mridulm commented on code in PR #42323:
URL: https://github.com/apache/spark/pull/42323#discussion_r1284972469
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core/src/main/scala/org/apache/spark/MapOutputTracker.scala:
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@@ -171,7 +171,10 @@ private class ShuffleStatus(
* Get the map output that corresponding to a given mapId.
*/
def getMapStatus(mapId: Long): Option[MapStatus] = withReadLock {
- mapIdToMapIndex.get(mapId).map(mapStatuses(_))
+ mapIdToMapIndex.get(mapId).map(mapStatuses(_)) match {
Review Comment:
`filter` here would have been better.
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