Github user squito commented on a diff in the pull request:
https://github.com/apache/spark/pull/8760#discussion_r42044542
--- Diff:
core/src/test/scala/org/apache/spark/scheduler/BlacklistTrackerSuite.scala ---
@@ -0,0 +1,162 @@
+package org.apache.spark.scheduler
+
+import org.apache.spark.SparkFunSuite
+import org.scalatest.BeforeAndAfter
+import org.apache.spark.SparkConf
+import org.apache.spark.TaskEndReason
+import org.apache.spark.Success
+import org.apache.spark.ExceptionFailure
+import org.apache.spark.LocalSparkContext
+import org.apache.spark.SparkContext
+
+import org.mockito.Mockito.{when,spy}
+
+class BlacklistTrackerSuite extends SparkFunSuite with BeforeAndAfter with
LocalSparkContext {
+
+ val FAILURE: TaskEndReason = new ExceptionFailure(
+ "Fake",
+ "fake failure",
+ Array.empty[StackTraceElement],
+ "fake stack trace",
+ None,
+ None)
+
+ // Variable name can indicate basic information of taskInfo
+ // The format is "taskInfo_executorId_taskId_hostName"
+ val taskInfo_1_1_hostA = new TaskInfo(1L,1,1,0L,"1","hostA",
TaskLocality.ANY, false)
+ val taskInfo_1_2_hostA = new TaskInfo(2L,1,1,0L,"1","hostA",
TaskLocality.ANY, false)
+ val taskInfo_2_1_hostA = new TaskInfo(1L,1,1,0L,"2","hostA",
TaskLocality.ANY, false)
+ val taskInfo_2_2_hostA = new TaskInfo(2L,1,1,0L,"2","hostA",
TaskLocality.ANY, false)
+ val taskInfo_3_3_hostB = new TaskInfo(3L,1,1,0L,"3","hostB",
TaskLocality.ANY, false)
+
+ test ("expireExecutorsInBlacklist works ") {
+ val conf = new SparkConf().setAppName("test").setMaster("local")
+ .set("spark.ui.enabled","false")
+ .set("spark.scheduler.blacklist.recoverPeriod", "2")
+ sc = new SparkContext(conf)
+ val scheduler = new TaskSchedulerImpl(sc, 1)
+
+ val tracker = new BlacklistTracker(conf)
+ tracker.start()
+ Thread.sleep(100)
+ tracker.updateFailureExecutors(taskInfo_1_1_hostA, FAILURE)
+ assert(tracker.executorBlacklist(scheduler, 1L) === Set("1"))
+
+ // sleep 2 second to wait for expireExecutorsInBlackList be triggered
+ Thread.sleep(2000)
+ assert(tracker.executorBlacklist(scheduler, 1L) === Set())
+
+ tracker.stop()
+ }
+
+ test("default strategy works as exceptation") {
--- End diff --
typo: expectation (I think that is what you mean)
but actually, might as well just rename to simply "default strategy works"
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