org.apache.flink.runtime.scheduler

Class DefaultPreferredLocationsRetriever

java.lang.Object

org.apache.flink.runtime.scheduler.DefaultPreferredLocationsRetriever

All Implemented Interfaces:

PreferredLocationsRetriever

public class DefaultPreferredLocationsRetriever
extends Object
implements PreferredLocationsRetriever

Default implementation of PreferredLocationsRetriever. Locations based on state will be returned if exist. Otherwise locations based on inputs will be returned.

Method Summary

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

Methods inherited from class java.lang.Object

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

Method Detail

getPreferredLocations

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

Description copied from interface: PreferredLocationsRetriever

Returns preferred locations of an execution vertex.

Specified by:

getPreferredLocations in interface PreferredLocationsRetriever

Parameters:

executionVertexId - id of the execution vertex

producersToIgnore - producer vertices to ignore when calculating input locations

Returns:

future of preferred locations