Github user choochootrain commented on a diff in the pull request:
https://github.com/apache/spark/pull/9779#discussion_r45168854
--- Diff:
core/src/test/scala/org/apache/spark/scheduler/TaskResultGetterSuite.scala ---
@@ -119,5 +123,66 @@ class TaskResultGetterSuite extends SparkFunSuite with
BeforeAndAfter with Local
// Make sure two tasks were run (one failed one, and a second retried
one).
assert(scheduler.nextTaskId.get() === 2)
}
+
+ /**
+ * SPARK-11195
+
+ * Make sure we are using the context classloader when deserializing
failed TaskResults instead
+ * of the Spark classloader.
+
+ * This test compiles a jar containing an exception and tests that when
it is thrown on the
+ * executor, enqueueFailedTask can correctly deserialize the failure and
identify the thrown
+ * exception as the cause.
+
+ * Before this fix, enqueueFailedTask would throw a
ClassNotFoundException when deserializing
+ * the exception, resulting in an UnknownReason for the TaskEndResult.
+ */
+ test("failed task deserialized with the correct classloader") {
--- End diff --
++
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