Package io.trino.execution.scheduler.policy

Class PhasedExecutionSchedule

java.lang.Object

io.trino.execution.scheduler.policy.PhasedExecutionSchedule

All Implemented Interfaces:

ExecutionSchedule

public class PhasedExecutionSchedule
extends Object
implements ExecutionSchedule

Schedules stages choosing to order to provide the best resource utilization. This means that stages which output won't be consumed (e.g. join probe side) will not be scheduled until dependent stages finish (e.g. join build source stages). Contrary to LegacyPhasedExecutionPolicy, PhasedExecutionSchedule will schedule multiple source stages in order to fully utilize IO.

Method Summary

Modifier and Type	Method	Description
static PhasedExecutionSchedule	forStages(Collection<StageExecution> stages, DynamicFilterService dynamicFilterService)
StagesScheduleResult	getStagesToSchedule()
boolean	isFinished()

Methods inherited from class java.lang.Object

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

Method Detail

forStages

public static PhasedExecutionSchedule forStages(Collection<StageExecution> stages,
                                                DynamicFilterService dynamicFilterService)

getStagesToSchedule

public StagesScheduleResult getStagesToSchedule()

Specified by:

getStagesToSchedule in interface ExecutionSchedule

isFinished

public boolean isFinished()

Specified by:

isFinished in interface ExecutionSchedule