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在Heroku上安装Celery时出现“ [[Errno 111]连接被拒绝”错误

[英]Get “[Errno 111] Connection refused” error when mount Celery on Heroku

 原文  2014-07-15 07:54:30  9   1    python/ django/ heroku/ celery/ django-celery

问题描述

I was trying to use Celery to write a backend asynchronous process for my Django project. 我试图使用Celery为Django项目编写后端异步过程。 I use Rabbitmq as my task queue while using Cloudamqp with Heroku. 我将Rabbitamq用作我的任务队列，同时将Cloudamqp与Heroku一起使用。
The problem is: the whole project works perfectly on my own laptop(using localhost to test),while it didn't work on the production server. 问题是：整个项目可以在我自己的笔记本电脑上完美运行（使用localhost进行测试），而不能在生产服务器上运行。

This is the error message I got: [Errno 111] Connection refused 这是我收到的错误消息： [Errno 111] Connection refused

Then I did some research, I might be wrong but it seems that the problem is I already reached the limitation of number of worker can be used since i am using a free account for Heroku right now. 然后我做了一些研究，我可能是错的，但是问题似乎是我已经达到可以使用工作人员数量的限制，因为我现在正在为Heroku使用免费帐户。
I read about this:"But remember to tweak the BROKER_POOL_LIMIT if you're using the free plan. Set it to 1 and you should be good. If you have connection problems, try reduce the concurrency of both your web workers and in the celery worker." 我读到以下内容：“但是请记住，如果您使用的是免费计划，请调整BROKER_POOL_LIMIT。将其设置为1，就可以了。如果您遇到连接问题，请尝试减少网络工作者和celery的并发性工人。” but I am not sure how to do that. 但我不确定该怎么做。

Here is my setting.py: 这是我的setting.py： 

    BROKER_URL="amqp://paswzaog:0TwC3i7cBdTAKA9JE57EMm1xUzovFbry@turtle.rmq.cloudamqp.com/paswzaog"
    BROKER_POOL_LIMIT = 1
    CELERY_ACCEPT_CONTENT = ['json']
    CELERY_TASK_SERIALIZER = 'json'
    CELERY_RESULT_SERIALIZER = 'json'
    CELERY_RESULT_BACKEND='djcelery.backends.database:DatabaseBackend'
    CELERY_BEAT_SCHEDULER = 'djcelery.schedulers.DatabaseScheduler'
    CELERY_RESULT_BACKEND = 'amqp'
    CELERY_TASK_RESULT_EXPIRES = 18000  # 5 hours.`

Here is the error message: 这是错误消息： 

'[Errno 111] Connection refused
'/app/.heroku/python/bin',
'/app/.heroku/python/lib/python2.7/site-packages/setuptools-3.6-py2.7.egg',
'/app/.heroku/python/lib/python2.7/site-packages/pip-1.5.6-py2.7.egg',
'/app',
'/app/.heroku/python/lib/python27.zip',
'/app/.heroku/python/lib/python2.7',
'/app/.heroku/python/lib/python2.7/plat-linux2',
'/app/.heroku/python/lib/python2.7/lib-tk',
'/app/.heroku/python/lib/python2.7/lib-old',
'/app/.heroku/python/lib/python2.7/lib-dynload',
'/app/.heroku/python/lib/python2.7/site-packages',
'/app','

Did anybody has a similar problem before? 以前有人遇到过类似的问题吗？ or can someone recommend a thorough tutorial about how to do setting up stuff of Celery onto Heroku? 还是有人可以推荐有关如何在Heroku上设置Celery的详细教程？ Thanks in advance! 提前致谢！

1 个解决方案

解决方案1
 0  2014-07-16 02:21:23

It looks like your credentials might not be valid. 您的凭据似乎无效。 Either that or you have more than 1 concurrent connection. 或者，或者您有多个并发连接。

A good way to test this would be to scale your web servers to 0 (heroku scale web=0), then create a single worker (heroku scale worker=1) -- then tail your Heroku logs (heroku logs --tail) to see if your single worker can connect. 一个很好的测试方法是将您的Web服务器扩展到0（heroku scale web = 0），然后创建一个工作程序（heroku scale worker = 1）–然后将您的Heroku日志（heroku logs --tail）尾随看看您的单工是否可以连接。

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