public void Start()
{
reportService.Initialize(servers.Select(s => s.Id));
foreach (var @event in events)
{
Logger.LogMessage($"Simualtion step {@event.Id} (t={@event.Time})");
var newVMs = AdvanceSimulation(@event);
Prognose(@event.Id);
DiagnoseAndMigrateIfNeeded(diagnosticService.DetectOverloadedMachines, migrationManager.MigrateFromOverloaded);
if (newVMs.Count() > 0)
{
// assign new VMs
var result = vmAsigner.Asign(newVMs, servers);
VMs.Add(result.Asigned);
}
// TODO: should we used prgnoses for releasing too?
DiagnoseAndMigrateIfNeeded(diagnosticService.DetectLowloadedMachines, migrationManager.ReleaseLowloadedMachines);
WriteServerStatistics(@event.Id);
}
SaveResults();
}
//Fork means to duplicate proccess
public VirtualMachine ForkVirtualMachine(VirtualMachine virtualMachine)
{
VirtualMachine vm;
try
{
vm = new VirtualMachine(virtualMachine);
VirtualMachines.Add(vm);
return(vm);
}
catch (Exception)
{
if (virtualMachine != null)
{
virtualMachine.ReleaseResources();
}
throw new InsufficientMemoryException("No more memmory");
}
}
/// <summary>
/// Returns a list of Permanent Virtual Machine roles. Each Virtual Machine object contains some metadata of the actual virtual machine
/// </summary>
/// <returns>A list of Permanent Virtual Machine Roles</returns>
public VirtualMachines GetAllVirtualMachineRoles()
{
ComputeManagementClient client = new ComputeManagementClient(MyCloudCredentials);
try
{
VirtualMachines vms = new VirtualMachines(new List <VirtualMachine>());
var hostedServices = client.HostedServices.List();
foreach (var service in hostedServices)
{
var deployment = GetAzureDeyployment(service.ServiceName, DeploymentSlot.Production);
if (deployment != null)
{
if (deployment.Roles.Count > 0)
{
VirtualMachine vm = null;
foreach (var role in deployment.Roles)
{
if (role.RoleType == VirtualMachineRoleType.PersistentVMRole.ToString())
{
var operatingSystem = string.Format("{0}--{1}", role.OSVirtualHardDisk.OperatingSystem, role.OSVirtualHardDisk.SourceImageName);
var rate = Configuration.GetAzureRates().GetMyRate(role.RoleSize);
vm = new VirtualMachine(role.RoleName, role.RoleSize, role.RoleType, operatingSystem, rate);
vms.Add(vm);
}
}
}
}
}
return(vms);
}
catch (CloudException ce)
{
Logger.Warn(ce, String.Format("Exception during retrieval of Virtual Machine Roles Exception: {0}", ce));
}
return(null);
}
