org.apache.flink.runtime.jobmanager.scheduler

Class SlotSharingGroupAssignment

java.lang.Object

org.apache.flink.runtime.jobmanager.scheduler.SlotSharingGroupAssignment

public class SlotSharingGroupAssignment
extends Object

Constructor Summary

Constructors

Constructor and Description
SlotSharingGroupAssignment()

Method Summary

Modifier and Type	Method and Description
SubSlot	addNewSlotWithTask(AllocatedSlot slot, ExecutionVertex vertex)
SubSlot	addNewSlotWithTask(AllocatedSlot slot, ExecutionVertex vertex, CoLocationConstraint constraint)
int	getNumberOfAvailableSlotsForJid(JobVertexID jid)
int	getNumberOfSlots()
SubSlot	getSlotForTask(ExecutionVertex vertex) Gets a slot suitable for the given task vertex.
SubSlot	getSlotForTask(ExecutionVertex vertex, CoLocationConstraint constraint)

Methods inherited from class java.lang.Object

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

Constructor Detail

SlotSharingGroupAssignment

public SlotSharingGroupAssignment()

Method Detail

addNewSlotWithTask

public SubSlot addNewSlotWithTask(AllocatedSlot slot,
                                  ExecutionVertex vertex)

addNewSlotWithTask

public SubSlot addNewSlotWithTask(AllocatedSlot slot,
                                  ExecutionVertex vertex,
                                  CoLocationConstraint constraint)

getSlotForTask

public SubSlot getSlotForTask(ExecutionVertex vertex)

Gets a slot suitable for the given task vertex. This method will prefer slots that are local (with respect to ExecutionVertex.getPreferredLocations()), but will return non local slots if no local slot is available. The method returns null, when no slot is available for the given JobVertexID at all.

Parameters:

vertex -

Returns:

A task vertex for a task with the given JobVertexID, or null, if none is available.

getSlotForTask

public SubSlot getSlotForTask(ExecutionVertex vertex,
                              CoLocationConstraint constraint)

getNumberOfSlots

public int getNumberOfSlots()

getNumberOfAvailableSlotsForJid

public int getNumberOfAvailableSlotsForJid(JobVertexID jid)