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From "Vinod Kumar Vavilapalli (JIRA)" <j...@apache.org>
Subject [jira] [Reopened] (MAPREDUCE-5036) Default shuffle handler port should not be 8080
Date Thu, 06 Jun 2013 20:00:21 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-5036?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vinod Kumar Vavilapalli reopened MAPREDUCE-5036:
------------------------------------------------


*Sigh* I totally missed this.

In reality we don't need this config at all. We should just bind to an ephemeral port. The
AM and containers already have a way of learning all the meta information for aux services.
                
> Default shuffle handler port should not be 8080
> -----------------------------------------------
>
>                 Key: MAPREDUCE-5036
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5036
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>    Affects Versions: 2.0.3-alpha
>            Reporter: Sandy Ryza
>            Assignee: Sandy Ryza
>             Fix For: 2.1.0-beta
>
>         Attachments: MAPREDUCE-5036-13562.patch, MAPREDUCE-5036.patch
>
>
> The shuffle handler port (mapreduce.shuffle.port) defaults to 8080.  This is a pretty
common port for web services, and is likely to cause unnecessary port conflicts.

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