# Nginx proxy\_pass file upload 500 "Internal Server Error"

**URL:** <https://www.ruby-forum.com/t/nginx-proxy-pass-file-upload-500-internal-server-error/246543>\
**Category:** NGINX\
**Created:** [September 13, 2012, 3:10pm UTC](https://www.ruby-forum.com/t/nginx-proxy-pass-file-upload-500-internal-server-error/246543 "2012-09-13T15:10:10Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![casper\_the\_ghost](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/58956e/32.png) [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\
**Post date:** [September 13, 2012, 3:10pm UTC](https://www.ruby-forum.com/t/nginx-proxy-pass-file-upload-500-internal-server-error/246543/1 "2012-09-13T15:10:10Z")

</div>

I’ve a problem using nginx as reverse proxy.  
I sent a POST request to nginx for file upload.  
My backend is an apache2 web server.  
My backend receive correctly request and save correctly uploaded file.  
My frontend, nginx, give back a 500, Internal server error response.

This is my nginx.conf

user www-data;  
worker\_processes 1;

error\_log /var/log/nginx/error.log;  
pid /var/run/nginx.pid;

events {  
worker\_connections 1024;  
# multi\_accept on;  
}

http {  
include /etc/nginx/mime.types;

```
access_log /var/log/nginx/access.log;

sendfile on;
tcp_nopush on;

#keepalive_timeout 0;
tcp_nodelay on;
client_max_body_size 50m;
#client_body_buffer_size 2m;

gzip on;
gzip_disable "MSIE [1-6]\.(?!.*SV1)";

include /etc/nginx/conf.d/*.conf;
include /etc/nginx/sites-enabled/*;

```

}

This is my /etc/nginx/sites-enabled/default config:  
server  
{

listen 80; ## listen for ipv4  
listen [::]:80 default ipv6only=on; ## listen for ipv6

server\_name megasp.sigmagroup.it;

access\_log /var/log/nginx/localhost.access.log;  
error\_log /var/log/nginx/localhost.error.log debug;

location ~ .\*$  
{  
proxy\_pass [http://megasp.sigmagroup.it](http://megasp.sigmagroup.it);  
proxy\_read\_timeout 3600;  
}

}

This is nginx error log with debug info:

