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Re: celery problem, AttributeError: async


celery 4.1.1 was just released last night which has all the async problems fixed:

https://github.com/celery/celery/commits/v4.1.1

I'll test this out, and then submit a PR to bump airflow's celery version to 4.1.1

--
Craig

On 2018/05/21 07:20:50, Craig Rodrigues <crodr001@xxxxxxxxx> wrote: 
> Hi,
> 
> I used a requiremens.txt file with these three lines:
> 
> git+https://github.com/apache/incubator-airflow@v1-10-test#egg=apache-airflow[celery,crypto,emr,hive,hdfs,ldap,mysql,postgres,redis,slack,s3]
> celery>=4.2.0rc3
> kombu>=4.2.0
> 
> 
> I did
> 
> pip install -r requirements.txt
> 
> When I started my worker, I got:
> 
> [2018-05-21 06:39:23,980] {__init__.py:48} INFO - Using executor CeleryExecutor
> Traceback (most recent call last):
>   File "/bin/airflow", line 32, in <module>
>     args.func(args)
>   File "/usr/lib/python2.7/site-packages/airflow/utils/cli.py", line 74, in wrapper
>     return f(*args, **kwargs)
>   File "/usr/lib/python2.7/site-packages/airflow/bin/cli.py", line 959, in worker
>     worker.run(**options)
>   File "/usr/lib/python2.7/site-packages/celery/bin/worker.py", line 257, in run
>     **kwargs)
>   File "/usr/lib/python2.7/site-packages/celery/worker/worker.py", line 101, in __init__
>     self.setup_instance(**self.prepare_args(**kwargs))
>   File "/usr/lib/python2.7/site-packages/celery/worker/worker.py", line 124, in setup_instance
>     self.should_use_eventloop() if use_eventloop is None
>   File "/usr/lib/python2.7/site-packages/celery/worker/worker.py", line 243, in should_use_eve
>     self._conninfo.transport.implements.async and
>   File "/usr/lib/python2.7/site-packages/kombu/transport/base.py", line 125, in __getattr__
>     raise AttributeError(key)
> AttributeError: async
> 
> 
> 
> I reported this as a bug in celery here:
> 
> https://github.com/celery/celery/issues/4747
> 
> It turns out that this is a known problem.  It looks like in kombu, they
> renamed a bunch of uses of "async" to "asynchronous", to not clash with the new
> 'async' keyword in Python 3.7.
> 
> In celery, they are catching up and doing the same rename.  
> Almost at the same time that I reported this bug, the issue was fixed in the master branch of celery:
> 
> https://github.com/celery/celery/commit/c8ef7ad60b72a194654c58beb04a1d65cd0435ad
> 
> Hopefully the versions of kombu and celery will stabilize so that it all works properly with airflow.
> 
> --
> Craig
> 
> 
>