tgravescs commented on a change in pull request #28257:
URL: https://github.com/apache/spark/pull/28257#discussion_r411588037
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File path:
core/src/test/scala/org/apache/spark/scheduler/BarrierTaskContextSuite.scala
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@@ -276,4 +276,20 @@ class BarrierTaskContextSuite extends SparkFunSuite with
LocalSparkContext {
initLocalClusterSparkContext()
testBarrierTaskKilled(interruptOnKill = true)
}
+
+ test("SPARK-31485: barrier stage should fail if only partial tasks are
launched") {
+ initLocalClusterSparkContext(2)
+ val rdd0 = sc.parallelize(Seq(0, 1, 2, 3), 2)
+ val dep = new OneToOneDependency[Int](rdd0)
+ // set up a barrier stage with 2 tasks and both tasks prefer executor 0
(only 1 core) for
Review comment:
we can certainly do it separate from this since that appears to be
existing behavior. I was surprised by it because I was thinking of other cases
like blacklisting, which makes more sense to me
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