uwsgi + nginx + flask: upstream prematurely closed

Question

我在烧瓶上创建了一个端点，该端点从数据库查询（远程数据库）生成电子表格，然后将其作为下载内容发送到浏览器中。Flask不会抛出任何错误。Uwsgi没有抱怨。

但是当我检查nginx的error.log时，我看到了很多

2014/12/10 05:06:24 [错误] 14084＃0：* 239436上游过早关闭连接，同时从上游读取响应头，客户端：34.34.34.34，服务器：me.com，请求：“ GET / download / export .csv HTTP / 1.1”，上游：“ uwsgi：//0.0.0.0：5002”，主机：“ me.com”，引荐来源网址：“ https://me.com/download/export.csv ”

我像部署uwsgi

uwsgi --socket 0.0.0.0:5002 --buffer-size=32768 --module server --callab app

我的nginx配置：

server {
     listen 80;
     merge_slashes off;
     server_name me.com www.me.cpm;

     location / { try_files $uri @app; }
       location @app {
          include uwsgi_params;
          uwsgi_pass 0.0.0.0:5002;
          uwsgi_buffer_size 32k;
          uwsgi_buffers 8 32k;
          uwsgi_busy_buffers_size 32k;
     }

}

server {
      listen 443;
      merge_slashes off;
      server_name me.com www.me.com;

    location / { try_files $uri @app; }
       location @app {
          include uwsgi_params;
          uwsgi_pass 0.0.0.0:5002;
          uwsgi_buffer_size 32k;
          uwsgi_buffers 8 32k;
          uwsgi_busy_buffers_size 32k;
       }
}

这是nginx或uwsgi问题，还是两者都有？

Answer 1

更改nginx.conf以包括

sendfile        on;
client_max_body_size 20M;
keepalive_timeout  0;