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 Details

    • 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