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From "Chris Douglas (JIRA)" <j...@apache.org>
Subject [jira] Updated: (MAPREDUCE-712) RandomTextWriter example is CPU bound
Date Fri, 21 Aug 2009 01:30:14 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-712?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chris Douglas updated MAPREDUCE-712:
------------------------------------

       Resolution: Fixed
    Fix Version/s: 0.21.0
     Hadoop Flags: [Reviewed]
           Status: Resolved  (was: Patch Available)

I committed this.

> RandomTextWriter example is CPU bound
> -------------------------------------
>
>                 Key: MAPREDUCE-712
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-712
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: examples
>    Affects Versions: 0.20.1, 0.21.0
>         Environment: ~200 nodes cluster
> Each node has the following configuration:
> Processors:     2 x Xeon L5420 2.50GHz (8 cores) - Harpertown C0, 64-bit, quad-core (8
CPUs)
> 4 Disks
> 16 GB RAM
> Linux 2.6
> Hadoop version: trunk
>            Reporter: Khaled Elmeleegy
>            Assignee: Chris Douglas
>             Fix For: 0.21.0
>
>         Attachments: MR712-0.patch, MR712-1.patch
>
>
> Running the RandomTextWritter example job ( from the examples jar) pegs the machiens'
CPUs.

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