Nginx 400 error

I use nginx proxy tomcat, but there have been many 400 error, about 10%.
But do not use nginx, tomcat can normally handle this part of the
request.
This is my nginx configuration :
user nobody;
worker_processes 1;

error_log logs/error.log;
pid logs/nginx.pid;

events {
# use [ kqueue | rtsig | epoll | /dev/poll | select | poll ];
use epoll;

    # web server   : max_clients = worker_processes *

worker_connections
# proxy server : max_clients = worker_processes *
worker_connections
/ 4
worker_connections 8192;
}

http {
include mime.types;
default_type application/octet-stream;

    log_format      main       '$remote_addr - $remote_user

[$time_local] “$request” ’
‘$status $body_bytes_sent
“$http_referer”

‘"$http_user_agent"
“$http_x_forwarded_for” |body: $request_body’ ’ $request_time’ ’ $host’;

    #access_log                 logs/access.log  main;

    sendfile                    on;
    tcp_nopush                  on;

    keepalive_timeout           90;

    gzip                        on;
    gzip_comp_level             5;
    gzip_http_version           1.0;
    gzip_min_length             1024;
    gzip_buffers                4  8k;
    gzip_types                  text/plain application/x-javascript

text/css application/xml;

    client_header_buffer_size   32k;
    large_client_header_buffers 4 32k;
    #client_max_body_size     2M;
    #client_body_buffer_size   512k;
    fastcgi_intercept_errors        on;
    fastcgi_connect_timeout     300;
    fastcgi_send_timeout        300;
    fastcgi_read_timeout        300;
    fastcgi_buffers             4 256k;
    fastcgi_busy_buffers_size   256k;
    fastcgi_buffer_size         128k;
    proxy_ignore_client_abort on;

    #proxy_buffer_size    32k;
    #proxy_buffers 4 32k;
    # The following includes are specified for virtual hosts
    include        vhosts/*.conf;

}

upstream download {
server 127.0.0.1:8001 weight=1;
}

server {
listen 80;
server_name 210.209.116.176 *.newlife-sh.com;
access_log logs/download.log main;
location /{
proxy_set_header Host $http_host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header REMOTE-HOST $remote_addr;
# proxy_set_header X-Forwarded-For
$proxy_add_x_forwarded_for;
client_max_body_size 50m;
client_body_buffer_size 1024k;
proxy_intercept_errors on;
error_page 400 error;
proxy_connect_timeout 90;
proxy_send_timeout 120;
proxy_read_timeout 300;
proxy_buffer_size 4m;
proxy_buffers 8 1024k;
proxy_busy_buffers_size 4m;
proxy_temp_file_write_size 16m;
proxy_next_upstream error timeout invalid_header http_500
http_503 http_404;
proxy_max_temp_file_size 128m;
proxy_pass http://download;
}
location /nginxstatus {
access_log on;
allow all;
}
}

Posted at Nginx Forum:
http://forum.nginx.org/read.php?2,247540,247540#msg-247540

upstream download {
server 127.0.0.1:8001 weight=1;
}

server {
listen 80;
server_name 210.209.116.176 *.newlife-sh.com;
access_log logs/download.log main;
location /{
proxy_set_header Host $http_host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header REMOTE-HOST $remote_addr;

proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

client_max_body_size 50m;
client_body_buffer_size 1024k;
proxy_connect_timeout 90;
proxy_send_timeout 120;
proxy_read_timeout 300;
proxy_buffer_size 4m;
proxy_buffers 8 1024k;
proxy_busy_buffers_size 4m;
proxy_temp_file_write_size 16m;
proxy_next_upstream error timeout invalid_header http_500 http_503
http_404;
proxy_max_temp_file_size 128m;
proxy_pass http://download;
}
location /nginxstatus {
access_log on;
allow all;
}
}

Posted at Nginx Forum:
http://forum.nginx.org/read.php?2,247540,247541#msg-247541

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