blocks|key|653786|text|请确保您的后端不返回Set-Cookie+header。如果Nginx看到它，它会禁用缓存。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|653787|如果这是你的情况，最好的选择是修复你的后端。当无法修复后端时，可以指示Nginx忽略Set-Cookie报头|653788|proxy_ignore_headers+"Set-Cookie";
proxy_hide_header+"Set-Cookie";|code-block|syntax|javascript|653789|请参阅documentation|653790|proxy_ignore_header将确保缓存发生。proxy_hide_header将确保Cookie有效负载不包括在缓存的有效负载中。这对于避免通过NGINX缓存泄漏cookie非常重要。|653791|entityMap|0|LINK|mutability|MUTABLE|url|http://wiki.nginx.org/HttpProxyModule#proxy_ignore_headers^0|A|A|0|16|A|0|0|3|D|0|0|0|J|R|H|0^^$0|@$1|2|3|4|5|6|7|Y|8|@$9|Z|A|10|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|11|8|@$9|12|A|13|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|14|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|15|8|@]|D|@$9|16|A|17|1|18]]|E|$]]|$1|O|3|P|5|6|7|19|8|@$9|1A|A|1B|B|C]|$9|1C|A|1D|B|C]]|D|@]|E|$]]|$1|Q|3|-4|5|6|7|1E|8|@]|D|@]|E|$]]]|R|$S|$5|T|U|V|E|$W|X]]]]

Make sure your backend does not return <code>Set-Cookie</code> header. If Nginx sees it, it disables caching.

If this is your case, the best option is to fix your backend. When fixing the backend is not an option, it's possible to instruct Nginx to ignore <code>Set-Cookie</code> header

<pre><code>proxy_ignore_headers "Set-Cookie";
proxy_hide_header "Set-Cookie";
</code></pre>

See the <a href="http://wiki.nginx.org/HttpProxyModule#proxy_ignore_headers" rel="noreferrer">documentation</a>

<code>proxy_ignore_header</code> will ensure that the caching takes place. <code>proxy_hide_header</code> will ensure the Cookie payload is not included in the cached payload. This is important to avoid leaking cookies via the NGINX cache.

blocks|key|653864|text|我想补充的是，多个配置选项和组合可以禁用Nginx中的代理缓存。不幸的是，这方面的文档很少。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|653865|在我的配置中，我设置了proxy_buffering+on，它按照预期启用了缓存。|offset|length|style|CODE|653866|entityMap^0|0|B|I|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@$D|L|E|M|F|G]]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

I would like to add that multiple configuration options and combinations can disable proxy caching in Nginx. Unfortunately this is poorly documented.

In my configuration I set <code>proxy_buffering on</code> and it enabled caching as expected.

blocks|key|439487|text|值得注意的是，我的经验是nginx并不总是缓存您告诉它的内容。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|439488|例如，在centos7上，使用配置选项|439489|proxy_cache_path+/tmp/my_nginx_cache+levels=1:2+keys_zone=my_zone:10m+inactive=24h+max_size=1g;|code-block|syntax|javascript|439490|nginx实际上将文件缓存在以下位置：|439491|/tmp/systemd-private-phJlfG/tmp/my_nginx_cache|439492|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

For what it's worth, my experience is that nginx does not always cache things where you tell it to.

For example, on centos7, with the configuration option

<pre><code>proxy_cache_path /tmp/my_nginx_cache levels=1:2 keys_zone=my_zone:10m inactive=24h max_size=1g;
</code></pre>

nginx actually caches the files at:

<pre><code>/tmp/systemd-private-phJlfG/tmp/my_nginx_cache
</code></pre>

blocks|key|439607|text|经过多次回答和评论，我发现这个配置终于起作用了：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|439608|10m+=+10mb密钥缓存，max_size+to+2GB，inactive=120m+(120分钟不活动后从源刷新)，use_temp_path=off+(减少io)|offset|length|style|CODE|439609|proxy_cache_valid+-+200和302的缓存状态60分钟|439610|proxy_cache_path+/tmp/cache+levels=1:2+keys_zone=default_cache:10m+max_size=2g
+++++++++++++++++inactive=120m+use_temp_path=off;
proxy_cache_key+"$scheme$request_method$host$request_uri";
proxy_cache_valid+200+302+60m;

server+{
++++listen+++++++80;
++++server_name++example.com;

++++#+https://www.nginx.com/blog/nginx-caching-guide
++++location+/+{
++++++++proxy_cache+default_cache;
++++++++proxy_buffering+on;
++++++++proxy_ignore_headers+Expires;
++++++++proxy_ignore_headers+X-Accel-Expires;
++++++++proxy_ignore_headers+Cache-Control;
++++++++proxy_ignore_headers+Set-Cookie;

