public List<Driver> createDrivers(
@Language("SQL") String sql, OutputFactory outputFactory, TaskContext taskContext) {
Statement statement = SqlParser.createStatement(sql);
if (printPlan) {
assertFormattedSql(statement);
}
PlanNodeIdAllocator idAllocator = new PlanNodeIdAllocator();
FeaturesConfig featuresConfig = new FeaturesConfig().setExperimentalSyntaxEnabled(true);
PlanOptimizersFactory planOptimizersFactory =
new PlanOptimizersFactory(metadata, splitManager, indexManager, featuresConfig);
QueryExplainer queryExplainer =
new QueryExplainer(
session,
planOptimizersFactory.get(),
metadata,
featuresConfig.isExperimentalSyntaxEnabled());
Analyzer analyzer =
new Analyzer(
session,
metadata,
Optional.of(queryExplainer),
featuresConfig.isExperimentalSyntaxEnabled());
Analysis analysis = analyzer.analyze(statement);
Plan plan =
new LogicalPlanner(session, planOptimizersFactory.get(), idAllocator, metadata)
.plan(analysis);
if (printPlan) {
System.out.println(PlanPrinter.textLogicalPlan(plan.getRoot(), plan.getTypes(), metadata));
}
SubPlan subplan =
new DistributedLogicalPlanner(session, metadata, idAllocator).createSubPlans(plan, true);
assertTrue(subplan.getChildren().isEmpty(), "Expected subplan to have no children");
LocalExecutionPlanner executionPlanner =
new LocalExecutionPlanner(
new NodeInfo(new NodeConfig().setEnvironment("test").setNodeId("test-node")),
metadata,
dataStreamProvider,
indexManager,
storageManager,
recordSinkManager,
null,
compiler);
// plan query
LocalExecutionPlan localExecutionPlan =
executionPlanner.plan(
session, subplan.getFragment().getRoot(), plan.getTypes(), outputFactory);
// generate sources
List<TaskSource> sources = new ArrayList<>();
long sequenceId = 0;
for (PlanNode sourceNode : subplan.getFragment().getSources()) {
if (sourceNode instanceof ValuesNode) {
continue;
}
TableScanNode tableScan = (TableScanNode) sourceNode;
SplitSource splitSource =
splitManager.getPartitionSplits(tableScan.getTable(), getPartitions(tableScan));
ImmutableSet.Builder<ScheduledSplit> scheduledSplits = ImmutableSet.builder();
while (!splitSource.isFinished()) {
try {
for (Split split : splitSource.getNextBatch(1000)) {
scheduledSplits.add(new ScheduledSplit(sequenceId++, split));
}
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
throw Throwables.propagate(e);
}
}
sources.add(new TaskSource(tableScan.getId(), scheduledSplits.build(), true));
}
// create drivers
List<Driver> drivers = new ArrayList<>();
Map<PlanNodeId, Driver> driversBySource = new HashMap<>();
for (DriverFactory driverFactory : localExecutionPlan.getDriverFactories()) {
DriverContext driverContext =
taskContext
.addPipelineContext(driverFactory.isInputDriver(), driverFactory.isOutputDriver())
.addDriverContext();
Driver driver = driverFactory.createDriver(driverContext);
drivers.add(driver);
for (PlanNodeId sourceId : driver.getSourceIds()) {
driversBySource.put(sourceId, driver);
}
driverFactory.close();
}
// add sources to the drivers
for (TaskSource source : sources) {
for (Driver driver : driversBySource.values()) {
driver.updateSource(source);
}
}
return ImmutableList.copyOf(drivers);
}
private SqlTaskExecution(
TaskStateMachine taskStateMachine,
TaskContext taskContext,
SharedBuffer sharedBuffer,
PlanFragment fragment,
LocalExecutionPlanner planner,
TaskExecutor taskExecutor,
QueryMonitor queryMonitor,
Executor notificationExecutor) {
this.taskStateMachine = checkNotNull(taskStateMachine, "taskStateMachine is null");
this.taskId = taskStateMachine.getTaskId();
this.taskContext = checkNotNull(taskContext, "taskContext is null");
this.sharedBuffer = checkNotNull(sharedBuffer, "sharedBuffer is null");
this.taskExecutor = checkNotNull(taskExecutor, "driverExecutor is null");
this.notificationExecutor = checkNotNull(notificationExecutor, "notificationExecutor is null");
this.queryMonitor = checkNotNull(queryMonitor, "queryMonitor is null");
try (SetThreadName ignored = new SetThreadName("Task-%s", taskId)) {
List<DriverFactory> driverFactories;
try {
OutputFactory outputOperatorFactory;
if (fragment.getOutputPartitioning() == OutputPartitioning.NONE) {
outputOperatorFactory = new TaskOutputFactory(sharedBuffer);
} else if (fragment.getOutputPartitioning() == OutputPartitioning.HASH) {
