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From "Hong Tang (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-220) Collecting cpu and memory usage for MapReduce tasks
Date Sat, 21 Nov 2009 09:22:43 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12780938#action_12780938

Hong Tang commented on MAPREDUCE-220:

bq. What can these two stats possibly be used for?
This would allow us to tell whether a sudden decrease/increase of cpu or memory usage is caused
by the spawning of new processes.

> 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
>            Reporter: Hong Tang
>            Assignee: Scott Chen
> It would be nice for TaskTracker to collect cpu and memory usage for individual Map or
Reduce tasks over time.

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