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From "Amareshwari Sriramadasu (JIRA)" <j...@apache.org>
Subject [jira] Updated: (MAPREDUCE-2021) CombineFileInputFormat returns duplicate hostnames in split locations
Date Fri, 20 Aug 2010 05:48:16 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-2021?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Amareshwari Sriramadasu updated MAPREDUCE-2021:
-----------------------------------------------

    Status: Patch Available  (was: Open)

test-patch result:
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     [exec] +1 overall.
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     [exec]     +1 @author.  The patch does not contain any @author tags.
     [exec]
     [exec]     +1 tests included.  The patch appears to include 3 new or modified tests.
     [exec]
     [exec]     +1 javadoc.  The javadoc tool did not generate any warning messages.
     [exec]
     [exec]     +1 javac.  The applied patch does not increase the total number of javac compiler
warnings.
     [exec]
     [exec]     +1 findbugs.  The patch does not introduce any new Findbugs warnings.
     [exec]
     [exec]     +1 release audit.  The applied patch does not increase the total number of
release audit warnings.
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{noformat}

> CombineFileInputFormat returns duplicate  hostnames in split locations
> ----------------------------------------------------------------------
>
>                 Key: MAPREDUCE-2021
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2021
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: client
>    Affects Versions: 0.20.2
>            Reporter: Amareshwari Sriramadasu
>            Assignee: Amareshwari Sriramadasu
>             Fix For: 0.22.0
>
>         Attachments: patch-2021.txt
>
>
> CombineFileInputFormat.getSplits creates splits with duplicate locations. It adds locations
of the files in the split to an ArrayList; if all the files are on same location, the location
is added again and again. Instead, it should add it to a Set instead of List to avoid duplicates.

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