org.openspaces.grid.gsm.machines

Class BinPackingSolver

java.lang.Object

org.openspaces.grid.gsm.machines.BinPackingSolver

public class BinPackingSolver
extends Object

A greedy 2D bin packing algorithm.

Author:

itaif

Constructor Summary

Constructors

Constructor and Description
BinPackingSolver()

Method Summary

Modifier and Type	Method and Description
CapacityRequirementsPerAgent	getAllocatedCapacityForPu()
CapacityRequirementsPerAgent	getAllocatedCapacityResult()
CapacityRequirementsPerAgent	getDeallocatedCapacityResult()
CapacityRequirementsPerAgent	getUnallocatedCapacity()
boolean	isAllowMoreThanAverageMemoryPerMachine()
void	reset() cleans AllocatedResult and DeallocatedResult Used for unit testing
void	setAgentAllocationPriority(Map<String,Long> agentPriority) The higher the priority the less likely for the machine to be scaled in
void	setAllocatedCapacityForPu(CapacityRequirementsPerAgent allocatedCapacityForPu) Sets the currently allocated capacity of PU
void	setAllowMoreThanAverageMemoryPerMachine(boolean allowMoreThanAverageMemoryPerMachine)
void	setContainerMemoryCapacityInMB(long containerMemoryCapacityInMB) Sets the smallest unit of memory allocation.
void	setLogger(org.apache.commons.logging.Log logger) Sets the processing unit specific logger
void	setMaxAllocatedMemoryCapacityOfPuInMB(long maxMemoryInMB) Sets the maximum total memory that can be allocated for PU
void	setMaxAllocatedMemoryCapacityOfPuPerMachineInMB(long maxMemoryCapacityPerMachineInMB) Sets the maximum total memory that can be allocated for PU on a single machine
void	setMinimumNumberOfMachines(int minimumNumberOfMachines) Used for high availability purposes to calculate maximum cpu and memory per machine.
void	setUnallocatedCapacity(CapacityRequirementsPerAgent unallocatedCapacity) Sets the remaining unallocated capacity on existing agents.
void	solveManualCapacityScaleIn(CapacityRequirements capacityToDeallocate)
void	solveManualCapacityScaleOut(CapacityRequirements capacityToAllocate)
void	solveNumberOfMachines(int numberOfMachines)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

BinPackingSolver

public BinPackingSolver()

Method Detail

isAllowMoreThanAverageMemoryPerMachine

public boolean isAllowMoreThanAverageMemoryPerMachine()

setAllowMoreThanAverageMemoryPerMachine

public void setAllowMoreThanAverageMemoryPerMachine(boolean allowMoreThanAverageMemoryPerMachine)

setMinimumNumberOfMachines

public void setMinimumNumberOfMachines(int minimumNumberOfMachines)

Used for high availability purposes to calculate maximum cpu and memory per machine. For example if min number of machines is 2, then max memory per machine is half of the total memory

setLogger

public void setLogger(org.apache.commons.logging.Log logger)

Sets the processing unit specific logger

setContainerMemoryCapacityInMB

public void setContainerMemoryCapacityInMB(long containerMemoryCapacityInMB)

Sets the smallest unit of memory allocation.

setUnallocatedCapacity

public void setUnallocatedCapacity(CapacityRequirementsPerAgent unallocatedCapacity)

Sets the remaining unallocated capacity on existing agents.

setAgentAllocationPriority

public void setAgentAllocationPriority(Map<String,Long> agentPriority)

The higher the priority the less likely for the machine to be scaled in

Parameters:

agentPriority - - a map between agent UID and its priority

setAllocatedCapacityForPu

public void setAllocatedCapacityForPu(CapacityRequirementsPerAgent allocatedCapacityForPu)

Sets the currently allocated capacity of PU

setMaxAllocatedMemoryCapacityOfPuInMB

public void setMaxAllocatedMemoryCapacityOfPuInMB(long maxMemoryInMB)

Sets the maximum total memory that can be allocated for PU

setMaxAllocatedMemoryCapacityOfPuPerMachineInMB

public void setMaxAllocatedMemoryCapacityOfPuPerMachineInMB(long maxMemoryCapacityPerMachineInMB)

Sets the maximum total memory that can be allocated for PU on a single machine

solveManualCapacityScaleIn

public void solveManualCapacityScaleIn(CapacityRequirements capacityToDeallocate)

solveManualCapacityScaleOut

public void solveManualCapacityScaleOut(CapacityRequirements capacityToAllocate)

solveNumberOfMachines

public void solveNumberOfMachines(int numberOfMachines)

getAllocatedCapacityResult

public CapacityRequirementsPerAgent getAllocatedCapacityResult()

getDeallocatedCapacityResult

public CapacityRequirementsPerAgent getDeallocatedCapacityResult()

getAllocatedCapacityForPu

public CapacityRequirementsPerAgent getAllocatedCapacityForPu()

getUnallocatedCapacity

public CapacityRequirementsPerAgent getUnallocatedCapacity()

reset

public void reset()

cleans AllocatedResult and DeallocatedResult Used for unit testing

toString

public String toString()

Overrides:

toString in class Object