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Posted to commits@airflow.apache.org by GitBox <gi...@apache.org> on 2021/04/22 23:42:16 UTC

[GitHub] [airflow] uranusjr commented on issue #15496: InvalidatePoolError

uranusjr commented on issue #15496:
URL: https://github.com/apache/airflow/issues/15496#issuecomment-825270133


   SQLAlchemy [already retries twice](https://github.com/zzzeek/sqlalchemy/blob/71ea06c958cd9f105ef0a9ae0621a75a8619421a/lib/sqlalchemy/pool/base.py#L782), and only bubbles up `InvalidatePoolError` (and `DisconnectionError` in general, which is a parent class) when that runs out. But still, some kind of back-off retry may be useful, especially since (if I understand the implementation correctly) SQLAlchemy retries the connection in quick succession, which I’m not sure is very useful.


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