Summary cache: a scalable wide-area Web cache sharing protocol
Proceedings of the ACM SIGCOMM '98 conference on Applications, technologies, architectures, and protocols for computer communication
Piggyback server invalidation for proxy cache coherency
WWW7 Proceedings of the seventh international conference on World Wide Web 7
The content and access dynamics of a busy Web site: findings and implications
Proceedings of the conference on Applications, Technologies, Architectures, and Protocols for Computer Communication
Adaptive Push-Pull: Disseminating Dynamic Web Data
IEEE Transactions on Computers
On the accuracy of MANET simulators
Proceedings of the second ACM international workshop on Principles of mobile computing
Replicating the Contents of a WWW Multimedia Repository to Minimize Download Time
IPDPS '00 Proceedings of the 14th International Symposium on Parallel and Distributed Processing
A Dynamic Object Replication and Migration Protocol for an Internet Hosting Service
ICDCS '99 Proceedings of the 19th IEEE International Conference on Distributed Computing Systems
Design and evaluation of a continuous consistency model for replicated services
OSDI'00 Proceedings of the 4th conference on Symposium on Operating System Design & Implementation - Volume 4
Rate of change and other metrics: a live study of the world wide web
USITS'97 Proceedings of the USENIX Symposium on Internet Technologies and Systems on USENIX Symposium on Internet Technologies and Systems
Object replication strategies in content distribution networks
Computer Communications
Insight and perspectives for content delivery networks
Communications of the ACM - Personal information management
Modelling and evaluation of CCN-caching trees
NETWORKING'11 Proceedings of the 10th international IFIP TC 6 conference on Networking - Volume Part I
Review: A survey on content-centric technologies for the current Internet: CDN and P2P solutions
Computer Communications
Probabilistic in-network caching for information-centric networks
Proceedings of the second edition of the ICN workshop on Information-centric networking
| Hi-index | 0.00 |
This paper discusses replica management strategies for cost-effective, scalable Web content distribution. In terms of the granularity of replica contents, current dynamic replication approaches can be classified into entire replication (entire content is replicated) and object replication (individual objects are replicated) schemes. However, while the former cannot effectively reduce client download time and server load due to the coarsest replication granularity, the latter requires a large overhead to manage replica locations due to per-object request redirection. We propose schemes to deliver almost as effective performance to reduce download time and server load as in the object replication scheme while they require almost as small overhead to manage replica locations as the entire replication scheme. The schemes aggregate objects in the origin server into multiple content groups, and then replicate them on per-group granularity. Per-group request redirection can significantly reduce an overhead to manage replica locations. The content groups are either statically created in advance or dynamically created upon replication. The approach of dynamic grouping uses a URL rewriting technique to enable per-group request redirection. We evaluate the performance to reduce download time and server load in the proposed schemes changing the number of created content groups. The scheme of dynamic group creation achieves almost the same performance characteristic to reduce download time as the object replication scheme with a significantly smaller overhead to manage replica locations. Even the scheme of static group creation provides much better performance than entire replication under a skewed request distribution. The proposed scheme, which addresses URL inconsistency problems derived from the URL rewriting, preserves high download time reduction performance with insignificant overhead of replica management.