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https://issues.apache.org/jira/browse/HADOOP-3442?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12602554#action_12602554
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eric baldeschwieler commented on HADOOP-3442:
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Is this a new bug? Has the sort code been change recently or something that
feeds it?
Don't the classic texts have chapters on pivot selection?
Here are some references (and support for runping's randomization suggestion)
- http://en.wikipedia.org/wiki/Quicksort
> QuickSort may get into unbounded recursion
> ------------------------------------------
>
> Key: HADOOP-3442
> URL: https://issues.apache.org/jira/browse/HADOOP-3442
> Project: Hadoop Core
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.17.0
> Reporter: Runping Qi
> Assignee: Chris Douglas
> Attachments: 3442-0.patch, 3442-0v17.patch, CheckSortBuffer.java,
> HADOOP-3442.patch, overflow.zip, spillbuffers.patch
>
>
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