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https://issues.apache.org/jira/browse/SPARK-8153?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14576649#comment-14576649
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Apache Spark commented on SPARK-8153:
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User 'navis' has created a pull request for this issue:
https://github.com/apache/spark/pull/6696
> Add configuration for disabling partial aggregation in runtime
> --------------------------------------------------------------
>
> Key: SPARK-8153
> URL: https://issues.apache.org/jira/browse/SPARK-8153
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Navis
> Priority: Trivial
>
> Same thing with "hive.map.aggr.hash.min.reduction" in hive, which disables
> hash aggregation if it's not sufficiently decreasing the output size.
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