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https://issues.apache.org/jira/browse/AIRFLOW-1667?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16364775#comment-16364775
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Josh Bacon commented on AIRFLOW-1667:
-------------------------------------

Thanks for the explanation on internals [~ashb]. I made some incorrect 
assumptions, my issue was unrelated and is now resolved. Logs shipping 
correctly.

> Remote log handlers don't upload logs on task finish
> ----------------------------------------------------
>
>                 Key: AIRFLOW-1667
>                 URL: https://issues.apache.org/jira/browse/AIRFLOW-1667
>             Project: Apache Airflow
>          Issue Type: Bug
>          Components: logging
>    Affects Versions: 1.9.0, 1.10.0
>            Reporter: Arthur Vigil
>            Priority: Major
>
> AIRFLOW-1385 revised logging for configurability, but the provided remote log 
> handlers (S3TaskHandler and GCSTaskHandler) only upload on close (flush is 
> left at the default implementation provided by `logging.FileHandler`). A 
> handler will be closed on process exit by `logging.shutdown()`, but depending 
> on the Executor used worker processes may not regularly shutdown, and can 
> very likely persist between tasks. This means during normal execution log 
> files are never uploaded.
> Need to find a way to flush remote log handlers in a timely manner, but 
> without hitting the target resources unnecessarily.



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