Efficient Query Processing in Peer-to-Peer Environment

Abstract

Peer to Peer system extends ideas about distributed computing and client server computing, blurring the distinction between clients and servers. The P2P paradigm was recently adopted in the database community to overcome the limitations of distributed system, namely the static topology and the heavy administration work. XML databases are widely used for P2P system. Query processing over the P2P database faces many challenges and problems. This paper presents design and implementation of the distributed XQuery processing over P2P system. The system can dynamically execute distributed XQuery over the P2P system. Query processing is dynamic and designed to reduce network traffic because it only forwards partial results that are needed by the neighbor peer instead of every result. Each peer in the system has the query processing capabilities and its own catalog. This paper presents the design and implementation of the Peer–to-Peer query processing system using XML database. This system uses hotel and resort information system as a case study.