Package org.apache.hadoop.yarn.api.protocolrecords

Class FinishApplicationMasterRequest

java.lang.Object

org.apache.hadoop.yarn.api.protocolrecords.FinishApplicationMasterRequest

@Public
@Stable
public abstract class FinishApplicationMasterRequest
extends Object

The finalization request sent by the ApplicationMaster to inform the ResourceManager about its completion.

The final request includes details such:

• Final state of the ApplicationMaster
• Diagnostic information in case of failure of the ApplicationMaster
• Tracking URL

See Also:

• ApplicationMasterProtocol.finishApplicationMaster(FinishApplicationMasterRequest)

Constructor Summary

Constructors

Constructor	Description
FinishApplicationMasterRequest()

Method Summary

Modifier and Type	Method	Description
abstract String	getDiagnostics()	Get diagnostic information on application failure.
abstract FinalApplicationStatus	getFinalApplicationStatus()	Get final state of the ApplicationMaster.
abstract String	getTrackingUrl()	Get the tracking URL for the ApplicationMaster.
static FinishApplicationMasterRequest	newInstance(FinalApplicationStatus finalAppStatus, String diagnostics, String url)
abstract void	setDiagnostics(String diagnostics)	Set diagnostic information on application failure.
abstract void	setFinalApplicationStatus(FinalApplicationStatus finalState)	Set the final state of the ApplicationMaster
abstract void	setTrackingUrl(String url)	Set the final tracking URLfor the ApplicationMaster.

Methods inherited from class java.lang.Object

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

Constructor Details

FinishApplicationMasterRequest

public FinishApplicationMasterRequest()

Method Details

newInstance

@Public
@Stable
public static FinishApplicationMasterRequest newInstance(FinalApplicationStatus finalAppStatus,
 String diagnostics,
 String url)

getFinalApplicationStatus

@Public
@Stable
public abstract FinalApplicationStatus getFinalApplicationStatus()

Get final state of the ApplicationMaster.

Returns:

final state of the ApplicationMaster

setFinalApplicationStatus

@Public
@Stable
public abstract void setFinalApplicationStatus(FinalApplicationStatus finalState)

Set the final state of the ApplicationMaster

Parameters:

finalState - final state of the ApplicationMaster

getDiagnostics

@Public
@Stable
public abstract String getDiagnostics()

Get diagnostic information on application failure.

Returns:

diagnostic information on application failure

setDiagnostics

@Public
@Stable
public abstract void setDiagnostics(String diagnostics)

Set diagnostic information on application failure.

Parameters:

diagnostics - diagnostic information on application failure

getTrackingUrl

@Public
@Stable
public abstract String getTrackingUrl()

Get the tracking URL for the ApplicationMaster. This url if contains scheme then that will be used by resource manager web application proxy otherwise it will default to http.

Returns:

tracking URLfor the ApplicationMaster

setTrackingUrl

@Public
@Stable
public abstract void setTrackingUrl(String url)

Set the final tracking URLfor the ApplicationMaster. This is the web-URL to which ResourceManager or web-application proxy will redirect client/users once the application is finished and the ApplicationMaster is gone.

If the passed url has a scheme then that will be used by the ResourceManager and web-application proxy, otherwise the scheme will default to http.

Empty, null, "N/A" strings are all valid besides a real URL. In case an url isn't explicitly passed, it defaults to "N/A" on the ResourceManager.

Parameters:

url - tracking URLfor the ApplicationMaster