A content placement and management system for distributed Web-server systems

Clusters of commodity computers are becoming an increasingly popular approach for building cost-effective high-performance Internet servers. However, how to place and manage content in such a distributed and complex system is becoming a challenging problem. In particular, such distributed servers tend to be more heterogeneous, and this heterogeneity will further increase the management burden. This paper describes the motivation, design, implementation and performance of a content placement and management system for a heterogeneous distributed Web server.