attilapiros commented on a change in pull request #24245:
[SPARK-13704][CORE][YARN] Reduce rack resolution time
URL: https://github.com/apache/spark/pull/24245#discussion_r270904325
##########
File path:
core/src/test/scala/org/apache/spark/scheduler/TaskSetManagerSuite.scala
##########
@@ -1602,4 +1612,40 @@ class TaskSetManagerSuite extends SparkFunSuite with
LocalSparkContext with Logg
verify(sched.dagScheduler).taskEnded(manager.tasks(3), Success,
result.value(),
result.accumUpdates, info3)
}
+
+ test("SPARK-13704 Rack Resolution is done with a batch of de-duped hosts") {
+ val conf = new SparkConf()
+ .set(config.LOCALITY_WAIT.key, "0")
Review comment:
Nit: `.key` is not needed that way setting the config will be type safe
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