2012/09/13 14:46:52 [debug] 9004#0: accept on 0.0.0.0:80, ready: 0  
2012/09/13 14:46:52 [debug] 9004#0: malloc: 09778E58:256  
2012/09/13 14:46:52 [debug] 9004#0: \*7 accept: 192.168.0.37 fd:3  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer add: 3:  
60000:3215709281  
2012/09/13 14:46:52 [debug] 9004#0: \*7 epoll add event: fd:3 op:1  
ev:80000001  
2012/09/13 14:46:52 [debug] 9004#0: \*7 malloc: 09781310:676  
2012/09/13 14:46:52 [debug] 9004#0: \*7 malloc: 097815B8:1024  
2012/09/13 14:46:52 [debug] 9004#0: \*7 malloc: 0977AB08:4096  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http process request line  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 1024 of 1024  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http request line: “POST  
/Scansioni/ImmagineAcquiredUpload HTTP/1.1”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http uri:  
“/Scansioni/ImmagineAcquiredUpload”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http args: “”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http exten: “”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http process request header line  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http header: “Content-Length:  
56242”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http header: “Content-Type:  
multipart/form-data; boundary=xQyrNf60g\_tOu8mL4dEi4TmTg7VhAO”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http header: “Host:  
192.168.0.204”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http header: “Connection:  
Keep-Alive”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http header: “User-Agent:  
Apache-HttpClient/4.2.1 (java 1.5)”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http header done  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer del: 3: 3215709281  
2012/09/13 14:46:52 [debug] 9004#0: \*7 generic phase: 0  
2012/09/13 14:46:52 [debug] 9004#0: \*7 add cleanup: 0977B010  
2012/09/13 14:46:52 [debug] 9004#0: \*7 generic phase: 1  
2012/09/13 14:46:52 [debug] 9004#0: _7 test location: ~ "._$"  
2012/09/13 14:46:52 [debug] 9004#0: _7 using configuration "._$"  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http cl:56242 max:52428800  
2012/09/13 14:46:52 [debug] 9004#0: \*7 generic phase: 3  
2012/09/13 14:46:52 [debug] 9004#0: \*7 post rewrite phase: 4  
2012/09/13 14:46:52 [debug] 9004#0: \*7 generic phase: 5  
2012/09/13 14:46:52 [debug] 9004#0: \*7 add cleanup: 0977B02C  
2012/09/13 14:46:52 [debug] 9004#0: \*7 generic phase: 6  
2012/09/13 14:46:52 [debug] 9004#0: \*7 generic phase: 7  
2012/09/13 14:46:52 [debug] 9004#0: \*7 access phase: 8  
2012/09/13 14:46:52 [debug] 9004#0: \*7 access phase: 9  
2012/09/13 14:46:52 [debug] 9004#0: \*7 post access phase: 10  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body preread  
781  
2012/09/13 14:46:52 [debug] 9004#0: \*7 malloc: 09784088:8192  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http read client request body  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 5249 of 8192  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv  
5249  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
50212  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 -1 of 2943  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv() not ready (11: Resource  
temporarily unavailable)  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv -2  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
50212  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer add: 3:  
60000:3215709283  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http run request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http read client request body  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 1460 of 2943  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv  
1460  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
48752  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 -1 of 1483  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv() not ready (11: Resource  
temporarily unavailable)  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv -2  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
48752  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer: 3, old: 3215709283,  
new:  
3215709284  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http run request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http read client request body  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 1460 of 1483  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv  
1460  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
47292  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 -1 of 23  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv() not ready (11: Resource  
temporarily unavailable)  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv -2  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
47292  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer: 3, old: 3215709283,  
new:  
3215709284  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http run request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http read client request body  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 23 of 23  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv 23  
2012/09/13 14:46:52 [debug] 9004#0: \*7 add cleanup: 0977B414  
2012/09/13 14:46:52 [debug] 9004#0: \*7 hashed path:  
/var/lib/nginx/body/0000000004  
2012/09/13 14:46:52 [debug] 9004#0: \*7 temp fd:4  
2012/09/13 14:46:52 [warn] 9004#0: \*7 a client request body is buffered  
to a  
temporary file /var/lib/nginx/body/0000000004, client: 192.168.0.37,  
server:  
megasp.sigmagroup.it, request: “POST /Scansioni/ImmagineAcquiredUpload  
HTTP/1.1”, host: “192.168.0.204”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 write: 4, 09784088, 8192, 0  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 2897 of 8192  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv  
2897  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
44372  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 -1 of 5295  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv() not ready (11: Resource  
temporarily unavailable)  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv -2  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
44372  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer: 3, old: 3215709283,  
new:  
3215709284  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http run request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http read client request body  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 1460 of 5295  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv  
1460  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
42912  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 -1 of 3835  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv() not ready (11: Resource  
temporarily unavailable)  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv -2  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
42912  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer: 3, old: 3215709283,  
new:  
3215709285  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http run request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http read client request body  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 1460 of 3835  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv  
1460  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
41452  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 -1 of 2375  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv() not ready (11: Resource  
temporarily unavailable)  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv -2  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
41452  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer: 3, old: 3215709283,  
new:  
3215709285  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http run request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http read client request body  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 1460 of 2375  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv  
1460  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
39992  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 -1 of 915  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv() not ready (11: Resource  
temporarily unavailable)  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv -2  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
39992  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer: 3, old: 3215709283,  
new:  
3215709285  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http run request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http read client request body  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 915 of 915  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv 915  
2012/09/13 14:46:52 [debug] 9004#0: \*7 write: 4, 09784088, 8192, 8192  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 545 of 8192  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv 545  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
38532  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 1460 of 7647  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv  
1460  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
37072  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 -1 of 6187  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv() not ready (11: Resource  
temporarily unavailable)  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv -2  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
37072  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer: 3, old: 3215709283,  
new:  
