From 39434f9afcb9639dec6fd17d9348b4551bdb16b1 Mon Sep 17 00:00:00 2001
From: Josh Rosen <joshrosen@databricks.com>
Date: Mon, 11 May 2015 14:58:25 -0700
Subject: [PATCH] Avoid integer multiplication overflow in getMemoryUsage
 (thanks FindBugs!)

---
 .../spark/shuffle/unsafe/UnsafeShuffleExternalSorter.java       | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/src/main/java/org/apache/spark/shuffle/unsafe/UnsafeShuffleExternalSorter.java b/core/src/main/java/org/apache/spark/shuffle/unsafe/UnsafeShuffleExternalSorter.java
index 772ed688359dc..44a37fcd43951 100644
--- a/core/src/main/java/org/apache/spark/shuffle/unsafe/UnsafeShuffleExternalSorter.java
+++ b/core/src/main/java/org/apache/spark/shuffle/unsafe/UnsafeShuffleExternalSorter.java
@@ -246,7 +246,7 @@ void spill() throws IOException {
   }
 
   private long getMemoryUsage() {
-    return sorter.getMemoryUsage() + (allocatedPages.size() * PAGE_SIZE);
+    return sorter.getMemoryUsage() + (allocatedPages.size() * (long) PAGE_SIZE);
   }
 
   private long freeMemory() {