMQP 1.0
• Local shovels
🔗 github.com/rabbitmq/rab...
🔍 Key highlights:
• Khepri as the default metadata store
• Server-side #SQL filter expressions for streams
• Direct Reply-To support for #AMQP 1.0
• Local shovels
Autechre
Paul Simon
Smashing Pumpkina
Bob Dylan
Boards of Canada
Suede
SND
Low
Paul Simon
Smashing Pumpkina
Bob Dylan
Boards of Canada
Suede
SND
Low
Define your musical taste in eight artists
Moderat
Radiohead
Jon Hopkins
Massive Attack
Bicep
David Devant and His Spirit Wife
Orbital
The Prodigy
Moderat
Radiohead
Jon Hopkins
Massive Attack
Bicep
David Devant and His Spirit Wife
Orbital
The Prodigy
Define your musical taste in eight artists
Yes
Pink Floyd
The Beatles
King Gizzard And The Lizard Wizard
Sly And The Family Stone
Cardiacs
The Zombies
Geese
Yes
Pink Floyd
The Beatles
King Gizzard And The Lizard Wizard
Sly And The Family Stone
Cardiacs
The Zombies
Geese
October 19, 2025 at 9:27 AM
Autechre
Paul Simon
Smashing Pumpkina
Bob Dylan
Boards of Canada
Suede
SND
Low
Paul Simon
Smashing Pumpkina
Bob Dylan
Boards of Canada
Suede
SND
Low
The best thing about database transactions is that if they stall it isn’t your fault as a developer, it’s the DBA’s.
September 26, 2025 at 3:59 PM
The best thing about database transactions is that if they stall it isn’t your fault as a developer, it’s the DBA’s.
Reposted by Karl-Johan Nilsson
Reposted by Karl-Johan Nilsson
#RabbitMQ 4.2 introduces broker-side #SQL filtering for streams - making it possible to deliver only the messages your consumers actually need, reducing network traffic and client overhead.
Learn more in our latest blog post:
www.rabbitmq.com/blog/2025/09...
Or watch the demo:
youtu.be/d7SxPmVqfjg
Learn more in our latest blog post:
www.rabbitmq.com/blog/2025/09...
Or watch the demo:
youtu.be/d7SxPmVqfjg
Broker-Side SQL Filtering with RabbitMQ Streams | RabbitMQ
RabbitMQ 4.2 introduces SQL filter expressions for streams, enabling powerful broker-side message filtering.
www.rabbitmq.com
September 24, 2025 at 5:58 PM
#RabbitMQ 4.2 introduces broker-side #SQL filtering for streams - making it possible to deliver only the messages your consumers actually need, reducing network traffic and client overhead.
Learn more in our latest blog post:
www.rabbitmq.com/blog/2025/09...
Or watch the demo:
youtu.be/d7SxPmVqfjg
Learn more in our latest blog post:
www.rabbitmq.com/blog/2025/09...
Or watch the demo:
youtu.be/d7SxPmVqfjg
Reposted by Karl-Johan Nilsson
The new Rival Consoles release is v. good.
July 16, 2025 at 12:29 PM
The new Rival Consoles release is v. good.
If in doubt. Blame DNS.
June 16, 2025 at 12:50 PM
If in doubt. Blame DNS.
Reposted by Karl-Johan Nilsson
Just a quick note to say that I'm currently looking for work. Either Node/Typescript or .NET/C#. Happy to consider contract or perm, but must be remote.
Thanks all!
RT appreciated 🙏
Thanks all!
RT appreciated 🙏
May 29, 2025 at 12:25 PM
Just a quick note to say that I'm currently looking for work. Either Node/Typescript or .NET/C#. Happy to consider contract or perm, but must be remote.
Thanks all!
RT appreciated 🙏
Thanks all!
RT appreciated 🙏
The rain is welcome. It’s good not to have any pressure to go out for a nice evening walk.
May 21, 2025 at 4:05 PM
The rain is welcome. It’s good not to have any pressure to go out for a nice evening walk.
Henderson should keep for England.
May 17, 2025 at 4:27 PM
Henderson should keep for England.
9 years of working on the RabbitMQ message broker today. What fun.
May 16, 2025 at 2:07 PM
9 years of working on the RabbitMQ message broker today. What fun.
Reposted by Karl-Johan Nilsson
This is always the correct course of action.
May 11, 2025 at 7:30 PM
This is always the correct course of action.
Reposted by Karl-Johan Nilsson
Are you feeling anxious? Depressed? Ennui?
These are the top signs you need to buy another synthesizer.
Another synthesizer is what you need.
You certainly won't regret buying another synthesizer.