3215709285  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http run request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http read client request body  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 1500 of 6187  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv  
1500  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
35572  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 1460 of 4687  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv  
1460  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
34112  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 -1 of 3227  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv() not ready (11: Resource  
temporarily unavailable)  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv -2  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
34112  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer: 3, old: 3215709283,  
new:  
3215709285  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http run request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http read client request body  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 1460 of 3227  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv  
1460  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
32652  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 1176 of 1767  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv  
1176  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
31476  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 -1 of 591  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv() not ready (11: Resource  
temporarily unavailable)  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv -2  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
31476  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer: 3, old: 3215709283,  
new:  
3215709286  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http run request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http read client request body  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 591 of 591  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv 591  
2012/09/13 14:46:52 [debug] 9004#0: \*7 write: 4, 09784088, 8192, 16384  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 869 of 8192  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv 869  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
30016  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 1460 of 7323  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv  
1460  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
28556  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 -1 of 5863  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv() not ready (11: Resource  
temporarily unavailable)  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv -2  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
28556  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer: 3, old: 3215709283,  
new:  
3215709286  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http run request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http read client request body  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 1176 of 5863  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv  
1176  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
27380  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 -1 of 4687  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv() not ready (11: Resource  
temporarily unavailable)  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv -2  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
27380  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer: 3, old: 3215709283,  
new:  
3215709286  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http run request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http read client request body  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 1460 of 4687  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv  
1460  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
25920  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 -1 of 3227  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv() not ready (11: Resource  
temporarily unavailable)  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv -2  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
25920  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer: 3, old: 3215709283,  
new:  
3215709287  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http run request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http read client request body  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 1460 of 3227  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv  
1460  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
24460  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 -1 of 1767  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv() not ready (11: Resource  
temporarily unavailable)  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv -2  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
24460  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer: 3, old: 3215709283,  
new:  
3215709287  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http run request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http read client request body  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 1176 of 1767  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv  
1176  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
23284  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 -1 of 591  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv() not ready (11: Resource  
temporarily unavailable)  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv -2  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
23284  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer: 3, old: 3215709283,  
new:  
3215709287  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http run request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http read client request body  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 591 of 591  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv 591  
2012/09/13 14:46:52 [debug] 9004#0: \*7 write: 4, 09784088, 8192, 24576  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 869 of 8192  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv 869  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
21824  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 -1 of 7323  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv() not ready (11: Resource  
temporarily unavailable)  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv -2  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
21824  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer: 3, old: 3215709283,  
new:  
3215709287  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http run request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http read client request body  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 1460 of 7323  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv  
1460  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
20364  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 -1 of 5863  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv() not ready (11: Resource  
temporarily unavailable)  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv -2  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
20364  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer: 3, old: 3215709283,  
new:  
3215709287  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http run request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http read client request body  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 1176 of 5863  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv  
1176  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
19188  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 -1 of 4687  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv() not ready (11: Resource  
temporarily unavailable)  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv -2  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
19188  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer: 3, old: 3215709283,  
new:  
3215709287  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http run request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http read client request body  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 1460 of 4687  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv  
1460  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
17728  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 -1 of 3227  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv() not ready (11: Resource  
temporarily unavailable)  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv -2  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
17728  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer: 3, old: 3215709283,  
new:  
3215709287  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http run request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http read client request body  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 1460 of 3227  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv  
1460  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
16268  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 -1 of 1767  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv() not ready (11: Resource  
temporarily unavailable)  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv -2  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
