Rails core - May 2011 - Rails 3.1.rc1 + gem coffee-script - WEBrick and Unicorn hangs.

Environment:
rvm
ruby 1.9.2-p180
rails 3.1.rc1

Conditions:
gem "coffee-script" # in Gemfile
at least one file with .js.coffee (even empty inside) in app/assets

Result:
WEBrick or Unicorn hangs. Only kill -9 <pid> helps.

P.S. What additional info should I provide?

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Oh, I forgot! I think the problem is somewhere around these two lines
in my Gemfile:

gem ''therubyracer'', :require => ''v8''
gem ''uglifier''

Because without the first line Rails gives me this on start:
in `<module:ExecJS>'': Could not find a JavaScript runtime. See
https://github.com/sstephenson/execjs for a list of available
runtimes. (ExecJS::RuntimeUnavailable)

2011/5/27 Andrey Voronkov <voronkovaa@gmail.com>:
> Environment:
> rvm
> ruby 1.9.2-p180
> rails 3.1.rc1
>
> Conditions:
> gem "coffee-script" # in Gemfile
> at least one file with .js.coffee (even empty inside) in app/assets
>
> Result:
> WEBrick or Unicorn hangs. Only kill -9 <pid> helps.
>
> P.S. What additional info should I provide?
>
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You need a javascript interpreter like therubyracer installed. Keep that
line, but remove the version. It shouldn''t be necessary. Try running
your
app with and without the uglifier gem. My guess is a problem with uglifier.
If so, post the error from that.

On Fri, May 27, 2011 at 9:36 AM, Andrey Voronkov
<voronkovaa@gmail.com>wrote:
> Oh, I forgot! I think the problem is somewhere around these two lines
> in my Gemfile:
>
> gem ''therubyracer'', :require => ''v8''
> gem ''uglifier''
>
> Because without the first line Rails gives me this on start:
> in `<module:ExecJS>'': Could not find a JavaScript runtime.
See
> https://github.com/sstephenson/execjs for a list of available
> runtimes. (ExecJS::RuntimeUnavailable)
>
> 2011/5/27 Andrey Voronkov <voronkovaa@gmail.com>:
> > Environment:
> > rvm
> > ruby 1.9.2-p180
> > rails 3.1.rc1
> >
> > Conditions:
> > gem "coffee-script" # in Gemfile
> > at least one file with .js.coffee (even empty inside) in app/assets
> >
> > Result:
> > WEBrick or Unicorn hangs. Only kill -9 <pid> helps.
> >
> > P.S. What additional info should I provide?
> >
>
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now these two lines:
gem ''therubyracer''
gem ''uglifier''

When I remove gem ''uglifier'' - nothning changes - server is
still
hangs on the first request. This is the last strings in log:
Started GET "/assets/application.css" for 127.0.0.1 at 2011-05-28
09:36:36 +1000
Compiled app/assets/stylesheets/application.css  (19ms)  (pid 27815)
Compiled app/assets/stylesheets/home.css.scss  (45ms)  (pid 27815)
Compiled app/assets/stylesheets/news.css.scss  (1ms)  (pid 27815)
Compiled app/assets/stylesheets/sections.css.scss  (30ms)  (pid 27815)
Compiled app/assets/stylesheets/application.css  (0ms)  (pid 27815)

Served asset /application.css - 200 OK  (0.101s)  (pid 27815)



Started GET "/assets/application.js" for 127.0.0.1 at 2011-05-28
09:36:36 +1000
Compiled app/assets/javascripts/application.js  (4ms)  (pid 27815)
Compiled
~/.rvm/gems/ruby-1.9.2-p180@cancer/gems/jquery-rails-1.0.9/vendor/assets/javascripts/jquery.js
 (35ms)  (pid 27815)
Compiled
~/.rvm/gems/ruby-1.9.2-p180@cancer/gems/jquery-rails-1.0.9/vendor/assets/javascripts/jquery-ui.js
 (1ms)  (pid 27815)
Compiled
~/.rvm/gems/ruby-1.9.2-p180@cancer/gems/jquery-rails-1.0.9/vendor/assets/javascripts/jquery_ujs.js
 (0ms)  (pid 27815)
Compiled app/assets/javascripts/home.js  (0ms)  (pid 27815)
Compiled app/assets/javascripts/news.js  (0ms)  (pid 27815)

After news.js there is a file named sections.js.coffee and it''s empty.
Server always hangs before this file compiling with or without
uglifier gem.

