Design and Implementation of High-availability PaaS Platform Based on Virtualization Platform

In view of the problems of the virtual platform failure migration mechanism under the cloud model and microservice architecture platform, the demand for redundant resources is large, and the failure recovery time is long. The key components such as the operating components, resource pools and middleware of the PaaS platform are analyzed, combined with virtualization The platform deployment application is practical. The PaaS platform high-availability architecture is designed to realize the PaaS platform high-availability deployment mode, which effectively improves the robustness of the PaaS platform and guarantees the business continuity of the application system running on the PaaS platform. This paper first analyzes the functional architecture and role positioning of the PaaS platform; secondly, it proposes high-availability design of operating components, resource pools and middleware, and at the same time maps the design to the physical deployment mode, the experimental results show that the design is feasible and effective.