基于竞标模式和访问热度的副本创建策略

研究典型数据副本创建策略，提出一种以节点在线率和节点存储能力作为价格的竞标模型副本创建策略。根据对基于访问热度的典型副本创建策略和基于竞标模型的典型副本创建策略的具体分析，改进典型副本创建策略对节点性能考虑的单一性，综合考虑节点的访问热度和负载等性能，实现基于竞标模式和访问热度相结合的副本创建策略。并通过基于网络带宽利用率和系统响应时间的实验，将该副本创建策略与两种典型副本创建策略进行实验对比，验证提出的基于竞标模式和访问热度的副本创建策略具有较好的性能。

Replica Creation Strategy Based on Bid Pattern and Accession Heat

Discusses typical strategy proposes of data replica creation, delivers a replication creation strategy that takes online rate and storage abili-ty of the node as “price”. Based on a detailed analysis of traditional creation strategy on visitation frequency and typical replica strategy on bid creation, improves the unity of consideration on node performance, considers the performance of node visitation frequency and load, and achieves data creation strategy on a combination of bid pattern and visitation frequency. Through experiments on web bandwidth utilization and system response time, article replica creation strategy and experimentaly compares two typical replica creation strategies to verify better performance of replica creation strategy on bid pattern and visitation frequency proposed.