Research On High Availability Multi Machine Cluster System Technology And Its Application In Operation And Maintenance Audit System

With the increasing digitization of enterprises,the information system of enterprises has become more and more huge.In order to maintain the normal and stable operation of the information system,there are more and more operation and maintenance and audit work.Using the operation and maintenance audit system as the operation and maintenance operation platform to realize the supervision of operation and maintenance operation is an important way to impro ve the compliance of operation and maintenance and the security of information system.Therefore,the availability of operation and maintenance audit system is an important guarantee for normal operation and maintenance.This dissertation deeply studies the database synchronization technology,memory database,the concept of virtual IP and virtual routing Redundancy Protocol(VRRP)in the cluster system of high availability multi machine cluster;This paper makes a detailed investigation on the actual situation of the audit system of the operation and maintenance department of a company subordinate to the State Grid,summarizes the problems exposed by the operation and maintenance audit system under the trend of the rapid increase of the workload of operation and maintenance and audit according to the current deployment and working mode,draws the conclusion that it is necessary to apply the highly available multi machine cluster technology to the operation and maintenance audit system to improve the system availability,and analyzes the problems to be solved in the application process.Then the overall design scheme of applying the high availability multi machine cluster technology to the three-tier and six modules of the operation and maintenance audit system is made.Global dynamic username and password mechanism(gdrup),global control command mechanism and load balancing algorithm for operation and maintenance audit high availability multi machine cluster are proposed to solve the problems in the application process.Finally,according to the design scheme,the high availability multi machine cluster of the operation and maintenance audit system is developed,configured and deployed,and the cluster database data synchronization,memory data synchronization,web session maintenance,high availability,operation and maintenance work process,audit work process,session disconnection work process and load balancing ability are tested.The test results show that the scheme is of great significance to improve the availability,scalability and data security of the operation and maintenance audit system.At present,the system has been put into trial operation in a subordinate company of the State Grid.