zhengruifeng commented on a change in pull request #27014:
[SPARK-29967][ML][FOLLOWUP] KMeans Cleanup
URL: https://github.com/apache/spark/pull/27014#discussion_r361407783
##########
File path: mllib/src/main/scala/org/apache/spark/mllib/clustering/KMeans.scala
##########
@@ -232,7 +232,7 @@ class KMeans private (
val zippedData = data.zip(norms).map { case ((v, w), norm) =>
(new VectorWithNorm(v, norm), w)
}
- zippedData.persist()
+ zippedData.persist(StorageLevel.MEMORY_AND_DISK)
Review comment:
Keep in line with other intermediate RDDs persisted in KMeans
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