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From "Brock Noland (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-4709) Caching OIs in OIFactory should be disabled
Date Tue, 11 Jun 2013 08:47:21 GMT

    [ https://issues.apache.org/jira/browse/HIVE-4709?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13680314#comment-13680314
] 

Brock Noland commented on HIVE-4709:
------------------------------------

Hi, I see. So you have SUBMITVIACHILD via turned to false. I think it might still be possible
to hit this issue with HiveServer2 but I haven't seen it myself.
                
> Caching OIs in OIFactory should be disabled
> -------------------------------------------
>
>                 Key: HIVE-4709
>                 URL: https://issues.apache.org/jira/browse/HIVE-4709
>             Project: Hive
>          Issue Type: Improvement
>          Components: Query Processor
>            Reporter: Navis
>            Assignee: Navis
>         Attachments: HIVE-4709.D11199.1.patch
>
>
> OIFactory has various caches and most of them are accessed by key containing OIs. But
OIs are not forced to implement hashCode/equals and that is resulted to some kind of memory
leakage. 
> Considering the price of calculating/accessing hashmap, just removing those caches are
better solution, IMHO.

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