org.apache.flink.runtime.jobmaster.slotpool

Class DeclarativeSlotPoolBridge

java.lang.Object

org.apache.flink.runtime.jobmaster.slotpool.DeclarativeSlotPoolService

org.apache.flink.runtime.jobmaster.slotpool.DeclarativeSlotPoolBridge

All Implemented Interfaces:

AutoCloseable, AllocatedSlotActions, SlotPool, SlotPoolService

public class DeclarativeSlotPoolBridge
extends DeclarativeSlotPoolService
implements SlotPool

SlotPool implementation which uses the DeclarativeSlotPool to allocate slots.

Field Summary

Fields inherited from class org.apache.flink.runtime.jobmaster.slotpool.DeclarativeSlotPoolService

log

Constructor Summary

Constructors

Constructor and Description
DeclarativeSlotPoolBridge(org.apache.flink.api.common.JobID jobId, DeclarativeSlotPoolFactory declarativeSlotPoolFactory, org.apache.flink.util.clock.Clock clock, org.apache.flink.api.common.time.Time rpcTimeout, org.apache.flink.api.common.time.Time idleSlotTimeout, org.apache.flink.api.common.time.Time batchSlotTimeout)

Method Summary

Modifier and Type	Method and Description
Optional<PhysicalSlot>	allocateAvailableSlot(SlotRequestId slotRequestId, AllocationID allocationID, ResourceProfile requirementProfile) Allocates the available slot with the given allocation id under the given request id for the given requirement profile.
<T> Optional<T>	castInto(Class<T> clazz) Tries to cast this slot pool service into the given clazz.
void	disableBatchSlotRequestTimeoutCheck() Disables batch slot request timeout check.
Collection<SlotInfo>	getAllocatedSlotsInformation() Returns a list of SlotInfo objects about all slots that are currently allocated in the slot pool.
Collection<SlotInfoWithUtilization>	getAvailableSlotsInformation() Returns a list of SlotInfoWithUtilization objects about all slots that are currently available in the slot pool.
int	getNumPendingRequests()
void	notifyNotEnoughResourcesAvailable(Collection<ResourceRequirement> acquiredResources) Notifies that not enough resources are available to fulfill the resource requirements.
protected void	onClose() This method is called when the slot pool service is closed.
protected void	onFailAllocation(ResourceCounter previouslyFulfilledRequirements) This method is called when an allocation fails.
protected void	onReleaseTaskManager(ResourceCounter previouslyFulfilledRequirement) This method is called when a TaskManager is released.
protected void	onStart(org.apache.flink.runtime.concurrent.ComponentMainThreadExecutor componentMainThreadExecutor) This method is called when the slot pool service is started.
void	releaseSlot(SlotRequestId slotRequestId, Throwable cause) Releases the slot with the given SlotRequestId.
CompletableFuture<PhysicalSlot>	requestNewAllocatedBatchSlot(SlotRequestId slotRequestId, ResourceProfile resourceProfile) Requests the allocation of a new batch slot from the resource manager.
CompletableFuture<PhysicalSlot>	requestNewAllocatedSlot(SlotRequestId slotRequestId, ResourceProfile resourceProfile, org.apache.flink.api.common.time.Time timeout) Request the allocation of a new slot from the resource manager.

Methods inherited from class org.apache.flink.runtime.jobmaster.slotpool.DeclarativeSlotPoolService

assertHasBeenStarted, close, connectToResourceManager, createAllocatedSlotReport, disconnectResourceManager, failAllocation, getDeclarativeSlotPool, getRelativeTimeMillis, getSlotServiceStatus, offerSlots, registerTaskManager, releaseTaskManager, start

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.SlotPool

close, connectToResourceManager, createAllocatedSlotReport, disconnectResourceManager, offerSlots, registerTaskManager, releaseTaskManager, start

Constructor Detail

DeclarativeSlotPoolBridge

public DeclarativeSlotPoolBridge(org.apache.flink.api.common.JobID jobId,
                                 DeclarativeSlotPoolFactory declarativeSlotPoolFactory,
                                 org.apache.flink.util.clock.Clock clock,
                                 org.apache.flink.api.common.time.Time rpcTimeout,
                                 org.apache.flink.api.common.time.Time idleSlotTimeout,
                                 org.apache.flink.api.common.time.Time batchSlotTimeout)

Method Detail

castInto

public <T> Optional<T> castInto(Class<T> clazz)

Description copied from interface: SlotPoolService

Tries to cast this slot pool service into the given clazz.

Specified by:

castInto in interface SlotPoolService

Overrides:

castInto in class DeclarativeSlotPoolService

Type Parameters:

T - type of clazz

Parameters:

clazz - to cast the slot pool service into

Returns:

Optional.of(T) the target type if it can be cast; otherwise Optional.empty()

onStart

protected void onStart(org.apache.flink.runtime.concurrent.ComponentMainThreadExecutor componentMainThreadExecutor)

Description copied from class: DeclarativeSlotPoolService

This method is called when the slot pool service is started. It can be overridden by subclasses.

Overrides:

onStart in class DeclarativeSlotPoolService

Parameters:

componentMainThreadExecutor - componentMainThreadExecutor used by this slot pool service

onClose

protected void onClose()

Description copied from class: DeclarativeSlotPoolService

This method is called when the slot pool service is closed. It can be overridden by subclasses.

