nginx question

jcaleb

hello, i need nginx help

i am experimenting nginx caching, and this works:

fastcgi_cache_path /var/cache/nginx levels=1:2 keys_zone=microcache:5m max_size=1000m;

server {
    listen 80;
    server_name domain.com www.domain.com;
    access_log /var/log/nginx/website.access_log;
    error_log /var/log/nginx/website.error_log;
    root /home/jon/temp/php/domain.com;
    index index.php index.htm index.html;
    location ~ .php$ {
        try_files $uri $uri/ /index.php;
        set $no_cache "";
        if ($request_method !~ ^(GET|HEAD)$) {
            set $no_cache "1";
        }
        if ($no_cache = "1") {
            add_header Set-Cookie "_mcnc=1; Max-Age=2; Path=/";
            add_header X-Microcachable "0";
        }
        if ($http_cookie ~* "_mcnc") {
                    set $no_cache "1";
        }
        fastcgi_no_cache $no_cache;
        fastcgi_cache_bypass $no_cache;
        fastcgi_cache microcache;
        fastcgi_cache_key $server_name|$request_uri;
        fastcgi_cache_valid 404 30m;
        fastcgi_cache_valid 200 10s;
        fastcgi_max_temp_file_size 1M;
        fastcgi_cache_use_stale updating;
        fastcgi_pass 127.0.0.1:9000;
        fastcgi_pass_header Set-Cookie;
        fastcgi_pass_header Cookie;
        fastcgi_ignore_headers Cache-Control Expires Set-Cookie;
        fastcgi_index index.php;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_param  PATH_INFO          $fastcgi_path_info;
        fastcgi_param  PATH_TRANSLATED    $document_root$fastcgi_path_info;
        include fastcgi_params;

my question is, can i use the microcache for multiple domains? e.g. define fastcgi_cache_path /var/cache/nginx levels=1:2 keys_zone=microcache:5m max_size=1000m; in nginx.conf and use microcache for all domain in server? or is cache one for each domain i will host?

sorry, i am not very well versed with nginx. thanks!

JasonPaul

Hi
you can get some help in http://wiki.nginx.org/HttpProxyModule
it says:
proxy_cache zone
...
This directive sets name of zone for caching. The same zone can be used in multiple places.
...

jcaleb

thank you

XSX

the cache just is proxy_cache.

kbeezie

By the way if/set/rewrite will occur before try_files does. As such if you insist on using if blocks, switch back to the older rewrite method instead of try_files in order for them to trigger in the order you expect.

jcaleb

@kbeezie said: By the way if/set/rewrite will occur before try_files does. As such if you insist on using if blocks, switch back to the older rewrite method instead of try_files in order for them to trigger in the order you expect.

How to do that? Or should I remove the try_files? Thanks

bamn

No offense and not trying to tell you to gtfo but sign up on the nginx mailing list and if you have any nginx questions, those folks answer back real quick. Even with bug fixes.. those crazy Russians and their webservers

jcaleb

thanks man!

kbeezie

@jcaleb or use the rewrite method instead of try_files, the nginx wiki has basic coverage on all of those pitfalls/etc.

jcaleb

Thank you @kbeezie