1 files changed, 1 insertions, 4 deletions
diff --git a/core/src/main/scala/org/apache/spark/deploy/history/HistoryPage.scala b/core/src/main/scala/org/apache/spark/deploy/history/HistoryPage.scala
index b4f5a6114f..95b72224e0 100644
--- a/core/src/main/scala/org/apache/spark/deploy/history/HistoryPage.scala
+++ b/core/src/main/scala/org/apache/spark/deploy/history/HistoryPage.scala
@@ -29,10 +29,7 @@ private[history] class HistoryPage(parent: HistoryServer) extends WebUIPage("")
     val requestedIncomplete =
       Option(request.getParameter("showIncomplete")).getOrElse("false").toBoolean
 
-    val allApps = parent.getApplicationList()
-      .filter(_.completed != requestedIncomplete)
-    val allAppsSize = allApps.size
-
+    val allAppsSize = parent.getApplicationList().count(_.completed != requestedIncomplete)
     val providerConfig = parent.getProviderConfig()
     val content =
       <div>