outputOperatorFactory = new PartitionedOutputFactory(sharedBuffer);
} else {
throw new PrestoException(
NOT_SUPPORTED,
format("OutputPartitioning %s is not supported", fragment.getOutputPartitioning()));
}
LocalExecutionPlan localExecutionPlan =
planner.plan(
taskContext.getSession(),
fragment.getRoot(),
fragment.getOutputLayout(),
fragment.getSymbols(),
fragment.getDistribution(),
outputOperatorFactory);
driverFactories = localExecutionPlan.getDriverFactories();
} catch (Throwable e) {
// planning failed
taskStateMachine.failed(e);
throw Throwables.propagate(e);
}
// index driver factories
DriverSplitRunnerFactory partitionedDriverFactory = null;
ImmutableList.Builder<DriverSplitRunnerFactory> unpartitionedDriverFactories =
ImmutableList.builder();
for (DriverFactory driverFactory : driverFactories) {
if (driverFactory.getSourceIds().contains(fragment.getPartitionedSource())) {
checkState(
partitionedDriverFactory == null, "multiple partitioned sources are not supported");
partitionedDriverFactory = new DriverSplitRunnerFactory(driverFactory);
} else {
unpartitionedDriverFactories.add(new DriverSplitRunnerFactory(driverFactory));
}
}
this.unpartitionedDriverFactories = unpartitionedDriverFactories.build();
if (fragment.getDistribution() == PlanDistribution.SOURCE) {
checkArgument(
partitionedDriverFactory != null,
"Fragment is partitioned, but no partitioned driver found");
}
this.partitionedSourceId = fragment.getPartitionedSource();
this.partitionedDriverFactory = partitionedDriverFactory;
// don't register the task if it is already completed (most likely failed during planning
// above)
if (!taskStateMachine.getState().isDone()) {
taskHandle = taskExecutor.addTask(taskId);
taskStateMachine.addStateChangeListener(
new RemoveTaskHandleWhenDone(taskExecutor, taskHandle));
} else {
taskHandle = null;
}
sharedBuffer.addStateChangeListener(
new CheckTaskCompletionOnBufferFinish(SqlTaskExecution.this));
}
}
private SqlTaskExecution(
Session session,
TaskId taskId,
URI location,
PlanFragment fragment,
OutputBuffers outputBuffers,
LocalExecutionPlanner planner,
DataSize maxBufferSize,
TaskExecutor taskExecutor,
DataSize maxTaskMemoryUsage,
DataSize operatorPreAllocatedMemory,
QueryMonitor queryMonitor,
Executor notificationExecutor,
boolean cpuTimerEnabled) {
try (SetThreadName setThreadName = new SetThreadName("Task-%s", taskId)) {
this.taskId = checkNotNull(taskId, "taskId is null");
this.location = checkNotNull(location, "location is null");
this.taskExecutor = checkNotNull(taskExecutor, "driverExecutor is null");
this.notificationExecutor =
checkNotNull(notificationExecutor, "notificationExecutor is null");
this.taskStateMachine = new TaskStateMachine(taskId, notificationExecutor);
taskStateMachine.addStateChangeListener(
new StateChangeListener<TaskState>() {
@Override
public void stateChanged(TaskState taskState) {
if (taskState.isDone()) {
SqlTaskExecution.this.taskExecutor.removeTask(taskHandle);
// make sure buffers are cleaned up
if (taskState != TaskState.FAILED) {
// don't close buffers for a failed query
// closed buffers signal to upstream tasks that everything finished cleanly
sharedBuffer.destroy();
}
}
}
});
this.taskContext =
new TaskContext(
taskStateMachine,
notificationExecutor,
session,
checkNotNull(maxTaskMemoryUsage, "maxTaskMemoryUsage is null"),
checkNotNull(operatorPreAllocatedMemory, "operatorPreAllocatedMemory is null"),
cpuTimerEnabled);
this.sharedBuffer =
new SharedBuffer(
taskId,
notificationExecutor,
checkNotNull(maxBufferSize, "maxBufferSize is null"),
outputBuffers);
sharedBuffer.addStateChangeListener(
new StateChangeListener<QueueState>() {
@Override
public void stateChanged(QueueState taskState) {
if (taskState == QueueState.FINISHED) {
checkTaskCompletion();
}
}
});
this.queryMonitor = checkNotNull(queryMonitor, "queryMonitor is null");
taskHandle = taskExecutor.addTask(taskId);
LocalExecutionPlan localExecutionPlan =
planner.plan(
session,
fragment.getRoot(),
fragment.getSymbols(),
new TaskOutputFactory(sharedBuffer));
List<DriverFactory> driverFactories = localExecutionPlan.getDriverFactories();
// index driver factories
DriverSplitRunnerFactory partitionedDriverFactory = null;
