无法获得nginxcaching的工作

我主要是简单的nginxconfiguration。 我无法caching工作

http { ... server_tokens off; proxy_hide_header X-Powered-By; fastcgi_hide_header X-Powered-By; client_header_timeout 1024; client_body_timeout 1024; send_timeout 9000; proxy_read_timeout 4000; connection_pool_size 256; client_header_buffer_size 1k; client_max_body_size 10m; large_client_header_buffers 2 4k; request_pool_size 4k; proxy_buffers 8 32k; proxy_buffering off; proxy_buffer_size 32k; server_names_hash_bucket_size 64; output_buffers 3 16k; postpone_output 1460; sendfile off; tcp_nopush on; tcp_nodelay on; keepalive_timeout 30 100; ignore_invalid_headers off; log_format custom '$host $uri $remote_addr [$time_local] $status $bytes_sent [$request]'; proxy_cache_path /var/cache/nginx/cache levels=1:2 keys_zone=melco:500m inactive=15m max_size=1000m; proxy_temp_path /var/cache/nginx/temp; ... server { ..... location = /rss.php { access_log /var/log/nginx/rss.php.log custom; proxy_cache melco; proxy_cache_key "$host$request_uri$args"; proxy_ignore_headers "Cache-Control" "Expires"; proxy_cache_min_uses 1; proxy_cache_valid 200 302 304 5m; proxy_cache_use_stale http_502 http_503 http_504; proxy_hide_header Set-Cookie; proxy_pass http://192.168.10.102; proxy_redirect off; proxy_set_header X-Forwarded-For $remote_addr; proxy_set_header Host $host; } ... 

标题是：

 # curl -I http://mysite.com/rss.php HTTP/1.1 200 OK Server: nginx Date: Sun, 10 Apr 2011 15:45:54 GMT Content-Type: text/xml; charset=windows-1251 Connection: keep-alive Keep-Alive: timeout=100 X-Powered-By: PHP/5.3.3-7+squeeze1 Pragma: no-cache Generator: Nucleus CMS Etag: "f263dc8eb016ffcb6d34b317b8d5a315" Vary: Accept-Encoding 

我可以在/var/log/nginx/rss.php.log中看到请求，但/ var / cache / nginx / cache始终是空的/ var / cache / nginx / cache上的权限设置为www-data：www-data（nginx用户：组）。 任何ides？ 另外如何在访问日志中看到请求是否来自caching？

PS nginx版本：

• Nginx的.conf和简单的math
• nginx忽略我的包含指令？
• 为什么nginx gzip_http_version默认为HTTP 1.1
• nginx gzip启用，但不是gzip
• cachingPHP页面，Varnish，nginx，其他？

 # nginx -V nginx version: nginx/0.7.67 TLS SNI support enabled configure arguments: --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-client-body-temp-path=/var/lib/nginx/body --http-fastcgi-temp-path=/var/lib/nginx/fastcgi --http-log-path=/var/log/nginx/access.log --http-proxy-temp-path=/var/lib/nginx/proxy --lock-path=/var/lock/nginx.lock --pid-path=/var/run/nginx.pid --with-debug --with-http_dav_module --with-http_flv_module --with-http_geoip_module --with-http_gzip_static_module --with-http_realip_module --with-http_stub_status_module --with-http_ssl_module --with-http_sub_module --with-ipv6 --with-mail --with-mail_ssl_module --add-module=/tmp/buildd/nginx-0.7.67/modules/nginx-upstream-fair 

 proxy_buffering off;