Examples with RemoteSplit io.trino.split.RemoteSplit used on opensource projects

Example 1 with RemoteSplit

use of io.trino.split.RemoteSplit in project trino by trinodb.

the class MergeOperator method addSplit.

@Override
public Supplier<Optional<UpdatablePageSource>> addSplit(Split split) {
    requireNonNull(split, "split is null");
    checkArgument(split.getConnectorSplit() instanceof RemoteSplit, "split is not a remote split");
    checkState(!blockedOnSplits.isDone(), "noMoreSplits has been called already");
    TaskContext taskContext = operatorContext.getDriverContext().getPipelineContext().getTaskContext();
    DirectExchangeClient client = closer.register(directExchangeClientSupplier.get(taskContext.getTaskId().getQueryId(), new ExchangeId(format("direct-exchange-merge-%s-%s", taskContext.getTaskId().getStageId().getId(), sourceId)), operatorContext.localUserMemoryContext(), taskContext::sourceTaskFailed, RetryPolicy.NONE));
    RemoteSplit remoteSplit = (RemoteSplit) split.getConnectorSplit();
    // Only fault tolerant execution mode is expected to execute external exchanges.
    // MergeOperator is used for distributed sort only and it is not compatible (and disabled) with fault tolerant execution mode.
    DirectExchangeInput exchangeInput = (DirectExchangeInput) remoteSplit.getExchangeInput();
    client.addLocation(exchangeInput.getTaskId(), URI.create(exchangeInput.getLocation()));
    client.noMoreLocations();
    pageProducers.add(client.pages().map(serializedPage -> {
        Page page = pagesSerde.deserialize(serializedPage);
        operatorContext.recordNetworkInput(serializedPage.length(), page.getPositionCount());
        return page;
    }));
    return Optional::empty;
}

Example 2 with RemoteSplit

use of io.trino.split.RemoteSplit in project trino by trinodb.

the class PipelinedStageExecution method createExchangeSplit.

private static Split createExchangeSplit(RemoteTask sourceTask, RemoteTask destinationTask) {
    // Fetch the results from the buffer assigned to the task based on id
    URI exchangeLocation = sourceTask.getTaskStatus().getSelf();
    URI splitLocation = uriBuilderFrom(exchangeLocation).appendPath("results").appendPath(String.valueOf(destinationTask.getTaskId().getPartitionId())).build();
    return new Split(REMOTE_CONNECTOR_ID, new RemoteSplit(new DirectExchangeInput(sourceTask.getTaskId(), splitLocation.toString())), Lifespan.taskWide());
}