From 0b7b8a377611b2a3041a2995504a437c36dfa6e6 Mon Sep 17 00:00:00 2001
From: Akira Ajisaka <aajisaka@apache.org>
Date: Fri, 10 Jun 2016 19:15:36 +0900
Subject: [PATCH] MAPREDUCE-6741. Refactor
 UncompressedSplitLineReader.fillBuffer(). Contributed by Daniel Templeton.

---
 .../mapreduce/lib/input/UncompressedSplitLineReader.java  | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/lib/input/UncompressedSplitLineReader.java b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/lib/input/UncompressedSplitLineReader.java
index bda02186e8..c2b005bb58 100644
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/lib/input/UncompressedSplitLineReader.java
+++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/lib/input/UncompressedSplitLineReader.java
@@ -53,10 +53,10 @@ protected int fillBuffer(InputStream in, byte[] buffer, boolean inDelimiter)
       throws IOException {
     int maxBytesToRead = buffer.length;
     if (totalBytesRead < splitLength) {
-      long leftBytesForSplit = splitLength - totalBytesRead;
-      // check if leftBytesForSplit exceed Integer.MAX_VALUE
-      if (leftBytesForSplit <= Integer.MAX_VALUE) {
-        maxBytesToRead = Math.min(maxBytesToRead, (int)leftBytesForSplit);
+      long bytesLeftInSplit = splitLength - totalBytesRead;
+
+      if (bytesLeftInSplit < maxBytesToRead) {
+        maxBytesToRead = (int)bytesLeftInSplit;
       }
     }
     int bytesRead = in.read(buffer, 0, maxBytesToRead);