我在uwsgi上运行Django时无法加载app 0错误

Question

我跑

uwsgi --http：8091 --module proj2.wsgi

但是我犯了错误；

*** Operational MODE: single process ***
Traceback (most recent call last):
  File "./proj2/__init__.py", line 5, in <module>
    from .celery import app as celery_app 
  File "./proj2/celery.py", line 5, in <module>
    from celery import Celery
ImportError: No module named celery
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 worker 1 (and the only) (pid: 13930, cores: 1)

当我检查芹菜时

(proj2) [proj2@localhost proj2]$ which celery
~/Env/proj2/bin/celery

奇怪的是，如果我运行带有runserver的项目，它就可以工作。

(proj2) [proj2@localhost proj2]$ python manage.py runserver
Performing system checks...

System check identified no issues (0 silenced).
July 23, 2018 - 17:46:01
Django version 1.9.1, using settings 'pro.settings'
Starting development server at http://127.0.0.1:8000/
Quit the server with CONTROL-C.

但是不能与uwsgi合作...

Answer 1

最后我解决了这个问题。 我在uwsgi和nginx上提供两个项目。 使用Emperor for uwsgi管理进程。 因此，可能应该进行适当的配置，以便与皇帝一起进行管理。

解决方案：

/ etc / uwsgi / sites中用于uwsgi的proj2.ini文件应如下所示。

[uwsgi]
py-autoreload = 2
project = proj2
username = proj2
base = /home/%(username)

chdir = %(base)/work/%(project)
home = %(base)/Env/%(project)
module = %(project).wsgi:application

master = true
processes = %k

uid = %(username)
socket = /run/uwsgi/%(project).sock
chown-socket = %(username):nginx
chmod-socket = 660
vacuum = true
env = DJANGO_SETTINGS_MODULE=pro.settings
logto = /var/log/uwsgi/%(project).log

项目目录下的wsgi.py应该如下所示：

import os
import sys

from django.core.wsgi import get_wsgi_application

sys.path.append("/home/proj2/Env/proj2/lib/python2.7/site-packages/")
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "proj2.settings")

application = get_wsgi_application()

Emperor：创建uwsgi.service

Create a Systemd Unit File for uWSGI

    sudo nano /etc/systemd/system/uwsgi.service

    > uwsgi.service

        [Unit]
        Description=uWSGI Emperor service

        [Service]
        ExecStartPre=/usr/bin/bash -c 'mkdir -p /run/uwsgi; chown <USER>:nginx /run/uwsgi'
        ExecStart=/usr/bin/uwsgi --emperor /etc/uwsgi/sites
        Restart=always
        KillSignal=SIGQUIT
        Type=notify
        NotifyAccess=all

        [Install]
        WantedBy=multi-user.target

因此，当您使用“ sudo systemctl start uwsgi”启动uwsgi时，所有django站点都将使用来自/ etc / uwsgi / sites /的ini文件。 然后Nginx将为它们提供来自/run/uwsgi/%(project).sock文件的sock文件。