org.apache.flink.runtime.jobmanager.scheduler

Class SlotSharingGroupAssignment

java.lang.Object

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

All Implemented Interfaces:

Serializable

public class SlotSharingGroupAssignment
extends Object
implements Serializable

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
SlotSharingGroupAssignment()

Method Summary

Methods

Modifier and Type	Method and Description
SimpleSlot	addSharedSlotAndAllocateSubSlot(SharedSlot sharedSlot, Locality locality, AbstractID groupId, CoLocationConstraint constraint)
int	getNumberOfAvailableSlotsForJid(JobVertexID jid)
int	getNumberOfSlots()
SimpleSlot	getSlotForTask(ExecutionVertex vertex) Gets a slot suitable for the given task vertex.
SimpleSlot	getSlotForTask(ExecutionVertex vertex, CoLocationConstraint constraint)
void	releaseSharedSlot(SharedSlot sharedSlot) Releases the shared slot from the assignment group.
void	releaseSimpleSlot(SimpleSlot simpleSlot) Releases the simple slot from the assignment group.

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

addSharedSlotAndAllocateSubSlot

public SimpleSlot addSharedSlotAndAllocateSubSlot(SharedSlot sharedSlot,
                                         Locality locality,
                                         AbstractID groupId,
                                         CoLocationConstraint constraint)

getSlotForTask

public SimpleSlot 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 SimpleSlot getSlotForTask(ExecutionVertex vertex,
                        CoLocationConstraint constraint)

releaseSharedSlot

public void releaseSharedSlot(SharedSlot sharedSlot)

Releases the shared slot from the assignment group.

Parameters:

sharedSlot - The SharedSlot to be released

releaseSimpleSlot

public void releaseSimpleSlot(SimpleSlot simpleSlot)

Releases the simple slot from the assignment group.

Parameters:

simpleSlot - The SimpleSlot to be released

getNumberOfSlots

public int getNumberOfSlots()

getNumberOfAvailableSlotsForJid

public int getNumberOfAvailableSlotsForJid(JobVertexID jid)