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Posted to commits@airflow.apache.org by GitBox <gi...@apache.org> on 2021/02/17 14:15:54 UTC

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

leonsmith commented on issue #14063:
URL: https://github.com/apache/airflow/issues/14063#issuecomment-780585103


   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`


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