Github user srowen commented on a diff in the pull request:
https://github.com/apache/spark/pull/10978#discussion_r52273190
--- Diff:
core/src/main/scala/org/apache/spark/api/java/JavaSparkContext.scala ---
@@ -774,6 +774,16 @@ class JavaSparkContext(val sc: SparkContext)
/** Cancel all jobs that have been scheduled or are running. */
def cancelAllJobs(): Unit = sc.cancelAllJobs()
+
+ /**
+ * Returns an Java map of JavaRDDs that have marked themselves as
persistent via cache() call.
+ * Note that this does not necessarily mean the caching or computation
was successful.
+ */
+ def getPersistentRDDs : JMap[java.lang.Integer, JavaRDD[_]] = {
--- End diff --
Nit: remove space before colon, and remove braces on the next line. I'm
sort of surprised if this works but let's see the tests.
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