org.apache.flink.runtime.resourcemanager.slotmanager

接口 SlotStatusSyncer

所有已知实现类:

DefaultSlotStatusSyncer

public interface SlotStatusSyncer

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

方法概要

限定符和类型	方法和说明
CompletableFuture<Void>	allocateSlot(InstanceID instanceId, org.apache.flink.api.common.JobID jobId, String targetAddress, ResourceProfile resourceProfile) Allocate a slot from the task manager.
void	close() Close this syncer, clear all the state.
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.

方法详细资料

initialize

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

Initialize this syncer.

参数:

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,
                                     org.apache.flink.api.common.JobID jobId,
                                     String targetAddress,
                                     ResourceProfile resourceProfile)

Allocate a slot from the task manager.

参数:

instanceId - of the task manager

jobId - of the slot

targetAddress - of the job

resourceProfile - of the slot

返回:

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

freeSlot

void freeSlot(AllocationID allocationId)

Free the given slot.

参数:

allocationId - of the given slot.

reportSlotStatus

boolean reportSlotStatus(InstanceID instanceId,
                         SlotReport slotReport)

Reconcile the slot status with the slot report.

参数:

instanceId - of the task manager

slotReport - reported

返回:

whether the previous allocations can be applied