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From "Scott Chen (JIRA)" <j...@apache.org>
Subject [jira] Updated: (MAPREDUCE-220) Collecting cpu and memory usage for MapReduce tasks
Date Sat, 07 Aug 2010 04:07:25 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-220?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Scott Chen updated MAPREDUCE-220:

    Attachment: MAPREDUCE-220-20100806.txt

Hey Eli,

I think returning a tuple is a very good idea. I updated the patch based on this suggestion.

For the sleep time, when I tested it I increase it because I thought I have to wait some time
for the update counters.
But the counters will be updated at the very beginning of the task. So I changed it back in
the patch.
Thanks for the review,


> 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-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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