分布式web系统负载均衡性研究

Load Balancing in Distributed Web System

随着现代企业业务流程需求的复杂化、频繁化、重要化,对Web系统的发展提出了更为严峻的考验,WfMC提出的分布式工作流系统是计算机领域的研究热点问题。针对目前分布式系统工作流引擎的负载均衡问题,通过负载更新自身信息表,管理员实时汇总各节点负载信息表,均衡调度节点负载,解决了在异构环境下单节点负载过重的问题,改进后的调度策略比传统的轮询调度算法、随机法更能保证系统负载的均衡性。

The increasing complexity, frequency and importance of modern enterprise busines process demand exerts a more severe test on the development of Web system. The distributed workflow system proposed by WfMC is a hot topic in computer research field. For the load balancing of distributed systems workflow engine, through the load updating its own information table, the administrator gathering real-time load information tables of various nodes and implementing the balanced scheduling of node load, the problem of overloading single node in a heterogeneous environment is solved, and the improved scheduling algorithm, compared with traditional round-robin scheduling algorithm and stochastic algorithm, could better ensure the system load balancing.