[jira] [Resolved] (SPARK-5645) Track local bytes read for shuffles - update UI

["Kay Ousterhout (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-5645?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kay Ousterhout resolved SPARK-5645.
-----------------------------------
    Resolution: Fixed

> Track local bytes read for shuffles - update UI
> -----------------------------------------------
>
>                 Key: SPARK-5645
>                 URL: https://issues.apache.org/jira/browse/SPARK-5645
>             Project: Spark
>          Issue Type: New Feature
>          Components: Spark Core
>            Reporter: Kostas Sakellis
>            Assignee: Kay Ousterhout
>             Fix For: 1.3.0
>
>
> Currently we do not track the local bytes read for a shuffle read. The UI only shows the remote bytes read. This is pretty confusing to the user because:
> 1) In local mode all shuffle reads are local
> 2) the shuffle bytes written from the previous stage might not add up if there are some bytes that are read locally on the shuffle read side
> 3) With https://github.com/apache/spark/pull/4067 we display the total number of records so that won't line up with only showing the remote bytes read. 
> I propose we track the remote and local bytes read separately. In the UI show the total bytes read and in brackets show the remote bytes read for a shuffle. 



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