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From "Matt McCline (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-15892) Vectorization: Fast Hash tables need to do bounds checking during expand
Date Tue, 14 Feb 2017 20:41:41 GMT

     [ https://issues.apache.org/jira/browse/HIVE-15892?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Matt McCline updated HIVE-15892:
--------------------------------
    Attachment: HIVE-15892.02.patch

> Vectorization: Fast Hash tables need to do bounds checking during expand
> ------------------------------------------------------------------------
>
>                 Key: HIVE-15892
>                 URL: https://issues.apache.org/jira/browse/HIVE-15892
>             Project: Hive
>          Issue Type: Bug
>          Components: Hive
>            Reporter: Matt McCline
>            Assignee: Matt McCline
>            Priority: Critical
>         Attachments: HIVE-15892.01.patch, HIVE-15892.02.patch
>
>
> VectorMapJoinFastLongHashTable line 165 gets NegativeArraySizeException:
> {code}
> long[] newSlotPairs = new long[newSlotPairArraySize];
> {code}
> We need to add a size check... Java math for this wrapped around to negative:
> {code}
> int newSlotPairArraySize = newLogicalHashBucketCount * 2;
> {code}



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