MAPREDUCE-6071. JobImpl#makeUberDecision doesn't log that Uber mode is disabled because of too much CPUs. Contributed by Tsuyoshi OZAWA

(cherry picked from commit 45efc966ee1a1bda0271464dcee2564862d53b1f)

hadoop-mapreduce-project/CHANGES.txt

@@ -121,6 +121,9 @@ Release 2.6.0 - UNRELEASED
     MAPREDUCE-6063. Correct spill size calculation for spills wrapping the
     circular buffer. (zhihai xu via cdouglas)
 
+    MAPREDUCE-6071. JobImpl#makeUberDecision doesn't log that Uber mode is
+    disabled because of too much CPUs (Tsuyoshi OZAWA via jlowe)
+
 Release 2.5.1 - UNRELEASED
 
   INCOMPATIBLE CHANGES

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/job/impl/JobImpl.java

@@ -1285,6 +1285,8 @@ public class JobImpl implements org.apache.hadoop.mapreduce.v2.app.job.Job,
         msg.append(" too many reduces;");
       if (!smallInput)
         msg.append(" too much input;");
+      if (!smallCpu)
+        msg.append(" too much CPU;");
       if (!smallMemory)
         msg.append(" too much RAM;");
       if (!notChainJob)