16268  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer: 3, old: 3215709283,  
new:  
3215709287  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http run request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http read client request body  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 1176 of 1767  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv  
1176  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
15092  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 -1 of 591  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv() not ready (11: Resource  
temporarily unavailable)  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv -2  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
15092  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer: 3, old: 3215709283,  
new:  
3215709287  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http run request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http read client request body  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 591 of 591  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv 591  
2012/09/13 14:46:52 [debug] 9004#0: \*7 write: 4, 09784088, 8192, 32768  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 869 of 8192  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv 869  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
13632  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 -1 of 7323  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv() not ready (11: Resource  
temporarily unavailable)  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv -2  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
13632  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer: 3, old: 3215709283,  
new:  
3215709288  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http run request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http read client request body  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 1460 of 7323  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv  
1460  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
12172  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 -1 of 5863  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv() not ready (11: Resource  
temporarily unavailable)  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv -2  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
12172  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer: 3, old: 3215709283,  
new:  
3215709288  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http run request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http read client request body  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 1176 of 5863  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv  
1176  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
10996  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 -1 of 4687  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv() not ready (11: Resource  
temporarily unavailable)  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv -2  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
10996  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer: 3, old: 3215709283,  
new:  
3215709288  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http run request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http read client request body  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 1460 of 4687  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv  
1460  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
9536  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 -1 of 3227  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv() not ready (11: Resource  
temporarily unavailable)  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv -2  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
9536  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer: 3, old: 3215709283,  
new:  
3215709288  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http run request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http read client request body  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 1460 of 3227  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv  
1460  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
8076  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 -1 of 1767  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv() not ready (11: Resource  
temporarily unavailable)  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv -2  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
8076  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer: 3, old: 3215709283,  
new:  
3215709288  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http run request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http read client request body  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 1176 of 1767  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv  
1176  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
6900  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 -1 of 591  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv() not ready (11: Resource  
temporarily unavailable)  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv -2  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
6900  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer: 3, old: 3215709283,  
new:  
3215709288  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http run request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http read client request body  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 591 of 591  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv 591  
2012/09/13 14:46:52 [debug] 9004#0: \*7 write: 4, 09784088, 8192, 40960  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 869 of 6309  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv 869  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
5440  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 -1 of 5440  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv() not ready (11: Resource  
temporarily unavailable)  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv -2  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
5440  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer: 3, old: 3215709283,  
new:  
3215709288  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http run request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http read client request body  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 1460 of 5440  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv  
1460  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
3980  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 -1 of 3980  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv() not ready (11: Resource  
temporarily unavailable)  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv -2  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
3980  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer: 3, old: 3215709283,  
new:  
3215709289  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http run request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http read client request body  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 1176 of 3980  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv  
1176  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
2804  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 -1 of 2804  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv() not ready (11: Resource  
temporarily unavailable)  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv -2  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest  
2804  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer: 3, old: 3215709283,  
new:  
3215709289  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http run request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http read client request body  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 2035 of 2804  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv  
2035  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest 769  
2012/09/13 14:46:52 [debug] 9004#0: \*7 recv: fd:3 769 of 769  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body recv 769  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http client request body rest 0  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer del: 3: 3215709283  
2012/09/13 14:46:52 [debug] 9004#0: \*7 write: 4, 09784088, 6309, 49152  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http init upstream, client timer:  
0  
2012/09/13 14:46:52 [debug] 9004#0: \*7 epoll add event: fd:3 op:3  
ev:80000005  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http script copy: "Host: "  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http script var:  
“megasp.sigmagroup.it”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http script copy: "  
"  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http script copy: "Connection:  
close  
"  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http proxy header:  
“Content-Length:  
56242”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http proxy header: “Content-Type:  
multipart/form-data; boundary=xQyrNf60g\_tOu8mL4dEi4TmTg7VhAO”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http proxy header: “User-Agent:  
Apache-HttpClient/4.2.1 (java 1.5)”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http proxy header:  
"POST /Scansioni/ImmagineAcquiredUpload HTTP/1.0  
Host: megasp.sigmagroup.it  
Connection: close  
Content-Length: 56242  
Content-Type: multipart/form-data;  
boundary=xQyrNf60g\_tOu8mL4dEi4TmTg7VhAO  
User-Agent: Apache-HttpClient/4.2.1 (java 1.5)

