YARN-1237. Description for yarn.nodemanager.aux-services in yarn-default.xml is misleading. Contributed by Brahma Reddy Battula.

hadoop-yarn-project/CHANGES.txt

@@ -266,6 +266,9 @@ Release 2.7.0 - UNRELEASED
     YARN-2683. [YARN-913] registry config options: document and move to
     core-default. (stevel)
 
+    YARN-1237. Description for yarn.nodemanager.aux-services in 
+    yarn-default.xml is misleading. (Brahma Reddy Battula via ozawa)
+
   OPTIMIZATIONS
 
     YARN-2990. FairScheduler's delay-scheduling always waits for node-local and 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml

@@ -1072,7 +1072,8 @@
   </property>
 
   <property>
-    <description>the valid service name should only contain a-zA-Z0-9_ and can not start with numbers</description>
+    <description>A comma separated list of services where service name should only
+      contain a-zA-Z0-9_ and can not start with numbers</description>
     <name>yarn.nodemanager.aux-services</name>
     <value></value>
     <!--<value>mapreduce_shuffle</value>-->