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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-5797) Better distribution in the PerformanceEvaluation MapReduce when rows run to the Billions
Date Sat, 09 May 2009 05:36:45 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-5797?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

stack updated HADOOP-5797:
--------------------------

    Attachment: pe.java

Randomize the way we write the splits.

> Better distribution in the PerformanceEvaluation MapReduce when rows run to the Billions
> ----------------------------------------------------------------------------------------
>
>                 Key: HADOOP-5797
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5797
>             Project: Hadoop Core
>          Issue Type: Bug
>            Reporter: stack
>            Assignee: stack
>             Fix For: 0.20.0
>
>         Attachments: pe.java
>
>
> Performance Evaluation when the number of clients was large (and thus number of rows
to input) was clumping.... so we'd beat up on one box then the next.

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