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https://issues.apache.org/jira/browse/HIVE-23843?focusedWorklogId=458451&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-458451
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ASF GitHub Bot logged work on HIVE-23843:
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Author: ASF GitHub Bot
Created on: 14/Jul/20 04:34
Start Date: 14/Jul/20 04:34
Worklog Time Spent: 10m
Work Description: rbalamohan opened a new pull request #1250:
URL: https://github.com/apache/hive/pull/1250
https://issues.apache.org/jira/browse/HIVE-23843
TestVectorGroupByOperator has been modified to run with and without
hive.vectorized.groupby.agg.enable.lrucache.
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Issue Time Tracking
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Worklog Id: (was: 458451)
Remaining Estimate: 0h
Time Spent: 10m
> Improve key evictions in VectorGroupByOperator
> ----------------------------------------------
>
> Key: HIVE-23843
> URL: https://issues.apache.org/jira/browse/HIVE-23843
> Project: Hive
> Issue Type: Improvement
> Components: Hive
> Reporter: Rajesh Balamohan
> Assignee: Rajesh Balamohan
> Priority: Major
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Keys in {{mapKeysAggregationBuffers}} are evicted in random order. Tasks also
> get into GC issues when multiple keys are involved in groupbys. It would be
> good to provide an option to have LRU based eviction for
> mapKeysAggregationBuffers.
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