Apache rewrites with mongrel

I´m knew to rewrites on apache in combination with mongrelcluster.
It´s urgend for me, because the server has an loadaverage about 10
:-(((((

Ok so I´m using 3 mongrel-server on an mongrelcluster. The Loadbalancer
ist apache
I think, that my rewrites are not correct. Please can anybody check my
rewrites ?

That´s in my /etc/apache2/conf.d/rails.proxy_cluster.conf
<Proxy balancer://mongrel_cluster>
BalancerMember http://127.0.0.1:4712
BalancerMember http://127.0.0.1:4713
BalancerMember http://127.0.0.1:4714

that´s in my /etc/apache2/sites-enabled/000-rails

    RewriteEngine On

    # Deflate
    AddOutputFilterByType DEFLATE text/html text/plain text/css

text/xml
BrowserMatch ^Mozilla/4 gzip-only-text/html
BrowserMatch ^Mozilla/4.0[678] no-gzip
BrowserMatch bMSIE !no-gzip !gzip-only-text/html

    ProxyPass /images !
    ProxyPass /stylesheets !
    ProxyPass /javascripts !

    Alias /images /var/www/rails/myApp/current/public/images
    Alias /stylesheets

/var/www/rails/myApp/current/public/stylesheets
Alias /javascripts
/var/www/rails/myApp/current/public/javascripts

    RewriteLog /var/log/apache2/rails-rewrite.log

And last not lease my .htaccess in public

AddHandler fastcgi-script .fcgi
AddHandler cgi-script .cgi
Options +FollowSymLinks +ExecCGI

AddDefaultCharset UTF-8
RewriteEngine On

RewriteRule ^01,([0-9]).html$ balancer://mongrel_cluster/shop/event/$1
[P,QSA,L]
RewriteRule ^01,([a-zA-Z0-9]
),([0-9]+).html$
balancer://mongrel_cluster/shop/search/$2?startnumber=$1 [P,L]

RewriteRule ^$ index.html [QSA]
RewriteRule ^([^.]+)$ $1.html [QSA]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ dispatch.cgi [QSA,L]

the rewrite for static-sites is correct?
I saw this lines on a howto

RewriteCond %{DOCUMENT_ROOT}/%{REQUEST_FILENAME} !-f
RewriteRule ^/(.*)$ balancer://mongrel_cluster%{REQUEST_URI} [P,QSA,L]

if I call www.myApp.com/shop (redirected internaly by globalize to
en/shop )
then I`ll get the cached page under public/en/shop.html

but when I call www.myApp.com/shop again then I can see in my logfiles

Processing ShopController#index (for xx.xxx.xxx.xx at 2008-06-16
11:46:04) [GET]
Session ID: 4cbe53c829bdc7ef9ceb81cc6f0fe1fa
Parameters: {“action”=>“index”, “controller”=>“shop”, “locale”=>“en”}
Rendering template within layouts/shop
Rendering shop/index
Completed in 0.17766 (5 reqs/sec) | Rendering: 0.09954 (56%) | DB:
0.00000 (0%) | 200 OK [http://www.myApp.com/en/shop/]

I think something went wrong with my rewrites.

thanks for helping.

cheers guido

why do you need rewrites at all?

just point your document root to the rails public dir
and these ProxyPass settings should be enough

ProxyPass /images !
ProxyPass /stylesheets !
ProxyPass /javascripts !
ProxyPass / balancer://mongrelcluster/
ProxyPassReverse / balancer://mongrelcluster/


Freundliche
Grüße,Ralf V.

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Am 16.06.2008 um 11:47 schrieb Guido Holz:

uff… I saw this on an turorial… but something went wrong… know I
have no time to cahnge and try out what´s right :frowning:

So what handles the cached static-html-sites on your proxypasses?!? is
this realy enough?

another question is the difference between

RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ dispatch.cgi [QSA,L]

and

RewriteCond %{DOCUMENT_ROOT}/%{REQUEST_FILENAME} !-f
RewriteRule ^/(.*)$ balancer://mongrel_cluster%{REQUEST_URI} [P,QSA,L]

do I need the first or the second one?!?

thanks guido

neongrau __ wrote:

why do you need rewrites at all?

just point your document root to the rails public dir
and these ProxyPass settings should be enough

ProxyPass /images !
ProxyPass /stylesheets !
ProxyPass /javascripts !
ProxyPass / balancer://mongrelcluster/
ProxyPassReverse / balancer://mongrelcluster/


Freundliche
Gr��e,Ralf V.

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Am 16.06.2008 um 11:47 schrieb Guido Holz:

the dispatch.cgi thing was meant for fastcgi setups without mongels,
but noone is using that anymore.

i don’t think you need any rewrites at all.

by pointing the document root to the public dir and the ProxyPass that
end with “!” will make apache serve them statically without bothering
your mongrels.
everything else will then be directed to the cluster.

here is an example container i’m using

this is with windows authentication utilizing an active directory
domain and injecting the authenticated user into the headers for
further use within my app controller
assets like images / stylesheets and javascripts get served directly
and are also memcached
and all text content getting gzip compressed which saves about 70% of
traffic

<VirtualHost *:80>
ServerName someserver.domain.de
DocumentRoot “C:/rails/public/”

ErrorLog “C:/rails/log/balancer_error.log”

CacheEnable mem /images
CacheEnable mem /stylesheets
CacheEnable mem /javascripts
CacheEnable mem /latest/images
MCacheSize 64000000
MCacheMaxObjectCount 10000
MCacheMinObjectSize 1
MCacheMaxObjectSize 20480

AddOutputFilterByType DEFLATE text/html text/plain text/xml text/
css application/json text/json application/xml application/xhtml+xml
text/javascript application/javascript application/x-javascript

ProxyRequests Off
ProxyVia On
ProxyPreserveHost On

ProxyPass /balancer !
ProxyPass /images !
ProxyPass /stylesheets !
ProxyPass /javascripts !

ProxyPass / balancer://mongrelcluster/
ProxyPassReverse / balancer://mongrelcluster/

AuthName "Windows Authentication" AuthType SSPI SSPIAuth On SSPIAuthoritative On SSPIOfferSSPI On SSPIOfferBasic On SSPIBasicPreferred On SSPIPerRequestAuth On SSPIDomain somedomain Require valid-user
 RewriteEngine On
 RewriteCond %{REMOTE_USER} (.+)
 RewriteRule . - [E=RU:%1]
 RequestHeader set REMOTE_USER %{RU}e

<Proxy balancer://mongrelcluster>
BalancerMember http://127.0.0.1:3101
BalancerMember http://127.0.0.1:3102
BalancerMember http://127.0.0.1:3103
BalancerMember http://127.0.0.1:3104
BalancerMember http://127.0.0.1:3105
BalancerMember http://127.0.0.1:3106

<Location /balancer>
SetHandler balancer-manager
AuthName “Windows Authentication for Balancer”
AuthType SSPI
SSPIAuth on
SSPIOfferSSPI on
SSPIOfferBasic off
SSPIBasicPreferred On
SSPIUsernameCase lower
SSPIDomain somedomain
Require group “somedomain\domain admins”


Freundliche Grüße,
Ralf V.

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Am 16.06.2008 um 12:27 schrieb Guido Holz: