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https://issues.apache.org/jira/browse/HIVE-11407?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14646970#comment-14646970
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Thejas M Nair commented on HIVE-11407:
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In the case in description, the OOM happened in HS2 because of embedded
metastore being used, if it were remote metastore server, the OOM would happen
in the metastore server.
> JDBC DatabaseMetaData.getTables with large no of tables call leads to HS2 OOM
> ------------------------------------------------------------------------------
>
> Key: HIVE-11407
> URL: https://issues.apache.org/jira/browse/HIVE-11407
> Project: Hive
> Issue Type: Bug
> Components: HiveServer2
> Reporter: Thejas M Nair
> Assignee: Sushanth Sowmyan
>
> With around 7000 tables having around 1500 columns each, and 512MB of HS2
> memory, I am able to reproduce this OOM .
> Most of the memory is consumed by the datanucleus objects.
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