MAPREDUCE-6336. Enable v2 FileOutputCommitter by default. (Siqi Li via gera)

hadoop-mapreduce-project/CHANGES.txt

@@ -13,6 +13,9 @@ Trunk (Unreleased)
     MAPREDUCE-4424. 'mapred job -list' command should show the job name
     as well. (Avinash Kujur via aajisaka)
 
+    MAPREDUCE-6336. Enable v2 FileOutputCommitter by default.
+    (Siqi Li via gera)
+
   NEW FEATURES
 
     MAPREDUCE-778. Rumen Anonymizer. (Amar Kamat and Chris Douglas via amarrk)

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

@@ -1323,7 +1323,7 @@
 
 <property>
   <name>mapreduce.fileoutputcommitter.algorithm.version</name>
-  <value>1</value>
+  <value>2</value>
   <description>The file output committer algorithm version
   valid algorithm version number: 1 or 2
   default to 1, which is the original algorithm