Overrides:

onClose in class DeclarativeSlotPoolService

onReleaseTaskManager

protected void onReleaseTaskManager(ResourceCounter previouslyFulfilledRequirement)

Description copied from class: DeclarativeSlotPoolService

This method is called when a TaskManager is released. It can be overridden by subclasses.

Overrides:

onReleaseTaskManager in class DeclarativeSlotPoolService

Parameters:

previouslyFulfilledRequirement - previouslyFulfilledRequirement by the released TaskManager

allocateAvailableSlot

public Optional<PhysicalSlot> allocateAvailableSlot(@Nonnull
                                                    SlotRequestId slotRequestId,
                                                    @Nonnull
                                                    AllocationID allocationID,
                                                    @Nonnull
                                                    ResourceProfile requirementProfile)

Description copied from interface: SlotPool

Allocates the available slot with the given allocation id under the given request id for the given requirement profile. The slot must be able to fulfill the requirement profile, otherwise an IllegalStateException will be thrown.

Specified by:

allocateAvailableSlot in interface SlotPool

Parameters:

slotRequestId - identifying the requested slot

allocationID - the allocation id of the requested available slot

requirementProfile - resource profile of the requirement for which to allocate the slot

Returns:

the previously available slot with the given allocation id, if a slot with this allocation id exists

requestNewAllocatedSlot

@Nonnull
public CompletableFuture<PhysicalSlot> requestNewAllocatedSlot(@Nonnull
                                                                        SlotRequestId slotRequestId,
                                                                        @Nonnull
                                                                        ResourceProfile resourceProfile,
                                                                        @Nullable
                                                                        org.apache.flink.api.common.time.Time timeout)

Description copied from interface: SlotPool

Request the allocation of a new slot from the resource manager. This method will not return a slot from the already available slots from the pool, but instead will add a new slot to that pool that is immediately allocated and returned.

Specified by:

requestNewAllocatedSlot in interface SlotPool

Parameters:

slotRequestId - identifying the requested slot

resourceProfile - resource profile that specifies the resource requirements for the requested slot

timeout - timeout for the allocation procedure

Returns:

a newly allocated slot that was previously not available.

requestNewAllocatedBatchSlot

@Nonnull
public CompletableFuture<PhysicalSlot> requestNewAllocatedBatchSlot(@Nonnull
                                                                             SlotRequestId slotRequestId,
                                                                             @Nonnull
                                                                             ResourceProfile resourceProfile)

Description copied from interface: SlotPool

Requests the allocation of a new batch slot from the resource manager. Unlike the normal slot, a batch slot will only time out if the slot pool does not contain a suitable slot. Moreover, it won't react to failure signals from the resource manager.

Specified by:

requestNewAllocatedBatchSlot in interface SlotPool

Parameters:

slotRequestId - identifying the requested slot

resourceProfile - resource profile that specifies the resource requirements for the requested batch slot

Returns:

a future which is completed with newly allocated batch slot

onFailAllocation

protected void onFailAllocation(ResourceCounter previouslyFulfilledRequirements)

Description copied from class: DeclarativeSlotPoolService

This method is called when an allocation fails. It can be overridden by subclasses.

Overrides:

onFailAllocation in class DeclarativeSlotPoolService

Parameters:

previouslyFulfilledRequirements - previouslyFulfilledRequirements by the failed allocation

releaseSlot

public void releaseSlot(@Nonnull
                        SlotRequestId slotRequestId,
                        @Nullable
                        Throwable cause)

Description copied from interface: AllocatedSlotActions

Releases the slot with the given SlotRequestId. Additionally, one can provide a cause for the slot release.

Specified by:

releaseSlot in interface AllocatedSlotActions

Parameters:

slotRequestId - identifying the slot to release

cause - of the slot release, null if none

notifyNotEnoughResourcesAvailable

public void notifyNotEnoughResourcesAvailable(Collection<ResourceRequirement> acquiredResources)

Description copied from interface: SlotPoolService

Notifies that not enough resources are available to fulfill the resource requirements.

Specified by:

notifyNotEnoughResourcesAvailable in interface SlotPoolService

Parameters:

acquiredResources - the resources that have been acquired

getAllocatedSlotsInformation

public Collection<SlotInfo> getAllocatedSlotsInformation()

Description copied from interface: SlotPool

Returns a list of SlotInfo objects about all slots that are currently allocated in the slot pool.

Specified by:

getAllocatedSlotsInformation in interface SlotPool

Returns:

a list of SlotInfo objects about all slots that are currently allocated in the slot pool.

getAvailableSlotsInformation

@Nonnull
public Collection<SlotInfoWithUtilization> getAvailableSlotsInformation()

Description copied from interface: SlotPool

Returns a list of SlotInfoWithUtilization objects about all slots that are currently available in the slot pool.

Specified by:

getAvailableSlotsInformation in interface SlotPool

Returns:

a list of SlotInfoWithUtilization objects about all slots that are currently available in the slot pool.

disableBatchSlotRequestTimeoutCheck

public void disableBatchSlotRequestTimeoutCheck()

Description copied from interface: SlotPool

Disables batch slot request timeout check. Invoked when someone else wants to take over the timeout check responsibility.

Specified by:

disableBatchSlotRequestTimeoutCheck in interface SlotPool

getNumPendingRequests

@VisibleForTesting
public int getNumPendingRequests()