org.apache.flink.runtime.scheduler

Interface PreferredLocationsRetriever

All Known Implementing Classes:

DefaultPreferredLocationsRetriever

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface PreferredLocationsRetriever

Component to retrieve the preferred locations of an execution vertex.

Method Summary

Modifier and Type	Method and Description
CompletableFuture<Collection<TaskManagerLocation>>	getPreferredLocations(ExecutionVertexID executionVertexId, Set<ExecutionVertexID> producersToIgnore) Returns preferred locations of an execution vertex.

Method Detail

getPreferredLocations

CompletableFuture<Collection<TaskManagerLocation>> getPreferredLocations(ExecutionVertexID executionVertexId,
                                                                         Set<ExecutionVertexID> producersToIgnore)

Returns preferred locations of an execution vertex.

Parameters:

executionVertexId - id of the execution vertex

producersToIgnore - producer vertices to ignore when calculating input locations

Returns:

future of preferred locations