MAPREDUCE-3264. mapreduce.job.user.name needs to be set automatically. (acmurthy via mahadev) - Merging r1189616 from trunk

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.23@1189617 13f79535-47bb-0310-9956-ffa450edef68

hadoop-mapreduce-project/CHANGES.txt

@@ -1728,6 +1728,9 @@ Release 0.23.0 - Unreleased
     MAPREDUCE-3254. Fixed streaming to set the job.jar by using the right
     JobConf ctor. (acmurthy) 
 
+    MAPREDUCE-3264. mapreduce.job.user.name needs to be set automatically.
+    (acmurthy via mahadev)
+
 Release 0.22.0 - Unreleased
 
   INCOMPATIBLE CHANGES

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/resources/mapred-default.xml

@@ -1224,4 +1224,12 @@
     mapreduce.job.end-notification.max.retry.interval</description>
 </property>
 
+<property>
+  <name>mapreduce.job.user.name</name>
+  <value>${user.name}</value>
+  <description>The user name for the job submitter, configurable only in
+  non-secure mode. In secure mode Kerberos authentication is necessary.
+  </description>
+</property>
+
 </configuration>