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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-220) Collecting cpu and memory usage for MapReduce tasks
Date Wed, 11 Aug 2010 16:26:29 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12897328#action_12897328
] 

Arun C Murthy commented on MAPREDUCE-220:
-----------------------------------------

Scott, sorry for coming in late. 

I have a nit: we seem to create a new ProcfsBasedProcessTree each time - wouldn't it be easier
to re-use the object? Create it once and re-use it each time?

> Collecting cpu and memory usage for MapReduce tasks
> ---------------------------------------------------
>
>                 Key: MAPREDUCE-220
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-220
>             Project: Hadoop Map/Reduce
>          Issue Type: New Feature
>          Components: task, tasktracker
>            Reporter: Hong Tang
>            Assignee: Scott Chen
>             Fix For: 0.22.0
>
>         Attachments: MAPREDUCE-220-20100616.txt, MAPREDUCE-220-20100804.txt, MAPREDUCE-220-20100806.txt,
MAPREDUCE-220-20100809.txt, MAPREDUCE-220-v1.txt, MAPREDUCE-220.txt
>
>
> It would be nice for TaskTracker to collect cpu and memory usage for individual Map or
Reduce tasks over time.

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