Reliable Partial Replication of Contents in Web Clusters: Getting Storage without losing Reliability
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| Title | Reliable Partial Replication of Contents in Web Clusters: Getting Storage without losing Reliability |
| Authors | |
| Abstract | Traditionally, distributed Web servers have used two strategies for allocating files on server nodes: full replication and full distribution. While full replication provides a highly reliable solution, it limits storage capacity to the capacity of the smallest node. On the other hand, full distribution provides higher storage capacity at the cost of lower reliability. A hybrid solution is partial replication where every file is allocated to a small number of nodes. The most promising architecture for a partial replication strategy is the Web cluster architecture. However, Web clusters present a big flaw from reliability perspective as they contain a single point of failure. To correct this flaw, in this paper we present a modified architecture: the Web cluster with distributed Web switch. Reliability of Web clusters is evaluated for different replication strategies. System evaluations show that our proposal leads to a highly reliable solution with high scalability. |
| Publisher | ACADEMY PUBLISHER |
| Date | 2006-11-01 |
| Source | Journal of Computers Vol 1, No 7 (2006) |
| Rights | Copyright © ACADEMY PUBLISHER - All Rights Reserved.To request permission, please check out URL: http://www.academypublisher.com/copyrightpermission.html. |