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https://issues.apache.org/jira/browse/HIVE-8486?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14174308#comment-14174308
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Brock Noland commented on HIVE-8486:
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bq. In the Spark branch, we are not doing anything to estimate the number of
reducers.
What is {{SetSparkReducerParallelism}} doing then?
> TPC-DS Query 96 parallelism is not set correcly
> -----------------------------------------------
>
> Key: HIVE-8486
> URL: https://issues.apache.org/jira/browse/HIVE-8486
> Project: Hive
> Issue Type: Sub-task
> Components: Spark
> Reporter: Brock Noland
> Assignee: Chao
>
> When we run the query on a 20B we only have a parallelism factor of 1.
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