From 0908a365970ced444fea0b9107c37484189d209d Mon Sep 17 00:00:00 2001
From: Kousuke Saruta <sarutak@oss.nttdata.co.jp>
Date: Thu, 1 Sep 2016 10:14:59 +0900
Subject: [PATCH] Fixed calculation error in StagePage

---
 core/src/main/scala/org/apache/spark/ui/jobs/StagePage.scala | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/core/src/main/scala/org/apache/spark/ui/jobs/StagePage.scala b/core/src/main/scala/org/apache/spark/ui/jobs/StagePage.scala
index a266164587e4e..de787f257737d 100644
--- a/core/src/main/scala/org/apache/spark/ui/jobs/StagePage.scala
+++ b/core/src/main/scala/org/apache/spark/ui/jobs/StagePage.scala
@@ -651,9 +651,9 @@ private[ui] class StagePage(parent: StagesTab) extends WebUIPage("stage") {
         }
         val executorComputingTime = executorRunTime - shuffleReadTime - shuffleWriteTime
         val executorComputingTimeProportion =
-          (100 - schedulerDelayProportion - shuffleReadTimeProportion -
+          math.max(100 - schedulerDelayProportion - shuffleReadTimeProportion -
             shuffleWriteTimeProportion - serializationTimeProportion -
-            deserializationTimeProportion - gettingResultTimeProportion)
+            deserializationTimeProportion - gettingResultTimeProportion, 0)
 
         val schedulerDelayProportionPos = 0
         val deserializationTimeProportionPos =