A method for improving information synchronization mechanism in Eucalyptus

Cloud computing is a fusion of network technology and traditional computer technology. It aims to deliver the powerful computing capability to end users through the advanced business model such as SaaS, PaaS, and IaaS. IaaS can provide a convenient, flexible and pay-per-use infrastructure for PaaS and SaaS. This paper is focused on Eucalyptus - a famous open source IaaS platform. After a brief introduction to the Eucalyptus, a detailed analysis about information synchronization mechanism shows some issues of information synchronization mechanism. According to the specific scenes, we have given a reasonable solution. With this solution, Eucalyptus can automatically restore to the state before when physical machine reboot for some reason and Eucalyptus can support live migration and dynamic adjustment of the virtual machine resources. At the end of the paper, experiments show the effect of the improvement on the Eucalyptus.