Elastic cloud platform optimal scheduling strategy design based on SaaS
Zhao Shao-k · Jisuanji yingyong yanjiu · 2014
The use of virtualization technology makes software applications more effective which deployed over cloud computing platforms,but also brings challenges to the resource management and service scheduling over cloud. This paper focused on novel mechanisms which provide optimal deployment and scheduling of cloud services in SaaS scenarios on the foundation of studying some differences between IaaS and SaaS scheduling,and proposed a stochastic model to describe the scheduling process as a multi-objective optimization problem. Besides some QoS( quality of service) issues,the most significant property of cloud services-elasticity has been considered in this model,and not only the scheduling of SaaS tasks but also the arrangement of elastic service replicas are provided by our mechanisms. Experiment results show that the deployment and scheduling mechanisms optimize the overall performance,load balance condition as well as the resource usage of the cloud computing platform.