io.prestosql.execution.scheduler

Class FixedSourcePartitionedScheduler

java.lang.Object

io.prestosql.execution.scheduler.FixedSourcePartitionedScheduler

All Implemented Interfaces:

StageScheduler, Closeable, AutoCloseable

public class FixedSourcePartitionedScheduler
extends Object
implements StageScheduler

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	FixedSourcePartitionedScheduler.BucketedSplitPlacementPolicy

Constructor Summary

Constructors

Constructor and Description
FixedSourcePartitionedScheduler(SqlStageExecution stage, Map<PlanNodeId,SplitSource> splitSources, StageExecutionDescriptor stageExecutionDescriptor, List<PlanNodeId> schedulingOrder, List<InternalNode> nodes, BucketNodeMap bucketNodeMap, int splitBatchSize, OptionalInt concurrentLifespansPerTask, NodeSelector nodeSelector, List<ConnectorPartitionHandle> partitionHandles)

Method Summary

Modifier and Type	Method and Description
void	close()
ScheduleResult	schedule() Schedules as much work as possible without blocking.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FixedSourcePartitionedScheduler

public FixedSourcePartitionedScheduler(SqlStageExecution stage,
                                       Map<PlanNodeId,SplitSource> splitSources,
                                       StageExecutionDescriptor stageExecutionDescriptor,
                                       List<PlanNodeId> schedulingOrder,
                                       List<InternalNode> nodes,
                                       BucketNodeMap bucketNodeMap,
                                       int splitBatchSize,
                                       OptionalInt concurrentLifespansPerTask,
                                       NodeSelector nodeSelector,
                                       List<ConnectorPartitionHandle> partitionHandles)

Method Detail

schedule

public ScheduleResult schedule()

Description copied from interface: StageScheduler

Schedules as much work as possible without blocking. The schedule results is a hint to the query scheduler if and when the stage scheduler should be invoked again. It is important to note that this is only a hint and the query scheduler may call the schedule method at any time.

Specified by:

schedule in interface StageScheduler

close

public void close()

Specified by:

close in interface StageScheduler

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable