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From "Brahma Reddy Battula (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-6389) Fix BaileyBorweinPlouffe CLI usage message
Date Sat, 06 Jun 2015 19:56:00 GMT
Brahma Reddy Battula created MAPREDUCE-6389:
-----------------------------------------------

             Summary: Fix BaileyBorweinPlouffe CLI usage message 
                 Key: MAPREDUCE-6389
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6389
             Project: Hadoop Map/Reduce
          Issue Type: Bug
            Reporter: Brahma Reddy Battula
            Assignee: Brahma Reddy Battula


The usage message from code does not match with the command helpline option. 

 *usage from command line* 
{noformat}
hduser@canberra:~/work/software/cloudera/hadoop-2.0.0-cdh4.0.0$ hadoop jar src/hadoop-mapreduce-project/hadoop-mapreduce-examples/target/hadoop-mapreduce-examples-2.0.0-cdh4.0.0.jar

An example program must be given as the first argument.
Valid program names are:
  aggregatewordcount: An Aggregate based map/reduce program that counts the words in the input
files.
  aggregatewordhist: An Aggregate based map/reduce program that computes the histogram of
the words in the input files.
  bbp: A map/reduce program that uses Bailey-Borwein-Plouffe to compute exact digits of Pi.
  dbcount: An example job that count the pageview counts from a database.
  distbbp: A map/reduce program that uses a BBP-type formula to compute exact bits of Pi.
  grep: A map/reduce program that counts the matches of a regex in the input.
{noformat}

 *usage from code* 
{code}
 public int run(String[] args) throws IOException {
    if (args.length != 4) {
      System.err.println("Usage: java " + getClass().getName()
          + " <startDigit> <nDigits> <nMaps> <workingDir>");
      ToolRunner.printGenericCommandUsage(System.err);
      return -1;
    }
{code}



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