Examples with RemoteSourceNode io.trino.sql.planner.plan.RemoteSourceNode used on opensource projects

Example 1 with RemoteSourceNode

use of io.trino.sql.planner.plan.RemoteSourceNode in project trino by trinodb.

the class FaultTolerantStageScheduler method schedule.

public synchronized void schedule() throws Exception {
    if (failure != null) {
        propagateIfPossible(failure, Exception.class);
        throw new RuntimeException(failure);
    }
    if (closed) {
        return;
    }
    if (isFinished()) {
        return;
    }
    if (!blocked.isDone()) {
        return;
    }
    if (taskSource == null) {
        Map<PlanFragmentId, ListenableFuture<List<ExchangeSourceHandle>>> sourceHandles = sourceExchanges.entrySet().stream().collect(toImmutableMap(Map.Entry::getKey, entry -> toListenableFuture(entry.getValue().getSourceHandles())));
        List<ListenableFuture<List<ExchangeSourceHandle>>> blockedFutures = sourceHandles.values().stream().filter(future -> !future.isDone()).collect(toImmutableList());
        if (!blockedFutures.isEmpty()) {
            blocked = asVoid(allAsList(blockedFutures));
            return;
        }
        Multimap<PlanFragmentId, ExchangeSourceHandle> exchangeSources = sourceHandles.entrySet().stream().collect(flatteningToImmutableListMultimap(Map.Entry::getKey, entry -> getFutureValue(entry.getValue()).stream()));
        taskSource = taskSourceFactory.create(session, stage.getFragment(), sourceExchanges, exchangeSources, stage::recordGetSplitTime, sourceBucketToPartitionMap, sourceBucketNodeMap);
    }
    while (!queuedPartitions.isEmpty() || !taskSource.isFinished()) {
        while (queuedPartitions.isEmpty() && !taskSource.isFinished()) {
            List<TaskDescriptor> tasks = taskSource.getMoreTasks();
            for (TaskDescriptor task : tasks) {
                queuedPartitions.add(task.getPartitionId());
                allPartitions.add(task.getPartitionId());
                taskDescriptorStorage.put(stage.getStageId(), task);
                sinkExchange.ifPresent(exchange -> {
                    ExchangeSinkHandle exchangeSinkHandle = exchange.addSink(task.getPartitionId());
                    partitionToExchangeSinkHandleMap.put(task.getPartitionId(), exchangeSinkHandle);
                });
            }
            if (taskSource.isFinished()) {
                sinkExchange.ifPresent(Exchange::noMoreSinks);
            }
        }
        if (queuedPartitions.isEmpty()) {
            break;
        }
        int partition = queuedPartitions.peek();
        Optional<TaskDescriptor> taskDescriptorOptional = taskDescriptorStorage.get(stage.getStageId(), partition);
        if (taskDescriptorOptional.isEmpty()) {
            // query has been terminated
            return;
        }
        TaskDescriptor taskDescriptor = taskDescriptorOptional.get();
        MemoryRequirements memoryRequirements = partitionMemoryRequirements.computeIfAbsent(partition, ignored -> partitionMemoryEstimator.getInitialMemoryRequirements(session, taskDescriptor.getNodeRequirements().getMemory()));
        if (nodeLease == null) {
            NodeRequirements nodeRequirements = taskDescriptor.getNodeRequirements();
            nodeRequirements = nodeRequirements.withMemory(memoryRequirements.getRequiredMemory());
            nodeLease = nodeAllocator.acquire(nodeRequirements);
        }
        if (!nodeLease.getNode().isDone()) {
            blocked = asVoid(nodeLease.getNode());
            return;
        }
        NodeInfo node = getFutureValue(nodeLease.getNode());
        queuedPartitions.poll();
        Multimap<PlanNodeId, Split> tableScanSplits = taskDescriptor.getSplits();
        Multimap<PlanNodeId, Split> remoteSplits = createRemoteSplits(taskDescriptor.getExchangeSourceHandles());
        Multimap<PlanNodeId, Split> taskSplits = ImmutableListMultimap.<PlanNodeId, Split>builder().putAll(tableScanSplits).putAll(remoteSplits).build();
        int attemptId = getNextAttemptIdForPartition(partition);
        OutputBuffers outputBuffers;
        Optional<ExchangeSinkInstanceHandle> exchangeSinkInstanceHandle;
        if (sinkExchange.isPresent()) {
            ExchangeSinkHandle sinkHandle = partitionToExchangeSinkHandleMap.get(partition);
            exchangeSinkInstanceHandle = Optional.of(sinkExchange.get().instantiateSink(sinkHandle, attemptId));
            outputBuffers = createSpoolingExchangeOutputBuffers(exchangeSinkInstanceHandle.get());
        } else {
            exchangeSinkInstanceHandle = Optional.empty();
            // stage will be consumed by the coordinator using direct exchange
            outputBuffers = createInitialEmptyOutputBuffers(PARTITIONED).withBuffer(new OutputBuffers.OutputBufferId(0), 0).withNoMoreBufferIds();
        }
        Set<PlanNodeId> allSourcePlanNodeIds = ImmutableSet.<PlanNodeId>builder().addAll(stage.getFragment().getPartitionedSources()).addAll(stage.getFragment().getRemoteSourceNodes().stream().map(RemoteSourceNode::getId).iterator()).build();
        RemoteTask task = stage.createTask(node.getNode(), partition, attemptId, sinkBucketToPartitionMap, outputBuffers, taskSplits, allSourcePlanNodeIds.stream().collect(toImmutableListMultimap(Function.identity(), planNodeId -> Lifespan.taskWide())), allSourcePlanNodeIds).orElseThrow(() -> new VerifyException("stage execution is expected to be active"));
        partitionToRemoteTaskMap.put(partition, task);
        runningTasks.put(task.getTaskId(), task);
        runningNodes.put(task.getTaskId(), nodeLease);
        nodeLease = null;
        if (taskFinishedFuture == null) {
            taskFinishedFuture = SettableFuture.create();
        }
        taskLifecycleListener.taskCreated(stage.getFragment().getId(), task);
        task.addStateChangeListener(taskStatus -> updateTaskStatus(taskStatus, exchangeSinkInstanceHandle));
        task.start();
    }
    if (taskFinishedFuture != null && !taskFinishedFuture.isDone()) {
        blocked = taskFinishedFuture;
    }
}

