Research on Resource Management in PaaS Based on IaaS Environment

Abstract

As one of the three service models of cloud computing, PaaS (Platform as a Service) has gained more and more popularity for its capabilities in optimizing development productivity and business agility. However, the traditional PaaS uses the dedicated infrastructure, which generally leads to the low infrastructure utilization rate. To solve the above problem, PaaS based on IaaS (PoI) emerged, in which IaaS (Infrastructure as a Service) is involved to provide PaaS the infrastructure, to decrease the response time of the infrastructure scale and to increase the utilization of the infrastructure. Because PoI has many characteristics, resource management mechanisms used in the traditional PaaS or IaaS could no longer adopted in PoI. In this paper, an adaptive resource management framework and the corresponding scale-up, scale-down algorithms are brought forward to guarantee the QoS of applications deployed in PaaS platform as well as to decrease the rental cost of VMs from IaaS providers. Experimental results show that the resource management mechanisms proposed in this paper can not only guarantee QoS of all applications, but also improve the utilization rate of the infrastructure, thus to make PoI possess the advantages of both PaaS and IaaS.