【摘要】 讨论了集群Web服务器的几种请求调度策略 ,针对现有的请求调度策略都是基于队列当前状态的调度 ,提出“预测最小连接优先”请求调度策略 .通过请求速率、服务器负载及队列的历史信息来预测未来队列的状态 ,然后根据预测队列的状态分配请求连接 ,从而有效地解决服务器间的负载不平衡更多还原

【Abstract】 A few request dispatching algorithms are discussed. To the problem of that these request dispatching algorithms are based on current status of queue, a new scheduling algorithm is proposed which is called forecasting least connections first scheduling algorithm. It forecasts the future status of queue by velocity of request,load of servers and historical information of queue, then dispatch request according to the future status of queue. It can effectively solve the load imbalance problem among the servers.更多还原