Package org.apache.flink.runtime.scheduler

Interface OperatorCoordinatorHandler

All Known Implementing Classes:
DefaultOperatorCoordinatorHandler
public interface OperatorCoordinatorHandler
Handler for the OperatorCoordinators.

  • Method Details

    • initializeOperatorCoordinators

      void initializeOperatorCoordinators(org.apache.flink.runtime.concurrent.ComponentMainThreadExecutor mainThreadExecutor)
      Initialize operator coordinators.
      Parameters:
      mainThreadExecutor - Executor for submitting work to the main thread.

    • startAllOperatorCoordinators

      void startAllOperatorCoordinators()
      Start all operator coordinators.

    • disposeAllOperatorCoordinators

      void disposeAllOperatorCoordinators()
      Dispose all operator coordinators.

    • deliverOperatorEventToCoordinator

      void deliverOperatorEventToCoordinator(ExecutionAttemptID taskExecutionId, OperatorID operatorId, OperatorEvent event) throws org.apache.flink.util.FlinkException
      Delivers an OperatorEvent to a OperatorCoordinator.
      Parameters:
      taskExecutionId - Execution attempt id of the originating task.
      operatorId - OperatorId of the target OperatorCoordinator.
      event - Event to deliver to the OperatorCoordinator.
      Throws:
      org.apache.flink.util.FlinkException - If no coordinator is registered for operator.

    • deliverCoordinationRequestToCoordinator

      CompletableFuture<CoordinationResponse> deliverCoordinationRequestToCoordinator(OperatorID operator, CoordinationRequest request) throws org.apache.flink.util.FlinkException
      Deliver coordination request from the client to the coordinator.
      Parameters:
      operator - Id of target operator.
      request - request for the operator.
      Returns:
      Future with the response.
      Throws:
      org.apache.flink.util.FlinkException - If the coordinator doesn't exist or if it can not handle the request.

    • registerAndStartNewCoordinators

      void registerAndStartNewCoordinators(Collection<OperatorCoordinatorHolder> coordinators, org.apache.flink.runtime.concurrent.ComponentMainThreadExecutor mainThreadExecutor, int parallelism)
      Register and start new operator coordinators.
      Parameters:
      coordinators - the operator coordinator to be registered.
      mainThreadExecutor - Executor for submitting work to the main thread.