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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-1295) We need a job trace manipulator to build gridmix runs.
Date Wed, 23 Dec 2009 02:07:30 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-1295?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12793893#action_12793893
] 

Hadoop QA commented on MAPREDUCE-1295:
--------------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12428754/mapreduce-1295--2009-12-22.patch
  against trunk revision 893055.

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 6 new or modified tests.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 findbugs.  The patch does not introduce any new Findbugs warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.

    +1 core tests.  The patch passed core unit tests.

    -1 contrib tests.  The patch failed contrib unit tests.

Test results: http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h6.grid.sp2.yahoo.net/335/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h6.grid.sp2.yahoo.net/335/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h6.grid.sp2.yahoo.net/335/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h6.grid.sp2.yahoo.net/335/console

This message is automatically generated.

> 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
>         Attachments: mapreduce-1295--2009-12-17.patch, mapreduce-1295--2009-12-21.patch,
mapreduce-1295--2009-12-22.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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