ImmutableList.Builder<DriverSplitRunnerFactory> unpartitionedDriverFactories =
ImmutableList.builder();
for (DriverFactory driverFactory : driverFactories) {
if (driverFactory.getSourceIds().contains(fragment.getPartitionedSource())) {
checkState(
partitionedDriverFactory == null, "multiple partitioned sources are not supported");
partitionedDriverFactory = new DriverSplitRunnerFactory(driverFactory);
} else {
unpartitionedDriverFactories.add(new DriverSplitRunnerFactory(driverFactory));
}
}
this.unpartitionedDriverFactories = unpartitionedDriverFactories.build();
if (fragment.getDistribution() == PlanDistribution.SOURCE) {
checkArgument(
partitionedDriverFactory != null,
"Fragment is partitioned, but no partitioned driver found");
}
this.partitionedSourceId = fragment.getPartitionedSource();
this.partitionedDriverFactory = partitionedDriverFactory;
}
}
public List<Driver> createDrivers(
Session session,
@Language("SQL") String sql,
OutputFactory outputFactory,
TaskContext taskContext) {
Statement statement = sqlParser.createStatement(sql);
assertFormattedSql(sqlParser, statement);
PlanNodeIdAllocator idAllocator = new PlanNodeIdAllocator();
FeaturesConfig featuresConfig =
new FeaturesConfig()
.setExperimentalSyntaxEnabled(true)
.setDistributedIndexJoinsEnabled(false)
.setOptimizeHashGeneration(true);
PlanOptimizersFactory planOptimizersFactory =
new PlanOptimizersFactory(metadata, sqlParser, indexManager, featuresConfig, true);
QueryExplainer queryExplainer =
new QueryExplainer(
planOptimizersFactory.get(),
metadata,
accessControl,
sqlParser,
dataDefinitionTask,
featuresConfig.isExperimentalSyntaxEnabled());
Analyzer analyzer =
new Analyzer(
session,
metadata,
sqlParser,
accessControl,
Optional.of(queryExplainer),
featuresConfig.isExperimentalSyntaxEnabled());
Analysis analysis = analyzer.analyze(statement);
Plan plan =
new LogicalPlanner(session, planOptimizersFactory.get(), idAllocator, metadata)
.plan(analysis);
if (printPlan) {
System.out.println(
PlanPrinter.textLogicalPlan(plan.getRoot(), plan.getTypes(), metadata, session));
}
SubPlan subplan = new PlanFragmenter().createSubPlans(plan);
if (!subplan.getChildren().isEmpty()) {
throw new AssertionError("Expected subplan to have no children");
}
LocalExecutionPlanner executionPlanner =
new LocalExecutionPlanner(
metadata,
sqlParser,
pageSourceManager,
indexManager,
pageSinkManager,
null,
compiler,
new IndexJoinLookupStats(),
new CompilerConfig()
.setInterpreterEnabled(false), // make sure tests fail if compiler breaks
new TaskManagerConfig().setTaskDefaultConcurrency(4));
// plan query
LocalExecutionPlan localExecutionPlan =
executionPlanner.plan(
session,
subplan.getFragment().getRoot(),
subplan.getFragment().getOutputLayout(),
plan.getTypes(),
subplan.getFragment().getDistribution(),
outputFactory);
// generate sources
List<TaskSource> sources = new ArrayList<>();
long sequenceId = 0;
for (TableScanNode tableScan : findTableScanNodes(subplan.getFragment().getRoot())) {
TableLayoutHandle layout = tableScan.getLayout().get();
SplitSource splitSource = splitManager.getSplits(session, layout);
ImmutableSet.Builder<ScheduledSplit> scheduledSplits = ImmutableSet.builder();
while (!splitSource.isFinished()) {
for (Split split : getFutureValue(splitSource.getNextBatch(1000))) {
scheduledSplits.add(new ScheduledSplit(sequenceId++, split));
}
}
sources.add(new TaskSource(tableScan.getId(), scheduledSplits.build(), true));
}
// create drivers
List<Driver> drivers = new ArrayList<>();
Map<PlanNodeId, Driver> driversBySource = new HashMap<>();
for (DriverFactory driverFactory : localExecutionPlan.getDriverFactories()) {
for (int i = 0; i < driverFactory.getDriverInstances(); i++) {
DriverContext driverContext =
taskContext
.addPipelineContext(driverFactory.isInputDriver(), driverFactory.isOutputDriver())
.addDriverContext();
Driver driver = driverFactory.createDriver(driverContext);
drivers.add(driver);
for (PlanNodeId sourceId : driver.getSourceIds()) {
driversBySource.put(sourceId, driver);
}
}
driverFactory.close();
}
// add sources to the drivers
for (TaskSource source : sources) {
for (Driver driver : driversBySource.values()) {
driver.updateSource(source);
}
}
return ImmutableList.copyOf(drivers);
}