org.apache.flink.runtime.iterative.task

类 IterationSynchronizationSinkTask

java.lang.Object

org.apache.flink.runtime.jobgraph.tasks.AbstractInvokable

org.apache.flink.runtime.iterative.task.IterationSynchronizationSinkTask

所有已实现的接口:

Terminable, CheckpointableTask, CoordinatedTask, TaskInvokable

public class IterationSynchronizationSinkTask
extends AbstractInvokable
implements Terminable

The task responsible for synchronizing all iteration heads, implemented as an output task. This task will never see any data. In each superstep, it simply waits until it has received a WorkerDoneEvent from each head and will send back an AllWorkersDoneEvent to signal that the next superstep can begin.

构造器概要

构造器

构造器和说明
IterationSynchronizationSinkTask(Environment environment) Create an Invokable task and set its environment.

方法概要

限定符和类型	方法和说明
void	invoke() Starts the execution.
void	requestTermination()
boolean	terminationRequested()

从类继承的方法 org.apache.flink.runtime.jobgraph.tasks.AbstractInvokable

abortCheckpointOnBarrier, cancel, cleanUp, dispatchOperatorEvent, getCurrentNumberOfSubtasks, getEnvironment, getExecutionConfig, getIndexInSubtaskGroup, getJobConfiguration, getTaskConfiguration, getUserCodeClassLoader, isUsingNonBlockingInput, maybeInterruptOnCancel, notifyCheckpointAbortAsync, notifyCheckpointCompleteAsync, notifyCheckpointSubsumedAsync, restore, triggerCheckpointAsync, triggerCheckpointOnBarrier

从类继承的方法 java.lang.Object

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

构造器详细资料

IterationSynchronizationSinkTask

public IterationSynchronizationSinkTask(Environment environment)

Create an Invokable task and set its environment.

参数:

environment - The environment assigned to this invokable.

方法详细资料

invoke

public void invoke()
            throws Exception

从接口复制的说明: TaskInvokable

Starts the execution.

This method is called by the task manager when the actual execution of the task starts.

All resources should be cleaned up by calling TaskInvokable.cleanUp(Throwable) ()} after the method returns.

指定者:

invoke 在接口中 TaskInvokable

指定者:

invoke 在类中 AbstractInvokable

抛出:

Exception

terminationRequested

public boolean terminationRequested()

指定者:

terminationRequested 在接口中 Terminable

requestTermination

public void requestTermination()

指定者:

requestTermination 在接口中 Terminable