sendfile() 在向上游 nginx 502 发送请求时失败(32:管道损坏) [英] sendfile() failed (32: Broken pipe) while sending request to upstream nginx 502

问题描述

我正在运行 Django、uwsgi、ngix 服务器.我的服务器适用于较小尺寸的 GET、POST 请求.但是在POST大尺寸的请求时，nginx返回502:nginx error.log 是:

I am running Django, uwsgi, ngix server. My server works fine for GET, POST requests of smaller size. But when POSTing requests of large size, nginx returns 502: nginx error.log is:

2016/03/01 13:52:19 [error] 29837#0: *1482 sendfile() failed (32: Broken pipe) while sending request to upstream, client: 175.110.112.36, server: server-ip, request: "POST /me/amptemp/ HTTP/1.1", upstream: "uwsgi://unix:///tmp/uwsgi.sock:", host: "servername"

因此，为了找出真正的问题所在，我在不同的端口上运行了 uwsgi，并检查了同一请求是否发生了任何错误.但是请求成功了.因此，问题出在 nginx 或 unix 套接字配置上.Ngin-x 配置:

So, in order to find where the real problem is, I ran uwsgi on a different port and checked if any error occurs with the same request. But the request was successful. So, the problem is with nginx or unix socket configuration. Ngin-x configuration:

# the upstream component nginx needs to connect to
upstream django {
     server unix:///tmp/uwsgi.sock; # for a file socket
#   server 127.0.0.1:8001; # for a web port socket (we'll use this first)
}

# configuration of the server
server {
# the port your site will be served on
    listen      80;
# the domain name it will serve for
    server_name 52.25.29.179; # substitute your machine's IP address or FQDN
        charset     utf-8;

# max upload size
    client_max_body_size 75M;   # adjust to taste

# Django media
        location /media  {
            alias /home/usman/Projects/trequant/trequant-python/trequant/media;  # your Django project's media files - amend as required
        }

    location /static {
        alias /home/usman/Projects/trequant/trequant-python/trequant/static; # your Django project's static files - amend as required
    }

# Finally, send all non-media requests to the Django server.
    location / {

########    proxy_pass              http://127.0.0.1:8000;
########    proxy_set_header        Host             $host;
########    proxy_set_header        X-Real-IP        $remote_addr;
########    proxy_set_header        X-Forwarded-For  $proxy_add_x_forwarded_for;
        uwsgi_pass  django;
        uwsgi_read_timeout 600s;
        uwsgi_send_timeout 600s;
        include     /etc/nginx/uwsgi_params; # the uwsgi_params file you installed
    }
}

那么，知道我做错了什么吗?提前致谢.

So, any idea what I am doing wrong? Thank you in advance.

推荐答案

另一个解决方法是使用 TCP 套接字而不是 conf 文件中的 unix 套接字:

Another fix is to use a TCP socket instead of a unix socket in your conf files:

1. 在 uwsgi.ini 中，在 [uwsgi] 部分使用类似 socket = 127.0.0.1:8000 的东西，而不是:

1. In uwsgi.ini, use something like socket = 127.0.0.1:8000 in the [uwsgi] section instead of:

socket =/tmp/uwsgi.sockchown-socket = nginx:nginxchmod-socket = 664

在你的 nginx.conf 文件中(顺便说一句，在 Ubuntu 中，我指的是/etc/nginx/conf.d/nginx.conf，而不是简单地在 /etc/nginx/) 使用 uwsgi_pass 127.0.0.1:8000; 而不是 include uwsgi_params;

In your nginx.conf file (btw in Ubuntu, I'm referring to /etc/nginx/conf.d/nginx.conf, NOT the one simply in /etc/nginx/) use uwsgi_pass 127.0.0.1:8000; instead of include uwsgi_params;

我已将此作为单独的答案发布，因为任何一个答案都可能有效，而且我很想知道哪个答案对其他人的帮助最大.

I've posted this as a separate answer because either answer may work, and I'm interested to see which answer helps others the most.

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