如何在clousim中实现作业迁移容错技术？

Question

我想在cloudsim中为失败的任务实现作业迁移。gitHub等上是否有可用的源代码？

Answer 1

CloudSim 不实现 Cloudlet 迁移或故障注入。

但是，如果您想使用现代、功能齐全、最先进且更易于使用的 CloudSim 分支，请尝试CloudSim Plus。它有一个不迁移 Cloudlets 的故障注入模块，但是当 VM 由于其主机上的故障而发生故障时，会从快照中创建该 VM 的克隆并重新启动 Cloudlets。

要注入故障并启用虚拟机克隆，您可以执行以下代码：

long seed = System.currentTimeMillis();

//Creates a random number generator following the Poisson distribution
//MEAN_FAILURE_NUMBER_PER_HOUR is a constant you have to create
//to define the mean number of Host failures per hour.
ContinuousDistribution poisson = new PoissonDistr(MEAN_FAILURE_NUMBER_PER_HOUR, seed);

//The object that will inject random failures into Host's PEs.
HostFaultInjection fault = new HostFaultInjection(datacenter0, poisson);
fault.setMaxTimeToFailInHours(800);

//Defines a cloner function (cloneVm method) that will be called 
//when a VM from a given broker fails due to a Host failure.
//The call to addVmCloner also defines a method to clone the cloudlets
//running inside the failed VM. 
fault.addVmCloner(broker, new VmClonerSimple(this::cloneVm, this::cloneCloudlets)));

要查看和理解完整示例，请关注 CloudSim Plus 中的 this link 和 faulinjection package documentation。