hu.mta.sztaki.lpds.cloud.simulator.iaas.pmscheduling
Class AlwaysOnMachines

java.lang.Object
  hu.mta.sztaki.lpds.cloud.simulator.iaas.pmscheduling.PhysicalMachineController
      hu.mta.sztaki.lpds.cloud.simulator.iaas.pmscheduling.AlwaysOnMachines

public class AlwaysOnMachines
extends PhysicalMachineController

This PM controller ensures that all newly registered PMs are switched on immediately and newer turned off again. WARNING: using this PM controller does not guarantee that all the PMs will be switched on in a given time instance. There are transient cases when a just registered PM is not yet turned on completely.

Author:

"Gabor Kecskemeti, Distributed and Parallel Systems Group, University of Innsbruck (c) 2013" "Gabor Kecskemeti, Laboratory of Parallel and Distributed Systems, MTA SZTAKI (c) 2012"

Field Summary

Fields inherited from class hu.mta.sztaki.lpds.cloud.simulator.iaas.pmscheduling.PhysicalMachineController

parent, queueingEvent

Constructor Summary

AlwaysOnMachines(IaaSService parent)
Constructs the scheduler and passes the parent IaaSService to the superclass.

Method Summary

protected VMManager.CapacityChangeEvent<PhysicalMachine>	getHostRegEvent() When a new PM is registered to the IaaS service the below controller automatically turns it on.
protected Scheduler.QueueingEvent	getQueueingEvent() Describes an event handler that does nothing upon the start of VM queueing.

Methods inherited from class java.lang.Object

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

Constructor Detail

AlwaysOnMachines

public AlwaysOnMachines(IaaSService parent)

Constructs the scheduler and passes the parent IaaSService to the superclass.

Parameters:

parent - the IaaSService to serve

Method Detail

getHostRegEvent

protected VMManager.CapacityChangeEvent<PhysicalMachine> getHostRegEvent()

When a new PM is registered to the IaaS service the below controller automatically turns it on. WARNING if one independently switches off a PM while it is registered with the IaaS service, this controller will not turn it on again.

Specified by:

getHostRegEvent in class PhysicalMachineController

Returns:

the object to handle the registration events

getQueueingEvent

protected Scheduler.QueueingEvent getQueueingEvent()

Describes an event handler that does nothing upon the start of VM queueing. This PM controller would not have anything to do anyway as all the PMs in the iaas are ensured to be on all the time.

Specified by:

getQueueingEvent in class PhysicalMachineController

Returns:

the object to handle the VM scheduling related events