Unicorn worker killer + out-of-band garbage collection

config.ru

require 'bundler'
Bundler.setup

require 'unicorn'

begin
  # Unicorn self-process killer
  require 'unicorn/worker_killer'

  # Max requests per worker
  use Unicorn::WorkerKiller::MaxRequests, 1000, 1500

  # Max memory size (RSS) per worker
  mb = 1024**2
  use Unicorn::WorkerKiller::Oom, 400*mb, 500*mb

  # Run garbage collection between requests
  require 'unicorn/oob_gc'
  GC.disable
  use Unicorn::OobGC, 30 # each 30 requests
rescue LoadError
end

require ::File.expand_path('../config/environment',  __FILE__)
run Rails.application