Errno::ENOENT (No such file or directory - /home/benheb/geocommons/geoiq/tmp/assets/maps/82.mutex):
  lib/file_mutex.rb:5:in `initialize'
  lib/file_mutex.rb:5:in `open'
  lib/file_mutex.rb:5:in `on_file'
  lib/external_asset_manager.rb:20:in `mutex'
  app/controllers/observers/maps_sweeper.rb:20:in `after_update'
  /usr/lib/ruby/gems/1.8/gems/pluginaweek-state_machine-0.7.6/lib/state_machine/integrations/active_record/observer.rb:32:in `send'
  /usr/lib/ruby/gems/1.8/gems/pluginaweek-state_machine-0.7.6/lib/state_machine/integrations/active_record/observer.rb:32:in `update'