++++++++proxy_hide_header+X-Accel-Expires;
++++++++proxy_hide_header+Expires;
++++++++proxy_hide_header+Cache-Control;
++++++++proxy_hide_header+Pragma;

++++++++add_header+X-Proxy-Cache+$upstream_cache_status;
++++++++proxy_pass+http://ip-of-host:80;

++++++++#set++++++++++++$memcached_key+"$uri?$args";
++++++++#memcached_pass+127.0.0.1:11211;
++++++++#+error_page+++++404+502+504+=+@fallback;
++++}
}|code-block|syntax|javascript|439611|entityMap^0|0|0|3|6|4|F|8|R|3|V|D|1P|H|0|0|H|K|3|O|3|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@$D|S|E|T|F|G]|$D|U|E|V|F|G]|$D|W|E|X|F|G]|$D|Y|E|Z|F|G]|$D|10|E|11|F|G]|$D|12|E|13|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|14|8|@$D|15|E|16|F|G]|$D|17|E|18|F|G]|$D|19|E|1A|F|G]]|9|@]|A|$]]|$1|J|3|K|5|L|7|1B|8|@]|9|@]|A|$M|N]]|$1|O|3|-4|5|6|7|1C|8|@]|9|@]|A|$]]]|P|$]]

after going through multiple answers and comments, i found this configuration finally works:

<code>10m</code> = <code>10mb</code> key cache, <code>max_size</code> to <code>2GB</code>, <code>inactive=120m</code> (refresh from source after 120minutes of inactive), <code>use_temp_path=off</code> (to reduce io)

<code>proxy_cache_valid</code> - cache status of <code>200</code> and <code>302</code> for 60 minutes 

<pre><code>proxy_cache_path /tmp/cache levels=1:2 keys_zone=default_cache:10m max_size=2g
 inactive=120m use_temp_path=off;
proxy_cache_key "$scheme$request_method$host$request_uri";
proxy_cache_valid 200 302 60m;

server {
 listen 80;
 server_name example.com;

 # https://www.nginx.com/blog/nginx-caching-guide
 location / {
 proxy_cache default_cache;
 proxy_buffering on;
 proxy_ignore_headers Expires;
 proxy_ignore_headers X-Accel-Expires;
 proxy_ignore_headers Cache-Control;
 proxy_ignore_headers Set-Cookie;

 proxy_hide_header X-Accel-Expires;
 proxy_hide_header Expires;
 proxy_hide_header Cache-Control;
 proxy_hide_header Pragma;

 add_header X-Proxy-Cache $upstream_cache_status;
 proxy_pass http://ip-of-host:80;

 #set $memcached_key "$uri?$args";
 #memcached_pass 127.0.0.1:11211;
 # error_page 404 502 504 = @fallback;
 }
}
</code></pre>

I'm trying to cache static content which are basically inside the paths below in virtual server configuration. For some reason files are not being cached. I see several folders and files inside the cache dir but its always something like 20mb no higher no lower. If it were caching images for example would take at least 500mb of space. 

Here is the nginx.conf cache part:

<pre><code>** nginx.conf **
proxy_cache_path /usr/share/nginx/www/cache levels=1:2 keys_zone=static$
proxy_temp_path /usr/share/nginx/www/tmp;
proxy_read_timeout 300s;
</code></pre>

Heres the default virtual server.

<pre><code>**sites-available/default**
server {
 listen 80; 

 root /usr/share/nginx/www;
 server_name myserver;
 access_log /var/log/nginx/myserver.log main;
 error_log /var/log/nginx/error.log;

 proxy_set_header Host $host;
 proxy_set_header X-Real-IP $remote_addr;
 proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

 location ~* ^/(thumbs|images|css|js|pubimg)/(.*)$ {
 proxy_pass http://backend;
 proxy_cache static;
 proxy_cache_min_uses 1;
 proxy_cache_valid 200 301 302 120m;
 proxy_cache_valid 404 1m;
 expires max;
 }

 location / {
 proxy_pass http://backend;
 }
}
</code></pre>

nginx as cache proxy not caching anything

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我正在尝试缓存静态内容，这些内容基本上位于虚拟服务器配置中的以下路径中。由于某些原因，文件不会被缓存。我在缓存目录中看到了几个文件夹和文件，但它总是像20mb一样，不高也不低。例如，如果它缓存图像，将至少占用500mb的空间。下面是nginx.conf缓存部分：** nginx.conf **proxy_cache_p...

问nginx作为缓存代理不缓存任何内容
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