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Posted to commits@airflow.apache.org by GitBox <gi...@apache.org> on 2021/02/24 10:55:13 UTC

[GitHub] [airflow] DreamyWen commented on issue #14063: macos python3.8 AttributeError: Can't pickle local object 'CeleryExecutor.trigger_tasks..reset_signals'

DreamyWen commented on issue #14063:
URL: https://github.com/apache/airflow/issues/14063#issuecomment-784991362


   > Ditto same issue, did a bit of digging below.
   > 
   > So this looks to be a change in 3.8 on macosx and the default for multiprocessing changing.
   > 
   > We have AIRFLOW__CORE__MP_START_METHOD to tweak this behaviour in the scheduler but not such control in the celery executor.
   > 
   > You can however bypass this by running with `AIRFLOW__CELERY__SYNC_PARALLELISM=1`
   
   Hi, leonsmith. Thanks for the advise, i will try it later. I personally use python 3.7 on my mac because it's just a local test env.


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