uWSGI配置问题：uwsgi失败，没有任何错误消息。 [英] uWSGI configuration issue: uwsgi fails without any error message.

问题描述

在第一次配置uwsgi django应用程序时，我有奇怪的错误。 NGIX（根据文档配置）响应 502 Bad Gateway响应。

When configuring uwsgi django application for first time i had weird error. NGIX (configured as per documentation) responded with 502 Bad Gateway response.

Uwsgi日志没有明显的错误：

Uwsgi logs give no apparent error:

  Sun Oct  7 17:36:31 2012 - *** Starting uWSGI 1.2.3-debian (64bit) on [Sun Oct  7 17:36:31 2012] ***
  Sun Oct  7 17:36:31 2012 - compiled with version: 4.7.1 on 13 September 2012 19:07:14
  Sun Oct  7 17:36:31 2012 - detected number of CPU cores: 2
  Sun Oct  7 17:36:31 2012 - current working directory: /
  Sun Oct  7 17:36:31 2012 - writing pidfile to /run/uwsgi/app/lfitjcmsjb/pid
  Sun Oct  7 17:36:31 2012 - detected binary path: /usr/bin/uwsgi-core
  Sun Oct  7 17:36:31 2012 - setgid() to 33
  Sun Oct  7 17:36:31 2012 - setuid() to 33
  Sun Oct  7 17:36:31 2012 - your memory page size is 4096 bytes
  Sun Oct  7 17:36:31 2012 - detected max file descriptor number: 1024
  Sun Oct  7 17:36:31 2012 - lock engine: pthread robust mutexes
  Sun Oct  7 17:36:31 2012 - uwsgi socket 0 bound to UNIX address /run/uwsgi/app/lfitjcmsjb/socket fd 3
  Sun Oct  7 17:36:31 2012 - uwsgi socket 1 bound to UNIX address /tmp/lfitj.sock fd 5
  Sun Oct  7 17:36:31 2012 - your server socket listen backlog is limited to 100 connections
  Sun Oct  7 17:36:31 2012 - *** Operational MODE: preforking ***
  Sun Oct  7 17:36:31 2012 - *** no app loaded. going in full dynamic mode ***
  Sun Oct  7 17:36:31 2012 - *** uWSGI is running in multiple interpreter mode ***
  Sun Oct  7 17:36:31 2012 - spawned uWSGI master process (pid: 5141)
  Sun Oct  7 17:36:31 2012 - spawned uWSGI worker 1 (pid: 5144, cores: 1)
  Sun Oct  7 17:36:31 2012 - spawned uWSGI worker 2 (pid: 5145, cores: 1)
  Sun Oct  7 17:37:57 2012 - -- unavailable modifier requested: 0 --

推荐答案

uWSGI日志显示错误---它是：

uWSGI logs show error --- it is:

 -- unavailable modifier requested: 0 --

这基本上意味着python插件缺少 - 你需要安装它。在debian上，您需要安装 uwsgi-plugin-python 。

which basically means that python plugin is missing --- you need to install it. On debian you need to install uwsgi-plugin-python.

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