org.apache.flink.runtime.scheduler.adaptivebatch

类 DefaultSpeculativeExecutionHandler

java.lang.Object

org.apache.flink.runtime.scheduler.adaptivebatch.DefaultSpeculativeExecutionHandler

所有已实现的接口:

SpeculativeExecutionHandler, SlowTaskDetectorListener

public class DefaultSpeculativeExecutionHandler
extends Object
implements SpeculativeExecutionHandler, SlowTaskDetectorListener

The default implementation of SpeculativeExecutionHandler.

构造器概要

构造器

构造器和说明
DefaultSpeculativeExecutionHandler(org.apache.flink.configuration.Configuration jobMasterConfiguration, BlocklistOperations blocklistOperations, Function<ExecutionVertexID,ExecutionVertex> executionVertexRetriever, Supplier<Map<ExecutionAttemptID,Execution>> registerExecutionsSupplier, BiConsumer<List<Execution>,Collection<ExecutionVertexID>> allocateSlotsAndDeployFunction, org.slf4j.Logger log)

方法概要

限定符和类型	方法和说明
boolean	handleTaskFailure(Execution failedExecution, Throwable error, BiConsumer<Execution,Throwable> handleLocalExecutionAttemptFailure) Handles a task failure.
void	init(ExecutionGraph executionGraph, org.apache.flink.runtime.concurrent.ComponentMainThreadExecutor mainThreadExecutor, org.apache.flink.metrics.MetricGroup metricGroup) Initial speculative execution handler.
void	notifySlowTasks(Map<ExecutionVertexID,Collection<ExecutionAttemptID>> slowTasks) Notify detected slow tasks.
void	notifyTaskFailed(Execution execution) Notifies that a task has failed its execution.
void	notifyTaskFinished(Execution execution, Function<ExecutionVertexID,CompletableFuture<?>> cancelPendingExecutionsFunction) Notifies that a task has finished its execution.
void	resetForNewExecution(ExecutionVertexID executionVertexId) Resets the state of the component for a new execution of a specific execution vertex.
void	stopSlowTaskDetector() Stops the slow task detector.

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

DefaultSpeculativeExecutionHandler

public DefaultSpeculativeExecutionHandler(org.apache.flink.configuration.Configuration jobMasterConfiguration,
                                          BlocklistOperations blocklistOperations,
                                          Function<ExecutionVertexID,ExecutionVertex> executionVertexRetriever,
                                          Supplier<Map<ExecutionAttemptID,Execution>> registerExecutionsSupplier,
                                          BiConsumer<List<Execution>,Collection<ExecutionVertexID>> allocateSlotsAndDeployFunction,
                                          org.slf4j.Logger log)

方法详细资料

init

public void init(ExecutionGraph executionGraph,
                 org.apache.flink.runtime.concurrent.ComponentMainThreadExecutor mainThreadExecutor,
                 org.apache.flink.metrics.MetricGroup metricGroup)

从接口复制的说明: SpeculativeExecutionHandler

Initial speculative execution handler.

指定者:

init 在接口中 SpeculativeExecutionHandler

stopSlowTaskDetector

public void stopSlowTaskDetector()

从接口复制的说明: SpeculativeExecutionHandler

Stops the slow task detector.

指定者:

stopSlowTaskDetector 在接口中 SpeculativeExecutionHandler

notifyTaskFinished

public void notifyTaskFinished(Execution execution,
                               Function<ExecutionVertexID,CompletableFuture<?>> cancelPendingExecutionsFunction)

从接口复制的说明: SpeculativeExecutionHandler

Notifies that a task has finished its execution.

指定者:

notifyTaskFinished 在接口中 SpeculativeExecutionHandler

参数:

execution - the execution that has finished

cancelPendingExecutionsFunction - the function to cancel pending executions

notifyTaskFailed

public void notifyTaskFailed(Execution execution)

从接口复制的说明: SpeculativeExecutionHandler

Notifies that a task has failed its execution.

指定者:

notifyTaskFailed 在接口中 SpeculativeExecutionHandler

参数:

execution - the execution that has failed

handleTaskFailure

public boolean handleTaskFailure(Execution failedExecution,
                                 @Nullable
                                 Throwable error,
                                 BiConsumer<Execution,Throwable> handleLocalExecutionAttemptFailure)

从接口复制的说明: SpeculativeExecutionHandler

Handles a task failure.

指定者:

handleTaskFailure 在接口中 SpeculativeExecutionHandler

参数:

failedExecution - the execution that failed

error - the error that caused the failure, if available

handleLocalExecutionAttemptFailure - a consumer that handles local execution attempt failure

返回:

true if the failure was handled as a local failure, false otherwise

notifySlowTasks

public void notifySlowTasks(Map<ExecutionVertexID,Collection<ExecutionAttemptID>> slowTasks)

从接口复制的说明: SlowTaskDetectorListener

Notify detected slow tasks.

指定者:

notifySlowTasks 在接口中 SlowTaskDetectorListener

参数:

slowTasks - the map of execution vertices and their execution attempts which are detected as slow.

resetForNewExecution

public void resetForNewExecution(ExecutionVertexID executionVertexId)

从接口复制的说明: SpeculativeExecutionHandler

Resets the state of the component for a new execution of a specific execution vertex.

指定者:

resetForNewExecution 在接口中 SpeculativeExecutionHandler

参数:

executionVertexId - the ID of the execution vertex to reset