...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of industrial and management optimization >PERFORMANCE ANALYSIS OF A P2P STORAGE SYSTEM WITH A LAZY REPLICA REPAIR POLICY
【24h】

PERFORMANCE ANALYSIS OF A P2P STORAGE SYSTEM WITH A LAZY REPLICA REPAIR POLICY

机译：具有延迟副本修复策略的P2P存储系统的性能分析

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Peer-to-Peer (P2P) storage systems are a prevalent and important mode for implementing cost-efficient, large-scale distributed storage. Considering the random departure feature of the peers and the diverse popularity of the data objects, a proper number of replicas needs to be maintained, and a reasonable trigger threshold of replica repair needs to be set for high data availability and low system overhead. In this paper, based on the working principle of the lazy replica repair policy in a P2P storage system, a three-dimensional Markov chain model is constructed, and the model is analyzed in steady-state by using a matrix-geometric method. Then, the performance measures in terms of the availability of one data object, the average access latency, and the replication rate are given. Moreover, numerical results with analysis are provided to demonstrate how system parameters such as the replica number and the replica repair instant influence the system performance. Finally, we develop benefit functions to optimize the replica number and the repair trigger threshold.
机译：对等（P2P）存储系统是用于实现经济高效的大规模分布式存储的一种普遍且重要的模式。考虑到对等方的随机离开特征和数据对象的广泛普及性，需要维护适当数量的副本，并且需要为高数据可用性和低系统开销设置合理的副本修复触发阈值。本文基于P2P存储系统中的惰性副本修复策略的工作原理，构建了三维马尔可夫链模型，并采用矩阵几何方法对模型进行了稳态分析。然后，根据一个数据对象的可用性，平均访问延迟和复制率，给出了性能度量。此外，提供了带有分析的数值结果，以演示系统参数（例如副本数和副本修复即时）如何影响系统性能。最后，我们开发了收益函数来优化副本数和修复触发阈值。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号