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From "Rushabh S Shah (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-6958) Shuffle audit logger should log size of shuffle transfer
Date Fri, 15 Sep 2017 20:56:00 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6958?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16168504#comment-16168504
] 

Rushabh S Shah commented on MAPREDUCE-6958:
-------------------------------------------

+1 ltgm non-binding.

> Shuffle audit logger should log size of shuffle transfer
> --------------------------------------------------------
>
>                 Key: MAPREDUCE-6958
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6958
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>            Reporter: Jason Lowe
>            Assignee: Jason Lowe
>            Priority: Minor
>         Attachments: MAPREDUCE-6958.001.patch, MAPREDUCE-6958.002.patch
>
>
> The shuffle audit logger currently logs the job ID and reducer ID but nothing about the
size of the requested transfer.  It calculates this as part of the HTTP response headers,
so it would be trivial to log the response size.  This would be very valuable for debugging
network traffic storms from the shuffle handler.



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