python redis-queue:文档不工作的简单示例

python redis-queue: Simple example from documentaion not working

我有两个文件,从字面上复制粘贴 http://python-rq.org/docs/:

app.py

    from rq import Queue
    from redis import Redis
    from somewhere import count_words_at_url
    import time

    # Tell RQ what Redis connection to use
    redis_conn = Redis()
    q = Queue(connection=redis_conn)  # no args implies the default queue

    print(redis_conn)
    # Delay execution of count_words_at_url('http://nvie.com')
    job = q.enqueue(count_words_at_url, 'http://nvie.com')
    print(job.result)   # => None

    # Now, wait a while, until the worker is finished
    time.sleep(10)
    print(job.result)   # => 889

somewhere.py

import requests
def count_words_at_url(url):
    print("hello?")
    resp = requests.get(url)
    return len(resp.text.split())

I 运行 app.py ,我得到的输出是 2 None 值,而不是根据文档我应该得到的 889。

我不确定我明白为什么会这样。我的超时时间是 10 秒,它比文档中的时间长,所以我期待工作完成。

我做错了什么?

  1. 是Redis服务器吗运行?

    服务 redis 服务器状态

  2. 是rq worker 运行?

    请求信息

如果没有工人运行,那么

rq worker # run this under the same directory of your project
18:44:54 RQ worker 'rq:worker:ubuntu.45276' started, version 0.12.0
18:44:54 *** Listening on default...
18:44:54 Cleaning registries for queue: default
  1. 用更简单的函数替换count_words_at_url,例如

    def just_mock(url): time.sleep(5) return "count words for {} is ??".format(url)