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From "Hive QA (Jira)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-23409) If TezSession application reopen fails for Timeline service down, default TezSession from SessionPool is closed after a retry
Date Fri, 08 May 2020 14:06:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-23409?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17102614#comment-17102614
] 

Hive QA commented on HIVE-23409:
--------------------------------



Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/13002361/HIVE-23409.patch

{color:red}ERROR:{color} -1 due to no test(s) being added or modified.

{color:green}SUCCESS:{color} +1 due to 17240 tests passed

Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/22204/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/22204/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-22204/

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: 13002361 - PreCommit-HIVE-Build

> If TezSession application reopen fails for Timeline service down, default TezSession
from SessionPool is closed after a retry
> -----------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-23409
>                 URL: https://issues.apache.org/jira/browse/HIVE-23409
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Naresh P R
>            Assignee: Naresh P R
>            Priority: Major
>         Attachments: HIVE-23409.patch
>
>
> we are closing a default session from TezSessionPool at here.
> [https://github.com/apache/hive/blob/master/ql/src/java/org/apache/hadoop/hive/ql/exec/tez/TezTask.java#L589]
> If all the sessions in a pool are destroyed, queries wait indefinitely at TezSessionPool.getSession
until HS2 restarts after other service recoveries.
> [HiveServer2-Background-Pool: Thread-12345]: tez.TezSessionPoolManager (:()) - We are
closing a default session because of retry failure.
> It's better if we allow retry & fail than hung.



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