nginx部署在windows server中，做了反向代理。配置如下

#user  nobody;
worker_processes  1;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;
worker_rlimit_nofile 65000;


events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;
    charset UTF-8;
	
    server_names_hash_bucket_size 128;

    sendfile        on;
    tcp_nopush     on;
    tcp_nodelay    on;
    keepalive_timeout  120;		
    # gzip压缩功能设置
    # gzip on;

    # http_proxy 设置
    lingering_timeout 600s;
    send_timeout 600s;
    proxy_connect_timeout   60;
    proxy_send_timeout   60;
    proxy_read_timeout   60;
    client_header_timeout  60; 
    client_body_timeout 60;
    client_header_buffer_size 1M;
    large_client_header_buffers 8 1M;
    client_max_body_size 1024M;
    client_body_buffer_size 10M;
	
    # proxy header	
    proxy_set_header Host $host:$server_port;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Cookie $http_cookie;
	

    server {
        listen       80;
        server_name  my.domain.com;

		add_header Cache-Control no-cache;
		
		
		# 首页
		location / {
            root   html/home;
			error_page  500 502 503 504 404 403   /error.html;
			client_max_body_size    1024m ;
	
			}
        }
		
		# 单点
		location /sso/ {
			proxy_pass http://127.0.0.1:7001/sso/;
		}
		
		location /um/ {
			proxy_pass http://127.0.0.1:8080/um/;
		}
		
		location /pm/ {
			proxy_pass http://127.0.0.1:8080/pm/;
			proxy_buffering off;
			proxy_buffer_size 4k;
			proxy_buffers 8 1M;
			proxy_busy_buffers_size  2M;
			proxy_temp_file_write_size  2M;
			proxy_temp_path   temp/proxy_temp 1 2;
			limit_rate_after 30m;   
			limit_rate 700k;            #这里根据需要设置，意思是视频缓冲30M之后，限速为700k/s
		}
				
		
		
				
		error_page  500 502 503 504 404 403  /error.html;
		location = /error.html {
			# 放错误页面的目录路径。
			root   html;
			client_max_body_size  1024m;
		}
		
		
    }

}

但是在PM应用中上传大于10M的文件时(使用jquery+ajax+java技术栈)，总是提示ERR_CONNECTION_RESET失败，查看nginx的access日志中都没有上传文件的请求的记录。

对于小于10M的文件，一切都没问题。

通过wireshark抓包分析,报错如下：

2156	61.473231	10.80.90.216	dstip	HTTP	1402	POST /pm/fileupload?type=0 HTTP/1.1 
2157	61.473323	10.80.90.216	dstip	HTTP	1514	Continuation
2157	61.473323	10.80.90.216	dstip	HTTP	1514	Continuation
。。。。。这里是多条Continuation的包信息。。。。

2238 61.559356 10.80.90.216 dstip HTTP 1514 [TCP Window Full] Continuation
2243 61.918391 10.80.90.216 dstip  HTTP 55 [TCP ZeroWindowProbe] Continuation

分析是底层TCP的问题，但是不知道如何解决。有遇到过该问题的大神，还往不吝赐教！