"  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http cleanup add: 0977B640  
2012/09/13 14:46:52 [debug] 9004#0: \*7 get rr peer, try: 1  
2012/09/13 14:46:52 [debug] 9004#0: \*7 socket 7  
2012/09/13 14:46:52 [debug] 9004#0: \*7 epoll add connection: fd:7  
ev:80000005  
2012/09/13 14:46:52 [debug] 9004#0: \*7 connect to 192.168.0.206:80, fd:7  
#8  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http upstream connect: -2  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer add: 7:  
60000:3215709289  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http run request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http upstream check client, write  
event:1, “/Scansioni/ImmagineAcquiredUpload”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http upstream recv(): -1 (11:  
Resource temporarily unavailable)  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http upstream request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http upstream send request  
handler  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http upstream send request  
2012/09/13 14:46:52 [debug] 9004#0: \*7 read: 4, 09784088, 8192, 0  
2012/09/13 14:46:52 [debug] 9004#0: \*7 chain writer buf fl:0 s:245  
2012/09/13 14:46:52 [debug] 9004#0: \*7 chain writer buf fl:0 s:781  
2012/09/13 14:46:52 [debug] 9004#0: \*7 chain writer buf fl:0 s:8192  
2012/09/13 14:46:52 [debug] 9004#0: \*7 chain writer in: 0977B67C  
2012/09/13 14:46:52 [debug] 9004#0: \*7 writev: 9218  
2012/09/13 14:46:52 [debug] 9004#0: \*7 chain writer out: 00000000  
2012/09/13 14:46:52 [debug] 9004#0: \*7 read: 4, 09784088, 8192, 8192  
2012/09/13 14:46:52 [debug] 9004#0: \*7 chain writer buf fl:0 s:8192  
2012/09/13 14:46:52 [debug] 9004#0: \*7 chain writer in: 0977B694  
2012/09/13 14:46:52 [debug] 9004#0: \*7 writev: 6710  
2012/09/13 14:46:52 [debug] 9004#0: \*7 chain writer out: 0977B694  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer del: 7: 3215709289  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer add: 7:  
60000:3215709289  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http upstream request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http upstream send request  
handler  
2012/09/13 14:46:52 [debug] 9004#0: \*7 http upstream send request  
2012/09/13 14:46:52 [debug] 9004#0: \*7 chain writer in: 0977B694  
2012/09/13 14:46:52 [debug] 9004#0: \*7 writev: 1482  
2012/09/13 14:46:52 [debug] 9004#0: \*7 chain writer out: 00000000  
2012/09/13 14:46:52 [debug] 9004#0: \*7 read: 4, 09784088, 8192, 16384  
2012/09/13 14:46:52 [debug] 9004#0: \*7 chain writer buf fl:0 s:8192  
2012/09/13 14:46:52 [debug] 9004#0: \*7 chain writer in: 0977B69C  
2012/09/13 14:46:52 [debug] 9004#0: \*7 writev: 8192  
2012/09/13 14:46:52 [debug] 9004#0: \*7 chain writer out: 00000000  
2012/09/13 14:46:52 [debug] 9004#0: \*7 read: 4, 09784088, 8192, 24576  
2012/09/13 14:46:52 [debug] 9004#0: \*7 chain writer buf fl:0 s:8192  
2012/09/13 14:46:52 [debug] 9004#0: \*7 chain writer in: 0977B6A4  
2012/09/13 14:46:52 [debug] 9004#0: \*7 writev: 8192  
