Get result not working with amqp backend in Ubuntu 20.04

[Daniyal-Javani]

Python client works fine:

>>> from tasks import add
>>> result = add.delay(4, 6)
>>> result.get(timeout=1)
10

But I receive the following error on celery-php client

PHP Fatal error:  Uncaught Celery\CeleryTimeoutException: AMQP task tasks.add([2,2]) did not return after 10 seconds in /vendor/massivescale/celery-php/src/AsyncResult.php:181

Could you please help me to solve this issue?

[gjedeer]

Are you sure you're using a supported version of Celery?

[ergonlogic]

I'm also running Ubuntu 20.04. While the Redis backend works, switching to the AMQP backend fails to return any results from tasks. FWIW, I can see that the tasks succeed in Flower.

Here's what the README currently states are the latest tested versions:

Package	Last version tested	20.04 version
PECL-AMQP	1.4	1.9.4-3ubuntu1
PHP-amqplib	2.5.1	2.11.0-2
Celery (via pip)	4.?	5.2.1

[gjedeer]

@ergonlogic yeah, I should probably archive this project as it's unmaintained. Maybe one of the forks is kept updated?

If you find something that works for up-to-date celery, let me know please, so that I can tell other users to switch.