Rails - Jun 2006 - Problem integrating rails into apache

Hi all,

I''ve read the guide on integrating rails into apache on the 
wiki.rubyonrails.com wiki, but I run into a problem.

I am trying to get the cookbook application as treated in the onlamp 
tutorial about ruby on rails to work form apache. I can view the 
index.html, but visiting cookbook/recipe/list gives me

Application error

Change this error message for exceptions thrown outside of an action 
(like in Dispatcher setups or broken Ruby code) in public/500.html

An error appears in development.log about
Operation not permitted - 
/web/rails/cookbook/public/../config/../tmp/sessions//ruby_sess.2e1330f3de760fc2
/usr/lib/ruby/1.8/cgi/session/pstore.rb:72:in `chmod''
etc..

The complete error log and all configuration stuff can be found on 
http://smokeyd.homelinux.com/tmp/rails.html
I hope someone can help me figure this out.
Thanks!

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Posted via http://www.ruby-forum.com/.

SmokeyD wrote:
> An error appears in development.log about
> Operation not permitted - 
>
/web/rails/cookbook/public/../config/../tmp/sessions//ruby_sess.2e1330f3de760fc2
> /usr/lib/ruby/1.8/cgi/session/pstore.rb:72:in `chmod''
As I already guessed, the problem was permission related. Rails tries to 
chmod the ruby.sess.... files in <railsroot>/tmp/sessions/. I had the 
files with permissions 777 (everybody rwx on windows), but I didn''t 
realize that in order to chmod a file, you have to be the actual owner 
of the file, not just a member of the owning group. So I changed the 
owner to the user under which apache is running and the problem was 
solved.

A tip to apache2 users though, use mod_fcgid to speed up rails. The 
alternative mod_fastcgi isn''t really good. I read bad things about it
on
the internet, but most of all, I couldn''t get rails to work with 
mod_fastcgi, but could with mod_fcgid. See Paul''s journal on 
http://journal.paul.querna.org/articles/2006/01/01/using-mod_fcgid-for-ruby-on-rails-applications

If you''re using debian or any debian based system, skip steps 1-6. Just
install libapache2-mod_fcgid and make sure there are symlinks in 
/etc/apache2/modules-available to the fcgid files in 
/etc/apache2/modules-enabled.

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