Design And Implementation Of Load Balance Module In Database Cluster Middleware

In recent years, with the rapid development and extensive application of Internet technology, the scale of data has exploded.Massive information and large amount of user requests have posed severe challenges to the database system. More and more users want to have transparent access and Database clustering technology has been developed to handle data from multiple databases. Database cluster technology is the organic connection of the existing database, unified management, to provide users with a unified and transparent services,thus effectively improve the performance of the cluster.However, in order to make the database cluster provide high-quality service to users in time and efficiently, it is necessary to solve the problem of allocating tasks according to the node's performance and the existing load under the condition of low investment, and the distribution of the workload is reasonable. Balanced, so that cluster nodes can fully coordinate the work of the problem and improve the reliability of the cluster and scalability issues. Load balancing technology can help us solve such problems. By using the load balancing technology, the database cluster can allocate the data request of the new application system according to the load information of the back-end nodes and adjust the load of the database nodes in the cluster. Thus, the average response time of the whole cluster system can be shortened and the efficiency of the system can be improved.This paper first introduces the theory of database cluster middleware technology and load balancing technology. Secondly, through the study of load balancing technology, the middleware load balancing module of database cluster is designed and implemented,which is based on the specific load balancing strategy. And then load balance module to test the performance and verify the performance of the load balancing algorithm.In this paper, we summarize the work of load balancing, and put forward the idea and idea of further improving the load balancing module.