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Posted to issues@hive.apache.org by "Jesus Camacho Rodriguez (Jira)" <ji...@apache.org> on 2020/04/24 17:05:00 UTC
[jira] [Commented] (HIVE-23298) Disable RS deduplication step in
Optimizer if it is run in TezCompiler
[ https://issues.apache.org/jira/browse/HIVE-23298?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17091750#comment-17091750 ]
Jesus Camacho Rodriguez commented on HIVE-23298:
------------------------------------------------
Uploaded a patch to check whether this may cause any regressions.
> Disable RS deduplication step in Optimizer if it is run in TezCompiler
> ----------------------------------------------------------------------
>
> Key: HIVE-23298
> URL: https://issues.apache.org/jira/browse/HIVE-23298
> Project: Hive
> Issue Type: Improvement
> Components: Physical Optimizer
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Priority: Major
> Attachments: HIVE-23298.patch
>
>
> HIVE-20703 introduced an additional RS deduplication step in TezCompiler. We could possibly try to disable the one that runs in {{Optimizer}} if we are using Tez so we do not run the optimization twice.
> This issue is to explore that possibility.
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