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From "Ahmed Radwan (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-3493) Add the default mapreduce.shuffle.port property to mapred-default.xml
Date Thu, 01 Dec 2011 09:37:40 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-3493?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ahmed Radwan updated MAPREDUCE-3493:
------------------------------------

          Component/s: mrv2
    Affects Version/s: 0.23.0
    
> Add the default mapreduce.shuffle.port property to mapred-default.xml
> ---------------------------------------------------------------------
>
>                 Key: MAPREDUCE-3493
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3493
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2
>    Affects Versions: 0.23.0
>            Reporter: Ahmed Radwan
>            Assignee: Ahmed Radwan
>            Priority: Minor
>
> I faced this issue when trying to run multiple Hadoop MR2 instances on the same node.
The default value for this property is hardcoded in the ShuffleHandler.java class so it results
in port conflicts. The issue is resolved if you set the property value in your conf files.
But the absence of this property from *-default.xml files is confusing. So It'll be cleaner
to move this property to mapred-default.xml, so its default value can be easily identified
and changed if needed. 

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