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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2016/01/07 08:17:39 UTC
[jira] [Commented] (SPARK-12688) Spill size metric does not update
for tungsten aggregation
[ https://issues.apache.org/jira/browse/SPARK-12688?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15086964#comment-15086964 ]
Apache Spark commented on SPARK-12688:
--------------------------------------
User 'carsonwang' has created a pull request for this issue:
https://github.com/apache/spark/pull/10634
> Spill size metric does not update for tungsten aggregation
> ----------------------------------------------------------
>
> Key: SPARK-12688
> URL: https://issues.apache.org/jira/browse/SPARK-12688
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 1.6.0
> Reporter: Carson Wang
> Priority: Minor
>
> When doing a sql aggregation in tungsten mode, the spill size metric may not update though there are data spilled. Because the data are stored in the `BytesToBytesMap` instead of `UnsafeExternalSorter`, the memory are freed when the map resets instead of when the sorter spills.
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