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https://issues.apache.org/jira/browse/AIRFLOW-5343?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16931337#comment-16931337
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ASF GitHub Bot commented on AIRFLOW-5343:
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ashb commented on pull request #6034: [AIRFLOW-5343] Remove legacy way of
pessimistic disconnect handling
URL: https://github.com/apache/airflow/pull/6034
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> pool_pre_ping support for SQLAlchemy connection
> -----------------------------------------------
>
> Key: AIRFLOW-5343
> URL: https://issues.apache.org/jira/browse/AIRFLOW-5343
> Project: Apache Airflow
> Issue Type: Task
> Components: configuration
> Affects Versions: 1.10.4
> Reporter: Igor Khrol
> Priority: Minor
> Fix For: 1.10.6
>
>
> SQLalchemy supports connection check while returning it from the pool. There
> is a need to allow this parameter (`pool_pre_ping`) while creating the
> connection to database.
>
> [https://docs.sqlalchemy.org/en/13/core/pooling.html#disconnect-handling-pessimistic]
> [https://github.com/apache/airflow/blob/master/airflow/settings.py#L189]
>
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