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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-931) rumen should use its own interpolation classes to create runtimes for simulated tasks
Date Sun, 18 Oct 2009 20:01:31 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-931?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12767121#action_12767121
] 

Hudson commented on MAPREDUCE-931:
----------------------------------

Integrated in Hadoop-Mapreduce-trunk-Commit #81 (See [http://hudson.zones.apache.org/hudson/job/Hadoop-Mapreduce-trunk-Commit/81/])
    . Use built-in interpolation classes for making up task
runtimes in Rumen. Contributed by Dick King


> rumen should use its own interpolation classes to create runtimes for simulated tasks
> -------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-931
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-931
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>            Reporter: Dick King
>            Assignee: Dick King
>            Priority: Minor
>             Fix For: 0.21.0
>
>         Attachments: MAPREDUCE-931--2009-09-16--1633.patch, patch-931-b.patch
>
>
> Currently, when a simulator or benchmark is running and simulating hadoop jobs using
rumen data, and rumen's runtime system is used to get execution times for the tasks in the
simulated jobs, rumen would use some ad hoc code, despite the fact that rumen has a perfectly
good interpolation framework to generate random variables that fit discrete CDFs.
> We should use the interpolation framework.

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