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Posted to issues@spark.apache.org by "Hyukjin Kwon (JIRA)" <ji...@apache.org> on 2019/05/21 04:13:53 UTC

[jira] [Resolved] (SPARK-18636) UnsafeShuffleWriter and DiskBlockObjectWriter do not consider encryption / compression in metrics

     [ https://issues.apache.org/jira/browse/SPARK-18636?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hyukjin Kwon resolved SPARK-18636.
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    Resolution: Incomplete

> UnsafeShuffleWriter and DiskBlockObjectWriter do not consider encryption / compression in metrics
> -------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-18636
>                 URL: https://issues.apache.org/jira/browse/SPARK-18636
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core
>    Affects Versions: 2.0.0
>            Reporter: Marcelo Vanzin
>            Priority: Minor
>              Labels: bulk-closed
>
> The code in {{UnsafeShuffleWriter}} and {{DiskBlockObjectWriter}} only wraps the file output stream when collecting metrics, so it does not count the time it takes to compress and / or encrypt the data. This makes the metrics a little less accurate than they should be.



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