2012/09/13 14:46:52 [debug] 9004#0: \*7 chain writer out: 00000000  
2012/09/13 14:46:52 [debug] 9004#0: \*7 read: 4, 09784088, 8192, 32768  
2012/09/13 14:46:52 [debug] 9004#0: \*7 chain writer buf fl:0 s:8192  
2012/09/13 14:46:52 [debug] 9004#0: \*7 chain writer in: 0977B6AC  
2012/09/13 14:46:52 [debug] 9004#0: \*7 writev: 8192  
2012/09/13 14:46:52 [debug] 9004#0: \*7 chain writer out: 00000000  
2012/09/13 14:46:52 [debug] 9004#0: \*7 read: 4, 09784088, 8192, 40960  
2012/09/13 14:46:52 [debug] 9004#0: \*7 chain writer buf fl:0 s:8192  
2012/09/13 14:46:52 [debug] 9004#0: \*7 chain writer in: 0977B6B4  
2012/09/13 14:46:52 [debug] 9004#0: \*7 writev: 8192  
2012/09/13 14:46:52 [debug] 9004#0: \*7 chain writer out: 00000000  
2012/09/13 14:46:52 [debug] 9004#0: \*7 read: 4, 09784088, 6309, 49152  
2012/09/13 14:46:52 [debug] 9004#0: \*7 chain writer buf fl:1 s:6309  
2012/09/13 14:46:52 [debug] 9004#0: \*7 chain writer in: 0977B6BC  
2012/09/13 14:46:52 [debug] 9004#0: \*7 writev: 6309  
2012/09/13 14:46:52 [debug] 9004#0: \*7 chain writer out: 00000000  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer del: 7: 3215709289  
2012/09/13 14:46:52 [debug] 9004#0: \*7 event timer add: 7:  
3600000:3219249290  
2012/09/13 14:46:53 [debug] 9004#0: \*7 http upstream request:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:53 [debug] 9004#0: \*7 http upstream process header  
2012/09/13 14:46:53 [debug] 9004#0: \*7 malloc: 0977BB10:4096  
2012/09/13 14:46:53 [debug] 9004#0: \*7 recv: fd:7 386 of 4096  
2012/09/13 14:46:53 [debug] 9004#0: \*7 http proxy status 500 “500  
Internal  
Server Error”  
2012/09/13 14:46:53 [debug] 9004#0: \*7 http proxy header: “Date: Thu, 13  
Sep  
2012 12:49:09 GMT”  
2012/09/13 14:46:53 [debug] 9004#0: \*7 http proxy header: “Server:  
Apache/2.2.16 (Debian)”  
2012/09/13 14:46:53 [debug] 9004#0: \*7 http proxy header:  
“X-AspNetMvc-Version: 3.0”  
2012/09/13 14:46:53 [debug] 9004#0: \*7 http proxy header:  
“X-AspNet-Version:  
4.0.30319”  
2012/09/13 14:46:53 [debug] 9004#0: \*7 http proxy header:  
“Content-Length:  
48”  
2012/09/13 14:46:53 [debug] 9004#0: \*7 http proxy header:  
“Cache-Control:  
private”  
2012/09/13 14:46:53 [debug] 9004#0: \*7 http proxy header: “Set-Cookie:  
ASP.NET\_SessionId=0DC6CD8C829815B288180C94; path=/”  
2012/09/13 14:46:53 [debug] 9004#0: \*7 http proxy header: “Vary:  
Accept-Encoding”  
2012/09/13 14:46:53 [debug] 9004#0: \*7 http proxy header: “Connection:  
close”  
2012/09/13 14:46:53 [debug] 9004#0: \*7 http proxy header: “Content-Type:  
plain/text”  
2012/09/13 14:46:53 [debug] 9004#0: \*7 http proxy header done  
2012/09/13 14:46:53 [debug] 9004#0: \*7 malloc: 09786090:4096  
2012/09/13 14:46:53 [debug] 9004#0: \*7 HTTP/1.1 500 Internal Server  
Error  
Server: nginx/0.7.67  
Date: Thu, 13 Sep 2012 12:46:53 GMT  
Content-Type: plain/text  
Connection: keep-alive  
X-AspNetMvc-Version: 3.0  
X-AspNet-Version: 4.0.30319  
Content-Length: 48  
Cache-Control: private  
Set-Cookie: ASP.NET\_SessionId=0DC6CD8C829815B288180C94; path=/  
Vary: Accept-Encoding

