标签:child python syn ima div res json app oca
在django中使用celery
Django版本1.9.8
pip install django-celery
Redis要指定版本,默认的3.x版本有问题
Pip uninstall redis
pip install redis==2.10.6
创建django的app celery_course,并配置运行起来,作为celery的测试应用
Python manage.py startapp celery_course
将celery_course这个app拖入apps这个集合文件夹中
把celery_course加入settings.py配置中
定义views这个视图
Celery_course/views.py
# _*_ coding:utf-8 _*_ from django.http import JsonResponse from celery_course.tasks import CourseTask from django.views.generic.base import View class DoView(View): def get(self, request): # 执行异步任务 print ‘start to request‘ # CourseTask.delay() CourseTask.apply_async(args=(‘hello‘,),queue=‘work_queue‘) print ‘end do request‘ return JsonResponse({‘result‘: ‘ok‘})
定义url
Mxonline/urls.py
url(r‘^celery_course/‘, include(‘celery_course.urls‘, namespace="celery_course")),
Celery_course/urls.py from django.conf.urls import url from .views import DoView urlpatterns = [ # 课程机构首页 url(r‘^do/$‘, DoView.as_view(), name="do"), ]
启动django应用,访问
Python manage.py runserver 0.0.0.0:8000
能正常访问,说明django配置没问题
接下来配置celery相关的内容
定义任务tasks.py
Celery_course/tasks.py
# _*_ coding:utf-8 _*_ # __author__ == ‘jack‘ import time from celery.task import Task class CourseTask(Task): name = ‘celery-course-task‘ def run(self, *args, **kwargs): print ‘start celery_course task‘ time.sleep(5) print ‘args={}, kwargs={}‘.format(args, kwargs) print ‘end course task ‘
配置celery
Mxonline/celeryconfig.py
# _*_ coding:utf-8 _*_ # __author__ == ‘jack‘ import djcelery from datetime import timedelta djcelery.setup_loader() CELERY_IMPORTS = ( ‘celery_course.tasks‘, ) CELERY_QUEUES = { ‘beat_tasks‘: { ‘exchange‘: ‘beat_tasks‘, ‘exchange_type‘: ‘direct‘, ‘binding_key‘: ‘beat_tasks‘, }, ‘work_queue‘: { ‘exchange‘: ‘work_queue‘, ‘exchange_type‘: ‘direct‘, ‘binding_key‘:‘work_queue‘ } } # 默认队列 CELERY_DEFAULT_QUEUE = ‘work_queue‘ # 有些情况可以防止死锁 CELERYD_FORCE_EXECV = True # 设置并发的worker数量 CELERYD_CONCURRENCY = 4 # 允许重试 CELERY_ACKS_LATE = True # 每个worker最多执行100个任务被销毁,可以防止内存泄露 CELERYD_MAX_TASKS_PER_CHILD = 100 # 单个任务的最大运行时间 CELERYD_TASK_TIME_LIMIT = 12 * 30 # 配置定时任务 CELERYBEAT_SCHEDULE = { ‘task1‘: { ‘task‘: ‘celery-course-task‘, ‘schedule‘: timedelta(seconds=5), ‘options‘:{ ‘queue‘: ‘beat_tasks‘ } } }
将celery和django联系起来,修改settings.py配置加入djcelery
导入celeryconfig配置
# 导入celery相关的配置 from .celeryconfig import * BROKER_BACKEND = ‘redis‘ BROKER_URL = ‘redis://localhost:6379/1‘ CELERY_RESULT_BACKEND = ‘redis://localhost:6379/2‘
启动django
启动worker
(mxonline) D:\python\mxonline>python manage.py celery worker --loglevel=info
启动beat定时任务
(mxonline) D:\python\mxonline>python manage.py celery beat --loglevel=info
标签:child python syn ima div res json app oca
原文地址:https://www.cnblogs.com/reblue520/p/12490130.html