Env → Unicorn / Rails4 about que HOT 4 CLOSED

require File.expand_path('../boot', __FILE__)
・・・・#omit
require "que"
Bundler.require(:default, Rails.env)
module App
  class Application < Rails::Application
    ・・・・#omit
    # Que
    Que.mode = :off
    ・・・・#omit
end

APP_DIR = File.expand_path("../../", __FILE__)
preload_app true
worker_processes (ENV['RAILS_ENV'] == 'development' ? 1 : 2)
working_directory APP_DIR
timeout 30

unless ENV['RAILS_ENV'] == 'development'
  listen File.expand_path("tmp/sockets/unicorn.sock", ENV['RAILS_ROOT']), :backlog => 64
else
  listen 3000
end
pid File.expand_path("tmp/pids/unicorn.pid", ENV['RAILS_ROOT'])

stderr_path File.expand_path('log/unicorn.log', ENV['RAILS_ROOT'])
stdout_path File.expand_path('log/unicorn.log', ENV['RAILS_ROOT'])

before_fork do |server, worker|
  old_pid = "#{ server.config[:pid] }.oldbin"
  if File.exists?(old_pid) && server.pid != old_pid
    begin
      sig = (worker.nr + 1) >= server.worker_processes ? :QUIT : :TTOU
      Process.kill(sig, File.read(old_pid).to_i)
    rescue Errno::ENOENT, Errno::ESRCH
      # someone else did our job for us
    end
  end

  defined?(ActiveRecord::Base) and
    ActiveRecord::Base.connection.disconnect!
end

after_fork do |server, worker|
  Signal.trap 'TERM' do
    puts 'Unicorn worker intercepting TERM and doing nothing. Wait for master to send QUIT'
  end

  # Que
  require 'yaml'
  require "active_record"
  require 'que'
  config = YAML.load(File.read("config/database.yml"))["#{ENV['RAILS_ENV']}"]
  ActiveRecord::Base.establish_connection(config)
  Que.connection = ActiveRecord
  Que.mode = :async

  defined?(ActiveRecord::Base) and
    ActiveRecord::Base.establish_connection
end