Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/21758#discussion_r203621244
--- Diff: core/src/test/scala/org/apache/spark/SparkContextSuite.scala ---
@@ -627,6 +627,48 @@ class SparkContextSuite extends SparkFunSuite with
LocalSparkContext with Eventu
assert(exc.getCause() != null)
stream.close()
}
+
+ test("support barrier sync under local mode") {
--- End diff --
we don't have `barrier sync` yet, do we need to test it now?
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