Package org.apache.flink.runtime.scheduler.strategy

Interface InputConsumableDecider

All Known Implementing Classes:

AllFinishedInputConsumableDecider, DefaultInputConsumableDecider, PartialFinishedInputConsumableDecider

public interface InputConsumableDecider

InputConsumableDecider is responsible for determining whether the input of an executionVertex or a consumed partition group is consumable.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	InputConsumableDecider.Factory	Factory for InputConsumableDecider.

Method Summary

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

Method Detail

isInputConsumable

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

Determining whether the input of an execution vertex is consumable.

Parameters:

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

verticesToSchedule - 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

boolean isConsumableBasedOnFinishedProducers(ConsumedPartitionGroup consumedPartitionGroup)

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

Parameters:

consumedPartitionGroup - to be determined whether it is consumable.