Java TaskConfig.setIsWorksetIteration方法代碼示例

import org.apache.flink.runtime.operators.util.TaskConfig; //導入方法依賴的package包/類
private static AbstractJobVertex createIterationHead(JobGraph jobGraph, int numSubTasks,
		TypeSerializerFactory<?> serializer,
		TypeComparatorFactory<?> comparator,
		TypePairComparatorFactory<?, ?> pairComparator) {

	AbstractJobVertex head = JobGraphUtils.createTask(IterationHeadPactTask.class, "Join With Edges (Iteration Head)", jobGraph, numSubTasks);
	TaskConfig headConfig = new TaskConfig(head.getConfiguration());
	{
		headConfig.setIterationId(ITERATION_ID);

		// initial input / workset
		headConfig.addInputToGroup(0);
		headConfig.setInputSerializer(serializer, 0);
		headConfig.setInputComparator(comparator, 0);
		headConfig.setInputLocalStrategy(0, LocalStrategy.NONE);
		headConfig.setIterationHeadPartialSolutionOrWorksetInputIndex(0);

		// regular plan input (second input to the join)
		headConfig.addInputToGroup(1);
		headConfig.setInputSerializer(serializer, 1);
		headConfig.setInputComparator(comparator, 1);
		headConfig.setInputLocalStrategy(1, LocalStrategy.NONE);
		headConfig.setInputCached(1, true);
		headConfig.setRelativeInputMaterializationMemory(1, MEM_FRAC_PER_CONSUMER);

		// initial solution set input
		headConfig.addInputToGroup(2);
		headConfig.setInputSerializer(serializer, 2);
		headConfig.setInputComparator(comparator, 2);
		headConfig.setInputLocalStrategy(2, LocalStrategy.NONE);
		headConfig.setIterationHeadSolutionSetInputIndex(2);

		headConfig.setSolutionSetSerializer(serializer);
		headConfig.setSolutionSetComparator(comparator);

		// back channel / iterations
		headConfig.setIsWorksetIteration();
		headConfig.setRelativeBackChannelMemory(MEM_FRAC_PER_CONSUMER);
		headConfig.setRelativeSolutionSetMemory(MEM_FRAC_PER_CONSUMER );

		// output into iteration
		headConfig.setOutputSerializer(serializer);
		headConfig.addOutputShipStrategy(ShipStrategyType.PARTITION_HASH);
		headConfig.setOutputComparator(comparator, 0);

		// final output
		TaskConfig headFinalOutConfig = new TaskConfig(new Configuration());
		headFinalOutConfig.setOutputSerializer(serializer);
		headFinalOutConfig.addOutputShipStrategy(ShipStrategyType.FORWARD);
		headConfig.setIterationHeadFinalOutputConfig(headFinalOutConfig);

		// the sync
		headConfig.setIterationHeadIndexOfSyncOutput(2);

		// the driver
		headConfig.setDriver(BuildSecondCachedMatchDriver.class);
		headConfig.setDriverStrategy(DriverStrategy.HYBRIDHASH_BUILD_SECOND);
		headConfig.setStubWrapper(
			new UserCodeClassWrapper<NeighborWithComponentIDJoin>(NeighborWithComponentIDJoin.class));
		headConfig.setDriverComparator(comparator, 0);
		headConfig.setDriverComparator(comparator, 1);
		headConfig.setDriverPairComparator(pairComparator);
		headConfig.setRelativeMemoryDriver(MEM_FRAC_PER_CONSUMER);

		headConfig.addIterationAggregator(
			WorksetEmptyConvergenceCriterion.AGGREGATOR_NAME, new LongSumAggregator());
	}

	return head;
}
 

import org.apache.flink.runtime.operators.util.TaskConfig; //導入方法依賴的package包/類
public JobGraph createJobGraphUnifiedTails(
		String verticesPath, String edgesPath, String resultPath, int numSubTasks, int maxIterations)
{
	// -- init -------------------------------------------------------------------------------------------------
	final TypeSerializerFactory<?> serializer = RecordSerializerFactory.get();
	@SuppressWarnings("unchecked")
	final TypeComparatorFactory<?> comparator =
		new RecordComparatorFactory(new int[] { 0 }, new Class[] { LongValue.class }, new boolean[] { true });
	final TypePairComparatorFactory<?, ?> pairComparator = RecordPairComparatorFactory.get();

