use of com.facebook.presto.execution.RemoteTaskFactory in project presto by prestodb.
the class LegacySqlQueryScheduler method updateStageExecutions.
/**
* Utility function that rebuild a StreamingPlanSection, re-create stageExecutionAndScheduler for each of its stage, and finally update the stageExecutions map.
*/
private void updateStageExecutions(StreamingPlanSection section, Map<PlanFragment, PlanFragment> oldToNewFragment) {
StreamingPlanSection newSection = new StreamingPlanSection(rewriteStreamingSubPlan(section.getPlan(), oldToNewFragment), section.getChildren());
PlanFragment sectionRootFragment = newSection.getPlan().getFragment();
Optional<int[]> bucketToPartition;
OutputBuffers outputBuffers;
ExchangeLocationsConsumer locationsConsumer;
if (isRootFragment(sectionRootFragment)) {
bucketToPartition = Optional.of(new int[1]);
outputBuffers = createInitialEmptyOutputBuffers(sectionRootFragment.getPartitioningScheme().getPartitioning().getHandle()).withBuffer(new OutputBufferId(0), BROADCAST_PARTITION_ID).withNoMoreBufferIds();
OutputBufferId rootBufferId = getOnlyElement(outputBuffers.getBuffers().keySet());
locationsConsumer = (fragmentId, tasks, noMoreExchangeLocations) -> updateQueryOutputLocations(queryStateMachine, rootBufferId, tasks, noMoreExchangeLocations);
} else {
bucketToPartition = Optional.empty();
outputBuffers = createDiscardingOutputBuffers();
locationsConsumer = (fragmentId, tasks, noMoreExchangeLocations) -> {
};
}
SectionExecution sectionExecution = sectionExecutionFactory.createSectionExecutions(session, newSection, locationsConsumer, bucketToPartition, outputBuffers, summarizeTaskInfo, remoteTaskFactory, splitSourceFactory, 0);
addStateChangeListeners(sectionExecution);
Map<StageId, StageExecutionAndScheduler> updatedStageExecutions = sectionExecution.getSectionStages().stream().collect(toImmutableMap(execution -> execution.getStageExecution().getStageExecutionId().getStageId(), identity()));
synchronized (this) {
stageExecutions.putAll(updatedStageExecutions);
}
}
use of com.facebook.presto.execution.RemoteTaskFactory in project presto by prestodb.
the class SectionExecutionFactory method createSectionExecutions.
/**
* returns a List of SectionExecutions in a postorder representation of the tree
*/
public SectionExecution createSectionExecutions(Session session, StreamingPlanSection section, ExchangeLocationsConsumer locationsConsumer, Optional<int[]> bucketToPartition, OutputBuffers outputBuffers, boolean summarizeTaskInfo, RemoteTaskFactory remoteTaskFactory, SplitSourceFactory splitSourceFactory, int attemptId) {
// Only fetch a distribution once per section to ensure all stages see the same machine assignments
Map<PartitioningHandle, NodePartitionMap> partitioningCache = new HashMap<>();
TableWriteInfo tableWriteInfo = createTableWriteInfo(section.getPlan(), metadata, session);
List<StageExecutionAndScheduler> sectionStages = createStreamingLinkedStageExecutions(session, locationsConsumer, section.getPlan().withBucketToPartition(bucketToPartition), partitioningHandle -> partitioningCache.computeIfAbsent(partitioningHandle, handle -> nodePartitioningManager.getNodePartitioningMap(session, handle)), tableWriteInfo, Optional.empty(), summarizeTaskInfo, remoteTaskFactory, splitSourceFactory, attemptId);
StageExecutionAndScheduler rootStage = getLast(sectionStages);
rootStage.getStageExecution().setOutputBuffers(outputBuffers);
return new SectionExecution(rootStage, sectionStages);
}
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