Upload Issues with Nginx Reverse Proxy

[Tony Holmes]

Hey All,

I am using nginx (sweet server) as a reverse proxy in front of some user
content web servers. Nginx redirects them to the right server/port given
information extracted from a database.

Standard form posts work, no problem.

Uploading of files, however, fails. I see the back end /tmp folder being
touched but no temp file being placed.

So here is my nginx.conf snippet on the front end:

worker_processes  4;

error_log  /var/log/error.log  info;

pid        /var/run/nginx.pid;


events {
    worker_connections  1024;
    use kqueue;
}


http {
    include       mime.types;
    default_type  text/html;


    sendfile            on;
    tcp_nopush          on;
    tcp_nodelay         off;

    #keepalive_timeout  0;
    keepalive_timeout  5;

    gzip                on;
    gzip_http_version   1.0;
    gzip_comp_level     2;
    gzip_proxied        any;
    gzip_types      text/plain text/html text/css application/x-javascript
text/xml application/xml application/xml+rss text/javascript;

    map_hash_max_size   2000000;
    map $user $valid {
        include         /usr/local/etc/nginx/webusers.txt;
    }


    server {
        listen       80;
        server_name  .domain.com;

        # Strip leading www. and redirect
        if ( $http_host ~ ^www\.([^\.]+)\.domain\.com ) {
                set $user $1;
                rewrite   ^/(.*)$       http://$user.domain.com/$1
redirect;
                break;
        }

        # Get username from the hostname
        set $user '-';
        if ( $http_host ~ ^([^\.]+)\.domain\.com ) {
                set $user $1;
        }
        if ( $user = '-') {
                return 404;
        }

        # Get the users port and ads
        set $server $valid;
        if ($server = 'invalid') {
                rewrite ^       http://www.domain.com/invalid.php
redirect;
                break;
        }

        if ($server = 'TERMINATED') {
                rewrite ^       http://www.daomin.com/terminated.php
redirect;
                break;
        }

        if ($server = 'SUSPENDED') {
                rewrite ^       http://www.domain.com/suspended.php
redirect;
                break;
        }

        if ($server = 'RESERVED') {
                rewrite ^       http://www.domain.com/reserved.php
redirect;
                break;
        }

        log_format  main  '$http_host $remote_addr - $remote_user
[$time_local] $request '
                          '"$status" $body_bytes_sent "$http_referer" '
                          '"$http_user_agent" "$http_x_forwarded_for"';

        access_log  /var/log/access.log  main;

        location / {
                proxy_set_header Host           $host;
                proxy_set_header X-Real-IP      $remote_addr;
                proxy_set_header X-Forwarded-For        $remote_addr;
                proxy_redirect  off;

                # $server comes from the map
                proxy_pass      http://$server$request_uri;

                client_max_body_size    16m;
                client_body_buffer_size 16k;

                proxy_buffering         off;

                proxy_connect_timeout   5;
                proxy_send_timeout      90;
                proxy_read_timeout      120;

                error_page      502 503 504
http://www.domain.com/proxy_timeout.php;


                proxy_pass_header Expires;
                proxy_pass_header Cache-Control;
                proxy_pass_header Last-Modified;
                proxy_pass_header ETag;
                proxy_pass_header Content-Length;

        }

        error_page  404              http://www.domain.com/404.php;
    }

}


I have explicitly turned off proxy buffering - they are just passthrough
servers mapping backends into a clean URL space.

Am I missing something obvious?

Tony
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://nginx.org/pipermail/nginx/attachments/20080913/126e0842/attachment.html>