2011/5/28 Matthew Smart <m.d.smart@gmail.com>:
> You need a javascript interpreter like therubyracer installed. Keep that
> line, but remove the version. It shouldn''t be necessary. Try
running your
> app with and without the uglifier gem. My guess is a problem with uglifier.
> If so, post the error from that.
>
> On Fri, May 27, 2011 at 9:36 AM, Andrey Voronkov
<voronkovaa@gmail.com>
> wrote:
>>
>> Oh, I forgot! I think the problem is somewhere around these two lines
>> in my Gemfile:
>>
>> gem ''therubyracer'', :require =>
''v8''
>> gem ''uglifier''
>>
>> Because without the first line Rails gives me this on start:
>> in `<module:ExecJS>'': Could not find a JavaScript
runtime. See
>> https://github.com/sstephenson/execjs for a list of available
>> runtimes. (ExecJS::RuntimeUnavailable)
>>
>> 2011/5/27 Andrey Voronkov <voronkovaa@gmail.com>:
>> > Environment:
>> > rvm
>> > ruby 1.9.2-p180
>> > rails 3.1.rc1
>> >
>> > Conditions:
>> > gem "coffee-script" # in Gemfile
>> > at least one file with .js.coffee (even empty inside) in
app/assets
>> >
>> > Result:
>> > WEBrick or Unicorn hangs. Only kill -9 <pid> helps.
>> >
>> > P.S. What additional info should I provide?
>> >
>>
>> --
>> You received this message because you are subscribed to the Google
Groups
>> "Ruby on Rails: Core" group.
>> To post to this group, send email to rubyonrails-core@googlegroups.com.
>> To unsubscribe from this group, send email to
>> rubyonrails-core+unsubscribe@googlegroups.com.
>> For more options, visit this group at
>> http://groups.google.com/group/rubyonrails-core?hl=en.
>>
>
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So there is no error actually being output from the server? It just straight
up hangs?

Without any error output, or trace, it''s very hard to say. At this
point I
wouldn''t know what to point my finger at except for the local
extensions of
the js runtime. Maybe try replacing therubyracer with another gem like
therubyrhino, run bundle update and see if you have any different, or at
least more verbose results.

So:

in ./Gemfile
remove: gem ''therubyracer''
insert: gem ''therubyrhino''

then from the shell:
> bundle update
On Fri, May 27, 2011 at 7:43 PM, Andrey Voronkov
<voronkovaa@gmail.com>wrote:
> now these two lines:
> gem ''therubyracer''
> gem ''uglifier''
>
> When I remove gem ''uglifier'' - nothning changes - server
is still
> hangs on the first request. This is the last strings in log:
> Started GET "/assets/application.css" for 127.0.0.1 at 2011-05-28
09:36:36
> +1000
> Compiled app/assets/stylesheets/application.css  (19ms)  (pid 27815)
> Compiled app/assets/stylesheets/home.css.scss  (45ms)  (pid 27815)
> Compiled app/assets/stylesheets/news.css.scss  (1ms)  (pid 27815)
> Compiled app/assets/stylesheets/sections.css.scss  (30ms)  (pid 27815)
> Compiled app/assets/stylesheets/application.css  (0ms)  (pid 27815)
>
> Served asset /application.css - 200 OK  (0.101s)  (pid 27815)
>
>
>
> Started GET "/assets/application.js" for 127.0.0.1 at 2011-05-28
09:36:36
> +1000
> Compiled app/assets/javascripts/application.js  (4ms)  (pid 27815)
> Compiled ~/.rvm/gems/ruby-1.9.2-p180@cancer
> /gems/jquery-rails-1.0.9/vendor/assets/javascripts/jquery.js
>  (35ms)  (pid 27815)
> Compiled ~/.rvm/gems/ruby-1.9.2-p180@cancer
> /gems/jquery-rails-1.0.9/vendor/assets/javascripts/jquery-ui.js
>  (1ms)  (pid 27815)
> Compiled ~/.rvm/gems/ruby-1.9.2-p180@cancer
> /gems/jquery-rails-1.0.9/vendor/assets/javascripts/jquery_ujs.js
>  (0ms)  (pid 27815)
> Compiled app/assets/javascripts/home.js  (0ms)  (pid 27815)
> Compiled app/assets/javascripts/news.js  (0ms)  (pid 27815)
>
> After news.js there is a file named sections.js.coffee and it''s
empty.
> Server always hangs before this file compiling with or without
> uglifier gem.
>
> 2011/5/28 Matthew Smart <m.d.smart@gmail.com>:
> > You need a javascript interpreter like therubyracer installed. Keep
that
> > line, but remove the version. It shouldn''t be necessary. Try
running your
> > app with and without the uglifier gem. My guess is a problem with
> uglifier.
> > If so, post the error from that.
> >
> > On Fri, May 27, 2011 at 9:36 AM, Andrey Voronkov
<voronkovaa@gmail.com>
> > wrote:
> >>
> >> Oh, I forgot! I think the problem is somewhere around these two
lines
> >> in my Gemfile:
> >>
> >> gem ''therubyracer'', :require =>
''v8''
> >> gem ''uglifier''
> >>
> >> Because without the first line Rails gives me this on start:
> >> in `<module:ExecJS>'': Could not find a JavaScript
runtime. See
> >> https://github.com/sstephenson/execjs for a list of available
> >> runtimes. (ExecJS::RuntimeUnavailable)
> >>
> >> 2011/5/27 Andrey Voronkov <voronkovaa@gmail.com>:
> >> > Environment:
> >> > rvm
> >> > ruby 1.9.2-p180
> >> > rails 3.1.rc1
> >> >
> >> > Conditions:
> >> > gem "coffee-script" # in Gemfile
> >> > at least one file with .js.coffee (even empty inside) in
app/assets
> >> >
> >> > Result:
> >> > WEBrick or Unicorn hangs. Only kill -9 <pid> helps.
> >> >
> >> > P.S. What additional info should I provide?
> >> >
> >>
> >> --
> >> You received this message because you are subscribed to the Google
> Groups
> >> "Ruby on Rails: Core" group.
> >> To post to this group, send email to
rubyonrails-core@googlegroups.com.
> >> To unsubscribe from this group, send email to
> >> rubyonrails-core+unsubscribe@googlegroups.com.
> >> For more options, visit this group at
> >> http://groups.google.com/group/rubyonrails-core?hl=en.
> >>
> >
> > --
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Groups
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changed gem ''therubyracer'' to gem
''therubyrhino''
run bundle update

