Unicorn configuration

unicorn.rb

# unicorn_rails -c config/unicorn.rb -E production -D
worker_processes 4

user "synbioz", "users"
working_directory "/var/www/fake/current"

listen "/var/www/fake/shared/sockets/unicorn.sock", :backlog => 1024
pid "/var/www/fake/shared/pids/unicorn.pid"

# nuke workers after 30 seconds instead of 60 seconds (the default)
timeout 30

stderr_path "/var/www/fake/shared/log/unicorn.stderr.log"
stdout_path "/var/www/fake/shared/log/unicorn.stdout.log"

# combine REE with "preload_app true" for memory savings
# http://rubyenterpriseedition.com/faq.html#adapt_apps_for_cow
preload_app true
GC.respond_to?(:copy_on_write_friendly=) and
  GC.copy_on_write_friendly = true

before_fork do |server, worker|
  defined?(ActiveRecord::Base) and ActiveRecord::Base.connection.disconnect!

  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
    end
  end

end

after_fork do |server, worker|
  defined?(ActiveRecord::Base) and
    ActiveRecord::Base.establish_connection
end