什麼可能導致這個軌道ioerror封閉流？

Question

我有一個rails應用程序，運行在開發模式（與sqlite數據庫）。該應用程序的目的是允許用戶通過java客戶端上傳文件。

如果用戶想要上傳一個文件夾，它裏面的所有文件將被遞歸上傳。如果用戶想要上傳文件，該文件將正常上傳。

下面是我收到的錯誤：

IOError 

    in UploadedFilesController#new 

closed stream 

這裏是應用程序跟蹤：

/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 

這裏是框架跟蹤：

/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 

下面是完整的跟蹤：

/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 

我不知道爲什麼會發生這種情況......在出現此錯誤之前，客戶端會上傳大約15-30個文件（從文件夾，通過java客戶端）。我正在運行Rails 2.0.2。難道我在使用sqlite作爲數據庫的開發模式下運行會導致這種情況？任何幫助將不勝感激 ！

謝謝你們！

Answer 1

我想我已經弄明白了，至少我認爲我是這樣做的（客戶端只是不停地上傳，現在沒有錯誤）。 從上傳的文件中讀取數據後，您還應該關閉它。誰曾想到？ ：P

Answer 2

我們遇到了與Rails應用程序相同的問題，雖然簡單地關閉文件對象對我們來說不起作用（我們使用Paperclip並且它關閉了文件）。我開發了一個Monkeypatch，它已經爲我們修復了它，並且我們用作Rails初始化器。

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