python - redis 在我的 python django 应用程序中不工作

Question

我首先按照 heroku 网站上的教程进行操作。我这样做了

pip install rq

然后在一个worker.py文件中

import os

    import redis
    from rq import Worker, Queue, Connection

    listen = ['high', 'default', 'low']

    redis_url = os.getenv('REDISTOGO_URL', 'redis://localhost:6379')

    conn = redis.from_url(redis_url)

    if __name__ == '__main__':
        with Connection(conn):
            worker = Worker(map(Queue, listen))
            worker.work()

然后

python worker.py

我得到了以下错误

        Traceback (most recent call last):
      File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/redis/connection.py", line 439, in connect
        sock = self._connect()
      File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/redis/connection.py", line 494, in _connect
        raise err
      File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/redis/connection.py", line 482, in _connect
        sock.connect(socket_address)
    ConnectionRefusedError: [Errno 61] Connection refused

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/redis/client.py", line 572, in execute_command
        connection.send_command(*args)
      File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/redis/connection.py", line 563, in send_command
        self.send_packed_command(self.pack_command(*args))
      File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/redis/connection.py", line 538, in send_packed_command
        self.connect()
      File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/redis/connection.py", line 442, in connect
        raise ConnectionError(self._error_message(e))
    redis.exceptions.ConnectionError: Error 61 connecting to localhost:6379. Connection refused.

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/redis/connection.py", line 439, in connect
        sock = self._connect()
      File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/redis/connection.py", line 494, in _connect
        raise err
      File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/redis/connection.py", line 482, in _connect
        sock.connect(socket_address)
    ConnectionRefusedError: [Errno 61] Connection refused

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "worker.py", line 15, in <module>
        worker.work()
      File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/rq/worker.py", line 423, in work
        self.register_birth()
      File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/rq/worker.py", line 242, in register_birth
        if self.connection.exists(self.key) and \
      File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/redis/client.py", line 855, in exists
        return self.execute_command('EXISTS', name)
      File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/redis/client.py", line 578, in execute_command
        connection.send_command(*args)
      File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/redis/connection.py", line 563, in send_command
        self.send_packed_command(self.pack_command(*args))
      File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/redis/connection.py", line 538, in send_packed_command
        self.connect()
      File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/redis/connection.py", line 442, in connect
        raise ConnectionError(self._error_message(e))
    redis.exceptions.ConnectionError: Error 61 connecting to localhost:6379. Connection refused.

然后我去谷歌找到了我也遵循的包索引

>>> import redis
>>> r = redis.StrictRedis(host='localhost', port=6379, db=0)
>>> r.set('foo', 'bar')

点击回车，得到如下信息

        Traceback (most recent call last):
      File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/redis/connection.py", line 439, in connect
        sock = self._connect()
      File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/redis/connection.py", line 494, in _connect
        raise err
      File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/redis/connection.py", line 482, in _connect
        sock.connect(socket_address)
    ConnectionRefusedError: [Errno 61] Connection refused

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/redis/client.py", line 572, in execute_command
        connection.send_command(*args)
      File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/redis/connection.py", line 563, in send_command
        self.send_packed_command(self.pack_command(*args))
      File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/redis/connection.py", line 538, in send_packed_command
        self.connect()
      File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/redis/connection.py", line 442, in connect
        raise ConnectionError(self._error_message(e))
    redis.exceptions.ConnectionError: Error 61 connecting to localhost:6379. Connection refused.

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/redis/connection.py", line 439, in connect
        sock = self._connect()
      File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/redis/connection.py", line 494, in _connect
        raise err
      File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/redis/connection.py", line 482, in _connect
        sock.connect(socket_address)
    ConnectionRefusedError: [Errno 61] Connection refused

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "<stdin>", line 1, in <module>
      File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/redis/client.py", line 1072, in set
        return self.execute_command('SET', *pieces)
      File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/redis/client.py", line 578, in execute_command
        connection.send_command(*args)
      File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/redis/connection.py", line 563, in send_command
        self.send_packed_command(self.pack_command(*args))
      File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/redis/connection.py", line 538, in send_packed_command
        self.connect()
      File "/Users/ray/Desktop/myheroku/practice/lib/python3.5/site-packages/redis/connection.py", line 442, in connect
        raise ConnectionError(self._error_message(e))
    redis.exceptions.ConnectionError: Error 61 connecting to localhost:6379. Connection refused.

我所做的不多于或少于这些教程所要求的。我怎样才能使它工作？

Answer 1

您需要运行redis 服务器。在您的控制台上键入 redis-server 以启动服务器(Mac OSX)。

$redis-server

请记住，工作人员需要一个代理 (redis) 才能与您的应用进行通信。