rails_env = ENV['RAILS_ENV'] || 'production' worker_processes 4 preload_app true working_directory File.expand_path(File.join(File.dirname(__FILE__), "..")) # available in 0.94.0+ # listen '/tmp/rosa_build.sock', :backlog => 2048 # listen "/tmp/.sock", :backlog => 64 # listen 8080, :tcp_nopush => true # nuke workers after 30 seconds instead of 60 seconds (the default) timeout 600 # feel free to point this anywhere accessible on the filesystem pid File.expand_path(File.join(File.dirname(__FILE__), "..")) + '/tmp/pids/unicorn.pid' # REE # http://www.rubyenterpriseedition.com/faq.html#adapt_apps_for_cow if GC.respond_to?(:copy_on_write_friendly=) GC.copy_on_write_friendly = true end # By default, the Unicorn logger will write to stderr. # Additionally, ome applications/frameworks log to stderr or stdout, # so prevent them from going to /dev/null when daemonized here: stderr_path File.expand_path(File.join(File.dirname(__FILE__), "..")) + "/log/unicorn.stderr.log" stdout_path File.expand_path(File.join(File.dirname(__FILE__), "..")) + "/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 before_fork do |server, worker| ## # When sent a USR2, Unicorn will suffix its pidfile with .oldbin and # immediately start loading up a new version of itself (loaded with a new # version of our app). When this new Unicorn is completely loaded # it will begin spawning workers. The first worker spawned will check to # see if an .oldbin pidfile exists. If so, this means we've just booted up # a new Unicorn and need to tell the old one that it can now die. To do so # we send it a QUIT. # # Using this method we get 0 downtime deploys. old_pid = File.expand_path(File.join(File.dirname(__FILE__), "..")) + '/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 # This option works in together with preload_app true setting # What is does is prevent the master process from holding # the database connection defined?(ActiveRecord::Base) and ActiveRecord::Base.connection.disconnect! end after_fork do |server, worker| # Here we are establishing the connection after forking worker processes defined?(ActiveRecord::Base) and ActiveRecord::Base.establish_connection # if preload_app is true, then you may also want to check and # restart any other shared sockets/descriptors such as Memcached, # and Redis. TokyoCabinet file handles are safe to reuse # between any number of forked children (assuming your kernel # correctly implements pread()/pwrite() system calls) srand end