org.apache.flink.runtime.jobmaster.slotpool

Class DefaultFreeSlotInfoTracker

java.lang.Object

org.apache.flink.runtime.jobmaster.slotpool.DefaultFreeSlotInfoTracker

All Implemented Interfaces:

FreeSlotInfoTracker

public class DefaultFreeSlotInfoTracker
extends Object
implements FreeSlotInfoTracker

Default implements of FreeSlotInfoTracker.

Constructor Summary

Constructors

Constructor and Description
DefaultFreeSlotInfoTracker(Set<AllocationID> freeSlots, java.util.function.Function<AllocationID,SlotInfo> slotInfoLookup, java.util.function.Function<AllocationID,AllocatedSlotPool.FreeSlotInfo> freeSlotInfoLookup, java.util.function.Function<ResourceID,Double> taskExecutorUtilizationLookup)

Method Summary

Modifier and Type	Method and Description
DefaultFreeSlotInfoTracker	createNewFreeSlotInfoTrackerWithoutBlockedSlots(Set<AllocationID> blockedSlots) Create a new free slot tracker without blocked slots.
Set<AllocationID>	getAvailableSlots() Get allocation id of all available slots.
Collection<SlotInfo>	getFreeSlotsInformation() Returns a list of SlotInfo objects about all slots that are currently available in the slot pool.
Collection<AllocatedSlotPool.FreeSlotInfo>	getFreeSlotsWithIdleSinceInformation() Returns a list of AllocatedSlotPool.FreeSlotInfo objects about all slots with slot idle since that are currently available in the slot pool.
SlotInfo	getSlotInfo(AllocationID allocationId) Get slot info by allocation id, this slot must exist.
double	getTaskExecutorUtilization(SlotInfo slotInfo) Get task executor utilization of this slot.
void	reserveSlot(AllocationID allocationId) Reserve free slot when it is used.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultFreeSlotInfoTracker

public DefaultFreeSlotInfoTracker(Set<AllocationID> freeSlots,
                                  java.util.function.Function<AllocationID,SlotInfo> slotInfoLookup,
                                  java.util.function.Function<AllocationID,AllocatedSlotPool.FreeSlotInfo> freeSlotInfoLookup,
                                  java.util.function.Function<ResourceID,Double> taskExecutorUtilizationLookup)

Method Detail

getAvailableSlots

public Set<AllocationID> getAvailableSlots()

Description copied from interface: FreeSlotInfoTracker

Get allocation id of all available slots.

Specified by:

getAvailableSlots in interface FreeSlotInfoTracker

Returns:

allocation id of available slots

getSlotInfo

public SlotInfo getSlotInfo(AllocationID allocationId)

Description copied from interface: FreeSlotInfoTracker

Get slot info by allocation id, this slot must exist.

Specified by:

getSlotInfo in interface FreeSlotInfoTracker

Parameters:

allocationId - to get SlotInfo

Returns:

slot info for the allocation id

getFreeSlotsWithIdleSinceInformation

public Collection<AllocatedSlotPool.FreeSlotInfo> getFreeSlotsWithIdleSinceInformation()

Description copied from interface: FreeSlotInfoTracker

Returns a list of AllocatedSlotPool.FreeSlotInfo objects about all slots with slot idle since that are currently available in the slot pool.

Specified by:

getFreeSlotsWithIdleSinceInformation in interface FreeSlotInfoTracker

Returns:

a list of AllocatedSlotPool.FreeSlotInfo objects about all slots with slot idle since that are currently available in the slot pool.

getFreeSlotsInformation

public Collection<SlotInfo> getFreeSlotsInformation()

Description copied from interface: FreeSlotInfoTracker

Returns a list of SlotInfo objects about all slots that are currently available in the slot pool.

Specified by:

getFreeSlotsInformation in interface FreeSlotInfoTracker

Returns:

a list of SlotInfo objects about all slots that are currently available in the slot pool.

getTaskExecutorUtilization

public double getTaskExecutorUtilization(SlotInfo slotInfo)

Description copied from interface: FreeSlotInfoTracker

Get task executor utilization of this slot.

Specified by:

getTaskExecutorUtilization in interface FreeSlotInfoTracker

Parameters:

slotInfo - to get task executor utilization

Returns:

task executor utilization of this slot

reserveSlot

public void reserveSlot(AllocationID allocationId)

Description copied from interface: FreeSlotInfoTracker

Reserve free slot when it is used.

Specified by:

reserveSlot in interface FreeSlotInfoTracker

Parameters:

allocationId - to reserve

createNewFreeSlotInfoTrackerWithoutBlockedSlots

public DefaultFreeSlotInfoTracker createNewFreeSlotInfoTrackerWithoutBlockedSlots(Set<AllocationID> blockedSlots)

Description copied from interface: FreeSlotInfoTracker

Create a new free slot tracker without blocked slots.

Specified by:

createNewFreeSlotInfoTrackerWithoutBlockedSlots in interface FreeSlotInfoTracker

Parameters:

blockedSlots - slots that should not be used

Returns:

the new free slot tracker