Got this:

in `<module:ExecJS>'': Could not find a JavaScript runtime. See
https://github.com/sstephenson/execjs for a list of available
runtimes. (ExecJS::RuntimeUnavailable)

2011/5/28 Matthew Smart <m.d.smart@gmail.com>:
> therubyrhino
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Hey,

I managed to reproduce your problem with therubyrhino not being recognized,
and I went on to test the mustang engine, and that causes the ExecJS
framework to crash outright. I believe this may be a problem more related to
ExecJS, you will likely get some better help over on the ExecJS Issues
board, here: https://github.com/sstephenson/execjs/issues

Good Luck!

On Fri, May 27, 2011 at 9:43 PM, Andrey Voronkov
<voronkovaa@gmail.com>wrote:
> changed gem ''therubyracer'' to gem
''therubyrhino''
> run bundle update
>
> Got this:
>
> in `<module:ExecJS>'': Could not find a JavaScript runtime.
See
> https://github.com/sstephenson/execjs for a list of available
> runtimes. (ExecJS::RuntimeUnavailable)
>
> 2011/5/28 Matthew Smart <m.d.smart@gmail.com>:
> > therubyrhino
>
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Thanks for all the help and advices! New therubyracer 0.9.0 gem did
the trick. Still don''t know the reason of such behaviour.

2011/5/29 Matthew Smart <m.d.smart@gmail.com>:
> Hey,
> I managed to reproduce your problem with therubyrhino not being recognized,
> and I went on to test the mustang engine, and that causes the ExecJS
> framework to crash outright. I believe this may be a problem more related
to
> ExecJS, you will likely get some better help over on the ExecJS Issues
> board, here: https://github.com/sstephenson/execjs/issues
> Good Luck!
>
> On Fri, May 27, 2011 at 9:43 PM, Andrey Voronkov
<voronkovaa@gmail.com>
> wrote:
>>
>> changed gem ''therubyracer'' to gem
''therubyrhino''
>> run bundle update
>>
>> Got this:
>>
>> in `<module:ExecJS>'': Could not find a JavaScript
runtime. See
>> https://github.com/sstephenson/execjs for a list of available
>> runtimes. (ExecJS::RuntimeUnavailable)
>>
>> 2011/5/28 Matthew Smart <m.d.smart@gmail.com>:
>> > therubyrhino
>>
>> --
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>>
>
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