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From "Gopal V (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-16208) Vectorization: ProcessingModeHashAggregate::sumBatchSize is never reset
Date Tue, 14 Mar 2017 23:13:41 GMT

     [ https://issues.apache.org/jira/browse/HIVE-16208?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Gopal V updated HIVE-16208:
---------------------------
    Description: When processing >2x the hash-table size in the vectorized group-by, the
check for fall-back to streaming is wrong because {{sumBatchSize*minReduction}} is not reset
when processing the next split.  (was: When processing >2x the hash-table size in the vectorized
group-by, the check for fall-back to streaming is wrong because {{sumBatchSize*minReduction}}
is not modified by a partial flush or a full flush.)

> Vectorization: ProcessingModeHashAggregate::sumBatchSize is never reset
> -----------------------------------------------------------------------
>
>                 Key: HIVE-16208
>                 URL: https://issues.apache.org/jira/browse/HIVE-16208
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Gopal V
>
> When processing >2x the hash-table size in the vectorized group-by, the check for
fall-back to streaming is wrong because {{sumBatchSize*minReduction}} is not reset when processing
the next split.



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