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From "Chris Douglas (JIRA)" <j...@apache.org>
Subject [jira] Updated: (MAPREDUCE-1309) I want to change the rumen job trace generator to use a more modular internal structure, to allow for more input log formats
Date Wed, 23 Dec 2009 01:43:30 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-1309?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chris Douglas updated MAPREDUCE-1309:
-------------------------------------

    Status: Open  (was: Patch Available)

Unfortunately, the patch does not compile against trunk (related to MAPREDUCE-1016?):
{noformat}
     [exec] compile-tools:
     [exec]     [javac] Compiling 69 source files to /grid/0/hudson/hudson-slave/workspace/\
     Mapreduce-Patch-h6.grid.sp2.yahoo.net/trunk/build/tools
     [exec]     [javac] /grid/0/hudson/hudson-slave/workspace/Mapreduce-Patch-h6.grid.sp2.yahoo.net/trunk/\
     src/tools/org/apache/hadoop/tools/rumen/LoggedTask.java:178: cannot find symbol
     [exec]     [javac] symbol  : class Counters
     [exec]     [javac] location: interface org.apache.hadoop.mapreduce.jobhistory.Events
     [exec]     [javac]   private void incorporateMapCounters(Events.Counters counters) {
{noformat}

> I want to change the rumen job trace generator to use a more modular internal structure,
to allow for more input log formats 
> -----------------------------------------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-1309
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1309
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>            Reporter: Dick King
>            Assignee: Dick King
>         Attachments: demuxer-plus-concatenated-files--2009-12-21.patch
>
>
> There are two orthogonal questions to answer when processing a job tracker log: how will
the logs and the xml configuration files be packaged, and in which release of hadoop map/reduce
were the logs generated?  The existing rumen only has a couple of answers to this question.
 The new engine will handle three answers to the version question: 0.18, 0.20 and current,
and two answers to the packaging question: separate files with names derived from the job
ID, and concatenated files with a header between sections [used for easier file interchange].

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