Abstract: When the enterprise integrates the application system,it is a common practice to use the independent authentication system to exchange and share the identity information of the platform.How to deal with user requests with high concurrency and large user traffic is an important issue to ensure the stable and efficient operation of the authentication system.In view of the overload of single authentication center,the single point failure and the slow response of the system,this paper proposed to cluster the authentication server.The authentication ticket is stored in the cache so that multiple nodes can share authentication information,and the important and frequently used data can be pre-fetched as cache to improve response speed.This paper proposed a multi-factor cache replacement algorithm based on Hybrid combining the complex and diversified user behavior to improve the effectiveness of data replacement.The experimental results show that the optimized distributed authentication architecture can guarantee system stability and improve system response speed,and the multi-factor cache replacement algorithm based on Hybrid can improve cache hit ratio.

Key words: Application system integration,Identity authentication,High availability,Cache mechanism,Cache replacement algorithm