Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/6034#discussion_r30390441
--- Diff:
streaming/src/main/scala/org/apache/spark/streaming/dstream/DStream.scala ---
@@ -111,6 +112,50 @@ abstract class DStream[T: ClassTag] (
/* Set the creation call site */
private[streaming] val creationSite = DStream.getCreationSite()
+ /**
+ * The base scope associated with the operation that created this
DStream.
+ *
+ * This is the medium through which we pass the DStream operation name
(e.g. updatedStateByKey)
+ * to the RDDs created by this DStream. Note that we never use this
scope directly in RDDs.
+ * Instead, we instantiate a new scope during each call to `compute`
based on this one.
+ *
+ * This is not defined if the DStream is created outside of one of the
public DStream operations.
+ */
+ private[streaming] val baseScope: Option[String] = {
+ Option(ssc.sc.getLocalProperty(SparkContext.RDD_SCOPE_KEY))
+ }
+
+ /**
+ * An optional custom name for all scopes generated by this DStream.
+ * If None, the name of the operation that created this DStream will be
used.
+ */
+ protected val customScopeName: Option[String] = None
--- End diff --
Ok, `protected[streaming]` it is
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