org.apache.hadoop.mapreduce.v2.hs.webapp
Class HsController

java.lang.Object
  org.apache.hadoop.yarn.webapp.Controller
      org.apache.hadoop.mapreduce.v2.app.webapp.AppController
          org.apache.hadoop.mapreduce.v2.hs.webapp.HsController

All Implemented Interfaces:

org.apache.hadoop.mapreduce.v2.app.webapp.AMParams, org.apache.hadoop.yarn.webapp.Params

public class HsController
extends org.apache.hadoop.mapreduce.v2.app.webapp.AppController

This class renders the various pages that the History Server WebApp supports

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.yarn.webapp.Controller

org.apache.hadoop.yarn.webapp.Controller.RequestContext

Field Summary

Fields inherited from class org.apache.hadoop.mapreduce.v2.app.webapp.AppController

app

Fields inherited from class org.apache.hadoop.yarn.webapp.Controller

LOG

Fields inherited from interface org.apache.hadoop.mapreduce.v2.app.webapp.AMParams

APP_ID, ATTEMPT_STATE, COUNTER_GROUP, COUNTER_NAME, JOB_ID, RM_WEB, TASK_ID, TASK_TYPE

Fields inherited from interface org.apache.hadoop.yarn.webapp.Params

ERROR_DETAILS, TITLE, TITLE_LINK, USER

Method Summary

void	about() Render a page about the current server.
protected Class<? extends org.apache.hadoop.yarn.webapp.View>	aboutPage()
void	attempts()
protected Class<? extends org.apache.hadoop.yarn.webapp.View>	attemptsPage()
protected Class<? extends org.apache.hadoop.yarn.webapp.View>	confPage()
Class<? extends org.apache.hadoop.yarn.webapp.View>	countersPage()
void	index()
void	job()
void	jobCounters()
protected Class<? extends org.apache.hadoop.yarn.webapp.View>	jobPage()
void	logs() Render the logs page.
void	nmlogs() Render the nm logs page.
protected Class<? extends org.apache.hadoop.yarn.webapp.View>	singleCounterPage()
void	singleJobCounter()
void	singleTaskCounter()
void	task()
void	taskCounters()
protected Class<? extends org.apache.hadoop.yarn.webapp.View>	taskPage()
void	tasks()
protected Class<? extends org.apache.hadoop.yarn.webapp.View>	tasksPage()

Methods inherited from class org.apache.hadoop.mapreduce.v2.app.webapp.AppController

conf, info, requireJob, requireTask

Methods inherited from class org.apache.hadoop.yarn.webapp.Controller

$, context, cookies, echo, error, get, getInstance, inDevMode, info, injector, render, renderJSON, renderJSON, renderText, request, response, set, setStatus, setTitle, setTitle, status, url, writer

Methods inherited from class java.lang.Object

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

Method Detail

index

public void index()

Overrides:

index in class org.apache.hadoop.mapreduce.v2.app.webapp.AppController

jobPage

protected Class<? extends org.apache.hadoop.yarn.webapp.View> jobPage()

Overrides:

jobPage in class org.apache.hadoop.mapreduce.v2.app.webapp.AppController

countersPage

public Class<? extends org.apache.hadoop.yarn.webapp.View> countersPage()

Overrides:

countersPage in class org.apache.hadoop.mapreduce.v2.app.webapp.AppController

tasksPage

protected Class<? extends org.apache.hadoop.yarn.webapp.View> tasksPage()

Overrides:

tasksPage in class org.apache.hadoop.mapreduce.v2.app.webapp.AppController

taskPage

protected Class<? extends org.apache.hadoop.yarn.webapp.View> taskPage()

Overrides:

taskPage in class org.apache.hadoop.mapreduce.v2.app.webapp.AppController

attemptsPage

protected Class<? extends org.apache.hadoop.yarn.webapp.View> attemptsPage()

Overrides:

attemptsPage in class org.apache.hadoop.mapreduce.v2.app.webapp.AppController

job

public void job()

Overrides:

job in class org.apache.hadoop.mapreduce.v2.app.webapp.AppController

jobCounters

public void jobCounters()

Overrides:

jobCounters in class org.apache.hadoop.mapreduce.v2.app.webapp.AppController

taskCounters

public void taskCounters()

Overrides:

taskCounters in class org.apache.hadoop.mapreduce.v2.app.webapp.AppController

tasks

public void tasks()

Overrides:

tasks in class org.apache.hadoop.mapreduce.v2.app.webapp.AppController

task

public void task()

Overrides:

task in class org.apache.hadoop.mapreduce.v2.app.webapp.AppController

attempts

public void attempts()

Overrides:

attempts in class org.apache.hadoop.mapreduce.v2.app.webapp.AppController

confPage

protected Class<? extends org.apache.hadoop.yarn.webapp.View> confPage()

Overrides:

confPage in class org.apache.hadoop.mapreduce.v2.app.webapp.AppController

Returns:

the page that will be used to render the /conf page

aboutPage

protected Class<? extends org.apache.hadoop.yarn.webapp.View> aboutPage()

Returns:

the page about the current server.

about

public void about()

Render a page about the current server.

logs

public void logs()

Render the logs page.

nmlogs

public void nmlogs()

Render the nm logs page.

singleCounterPage

protected Class<? extends org.apache.hadoop.yarn.webapp.View> singleCounterPage()

Overrides:

singleCounterPage in class org.apache.hadoop.mapreduce.v2.app.webapp.AppController

singleJobCounter

public void singleJobCounter()
                      throws IOException

Overrides:

singleJobCounter in class org.apache.hadoop.mapreduce.v2.app.webapp.AppController

Throws:

IOException

singleTaskCounter

public void singleTaskCounter()
                       throws IOException

Overrides:

singleTaskCounter in class org.apache.hadoop.mapreduce.v2.app.webapp.AppController

Throws:

IOException