Errno::EADDRINUSE when using :foreman => true

[cyrusstoller]

In my Guardfile I had the following

guard 'spork', :rspec_env => { 'RAILS_ENV' => 'test' }, :foreman => true do
  watch('config/application.rb')
  watch('config/environment.rb')
  watch('config/routes.rb')
  watch(%r{^config/environments/.+\.rb$})
  watch(%r{^config/initializers/.+\.rb$})
  watch('Gemfile')
  watch('Gemfile.lock')
  watch('spec/spec_helper.rb')
  watch(%r{^spec/factories/.+\.rb$})
  watch('test/test_helper.rb')
  watch(%r{^spec/support/.+\.rb$})
end

This was working fine, but when I tried to add a new route to my config/routes.rb I got the following error when Spork was reloading

Loading Spork.prefork block...
Rack::File headers parameter replaces cache_control after Rack 1.5.
Address already in use - bind(2) (Errno::EADDRINUSE)
/Users/cyrus/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/drb/drb.rb:861:in `initialize'
/Users/cyrus/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/drb/drb.rb:861:in `open'
/Users/cyrus/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/drb/drb.rb:861:in `open_server'
/Users/cyrus/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/drb/drb.rb:759:in `block in open_server'
/Users/cyrus/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/drb/drb.rb:757:in `each'
/Users/cyrus/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/drb/drb.rb:757:in `open_server'
/Users/cyrus/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/drb/drb.rb:1342:in `initialize'
/Users/cyrus/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/drb/drb.rb:1624:in `new'
/Users/cyrus/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/drb/drb.rb:1624:in `start_service'
/Users/cyrus/.rvm/gems/ruby-1.9.3-p125@h/gems/spork-0.9.2/lib/spork/server.rb:29:in `listen'
/Users/cyrus/.rvm/gems/ruby-1.9.3-p125@h/gems/spork-0.9.2/lib/spork/server.rb:20:in `run'
/Users/cyrus/.rvm/gems/ruby-1.9.3-p125@h/gems/spork-0.9.2/lib/spork/runner.rb:75:in `run'
/Users/cyrus/.rvm/gems/ruby-1.9.3-p125@h/gems/spork-0.9.2/lib/spork/runner.rb:10:in `run'
/Users/cyrus/.rvm/gems/ruby-1.9.3-p125@h/gems/spork-0.9.2/bin/spork:10:in `<top (required)>'
/Users/cyrus/.rvm/gems/ruby-1.9.3-p125@h/bin/spork:23:in `load'
/Users/cyrus/.rvm/gems/ruby-1.9.3-p125@h/bin/spork:23:in `<main>'

I was able to get normal behavior again when I removed the :foreman => true

I ran Guard in debug mode and saw that it was in fact killing the old PID.

RIght now I'm not writing any tests that depend on vars in .env but I might later.

Thanks for this awesome gem.

[thibaudgg]

Mmm maybe that the PID killed is the Foreman process and that doesn't kill the Spork process launched by it. Make sense?

[cyrusstoller]

I tried running spork in debug mode and it looked like the right spork PIDs were getting killed. How would you check the foreman PIDs?

[thibaudgg]

Mmm so maybe Foreman relaunch it automatically, I don't use Foreman often sorry.

To get Foreman pid try: ps aux | awk '/foreman/&&!/awk/{print $2;}

[thibaudgg]

Still an issue?

[cyrusstoller]

Thanks for working on this. The issue has changed a little.

But if I keep :foreman => true I still get the following error message

Rack::File headers parameter replaces cache_control after Rack 1.5.
Address already in use - bind(2) (Errno::EADDRINUSE)
/Users/cyrusstoller/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/drb/drb.rb:861:in `initialize'
/Users/cyrusstoller/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/drb/drb.rb:861:in `open'
/Users/cyrusstoller/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/drb/drb.rb:861:in `open_server'
/Users/cyrusstoller/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/drb/drb.rb:759:in `block in open_server'
/Users/cyrusstoller/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/drb/drb.rb:757:in `each'
/Users/cyrusstoller/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/drb/drb.rb:757:in `open_server'
/Users/cyrusstoller/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/drb/drb.rb:1342:in `initialize'
/Users/cyrusstoller/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/drb/drb.rb:1624:in `new'
/Users/cyrusstoller/.rvm/rubies/ruby-1.9.3-p125/lib/ruby/1.9.1/drb/drb.rb:1624:in `start_service'
/Users/cyrusstoller/.rvm/gems/ruby-1.9.3-p125@hazelnut/gems/spork-0.9.2/lib/spork/server.rb:29:in `listen'
/Users/cyrusstoller/.rvm/gems/ruby-1.9.3-p125@hazelnut/gems/spork-0.9.2/lib/spork/server.rb:20:in `run'
/Users/cyrusstoller/.rvm/gems/ruby-1.9.3-p125@hazelnut/gems/spork-0.9.2/lib/spork/runner.rb:75:in `run'
/Users/cyrusstoller/.rvm/gems/ruby-1.9.3-p125@hazelnut/gems/spork-0.9.2/lib/spork/runner.rb:10:in `run'
/Users/cyrusstoller/.rvm/gems/ruby-1.9.3-p125@hazelnut/gems/spork-0.9.2/bin/spork:10:in `<top (required)>'
/Users/cyrusstoller/.rvm/gems/ruby-1.9.3-p125@hazelnut/bin/spork:23:in `load'
/Users/cyrusstoller/.rvm/gems/ruby-1.9.3-p125@hazelnut/bin/spork:23:in `<main>'
Running tests with args ["--color"]...
Done.

Then the tests proceed anyway, but the environment hasn't been reloaded. I just did a simple test of changing the routes file to include a unreasonable route and my tests still passed.

[thibaudgg]

Ok, too bad. I'm sorry but I don't use Spork anymore so I'm not sure how to fix that. Maybe we should remove the foreman feature.

[cyrusstoller]

What are you using instead of Spork?

[thibaudgg]

I mostly test my code in isolation without loading Rails. More info at: http://silkandspinach.net/2011/08/08/why-i-dont-use-spork/

[cyrusstoller]

Interesting. I'm always interested in learning how other people test. Most of my service classes I test in isolation. I guess the main reason I load the rails env is for integration tests and testing controllers.

[thibaudgg]

I personally don't test controllers that much, I mostly load rails env for persistence (model) test & integration. So having to wait some seconds for them isn't worth the setup/maintenance of Spork or Zeus.