ml.shifu.guagua.master

Class MasterTimer<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>

java.lang.Object

ml.shifu.guagua.master.MasterTimer<MASTER_RESULT,WORKER_RESULT>

Type Parameters:

MASTER_RESULT - master computation result in each iteration.

WORKER_RESULT - worker computation result in each iteration.

All Implemented Interfaces:

MasterInterceptor<MASTER_RESULT,WORKER_RESULT>

public class MasterTimer<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>
extends Object
implements MasterInterceptor<MASTER_RESULT,WORKER_RESULT>

MasterTimer is used to log execution time of preXXXX of interceptors, master computation and postXXXX of interceptors. MasterTimer includes waiting time and should be set as system interceptor.

MasterTimer is set as one master interceptor by default.

Constructor Summary

Constructors

Constructor and Description
MasterTimer()

Method Summary

Modifier and Type	Method and Description
void	postApplication(MasterContext<MASTER_RESULT,WORKER_RESULT> context) The hook point after any computation logic.
void	postIteration(MasterContext<MASTER_RESULT,WORKER_RESULT> context) The hook point after computation of each iteration.
void	preApplication(MasterContext<MASTER_RESULT,WORKER_RESULT> context) The hook point before any computation logic.
void	preIteration(MasterContext<MASTER_RESULT,WORKER_RESULT> context) The hook point before computation of each iteration.

Methods inherited from class java.lang.Object

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

Constructor Detail

MasterTimer

public MasterTimer()

Method Detail

preApplication

public void preApplication(MasterContext<MASTER_RESULT,WORKER_RESULT> context)

Description copied from interface: MasterInterceptor

The hook point before any computation logic.

Specified by:

preApplication in interface MasterInterceptor<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>

Parameters:

context - the master context instance which includes worker results and other useful parameters.

preIteration

public void preIteration(MasterContext<MASTER_RESULT,WORKER_RESULT> context)

Description copied from interface: MasterInterceptor

The hook point before computation of each iteration.

Specified by:

preIteration in interface MasterInterceptor<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>

Parameters:

context - the master context instance which includes worker results and other useful parameters.

postIteration

public void postIteration(MasterContext<MASTER_RESULT,WORKER_RESULT> context)

Description copied from interface: MasterInterceptor

The hook point after computation of each iteration.

Specified by:

postIteration in interface MasterInterceptor<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>

Parameters:

context - the master context instance which includes worker results and other useful parameters.

postApplication

public void postApplication(MasterContext<MASTER_RESULT,WORKER_RESULT> context)

Description copied from interface: MasterInterceptor

The hook point after any computation logic.

Specified by:

postApplication in interface MasterInterceptor<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>

Parameters:

context - the master context instance which includes worker results and other useful parameters.