YARN-4302. SLS not able start due to NPE in SchedulerApplicationAttempt. 
Contributed by Bibin A Chundatt.

(cherry picked from commit c28e16b40caf1e22f72cf2214ebc2fe2eaca4d03)


Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo
Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/c5bf1cb7
Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/c5bf1cb7
Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/c5bf1cb7

Branch: refs/heads/branch-2
Commit: c5bf1cb7af33d93cff783b00d945eb3be66c3c5e
Parents: 3138b43
Author: Varun Vasudev <vvasu...@apache.org>
Authored: Tue Oct 27 20:56:00 2015 +0530
Committer: Varun Vasudev <vvasu...@apache.org>
Committed: Tue Oct 27 20:56:45 2015 +0530

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 .../hadoop/yarn/sls/scheduler/ResourceSchedulerWrapper.java       | 2 +-
 hadoop-yarn-project/CHANGES.txt                                   | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)
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http://git-wip-us.apache.org/repos/asf/hadoop/blob/c5bf1cb7/hadoop-tools/hadoop-sls/src/main/java/org/apache/hadoop/yarn/sls/scheduler/ResourceSchedulerWrapper.java
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diff --git 
a/hadoop-tools/hadoop-sls/src/main/java/org/apache/hadoop/yarn/sls/scheduler/ResourceSchedulerWrapper.java
 
b/hadoop-tools/hadoop-sls/src/main/java/org/apache/hadoop/yarn/sls/scheduler/ResourceSchedulerWrapper.java
index d94a31d..e9d829e 100644
--- 
a/hadoop-tools/hadoop-sls/src/main/java/org/apache/hadoop/yarn/sls/scheduler/ResourceSchedulerWrapper.java
+++ 
b/hadoop-tools/hadoop-sls/src/main/java/org/apache/hadoop/yarn/sls/scheduler/ResourceSchedulerWrapper.java
@@ -933,7 +933,7 @@ public class ResourceSchedulerWrapper
   @LimitedPrivate("yarn")
   @Unstable
   public Resource getClusterResource() {
-    return null;
+    return super.getClusterResource();
   }
 
   @Override

http://git-wip-us.apache.org/repos/asf/hadoop/blob/c5bf1cb7/hadoop-yarn-project/CHANGES.txt
----------------------------------------------------------------------
diff --git a/hadoop-yarn-project/CHANGES.txt b/hadoop-yarn-project/CHANGES.txt
index 2d2770a..fe804a2 100644
--- a/hadoop-yarn-project/CHANGES.txt
+++ b/hadoop-yarn-project/CHANGES.txt
@@ -973,6 +973,9 @@ Release 2.8.0 - UNRELEASED
     YARN-3573. MiniMRYarnCluster constructor that starts the timeline server
     using a boolean should be marked deprecated. (Brahma Reddy Battula via 
ozawa)
 
+    YARN-4302. SLS not able start due to NPE in SchedulerApplicationAttempt
+    (Bibin A Chundatt via vvasudev)
+
 Release 2.7.2 - UNRELEASED
 
   INCOMPATIBLE CHANGES

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