Package 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	Description
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	freeInactiveSlots(org.apache.flink.api.common.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,
                                     org.apache.flink.api.common.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(org.apache.flink.api.common.JobID jobId)

Frees all currently inactive slot allocated for the given job.

Parameters:

jobId - of the job