gistfile1.txt

before_fork do |server, worker|
  # No need for master process to hold a connection
  defined?(ActiveRecord::Base) and
    ActiveRecord::Base.connection.disconnect!

  # Kill off the old master
  old_pid = "#{server.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 kiled off the old master
    end
  end
end