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https://issues.apache.org/jira/browse/SPARK-25303?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16616381#comment-16616381
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Nikunj Bansal commented on SPARK-25303:
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Patch available at PR [#22424|https://github.com/apache/spark/pull/22424]
> A DStream that is checkpointed should allow its parent(s) to be removed and
> not persisted
> -----------------------------------------------------------------------------------------
>
> Key: SPARK-25303
> URL: https://issues.apache.org/jira/browse/SPARK-25303
> Project: Spark
> Issue Type: Bug
> Components: DStreams
> Affects Versions: 2.0.0, 2.0.1, 2.0.2, 2.1.0, 2.1.1, 2.1.2, 2.1.3, 2.2.0,
> 2.2.1, 2.2.2, 2.3.0, 2.3.1
> Reporter: Nikunj Bansal
> Priority: Major
> Labels: Streaming, streaming
>
> A checkpointed DStream is supposed to cut the lineage to its parent(s) such
> that any persisted RDDs for the parent(s) are removed. However, combined with
> the issue in SPARK-25302, they result in the Input Stream RDDs being
> persisted a lot longer than they are actually required.
> See also related bug SPARK-25302.
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