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From "Rajesh Balamohan (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-21622) Provide an option to invoke `ReflectionUtil::newInstance` without storing in constructor_cache
Date Wed, 17 Apr 2019 09:40:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-21622?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Rajesh Balamohan updated HIVE-21622:
------------------------------------
    Attachment:     (was: Screenshot 2019-04-17 at 2.17.21 PM.png)

> Provide an option to invoke `ReflectionUtil::newInstance` without storing in constructor_cache
> ----------------------------------------------------------------------------------------------
>
>                 Key: HIVE-21622
>                 URL: https://issues.apache.org/jira/browse/HIVE-21622
>             Project: Hive
>          Issue Type: Bug
>          Components: HiveServer2
>            Reporter: Rajesh Balamohan
>            Priority: Trivial
>
> In certain cases, UDFs would be dynamically registered/deregistered often. This can clutter
"constructor_cache" of "ReflectionUtil" and cause memory pressure.
>  
> It would be good to provide an option to invoke ReflectionUtil without hitting constructor
cache.
> Attached profiler image has the details.



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