如何監控生產的後臺作業，queue_classic

我使用queue_classic的後臺作業，
我需要監控後臺作業在生產中即啓動，停止等
我發現similar question但它並沒有幫助我
另外，我發現了上帝的代碼：
但我怎麼會停下來，重新啓動工人？如何監控生產的後臺作業，queue_classic

number_queues.times do |queue_num| 
    God.watch do |w| 
    w.name = "QC-#{queue_num}" 
    w.group = "QC" 
    w.interval = 5.minutes 
    w.start = "bundle exec rake queue:work" # This is your rake task to start QC listening 
    w.gid = 'nginx' 
    w.uid = 'nginx' 
    w.dir = rails_root 
    w.keepalive 
    w.env = {"RAILS_ENV" => rails_env} 
    w.log = "#{log_dir}/qc.stdout.log" # Or.... "#{log_dir}//qc-#{queue_num}.stdout.log" 

    # determine the state on startup 
    w.transition(:init, { true => :up, false => :start }) do |on| 
     on.condition(:process_running) do |c| 
     c.running = true 
     end 
    end 
    end 
end

UPDATE
此代碼似乎不起作用

namespace :queue_classic do 
    desc "Start QC worker" 
    task :start, roles: :web do 
    run "cd #{release_path} && RAILS_ENV=production bundle exec rake qc:work" 
    end 
    after "deploy:restart", "queue_classic:restart" 
end

來源

2014-03-04 Aydar Omurbekov