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https://issues.apache.org/jira/browse/MAPREDUCE-4273?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13492713#comment-13492713
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Yu Gao commented on MAPREDUCE-4273:
-----------------------------------
org.apache.hadoop.mapred.TestClusterMRNotification fails as well without this
patch. It looks like a job state transition problem, and has been tracked by
MAPREDUCE-4774
> 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, 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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