Github user mengxr commented on a diff in the pull request:
https://github.com/apache/spark/pull/3397#discussion_r20708235
--- Diff:
mllib/src/main/scala/org/apache/spark/mllib/api/python/PythonMLLibAPI.scala ---
@@ -74,13 +74,27 @@ class PythonMLLibAPI extends Serializable {
learner: GeneralizedLinearAlgorithm[_ <: GeneralizedLinearModel],
data: JavaRDD[LabeledPoint],
initialWeights: Vector): JList[Object] = {
- // Disable the uncached input warning because 'data' is a deliberately
uncached MappedRDD.
- learner.disableUncachedWarning()
- val model = learner.run(data.rdd, initialWeights)
+ val model =
learner.run(data.rdd.persist(StorageLevel.MEMORY_AND_DISK), initialWeights)
--- End diff --
Shall we call `unpersist` explicitly after training?
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