Sysadmin Setup question for Unicorn

Sysadmin Setup question for Unicorn

[huet bartels]

Dear List,

I am very new to ruby and this list.

I am trying to setup unicorn to run on ubuntu 8.10.  When I try to run
unicorn I am getting the following error.

with the following command I get the following error.  Is this because I
dont have a ruby rails app installed yet?

unicorn@install01:/app/unicorn/config$ unicorn_rails -c config.ru 
I, [2009-11-03T13:05:47.609036 #30824]  INFO -- : unlinking existing
socket=/app/unicorn/tmp/sockets/unicorn.sock
I, [2009-11-03T13:05:47.609458 #30824]  INFO -- : listening on
addr=/app/unicorn/tmp/sockets/unicorn.sock fd=3
I, [2009-11-03T13:05:47.609541 #30824]  INFO -- : Refreshing Gem list
/app/ruby/bin/unicorn_rails must be run inside RAILS_ROOT: #<LoadError:
no such file to load -- config/boot>



The other error i get is when I run unicorn with the command line.

unicorn@install01:/app/unicorn/config$ unicorn -c config.ru
{:daemonize=>false,
 :unicorn_options=>
  {:listeners=>[], :config_file=>"/app/unicorn/config/config.ru"},
 :app=>

#<Proc:0xb7bf2a68@/app/ruby.1.8.7-p174/lib/ruby/gems/1.8/gems/unicorn-0.93.4/bin/unicorn:123>}
I, [2009-11-03T13:03:53.555204 #30820]  INFO -- : unlinking existing
socket=/app/unicorn/tmp/sockets/unicorn.sock
I, [2009-11-03T13:03:53.555538 #30820]  INFO -- : listening on
addr=/app/unicorn/tmp/sockets/unicorn.sock fd=3
I, [2009-11-03T13:03:53.555596 #30820]  INFO -- : Refreshing Gem list
Exception `NoMethodError' at config.ru:6 - undefined method
`worker_processes' for #<Rack::Builder:0xb7a107b8 @ins=[]>
Exception `NoMethodError'
at /app/ruby.1.8.7-p174/lib/ruby/gems/1.8/gems/unicorn-0.93.4/bin/unicorn:130 - undefined method `worker_processes' for #<Rack::Builder:0xb7a107b8 @ins=[]>
config.ru:6: undefined method `worker_processes' for
#<Rack::Builder:0xb7a107b8 @ins=[]> (NoMethodError)

from /app/ruby.1.8.7-p174/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/builder.rb:29:in `instance_eval'

from /app/ruby.1.8.7-p174/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/builder.rb:29:in `initialize'
	from config.ru:1:in `new'
	from config.ru:1

from /app/ruby.1.8.7-p174/lib/ruby/gems/1.8/gems/unicorn-0.93.4/lib/unicorn.rb:697:in `eval'

from /app/ruby.1.8.7-p174/lib/ruby/gems/1.8/gems/unicorn-0.93.4/bin/unicorn:130

from /app/ruby.1.8.7-p174/lib/ruby/gems/1.8/gems/unicorn-0.93.4/lib/unicorn.rb:697:in `call'

from /app/ruby.1.8.7-p174/lib/ruby/gems/1.8/gems/unicorn-0.93.4/lib/unicorn.rb:697:in `build_app!'

from /app/ruby.1.8.7-p174/lib/ruby/gems/1.8/gems/unicorn-0.93.4/lib/unicorn.rb:170:in `start'

from /app/ruby.1.8.7-p174/lib/ruby/gems/1.8/gems/unicorn-0.93.4/lib/unicorn.rb:20:in `run'

from /app/ruby.1.8.7-p174/lib/ruby/gems/1.8/gems/unicorn-0.93.4/bin/unicorn:165
	from /app/ruby/bin/unicorn:19:in `load'
	from /app/ruby/bin/unicorn:19
unicorn@install01:/app/unicorn/config$ 

Now is this error generanted because it requires a rails envoiroment.

I am happy to be pointed to a website that will help me learn what is
required if such a thing exists.

thank you for your time

regards

Huet Bartels

Re: Sysadmin Setup question for Unicorn

[Eric Wong]

huet bartels <hbartels@i-neda.com> wrote:
> Dear List,
> 
> I am very new to ruby and this list.
> 
> I am trying to setup unicorn to run on ubuntu 8.10.  When I try to run
> unicorn I am getting the following error.
> 
> with the following command I get the following error.  Is this because I
> dont have a ruby rails app installed yet?

Hi Huet,

Yes, you need a Ruby on Rails app to run `unicorn_rails' and you should
be able to run any Rack application with `unicorn'.

