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