yaooqinn commented on code in PR #36222:
URL: https://github.com/apache/spark/pull/36222#discussion_r851843861
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core/src/main/scala/org/apache/spark/scheduler/DAGScheduler.scala:
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@@ -2736,7 +2736,7 @@ private[spark] class DAGScheduler(
// If the RDD has some placement preferences (as is the case for input
RDDs), get those
val rddPrefs = rdd.preferredLocations(rdd.partitions(partition)).toList
if (rddPrefs.nonEmpty) {
- return rddPrefs.map(TaskLocation(_))
+ return rddPrefs.map(TaskLocation(_)).filter(_ != null)
Review Comment:
sgtm
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