Github user imatiach-msft commented on a diff in the pull request:
https://github.com/apache/spark/pull/16355#discussion_r95029976
--- Diff:
mllib/src/test/scala/org/apache/spark/ml/clustering/BisectingKMeansSuite.scala
---
@@ -29,9 +29,12 @@ class BisectingKMeansSuite
final val k = 5
@transient var dataset: Dataset[_] = _
+ @transient var sparseDataset: Dataset[_] = _
+
override def beforeAll(): Unit = {
super.beforeAll()
dataset = KMeansSuite.generateKMeansData(spark, 50, 3, k)
+ sparseDataset = KMeansSuite.generateSparseData(spark, 100, 1000, k, 42)
--- End diff --
I can only repro the issue with very sparse data where number of columns is
around 1k. I was able to reduce the number of rows to be only 10 however. I
hope that is a small enough dataset.
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