org.apache.hadoop.mapreduce.tools

Class CLI

java.lang.Object

org.apache.hadoop.conf.Configured

org.apache.hadoop.mapreduce.tools.CLI

All Implemented Interfaces:

org.apache.hadoop.conf.Configurable, org.apache.hadoop.util.Tool

Direct Known Subclasses:

JobClient

@InterfaceAudience.Public
 @InterfaceStability.Stable
public class CLI
extends org.apache.hadoop.conf.Configured
implements org.apache.hadoop.util.Tool

Interprets the map reduce cli options

Field Summary

Fields

Modifier and Type	Field and Description
protected Cluster	cluster
static String	dataPattern
static String	headerPattern

Constructor Summary

Constructors

Constructor and Description
CLI()
CLI(org.apache.hadoop.conf.Configuration conf)

Method Summary

Modifier and Type	Method and Description
void	displayJobList(JobStatus[] jobs)
void	displayJobList(JobStatus[] jobs, PrintWriter writer)
protected void	displayTasks(Job job, String type, String state) Display the information about a job's tasks, of a particular type and in a particular state
protected long	getCounter(Counters counters, String counterGroupName, String counterName)
protected static String	getTaskLogURL(TaskAttemptID taskId, String baseUrl)
static void	main(String[] argv)
int	run(String[] argv)

Methods inherited from class org.apache.hadoop.conf.Configured

getConf, setConf

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.hadoop.conf.Configurable

getConf, setConf

Field Detail

cluster

protected Cluster cluster

headerPattern

@InterfaceAudience.Private
public static String headerPattern

dataPattern

@InterfaceAudience.Private
public static String dataPattern

Constructor Detail

CLI

public CLI()

CLI

public CLI(org.apache.hadoop.conf.Configuration conf)

Method Detail

run

public int run(String[] argv)
        throws Exception

Specified by:

run in interface org.apache.hadoop.util.Tool

Throws:

Exception

getCounter

protected long getCounter(Counters counters,
                          String counterGroupName,
                          String counterName)
                   throws IOException

Throws:

IOException

getTaskLogURL

protected static String getTaskLogURL(TaskAttemptID taskId,
                                      String baseUrl)

displayTasks

protected void displayTasks(Job job,
                            String type,
                            String state)
                     throws IOException,
                            InterruptedException

Display the information about a job's tasks, of a particular type and in a particular state

Parameters:

job - the job

type - the type of the task (map/reduce/setup/cleanup)

state - the state of the task (pending/running/completed/failed/killed)

Throws:

IOException

InterruptedException

displayJobList

public void displayJobList(JobStatus[] jobs)
                    throws IOException,
                           InterruptedException

Throws:

IOException

InterruptedException

displayJobList

@InterfaceAudience.Private
public void displayJobList(JobStatus[] jobs,
                                                      PrintWriter writer)

main

public static void main(String[] argv)
                 throws Exception

Throws:

Exception