server {
    server_name site1.xxx.ca test.xxx.com;
    access_log /var/www/site1.xxx.ca/logs/access.log;
    error_log /var/www/site1.xxx.ca/logs/error.log;
    root /var/www/site1.xxx.ca/public_html;

    location / {
        index index.html index.htm index.php;
    }

    location ~ \.php$ {
            set $memcached_key $uri;
            memcached_pass     xxx.xxx.xxx.xxx:11211;
            default_type       text/html;
            #error_page         404 @cache_miss;
    }

    #location ~ \.php$ {
    location @cache_miss {
        include /etc/nginx/fastcgi_params;
        fastcgi_pass  127.0.0.1:9000;
        fastcgi_index index.php;
        fastcgi_param SCRIPT_FILENAME /var/www/site1.xxx.ca/public_html$fastcgi_script_name;
    }
}