使用djcelery抓取網站並填充Django模型

Question

我在讓芹菜和django合作時遇到麻煩。 我想用芹菜刮擦網站並每20分鍾更新一些Django模型。

我在應用程序目錄中創建了一個具有更新類的任務文件：

class Update(PeriodicTask):
    run_every=datetime.timedelta(minutes=20)

    def run(self, **kwargs):
        #update models

如果我從命令行運行它，該類將正確更新我的modesl：

if __name__ == '__main__':
    Update().run()

我在setting.py中的芹菜配置看起來像這樣：

CELERY_RESULT_BACKEND = "database"
BROKER_HOST = 'localhost'
BROKER_PORT = 5672
BROKER_USER = 'Broker'
BROKER_PASSWORD = '*password*'
BROKER_VHOST = 'broker_vhost'

但是，當我運行manage.py celeryd -v 2出現連接錯誤：

[2010-12-29 09:28:15,150: ERROR/MainProcess] CarrotListener: Connection Error: [Errno 111] Connection refused. Trying again in 10 seconds...

我想念什么？

更新：

我發現django-kombu看起來不錯，因為它使用了我現有的數據庫。 我已經安裝了django-kombu和kombu，但是現在在運行manage.py celeryd -v 2時出現以下錯誤。

Traceback (most recent call last):
  File "manage.py", line 11, in <module>
    execute_manager(settings)
  File "<webapp_path>/lib/python2.6/django/core/management/__init__.py", line 438, in execute_manager
    utility.execute()
  File "<webapp_path>/lib/python2.6/django/core/management/__init__.py", line 379, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "<webapp_path>/lib/python2.6/django/core/management/base.py", line 191, in run_from_argv
    self.execute(*args, **options.__dict__)
  File "<webapp_path>/lib/python2.6/django/core/management/base.py", line 220, in execute
    output = self.handle(*args, **options)
  File "<webapp_path>/lib/python2.6/django_celery-2.1.4-py2.6.egg/djcelery/management/commands/celeryd.py", line 20, in handle
    worker.run(*args, **options)
  File "<webapp_path>/lib/python2.6/celery-2.1.4-py2.6.egg/celery/bin/celeryd.py", line 83, in run
    from celery.apps.worker import Worker
  File "<webapp_path>/lib/python2.6/celery-2.1.4-py2.6.egg/celery/apps/worker.py", line 15, in <module>
    from celery.task import discard_all
  File "<webapp_path>/lib/python2.6/celery-2.1.4-py2.6.egg/celery/task/__init__.py", line 7, in <module>
    from celery.execute import apply_async
  File "<webapp_path>/lib/python2.6/celery-2.1.4-py2.6.egg/celery/execute/__init__.py", line 7, in <module>
    from celery.result import AsyncResult, EagerResult
  File "<webapp_path>/lib/python2.6/celery-2.1.4-py2.6.egg/celery/result.py", line 9, in <module>
    from celery.backends import default_backend
  File "<webapp_path>/lib/python2.6/celery-2.1.4-py2.6.egg/celery/backends/__init__.py", line 51, in <module>
    default_backend = DefaultBackend()
TypeError: __init__() takes exactly 2 arguments (1 given)

Answer 1

好像沒有安裝/運行代理（RabbitMQ？）

Answer 2

我遇到了同樣的問題，問題是導入路徑錯誤。

可能您將任務導入為

from celery import task 。

當你應該

from celery.task import task