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https://issues.apache.org/jira/browse/TEZ-2732?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rajesh Balamohan updated TEZ-2732:
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Attachment: TEZ-2732.1.patch
> DefaultSorter throws ArrayIndex exceptions on 2047 Mb size sort buffers
> -----------------------------------------------------------------------
>
> Key: TEZ-2732
> URL: https://issues.apache.org/jira/browse/TEZ-2732
> Project: Apache Tez
> Issue Type: Bug
> Reporter: Rajesh Balamohan
> Assignee: Rajesh Balamohan
> Attachments: TEZ-2732.1.patch
>
>
> {noformat}
> kvbuffer.length = 2146435072 (2047 MB)
> Corner case: bufIndex=2026133899, kvbidx=523629312.
> distkvi = mod - i + j = 2146435072 - 2026133899 + 523629312 = 643930485
> newPos = (2026133899 + (max(.., min(643930485/2, 271128624))) (This would
> overflow)
> {noformat}
> Would be good to restrict the max allowed sort buffer to 1800 instead of
> 2047.
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