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Posted to issues@spark.apache.org by "Hyukjin Kwon (JIRA)" <ji...@apache.org> on 2019/05/21 04:38:08 UTC

[jira] [Resolved] (SPARK-8454) Update ShuffleBlockFetcherIterator.next to close previous stream when returning a new one

     [ https://issues.apache.org/jira/browse/SPARK-8454?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hyukjin Kwon resolved SPARK-8454.
---------------------------------
    Resolution: Incomplete

> Update ShuffleBlockFetcherIterator.next to close previous stream when returning a new one
> -----------------------------------------------------------------------------------------
>
>                 Key: SPARK-8454
>                 URL: https://issues.apache.org/jira/browse/SPARK-8454
>             Project: Spark
>          Issue Type: Improvement
>          Components: Block Manager
>            Reporter: Matt Massie
>            Priority: Major
>              Labels: bulk-closed
>
> For context, see the PR comments at https://github.com/apache/spark/pull/6423#discussion_r31370774
> The current HashShuffleReader closes the input stream when all records have been read by using a NextIterator. However, we want the ShuffleBlockFetcherIterator to be more defensive about closing files and releasing memory to protect against other ShuffleReaders which may not.



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