Low Cost Peer-to-Peer Collaborative Caching for Clusters

Abstract

Retrieving data from the memory of a remote computer is significantly faster than retrieving data from a remote storage device. Therefore, sharing caches among several computers can reduce the number of storage device access. In this paper, we propose a new collaboration scheme among clients in a computer cluster to share their caches with each other. The collaboration is designed based on peer-to-peer computing model. The scheme not only provides an easy to develop software architecture but also yields a near optimal performance with rea- sonably low overheads. Simulations are conducted to demonstrate the performance of the proposed scheme.