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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-1295) We need a job trace manipulator to build gridmix runs.
Date Sat, 09 Jan 2010 16:16:55 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-1295?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12798372#action_12798372

Hudson commented on MAPREDUCE-1295:

Integrated in Hadoop-Mapreduce-trunk #200 (See [http://hudson.zones.apache.org/hudson/job/Hadoop-Mapreduce-trunk/200/])

> We need a job trace manipulator to build gridmix runs.
> ------------------------------------------------------
>                 Key: MAPREDUCE-1295
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1295
>             Project: Hadoop Map/Reduce
>          Issue Type: New Feature
>            Reporter: Dick King
>            Assignee: Dick King
>             Fix For: 0.22.0
>         Attachments: mapreduce-1295--2009-12-17.patch, mapreduce-1295--2009-12-21.patch,
mapreduce-1295--2009-12-22.patch, mapreduce-1295--2009-12-23.patch, mapreduce-1297--2009-12-14.patch
> Rumen produces "job traces", which are JSON format files describing important aspects
of all jobs that are run [successfully or not] on a hadoop map/reduce cluster.  There are
two packages under development that will consume these trace files and produce actions in
that cluster or another cluster: gridmix3 [see jira MAPREDUCE-1124 ] and Mumak [a simulator
-- see MAPREDUCE-728 ].
> It would be useful to be able to do two things with job traces, so we can run experiments
using these two tools: change the duration, and change the density.  I would like to provide
a "folder", a tool that can wrap a long-duration execution trace to redistribute its jobs
over a shorter interval, and also change the density by duplicating or culling away jobs from
the folded combined job trace.

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