Github user JoshRosen commented on a diff in the pull request: https://github.com/apache/spark/pull/3884#discussion_r23343038 --- Diff: core/src/main/scala/org/apache/spark/SparkContext.scala --- @@ -1068,7 +1120,10 @@ class SparkContext(config: SparkConf) extends Logging with ExecutorAllocationCli * Returns an immutable map of RDDs that have marked themselves as persistent via cache() call. * Note that this does not necessarily mean the caching or computation was successful. */ - def getPersistentRDDs: Map[Int, RDD[_]] = persistentRdds.toMap --- End diff -- This is safe, so I'll revert this error-checking.
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