Coordinated multimedia object replacement in transcoding proxies

Finding replacement candidates for accommodating a new object is an important research issue in web caching. Due to the new emerging factors in the transcoding proxy and the aggregate effect of caching multiple versions of the same multimedia object, this problem becomes more important and complex as audio and video applications have proliferated over the Internet, especially in the environment of mobile computing systems. This paper addresses coordinated cache replacement in transcoding proxies. First, we propose an original model which determines cache replacement candidates on all candidate nodes in a coordinated fashion with the objective of minimizing the total cost loss for linear topology. We formulate this problem as an optimization problem and present a low-cost optimal solution for deciding cache replacement candidates. Second, we extend this problem to solve the same problem for tree networks. Finally, we conduct extensive simulations to evaluate the performance of our solutions by comparing with existing models.

[1]  Kenneth L. Calvert,et al.  Modeling Internet topology , 1997, IEEE Commun. Mag..

[2]  Michael Dahlin,et al.  Cooperative caching: using remote client memory to improve file system performance , 1994, OSDI '94.

[3]  Jianliang Xu,et al.  Placement problems for transparent data replication proxy services , 2002, IEEE J. Sel. Areas Commun..

[4]  Philip S. Yu,et al.  Cooperative Architectures and Algorithms for Discovery and Transcoding of Multi-Version Content , 2003, WCW.

[5]  Gerhard Weikum,et al.  An optimality proof of the LRU-K page replacement algorithm , 1999, JACM.

[6]  Edward A. Fox,et al.  Removal Policies in Network Caches for World-Wide Web Documents , 1996, SIGCOMM.

[7]  Matthew Addison Blaze.  Caching in large-scale distributed file systems , 1993 .

[8]  Jeanna Neefe Matthews,et al.  Serverless network file systems , 1996, TOCS.

[9]  Philip S. Yu,et al.  Replication Algorithms in a Remote Caching Architecture , 1993, IEEE Trans. Parallel Distributed Syst..

[10]  Ming-Syan Chen,et al.  On Exploring Aggregate Effect for Efficient Cache Replacement in Transcoding Proxies , 2003, IEEE Trans. Parallel Distributed Syst..

[11]  Peter B. Danzig,et al.  A Hierarchical Internet Object Cache , 1996, USENIX ATC.

[12]  Keqiu Li,et al.  Optimal methods for coordinated enroute web caching for tree networks , 2005, TOIT.

[13]  Michael Dahlin,et al.  Design considerations for distributed caching on the Internet , 1999, Proceedings. 19th IEEE International Conference on Distributed Computing Systems (Cat. No.99CB37003).

[14]  Azer Bestavros,et al.  Temporal Locality in Web Request Streams , 2000 .

[15]  Hu Yuqi,et al.  Caching on the World Wide Web , 2003 .

[16]  Sandy Irani,et al.  Cost-Aware WWW Proxy Caching Algorithms , 1997, USENIX Symposium on Internet Technologies and Systems.

[17]  László Böszörményi,et al.  A survey of Web cache replacement strategies , 2003, CSUR.

[18]  Paul Barford,et al.  Generating representative Web workloads for network and server performance evaluation , 1998, SIGMETRICS '98/PERFORMANCE '98.

[19]  Peter Scheuermann,et al.  Proxy Cache Algorithms: Design, Implementation, and Performance , 1999, IEEE Trans. Knowl. Data Eng..

[20]  Jean Bacon,et al.  Distributed system for educational use , 1981, Comput. Commun..

[21]  Michael Dahlin,et al.  Coordinated Placement and Replacement for Large-Scale Distributed Caches , 2002, IEEE Trans. Knowl. Data Eng..

[22]  Keqiu Li,et al.  Coordinated enroute multimedia object caching in transcoding proxies for tree networks , 2005, TOMCCAP.

[23]  Lili Qiu,et al.  The content and access dynamics of a busy Web site: findings and implications , 2000 .

[24]  Li Fan,et al.  Web caching and Zipf-like distributions: evidence and implications , 1999, IEEE INFOCOM '99. Conference on Computer Communications. Proceedings. Eighteenth Annual Joint Conference of the IEEE Computer and Communications Societies. The Future is Now (Cat. No.99CH36320).

[25]  Prashant J. Shenoy,et al.  PTC: Proxies that Transcode and Cache in Heterogeneous Web Client Environments , 2004, World Wide Web.

[26]  Xueyan Tang,et al.  Coordinated En-Route Web Caching , 2002, IEEE Trans. Computers.

[27]  Sung-Ju Lee,et al.  Caching strategies in transcoding-enabled proxy systems for streaming media distribution networks , 2004, IEEE Transactions on Multimedia.

[28]  Amos Fiat,et al.  Distributed paging for general networks , 1996, SODA '96.

[29]  Philip S. Yu,et al.  A two-level distributed architecture for efficient Web content adaptation and delivery , 2005, The 2005 Symposium on Applications and the Internet.

[30]  Peter B. Danzig,et al.  The Harvest Information Discovery and Access System , 1995, Comput. Networks ISDN Syst..

[31]  Li Fan,et al.  Summary cache: a scalable wide-area web cache sharing protocol , 2000, TNET.

[32]  Marwan Krunz,et al.  An overview of web caching replacement algorithms , 2004, IEEE Communications Surveys & Tutorials.

[33]  Konstantinos Psounis,et al.  Efficient randomized web-cache replacement schemes using samples from past eviction times , 2002, TNET.