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[SPARK-11480][CORE][WEBUI] Wrong callsite is displayed when using AsyncRDDActions#takeAsync #9437

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[SPARK-11480][CORE][WEBUI] Wrong callsite is displayed when using AsyncRDDActions#takeAsync #9437

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2 changes: 2 additions & 0 deletions core/src/main/scala/org/apache/spark/rdd/AsyncRDDActions.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -66,13 +66,15 @@ class AsyncRDDActions[T: ClassTag](self: RDD[T]) extends Serializable with Loggi
*/
def takeAsync(num: Int): FutureAction[Seq[T]] = self.withScope {
val f = new ComplexFutureAction[Seq[T]]
val callSite = self.context.getCallSite

f.run {
// This is a blocking action so we should use "AsyncRDDActions.futureExecutionContext" which
// is a cached thread pool.
val results = new ArrayBuffer[T](num)
val totalParts = self.partitions.length
var partsScanned = 0
self.context.setCallSite(callSite)
while (results.size < num && partsScanned < totalParts) {
// The number of partitions to try in this iteration. It is ok for this number to be
// greater than totalParts because we actually cap it at totalParts in runJob.
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