gistfile1.rb

# run with: god -c /path/to/config.god [add -D if you want to not-deamonize god] 
# This is the actual config file used to keep the delayed_job running 

APPLICATION_ROOT = "/var/www/application"
RAILS_ENV = "production"

God.watch do |w| 
  w.name = "delayed_job_production"
  w.interval = 15.seconds 
  w.start = "/bin/bash -c 'cd #{APPLICATION_ROOT}/current; /usr/bin/env RAILS_ENV=#{RAILS_ENV} #{APPLICATION_ROOT}/current/script/delayed_job start > /tmp/delay_job.out'"
  w.stop = "/bin/bash -c 'cd #{APPLICATION_ROOT}/current; /usr/bin/env RAILS_ENV=#{RAILS_ENV} #{APPLICATION_ROOT}/current/script/delayed_job stop'"
  w.log = "#{APPLICATION_ROOT}/shared/log/god_delayed_job.log"
  w.start_grace = 30.seconds 
  w.restart_grace = 30.seconds 
  w.pid_file = "#{APPLICATION_ROOT}/shared/pids/delayed_job.pid"

  w.behavior(:clean_pid_file) 

  w.start_if do |start| 
    start.condition(:process_running) do |c| 
      c.interval = 5.seconds 
      c.running = false 
    end 
  end 

  w.restart_if do |restart| 
    restart.condition(:memory_usage) do |c| 
      c.above = 300.megabytes 
      c.times = [3, 5] # 3 out of 5 intervals 
    end 

    restart.condition(:cpu_usage) do |c| 
      c.above = 50.percent 
      c.times = 5 
    end 
  end 

  # lifecycle 
  w.lifecycle do |on| 
    on.condition(:flapping) do |c| 
      c.to_state = [:start, :restart] 
      c.times = 5 
      c.within = 5.minute 
      c.transition = :unmonitored 
      c.retry_in = 10.minutes 
      c.retry_times = 5 
      c.retry_within = 2.hours 
    end 
  end 
end