Example 2 with RemoteSourceNode

use of io.trino.sql.planner.plan.RemoteSourceNode in project trino by trinodb.

the class PipelinedStageExecution method sourceTaskCreated.

private synchronized void sourceTaskCreated(PlanFragmentId fragmentId, RemoteTask sourceTask) {
    requireNonNull(fragmentId, "fragmentId is null");
    RemoteSourceNode remoteSource = exchangeSources.get(fragmentId);
    checkArgument(remoteSource != null, "Unknown remote source %s. Known sources are %s", fragmentId, exchangeSources.keySet());
    sourceTasks.put(fragmentId, sourceTask);
    OutputBufferManager outputBufferManager = outputBufferManagers.get(fragmentId);
    sourceTask.setOutputBuffers(outputBufferManager.getOutputBuffers());
    for (RemoteTask destinationTask : getAllTasks()) {
        destinationTask.addSplits(ImmutableMultimap.of(remoteSource.getId(), createExchangeSplit(sourceTask, destinationTask)));
    }
}

Example 3 with RemoteSourceNode

use of io.trino.sql.planner.plan.RemoteSourceNode in project trino by trinodb.

the class AllAtOnceExecutionSchedule method getPreferredScheduleOrder.

@VisibleForTesting
static List<PlanFragmentId> getPreferredScheduleOrder(Collection<PlanFragment> fragments) {
    // determine output fragment
    Set<PlanFragmentId> remoteSources = fragments.stream().map(PlanFragment::getRemoteSourceNodes).flatMap(Collection::stream).map(RemoteSourceNode::getSourceFragmentIds).flatMap(Collection::stream).collect(toImmutableSet());
    Set<PlanFragment> rootFragments = fragments.stream().filter(fragment -> !remoteSources.contains(fragment.getId())).collect(toImmutableSet());
    Visitor visitor = new Visitor(fragments);
    rootFragments.forEach(fragment -> visitor.processFragment(fragment.getId()));
    return visitor.getSchedulerOrder();
}

Example 4 with RemoteSourceNode

use of io.trino.sql.planner.plan.RemoteSourceNode in project trino by trinodb.

the class TestSqlStage method createExchangePlanFragment.

private static PlanFragment createExchangePlanFragment() {
    PlanNode planNode = new RemoteSourceNode(new PlanNodeId("exchange"), ImmutableList.of(new PlanFragmentId("source")), ImmutableList.of(new Symbol("column")), Optional.empty(), REPARTITION, RetryPolicy.NONE);
    ImmutableMap.Builder<Symbol, Type> types = ImmutableMap.builder();
    for (Symbol symbol : planNode.getOutputSymbols()) {
        types.put(symbol, VARCHAR);
    }
    return new PlanFragment(new PlanFragmentId("exchange_fragment_id"), planNode, types.buildOrThrow(), SOURCE_DISTRIBUTION, ImmutableList.of(planNode.getId()), new PartitioningScheme(Partitioning.create(SINGLE_DISTRIBUTION, ImmutableList.of()), planNode.getOutputSymbols()), ungroupedExecution(), StatsAndCosts.empty(), Optional.empty());
}

Example 5 with RemoteSourceNode

use of io.trino.sql.planner.plan.RemoteSourceNode in project trino by trinodb.

the class TestSourcePartitionedScheduler method createFragment.

private static PlanFragment createFragment() {
    Symbol symbol = new Symbol("column");
    Symbol buildSymbol = new Symbol("buildColumn");
    // table scan with splitCount splits
    TableScanNode tableScan = TableScanNode.newInstance(TABLE_SCAN_NODE_ID, TEST_TABLE_HANDLE, ImmutableList.of(symbol), ImmutableMap.of(symbol, new TestingColumnHandle("column")), false, Optional.empty());
    FilterNode filterNode = new FilterNode(new PlanNodeId("filter_node_id"), tableScan, createDynamicFilterExpression(TEST_SESSION, createTestMetadataManager(), DYNAMIC_FILTER_ID, VARCHAR, symbol.toSymbolReference()));
    RemoteSourceNode remote = new RemoteSourceNode(new PlanNodeId("remote_id"), new PlanFragmentId("plan_fragment_id"), ImmutableList.of(buildSymbol), Optional.empty(), REPLICATE, RetryPolicy.NONE);
    return new PlanFragment(new PlanFragmentId("plan_id"), new JoinNode(new PlanNodeId("join_id"), INNER, filterNode, remote, ImmutableList.of(), tableScan.getOutputSymbols(), remote.getOutputSymbols(), false, Optional.empty(), Optional.empty(), Optional.empty(), Optional.empty(), Optional.empty(), ImmutableMap.of(DYNAMIC_FILTER_ID, buildSymbol), Optional.empty()), ImmutableMap.of(symbol, VARCHAR), SOURCE_DISTRIBUTION, ImmutableList.of(TABLE_SCAN_NODE_ID), new PartitioningScheme(Partitioning.create(SINGLE_DISTRIBUTION, ImmutableList.of()), ImmutableList.of(symbol)), ungroupedExecution(), StatsAndCosts.empty(), Optional.empty());
}