分布式Web服务QoS注册中的高效负载均衡方法
doi: 10.3724/SP.J.1146.2008.00184
Efficient Load-Balance in Distributed QoS Registry for Web Service
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摘要: 该文提出了一种分布式Web服务QoS注册系统的负载均衡方法。提出了节点负载状态划分的概念。根据负载状态采用不同的负载信息散布策略,极大地减少了网络消耗。提出了基于简单协商的负载均衡方法。负载均衡用数据复制的方式,主要特点是在进行实际负载均衡操作以前即与复制目标节点进行协商,提出合理的复制需求,然后根据对方提供的资源情况,发起复制。提高了负载均衡的效率,降低了复制的盲目性。该方法在分布式Web服务QoS注册原型系统中进行了实验,达到了较好的效果。
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关键词:
- Web服务;QoS注册;负载均衡
Abstract: A load-balance approach in distributed QoS registry for Web service is proposed. According to peer load status, different load information dissemination policies are applied which significantly reduce network overhead. A load-balance approach based on simple negotiation protocol is proposed. The replication initiator proposes a rational proposal to replication receiver, then it replicates based on opponents offer. The approach improves efficiency of load-balance and reduces unnecessary replication attempt. The approach is tested on the prototype of distributed QoS registry and proved by experimental result.
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