Github user vanzin commented on a diff in the pull request: https://github.com/apache/spark/pull/18887#discussion_r133001818 --- Diff: core/src/main/scala/org/apache/spark/deploy/history/ApplicationHistoryProvider.scala --- @@ -76,6 +76,14 @@ private[history] case class LoadedAppUI( private[history] abstract class ApplicationHistoryProvider { /** + * The number of applications available for listing. Separate method in case it's cheaper + * to get a count than to calculate the whole listing. --- End diff -- Actually it doesn't seem like this is used anymore and I can remove it...
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