Package org.apache.hadoop.yarn.ams

Interface ApplicationMasterServiceProcessor

public interface ApplicationMasterServiceProcessor

Interface to abstract out the the actual processing logic of the Application Master Service.

Method Summary

Modifier and Type	Method	Description
void	allocate(ApplicationAttemptId appAttemptId, AllocateRequest request, AllocateResponse response)	Allocate call.
void	finishApplicationMaster(ApplicationAttemptId applicationAttemptId, FinishApplicationMasterRequest request, FinishApplicationMasterResponse response)	Finish AM.
void	init(ApplicationMasterServiceContext amsContext, ApplicationMasterServiceProcessor nextProcessor)	Initialize with and ApplicationMasterService Context as well as the next processor in the chain.
void	registerApplicationMaster(ApplicationAttemptId applicationAttemptId, RegisterApplicationMasterRequest request, RegisterApplicationMasterResponse response)	Register AM attempt.

Method Details

init

void init(ApplicationMasterServiceContext amsContext,
 ApplicationMasterServiceProcessor nextProcessor)

Initialize with and ApplicationMasterService Context as well as the next processor in the chain.

Parameters:

amsContext - AMSContext.

nextProcessor - next ApplicationMasterServiceProcessor

registerApplicationMaster

void registerApplicationMaster(ApplicationAttemptId applicationAttemptId,
 RegisterApplicationMasterRequest request,
 RegisterApplicationMasterResponse response)
                        throws IOException,
YarnException

Register AM attempt.

Parameters:

applicationAttemptId - applicationAttemptId.

request - Register Request.

response - Register Response.

Throws:

IOException - IOException.

YarnException - in critical situation where invalid profiles/resources are added.

allocate

void allocate(ApplicationAttemptId appAttemptId,
 AllocateRequest request,
 AllocateResponse response)
       throws YarnException

Allocate call.

Parameters:

appAttemptId - appAttemptId.

request - Allocate Request.

response - Allocate Response.

Throws:

YarnException - YarnException.

finishApplicationMaster

void finishApplicationMaster(ApplicationAttemptId applicationAttemptId,
 FinishApplicationMasterRequest request,
 FinishApplicationMasterResponse response)

Finish AM.

Parameters:

applicationAttemptId - applicationAttemptId.

request - Finish AM Request.

response - Finish AM Response.