GitHub user WeichenXu123 opened a pull request:
https://github.com/apache/spark/pull/19107
[SPARK-21799][ML] Fix `KMeans` performance regression caused by
double-caching
## What changes were proposed in this pull request?
Fix `KMeans` performance regression caused by double-caching input dataset.
## How was this patch tested?
N/A
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/WeichenXu123/spark fix_kmeans_perf_regression
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/19107.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #19107
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commit ea062253086c606d8f21007791f68ef10342de5e
Author: WeichenXu <[email protected]>
Date: 2017-09-02T04:30:01Z
init pr
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