org.apache.flink.runtime.jobmaster.slotpool

Class SlotPool.ProviderAndOwner

java.lang.Object

org.apache.flink.runtime.jobmaster.slotpool.SlotPool.ProviderAndOwner

All Implemented Interfaces:

SlotOwner, SlotProvider

Enclosing class:

SlotPool

public static class SlotPool.ProviderAndOwner
extends Object
implements SlotOwner, SlotProvider

An implementation of the SlotOwner and SlotProvider interfaces that delegates methods as RPC calls to the SlotPool's RPC gateway.

Method Summary

Modifier and Type	Method and Description
CompletableFuture<LogicalSlot>	allocateSlot(SlotRequestId slotRequestId, ScheduledUnit task, boolean allowQueued, SlotProfile slotProfile, org.apache.flink.api.common.time.Time timeout) Allocating slot with specific requirement.
CompletableFuture<Acknowledge>	cancelSlotRequest(SlotRequestId slotRequestId, SlotSharingGroupId slotSharingGroupId, Throwable cause) Cancels the slot request with the given SlotRequestId and SlotSharingGroupId.
boolean	requiresPreviousAllocationsForScheduling()
CompletableFuture<Boolean>	returnAllocatedSlot(LogicalSlot slot) Return the given slot to the slot owner.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.runtime.jobmaster.slotpool.SlotProvider

allocateSlot

Method Detail

requiresPreviousAllocationsForScheduling

public boolean requiresPreviousAllocationsForScheduling()

returnAllocatedSlot

public CompletableFuture<Boolean> returnAllocatedSlot(LogicalSlot slot)

Description copied from interface: SlotOwner

Return the given slot to the slot owner.

Specified by:

returnAllocatedSlot in interface SlotOwner

Parameters:

slot - to return

Returns:

Future which is completed with true if the slot could be returned, otherwise with false

allocateSlot

public CompletableFuture<LogicalSlot> allocateSlot(SlotRequestId slotRequestId,
                                                   ScheduledUnit task,
                                                   boolean allowQueued,
                                                   SlotProfile slotProfile,
                                                   org.apache.flink.api.common.time.Time timeout)

Description copied from interface: SlotProvider

Allocating slot with specific requirement.

Specified by:

allocateSlot in interface SlotProvider

Parameters:

slotRequestId - identifying the slot request

task - The task to allocate the slot for

allowQueued - Whether allow the task be queued if we do not have enough resource

slotProfile - profile of the requested slot

timeout - after which the allocation fails with a timeout exception

Returns:

The future of the allocation

cancelSlotRequest

public CompletableFuture<Acknowledge> cancelSlotRequest(SlotRequestId slotRequestId,
                                                        @Nullable
                                                        SlotSharingGroupId slotSharingGroupId,
                                                        Throwable cause)

Description copied from interface: SlotProvider

Cancels the slot request with the given SlotRequestId and SlotSharingGroupId.

Specified by:

cancelSlotRequest in interface SlotProvider

Parameters:

slotRequestId - identifying the slot request to cancel

slotSharingGroupId - identifying the slot request to cancel

cause - of the cancellation

Returns:

Future which is completed once the slot request has been cancelled