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https://issues.apache.org/jira/browse/MAPREDUCE-4273?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Amir Sanjar updated MAPREDUCE-4273:
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Attachment: MAPREDUCE-4273-branch1-v2.patch
This patch will work with both IBM SDK and Oracle SDK 6.0.
impacted files: lib/input/TestCombineFileInputFormat.java and
lib/TestCombineFileInputFormat.java
Assumptions was made that original developer of CombineFileInputFormat class
was aware of HashMap characteristic. However, above testcases were implemented
as the order of element on HashMap are always constant.
> 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-branch1-v2.patch, mapreduce-4273-branch-2.patch,
> mapreduce-4273.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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