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From "Hong Tang (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-1001) Reducing code duplication in Mumak
Date Fri, 03 Sep 2010 20:46:33 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-1001?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12906079#action_12906079
] 

Hong Tang commented on MAPREDUCE-1001:
--------------------------------------

+1 for fixing it!

> Reducing code duplication in Mumak
> ----------------------------------
>
>                 Key: MAPREDUCE-1001
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1001
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>            Reporter: Hong Tang
>
> The first release of Mumak (MAPREDUCE-728) introduces some coupling between the core
mapred code with Mumak code. Specifically, New constructors are added to JobTracker and JobInProgress
to allow simulator to subclass and alter JT/JIP behavior. This could be a code maintenance
overhead when new changes have to be ported to either the added constructors or the simulation
subclasses.
> It would be nice to refactor the constructors of JobTracker and JobInProgress to avoid
as much code duplication as possible.

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