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https://issues.apache.org/jira/browse/SPARK-17050?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15420336#comment-15420336
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Sean Owen commented on SPARK-17050:
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[~WeichenXu123] this sounds quite related to
https://issues.apache.org/jira/browse/SPARK-17033 . I don't think we should
open JIRAs for the exact same logical change in different classes. Let's put
these together into SPARK-17033.
> Improve initKMeansParallel with treeAggregate
> ---------------------------------------------
>
> Key: SPARK-17050
> URL: https://issues.apache.org/jira/browse/SPARK-17050
> Project: Spark
> Issue Type: Improvement
> Reporter: Weichen Xu
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> The `initKMeansParallel` use `rdd.aggregate`, it is better to use
> `treeAggregate` to get better performance.
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