Celery Flask - 錯誤：[Errno 111]連接被拒絕

Question

在完成了燒瓶芹菜的基本示例之后（據我所知，運行正常）我正在嘗試將其集成到我自己的項目中。 基本上，我在下面使用這個：

from flask import Blueprint, jsonify, request, session
from flask.views import MethodView
from celery.decorators import task

blueprint = Blueprint('myapi', __name__)

class MyAPI(MethodView):

    def get(self, tag):
        return get_resource.apply_async(tag)

@task(name="get_task")
def get_resource(tag):
    pass

使用與示例中相同的設置，我收到此錯誤：

Traceback (most recent call last):
  File "/x/venv/lib/python2.7/site-packages/flask/app.py", line 1518, in __call__
    return self.wsgi_app(environ, start_response)
  File "/x/venv/lib/python2.7/site-packages/flask/app.py", line 1506, in wsgi_app
    response = self.make_response(self.handle_exception(e))
  File "/x/venv/lib/python2.7/site-packages/flask/app.py", line 1504, in wsgi_app
    response = self.full_dispatch_request()
  File "/x/venv/lib/python2.7/site-packages/flask/app.py", line 1264, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/x/venv/lib/python2.7/site-packages/flask/app.py", line 1262, in full_dispatch_request
    rv = self.dispatch_request()
  File "/x/venv/lib/python2.7/site-packages/flask/app.py", line 1248, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "/x/venv/lib/python2.7/site-packages/flask/views.py", line 84, in view
    return self.dispatch_request(*args, **kwargs)
  File "/x/venv/lib/python2.7/site-packages/flask/views.py", line 151, in dispatch_request
    return meth(*args, **kwargs)
  File "/x/api/modules/document/document.py", line 14, in get
    return get_resource.apply_async(tag)
  File "/x/venv/lib/python2.7/site-packages/celery/app/task/__init__.py", line 449, in apply_async
    publish = publisher or self.app.amqp.publisher_pool.acquire(block=True)
  File "/x/venv/lib/python2.7/site-packages/kombu/connection.py", line 657, in acquire
    R = self.prepare(R)
  File "/x/venv/lib/python2.7/site-packages/kombu/pools.py", line 54, in prepare
    p = p()
  File "/x/venv/lib/python2.7/site-packages/kombu/pools.py", line 45, in <lambda>
    return lambda: self.create_producer()
  File "/x/venv/lib/python2.7/site-packages/celery/app/amqp.py", line 265, in create_producer
    pub = self.app.amqp.TaskPublisher(conn, auto_declare=False)
  File "/x/venv/lib/python2.7/site-packages/celery/app/amqp.py", line 328, in TaskPublisher
    return TaskPublisher(*args, **self.app.merge(defaults, kwargs))
  File "/x/venv/lib/python2.7/site-packages/celery/app/amqp.py", line 158, in __init__
    super(TaskPublisher, self).__init__(*args, **kwargs)
  File "/x/venv/lib/python2.7/site-packages/kombu/compat.py", line 61, in __init__
    super(Publisher, self).__init__(connection, self.exchange, **kwargs)
  File "/x/venv/lib/python2.7/site-packages/kombu/messaging.py", line 79, in __init__
    self.revive(self.channel)
  File "/x/venv/lib/python2.7/site-packages/kombu/messaging.py", line 168, in revive
    channel = channel.default_channel
  File "/x/venv/lib/python2.7/site-packages/kombu/connection.py", line 581, in default_channel
    self.connection
  File "/x/venv/lib/python2.7/site-packages/kombu/connection.py", line 574, in connection
    self._connection = self._establish_connection()
  File "/x/venv/lib/python2.7/site-packages/kombu/connection.py", line 533, in _establish_connection
    conn = self.transport.establish_connection()
  File "/x/venv/lib/python2.7/site-packages/kombu/transport/amqplib.py", line 279, in establish_connection
    connect_timeout=conninfo.connect_timeout)
  File "/x/venv/lib/python2.7/site-packages/kombu/transport/amqplib.py", line 89, in __init__
    super(Connection, self).__init__(*args, **kwargs)
  File "/x/venv/lib/python2.7/site-packages/amqplib/client_0_8/connection.py", line 129, in __init__
    self.transport = create_transport(host, connect_timeout, ssl)
  File "/x/venv/lib/python2.7/site-packages/amqplib/client_0_8/transport.py", line 281, in create_transport
    return TCPTransport(host, connect_timeout)
  File "/x/venv/lib/python2.7/site-packages/amqplib/client_0_8/transport.py", line 85, in __init__
    raise socket.error, msg
error: [Errno 111] Connection refused

-->

我正在使用redis，如果我安裝了rabbitmq，我會收到另一個錯誤，但我現在不明白這個 - 經紀人應該是redis但它找不到它或者什么？ 任何人都可以給我更多線索這里發生了什么？ 我是否需要導入其他內容等等。重點是，除了裸露的骨頭示例之外幾乎沒有什么，這對我來說毫無意義。

我能夠確定的最多，因為在Api模塊中無法訪問'芹菜'，當它在應用程序級別嘗試將數據放入那里時，那里的芹菜會出現一些默認值，這些都是安裝因為我指的是redis。 只是一個猜測。 我無法將信息導入模塊，只是確定從應用程序調用任何“celery”（例如，輸出celery.conf）會導致錯誤 - 盡管我可以導入celery.task。

這是應用程序正在使用的代理配置，直接來自示例：

BROKER_URL = 'redis://localhost:6379/0'
CELERY_RESULT_BACKEND = "redis"
CELERY_REDIS_HOST = "localhost"
CELERY_REDIS_PORT = 6379
CELERY_REDIS_DB = 0

編輯：

如果你想看一個演示： https ： //github.com/thrisp/flask-celery-example

事實證明，在你的設置中使用BROKER_TRANSPORT ='redis'對我傳入的任何內容都很重要（對於我在這里和git示例中提出的設置），我不完全確定為什么它不是在示例位中，但是在我添加的那些位中卻是 - 如果沒有這個，它想要將所有內容轉儲到默認的ampq隊列中。

EDIT2：

此外，這是一個相當大的優點，使用即將推出的Celery版本在使用Flask時簡化了10,000個問題，使所有這些都成為不可能的。

Answer 1

您必須配置redis以綁定localhost。 在/etc/redis/redis.conf ，取消注釋該行

bind 127.0.0.1