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https://issues.apache.org/jira/browse/SPARK-3366?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiangrui Meng resolved SPARK-3366.
----------------------------------
       Resolution: Fixed
    Fix Version/s: 1.2.0

Issue resolved by pull request 2595
[https://github.com/apache/spark/pull/2595]

> Compute best splits distributively in decision tree
> ---------------------------------------------------
>
>                 Key: SPARK-3366
>                 URL: https://issues.apache.org/jira/browse/SPARK-3366
>             Project: Spark
>          Issue Type: Improvement
>          Components: MLlib
>            Reporter: Xiangrui Meng
>            Assignee: Qiping Li
>             Fix For: 1.2.0
>
>
> The current implementation computes all best splits locally on the driver, 
> which makes the driver a bottleneck for both communication and computation. 
> It would be nice if we can compute the best splits distributively.



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