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From "Scott Chen (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-220) Collecting cpu and memory usage for MapReduce tasks
Date Fri, 06 Nov 2009 22:18:32 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12774447#action_12774447

Scott Chen commented on MAPREDUCE-220:

We can make TaskTracker reports its usage on CPU, memory, bandwidth to JobTracker. JobTracker
can use the information for scheduling tasks and profiling jobs.

One way to do this is to first make ProcfsProcessTree to collect the utilization information
(CPU, mem...) and write the information in TaskTrackerStatus.taskReports and send them with
the heartbeats. Then we can aggregate these information in JobInProgress to do job profiling
and scheduling.

> 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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