venkata91 commented on a change in pull request #33896:
URL: https://github.com/apache/spark/pull/33896#discussion_r746182875
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File path: core/src/main/scala/org/apache/spark/MapOutputTracker.scala
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@@ -922,7 +922,7 @@ private[spark] class MapOutputTrackerMaster(
Runtime.getRuntime.availableProcessors(),
statuses.length.toLong * totalSizes.length / parallelAggThreshold +
1).toInt
if (parallelism <= 1) {
- for (s <- statuses) {
+ statuses.filter(_ != null).foreach { s =>
Review comment:
Based on this
[comment](https://github.com/apache/spark/pull/33896#discussion_r744193682), we
would need this `null` filtering right? If not the
`MapOutputTracker.getStatistics` would throw NPE as we are also getting
statistics in the cases when all the map outputs are not available
(deterministic stage case)
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