[1]宋晓华,黄河清,曹元大.基于用户访问统计特性的流媒体文件复制策略[J].南京理工大学学报(自然科学版),2007,(05):617-621.
 SONG Xiao-hua,HUANG He-qing,CAO Yuan-da.Media File Replication Strategy Based on Access Statistics[J].Journal of Nanjing University of Science and Technology,2007,(05):617-621.
点击复制

基于用户访问统计特性的流媒体文件复制策略
分享到:

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
期数:
2007年05期
页码:
617-621
栏目:
出版日期:
2007-10-30

文章信息/Info

Title:
Media File Replication Strategy Based on Access Statistics
作者:
宋晓华1 黄河清2 曹元大1
1. 北京理工大学计算机科学技术学院, 北京100081; 2. 华北电网电力调度通信中心, 北京100053
Author(s):
SONG Xiao-hua1HUANG He-qing2CAO Yuan-da1
1.School of Computer Science and Technology,Beijing Institute of Technology,Beijing 100081,China;2.North China Power Dispatching Transaction Center,Beijing 100053,China
关键词:
服务器集群 Zipf分布 文件复制 副本创建 负载均衡
Keywords:
clusters Zipf d istribut ion file replicat ion replica creat ion load ba lance
分类号:
TN919.8
摘要:
该文采用数理统计方法,根据用户访问统计特性预测文件流行度,结合文件自身属性,确定副本生成数量;针对不同流媒体服务器资源属性,采用动态区间映射方法进行副本放置。实验表明,基于用户访问统计特性的文件复制策略,提高了系统服务性能,保证了系统的负载均衡。
Abstract:
This paper uses statistica lmethod to pred ict the popu larity of the files based on the access statistics and decides on the number o f the replicas according to the popu larity and the attributes of the file. Tak ing the attributes o f different servers into accoun,t the rep lica is placed on the co rresponding servers by themeans of dynam ic intervalmapping. The exper imenta l results show that th is replication strategy improves the performance and assures the load balance.

参考文献/References:

[ 1] Jonathan D, Jerem y G. Dynam ic repacking: a content replication policy fo r c lustered m ultim edia servers [ R ]. Dublin: T rin ity Co llege Dublin Computer Sc-i ence Departm ent Techn ica l Reports TCD - CS - 2002 - 36, 2002.
[ 2] X iao Bozhou, Cheng Zhongxu. Optim a l v ideo rep lication and p lacement on a cluster o f v ideo on dem and servers [ A ]. Proceed ing s o f the 2002 Inte rnational Conference on Pa ra lle l Processing [ C ]. London: The 2002 Inte rnational Conference on Paralle l Process ing, 2002. 238- 247.
[ 3] A lex F B. Fundam enta ls o f theM onte Carlom ethod for neutra l and charged particle transpo rt [M ]. M ich igan: The University ofM ich igan Press, 2001.
[ 4] M atsum otoM, N ishim ura T. M ersenne Tw ister: A 623- dim ensionally equ-i distributed un iform pseudorandom number genera to r [ A ]. Proceed ings of the ACM Trans onM ode ling and Computer [ C]. Syndney: ACM Trans onM ode ling and Computer, 1998. 195- 203.
[ 5] http: / /www. powe rec. net/m arke tp lace / shuzitushuguan/ bzsjk. html .

备注/Memo

备注/Memo:
作者简介: 宋晓华( 1981- ) , 女, 陕西咸阳人, 博士生, 主要研究方向: 分布式流媒体, E-mail: songxh6666@ sina. com. cn。
更新日期/Last Update: 2007-10-30