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From "Hive QA (Jira)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-23446) LLAP: Reduce IPC connection misses to AM for short queries
Date Tue, 12 May 2020 16:23:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-23446?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17105568#comment-17105568
] 

Hive QA commented on HIVE-23446:
--------------------------------



Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/13002711/HIVE-23446.1.patch

{color:green}SUCCESS:{color} +1 due to 1 test(s) being added or modified.

{color:green}SUCCESS:{color} +1 due to 17266 tests passed

Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/22287/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/22287/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-22287/

Messages:
{noformat}
Executing org.apache.hive.ptest.execution.TestCheckPhase
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.YetusPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
{noformat}

This message is automatically generated.

ATTACHMENT ID: 13002711 - PreCommit-HIVE-Build

> LLAP: Reduce IPC connection misses to AM for short queries
> ----------------------------------------------------------
>
>                 Key: HIVE-23446
>                 URL: https://issues.apache.org/jira/browse/HIVE-23446
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Rajesh Balamohan
>            Assignee: Rajesh Balamohan
>            Priority: Major
>         Attachments: HIVE-23446.1.patch
>
>
> [https://github.com/apache/hive/blob/master/llap-server/src/java/org/apache/hadoop/hive/llap/daemon/impl/QueryInfo.java#L343]
>  
> Umbilical UGI pool for is maintained at QueryInfo level. When there are lots of short
queries, this ends up missing IPC cache and ends up recreating threads/connections to the
same AM.
> It would be good to maintain this pool in {{ContainerRunnerImpl}} instead and recycle
as needed.
>  



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