生產中無法啓動獨角獸 - 無法將路徑名轉換爲字符串（TypeError）

Question

我有一個Rails 3（Spree）應用程序，我可以從開發開始但不開始生產。

如果我運行bundle exec unicorn -c config/unicorn.rb -D -E development一切正常。

然而，bundle exec unicorn -c config/unicorn.rb -D -E production，將返回：

master failed to start, check stderr log for details

這裏的unicorn.stder.log文件：

I, [2012-06-04T17:31:54.497851 #10431] INFO -- : listening on addr=/tmp/unicorn-uspatriottactical.socket fd=5 
I, [2012-06-04T17:31:54.499222 #10431] INFO -- : Refreshing Gem list 
/var/rails/uspatriottactical/shared/bundle/ruby/1.9.1/gems/polyglot-0.3.3/lib/polyglot.rb:63:in `require': can't convert Pathname into String (TypeError) 
     from /var/rails/uspatriottactical/shared/bundle/ruby/1.9.1/gems/polyglot-0.3.3/lib/polyglot.rb:63:in `require' 
     from /var/rails/uspatriottactical/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:251:in `block in require' 
     from /var/rails/uspatriottactical/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:236:in `load_dependency' 
     from /var/rails/uspatriottactical/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:251:in `require' 
     from /var/rails/uspatriottactical/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:359:in `require_or_load' 
     from /var/rails/uspatriottactical/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:502:in `load_missing_constant' 
     from /var/rails/uspatriottactical/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:192:in `block in const_missing' 
     from /var/rails/uspatriottactical/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:190:in `each' 
     from /var/rails/uspatriottactical/shared/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:190:in `const_missing' 
     from /var/rails/uspatriottactical/shared/bundle/ruby/1.9.1/bundler/gems/spree_related_products-72cbbfc9ed31/lib/spree_related_products.rb:17:in `block in <class:Engine>' 
     from /var/rails/uspatriottactical/shared/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/initializable.rb:30:in `instance_exec' 
     from /var/rails/uspatriottactical/shared/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/initializable.rb:30:in `run' 
     from /var/rails/uspatriottactical/shared/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/initializable.rb:55:in `block in run_initializers' 
     from /var/rails/uspatriottactical/shared/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/initializable.rb:54:in `each' 
     from /var/rails/uspatriottactical/shared/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/initializable.rb:54:in `run_initializers' 
     from /var/rails/uspatriottactical/shared/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/application.rb:136:in `initialize!' 
     from /var/rails/uspatriottactical/shared/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/railtie/configurable.rb:30:in `method_missing' 
     from /var/rails/uspatriottactical/releases/20120604171150/config/environment.rb:5:in `<top (required)>' 
     from config.ru:4:in `require' 
     from config.ru:4:in `block in <main>' 
     from /var/rails/uspatriottactical/shared/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/builder.rb:51:in `instance_eval' 
     from /var/rails/uspatriottactical/shared/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/builder.rb:51:in `initialize' 
     from config.ru:1:in `new' 
     from config.ru:1:in `<main>' 
     from /var/rails/uspatriottactical/shared/bundle/ruby/1.9.1/gems/unicorn-4.3.1/lib/unicorn.rb:44:in `eval' 
     from /var/rails/uspatriottactical/shared/bundle/ruby/1.9.1/gems/unicorn-4.3.1/lib/unicorn.rb:44:in `block in builder' 
     from /var/rails/uspatriottactical/shared/bundle/ruby/1.9.1/gems/unicorn-4.3.1/lib/unicorn/http_server.rb:696:in `call' 
     from /var/rails/uspatriottactical/shared/bundle/ruby/1.9.1/gems/unicorn-4.3.1/lib/unicorn/http_server.rb:696:in `build_app!' 
     from /var/rails/uspatriottactical/shared/bundle/ruby/1.9.1/gems/unicorn-4.3.1/lib/unicorn/http_server.rb:136:in `start' 
     from /var/rails/uspatriottactical/shared/bundle/ruby/1.9.1/gems/unicorn-4.3.1/bin/unicorn:121:in `<top (required)>' 
     from /var/rails/uspatriottactical/shared/bundle/ruby/1.9.1/bin/unicorn:23:in `load' 
     from /var/rails/uspatriottactical/shared/bundle/ruby/1.9.1/bin/unicorn:23:in `<main>' 

