nginx是否将POST数据发送到@fallback

时间:2016-06-09 06:29:41

标签: nginx http-proxy

我有下一个配置的nginx 1.2.7:

upstream backend_kes {
        ip_hash;
        server 127.0.0.1:9140 max_fails=1 fail_timeout=3s;
}

....

        location = /file/add {
                keepalive_timeout 0;

                set $upload_progress_fallback_code       360;
                set $upload_progress_memcached_servers   "127.0.0.2:11211";
                set $upload_progress_memcached_namespace setup-team.net;
                set $upload_progress_memcached_compress_threshold 10000;

                error_page 360 = @root2;
                perl My::handle;
        }
        location @root2 {
                proxy_pass http://backend_kes;
        }

此处理程序处理文件上载。一切都适用于大文件,但不保存小文件。 tcpdump显示下一个:

08:58:02.470116 IP 127.0.0.1.48396 > 127.0.0.1.9140: Flags [S], seq 1692815180, win 32792, options [mss 16396,sackOK,TS val 3699243831 ecr 0,nop,wscale 7], length 0
    0x0000:  4500 003c b47b 4000 4006 883e 7f00 0001  E..<.{@.@..>....
    0x0010:  7f00 0001 bd0c 23b4 64e6 4f4c 0000 0000  ......#.d.OL....
    0x0020:  a002 8018 fe30 0000 0204 400c 0402 080a  .....0....@.....
    0x0030:  dc7d fb37 0000 0000 0103 0307            .}.7........
08:58:02.470146 IP 127.0.0.1.9140 > 127.0.0.1.48396: Flags [S.], seq 2061404772, ack 1692815181, win 32768, options [mss 16396,sackOK,TS val 3699243831 ecr 3699243831,nop,wscale 7], length 0
    0x0000:  4500 003c 0000 4000 4006 3cba 7f00 0001  E..<..@.@.<.....
    0x0010:  7f00 0001 23b4 bd0c 7ade 8a64 64e6 4f4d  ....#...z..dd.OM
    0x0020:  a012 8000 fe30 0000 0204 400c 0402 080a  .....0....@.....
    0x0030:  dc7d fb37 dc7d fb37 0103 0307            .}.7.}.7....
08:58:02.470165 IP 127.0.0.1.48396 > 127.0.0.1.9140: Flags [.], ack 1, win 257, options [nop,nop,TS val 3699243831 ecr 3699243831], length 0
    0x0000:  4500 0034 b47c 4000 4006 8845 7f00 0001  E..4.|@.@..E....
    0x0010:  7f00 0001 bd0c 23b4 64e6 4f4d 7ade 8a65  ......#.d.OMz..e
    0x0020:  8010 0101 fe28 0000 0101 080a dc7d fb37  .....(.......}.7
    0x0030:  dc7d fb37                                .}.7
08:58:02.471383 IP 127.0.0.1.48396 > 127.0.0.1.9140: Flags [F.], seq 1, ack 1, win 257, options [nop,nop,TS val 3699243832 ecr 3699243831], length 0
    0x0000:  4500 0034 b47d 4000 4006 8844 7f00 0001  E..4.}@.@..D....
    0x0010:  7f00 0001 bd0c 23b4 64e6 4f4d 7ade 8a65  ......#.d.OMz..e
    0x0020:  8011 0101 fe28 0000 0101 080a dc7d fb38  .....(.......}.8
    0x0030:  dc7d fb37                                .}.7
08:58:02.471603 IP 127.0.0.1.9140 > 127.0.0.1.48396: Flags [F.], seq 1, ack 2, win 256, options [nop,nop,TS val 3699243832 ecr 3699243832], length 0
    0x0000:  4500 0034 715d 4000 4006 cb64 7f00 0001  E..4q]@.@..d....
    0x0010:  7f00 0001 23b4 bd0c 7ade 8a65 64e6 4f4e  ....#...z..ed.ON
    0x0020:  8011 0100 fe28 0000 0101 080a dc7d fb38  .....(.......}.8
    0x0030:  dc7d fb38                                .}.8
08:58:02.471641 IP 127.0.0.1.48396 > 127.0.0.1.9140: Flags [.], ack 2, win 257, options [nop,nop,TS val 3699243832 ecr 3699243832], length 0
    0x0000:  4500 0034 b47e 4000 4006 8843 7f00 0001  E..4.~@.@..C....
    0x0010:  7f00 0001 bd0c 23b4 64e6 4f4e 7ade 8a66  ......#.d.ONz..f
    0x0020:  8010 0101 fe28 0000 0101 080a dc7d fb38  .....(.......}.8
    0x0030:  dc7d fb38                                .}.8

正如您所看到的,每个数据包都有length 0。对于大文件&gt; 30kb(我不检查1500字节,3000字节)我看到数据包长度。

这是否是nginx的错误,如果它适合内存(或者可能是一个网络数据包<1500b),它不会发送POST请求主体的内容?

按照设计,我总是从My :: handler

返回后备代码

在此类请求的浏览器中,我看不到响应empty response 在apache日志中,我没有看到POST请求

1 个答案:

答案 0 :(得分:0)

处理程序逻辑中存在错误。如果没有正文,我们应该发送204状态代码而不是200.

如果我们为空体nginx发送200只是关闭连接而浏览器没有显示任何内容。

IMHO。这很令人困惑,在浏览器中看不到任何东西似乎很难看。但在nginx日志中状态良好:

2016/06/08 22:38:49 [debug] 21440#0: *13 HTTP/1.1 200 OK
Server: nginx/1.2.7
Date: Wed, 08 Jun 2016 19:38:49 GMT
Content-Type: application/json
Transfer-Encoding: chunked
Connection: close