Rails - Apr 2006 - Moving my site into production mode - general questions

Hi!

I''ve just finished my ror site and i''d like to move it into
production
mode.
Now it runs on linux/apache 1.3/cgi.

1. Can i use fcgi in development mode? I''ve read somewhere that because
of caching it causes memory leaks and fcgi shouldn''t generally be used 
in development. Does plain cgi also causes memory leaks in development 
mode?

2. Does rails automatically delete its session files? If not how to set 
up cron to automatically delete session files that are i.e. 24h old? 
Does rails app with fcgi create any other temporary files that i should 
take care of?

3. Is there good tutorial about caching in rails? What it is, how to use 
it, what can/should be cached, when to use it etc.

4. Where to set RAILS_ENV to production mode? Is it ok if i set it in 
enviroment.rb or should i set it in .htaccess or httpd.conf? I''ve read 
that it''s not ''clean'' way to set it inside
enviroment.rb. Why?

5. What are standard error pages in rails in production mode? How to 
modify them?

6. Is there anything else that i should watch out for while moving my 
app into production?

Thanks in advance

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szymek  wrote:
> Hi!
> 
> I''ve just finished my ror site and i''d like to move it
into production
> mode.
> Now it runs on linux/apache 1.3/cgi.
> 
> 1. Can i use fcgi in development mode? I''ve read somewhere that
because
> of caching it causes memory leaks and fcgi shouldn''t generally be
used
> in development. Does plain cgi also causes memory leaks in development 
> mode?
You shouldn''t have any problems with cgi in development mode because 
your process die after each request.  You can use fcgi in development 
mode if you want.  Just restart your processes often.
> 
> 2. Does rails automatically delete its session files? If not how to set 
> up cron to automatically delete session files that are i.e. 24h old? 
> Does rails app with fcgi create any other temporary files that i should 
> take care of?
Rails does not automatically delete any temp/session
files.
> 
> 3. Is there good tutorial about caching in rails? What it is, how to use 
> it, what can/should be cached, when to use it etc.
The best tutorial I''ve seen is in the agile web devleopment book
> 
> 4. Where to set RAILS_ENV to production mode? Is it ok if i set it in 
> enviroment.rb or should i set it in .htaccess or httpd.conf? I''ve
read
> that it''s not ''clean'' way to set it inside
enviroment.rb. Why?
I set mine in envrioment.rb
> 
> 5. What are standard error pages in rails in production mode? How to 
> modify them?
You can modify them in your .htaccess or you can actuall modify the 
error pages in public
> 
> 6. Is there anything else that i should watch out for while moving my 
> app into production?
> 
Make sure you freeze your version of rails into your vendor folder if 
you are on shared hosting
> Thanks in advance

charlie
recentrambles.com

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Thanks!

Regarding session files: if i don''t use sessions in my site, can i 
somehow turn if off, so the files won''t be created or rails uses them 
for something?

And what about log file? Should i also delete it or truncate it, if it 
grows to big, or just leave it? Does it by default log only errors or 
everything?

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

szymek  wrote:
> Thanks!
> 
> Regarding session files: if i don''t use sessions in my site, can i
> somehow turn if off, so the files won''t be created or rails uses
them
> for something?
> 
> And what about log file? Should i also delete it or truncate it, if it 
> grows to big, or just leave it? Does it by default log only errors or 
> everything?
If you don''t explicitly create a session then there won''t be
to worry
about.  there is a shell script that comes with rails that will clean 
out your logs.  If you freeze rails into your vendor directory, you can 
find it at vendor/rails/cleanlogs.sh

Charlie Bowman
www.recentrambles.com



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On Apr 8, 2006, at 4:24 PM, charlie bowman wrote:
> szymek  wrote:
>> Thanks!
>>
>> Regarding session files: if i don''t use sessions in my site,
can i
>> somehow turn if off, so the files won''t be created or rails
uses them
>> for something?
>>
>> And what about log file? Should i also delete it or truncate it,  
>> if it
>> grows to big, or just leave it? Does it by default log only errors or
>> everything?
>
> If you don''t explicitly create a session then there won''t
be to worry
> about.  there is a shell script that comes with rails that will clean
> out your logs.  If you freeze rails into your vendor directory, you  
> can
> find it at vendor/rails/cleanlogs.sh
>
> Charlie Bowman
> www.recentrambles.com

Actually even if your app doesnt ever store anything in the sessions,  
session files will still be created for every user. To turn off  
sessions put the following in your application.rb inside the class  
definition:

session :off

You can also do conditional sessions like this:

session :off,  :except => %w{foo bar}
OR
session :off, :only => %w{foo bar}

Cheers-
-Ezra

> You can also do conditional sessions like this:
> 
> session :off,  :except => %w{foo bar}
> OR
> session :off, :only => %w{foo bar}
> 
> Cheers-
> -Ezra
I''m assuming that foo and bar are controlers and that if you had 
contollers in directorys that your could do

session :off, :except => ''admin/private_stuff''

is that correct?


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