org.apache.flink.runtime.taskexecutor.slot

Interface SlotAllocationSnapshotPersistenceService

All Known Implementing Classes:

FileSlotAllocationSnapshotPersistenceService, NoOpSlotAllocationSnapshotPersistenceService

public interface SlotAllocationSnapshotPersistenceService

Service for persisting SlotAllocationSnapshot.

Method Summary

Modifier and Type	Method and Description
void	deleteAllocationSnapshot(int slotIndex) Delete the slot allocation snapshot identified by the slot index.
Collection<SlotAllocationSnapshot>	loadAllocationSnapshots() Load all persisted slot allocation snapshots.
void	persistAllocationSnapshot(SlotAllocationSnapshot slotAllocationSnapshot) Persist the given slot allocation snapshot.

Method Detail

persistAllocationSnapshot

void persistAllocationSnapshot(SlotAllocationSnapshot slotAllocationSnapshot)
                        throws IOException

Persist the given slot allocation snapshot.

Parameters:

slotAllocationSnapshot - slot allocation snapshot to persist

Throws:

IOException - if the slot allocation snapshot cannot be persisted

deleteAllocationSnapshot

void deleteAllocationSnapshot(int slotIndex)

Delete the slot allocation snapshot identified by the slot index.

Parameters:

slotIndex - identifying the slot allocation snapshot to delete

loadAllocationSnapshots

Collection<SlotAllocationSnapshot> loadAllocationSnapshots()

Load all persisted slot allocation snapshots.

Returns:

loaded slot allocations snapshots