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[SPARK-31784][CORE][TEST] Fix test BarrierTaskContextSuite."share messages with allGather() call" #28596

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[SPARK-31784][CORE][TEST] Fix test BarrierTaskContextSuite."share messages with allGather() call" #28596

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2be2ca7
fix
Ngone51 May 21, 2020
021c0a5
address comment
Ngone51 May 22, 2020
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10 changes: 5 additions & 5 deletions core/src/test/scala/org/apache/spark/scheduler/BarrierTaskContextSuite.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -69,12 +69,12 @@ class BarrierTaskContextSuite extends SparkFunSuite with LocalSparkContext with
// Pass partitionId message in
val message: String = context.partitionId().toString
val messages: Array[String] = context.allGather(message)
messages.toList.iterator
Iterator.single(messages.toList)
}
// Take a sorted list of all the partitionId messages
val messages = rdd2.collect().head
// All the task partitionIds are shared
for((x, i) <- messages.view.zipWithIndex) assert(x.toString == i.toString)
val messages = rdd2.collect()
// All the task partitionIds are shared across all tasks
assert(messages.length === 4)
assert(messages.forall(_ == List("0", "1", "2", "3")))
}

test("throw exception if we attempt to synchronize with different blocking calls") {
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