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https://issues.apache.org/jira/browse/HIVE-27412?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17733163#comment-17733163
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Alagappan Maruthappan commented on HIVE-27412:
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The right fix for the issue seems to do a reset in OrcReader -
https://issues.apache.org/jira/browse/HIVE-27437
Closing this one
> Vectorization: VectorMapOperator does not reset VectorizedRowBatch after
> processing
> -----------------------------------------------------------------------------------
>
> Key: HIVE-27412
> URL: https://issues.apache.org/jira/browse/HIVE-27412
> Project: Hive
> Issue Type: Bug
> Reporter: Alagappan Maruthappan
> Assignee: Alagappan Maruthappan
> Priority: Major
> Labels: pull-request-available
>
> VectorMapOperator does not reset VectorizedRowBatch after processing.
> ListColumnVector and MapColumnVector keeps growing if they are not reset
> after each row batch is processed. So most of the time is spent just in
> resizing the array and the process runs forever.
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