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

Class DefaultFreeSlotTracker

java.lang.Object

org.apache.flink.runtime.jobmaster.slotpool.DefaultFreeSlotTracker

All Implemented Interfaces:

FreeSlotTracker

public class DefaultFreeSlotTracker
extends Object
implements FreeSlotTracker

Default implements of FreeSlotTracker.

Constructor Summary

Constructors

Constructor	Description
DefaultFreeSlotTracker(Set<AllocationID> freeSlots, Function<AllocationID,PhysicalSlot> physicalSlotLookup, Function<AllocationID,AllocatedSlotPool.FreeSlotInfo> freeSlotInfoLookup, Function<ResourceID,Double> taskExecutorUtilizationLookup)

Method Summary

Modifier and Type	Method	Description
DefaultFreeSlotTracker	createNewFreeSlotTrackerWithoutBlockedSlots(Set<AllocationID> blockedSlots)	Create a new free slot tracker without blocked slots.
Set<AllocationID>	getAvailableSlots()	Get allocation id of all available slots.
Collection<PhysicalSlot>	getFreeSlotsInformation()	Returns a list of PhysicalSlot 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 Details

DefaultFreeSlotTracker

public DefaultFreeSlotTracker(Set<AllocationID> freeSlots,
 Function<AllocationID,PhysicalSlot> physicalSlotLookup,
 Function<AllocationID,AllocatedSlotPool.FreeSlotInfo> freeSlotInfoLookup,
 Function<ResourceID,Double> taskExecutorUtilizationLookup)

Method Details

getAvailableSlots

public Set<AllocationID> getAvailableSlots()

Description copied from interface: FreeSlotTracker

Get allocation id of all available slots.

Specified by:

getAvailableSlots in interface FreeSlotTracker

Returns:

allocation id of available slots

getSlotInfo

public SlotInfo getSlotInfo(AllocationID allocationId)

Description copied from interface: FreeSlotTracker

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

Specified by:

getSlotInfo in interface FreeSlotTracker

Parameters:

allocationId - to get SlotInfo

Returns:

slot info for the allocation id

getFreeSlotsWithIdleSinceInformation

public Collection<AllocatedSlotPool.FreeSlotInfo> getFreeSlotsWithIdleSinceInformation()

Description copied from interface: FreeSlotTracker

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 FreeSlotTracker

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<PhysicalSlot> getFreeSlotsInformation()

Description copied from interface: FreeSlotTracker

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

Specified by:

getFreeSlotsInformation in interface FreeSlotTracker

Returns:

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

getTaskExecutorUtilization

public double getTaskExecutorUtilization(SlotInfo slotInfo)

Description copied from interface: FreeSlotTracker

Get task executor utilization of this slot.

Specified by:

getTaskExecutorUtilization in interface FreeSlotTracker

Parameters:

slotInfo - to get task executor utilization

Returns:

task executor utilization of this slot

reserveSlot

public void reserveSlot(AllocationID allocationId)

Description copied from interface: FreeSlotTracker

Reserve free slot when it is used.

Specified by:

reserveSlot in interface FreeSlotTracker

Parameters:

allocationId - to reserve

createNewFreeSlotTrackerWithoutBlockedSlots

public DefaultFreeSlotTracker createNewFreeSlotTrackerWithoutBlockedSlots(Set<AllocationID> blockedSlots)

Description copied from interface: FreeSlotTracker

Create a new free slot tracker without blocked slots.

Specified by:

createNewFreeSlotTrackerWithoutBlockedSlots in interface FreeSlotTracker

Parameters:

blockedSlots - slots that should not be used

Returns:

the new free slot tracker