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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4710) Add peak memory usage counter for each task
Date Thu, 12 Dec 2013 01:57:07 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4710?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13845995#comment-13845995
] 

Hadoop QA commented on MAPREDUCE-4710:
--------------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12618338/mapreduce4710-v6.patch
  against trunk revision .

    {color:red}-1 patch{color}.  The patch command could not apply the patch.

Console output: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/4258//console

This message is automatically generated.

> Add peak memory usage counter for each task
> -------------------------------------------
>
>                 Key: MAPREDUCE-4710
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4710
>             Project: Hadoop Map/Reduce
>          Issue Type: New Feature
>          Components: task
>    Affects Versions: 1.0.2, trunk
>            Reporter: Cindy Li
>            Assignee: Cindy Li
>            Priority: Minor
>              Labels: patch
>             Fix For: trunk
>
>         Attachments: MAPREDUCE-4710-trunk.patch, mapreduce-4710-v1.0.2.patch, mapreduce-4710.patch,
mapreduce4710-v3.patch, mapreduce4710-v4.patch, mapreduce4710-v5.patch, mapreduce4710-v6.patch,
mapreduce4710.patch
>
>
> Each task has counters PHYSICAL_MEMORY_BYTES and VIRTUAL_MEMORY_BYTES, which are snapshots
of memory usage of that task. They are not sufficient for users to understand peak memory
usage by that task, e.g. in order to diagnose task failures, tune job parameters or change
application design. This new feature will add two more counters for each task: PHYSICAL_MEMORY_BYTES_MAX
and VIRTUAL_MEMORY_BYTES_MAX. 



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