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