Github user WeichenXu123 commented on a diff in the pull request:
https://github.com/apache/spark/pull/21218#discussion_r185756220
--- Diff: mllib/src/main/scala/org/apache/spark/ml/clustering/KMeans.scala
---
@@ -378,6 +378,7 @@ class KMeans @Since("1.5.0") (
model.transform(dataset), $(predictionCol), $(featuresCol), $(k))
model.setSummary(Some(summary))
+ instr.logNamedValue("clusterSizes", summary.clusterSizes.toString)
--- End diff --
ditto.
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