MAPREDUCE-6291. Correct mapred queue usage command. Contributed by Brahma Reddy Battula.

hadoop-mapreduce-project/CHANGES.txt

@@ -256,6 +256,9 @@ Release 2.8.0 - UNRELEASED
 
   IMPROVEMENTS
 
+    MAPREDUCE-6291. Correct mapred queue usage command.
+    (Brahma Reddu Battula via harsh)
+
     MAPREDUCE-579. Streaming "slowmatch" documentation. (harsh)
 
     MAPREDUCE-6287. Deprecated methods in org.apache.hadoop.examples.Sort

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapred/JobQueueClient.java

@@ -224,7 +224,7 @@ class JobQueueClient extends Configured implements Tool {
   }
 
   private void displayUsage(String cmd) {
-    String prefix = "Usage: JobQueueClient ";
+    String prefix = "Usage: queue ";
     if ("-queueinfo".equals(cmd)) {
       System.err.println(prefix + "[" + cmd + "<job-queue-name> [-showJobs]]");
     } else {

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapred/pipes/Submitter.java

@@ -363,7 +363,7 @@ public class Submitter extends Configured implements Tool {
     void printUsage() {
       // The CLI package should do this for us, but I can't figure out how
       // to make it print something reasonable.
-      System.out.println("bin/hadoop pipes");
+      System.out.println("Usage: pipes ");
       System.out.println("  [-input <path>] // Input directory");
       System.out.println("  [-output <path>] // Output directory");
       System.out.println("  [-jar <jar file> // jar filename");

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

@@ -421,7 +421,7 @@ public class CLI extends Configured implements Tool {
    * Display usage of the command-line tool and terminate execution.
    */
   private void displayUsage(String cmd) {
-    String prefix = "Usage: CLI ";
+    String prefix = "Usage: job ";
     String jobPriorityValues = getJobPriorityNames();
     String taskStates = "running, completed";
     

hadoop-tools/hadoop-archives/src/main/java/org/apache/hadoop/tools/HadoopArchives.java

@@ -101,7 +101,7 @@ public class HadoopArchives implements Tool {
   /** the desired replication degree; default is 10 **/
   short repl = 10;
 
-  private static final String usage = "archive"
+  private static final String usage = "Usage: archive"
   + " -archiveName <NAME>.har -p <parent path> [-r <replication factor>]" +
       "<src>* <dest>" +
   "\n";