john-shaffer

قبل 8 أشهرdiscuss

AWS announced Lambda durable functions today in a blog post titled "Build multi-step applications and AI workflows with AWS Lambda durable functions" [0]

[0] https://aws.amazon.com/blogs/aws/build-multi-step-applicatio...

john-shaffer

السنة الماضيةdiscuss

Related story with much more detail and comments: https://news.ycombinator.com/item?id=44105878

john-shaffer

قبل سنتينdiscuss

Have you considered https://github.com/dolthub/dolt for your use case?

john-shaffer

قبل سنتينdiscuss

But Nix is the best way to build images for dockerc.

john-shaffer

قبل سنتينdiscuss

Mostly playing around with stacking "powerful" words:

  King Kong + Power Ranger = King Kong Ranger (first)
  Megazord + Power Ranger = Power Megazord
  Megazord + Power Megazord or Artzord + Megazord = Ultrazord
  Dragonzord + Art = Artzord (first)
  Groot + Mega Artzord = Grootzord
  Megazord + Grootzord = Gigazord (first)
  Godzord + Giga Artzord = Giga Godzord (first)
  Giga Godzord + Giga Titanic Gigazord = Giga Titanic Godzord (first)
  Giga Titanic Godzord + Mega Power Godzillazord = Super Giga Mega Titanic Power Godzillazord (first)

I also got firsts on both Earthquake Laser and Laser Earthquake, but I'm not sure what the recipes were.

Trying to get Zebra was an interesting sequence.

  Tamer + Africa = Tamerlane (first)
  Tamerlane + Terror = Timur (first)
  Timur + Asia = Genghis Khan
  Genghis Khan + Bellerophon = Alexander the Great
  Alexander the Great + Unicorn = Bucephalus (first)
  Alexander the Great + Bucephalus = Horse
  Horse + Africa = Zebra

john-shaffer

قبل سنتينdiscuss

https://jobs.braveclojure.com/

john-shaffer

قبل سنتينdiscuss

Clojure itself actually loads pretty quickly, but almost every project has enough libraries to make loading the project take a few seconds.

john-shaffer

قبل 3 سنواتdiscuss

  export LC_ALL=C
  nix-shell -I nixpkgs=https://github.com/NixOS/nixpkgs/archive/2322899a1fa85f6547004b2829af81e7b444f506.tar.gz -p openssh
  ssh -V
  OpenSSH_6.1p1, OpenSSL 1.0.0i 19 Apr 2012

Note that the first stable release of nixpkgs was in 2013.

john-shaffer

قبل 3 سنواتdiscuss

> So how do I install the old version next to the new version in ubuntu 34.04?

You would install Nix and run something similar to "nix run nixpkgs-23.11#openssh <address>"

john-shaffer

قبل 3 سنواتdiscuss

This looks promising, but it doesn't work on personal accounts. I'm not ready to install it on my organization account just yet.

Can I expect complex caching actions like https://github.com/DeterminateSystems/magic-nix-cache to work as quickly as they do on GitHub?

john-shaffer

قبل 3 سنواتdiscuss

Clarification on file duplication: DVC tries to use reflinks if the filesystem supports it, and falls back on copying the files. It can be configured to use hardlinks instead for filesystems like ext4 [0]. This improves performance significantly.

[0] https://dvc.org/doc/user-guide/project-structure/configurati...

john-shaffer

قبل 3 سنواتdiscuss

DVC is slow because it stores and writes data twice, and the default of dozens of concurrent downloads causes resource starvation. They finally improved uploads in 3.0, but downloads and storage are still much worse than a simple "aws s3 cp". You can improve pull performance somewhat by passing a reasonable value for --jobs. Storage can be improved by nuking .dvc/cache. There's no way to skip writing all data twice though.

Look for something with good algorithms. Xethub worked very well for me, and oxen looks like a good alternative. git-xet has a very nice feature that allows you to mount a repo over the network [0]

[0] https://about.xethub.com/blog/mount-part-1

john-shaffer

قبل 3 سنواتdiscuss

Performance with Docker is slightly worse, but it shouldn't be an issue for a long-running process. The main problem I've run into is that, by default, Docker logs will eventually fill the disk and crash the server. You have to change the logging system and then delete and recreate all of your containers, because there is no way to change the logging system for existing containers.

john-shaffer

قبل 3 سنواتdiscuss

Thanks. I had no idea D2 was on switch, and it's on sale for $13! [1]

[1] https://www.nintendo.com/store/products/diablo-ii-resurrecte...

john-shaffer

قبل 3 سنواتdiscuss

malli, specter, and calva are all less than ten years old. Clojure has seen a lot of progress in tooling and libraries.

john-shaffer

قبل 4 سنواتdiscuss

IIRC, posts with more comments than votes are automatically penalized. It is #11 on the front page now, though.

john-shaffer

قبل 4 سنواتdiscuss

Polylith does a good job of solving this: https://polylith.gitbook.io/polylith/

john-shaffer

قبل 4 سنواتdiscuss

Have you had problems with Nix on macOS? Nix works great for me, but I can't use it much to deal with installs or synchronize dependencies because the devs on macOS can't get Nix running.

john-shaffer

قبل 4 سنواتdiscuss

I have no affiliation, but I tried the free trial of their tool and I found that the Code Health metrics made a lot of sense. The files that it pointed out are definitely overly complex and more difficult to change than they need to be. But it gave perfect scores to some files with complex jobs that are better-designed. I recommend just giving it a spin on a codebase that you are very familiar with.

john-shaffer

قبل 4 سنواتdiscuss

In production, I may only want one connection pool to a DB, and in that case global state is pretty much equivalent to passing state as an argument. Development in a Clojure REPL is a different story. I have one connection pool for the dev server, and a separate pool to run tests against. The test db is re-created from a template between each test run, without affecting the dev db at all. I can trivially have multiple test pools if I want to run tests concurrently.

I also have a separate service that the server makes calls to, which doesn't run on this server in production (it has its own production server), but does run in dev and test. Each dev/test system runs a separate instance of this service, which has its own separate connection pool(s), and setting this up was trivial.

Needless to say, failures are reproducible and meaningful. There is no mocking -- we test against real local services with real local DBs. (There are still some remote service calls which I'm slowly replacing, and some flakey, unavoidable remote dependencies in a few browser tests).

I didn't do anything special to make this possible other than naming the config files "service-name-config" instead of just "config". It is just the natural result of passing state in explicit arguments. The same is not true of global state.

john-shaffer

Submissions

Lambda Durable Functions

My case against mocking frameworks

Code quality: measuring the business impact of unhealthy code

Clojure, Faster

What is your take on checking return values?

Linux 5.8-rc1

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