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Posted to issues@hive.apache.org by "Sergey Shelukhin (JIRA)" <ji...@apache.org> on 2017/06/05 21:34:04 UTC

[jira] [Updated] (HIVE-16571) HiveServer2: Prefer LIFO over round-robin for Tez session reuse

     [ https://issues.apache.org/jira/browse/HIVE-16571?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sergey Shelukhin updated HIVE-16571:
------------------------------------
       Resolution: Fixed
    Fix Version/s: 3.0.0
           Status: Resolved  (was: Patch Available)

Committed to master

> HiveServer2: Prefer LIFO over round-robin for Tez session reuse
> ---------------------------------------------------------------
>
>                 Key: HIVE-16571
>                 URL: https://issues.apache.org/jira/browse/HIVE-16571
>             Project: Hive
>          Issue Type: Improvement
>          Components: HiveServer2, Tez
>    Affects Versions: 3.0.0
>            Reporter: Gopal V
>            Assignee: Gopal V
>             Fix For: 3.0.0
>
>         Attachments: HIVE-16571.2.patch, HIVE-16571.patch
>
>
> Currently Tez session reuse is entirely round-robin, which means a single user might have to run upto 32 queries before reusing a warm session on a HiveServer2.
> This is not the case when session reuse is disabled, with a user warming up their session on the 1st query.



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