Enterprise-class Cluster Server Technology Research

Along with the rapid development of Internet, more and more people are using Internet. Prevenient technique of server can't meet the requirement. Cluster technology is an effective method of solving this problem. Now, the leading products of cluster are overseas. These products can't satisfy with the demands of enterprises and government because of price and security problems. The paper studies general load balance cluster and implements HAECS (High Available Enterprise Cluster Server). This system realized virtual service platform. Therefore, it has academic and applied value.The paper aims at load balance cluster technique based on LVS and implement a software-HAECS faced the application of enterprises. The research work mentioned in this paper is mainly about:(1) It studies the structure of Netfilter and the technique of LVS. It establishes a simulation environment based on LVS. It presents the limitation of LVS, such as arduous installation and management, no function of monitoring node's services.(2) It analyzes the architecture of load balance cluster. The paper describes the principle of every part and presents how to implement virtual services.(3) It describes the design and implementation of HAECS, which comprises data structure, arithmetic, program flow and some other techniques in the implement.(4) It presents the architecture and basic function of HAECS. It fulfills primary modules, which includes management and control interface, not only monitoring the state s of real nodes, but also the state of the service modules. It will delete it from the server table reside at the director when the real server or the service doesn't work properly . Finally, it presents the results of testing.In the course of design and implementation, it solves many problems, such as the configure of Linux, the evaluation and testing of software.the codes of the HAECS are written in C and accord to POSIX, can run under many Linux version.The accomplished production has been introduced into a enterprise, under the strict test conducted by the corporation, gain the praise and admits.