django启动uwsgi报错的解决⽅法
uwsgi介绍
uWSGI是⼀个Web服务器，它实现了WSGI协议、uwsgi、http等协议。Nginx中HttpUwsgiModule的作⽤是与uWSGI服务器进⾏交换。
要注意 WSGI / uwsgi / uWSGI 这三个概念的区分。
WSGI是⼀种Web服务器⽹关接⼝。它是⼀个Web服务器（如nginx，uWSGI等服务器）与web应⽤（如⽤Flask框架写的程序）通信的⼀种规范。
uwsgi是⼀种线路协议⽽不是通信协议，在此常⽤于在uWSGI服务器与其他⽹络服务器的数据通信。
⽽uWSGI是实现了uwsgi和WSGI两种协议的Web服务器。python安装教程非常详细
uwsgi协议是⼀个uWSGI服务器⾃有的协议，它⽤于定义传输信息的类型（type of information），每⼀个uwsgi packet前4byte为传输信息类型描述，它与WSGI相⽐是两样东西。
uwsgi性能⾮常⾼
最近在django启动uwsgi报错的时候，发现了⼀些错误，下⾯来⼀起看看吧
查看uwsgi.log
*** Starting uWSGI 2.0.17 (64bit) on [Thu Apr 5 17:46:15 2018] ***
compiled with version: 4.4.7 20120313 (Red Hat 4.4.7-18) on 05 April 2018 02:08:03
os: Linux-2.6.32-642.6.2.el6.x86_64 #1 SMP Wed Oct 26 06:52:09 UTC 2016
nodename: GDJ_DEV
machine: x86_64
clock source: unix
detected number of CPU cores: 1
current working directory: /xxx/xxx/xxx/xxx
writing pidfile to uwsgi.pid
detected binary path: /xxx/xxx/.virtualenvs/h1/bin/uwsgi
no internal routing support, rebuild with pcre support
chdir() to /xxx/xxx/xxx/xxx
your processes number limit is 100000
your memory page size is 4096 bytes
detected max file descriptor number: 100000
lock engine: pthread robust mutexes
thunder lock: disabled (you can enable it with --thunder-lock)
uWSGI http bound on 172.21.0.5:8000 fd 4
uwsgi socket 0 bound to TCP address 127.0.0.1:33522 (port auto-assigned) fd 3
Python version: 3.6.4 (default, Mar 24 2018, 10:32:21) [GCC 4.4.7 20120313 (Red Hat 4.4.7-18)]
Python main interpreter initialized at 0x1ff10d0
python threads support enabled
your server socket listen backlog is limited to 100 connections
your mercy for graceful operations on workers is 60 seconds
mapped 416880 bytes (407 KB) for 8 cores
*** Operational MODE: preforking+threaded ***
failed to open python file xxx/uwsgi.ini
unable to load app 0 (mountpoint='') (callable not found or import error)
*** no app loaded. going in full dynamic mode ***
*** uWSGI is running in multiple interpreter mode ***
spawned uWSGI master process (pid: 4865)
spawned uWSGI worker 1 (pid: 4866, cores: 2)
spawned uWSGI worker 2 (pid: 4867, cores: 2)
spawned uWSGI worker 3 (pid: 4868, cores: 2)
spawned uWSGI worker 4 (pid: 4869, cores: 2)
spawned uWSGI http 1 (pid: 4870)
--- no python application found, check your startup logs for errors ---
[pid: 4869|app: -1|req: -1/1] 118.26.10.242 () {40 vars in 777 bytes} [Thu Apr 5 17:46:31 2018] GET /user/login/ => generated 21 bytes in 0 msecs (HTTP/1.1 500) 2 headers in 83 bytes (0 switches on core 0)解决第⼀个报错，注意操作的先后顺序：
1.卸载uwsgi
pip uninstall uwsgi
#注意此时卸载，pip会有缓存留在系统⾥
2.安装pcre⽀持库
yum install pcre pcre-devel pcre-static
3.继续安装uwsgi，不⾛pip缓存
pip install uwsgi -I --no-cache-dir
#启动uwsgi，已经没有“  no internal routing support, rebuild with pcre support  ”报错了
解决第⼆个报错：
需要在你的uwsgi.ini⽂件中module指定项⽬下⾯的wsgi：
module=xxx.wsgi
#注：xxx为项⽬名称，startproject那个项⽬名称，这个错误解决后，下⾯的访问错误⾃然⽽然的就解决了！
附：我的uwsgi.ini配置⽂件
[uwsgi]
#socket=ip:port      #使⽤nginx代理请求时配置，直接访问uwsgi使⽤http⽅式
http=ip:port
chdir=/xxx/xxx      #项⽬根⽬录的绝对路径
wsgi-file=xxx/uwsgi.ini  #项⽬⽬录下的uwsgi.ini
module=xxx.wsgi      #指向项⽬下的wsgi模块
processes=4
threads=2
master=True
py-atuo-reload=1
env=DJANGO_SETTINGS_MODULE=xxx.settings
pidfile=uwsgi.pid
daemonize=uwsgi.log
总结
以上就是这篇⽂章的全部内容了，希望本⽂的内容对⼤家的学习或者⼯作具有⼀定的参考学习价值，如果有疑问⼤家可以留⾔交流，谢谢⼤家对的⽀持。

版权声明：本站内容均来自互联网，仅供演示用，请勿用于商业和其他非法用途。如果侵犯了您的权益请与我们联系QQ:729038198，我们将在24小时内删除。