2012/09/13 14:46:53 [debug] 9004#0: \*7 write new buf t:1 f:0 097860A0,  
pos  
097860A0, size: 333 file: 0, size: 0  
2012/09/13 14:46:53 [debug] 9004#0: \*7 http write filter: l:0 f:0 s:333  
2012/09/13 14:46:53 [debug] 9004#0: \*7 file cleanup: fd:4  
2012/09/13 14:46:53 [debug] 9004#0: \*7 http cacheable: 0  
2012/09/13 14:46:53 [debug] 9004#0: \*7 http upstream process upstream  
2012/09/13 14:46:53 [debug] 9004#0: \*7 pipe read upstream: 1  
2012/09/13 14:46:53 [debug] 9004#0: \*7 pipe preread: 48  
2012/09/13 14:46:53 [debug] 9004#0: \*7 readv: 1:3710  
2012/09/13 14:46:53 [debug] 9004#0: \*7 pipe recv chain: 0  
2012/09/13 14:46:53 [debug] 9004#0: \*7 pipe buf free s:0 t:1 f:0  
0977BB10,  
pos 0977BC62, size: 48 file: 0, size: 0  
2012/09/13 14:46:53 [debug] 9004#0: \*7 input buf #0  
2012/09/13 14:46:53 [debug] 9004#0: \*7 pipe write downstream: 1  
2012/09/13 14:46:53 [debug] 9004#0: \*7 pipe write downstream flush in  
2012/09/13 14:46:53 [debug] 9004#0: \*7 http output filter  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:53 [debug] 9004#0: \*7 copy filter:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:53 [debug] 9004#0: \*7 http postpone filter  
“/Scansioni/ImmagineAcquiredUpload?” 0977BAF0  
2012/09/13 14:46:53 [debug] 9004#0: \*7 write old buf t:1 f:0 097860A0,  
pos  
097860A0, size: 333 file: 0, size: 0  
2012/09/13 14:46:53 [debug] 9004#0: \*7 write new buf t:1 f:0 0977BB10,  
pos  
0977BC62, size: 48 file: 0, size: 0  
2012/09/13 14:46:53 [debug] 9004#0: \*7 http write filter: l:0 f:0 s:381  
2012/09/13 14:46:53 [debug] 9004#0: \*7 copy filter: 0  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:53 [debug] 9004#0: \*7 pipe write downstream done  
2012/09/13 14:46:53 [debug] 9004#0: \*7 event timer: 7, old: 3219249290,  
new:  
3219249382  
2012/09/13 14:46:53 [debug] 9004#0: \*7 http upstream exit: 00000000  
2012/09/13 14:46:53 [debug] 9004#0: \*7 finalize http upstream request: 0  
2012/09/13 14:46:53 [debug] 9004#0: \*7 finalize http proxy request  
2012/09/13 14:46:53 [debug] 9004#0: \*7 free rr peer 1 0  
2012/09/13 14:46:53 [debug] 9004#0: \*7 close http upstream connection: 7  
2012/09/13 14:46:53 [debug] 9004#0: \*7 event timer del: 7: 3219249290  
2012/09/13 14:46:53 [debug] 9004#0: \*7 http upstream temp fd: -1  
2012/09/13 14:46:53 [debug] 9004#0: \*7 http output filter  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:53 [debug] 9004#0: \*7 copy filter:  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:53 [debug] 9004#0: \*7 http postpone filter  
“/Scansioni/ImmagineAcquiredUpload?” BF9E7438  
2012/09/13 14:46:53 [debug] 9004#0: \*7 write old buf t:1 f:0 097860A0,  
pos  
097860A0, size: 333 file: 0, size: 0  
2012/09/13 14:46:53 [debug] 9004#0: \*7 write old buf t:1 f:0 0977BB10,  
pos  
