org.apache.flink.runtime.resourcemanager.slotmanager

Interface SlotStatusSyncer

All Known Implementing Classes:

DefaultSlotStatusSyncer

public interface SlotStatusSyncer

Syncer for slot status. Take the responsibility of allocating/freeing slot and reconciling the slot status with task managers.

Method Summary

Modifier and Type	Method and Description
CompletableFuture<Void>	allocateSlot(InstanceID instanceId, JobID jobId, String targetAddress, ResourceProfile resourceProfile) Allocate a slot from the task manager.
void	close() Close this syncer, clear all the state.
void	freeInactiveSlots(JobID jobId) Frees all currently inactive slot allocated for the given job.
void	freeSlot(AllocationID allocationId) Free the given slot.
void	initialize(org.apache.flink.runtime.resourcemanager.slotmanager.TaskManagerTracker taskManagerTracker, ResourceTracker resourceTracker, ResourceManagerId resourceManagerId, Executor mainThreadExecutor) Initialize this syncer.
boolean	reportSlotStatus(InstanceID instanceId, SlotReport slotReport) Reconcile the slot status with the slot report.

Method Detail

initialize

void initialize(org.apache.flink.runtime.resourcemanager.slotmanager.TaskManagerTracker taskManagerTracker,
                ResourceTracker resourceTracker,
                ResourceManagerId resourceManagerId,
                Executor mainThreadExecutor)

Initialize this syncer.

Parameters:

taskManagerTracker - track the state of task managers and slots

resourceTracker - track the state of resource declaration

resourceManagerId - for slot allocation

mainThreadExecutor - to handle the request future

close

void close()

Close this syncer, clear all the state.

allocateSlot

CompletableFuture<Void> allocateSlot(InstanceID instanceId,
                                     JobID jobId,
                                     String targetAddress,
                                     ResourceProfile resourceProfile)

Allocate a slot from the task manager.

Parameters:

instanceId - of the task manager

jobId - of the slot

targetAddress - of the job

resourceProfile - of the slot

Returns:

a CompletableFuture of the slot allocation, which will be completed exceptionally if the allocation fails

freeSlot

void freeSlot(AllocationID allocationId)

Free the given slot.

Parameters:

allocationId - of the given slot.

reportSlotStatus

boolean reportSlotStatus(InstanceID instanceId,
                         SlotReport slotReport)

Reconcile the slot status with the slot report.

Parameters:

instanceId - of the task manager

slotReport - reported

Returns:

whether the previous allocations can be applied

freeInactiveSlots

void freeInactiveSlots(JobID jobId)

Frees all currently inactive slot allocated for the given job.

Parameters:

jobId - of the job