[jira] [Assigned] (SPARK-3577) Add task metric to report spill time

["Wenchen Fan (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-3577?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wenchen Fan reassigned SPARK-3577:
----------------------------------

    Assignee: Sital Kedia

> Add task metric to report spill time
> ------------------------------------
>
>                 Key: SPARK-3577
>                 URL: https://issues.apache.org/jira/browse/SPARK-3577
>             Project: Spark
>          Issue Type: Bug
>          Components: Shuffle, Spark Core
>    Affects Versions: 1.1.0
>            Reporter: Kay Ousterhout
>            Assignee: Sital Kedia
>            Priority: Minor
>             Fix For: 2.3.0
>
>         Attachments: spill_size.jpg
>
>
> The {{ExternalSorter}} passes its own {{ShuffleWriteMetrics}} into {{ExternalSorter}}.  The write time recorded in those metrics is never used.  We should probably add task metrics to report this spill time, since for shuffles, this would have previously been reported as part of shuffle write time (with the original hash-based sorter).



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