Package org.apache.flink.runtime.scheduler

Class DefaultOperatorCoordinatorHandler

java.lang.Object

org.apache.flink.runtime.scheduler.DefaultOperatorCoordinatorHandler

All Implemented Interfaces:

OperatorCoordinatorHandler

public class DefaultOperatorCoordinatorHandler
extends Object
implements OperatorCoordinatorHandler

Default handler for the OperatorCoordinators.

Constructor Summary

Constructors

Constructor	Description
DefaultOperatorCoordinatorHandler(ExecutionGraph executionGraph, GlobalFailureHandler globalFailureHandler)

Method Summary

Modifier and Type	Method	Description
CompletableFuture<CoordinationResponse>	deliverCoordinationRequestToCoordinator(OperatorID operator, CoordinationRequest request)	Deliver coordination request from the client to the coordinator.
void	deliverOperatorEventToCoordinator(ExecutionAttemptID taskExecutionId, OperatorID operatorId, OperatorEvent evt)	Delivers an OperatorEvent to a OperatorCoordinator.
void	disposeAllOperatorCoordinators()	Dispose all operator coordinators.
void	initializeOperatorCoordinators(ComponentMainThreadExecutor mainThreadExecutor)	Initialize operator coordinators.
void	registerAndStartNewCoordinators(Collection<OperatorCoordinatorHolder> coordinators, ComponentMainThreadExecutor mainThreadExecutor, int parallelism)	Register and start new operator coordinators.
void	startAllOperatorCoordinators()	Start all operator coordinators.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultOperatorCoordinatorHandler

public DefaultOperatorCoordinatorHandler(ExecutionGraph executionGraph,
                                         GlobalFailureHandler globalFailureHandler)

Method Detail

initializeOperatorCoordinators

public void initializeOperatorCoordinators(ComponentMainThreadExecutor mainThreadExecutor)

Description copied from interface: OperatorCoordinatorHandler

Initialize operator coordinators.

Specified by:

initializeOperatorCoordinators in interface OperatorCoordinatorHandler

Parameters:

mainThreadExecutor - Executor for submitting work to the main thread.

startAllOperatorCoordinators

public void startAllOperatorCoordinators()

Description copied from interface: OperatorCoordinatorHandler

Start all operator coordinators.

Specified by:

startAllOperatorCoordinators in interface OperatorCoordinatorHandler

disposeAllOperatorCoordinators

public void disposeAllOperatorCoordinators()

Description copied from interface: OperatorCoordinatorHandler

Dispose all operator coordinators.

Specified by:

disposeAllOperatorCoordinators in interface OperatorCoordinatorHandler

deliverOperatorEventToCoordinator

public void deliverOperatorEventToCoordinator(ExecutionAttemptID taskExecutionId,
                                              OperatorID operatorId,
                                              OperatorEvent evt)
                                       throws FlinkException

Description copied from interface: OperatorCoordinatorHandler

Delivers an OperatorEvent to a OperatorCoordinator.

Specified by:

deliverOperatorEventToCoordinator in interface OperatorCoordinatorHandler

Parameters:

taskExecutionId - Execution attempt id of the originating task.

operatorId - OperatorId of the target OperatorCoordinator.

evt - Event to deliver to the OperatorCoordinator.

Throws:

FlinkException - If no coordinator is registered for operator.

deliverCoordinationRequestToCoordinator

public CompletableFuture<CoordinationResponse> deliverCoordinationRequestToCoordinator(OperatorID operator,
                                                                                       CoordinationRequest request)
                                                                                throws FlinkException

Description copied from interface: OperatorCoordinatorHandler

Deliver coordination request from the client to the coordinator.

Specified by:

deliverCoordinationRequestToCoordinator in interface OperatorCoordinatorHandler

Parameters:

operator - Id of target operator.

request - request for the operator.

Returns:

Future with the response.

Throws:

FlinkException - If the coordinator doesn't exist or if it can not handle the request.

registerAndStartNewCoordinators

public void registerAndStartNewCoordinators(Collection<OperatorCoordinatorHolder> coordinators,
                                            ComponentMainThreadExecutor mainThreadExecutor,
                                            int parallelism)

Description copied from interface: OperatorCoordinatorHandler

Register and start new operator coordinators.

Specified by:

registerAndStartNewCoordinators in interface OperatorCoordinatorHandler

Parameters:

coordinators - the operator coordinator to be registered.

mainThreadExecutor - Executor for submitting work to the main thread.