[
https://issues.apache.org/jira/browse/SPARK-14960?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15260476#comment-15260476
]
Apache Spark commented on SPARK-14960:
--------------------------------------
User 'JoshRosen' has created a pull request for this issue:
https://github.com/apache/spark/pull/12737
> Don't perform treeAggregation in local mode
> -------------------------------------------
>
> Key: SPARK-14960
> URL: https://issues.apache.org/jira/browse/SPARK-14960
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Reporter: Josh Rosen
>
> I don't think that {{treeAggregation}} will help performance in {{local}}
> mode and based on measurement of some unit tests it looks like it actually
> severely harms performance in certain cases. Therefore, treeAggregate should
> fall back to plain aggregate when running in local mode.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
