Hello,
I use Ruby on Rails to generate images, which are delivered via
mod_fastcgi to apache2.
These images should be cached using mod_cache and mod_disk_cache.
But it does not work.
In Rails I set my http headers like this:
expires_in 30.hours, :private => false
@response.headers['Last-Modified'] = im.serie.received
@response.headers['Content-Length'] = data.size
send_data data, :type => 'image/png', :disposition => 'inline'
The important settings from apache2 conf look like this:
<IfModule mod_fastcgi.c>
FastCgiServer /home/hmeyer/devel/dicomweb/public/dispatch.fcgi \
-initial-env RAILS_ENV=development \
-processes 5 \
-idle-timeout 60
</IfModule>
<VirtualHost *>
DocumentRoot /home/hmeyer/devel/dicomweb/public
ErrorLog /home/hmeyer/devel/dicomweb/log/apache.log
CustomLog /home/hmeyer/devel/dicomweb/log/access.log combined
SetEnv RAILS_ENV development
<IfModule mod_cache.c>
<IfModule mod_disk_cache.c>
CacheRoot /var/www/cache/
CacheSize 256000
CacheEnable disk /image
</IfModule>
CacheDirLevels 5
CacheDirLength 3
</IfModule>
<Directory /home/hmeyer/dicomweb/public/>
Options ExecCGI FollowSymLinks
AddHandler cgi-script .cgi
AllowOverride all
Order allow,deny
Allow from all
ExpiresByType image/png "now plus 1 month"
ExpiresActive On
</Directory>
</VirtualHost>
What am I doing wrong?
Thanx for your help!
Henning
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