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Posted to commits@airflow.apache.org by GitBox <gi...@apache.org> on 2021/01/04 20:41:40 UTC

[GitHub] [airflow] GreenGrassBlueOcean commented on issue #13317: ValueError: unsupported pickle protocol: 5

GreenGrassBlueOcean commented on issue #13317:
URL: https://github.com/apache/airflow/issues/13317#issuecomment-754206670


   This issue does also occur when running airflow with multiple nodes and airflow (1.10.11) has one of its nodes run in at higher python version in my case one node is running at 3.8.5. and another at 3.7.7.
   As indicated here: [(https://stackoverflow.com/questions/23582489/python-pickle-protocol-choice)]
   pickle protocol: 5 Protocol can only be used in python > 3.8.
   
   The remarkable thing however is that some dags run fine (even on the 3.8.5. node), and others have suddenly a problem and do not run at all any more. 


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