Github user srowen commented on a diff in the pull request:
https://github.com/apache/spark/pull/17014#discussion_r102205041
--- Diff: mllib/src/main/scala/org/apache/spark/ml/Predictor.scala ---
@@ -126,9 +129,10 @@ abstract class Predictor[
* and copying parameters into the model.
*
* @param dataset Training dataset
+ * @param handlePersistence Whether to persist the dataset in
implementation
* @return Fitted model
*/
- protected def train(dataset: Dataset[_]): M
+ protected def train(dataset: Dataset[_], handlePersistence: Boolean): M
--- End diff --
Isn't this going to break external implementers?
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