Sidekiq
Puma
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Sidekiq | Puma | |
---|---|---|
88 | 40 | |
12,913 | 7,573 | |
0.7% | 0.5% | |
8.9 | 8.7 | |
2 days ago | 7 days ago | |
Ruby | Ruby | |
GNU Lesser General Public License v3.0 only | BSD 3-clause "New" or "Revised" License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Sidekiq
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3 one-person million dollar online businesses
Sidekiq https://sidekiq.org/: This one started as an open source project, once it got enough traction, the developer made a premium version of it, and makes money by selling licenses to businesses.
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Choose Postgres Queue Technology
Sidekiq will drop in-progress jobs when a worker crashes. Sidekiq Pro can recover those jobs but with a large delay. Sidekiq is excellent overall but it’s not suitable for processing critical jobs with a low latency guarantee.
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We built the fastest CI in the world. It failed
> I'm not sure feature withholding has traditionally worked out well in the developer space.
I think it's worked out well for Sidekiq (https://sidekiq.org). I really like their model of layering valuable features between the OSS / Pro / Enterprise licenses.
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Exploring concurrent rate limiters, mutexes, semaphores
I was studying Sidekiq's page on rate limiters. The first type of rate limiting mentioned is the concurrent limiter: only n tasks are allowed to run at any point in time. Note that this is independent of time units (e.g. per second), or how long they take to run. The only limitation is the number of concurrent tasks/requests.
- Ask HN: What are some of the most elegant codebases in your favorite language?
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Sidekiq and managing resumable jobs?
Uses Sidekiq's "fake" testing mode which will allow you to run the jobs explicitly
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Organize Business Logic in Your Ruby on Rails Application
The code above isn't idempotent. If you run it twice, it will create two copies, which is probably not what you intended. Why is this important? Because most backend job processors like Sidekiq don't make any guarantees that your jobs will run exactly once.
There are several workarounds for this, like the magnificent Acidic Job gem or Sidekiq Pro/Enterprise features around enhanced reliability and unique jobs. Still, if they occur, bugs related to missing jobs and/or job idempotency are hard to track down and even harder to fix.
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Where can I learn to deliver a proper solution?
I forgot to mention that reading code is also a good way to learn how to write code, it's like inspiration. Check repos of some gems you like. For example sidekiq https://github.com/sidekiq/sidekiq/tree/main/lib/sidekiq Or minitest https://github.com/minitest/minitest/tree/master/lib/minitest
Puma
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Breaking the 300 barrier
As we use Puma as our webserver for our rails application, I quickly went to Puma's config file which typically resides in config/puma.rb. The config was set as
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Would you consider Rails as stable nowadays ?
They do! It's in the first section of the readme on the repo:
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Hosting Rails App on AWS
Start with service with systemd
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Could not detect rake tasks
# Use the Puma web server [https://github.com/puma/puma] gem "puma", "~> 5.0" # Build JSON APIs with ease [https://github.com/rails/jbuilder] # gem "jbuilder" gem 'rack-cors' gem "devise" gem "jsonapi-serializer" gem 'devise-jwt' gem 'active_model_serializers' gem 'followability' gem 'dotenv-rails', groups: [:development, :test, :production] gem 'sprockets' # Use Redis adapter to run Action Cable in production # gem "redis", "~> 4.0" # Use Kredis to get higher-level data types in Redis [https://github.com/rails/kredis] # gem "kredis" # Use Active Model has_secure_password [https://guides.rubyonrails.org/active_model_basics.html#securepassword] # gem "bcrypt", "~> 3.1.7" # Windows does not include zoneinfo files, so bundle the tzinfo-data gem gem "tzinfo-data", platforms: %i[ mingw mswin x64_mingw jruby ] # Reduces boot times through caching; required in config/boot.rb gem "bootsnap", require: false # Use Active Storage variants [https://guides.rubyonrails.org/active_storage_overview.html#transforming-images] # gem "image_processing", "~> 1.2" # Use Rack CORS for handling Cross-Origin Resource Sharing (CORS), making cross-origin AJAX possible # gem "rack-cors" group :development, :test do # See https://guides.rubyonrails.org/debugging_rails_applications.html#debugging-with-the-debug-gem gem "debug", platforms: %i[ mri mingw x64_mingw ] end group :development do gem "sqlite3", "~> 1.4" # Speed up commands on slow machines / big apps [https://github.com/rails/spring] # gem "spring" end group :production do gem 'pg' end
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Dusting off my rails knowledge, need some tips / guidance on rails 7 and production
source "https://rubygems.org" git_source(:github) { |repo| "https://github.com/#{repo}.git" } ruby "3.1.0" # Bundle edge Rails instead: gem "rails", github: "rails/rails", branch: "main" gem "rails", "~> 7.0.4", ">= 7.0.4.2" # The original asset pipeline for Rails [https://github.com/rails/sprockets-rails] gem "sprockets-rails" # Use sqlite3 as the database for Active Record gem "sqlite3", "~> 1.4" # Use the Puma web server [https://github.com/puma/puma] gem "puma", "~> 5.0" # Use JavaScript with ESM import maps [https://github.com/rails/importmap-rails] gem "importmap-rails" # Hotwire's SPA-like page accelerator [https://turbo.hotwired.dev] gem "turbo-rails" # Hotwire's modest JavaScript framework [https://stimulus.hotwired.dev] gem "stimulus-rails" # Build JSON APIs with ease [https://github.com/rails/jbuilder] gem "jbuilder" gem "mongoid" gem "mongoid-grid_fs" gem 'bootstrap', '~> 5.2.2' #sourced from https://github.com/twbs/bootstrap-rubygem gem 'rack-cors' # Windows does not include zoneinfo files, so bundle the tzinfo-data gem gem "tzinfo-data", platforms: %i[ mingw mswin x64_mingw jruby ] # Reduces boot times through caching; required in config/boot.rb gem "bootsnap", require: false
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Write your own Domain Specific Language in Ruby
That doesn't mean one excludes the other. Gems like Puma use the instance_eval method for their configuration file.
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puma 6.0 released
Anyway I did it: https://github.com/puma/puma/issues/3003 It's quite more complicated: https://github.com/puma/puma/issues/2999 A fix is in progress: https://github.com/puma/puma/pull/3002
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Pitchfork: Rack HTTP server for shared-nothing architecture
I'm the author of the original 'refork' feature introduced to Puma a couple years ago [1], that served as an inspiration for this project.
As I understand it, Pitchfork is an implementation of a reforking feature on top of Unicorn, a single-threaded multi-process Rack HTTP server.
The general idea of 'reforking' is that in addition to pre-forking worker processes at initialization time, you re-fork them on an ongoing basis, in order to optimize copy-on-write efficiency across processes, especially for memory allocations that might happen after initialization. The Pitchfork author mentions sharing YJIT machine code as a particularly important use-case [2], one that has become relevant in recent Ruby releases.
I never saw much interest in the concept when I originally introduced the reforking feature to Puma, and it remained a kind of interesting experiment that never saw much production uptake. I'm thrilled that Shopify is iterating on the concept through this project and I hope the technique will continue to be refined and developed, and see broader adoption as a result.
What are some alternatives?
Thin - A very fast & simple Ruby web server
falcon - A high-performance web server for Ruby, supporting HTTP/1, HTTP/2 and TLS.
Resque - Resque is a Redis-backed Ruby library for creating background jobs, placing them on multiple queues, and processing them later.
Sneakers - A fast background processing framework for Ruby and RabbitMQ
Shoryuken - A super efficient Amazon SQS thread based message processor for Ruby
Sucker Punch - Sucker Punch is a Ruby asynchronous processing library using concurrent-ruby, heavily influenced by Sidekiq and girl_friday.
Phusion Passenger - A fast and robust web server and application server for Ruby, Python and Node.js
Apache Kafka - Mirror of Apache Kafka
celery - Distributed Task Queue (development branch)
Delayed::Job - Database based asynchronous priority queue system -- Extracted from Shopify
good_job - Multithreaded, Postgres-based, Active Job backend for Ruby on Rails.
Iodine - iodine - HTTP / WebSockets Server for Ruby with Pub/Sub support