srowen commented on a change in pull request #32539:
URL: https://github.com/apache/spark/pull/32539#discussion_r632641568
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File path: core/src/main/scala/org/apache/spark/internal/config/UI.scala
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@@ -218,4 +218,13 @@ private[spark] object UI {
.stringConf
.transform(_.toUpperCase(Locale.ROOT))
.createWithDefault("LOCAL")
+
+ val UI_THREADS = ConfigBuilder("spark.ui.threads")
Review comment:
I don't quite understand - are you saying 200 isn't enough? then
increase the max.
Is 200 too many and you have too many threads lingering? then can we make
the scale-down any more aggressive?
But in any event what is the problem?
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