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From "ASF GitHub Bot (Jira)" <j...@apache.org>
Subject [jira] [Work logged] (HIVE-20368) Remove VectorTopNKeyOperator lock
Date Tue, 16 Jun 2020 16:54:02 GMT

     [ https://issues.apache.org/jira/browse/HIVE-20368?focusedWorklogId=446677&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-446677
]

ASF GitHub Bot logged work on HIVE-20368:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 16/Jun/20 16:53
            Start Date: 16/Jun/20 16:53
    Worklog Time Spent: 10m 
      Work Description: github-actions[bot] closed pull request #414:
URL: https://github.com/apache/hive/pull/414


   


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Issue Time Tracking
-------------------

    Worklog Id:     (was: 446677)
    Time Spent: 20m  (was: 10m)

> Remove VectorTopNKeyOperator lock
> ---------------------------------
>
>                 Key: HIVE-20368
>                 URL: https://issues.apache.org/jira/browse/HIVE-20368
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Teddy Choi
>            Assignee: Teddy Choi
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 4.0.0, 3.2.0
>
>         Attachments: HIVE-20368.1.patch, HIVE-20368.2.patch, HIVE-20368.2.patch
>
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> VectorTopNKeyOperator has a lock in line 199 as following.
> {code:java}
> priorityQueue.offer(WritableUtils.clone(keysWritable, getConfiguration()));
> {code}
> WritableUtils.clone calls Confgiruation.getClassByNameOrNull that has synchronized block.
So it needs to run without locks.



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