Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/6081#discussion_r30300065
--- Diff: core/src/main/scala/org/apache/spark/SparkContext.scala ---
@@ -689,6 +689,64 @@ class SparkContext(config: SparkConf) extends Logging
with ExecutorAllocationCli
new ParallelCollectionRDD[T](this, seq, numSlices, Map[Int,
Seq[String]]())
}
+ /**
+ * Creates a new RDD[Long] containing elements from `start` to
`end`(exclusive), increased by
+ * `step` every element.
+ *
+ * @note if we need to cache this RDD, we should make sure each
partition contains no more than
+ * 2 billion element.
--- End diff --
let's put the actual number down instead of 2b. it's actually not exactly
2b.
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