io.prestosql.execution.scheduler

Class ScaledWriterScheduler

java.lang.Object

io.prestosql.execution.scheduler.ScaledWriterScheduler

All Implemented Interfaces:

StageScheduler, Closeable, AutoCloseable

public class ScaledWriterScheduler
extends Object
implements StageScheduler

Constructor Summary

Constructors

Constructor and Description
ScaledWriterScheduler(SqlStageExecution stage, Supplier<Collection<TaskStatus>> sourceTasksProvider, Supplier<Collection<TaskStatus>> writerTasksProvider, NodeSelector nodeSelector, ScheduledExecutorService executor, io.airlift.units.DataSize writerMinSize)

Method Summary

Modifier and Type	Method and Description
void	finish()
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

Methods inherited from interface io.prestosql.execution.scheduler.StageScheduler

close

Constructor Detail

ScaledWriterScheduler

public ScaledWriterScheduler(SqlStageExecution stage,
                             Supplier<Collection<TaskStatus>> sourceTasksProvider,
                             Supplier<Collection<TaskStatus>> writerTasksProvider,
                             NodeSelector nodeSelector,
                             ScheduledExecutorService executor,
                             io.airlift.units.DataSize writerMinSize)

Method Detail

finish

public void finish()

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