为什么 celery 在 rabbit mq 中创建新队列？

Question

the function that send to celery is using the decorator poinitng to the queue that i want to use such:

@app.task(queue="celery")
def compare_from_database(row_id=None, database_name=None, table_name=None):
    ....

i created a script to check how many task i still have in the queue, just a while loop of the command

 rabbitmqctl list_queues

and parsing the line with "celery"

but since celery creates random queues i cant use that. why celery is creating new queues and not really sending it to the one i want?

Answer 1

I guess you are using rpc as your celery_result_backend . You can check out this link - https://tech.labs.oliverwyman.com/blog/2015/04/30/making-celery-play-nice-with-rabbitmq-and-bigwig/ where he explains that RPC backend will create queues for the task results.

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You can check my answer for more explanation about result-backend here => https://stackoverflow.com/a/62069822/6490744