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From "Vinod Kumar Vavilapalli (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-3815) Data Locality suffers if the AM asks for containers using IPs instead of hostnames
Date Tue, 07 Feb 2012 22:01:00 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-3815?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vinod Kumar Vavilapalli updated MAPREDUCE-3815:
-----------------------------------------------

       Resolution: Fixed
    Fix Version/s: 0.23.1
     Release Note: Fixed MR AM to always use hostnames and never IPs when requesting containers
so that scheduler can give off data local containers correctly.
     Hadoop Flags: Reviewed
           Status: Resolved  (was: Patch Available)

I just committed this to trunk and branch-0.23. Thanks Sid!
                
> Data Locality suffers if the AM asks for containers using IPs instead of hostnames
> ----------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-3815
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3815
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>          Components: mrv2
>    Affects Versions: 0.23.0
>            Reporter: Siddharth Seth
>            Assignee: Siddharth Seth
>            Priority: Critical
>             Fix For: 0.23.1
>
>         Attachments: MR3815.txt
>
>
> BlockLocation.getHosts() returns IP addresses occasionally. Data locality is affected
- since the RM requires hostnames.

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