Question

我正在测试Tornado - 芹菜 - RabbitMQ集成。所以，我从GitHub＆amp; amp;中获取了this代码。修改它以获得更好的理解。我正在使用Ubuntu 12.04 LTS，这是我到目前为止所做的：

Installed Tornado and working great on its own.
Installed RabbitMQ (apt-get install rabbitmq-server).
Installed Tornado Celery (downloaded and unzipped the tar file).
Executed python -m pip install tornado-celery
Borrowed 2 example python files from above Github Repo and modified it.

我的任务代码段代码（myTornadoTasks.py）是：

import os
import time
from datetime import datetime

from celery import Celery
from celery import task

celery = Celery("myTornadoTasks", broker="amqp://")
celery.conf.CELERY_RESULT_BACKEND = os.environ.get('CELERY_RESULT_BACKEND', 'amqp')

@celery.task
def add(x, y):
    return int(x) + int(y)

    ..... some more code 

@celery.task
def error(msg):
    raise Exception(msg)


if __name__ == "__main__":
   celery.start()

我使用芹菜工人-A myTornadoTasks --concurrency = 4开始任务。这里一切正常。

我的Tornado Celery代码段（myTornadoCelery.py）是：

from tornado import gen 
from tornado import ioloop 
from tornado.web import asynchronous, RequestHandler, Application

import myTornadoTasks

import tcelery tcelery.setup_nonblocking_producer()

class AsyncHandler(RequestHandler):
    @asynchronous
    def get(self):
        myTornadoTasks.sleep.apply_async(args=[3], callback=self.on_result)

    def on_result(self, response):
        self.write(str(response.result))
        self.finish()

... some more code

class GenMultipleAsyncHandler(RequestHandler):
    @asynchronous
    @gen.coroutine
    def get(self):
        r1, r2 = yield [gen.Task(myTornadoTasks.sleep.apply_async, args=[2]),
                        gen.Task(myTornadoTasks.add.apply_async, args=[1, 2])]
        self.write(str(r1.result))
        self.write(str(r2.result))
        self.finish()

application = Application([
    (r"/async-sleep", AsyncHandler),
    (r"/gen-async-sleep", GenAsyncHandler),
    (r"/gen-async-sleep-add", GenMultipleAsyncHandler),
])


if __name__ == "__main__":
    application.listen(8887)
    ioloop.IOLoop.instance().start()

我使用“python myTornadoCelery.py”启动Tornado。没有错误。我打开一个浏览器并输入“http://localhost:8887/gen-async-sleep-add”，浏览器继续旋转。我可以看到Celery收到并执行的任务。我没有在浏览器上看到返回的任务ID等。如果我在GenMultipleAsyncHandler中放入简单的print语句，我看不到在Yield命令之后执行的操作。我必须杀死浏览器。如果我尝试任何其他Tornado请求处理程序，也会发生同样的事情。我做错了什么或错过了什么？

由于

浏览器客户端挂在Tornado - Celery请求

0 个答案: