Github user wangmiao1981 commented on a diff in the pull request:
https://github.com/apache/spark/pull/12560#discussion_r60701976
--- Diff: mllib/src/main/scala/org/apache/spark/ml/recommendation/ALS.scala
---
@@ -607,7 +611,8 @@ object ALS extends DefaultParamsReadable[ALS] with
Logging {
intermediateRDDStorageLevel: StorageLevel =
StorageLevel.MEMORY_AND_DISK,
finalRDDStorageLevel: StorageLevel = StorageLevel.MEMORY_AND_DISK,
checkpointInterval: Int = 10,
- seed: Long = 0L)(
+ seed: Long = 0L,
+ instr: Option[Instrumentation[ALS]] = None)(
--- End diff --
Modifying training is to get the number of features without collect. I
agree with you that we should not change train. But I can't get number of
features without changing it.
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