因爲這似乎是一個寶石的問題，這是我的Gemfile：

source 'http://rubygems.org' 

gem 'active_shipping',     :git => 'git://github.com/Shopify/active_shipping.git' 
gem 'carrierwave' 
gem 'jquery-rails' 
gem 'rails', '~> 3.2.0' 
gem 'rmagick' 
gem 'spree',       :git => 'git://github.com/spree/spree', :branch => '1-1-stable' 
gem 'spree_active_shipping',   :git => 'git://github.com/spree/spree_active_shipping.git' 
gem 'spree_flexi_variants',    :git => 'git://github.com/jsqu99/spree_flexi_variants.git' 
gem 'spree_reviews',     :git => 'git://github.com/spree/spree_reviews.git' 
gem 'spree_related_products',   :git => 'git://github.com/spree/spree_related_products.git' 
gem 'spree_shipworks_api',    :path => 'spree_shipworks_api' 
gem 'spree_amazon_fps',     :path => 'spree_amazon_fps' 
# gem 'spree_variant_options',   :git => 'git://github.com/citrus/spree_variant_options.git' 
gem 'spree_videos',      :git => 'git://github.com/iloveitaly/Spree-Videos.git' 
gem 'spree_gateway',     :git => 'git://github.com/spree/spree_gateway.git' 
gem 'spree_paypal_express',    :git => 'git://github.com/spree/spree_paypal_express.git' 
gem 'remit',       :git => 'git://github.com/tylerhunt/remit.git' 
#gem 'remit',       :path => '../remit' 
gem 'unicorn' 

# temporary 
gem 'sqlite3' 
gem 'execjs' 
gem 'therubyracer' 


group :assets do 
    gem 'coffee-rails', '~> 3.2.0' 
    gem 'sass-rails', '~> 3.2.0' 
    gem 'uglifier', '>= 1.2.4' 
end 

group :console do 
    gem 'awesome_print',     :require => 'ap' 
    gem 'hirb-unicode' 
    gem 'wirb' 
end 

group :development, :test do 
    gem 'capybara' 
    gem 'factory_girl_rails' 
    gem 'faker' 
    gem 'mysql2' 
    gem 'pry' 
    gem 'rspec-rails' 
    gem 'sunspot_rails', '~> 1.3.1' 
    gem 'progress_bar', '0.4.0' 
    gem 'sunspot_solr' 
    gem "sunspot_with_kaminari", '~> 0.1' 
    gem 'sqlite3' 
    gem 'debugger' 
end 

group :development do 
# gem 'heroku' 
    gem 'pry-rails' 
end 

group :production do 

    gem 'capistrano' 
    gem 'rvm-capistrano' 


    gem 'mysql2' 

    gem 'sunspot_rails', '~> 1.3.1' 
    gem 'progress_bar', '0.4.0' 
    gem 'sunspot_solr' 
    gem "sunspot_with_kaminari", '~> 0.1' 
end 

# Used when running on Heroku 
# group :deployment do 
# gem 'foreman' 
# gem 'pg' 
# gem 'thin' 
# end 

group :test do 
    gem 'fakeweb' 
    # Pretty printed test output 
    gem 'turn', '~> 0.8.3',    :require => false 
    gem 'vcr' 
end 

編輯：這是我的unicorn.rb

# See http://unicorn.bogomips.org/Unicorn/Configurator.html for complete documentation. 

www_dir = "/var/rails/" 
app_name = "uspatriottactical" 

# Set environment to development unless something else is specified 
#env = ENV["RAILS_ENV"] || "production" 

# amount of unicorn workers to spin up 
worker_processes 2 

# Socket to bind to 
listen "/tmp/unicorn-#{app_name}.socket" 

preload_app true 

# restarts workers that hang for 30 seconds 
timeout 30 

pid "/tmp/unicorn.#{app_name}.pid" 



#if env == "production" 
    user 'app_user', 'app_user' # 'user', 'group' 

    working_directory "#{www_dir}#{app_name}/current" 
    shared_path = "#{www_dir}#{app_name}/shared" 

    stderr_path "#{shared_path}/log/unicorn.stderr.log" 
    stdout_path "#{shared_path}/log/unicorn.stdout.log" 
#end 

before_fork do |server, worker| 
    # the following is highly recomended for Rails + "preload_app true" 
    # as there's no need for the master process to hold a connection 
    if defined?(ActiveRecord::Base) 
    ActiveRecord::Base.connection.disconnect! 
    end 

    # 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. 
    # 
    # This enables 0 downtime deploys. 
    old_pid = "/var/run/unicorn-#{app_name}.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| 

    # Unicorn master loads the app then forks off workers - because of the way 
    # Unix forking works, we need to make sure we aren't using any of the parent's 
    # sockets, e.g. db connection (since "preload_app true") 
    if defined?(ActiveRecord::Base) 
    ActiveRecord::Base.establish_connection 
    end 

    # 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) 
end 

編輯：每請求/var/rails/uspatriottactical/shared/bundle/ruby/1.9.1/gems/polyglot-0.3.3/lib/polyglot.rb

我評論了行63

require 'pathname' 

module Polyglot 
    @registrations ||= {} # Guard against reloading 
    @loaded ||= {} 

    class PolyglotLoadError < LoadError; end 

    class NestedLoadError < LoadError 
    def initialize le 
     @le = le 
    end 
    def reraise 
     raise @le 
    end 
    end 

    def self.register(extension, klass) 
    extension = [extension] unless Array === extension 
    extension.each{|e| 
     @registrations[e] = klass 
    } 
    end 

    def self.find(file, *options, &block) 
    is_absolute = Pathname.new(file).absolute? 
    (is_absolute ? [""] : $:).each{|lib| 
     base = is_absolute ? "" : lib+File::SEPARATOR 
     # In Windows, repeated SEPARATOR chars have a special meaning, avoid adding them 
     matches = Dir["#{base}#{file}{,.#{@registrations.keys*',.'}}"] 
     # Revisit: Should we do more do if more than one candidate found? 
     $stderr.puts "Polyglot: found more than one candidate for #{file}: #{matches*", "}" if matches.size > 1 
     if path = matches[0] 
     return [ path, @registrations[path.gsub(/.*\./,'')]] 
     end 
    } 
    return nil 
    end 

    def self.load(*a, &b) 
    file = a[0].to_str 
    return if @loaded[file] # Check for $: changes or file time changes and reload? 
    begin 
     source_file, loader = Polyglot.find(file, *a[1..-1], &b) 
     if (loader) 
     begin 
      loader.load(source_file) 
      @loaded[file] = true 
     rescue LoadError => e 
      raise Polyglot::NestedLoadError.new(e) 
     end 
     else 
     raise PolyglotLoadError.new("Failed to load #{file} using extensions #{(@registrations.keys+["rb"]).sort*", "}") 
     end 
    end 
    end 
end 

module Kernel 
    alias polyglot_original_require require 

    def require(*a, &b) 
    polyglot_original_require(*a, &b) # <- line 63 
    rescue LoadError => load_error 
    begin 
     Polyglot.load(*a, &b) 
    rescue Polyglot::NestedLoadError => e 
     e.reraise 
    rescue LoadError 
     # Raise the original exception, possibly a MissingSourceFile with a path 
     raise load_error 
    end 
    end 
end 

Answer 1

升級到紅寶石1.9.3糾正了這個問題。

有關詳細信息，請參閱github.com/cjheath/polyglot/issues/2。

顯然，RVM安裝的ruby 1.9.1和1.9.2存在問題。