From 4e3f4b934f74e8c7c06f4940d6381343f9fd4918 Mon Sep 17 00:00:00 2001
From: zsxwing <zsxwing@gmail.com>
Date: Tue, 11 Aug 2015 23:23:17 -0700
Subject: [PATCH] [SPARK-9829] [WEBUI] Display the update value for peak
execution memory
The peak execution memory is not correct because it shows the sum of finished tasks' values when a task finishes.
This PR fixes it by using the update value rather than the accumulator value.
Author: zsxwing <zsxwing@gmail.com>
Closes #8121 from zsxwing/SPARK-9829.
---
core/src/main/scala/org/apache/spark/ui/jobs/StagePage.scala | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
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 0c94204df6..fb4556b836 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
@@ -860,7 +860,7 @@ private[ui] class TaskDataSource(
}
val peakExecutionMemoryUsed = taskInternalAccumulables
.find { acc => acc.name == InternalAccumulator.PEAK_EXECUTION_MEMORY }
- .map { acc => acc.value.toLong }
+ .map { acc => acc.update.getOrElse("0").toLong }
.getOrElse(0L)
val maybeInput = metrics.flatMap(_.inputMetrics)
--
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