MAPREDUCE-7343. Increase the job name max length in mapred job -list. (#2995). Contributed by Ayush Saxena.

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/tools/CLI.java

@@ -771,10 +771,10 @@ public class CLI extends Configured implements Tool {
   }
 
   @Private
-  public static String headerPattern = "%23s\t%20s\t%10s\t%14s\t%12s\t%12s" +
+  public static String headerPattern = "%23s\t%40s\t%10s\t%14s\t%12s\t%12s" +
       "\t%10s\t%15s\t%15s\t%8s\t%8s\t%10s\t%10s\n";
   @Private
-  public static String dataPattern   = "%23s\t%20s\t%10s\t%14d\t%12s\t%12s" +
+  public static String dataPattern   = "%23s\t%40s\t%10s\t%14d\t%12s\t%12s" +
       "\t%10s\t%15s\t%15s\t%8s\t%8s\t%10s\t%10s\n";
   private static String memPattern   = "%dM";
   private static String UNAVAILABLE  = "N/A";
@@ -792,8 +792,8 @@ public class CLI extends Configured implements Tool {
       long rsvdMem = job.getReservedMem();
       long neededMem = job.getNeededMem();
       int jobNameLength = job.getJobName().length();
-      writer.printf(dataPattern, job.getJobID().toString(),
-          job.getJobName().substring(0, jobNameLength > 20 ? 20 : jobNameLength),
+      writer.printf(dataPattern, job.getJobID().toString(), job.getJobName()
+              .substring(0, jobNameLength > 40 ? 40 : jobNameLength),
           job.getState(), job.getStartTime(), job.getUsername(),
           job.getQueue(), job.getPriority().name(),
           numUsedSlots < 0 ? UNAVAILABLE : numUsedSlots,