These are the top signs you need to buy another synthesizer.
Another synthesizer is what you need.
You certainly won't regret buying another synthesizer.
May 11, 2025 at 2:26 AM
Are you feeling anxious? Depressed? Ennui?
These are the top signs you need to buy another synthesizer.
Another synthesizer is what you need.
You certainly won't regret buying another synthesizer.
These are the top signs you need to buy another synthesizer.
Another synthesizer is what you need.
You certainly won't regret buying another synthesizer.
4.1 contains a refactored log impl for the raft library that quorum queues and Khepri uses (Ra). In particular we disconnected the lifetime of the memtables from the WAL, allowing much more flexibility around how memory can be reclaimed resulting in a lower and more intuitive memory use profile.
🚀 #RabbitMQ 4.1.0 is out!
This release includes improvements to:
* Quorum Queues
* #AMQP 1.0
* Feature Flags
Full release notes 👉 github.com/rabbitmq/rab...
This release includes improvements to:
* Quorum Queues
* #AMQP 1.0
* Feature Flags
Full release notes 👉 github.com/rabbitmq/rab...
Release RabbitMQ 4.1.0 · rabbitmq/rabbitmq-server
RabbitMQ 4.1.0 is a new feature release.
See Compatibility Notes below to learn about breaking or potentially breaking changes in this release.
Highlights
Some key improvements in this release are ...
github.com
April 16, 2025 at 9:18 AM
4.1 contains a refactored log impl for the raft library that quorum queues and Khepri uses (Ra). In particular we disconnected the lifetime of the memtables from the WAL, allowing much more flexibility around how memory can be reclaimed resulting in a lower and more intuitive memory use profile.
Reposted by Karl-Johan Nilsson
🚀 #RabbitMQ 4.1.0 is out!
This release includes improvements to:
* Quorum Queues
* #AMQP 1.0
* Feature Flags
Full release notes 👉 github.com/rabbitmq/rab...
This release includes improvements to:
* Quorum Queues
* #AMQP 1.0
* Feature Flags
Full release notes 👉 github.com/rabbitmq/rab...
Release RabbitMQ 4.1.0 · rabbitmq/rabbitmq-server
RabbitMQ 4.1.0 is a new feature release.
See Compatibility Notes below to learn about breaking or potentially breaking changes in this release.
Highlights
Some key improvements in this release are ...
github.com
April 15, 2025 at 4:49 PM
🚀 #RabbitMQ 4.1.0 is out!
This release includes improvements to:
* Quorum Queues
* #AMQP 1.0
* Feature Flags
Full release notes 👉 github.com/rabbitmq/rab...
This release includes improvements to:
* Quorum Queues
* #AMQP 1.0
* Feature Flags
Full release notes 👉 github.com/rabbitmq/rab...
Reposted by Karl-Johan Nilsson
New blog post on Quorum Queue performance improvements in #RabbitMQ 4.1 🚄
www.rabbitmq.com/blog/2025/04...
www.rabbitmq.com/blog/2025/04...
RabbitMQ 4.1 Performance Improvements | RabbitMQ
RabbitMQ 4.1 is just around the corner and, as usual, apart from new features,
www.rabbitmq.com
April 11, 2025 at 11:54 AM
New blog post on Quorum Queue performance improvements in #RabbitMQ 4.1 🚄
www.rabbitmq.com/blog/2025/04...
www.rabbitmq.com/blog/2025/04...
Reposted by Karl-Johan Nilsson
Reposted by Karl-Johan Nilsson
I mean, true, but not by changing statutory rates...
April 6, 2025 at 11:33 PM
I mean, true, but not by changing statutory rates...
Reposted by Karl-Johan Nilsson
i've changed my mind, cursor is officially now the best AI code generation tool forum.cursor.com/t/cursor-tol...
Cursor told me I should learn coding instead of asking it to generate it + limit of 800 locs
Hi all, Yesterday I installed Cursor and currently on Pro Trial. After coding a bit I found out that it can’t go through 750-800 lines of code and when asked why is that I get this message: Not s...
forum.cursor.com
March 12, 2025 at 10:03 AM
i've changed my mind, cursor is officially now the best AI code generation tool forum.cursor.com/t/cursor-tol...
Reposted by Karl-Johan Nilsson
Why is so much modern electronic music completely lacking in melody, but tediously melodious? Happy to give up tunes ‘n’ riffs if there’s interesting stuff going on, but arpeggiators will never write a melody for you.
March 5, 2025 at 7:59 AM
Why is so much modern electronic music completely lacking in melody, but tediously melodious? Happy to give up tunes ‘n’ riffs if there’s interesting stuff going on, but arpeggiators will never write a melody for you.