org.apache.flink.runtime.scheduler.strategy

Class PartialFinishedInputConsumableDecider

java.lang.Object

org.apache.flink.runtime.scheduler.strategy.PartialFinishedInputConsumableDecider

All Implemented Interfaces:

InputConsumableDecider

public class PartialFinishedInputConsumableDecider
extends Object
implements InputConsumableDecider

PartialFinishedInputConsumableDecider is a special InputConsumableDecider. The input is considered to be consumable:

• for hybrid input: when partial producer partitions are finished.
• for blocking input: when all producer partitions are finished.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	PartialFinishedInputConsumableDecider.Factory Factory for PartialFinishedInputConsumableDecider.

Field Summary

Fields

Modifier and Type	Field and Description
static int	NUM_FINISHED_PARTITIONS_AS_CONSUMABLE

Constructor Summary

Constructors

Constructor and Description
PartialFinishedInputConsumableDecider()

Method Summary

Modifier and Type	Method and Description
boolean	isConsumableBasedOnFinishedProducers(ConsumedPartitionGroup consumedPartitionGroup) Determining whether the consumed partition group is consumable based on finished producers.
boolean	isInputConsumable(SchedulingExecutionVertex executionVertex, Set<ExecutionVertexID> verticesToDeploy, Map<ConsumedPartitionGroup,Boolean> consumableStatusCache) Determining whether the input of an execution vertex is consumable.

Methods inherited from class java.lang.Object

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

Field Detail

NUM_FINISHED_PARTITIONS_AS_CONSUMABLE

public static final int NUM_FINISHED_PARTITIONS_AS_CONSUMABLE

See Also:

Constant Field Values

Constructor Detail

PartialFinishedInputConsumableDecider

public PartialFinishedInputConsumableDecider()

Method Detail

isInputConsumable

public boolean isInputConsumable(SchedulingExecutionVertex executionVertex,
                                 Set<ExecutionVertexID> verticesToDeploy,
                                 Map<ConsumedPartitionGroup,Boolean> consumableStatusCache)

Description copied from interface: InputConsumableDecider

Determining whether the input of an execution vertex is consumable.

Specified by:

isInputConsumable in interface InputConsumableDecider

Parameters:

executionVertex - to be determined whether it's input is consumable.

verticesToDeploy - vertices that are not yet scheduled but already decided to be scheduled.

consumableStatusCache - a cache for ConsumedPartitionGroup consumable status. This is to avoid repetitive computation.

isConsumableBasedOnFinishedProducers

public boolean isConsumableBasedOnFinishedProducers(ConsumedPartitionGroup consumedPartitionGroup)

Description copied from interface: InputConsumableDecider

Determining whether the consumed partition group is consumable based on finished producers.

Specified by:

isConsumableBasedOnFinishedProducers in interface InputConsumableDecider

Parameters:

consumedPartitionGroup - to be determined whether it is consumable.