org.inria.myriads.snoozenode.groupmanager.estimator
Class ResourceDemandEstimator

java.lang.Object
  org.inria.myriads.snoozenode.groupmanager.estimator.ResourceDemandEstimator

public final class ResourceDemandEstimator
extends Object

Resource demand estimator.

Author:

Eugen Feller

Constructor Summary

ResourceDemandEstimator(EstimatorSettings estimatorSettings, MonitoringThresholds monitoringThresholds, PackingDensity packingDensity)
Constructor.

Method Summary

List<Double>	applyPackingDensity(List<Double> requestedCapacity, PackingDensity packingDensity) Creates new requested capacity.
ArrayList<Double>	computeMaxAllowedCapacity(org.inria.myriads.snoozecommon.communication.localcontroller.LocalControllerDescription description) Computes the allowed utilization.
ArrayList<Double>	computeUsedLocalControllerCapacity(org.inria.myriads.snoozecommon.communication.localcontroller.LocalControllerDescription localController) Estimates the local controller utilization.
ArrayList<Double>	estimateVirtualMachineResourceDemand(Map<Long,org.inria.myriads.snoozecommon.communication.virtualcluster.monitoring.VirtualMachineMonitoringData> virtualMachineHistory) Estimates virtual machine resource demands.
org.inria.myriads.snoozecommon.communication.groupmanager.summary.GroupManagerSummaryInformation	generateGroupManagerSummaryInformation(ArrayList<org.inria.myriads.snoozecommon.communication.localcontroller.LocalControllerDescription> localControllers, ArrayList<String> legacyIpAddresses) Returns the current group manager summary data.
int	getNumberOfMonitoringEntries() Number of monitoring entries.
SortNorm	getSortNorm() Returns the sort norm.
boolean	hasEnoughGroupManagerCapacity(org.inria.myriads.snoozecommon.communication.virtualcluster.VirtualMachineMetaData virtualMachine, org.inria.myriads.snoozecommon.communication.groupmanager.GroupManagerDescription groupManager) Verifies weather a virtual machine fits into the group manager based on its summary information.
boolean	hasEnoughLocalControllerCapacity(org.inria.myriads.snoozecommon.communication.virtualcluster.VirtualMachineMetaData virtualMachine, org.inria.myriads.snoozecommon.communication.localcontroller.LocalControllerDescription localController) Checks whether a local controller has enough active capacity to host the VM.

Methods inherited from class java.lang.Object

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

Constructor Detail

ResourceDemandEstimator

public ResourceDemandEstimator(EstimatorSettings estimatorSettings,
                               MonitoringThresholds monitoringThresholds,
                               PackingDensity packingDensity)

Constructor.

Parameters:

estimatorSettings - The estimator settings

monitoringThresholds - The monitoring thresholds

packingDensity - The packing density

Method Detail

hasEnoughGroupManagerCapacity

public boolean hasEnoughGroupManagerCapacity(org.inria.myriads.snoozecommon.communication.virtualcluster.VirtualMachineMetaData virtualMachine,
                                             org.inria.myriads.snoozecommon.communication.groupmanager.GroupManagerDescription groupManager)

Verifies weather a virtual machine fits into the group manager based on its summary information.

Parameters:

virtualMachine - The virtual machine meta data

groupManager - The group manager data

Returns:

true if everything ok, false otherwise

applyPackingDensity

public List<Double> applyPackingDensity(List<Double> requestedCapacity,
                                        PackingDensity packingDensity)

Creates new requested capacity.

Parameters:

requestedCapacity - The requested capacity

packingDensity - The packing density

Returns:

The new capacity vector

hasEnoughLocalControllerCapacity

public boolean hasEnoughLocalControllerCapacity(org.inria.myriads.snoozecommon.communication.virtualcluster.VirtualMachineMetaData virtualMachine,
                                                org.inria.myriads.snoozecommon.communication.localcontroller.LocalControllerDescription localController)

Checks whether a local controller has enough active capacity to host the VM.

Parameters:

virtualMachine - The virtual machine meta data

localController - The local controller description

Returns:

true if enough capacity vailable, false otherwise

computeUsedLocalControllerCapacity

public ArrayList<Double> computeUsedLocalControllerCapacity(org.inria.myriads.snoozecommon.communication.localcontroller.LocalControllerDescription localController)

Estimates the local controller utilization.

Parameters:

localController - The local controller description

Returns:

The estimated local controller utilization

estimateVirtualMachineResourceDemand

public ArrayList<Double> estimateVirtualMachineResourceDemand(Map<Long,org.inria.myriads.snoozecommon.communication.virtualcluster.monitoring.VirtualMachineMonitoringData> virtualMachineHistory)

Estimates virtual machine resource demands.

Parameters:

virtualMachineHistory - The virtual machine history

Returns:

The estimated virtual machine monitoring data

generateGroupManagerSummaryInformation

public org.inria.myriads.snoozecommon.communication.groupmanager.summary.GroupManagerSummaryInformation generateGroupManagerSummaryInformation(ArrayList<org.inria.myriads.snoozecommon.communication.localcontroller.LocalControllerDescription> localControllers,
                                                                                                                                               ArrayList<String> legacyIpAddresses)

Returns the current group manager summary data.

Parameters:

localControllers - The list of local controllers

legacyIpAddresses - The list of legacy ip addresses

Returns:

The group manager summary information

computeMaxAllowedCapacity

public ArrayList<Double> computeMaxAllowedCapacity(org.inria.myriads.snoozecommon.communication.localcontroller.LocalControllerDescription description)

Computes the allowed utilization.

Parameters:

description - The local controller description

Returns:

The allowed capacity

getNumberOfMonitoringEntries

public int getNumberOfMonitoringEntries()

Number of monitoring entries.

Returns:

The number of monitoring entries

getSortNorm

public SortNorm getSortNorm()

Returns the sort norm.

Returns:

The sort norm