tgravescs commented on a change in pull request #27207:
[WIP][SPARK-18886][CORE] Make Locality wait time measure resource under
utilization due to delay scheduling.
URL: https://github.com/apache/spark/pull/27207#discussion_r374787017
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File path:
core/src/test/scala/org/apache/spark/scheduler/TaskSchedulerImplSuite.scala
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@@ -898,18 +1083,17 @@ class TaskSchedulerImplSuite extends SparkFunSuite with
LocalSparkContext with B
}
// Here is the main check of this test -- we have the same offers again,
and we schedule it
- // successfully. Because the scheduler first tries to schedule with
locality in mind, at first
- // it won't schedule anything on executor1. But despite that, we don't
abort the job. Then the
- // scheduler tries for ANY locality, and successfully schedules tasks on
executor1.
+ // successfully. Because the scheduler tries to schedule with locality in
mind, at first
+ // it won't schedule anything on executor1. But despite that, we don't
abort the job.
val secondTaskAttempts = taskScheduler.resourceOffers(offers).flatten
- assert(secondTaskAttempts.size == 2)
- secondTaskAttempts.foreach { taskAttempt => assert("executor1" ===
taskAttempt.executorId) }
Review comment:
the change in behavior here is because it hasn't met the locality delay yet
to go to executor1 now - and before it used to? please explain.
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