From 7405c59799ed1b8ad1a7c6f1b18fabf49d0b92b2 Mon Sep 17 00:00:00 2001
From: Devaraj K <devaraj@apache.org>
Date: Wed, 1 Jul 2015 11:11:26 +0530
Subject: [PATCH] YARN-3823. Fix mismatch in default values for
 yarn.scheduler.maximum-allocation-vcores property. Contributed by Ray Chiang.

---
 hadoop-yarn-project/CHANGES.txt                                | 3 +++
 .../hadoop-yarn-common/src/main/resources/yarn-default.xml     | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/hadoop-yarn-project/CHANGES.txt b/hadoop-yarn-project/CHANGES.txt
index 5e9243d0ff..8c07e48002 100644
--- a/hadoop-yarn-project/CHANGES.txt
+++ b/hadoop-yarn-project/CHANGES.txt
@@ -580,6 +580,9 @@ Release 2.8.0 - UNRELEASED
     YARN-3768. ArrayIndexOutOfBoundsException with empty environment variables.
     (Zhihai Xu via gera)
 
+    YARN-3823. Fix mismatch in default values for 
+    yarn.scheduler.maximum-allocation-vcores property. (Ray Chiang via devaraj)
+
 Release 2.7.2 - UNRELEASED
 
   INCOMPATIBLE CHANGES
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml
index 621198cce4..4987084d29 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml
@@ -276,7 +276,7 @@
     in terms of virtual CPU cores. Requests higher than this will throw a
     InvalidResourceRequestException.</description>
     <name>yarn.scheduler.maximum-allocation-vcores</name>
-    <value>32</value>
+    <value>4</value>
   </property>
 
   <property>