0977BC62, size: 48 file: 0, size: 0  
2012/09/13 14:46:53 [debug] 9004#0: \*7 write new buf t:0 f:0 00000000,  
pos  
00000000, size: 0 file: 0, size: 0  
2012/09/13 14:46:53 [debug] 9004#0: \*7 http write filter: l:1 f:0 s:381  
2012/09/13 14:46:53 [debug] 9004#0: \*7 http write filter limit 0  
2012/09/13 14:46:53 [debug] 9004#0: \*7 writev: 381  
2012/09/13 14:46:53 [debug] 9004#0: \*7 http write filter 00000000  
2012/09/13 14:46:53 [debug] 9004#0: \*7 copy filter: 0  
“/Scansioni/ImmagineAcquiredUpload?”  
2012/09/13 14:46:53 [debug] 9004#0: \*7 http finalize request: 0,  
“/Scansioni/ImmagineAcquiredUpload?” 1  
2012/09/13 14:46:53 [debug] 9004#0: \*7 set http keepalive handler  
2012/09/13 14:46:53 [debug] 9004#0: \*7 http close request  
2012/09/13 14:46:53 [debug] 9004#0: \*7 http log handler  
2012/09/13 14:46:53 [debug] 9004#0: \*7 free: 0977BB10  
2012/09/13 14:46:53 [debug] 9004#0: \*7 free: 09784088  
2012/09/13 14:46:53 [debug] 9004#0: \*7 free: 0977AB08, unused: 0  
2012/09/13 14:46:53 [debug] 9004#0: \*7 free: 09786090, unused: 3430  
2012/09/13 14:46:53 [debug] 9004#0: \*7 event timer add: 3:  
75000:3215724382  
2012/09/13 14:46:53 [debug] 9004#0: \*7 free: 09781310  
2012/09/13 14:46:53 [debug] 9004#0: \*7 free: 097815B8  
2012/09/13 14:46:53 [debug] 9004#0: \*7 hc free: 00000000 0  
2012/09/13 14:46:53 [debug] 9004#0: \*7 hc busy: 00000000 0  
2012/09/13 14:46:53 [debug] 9004#0: \*7 tcp\_nodelay  
2012/09/13 14:46:53 [debug] 9004#0: \*7 post event 097B0A9C  
2012/09/13 14:46:53 [debug] 9004#0: \*7 delete posted event 097B0A9C  
2012/09/13 14:46:53 [debug] 9004#0: \*7 http keepalive handler  
2012/09/13 14:46:53 [debug] 9004#0: \*7 malloc: 09781310:1024  
2012/09/13 14:46:53 [debug] 9004#0: \*7 recv: fd:3 -1 of 1024  
2012/09/13 14:46:53 [debug] 9004#0: \*7 recv() not ready (11: Resource  
temporarily unavailable)  
2012/09/13 14:46:53 [debug] 9004#0: \*7 http keepalive handler  
2012/09/13 14:46:53 [debug] 9004#0: \*7 recv: fd:3 0 of 1024  
2012/09/13 14:46:53 [info] 9004#0: \*7 client 192.168.0.37 closed  
keepalive  
connection  
2012/09/13 14:46:53 [debug] 9004#0: \*7 close http connection: 3  
2012/09/13 14:46:53 [debug] 9004#0: \*7 event timer del: 3: 3215724382  
2012/09/13 14:46:53 [debug] 9004#0: \*7 free: 09781310  
2012/09/13 14:46:53 [debug] 9004#0: \*7 free: 00000000  
2012/09/13 14:46:53 [debug] 9004#0: \*7 free: 09778E58, unused: 56

Posted at Nginx Forum:

> **[Nginx proxy\_pass file upload 500 "Internal Server Error"](https://forum.nginx.org/read.php?2,230692,230692#msg-230692)**
>
> I've a problem using nginx as reverse proxy. I sent a POST request to nginx for file upload. My backend is an apache2 web server. My backend receive correctly request and save correctly uploaded file. My frontend, nginx, give back a 500, Internal...