在RabbitMQ服务器中生成具有随机GUID的队列 [英] Queues with random GUID being generated in RabbitMQ server

问题描述

从交换'celeryresults'生成带有随机GUID的队列。

Queues with a random GUID are being generated comming from exchange 'celeryresults'.

这种情况是在我使用延迟方法从shell触发任务时发生的，但我忘记在延迟的参数列表中输入原始功能的参数。

This happened when I fired a task from the shell, using delay method, but I forgot to enter parameters of my original function in the arguments list of delay.

在运行芹菜工人的终端上显示错误：

Error displayed in terminal where I run the celery worker:

[2015-02-20 18:42:48,547: ERROR/MainProcess] Task customers.tasks.sendmail_task[1a4daf49-81bf-4122-8dea-2ee76c2a2ff8] raised unexpected: TypeError('sendmail_task() takes exactly 4 arguments (0 given)',)
Traceback (most recent call last):
  File "/home/cod/workspace/envs/cod/lib/python2.6/site-packages/celery/app/trace.py", line 240, in trace_task
R = retval = fun(*args, **kwargs)
File "/home/cod/workspace/envs/cod/lib/python2.6/site-packages/celery/app/trace.py", line 438, in __protected_call__
return self.run(*args, **kwargs)
TypeError: sendmail_task() takes exactly 4 arguments (0 given)

如何阻止随机队列的生成？为什么这些消息不使用默认队列？

How do I stop random queues from being generated? Why won't these messages use the default queue?

推荐答案

经纪人有区别（发送/接收消息）和后端（存储/获取任务结果）在芹菜中。听起来您好像同时使用RabbitMQ作为消息代理和结果后端。

There is a difference between the broker (sends/receives messages) and backend (stores/fetches task results) in celery. It sounds like you are using RabbitMQ both as the message broker and the result backend.

当将RabbitMQ用作结果后端时，celery为每个任务创建一个队列以暂时保留跟踪结果。 RabbitMQ结果后端对此进行了说明

When RabbitMQ is used as a result backend, celery creates one queue per task to temporarily keep track of the result. This is described in the RabbitMQ Result Backend section of the docs.

如果您不希望出现这种情况，则可以使用 CELERY_IGNORE_RESULT 或切换到结果后端设置。

If you don't want this behavior then you should either turn it off using CELERY_IGNORE_RESULT or switch to one of the other backend implementations listed in the Result Backend Settings.

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