Redmine

Is Redmine supposed to report its problems someplace?

I inherited a Redmine server, and it recently quit working. The error doesn't hint at any configuration file or what might have broken. The files all seem to be lib files which are unlikely to have been altered during installation, much less something which broke without being touched.

I found mention that "Shifting failed" might be related to log files, but I don't see any log configuration in environment.rb. I tried adding a log limit definition, but the error remains.

Error during failsafe response: Shifting failed. closed stream
[ pid=10657 thr=-609445668 file=utils.rb:176 time=2011-05-06 12:43:06.915 ]: *** Exception NoMethodError in application (undefined method `each' for nil:NilClass) (process 10657, thread #<Thread:0xb75931b8>):
from /usr/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passenger/rack/request_handler.rb:106:in `process_request'
from /usr/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passenger/abstract_request_handler.rb:513:in `accept_and_process_next_request'
from /usr/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passenger/abstract_request_handler.rb:274:in `main_loop'
from /usr/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passenger/classic_rails/application_spawner.rb:321:in `start_request_handler'
from /usr/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passenger/classic_rails/application_spawner.rb:275:in `send'
from /usr/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passenger/classic_rails/application_spawner.rb:275:in `handle_spawn_application'
from /usr/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passenger/utils.rb:479:in `safe_fork'
from /usr/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passenger/classic_rails/application_spawner.rb:270:in `handle_spawn_application'
from /usr/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passenger/abstract_server.rb:357:in `__send__'
from /usr/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passenger/abstract_server.rb:357:in `server_main_loop'
from /usr/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passenger/abstract_server.rb:206:in `start_synchronously'
from /usr/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passenger/abstract_server.rb:180:in `start'
from /usr/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passenger/classic_rails/application_spawner.rb:149:in `start'
from /usr/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passenger/spawn_manager.rb:219:in `spawn_rails_application'
from /usr/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passenger/abstract_server_collection.rb:132:in `lookup_or_add'
from /usr/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passenger/spawn_manager.rb:214:in `spawn_rails_application'
from /usr/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passenger/abstract_server_collection.rb:82:in `synchronize'
from /usr/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passenger/abstract_server_collection.rb:79:in `synchronize'
from /usr/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passenger/spawn_manager.rb:213:in `spawn_rails_application'
from /usr/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passenger/spawn_manager.rb:132:in `spawn_application'
from /usr/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passenger/spawn_manager.rb:275:in `handle_spawn_application'
from /usr/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passenger/abstract_server.rb:357:in `__send__'
from /usr/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passenger/abstract_server.rb:357:in `server_main_loop'
from /usr/lib/ruby/gems/1.8/gems/passenger-3.0.2/lib/phusion_passenger/abstract_server.rb:206:in `start_synchronously'
from /usr/lib/ruby/gems/1.8/gems/passenger-3.0.2/helper-scripts/passenger-spawn-server:99
[ pid=5176 thr=3066758944 file=ext/apache2/Hooks.cpp:820 time=2011-05-06 12:43:06.940 ]: The backend application (process 10657) did not send a valid HTTP response; instead, it sent nothing at all. It is possible that it has crashed; please check whether there are crashing bugs in this application.