> unicorn@install01:/app/unicorn/config$ unicorn_rails -c config.ru 
> I, [2009-11-03T13:05:47.609036 #30824]  INFO -- : unlinking existing
> socket=/app/unicorn/tmp/sockets/unicorn.sock
> I, [2009-11-03T13:05:47.609458 #30824]  INFO -- : listening on
> addr=/app/unicorn/tmp/sockets/unicorn.sock fd=3
> I, [2009-11-03T13:05:47.609541 #30824]  INFO -- : Refreshing Gem list
> /app/ruby/bin/unicorn_rails must be run inside RAILS_ROOT: #<LoadError:
> no such file to load -- config/boot>

Also, your config.ru is the rackup config file, not the Unicorn config
file which you would specify with the "-c" option.  You only need a
config.ru if you're using a non-Rails Rack application (but you can
use one with Rails, too).  You don't need to pass any switches for
the config.ru, either, if it's in ./config.ru it'll automatically
be detected and otherwise you can just pass it as the first non-option
argument:

   unicorn production.ru

Here, you're specifying Unicorn config directives in your config.ru:

> I, [2009-11-03T13:03:53.555596 #30820]  INFO -- : Refreshing Gem list
> Exception `NoMethodError' at config.ru:6 - undefined method
> `worker_processes' for #<Rack::Builder:0xb7a107b8 @ins=[]>
> Exception `NoMethodError'
> at /app/ruby.1.8.7-p174/lib/ruby/gems/1.8/gems/unicorn-0.93.4/bin/unicorn:130 - undefined method `worker_processes' for #<Rack::Builder:0xb7a107b8 @ins=[]>
> config.ru:6: undefined method `worker_processes' for
> #<Rack::Builder:0xb7a107b8 @ins=[]> (NoMethodError)

config.ru is meant to be used with all Rack-able servers (Mongrel, Thin,
Passenger, Unicorn) whereas the Unicorn config file is only meant for
Unicorn.

> I am happy to be pointed to a website that will help me learn what is
> required if such a thing exists.

http://rack.rubyforge.org/ has some good links on how to setup config.ru

-- 
Eric Wong

Re: Sysadmin Setup question for Unicorn

[Chris Wanstrath]

On Tue, Nov 3, 2009 at 4:19 AM, huet bartels <hbartels@i-neda.com> wrote:

> I am trying to setup unicorn to run on ubuntu 8.10.  When I try to run
> unicorn I am getting the following error.
>
> with the following command I get the following error.  Is this because I
> dont have a ruby rails app installed yet?

Yes. unicorn_rails must be run from RAILS_ROOT.

See http://unicorn.bogomips.org/unicorn_rails_1.html

> The other error i get is when I run unicorn with the command line.
>
> unicorn@install01:/app/unicorn/config$ unicorn -c config.ru
> {:daemonize=>false,
>  :unicorn_options=>
>  {:listeners=>[], :config_file=>"/app/unicorn/config/config.ru"},
>  :app=>
>
> #<Proc:0xb7bf2a68@/app/ruby.1.8.7-p174/lib/ruby/gems/1.8/gems/unicorn-0.93.4/bin/unicorn:123>}
> I, [2009-11-03T13:03:53.555204 #30820]  INFO -- : unlinking existing
> socket=/app/unicorn/tmp/sockets/unicorn.sock
> I, [2009-11-03T13:03:53.555538 #30820]  INFO -- : listening on
> addr=/app/unicorn/tmp/sockets/unicorn.sock fd=3
> I, [2009-11-03T13:03:53.555596 #30820]  INFO -- : Refreshing Gem list
> Exception `NoMethodError' at config.ru:6 - undefined method
> `worker_processes' for #<Rack::Builder:0xb7a107b8 @ins=[]>
> Exception `NoMethodError'
> at /app/ruby.1.8.7-p174/lib/ruby/gems/1.8/gems/unicorn-0.93.4/bin/unicorn:130 - undefined method `worker_processes' for #<Rack::Builder:0xb7a107b8 @ins=[]>
> config.ru:6: undefined method `worker_processes' for
> #<Rack::Builder:0xb7a107b8 @ins=[]> (NoMethodError)
>
> from /app/ruby.1.8.7-p174/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/builder.rb:29:in `instance_eval'
>
> from /app/ruby.1.8.7-p174/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/builder.rb:29:in `initialize'
>        from config.ru:1:in `new'
>        from config.ru:1
>
> from /app/ruby.1.8.7-p174/lib/ruby/gems/1.8/gems/unicorn-0.93.4/lib/unicorn.rb:697:in `eval'
>
> from /app/ruby.1.8.7-p174/lib/ruby/gems/1.8/gems/unicorn-0.93.4/bin/unicorn:130
>
> from /app/ruby.1.8.7-p174/lib/ruby/gems/1.8/gems/unicorn-0.93.4/lib/unicorn.rb:697:in `call'
>
> from /app/ruby.1.8.7-p174/lib/ruby/gems/1.8/gems/unicorn-0.93.4/lib/unicorn.rb:697:in `build_app!'
>
> from /app/ruby.1.8.7-p174/lib/ruby/gems/1.8/gems/unicorn-0.93.4/lib/unicorn.rb:170:in `start'
>
> from /app/ruby.1.8.7-p174/lib/ruby/gems/1.8/gems/unicorn-0.93.4/lib/unicorn.rb:20:in `run'
>
> from /app/ruby.1.8.7-p174/lib/ruby/gems/1.8/gems/unicorn-0.93.4/bin/unicorn:165
>        from /app/ruby/bin/unicorn:19:in `load'
>        from /app/ruby/bin/unicorn:19
> unicorn@install01:/app/unicorn/config$
>
> Now is this error generanted because it requires a rails envoiroment.

You need a separate unicorn.rb, distinct from your config.ru when
using Unicorn. It appears you are using the proper config option
(worker_processes) but putting it in the wrong file (config.ru).

config.ru defines your app. Unicorn runs your app. The two are
interchangeable, and this is a good thing.

Trying moving your unicorn specific logic into a unicorn.rb and
launching it with `unicorn -c unicorn.rb config.ru`

-- 
Chris Wanstrath
http://github.com/defunkt