Thin Thin → 1.1

Comments and changes to this ticket

• You flagged this item as spam.
  

  MJ January 16th, 2009 @ 03:24 PM

  Is there any additional information I can supply to help?

  • sinatra (0.3.3)
  • thin (1.0.0)
  • rack (0.4.0)
  • eventmachine (0.12.2)

  Any suggestions for other things to try?

  I switched from RestClient to Curb (curl lib) and still have the same issue:

  
  Curl::Err::HostResolutionError - Couldn't resolve host name:
  

  It seems like running this Sinatra app under Thin causes some issues resolving host names when making outbound requests.

  I really want to use Thin because I can then monitor it's pid file with god to make sure the app stays up.

• 

  macournoyer January 16th, 2009 @ 03:32 PM

  • Milestone changed from “Future” to “1.1”
  • State changed from “new” to “open”

  You get this error when using RestClient to access another service or to hit the Thin server?. Can you provide more code to reproduce?

• You flagged this item as spam.
  

  MJ January 21st, 2009 @ 04:50 PM

  Currently I'm unable to get my Thin server running to reproduce the error.

  I filed a ticket w/Sinatra however it's tagged as 'thin error'

  http://sinatra.lighthouseapp.com...

  I uploaded the code to a public git repo so anyone could give it a whirl: http://github.com/mjfreshyfresh/...

  Currently I'm unable to start the Thin server, it appears to be starting correctly, then it starts again with each request.

  The start command I'm using is:

  
  thin -C ./config.yml
  

  Could you grab my code and confirm that I'm doing this correctly.

  The gems I'm using are: * thin (1.0.0) * rack (0.9.1) * sinatra (0.9.0.2)

  The full stack trace is:

  
  !! Unexpected error while processing request: undefined method `run' for main:Object
  undefined method `run' for main:Object
  	/Users/mjfreshyfresh/projects/scg/face_mask/simple_app/config.ru:7
  	/usr/local/lib/ruby/gems/1.8/gems/sinatra-0.9.0.2/lib/sinatra/base.rb:812:in `load'
  	/usr/local/lib/ruby/gems/1.8/gems/sinatra-0.9.0.2/lib/sinatra/base.rb:812:in `reload!'
  	/usr/local/lib/ruby/gems/1.8/gems/sinatra-0.9.0.2/lib/sinatra/base.rb:804:in `call'
  	/usr/local/lib/ruby/gems/1.8/gems/thin-1.0.0/lib/thin/connection.rb:63:in `pre_process'
  	/usr/local/lib/ruby/gems/1.8/gems/thin-1.0.0/lib/thin/connection.rb:54:in `process'
  	/usr/local/lib/ruby/gems/1.8/gems/thin-1.0.0/lib/thin/connection.rb:39:in `receive_data'
  	/usr/local/lib/ruby/gems/1.8/gems/eventmachine-0.12.2/lib/eventmachine.rb:231:in `run_machine'
  	/usr/local/lib/ruby/gems/1.8/gems/eventmachine-0.12.2/lib/eventmachine.rb:231:in `run'
  	/usr/local/lib/ruby/gems/1.8/gems/thin-1.0.0/lib/thin/backends/base.rb:57:in `start'
  	/usr/local/lib/ruby/gems/1.8/gems/thin-1.0.0/lib/thin/server.rb:150:in `start'
  	/usr/local/lib/ruby/gems/1.8/gems/thin-1.0.0/lib/thin/controllers/controller.rb:80:in `start'
  	/usr/local/lib/ruby/gems/1.8/gems/thin-1.0.0/lib/thin/runner.rb:173:in `send'
  	/usr/local/lib/ruby/gems/1.8/gems/thin-1.0.0/lib/thin/runner.rb:173:in `run_command'
  	/usr/local/lib/ruby/gems/1.8/gems/thin-1.0.0/lib/thin/runner.rb:139:in `run!'
  	/usr/local/lib/ruby/gems/1.8/gems/thin-1.0.0/bin/thin:6
  	/usr/local/bin/thin:19:in `load'
  	/usr/local/bin/thin:19
  
  

• 

  macournoyer January 21st, 2009 @ 05:07 PM

  It seems to be a problem w/ how Sinatra reloads the config file.

  It doesn't work w/ rackup either:

  
  rackup config.ru
  

  same error, which uses mongrel.

• You flagged this item as spam.
  

  MJ January 21st, 2009 @ 05:27 PM

  Problem solved need to include a line to 'disable :reload'

  Thanks to atduskgreg and Blake for the support.

  
  require 'rubygems'
  require 'sinatra'
  require 'rest_client'
  
  set :run, false
  disable :reload
  
  get '/' do
    result = RestClient.get("http://google.com")
    "Chars on googles page: #{result.size}"
  end
  
  

• 

  macournoyer January 21st, 2009 @ 08:01 PM

  • Tag set to “sinatra”
  • State changed from “open” to “invalid”

  cool!

• You flagged this item as spam.
  

  MJ January 27th, 2009 @ 06:52 PM

  I just wanted to follow up with some recent information.

  This problem resurfaced again with the exception:

  /usr/lib/ruby/1.8/net/http.rb:560:in initialize': getaddrinfo: Name or service not known (SocketError)

  from /usr/lib/ruby/1.8/net/http.rb:560:in `open'
  from /usr/lib/ruby/1.8/net/http.rb:560:in `connect'
  from /usr/lib/ruby/1.8/timeout.rb:48:in `timeout'
  from /usr/lib/ruby/1.8/timeout.rb:76:in `timeout'
  from /usr/lib/ruby/1.8/net/http.rb:560:in `connect'
  from /usr/lib/ruby/1.8/net/http.rb:553:in `do_start'
  from /usr/lib/ruby/1.8/net/http.rb:542:in `start'
  
  

  Switching from a domain name to an IP address produced a different exception:

  
  Errno::EMFILE - Too many open files - socket(2):
  	 /usr/lib/ruby/1.8/net/http.rb:560:in `initialize'
  	 /usr/lib/ruby/1.8/net/http.rb:560:in `open'
  	 /usr/lib/ruby/1.8/net/http.rb:560:in `connect'
  	 /usr/lib/ruby/1.8/timeout.rb:48:in `timeout'
  	 /usr/lib/ruby/1.8/timeout.rb:76:in `timeout'
  	 /usr/lib/ruby/1.8/net/http.rb:560:in `connect'
  	 /usr/lib/ruby/1.8/net/http.rb:553:in `do_start'
  	 /usr/lib/ruby/1.8/net/http.rb:542:in `start'
  

  To correct this issue we raised the max_conns in the config.yml to

  
  max_conns: 1024
  max_persistent_conns: 512
  

  And this seemed to solve the problem...

• 

  macournoyer January 27th, 2009 @ 08:07 PM

  Do you really have more then 512 open file at the same time? That's a lot. Maybe your connection are not being closed properly.

  You can see the open files for a process w/

  
  lsof -p <pid>