ml.shifu.guagua

Class BasicCoordinator.RetryCoordinatorCommand

java.lang.Object

ml.shifu.guagua.BasicCoordinator.BasicCoordinatorCommand

ml.shifu.guagua.BasicCoordinator.RetryCoordinatorCommand

All Implemented Interfaces:

BasicCoordinator.CoordinatorCommand

Enclosing class:

BasicCoordinator<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>

public abstract static class BasicCoordinator.RetryCoordinatorCommand
extends BasicCoordinator.BasicCoordinatorCommand

BasicCoordinator.RetryCoordinatorCommand is used to wrap retry logic. retryExecution() will be retried by a fixed sleeping time or an increasing time.

Constructor Summary

Constructors

Constructor and Description
RetryCoordinatorCommand(boolean isFixedTime, long sleepUnitTime)

Method Summary

Modifier and Type	Method and Description
void	doExecute() Real method to do coordinator operation.
long	getElapsedTime()
protected boolean	isTerminated(int workersCompleted, int workers, double minWorkersRatio, long minWorkersTimeout) Return true for retryExecution() if in minWorkersTimeout time get (int) (workers * minWorkersRatio)) workers completed.
abstract boolean	retryExecution()

Methods inherited from class ml.shifu.guagua.BasicCoordinator.BasicCoordinatorCommand

execute

Methods inherited from class java.lang.Object

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

Constructor Detail

RetryCoordinatorCommand

public RetryCoordinatorCommand(boolean isFixedTime,
                               long sleepUnitTime)

Method Detail

doExecute

public void doExecute()
               throws Exception,
                      InterruptedException

Description copied from class: BasicCoordinator.BasicCoordinatorCommand

Real method to do coordinator operation.

Specified by:

doExecute in class BasicCoordinator.BasicCoordinatorCommand

Throws:

Exception

InterruptedException

retryExecution

public abstract boolean retryExecution()
                                throws Exception,
                                       InterruptedException

Throws:

Exception

InterruptedException

getElapsedTime

public long getElapsedTime()

isTerminated

protected boolean isTerminated(int workersCompleted,
                               int workers,
                               double minWorkersRatio,
                               long minWorkersTimeout)

Return true for retryExecution() if in minWorkersTimeout time get (int) (workers * minWorkersRatio)) workers completed.