Improving the Elasticity of Services with a P2P Infrastructure

Abstract

Web Services (WS) are one of the most popular approaches for building distributed systems due to their widespread acceptance within industry and academia, established and open standards, a wealth of development tools/infrastructures (e.g. Apache Axis [1]), and maybe most importantly the number of successful deployments. A key issue in the deployment of WS is the elasticity of services e.g. their ability to respond to changes in the demand by dynamically adding or removing WS provider nodes. This paper presents a novel P2P based management approach for WS providers, that allows organizations to dynamically add or remove replicated providers at runtime and thus increases their elasticity. Unlike the current centralized approaches, this scalable P2P approach allows for a fully distributed and fault-tolerant management of replicated provider and thus enables organizations to respond faster to changes in WS consumer behavior.