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Last active December 13, 2015 19:48
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Heroku-Rails-app-queue-time-optimization.md

Fixing Heroku's random queuing router

So Heroku routes their requests to your dynos randomly. While you're enhancing your middleware to log that dyno-level queue time, I have an optimization for you that should help fix the issue outright!

Rails 3 apps, or 2.3 with Bundler, and Ruby 1.9

Gemfile

gem 'rack-timeout'

config/initializer/queue-fix.rb

Rack::Timeout.timeout = 0.5

Rails 3 apps, or 2.3 with Bundler, and Ruby 1.8

Gemfile

gem 'SystemTimer', :require => 'system_timer', :platforms => :ruby_18
gem 'rack-timeout'

config/initializers/queue-fix.rb

Rack::Timeout.timeout = 0.5
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