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https://issues.apache.org/jira/browse/MAPREDUCE-220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12897328#action_12897328
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Arun C Murthy commented on MAPREDUCE-220:
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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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