ActiveSupport.remove_constant - Exception NameError

Question

私はGeoRuby（1.3.4）とspatial_adapter（1.1.2）の宝石を使用しているので、私はMySQLの空間拡張を使用しているRails（2.3.4）アプリケーションで作業しています。

私はしかしGeoRubyのPointオブジェクトを使用して開始して以来activesupportの要求を処理した後に、定数を削除しようとしたとき、私はトラブルに実行している：

[ pid=18105 thr=67398490 file=utils.rb:176 time=2010-12-07 15:00:38.894 ]: *** Exception NameError in application (cannot remove Object::Geometry) (process 18105, thread #<Thread:0x808d6b4>): 
from /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:603:in `remove_const' 
from /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:603:in `remove_constant' 
from /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:603:in `instance_eval' 
from /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:603:in `remove_constant' 
from /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:450:in `remove_unloadable_constants!' 
from /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:450:in `each' 
from /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:450:in `remove_unloadable_constants!' 
from /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:236:in `clear' 
from /opt/local/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action_controller/dispatcher.rb:64:in `cleanup_application' 
from /opt/local/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action_controller/reloader.rb:17:in `close' 
from /opt/local/lib/ruby/gems/1.8/gems/passenger-3.0.0/lib/phusion_passenger/rack/request_handler.rb:136:in `process_request' 
from /opt/local/lib/ruby/gems/1.8/gems/passenger-3.0.0/lib/phusion_passenger/abstract_request_handler.rb:513:in `accept_and_process_next_request' 
from /opt/local/lib/ruby/gems/1.8/gems/passenger-3.0.0/lib/phusion_passenger/abstract_request_handler.rb:274:in `main_loop' 
from /opt/local/lib/ruby/gems/1.8/gems/passenger-3.0.0/lib/phusion_passenger/classic_rails/application_spawner.rb:321:in `start_request_handler' 
from /opt/local/lib/ruby/gems/1.8/gems/passenger-3.0.0/lib/phusion_passenger/classic_rails/application_spawner.rb:275:in `send' 
from /opt/local/lib/ruby/gems/1.8/gems/passenger-3.0.0/lib/phusion_passenger/classic_rails/application_spawner.rb:275:in `handle_spawn_application' 
from /opt/local/lib/ruby/gems/1.8/gems/passenger-3.0.0/lib/phusion_passenger/utils.rb:479:in `safe_fork' 
from /opt/local/lib/ruby/gems/1.8/gems/passenger-3.0.0/lib/phusion_passenger/classic_rails/application_spawner.rb:270:in `handle_spawn_application' 
from /opt/local/lib/ruby/gems/1.8/gems/passenger-3.0.0/lib/phusion_passenger/abstract_server.rb:357:in `__send__' 
from /opt/local/lib/ruby/gems/1.8/gems/passenger-3.0.0/lib/phusion_passenger/abstract_server.rb:357:in `server_main_loop' 
from /opt/local/lib/ruby/gems/1.8/gems/passenger-3.0.0/lib/phusion_passenger/abstract_server.rb:206:in `start_synchronously' 
from /opt/local/lib/ruby/gems/1.8/gems/passenger-3.0.0/lib/phusion_passenger/abstract_server.rb:180:in `start' 
from /opt/local/lib/ruby/gems/1.8/gems/passenger-3.0.0/lib/phusion_passenger/classic_rails/application_spawner.rb:149:in `start' 
from /opt/local/lib/ruby/gems/1.8/gems/passenger-3.0.0/lib/phusion_passenger/spawn_manager.rb:219:in `spawn_rails_application' 
from /opt/local/lib/ruby/gems/1.8/gems/passenger-3.0.0/lib/phusion_passenger/abstract_server_collection.rb:132:in `lookup_or_add' 
from /opt/local/lib/ruby/gems/1.8/gems/passenger-3.0.0/lib/phusion_passenger/spawn_manager.rb:214:in `spawn_rails_application' 
from /opt/local/lib/ruby/gems/1.8/gems/passenger-3.0.0/lib/phusion_passenger/abstract_server_collection.rb:82:in `synchronize' 
from /opt/local/lib/ruby/gems/1.8/gems/passenger-3.0.0/lib/phusion_passenger/abstract_server_collection.rb:79:in `synchronize' 
from /opt/local/lib/ruby/gems/1.8/gems/passenger-3.0.0/lib/phusion_passenger/spawn_manager.rb:213:in `spawn_rails_application' 
from /opt/local/lib/ruby/gems/1.8/gems/passenger-3.0.0/lib/phusion_passenger/spawn_manager.rb:132:in `spawn_application' 
from /opt/local/lib/ruby/gems/1.8/gems/passenger-3.0.0/lib/phusion_passenger/spawn_manager.rb:275:in `handle_spawn_application' 
from /opt/local/lib/ruby/gems/1.8/gems/passenger-3.0.0/lib/phusion_passenger/abstract_server.rb:357:in `__send__' 
from /opt/local/lib/ruby/gems/1.8/gems/passenger-3.0.0/lib/phusion_passenger/abstract_server.rb:357:in `server_main_loop' 
from /opt/local/lib/ruby/gems/1.8/gems/passenger-3.0.0/lib/phusion_passenger/abstract_server.rb:206:in `start_synchronously' 
from /opt/local/lib/ruby/gems/1.8/gems/passenger-3.0.0/helper-scripts/passenger-spawn-server:99 

結局、これはApacheがSIGTERMを受信する原因となっているが（おそらくそれはスレッドや何かをexhausingしているので）、サーバは時折リクエストに応答できません。

「Object :: Geometry」は奇妙なことですが、GeoRuby :: SimpleFeatures :: Geometryを読み込むことを期待しています（GeoRuby :: SimpleFeatures :: Pointを使用しています。 Geometryのサブクラス）。

また、ActiveSupport 3.0.0ではremove_constantのコードが、私が使用しているバージョンとどのように違うのか気づきました。このアップデートはこの問題を修正しますか？もしそうなら、それはRails 3.0へのアップデートを必要としますか？

Answer 1

私はactive_support/dependencies.rb内の違反コード（remove_constantメソッド本体）をbegin-rescue-end句で囲んでダンプテープを修正し、例外を無視しました。これに否定的な副作用があるかどうかはわかりませんが、少なくともApacheが今や毎回再起動することはありません。