Unicorn doesn't reload the app after the HUP signal

["Rubén Dávila" <ruben.grunge84@gmail.com>]

Hi folks, I've experimented a problem while deploying my app, I've
sent the HUP signal to the master process, I've checked everything is
ok: new master and workers are spawned and the old ones are
killed(I've checked the PIDs), but the new code deployed isn't
reflected in the living site, so I've to stop and start again unicorn
in order to see the new changes, here is my unicorn config:

rails_env = ENV['RAILS_ENV'] || 'production'
worker_processes (rails_env == 'production' ? 3 : 1)
preload_app true
timeout 30
listen File.expand_path(File.join(__FILE__,
"../../tmp/sockets/unicorn.sock")), :backlog => 2048

if GC.respond_to?(:copy_on_write_friendly=)
  GC.copy_on_write_friendly = true
end

before_fork do |server, worker|
  old_pid = RAILS_ROOT + '/tmp/pids/unicorn.pid.oldbin'
  if File.exists?(old_pid) && server.pid != old_pid
    begin
      Process.kill("QUIT", File.read(old_pid).to_i)
    rescue Errno::ENOENT, Errno::ESRCH
      # someone else did our job for us
    end
  end
end

after_fork do |server, worker|
  ActiveRecord::Base.establish_connection
  begin
    worker.user('peruautos', 'www-data') if Process.euid == 0
  rescue => e
    if RAILS_ENV == 'development'
      STDERR.puts "couldn't change user, oh well"
    else
      raise e
    end
  end
end

I'm using unicorn 1.1.2 and rack 1.0.1

Regards.
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