[ https://issues.apache.org/jira/browse/MAPREDUCE-4273?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yu Gao updated MAPREDUCE-4273:
------------------------------

    Attachment: mapreduce-4273-branch-2.patch
    
> Make CombineFileInputFormat split result JDK independent
> --------------------------------------------------------
>
>                 Key: MAPREDUCE-4273
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4273
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: client
>    Affects Versions: 1.0.3
>            Reporter: Luke Lu
>            Assignee: Yu Gao
>         Attachments: mapreduce-4273-branch-1.patch, mapreduce-4273-branch-2.patch
>
>
> The split result of CombineFileInputFormat depends on the iteration order of  nodeToBlocks and rackToBlocks hash maps, which makes the result HashMap implementation hence JDK dependent.
> This is manifested as TestCombineFileInputFormat failures on alternative JDKs.

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