unicorn_capistrano_config.rb

# example config from a nginx + unicorn + capistrano deploy to a VPS
# "app" is deployed to /var/www/app
# replace "app" with the app name

# The rule of thumb is to use 1 worker per processor core available,.
# however since we'll be hosting many apps on this server,.
# we need to take a less aggressive approach
worker_processes 2

# We deploy with capistrano, so "current" links to root dir of current release
working_directory "/var/www/app/current"

# Listen on unix socket
listen "/tmp/unicorn.app.sock", :backlog => 64
#listen 8080, :tcp_nopush => true

timeout 30

pid "/var/www/app/current/tmp/pids/unicorn.pid"

stderr_path "/var/www/app/current/log/unicorn.log"
stdout_path "/var/www/app/current/log/unicorn.log"

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!
end

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