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https://issues.apache.org/jira/browse/HIVE-21723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16838496#comment-16838496
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Zoltan Haindrich commented on HIVE-21723:
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[~nkasinap] Could you please provide a full example?
> java.lang.OutOfMemoryError: GC overhead limit exceeded
> ------------------------------------------------------
>
> Key: HIVE-21723
> URL: https://issues.apache.org/jira/browse/HIVE-21723
> Project: Hive
> Issue Type: Bug
> Components: Query Processor
> Affects Versions: 3.1.1
> Reporter: naga prasad
> Priority: Critical
>
> while running a long query having joins and union all, throwing the below
> error using Apache Hive 3.1 server.
> +++[ODBC Apache Hive Wire Protocol driver][Apache Hive]Error running query:
> java.lang.OutOfMemoryError: GC overhead limit exceeded+
> +Query:+
> select * from (select * from GTABLE where GTABLE.INTEGERCOL < 3 UNION ALL
> select * from GTABLE2 where GTABLE2.INTEGERCOL = ?) GTABLE JOIN GTABLE2 ON
> (GTABLE.INTEGERCOL = GTABLE2.INTEGERCOL);
> Here the table GTABLE and GTABLE2 are having 1000 records with 15 columns.
>
> The same query is executing successfully with Apache Hive 2.3
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