详解配置Django的Celery异步之路踩坑

apt-get install python3
pip3 install django

pip3 install celery
pip3 install redis==2.10.6

apt-get install redis
service redis start

python3 manage.py startproject nenew
cd nenew
python3 manage.py startapp nenewapp
touch ./nenew/celery.py
touch ./nenewapp/tasks.py

from __future__ import absolute_import, unicode_literals
import os
from celery import Celery

# set the default Django settings module for the 'celery' program.
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'nenew.settings')

app = Celery('nenew')

# Using a string here means the worker doesn't have to serialize
# the configuration object to child processes.
# - namespace='CELERY' means all celery-related configuration keys
#  should have a `CELERY_` prefix.
app.config_from_object('django.conf:settings', namespace='CELERY')

# Load task modules from all registered Django app configs.
app.autodiscover_tasks()


@app.task(bind=True)
def debug_task(self):
  print('Request: {0!r}'.format(self.request))

from __future__ import absolute_import, unicode_literals

# This will make sure the app is always imported when
# Django starts so that shared_task will use this app.
from .celery import app as celery_app

__all__ = ('celery_app',)

# Create your tasks here
from __future__ import absolute_import, unicode_literals
from celery import shared_task


@shared_task
def add(x, y):
  return x + y


@shared_task
def mul(x, y):
  return x * y


@shared_task
def xsum(numbers):
  return sum(numbers)

...

ALLOWED_HOSTS = ['*']
....

INSTALLED_APPS = [
...
  'nenewtest',
]

...

CELERY_BROKER_URL = 'redis://localhost:6379/1'
CELERY_RESULT_BACKEND = ‘redis://localhost:6379/0'

from django.shortcuts import render
from django.http import HttpResponse
from .tasks import add
# Create your views here.
def nenewtest(request):
  result = add.delay('2','2')
  result.ready()
  return HttpResponse('nenew Django Celery worker run !')

from django.contrib import admin
from django.urls import path
from nenewtest import views

urlpatterns = [
  path('admin/', admin.site.urls),
  path('test/', views.nenewtest),
]

celery -A nenew worker -l info

python3 manage.py runserver 0:80

-redis>=2.10.5
+redis>=2.10.5,<3