srowen commented on a change in pull request #32539:
URL: https://github.com/apache/spark/pull/32539#discussion_r632653099
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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:
Why not just up the max, if it autoscales?
The problem is, you can expose this config, but, it only helps if users find
it and set it. That's unlikely for most users. If we can simply make it work
with a default change, that's much better.
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