	JobGraph jobGraph = new JobGraph("Connected Components (Unified Tails)");

	// -- invariant vertices -----------------------------------------------------------------------------------
	InputFormatVertex vertices = createVerticesInput(jobGraph, verticesPath, numSubTasks, serializer, comparator);
	InputFormatVertex edges = createEdgesInput(jobGraph, edgesPath, numSubTasks, serializer, comparator);
	AbstractJobVertex head = createIterationHead(jobGraph, numSubTasks, serializer, comparator, pairComparator);

	AbstractJobVertex intermediate = createIterationIntermediate(jobGraph, numSubTasks, serializer, comparator);
	TaskConfig intermediateConfig = new TaskConfig(intermediate.getConfiguration());

	OutputFormatVertex output = createOutput(jobGraph, resultPath, numSubTasks, serializer);
	AbstractJobVertex sync = createSync(jobGraph, numSubTasks, maxIterations);

	// --------------- the tail (solution set join) ---------------
	AbstractJobVertex tail = JobGraphUtils.createTask(IterationTailPactTask.class, "IterationTail", jobGraph, numSubTasks);
	TaskConfig tailConfig = new TaskConfig(tail.getConfiguration());
	{
		tailConfig.setIterationId(ITERATION_ID);

		tailConfig.setIsWorksetIteration();
		tailConfig.setIsWorksetUpdate();

		tailConfig.setIsSolutionSetUpdate();
		tailConfig.setIsSolutionSetUpdateWithoutReprobe();

		// inputs and driver
		tailConfig.addInputToGroup(0);
		tailConfig.setInputSerializer(serializer, 0);

		// output
		tailConfig.setOutputSerializer(serializer);

		// the driver
		tailConfig.setDriver(JoinWithSolutionSetSecondDriver.class);
		tailConfig.setDriverStrategy(DriverStrategy.HYBRIDHASH_BUILD_SECOND);
		tailConfig.setDriverComparator(comparator, 0);
		tailConfig.setDriverPairComparator(pairComparator);
		
		tailConfig.setStubWrapper(new UserCodeClassWrapper<UpdateComponentIdMatch>(UpdateComponentIdMatch.class));
	}

	// -- edges ------------------------------------------------------------------------------------------------
	JobGraphUtils.connect(vertices, head, ChannelType.NETWORK, DistributionPattern.BIPARTITE);
	JobGraphUtils.connect(edges, head, ChannelType.NETWORK, DistributionPattern.BIPARTITE);
	JobGraphUtils.connect(vertices, head, ChannelType.NETWORK, DistributionPattern.BIPARTITE);

	JobGraphUtils.connect(head, intermediate, ChannelType.NETWORK, DistributionPattern.BIPARTITE);
	intermediateConfig.setGateIterativeWithNumberOfEventsUntilInterrupt(0, numSubTasks);

	JobGraphUtils.connect(intermediate, tail, ChannelType.IN_MEMORY, DistributionPattern.POINTWISE);
	tailConfig.setGateIterativeWithNumberOfEventsUntilInterrupt(0, 1);

	JobGraphUtils.connect(head, output, ChannelType.IN_MEMORY, DistributionPattern.POINTWISE);

	JobGraphUtils.connect(head, sync, ChannelType.NETWORK, DistributionPattern.POINTWISE);

	SlotSharingGroup sharingGroup = new SlotSharingGroup();
	vertices.setSlotSharingGroup(sharingGroup);
	edges.setSlotSharingGroup(sharingGroup);
	head.setSlotSharingGroup(sharingGroup);
	intermediate.setSlotSharingGroup(sharingGroup);
	tail.setSlotSharingGroup(sharingGroup);
	output.setSlotSharingGroup(sharingGroup);
	sync.setSlotSharingGroup(sharingGroup);
	
	intermediate.setStrictlyCoLocatedWith(head);
	tail.setStrictlyCoLocatedWith(head);

	return jobGraph;
}