Package org.apache.flink.runtime.jobmaster.slotpool

Class DefaultAllocatedSlotPool

java.lang.Object

org.apache.flink.runtime.jobmaster.slotpool.DefaultAllocatedSlotPool

All Implemented Interfaces:

AllocatedSlotPool

public class DefaultAllocatedSlotPool
extends Object
implements AllocatedSlotPool

Default AllocatedSlotPool implementation.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.flink.runtime.jobmaster.slotpool.AllocatedSlotPool

AllocatedSlotPool.AllocatedSlotsAndReservationStatus, AllocatedSlotPool.FreeSlotInfo

Constructor Summary

Constructors

Constructor	Description
DefaultAllocatedSlotPool()

Method Summary

Modifier and Type	Method	Description
void	addSlots(Collection<org.apache.flink.runtime.jobmaster.slotpool.AllocatedSlot> slots, long currentTime)	Adds the given collection of slots to the slot pool.
boolean	containsFreeSlot(AllocationID allocationId)	Checks whether the slot pool contains a slot with the given AllocationID and if it is free.
boolean	containsSlot(AllocationID allocationId)	Checks whether the slot pool contains a slot with the given allocationId.
boolean	containsSlots(ResourceID owner)	Checks whether the slot pool contains at least one slot belonging to the specified owner.
Optional<org.apache.flink.runtime.jobmaster.slotpool.AllocatedSlot>	freeReservedSlot(AllocationID allocationId, long currentTime)	Frees the reserved slot, adding it back into the set of free slots.
Collection<? extends SlotInfo>	getAllSlotsInformation()	Returns information about all slots in this pool.
FreeSlotTracker	getFreeSlotTracker()	Returns information about all currently free slots.
Optional<SlotInfo>	getSlotInformation(AllocationID allocationID)	Returns slot information specified by the given allocationId.
Optional<org.apache.flink.runtime.jobmaster.slotpool.AllocatedSlot>	removeSlot(AllocationID allocationId)	Removes the slot with the given allocationId from the slot pool.
AllocatedSlotPool.AllocatedSlotsAndReservationStatus	removeSlots(ResourceID owner)	Removes all slots belonging to the owning TaskExecutor identified by owner.
org.apache.flink.runtime.jobmaster.slotpool.AllocatedSlot	reserveFreeSlot(AllocationID allocationId)	Reserves the free slot specified by the given allocationId.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DefaultAllocatedSlotPool

public DefaultAllocatedSlotPool()

Method Detail

addSlots

public void addSlots(Collection<org.apache.flink.runtime.jobmaster.slotpool.AllocatedSlot> slots,
                     long currentTime)

Description copied from interface: AllocatedSlotPool

Adds the given collection of slots to the slot pool.

Specified by:

addSlots in interface AllocatedSlotPool

Parameters:

slots - slots to add to the slot pool

currentTime - currentTime when the slots have been added to the slot pool

removeSlot

public Optional<org.apache.flink.runtime.jobmaster.slotpool.AllocatedSlot> removeSlot(AllocationID allocationId)

Description copied from interface: AllocatedSlotPool

Removes the slot with the given allocationId from the slot pool.

Specified by:

removeSlot in interface AllocatedSlotPool

Parameters:

allocationId - allocationId identifying the slot to remove from the slot pool

Returns:

the removed slot if there was a slot with the given allocationId; otherwise Optional.empty()

removeSlots

public AllocatedSlotPool.AllocatedSlotsAndReservationStatus removeSlots(ResourceID owner)

Description copied from interface: AllocatedSlotPool

Removes all slots belonging to the owning TaskExecutor identified by owner.

Specified by:

removeSlots in interface AllocatedSlotPool

Parameters:

owner - owner identifies the TaskExecutor whose slots shall be removed

Returns:

the collection of removed slots and for each slot whether it was currently free

containsSlots

public boolean containsSlots(ResourceID owner)

Description copied from interface: AllocatedSlotPool

Checks whether the slot pool contains at least one slot belonging to the specified owner.

Specified by:

containsSlots in interface AllocatedSlotPool

Parameters:

owner - owner for which to check whether the slot pool contains slots

Returns:

true if the slot pool contains a slot from the given owner; otherwise false

containsSlot

public boolean containsSlot(AllocationID allocationId)

Description copied from interface: AllocatedSlotPool

Checks whether the slot pool contains a slot with the given allocationId.

Specified by:

containsSlot in interface AllocatedSlotPool

Parameters:

allocationId - allocationId identifying the slot for which to check whether it is contained

Returns:

true if the slot pool contains the slot with the given allocationId; otherwise false

containsFreeSlot

public boolean containsFreeSlot(AllocationID allocationId)

Description copied from interface: AllocatedSlotPool

Checks whether the slot pool contains a slot with the given AllocationID and if it is free.

Specified by:

containsFreeSlot in interface AllocatedSlotPool

Parameters:

allocationId - allocationId specifies the slot to check for

Returns:

true if the slot pool contains a free slot registered under the given allocation id; otherwise false

reserveFreeSlot

public org.apache.flink.runtime.jobmaster.slotpool.AllocatedSlot reserveFreeSlot(AllocationID allocationId)

Description copied from interface: AllocatedSlotPool

Reserves the free slot specified by the given allocationId.

Specified by:

reserveFreeSlot in interface AllocatedSlotPool

Parameters:

allocationId - allocationId identifying the free slot to reserve

Returns:

the AllocatedSlot which has been reserved

freeReservedSlot

public Optional<org.apache.flink.runtime.jobmaster.slotpool.AllocatedSlot> freeReservedSlot(AllocationID allocationId,
                                                                                            long currentTime)

Description copied from interface: AllocatedSlotPool

Frees the reserved slot, adding it back into the set of free slots.

Specified by:

freeReservedSlot in interface AllocatedSlotPool

Parameters:

allocationId - identifying the reserved slot to freed

currentTime - currentTime when the slot has been freed

Returns:

the freed AllocatedSlot if there was an allocated with the given allocationId; otherwise Optional.empty().

getSlotInformation

public Optional<SlotInfo> getSlotInformation(AllocationID allocationID)

Description copied from interface: AllocatedSlotPool

Returns slot information specified by the given allocationId.

Specified by:

getSlotInformation in interface AllocatedSlotPool

Returns:

the slot information if there was a slot with the given allocationId; otherwise Optional.empty()

getFreeSlotTracker

public FreeSlotTracker getFreeSlotTracker()

Description copied from interface: AllocatedSlotPool

Returns information about all currently free slots.

Specified by:

getFreeSlotTracker in interface AllocatedSlotPool

Returns:

free slot information

getAllSlotsInformation

public Collection<? extends SlotInfo> getAllSlotsInformation()

Description copied from interface: AllocatedSlotPool

Returns information about all slots in this pool.

Specified by:

getAllSlotsInformation in interface AllocatedSlotPool

Returns:

collection of all slot information