Github user lgieron commented on a diff in the pull request:
https://github.com/apache/spark/pull/13264#discussion_r64545642
--- Diff: core/src/main/scala/org/apache/spark/ui/storage/StorageTab.scala
---
@@ -59,7 +59,15 @@ class StorageListener(storageStatusListener:
StorageStatusListener) extends Bloc
override def onStageSubmitted(stageSubmitted:
SparkListenerStageSubmitted): Unit = synchronized {
val rddInfos = stageSubmitted.stageInfo.rddInfos
- rddInfos.foreach { info => _rddInfoMap.getOrElseUpdate(info.id, info) }
+ rddInfos.foreach { info =>
--- End diff --
OK I'm changing this. I'm not a fan of slower code in favor of brevity (as
my impression is that, over time, the entire code base just becomes slow and
fixing a couple bottlenecks won't necessarily help things), but it's the in the
general spirit of Scala (brevity over speed) so my one optimization would be
meaningless anyway.
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