org.apache.reef.vortex.driver

Interface VortexMaster

@DefaultImplementation(value=org.apache.reef.vortex.driver.DefaultVortexMaster.class)
public interface VortexMaster

The heart of Vortex. Processes various tasklet related events/requests coming from different components of the system.

Method Summary

Methods

Modifier and Type	Method and Description
void	cancelTasklet(boolean mayInterruptIfRunning, int taskletId) Call this when a Tasklet is to be cancelled.
<TInput,TOutput> VortexFuture<TOutput>	enqueueTasklet(VortexFunction<TInput,TOutput> vortexFunction, TInput input, Optional<FutureCallback<TOutput>> callback) Submit a new Tasklet to be run sometime in the future, with an optional callback function on the result.
<TInput,TOutput> VortexAggregateFuture<TInput,TOutput>	enqueueTasklets(VortexAggregateFunction<TOutput> aggregateFunction, VortexFunction<TInput,TOutput> vortexFunction, VortexAggregatePolicy policy, List<TInput> inputs, Optional<FutureCallback<AggregateResult<TInput,TOutput>>> callback) Submits aggregate-able Tasklets to be run sometime in the future, with an optional callback function on the aggregation progress.
void	terminate() Release all resources and shut down.
void	workerAllocated(org.apache.reef.vortex.driver.VortexWorkerManager vortexWorkerManager) Call this when a new worker is up and running.
void	workerPreempted(String id) Call this when a worker is preempted.
void	workerReported(String workerId, WorkerToMasterReports workerToMasterReports) Call this when a worker has reported back.

Method Detail

enqueueTasklet

<TInput,TOutput> VortexFuture<TOutput> enqueueTasklet(VortexFunction<TInput,TOutput> vortexFunction,
                                                    TInput input,
                                                    Optional<FutureCallback<TOutput>> callback)

Submit a new Tasklet to be run sometime in the future, with an optional callback function on the result.

enqueueTasklets

<TInput,TOutput> VortexAggregateFuture<TInput,TOutput> enqueueTasklets(VortexAggregateFunction<TOutput> aggregateFunction,
                                                                     VortexFunction<TInput,TOutput> vortexFunction,
                                                                     VortexAggregatePolicy policy,
                                                                     List<TInput> inputs,
                                                                     Optional<FutureCallback<AggregateResult<TInput,TOutput>>> callback)

Submits aggregate-able Tasklets to be run sometime in the future, with an optional callback function on the aggregation progress.

cancelTasklet

void cancelTasklet(boolean mayInterruptIfRunning,
                 int taskletId)

Call this when a Tasklet is to be cancelled.

Parameters:

mayInterruptIfRunning - if true, will attempt to cancel running Tasklets; otherwise will only prevent a pending Tasklet from running.

taskletId - the ID of the Tasklet.

workerAllocated

void workerAllocated(org.apache.reef.vortex.driver.VortexWorkerManager vortexWorkerManager)

Call this when a new worker is up and running.

workerPreempted

void workerPreempted(String id)

Call this when a worker is preempted.

workerReported

void workerReported(String workerId,
                  WorkerToMasterReports workerToMasterReports)

Call this when a worker has reported back.

terminate

void terminate()

Release all resources and shut down.