amanomer commented on a change in pull request #26454: [SPARK-29818][MLLIB] Missing persist on RDD URL: https://github.com/apache/spark/pull/26454#discussion_r345262341
########## File path: mllib/src/main/scala/org/apache/spark/ml/recommendation/ALS.scala ########## @@ -927,6 +927,7 @@ object ALS extends DefaultParamsReadable[ALS] with Logging { require(intermediateRDDStorageLevel != StorageLevel.NONE, "ALS is not designed to run without persisting intermediate RDDs.") + ratings.persist() Review comment: Here also persist is not required. And `blockRatings` which is a child RDD is already persisted. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org