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https://issues.apache.org/jira/browse/TAJO-665?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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hyoungjunkim updated TAJO-665:
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Attachment: TAJO-665.patch
I changed int to long in ExternalSortExec class.
Please review this patch.
> sort buffer size must be dealt as long type values.
> ---------------------------------------------------
>
> Key: TAJO-665
> URL: https://issues.apache.org/jira/browse/TAJO-665
> Project: Tajo
> Issue Type: Improvement
> Reporter: Hyunsik Choi
> Assignee: hyoungjunkim
> Fix For: 0.8-incubating, 1.0-incubating
>
> Attachments: TAJO-665.patch
>
>
> sort buffer size (tajo.executor.external-sort.buffer-mb in TajoConf) is used
> to determine in-memory buffer for external merge sort. Currently, its type is
> integer. So, if users can set more than 2GB to sort buffer size, external
> merge operator will meet negative sort buffer size. Finally, it will cause
> significant performance degradation.
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