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From "Rajesh Balamohan (Jira)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-23917) Reset key access count during eviction in VectorGroupByOperator
Date Wed, 29 Jul 2020 03:45:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-23917?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Rajesh Balamohan updated HIVE-23917:
------------------------------------
    Fix Version/s: 4.0.0
       Resolution: Fixed
           Status: Resolved  (was: Patch Available)

> Reset key access count during eviction in VectorGroupByOperator
> ---------------------------------------------------------------
>
>                 Key: HIVE-23917
>                 URL: https://issues.apache.org/jira/browse/HIVE-23917
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Rajesh Balamohan
>            Assignee: Rajesh Balamohan
>            Priority: Minor
>              Labels: pull-request-available
>             Fix For: 4.0.0
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> Follow up of https://issues.apache.org/jira/browse/HIVE-23843
> There can be a case (depending on data) where large number of entries in the aggregation
map, exceed the average access and it could prevent 10% flushing limit. Adding reset on the
evicted entries would help preventing this.



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