问题
This was working just the other day, but I just updated my code to the review server which runs Passenger 2.2.4 and my 2.3.4 rails app now can't boot on that box.
Passenger reports:
Passenger encountered the following error:
The application spawner server exited unexpectedly: Unexpected end-of-file detected.
Exception class:
PhusionPassenger::Railz::ApplicationSpawner::Error
Backtrace:
# File Line Location
0 /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/phusion_passenger/railz/application_spawner.rb 218 in `start'
1 /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/phusion_passenger/spawn_manager.rb 261 in `spawn_rails_application'
2 /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/phusion_passenger/abstract_server_collection.rb 126 in `lookup_or_add'
3 /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/phusion_passenger/spawn_manager.rb 255 in `spawn_rails_application'
4 /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/phusion_passenger/abstract_server_collection.rb 80 in `synchronize'
5 /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/phusion_passenger/abstract_server_collection.rb 79 in `synchronize'
6 /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/phusion_passenger/spawn_manager.rb 254 in `spawn_rails_application'
7 /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/phusion_passenger/spawn_manager.rb 153 in `spawn_application'
8 /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/phusion_passenger/spawn_manager.rb 286 in `handle_spawn_application'
9 /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/phusion_passenger/abstract_server.rb 351 in `__send__'
10 /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/phusion_passenger/abstract_server.rb 351 in `main_loop'
11 /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/lib/phusion_passenger/abstract_server.rb 195 in `start_synchronously'
12 /usr/lib/ruby/gems/1.8/gems/passenger-2.2.4/bin/passenger-spawn-server 61
Any ideas?
回答1:
Figured it out. I finally checked the main apache error log and discovered there was a problem with one of my gems (facebooker config).
To fix the facebooker issue, make sure there's an entry for your environment in config/facebooker.yml
I think passenger should at least give an option to see more of the stack trace that gets reported in apache's error log. Would have been more helpful.
回答2:
I got the same obscure error when I had forgotten to initialise the database. If so, try:
RAILS_ENV=production bundle exec rake db:setup
来源：https://stackoverflow.com/questions/1429708/passenger-error-the-application-spawner-server-exited-unexpectedly-unexpected