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https://issues.apache.org/jira/browse/HIVE-15665?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16165529#comment-16165529
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Sergey Shelukhin commented on HIVE-15665:
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Test failures are unrelated. [~prasanth_j] can you take a look at the update?
> LLAP: OrcFileMetadata objects in cache can impact heap usage
> ------------------------------------------------------------
>
> Key: HIVE-15665
> URL: https://issues.apache.org/jira/browse/HIVE-15665
> Project: Hive
> Issue Type: Improvement
> Components: llap
> Reporter: Rajesh Balamohan
> Assignee: Sergey Shelukhin
> Attachments: HIVE-15665.01.patch, HIVE-15665.02.patch,
> HIVE-15665.03.patch, HIVE-15665.04.patch, HIVE-15665.05.patch,
> HIVE-15665.06.patch, HIVE-15665.07.patch, HIVE-15665.08.patch,
> HIVE-15665.09.patch, HIVE-15665.10.patch, HIVE-15665.11.patch,
> HIVE-15665.patch
>
>
> OrcFileMetadata internally has filestats, stripestats etc which are allocated
> in heap. On large data sets, this could have an impact on the heap usage and
> the memory usage by different executors in LLAP.
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