Github user hunglin commented on a diff in the pull request:
https://github.com/apache/spark/pull/5124#discussion_r27448459
--- Diff: core/src/test/scala/org/apache/spark/SparkContextSuite.scala ---
@@ -173,4 +176,21 @@ class SparkContextSuite extends FunSuite with
LocalSparkContext {
sc.stop()
}
}
+
+ test("Cancelling job group should not cause SparkContext to shutdown
(SPARK-6414)") {
+ try {
+ sc = new SparkContext(new
SparkConf().setAppName("test").setMaster("local"))
+ val future = sc.parallelize(Seq(0)).foreachAsync(_ =>
{Thread.sleep(1000L)})
+ sc.cancelJobGroup("nonExistGroupId")
+ Await.ready(future, Duration(2, TimeUnit.SECONDS))
+
+ /**
+ * In SPARK-6414, sc.cancelJobGroup will cause NullPointerException
and cause
--- End diff --
thanks for reminding, updated the comment style.
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