I have a working Rails application that allows users to upload files in a couple of places. I recently converted from doing my development on a Linux box to OS X 10.5 and also upgraded from Rails 1.1.6 to Rails 2.1. I thought everything was working fine, but I just discovered that the app crashes whenever I try to upload a file on the OS X development system (it still works fine in production on Linux.) Both systems are using Apache 2.x and are running mod_fcgid for fastCGI.
When I try to upload a file on the OS X version I get the following in the log: /!\ FAILSAFE /!\ Wed Jun 11 17:33:03 -0700 2008 Status: 500 Internal Server Error protocol error /Library/Ruby/Gems/1.8/gems/actionpack-2.1.0/lib/action_controller/ request.r b:573:in `read' /Library/Ruby/Gems/1.8/gems/actionpack-2.1.0/lib/action_controller/ request.r b:573:in `read_multipart' /Library/Ruby/Gems/1.8/gems/actionpack-2.1.0/lib/action_controller/ request.r b:547:in `loop' /Library/Ruby/Gems/1.8/gems/actionpack-2.1.0/lib/action_controller/ request.r b:547:in `read_multipart' /Library/Ruby/Gems/1.8/gems/actionpack-2.1.0/lib/action_controller/ request.r b:470:in `parse_multipart_form_parameters' /Library/Ruby/Gems/1.8/gems/actionpack-2.1.0/lib/action_controller/ request.r b:400:in `parse_formatted_request_parameters' /Library/Ruby/Gems/1.8/gems/actionpack-2.1.0/lib/action_controller/ cgi_proce ss.rb:80:in `request_parameters' /Library/Ruby/Gems/1.8/gems/actionpack-2.1.0/lib/action_controller/ request.r b:304:in `parameters' /Library/Ruby/Gems/1.8/gems/actionpack-2.1.0/lib/action_controller/ request.r b:22:in `request_method' /Library/Ruby/Gems/1.8/gems/actionpack-2.1.0/lib/action_controller/ request.r b:35:in `method' /Library/Ruby/Gems/1.8/gems/actionpack-2.1.0/lib/action_controller/ routing/r oute_set.rb:431:in `extract_request_environment' /Library/Ruby/Gems/1.8/gems/actionpack-2.1.0/lib/action_controller/ routing/r oute_set.rb:384:in `recognize' /Library/Ruby/Gems/1.8/gems/actionpack-2.1.0/lib/action_controller/ dispatche r.rb:148:in `handle_request' /Library/Ruby/Gems/1.8/gems/actionpack-2.1.0/lib/action_controller/ dispatche r.rb:107:in `dispatch' /Library/Ruby/Gems/1.8/gems/actionpack-2.1.0/lib/action_controller/ dispatche r.rb:104:in `synchronize' /Library/Ruby/Gems/1.8/gems/actionpack-2.1.0/lib/action_controller/ dispatche r.rb:104:in `dispatch' /Library/Ruby/Gems/1.8/gems/actionpack-2.1.0/lib/action_controller/ dispatche r.rb:120:in `dispatch_cgi' /Library/Ruby/Gems/1.8/gems/actionpack-2.1.0/lib/action_controller/ dispatche r.rb:35:in `dispatch' /Library/Ruby/Gems/1.8/gems/rails-2.1.0/lib/fcgi_handler.rb:103:in `process_ request' /Library/Ruby/Gems/1.8/gems/rails-2.1.0/lib/fcgi_handler.rb:153:in `with_sig nal_handler' /Library/Ruby/Gems/1.8/gems/rails-2.1.0/lib/fcgi_handler.rb:101:in `process_ request' /Library/Ruby/Gems/1.8/gems/rails-2.1.0/lib/fcgi_handler.rb:78:in `process_e ach_request' /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ ruby/gems/1.8 /gems/fcgi-0.8.7/lib/fcgi.rb:612:in `each_cgi' /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ ruby/gems/1.8 /gems/fcgi-0.8.7/lib/fcgi.rb:609:in `each' /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ ruby/gems/1.8 /gems/fcgi-0.8.7/lib/fcgi.rb:609:in `each_cgi' /Library/Ruby/Gems/1.8/gems/rails-2.1.0/lib/fcgi_handler.rb:77:in `process_e ach_request' /Library/Ruby/Gems/1.8/gems/rails-2.1.0/lib/fcgi_handler.rb:76:in `catch' /Library/Ruby/Gems/1.8/gems/rails-2.1.0/lib/fcgi_handler.rb:76:in `process_e ach_request' /Library/Ruby/Gems/1.8/gems/rails-2.1.0/lib/fcgi_handler.rb:50:in `process!' /Library/Ruby/Gems/1.8/gems/rails-2.1.0/lib/fcgi_handler.rb:24:in `process!' /Users/tsanders/code/DFDialogDatabase/public/dispatch.fcgi:24
In fastcgi.crash.log I get the following: [11/Jun/2008:17:33:07 :: 16969] asked to stop immediately [11/Jun/2008:17:33:07 :: 16969] stopping after explicit exit
And the apache error_log shows: [Wed Jun 11 17:33:03 2008] [warn] (35)Resource temporarily unavailable: mod_fcgid: write data to fastcgi server error [Wed Jun 11 17:33:13 2008] [notice] mod_fcgid: process /Users/tsanders/ code/DFDialogDatabase/public/dispatch.fcgi(16969) exit(communication error), terminated by calling exit(), return code: 0
As you can see this crashes before even getting to my controller code, apparently while trying to parse the request passed in. My guess is that there's some sort permission problem with creating the temporary file to pass in params, but that's just a guess. I'm hoping somebody out there who's more familiar with actionpack can tell me more. I don't know that it's related to being on OS X particularly, but like I said the exact same code and view works on a linux box, so it seems the most likely culprit.
