org.apache.hadoop.yarn.server.webproxy

Class AppReportFetcher

java.lang.Object

org.apache.hadoop.yarn.server.webproxy.AppReportFetcher

public class AppReportFetcher
extends Object

This class abstracts away how ApplicationReports are fetched.

Constructor Summary

Constructors

Constructor and Description
AppReportFetcher(org.apache.hadoop.conf.Configuration conf) Create a new Connection to the RM to fetch Application reports.
AppReportFetcher(org.apache.hadoop.conf.Configuration conf, org.apache.hadoop.yarn.api.ApplicationClientProtocol applicationsManager) Just call directly into the applicationsManager given instead of creating a remote connection to it.

Method Summary

Methods

Modifier and Type	Method and Description
org.apache.hadoop.yarn.api.records.ApplicationReport	getApplicationReport(org.apache.hadoop.yarn.api.records.ApplicationId appId) Get a report for the specified app.
void	stop()

Methods inherited from class java.lang.Object

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

Constructor Detail

AppReportFetcher

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

Create a new Connection to the RM to fetch Application reports.

Parameters:

conf - the conf to use to know where the RM is.

AppReportFetcher

public AppReportFetcher(org.apache.hadoop.conf.Configuration conf,
                org.apache.hadoop.yarn.api.ApplicationClientProtocol applicationsManager)

Just call directly into the applicationsManager given instead of creating a remote connection to it. This is mostly for when the Proxy is running as part of the RM already.

Parameters:

conf - the configuration to use

applicationsManager - what to use to get the RM reports.

Method Detail

getApplicationReport

public org.apache.hadoop.yarn.api.records.ApplicationReport getApplicationReport(org.apache.hadoop.yarn.api.records.ApplicationId appId)
                                                                          throws org.apache.hadoop.yarn.exceptions.YarnException,
                                                                                 IOException

Get a report for the specified app.

Parameters:

appId - the id of the application to get.

Returns:

the ApplicationReport for that app.

Throws:

org.apache.hadoop.yarn.exceptions.YarnException - on any error.

IOException

stop

public void stop()