On Jun 12, Jessica Hawkwell wrote:
> Hai peeps! =^_^=
>
> I have a system that stores a lot of images in a database. What I'm
> running is an avatar site, and there are times when it seems everyone has
> decided to update their avatars all at the same time. With nearly 70% of
> our non-static image requests being little 32x32 icons for all the items
> that can be equipped, mass amounts of icon loads sometimes makes the site
> run about a second or two slower than usual.
>
> I came to the obvious conclusion the best way to resolve this is to have
> nginx cache these little item icons. Unfortunately, I have tried and
> failed to make this happen. I think having nginx caching them would
> greatly improve performance since it would not have to access the back-end
> FastCGI servers to get the icons, they'd be local (which is always faster,
> so yay). Below is the server block in question, I apologize in advance if
> the regex for /avatars/ causes any negative side effects.
>
> server {
> listen 80;
> server_name varusonline.com;
> root /usr/local/www/varusonline.com/;
>
> location / {
> gzip on;
> gzip_types image/png image/gif image/jpeg text/plain
> text/javascript text/css;
> }
>
> location /avatars/ {
> rewrite
> ^/avatars/([-0-9]+)(|_head|_full)\.(png|gif|jpg)(\?(.*))?$
> /avatar.php?u=$1&show=$2&format=$3&$5 last;
> }
>
> location /domains/ {
> rewrite
> ^/domains/([a-z]+)/([-0-9a-z.,]+)/([-0-9a-z.]+)?(\?(.*))?$
> /domains.php?$1=$2&item=$3&$5 last;
> }
>
> location /img_view/ {
> set $img $document_uri;
> rewrite ^/img_view/(avi|bod)-([0-9]+).png$
> /img_view.php?subset=$1&img_id=$2 last;
> set $droot /usr/local/www/caches/img_view/;
>
> proxy_store $droot${img};
>
> if (!-f $droot${img}) {
> fastcgi_pass fcgi;
> }
>
> if (-f $droot${img}) {
> expires max;
> }
> }
>
> location ~ \.php$ {
> fastcgi_pass fcgi;
> }
> }
>
> Through all of this with everything I have tried, the cache folder is still
> empty, which makes this little kitty sad. Is there a way to make nginx
> cache images from just that one script?
Is your php script returning the appropriate cache control headers?
