什么可能导致这个轨道ioerror封闭流？

Question

我有一个rails应用程序，运行在开发模式（与sqlite数据库）。该应用程序的目的是允许用户通过java客户端上传文件。

如果用户想要上传一个文件夹，它里面的所有文件将被递归上传。如果用户想要上传文件，该文件将正常上传。

下面是我收到的错误：

IOError 

    in UploadedFilesController#new 

closed stream 

这里是应用程序跟踪：

/usr/lib/ruby/1.8/tempfile.rb:167:in `close' 
/usr/lib/ruby/1.8/tempfile.rb:167:in `callback' 
/var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/vendor/builder-2.1.2/blankslate.rb:85:in `call' 
/var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/vendor/builder-2.1.2/blankslate.rb:85:in `method_added' 
app/controllers/uploaded_files_controller.rb:114 
/var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:203:in `load_without_new_constant_marking' 
/var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:203:in `load_file' 
/var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:342:in `new_constants_in' 
/var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:202:in `load_file' 
/var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:94:in `require_or_load' 
/var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:248:in `load_missing_constant' 
/var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:453:in `const_missing' 
/var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:465:in `const_missing' 
/var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/inflector.rb:257:in `constantize' 
/var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/core_ext/string/inflections.rb:148:in `constantize' 
/var/lib/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/routing.rb:1426:in `recognize' 
/var/lib/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:78:in `service' 
/var/lib/gems/1.8/gems/rails-2.0.2/lib/commands/servers/webrick.rb:66 
/var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:496:in `require' 
/var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:342:in `new_constants_in' 
/var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:496:in `require' 
/var/lib/gems/1.8/gems/rails-2.0.2/lib/commands/server.rb:39 

这里是框架跟踪：

/usr/lib/ruby/1.8/tempfile.rb:167:in `close' 
/usr/lib/ruby/1.8/tempfile.rb:167:in `callback' 
/var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/vendor/builder-2.1.2/blankslate.rb:85:in `call' 
/var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/vendor/builder-2.1.2/blankslate.rb:85:in `method_added' 
/var/lib/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:170:in `handle_request' 
/var/lib/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:115:in `dispatch' 
/var/lib/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:126:in `dispatch_cgi' 
/var/lib/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:9:in `dispatch' 
/var/lib/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:112:in `handle_dispatch' 
/usr/lib/ruby/1.8/webrick/httpserver.rb:104:in `service' 
/usr/lib/ruby/1.8/webrick/httpserver.rb:65:in `run' 
/usr/lib/ruby/1.8/webrick/server.rb:173:in `start_thread' 
/usr/lib/ruby/1.8/webrick/server.rb:162:in `start' 
/usr/lib/ruby/1.8/webrick/server.rb:162:in `start_thread' 
/usr/lib/ruby/1.8/webrick/server.rb:95:in `start' 
/usr/lib/ruby/1.8/webrick/server.rb:92:in `each' 
/usr/lib/ruby/1.8/webrick/server.rb:92:in `start' 
/usr/lib/ruby/1.8/webrick/server.rb:23:in `start' 
/usr/lib/ruby/1.8/webrick/server.rb:82:in `start' 
/var/lib/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:62:in `dispatch' 
/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require' 
/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `require' 
/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require' 
/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `require' 
script/server:3 

下面是完整的跟踪：

/usr/lib/ruby/1.8/tempfile.rb:167:in `close' 
/usr/lib/ruby/1.8/tempfile.rb:167:in `callback' 
/var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/vendor/builder-2.1.2/blankslate.rb:85:in `call' 
/var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/vendor/builder-2.1.2/blankslate.rb:85:in `method_added' 
app/controllers/uploaded_files_controller.rb:114 
/var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:203:in `load_without_new_constant_marking' 
/var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:203:in `load_file' 
/var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:342:in `new_constants_in' 
/var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:202:in `load_file' 
/var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:94:in `require_or_load' 
/var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:248:in `load_missing_constant' 
/var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:453:in `const_missing' 
/var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:465:in `const_missing' 
/var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/inflector.rb:257:in `constantize' 
/var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/core_ext/string/inflections.rb:148:in `constantize' 
/var/lib/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/routing.rb:1426:in `recognize' 
/var/lib/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:170:in `handle_request' 
/var/lib/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:115:in `dispatch' 
/var/lib/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:126:in `dispatch_cgi' 
/var/lib/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:9:in `dispatch' 
/var/lib/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:112:in `handle_dispatch' 
/var/lib/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:78:in `service' 
/usr/lib/ruby/1.8/webrick/httpserver.rb:104:in `service' 
/usr/lib/ruby/1.8/webrick/httpserver.rb:65:in `run' 
/usr/lib/ruby/1.8/webrick/server.rb:173:in `start_thread' 
/usr/lib/ruby/1.8/webrick/server.rb:162:in `start' 
/usr/lib/ruby/1.8/webrick/server.rb:162:in `start_thread' 
/usr/lib/ruby/1.8/webrick/server.rb:95:in `start' 
/usr/lib/ruby/1.8/webrick/server.rb:92:in `each' 
/usr/lib/ruby/1.8/webrick/server.rb:92:in `start' 
/usr/lib/ruby/1.8/webrick/server.rb:23:in `start' 
/usr/lib/ruby/1.8/webrick/server.rb:82:in `start' 
/var/lib/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:62:in `dispatch' 
/var/lib/gems/1.8/gems/rails-2.0.2/lib/commands/servers/webrick.rb:66 
/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require' 
/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `require' 
/var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:496:in `require' 
/var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:342:in `new_constants_in' 
/var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:496:in `require' 
/var/lib/gems/1.8/gems/rails-2.0.2/lib/commands/server.rb:39 
/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require' 
/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `require' 
script/server:3 

我不知道为什么会发生这种情况......在出现此错误之前，客户端会上传大约15-30个文件（从文件夹，通过java客户端）。我正在运行Rails 2.0.2。难道我在使用sqlite作为数据库的开发模式下运行会导致这种情况？任何帮助将不胜感激 ！

谢谢你们！

Answer 1

我想我已经弄明白了，至少我认为我是这样做的（客户端只是不停地上传，现在没有错误）。 从上传的文件中读取数据后，您还应该关闭它。谁曾想到？ ：P

Answer 2

我们遇到了与Rails应用程序相同的问题，虽然简单地关闭文件对象对我们来说不起作用（我们使用Paperclip并且它关闭了文件）。我开发了一个Monkeypatch，它已经为我们修复了它，并且我们用作Rails初始化器。

你可以从http://github.com/jwinky/ruby_tempfile_ioerror