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Posted to issues@hive.apache.org by "Gopal V (JIRA)" <ji...@apache.org> on 2017/09/22 04:04:00 UTC

[jira] [Assigned] (HIVE-17573) LLAP: JDK9 support fixes

     [ https://issues.apache.org/jira/browse/HIVE-17573?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gopal V reassigned HIVE-17573:
------------------------------

    Assignee: Gopal V

> LLAP: JDK9 support fixes
> ------------------------
>
>                 Key: HIVE-17573
>                 URL: https://issues.apache.org/jira/browse/HIVE-17573
>             Project: Hive
>          Issue Type: Bug
>          Components: llap
>    Affects Versions: 3.0.0
>            Reporter: Gopal V
>            Assignee: Gopal V
>
> The perf diff between JDK8 -> JDK9 seems to be significant.  
> TPC-H Q6 on JDK8 takes 32s on a single node + 1 Tb scale warehouse. 
> TPC-H Q6 on JDK9 takes 19s on the same host + same data.
> The performance difference seems to come from better JIT and better NUMA handling.



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