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https://issues.apache.org/jira/browse/BEAM-8618?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17019717#comment-17019717
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Boyuan Zhang commented on BEAM-8618:
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Thanks for your update!

> Tear down unused DoFns periodically in Python SDK harness
> ---------------------------------------------------------
>
>                 Key: BEAM-8618
>                 URL: https://issues.apache.org/jira/browse/BEAM-8618
>             Project: Beam
>          Issue Type: Improvement
>          Components: sdk-py-harness
>            Reporter: sunjincheng
>            Assignee: sunjincheng
>            Priority: Major
>             Fix For: 2.20.0
>
>
> Per the discussion in the ML, detail can be found [1],  the teardown of DoFns 
> should be supported in the portability framework. It happens at two places:
> 1) Upon the control service termination
> 2) Tear down the unused DoFns periodically
> The aim of this JIRA is to add support for tear down the unused DoFns 
> periodically in Python SDK harness.
> [1] 
> https://lists.apache.org/thread.html/0c4a4cf83cf2e35c3dfeb9d906e26cd82d3820968ba6f862f91739e4@%3Cdev.beam.apache.org%3E



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