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From "Apache Spark (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-22721) BytesToBytesMap peak memory usage not accurate after reset()
Date Thu, 07 Dec 2017 21:32:00 GMT

    [ https://issues.apache.org/jira/browse/SPARK-22721?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16282566#comment-16282566
] 

Apache Spark commented on SPARK-22721:
--------------------------------------

User 'juliuszsompolski' has created a pull request for this issue:
https://github.com/apache/spark/pull/19923

> BytesToBytesMap peak memory usage not accurate after reset()
> ------------------------------------------------------------
>
>                 Key: SPARK-22721
>                 URL: https://issues.apache.org/jira/browse/SPARK-22721
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core
>    Affects Versions: 2.2.0
>            Reporter: Juliusz Sompolski
>            Assignee: Juliusz Sompolski
>             Fix For: 2.3.0
>
>
> BytesToBytesMap doesn't update peak memory usage before shrinking back to initial capacity
in reset(), so after a disk spill one never knows what was the size of hash table was before
spilling.



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