Storage and Retrieval of XML Data in Structured P2P Network with Load Balancing
Chunhui Wu, Toshiyuki Amagasa, Hiroyuki Kitagawa · 2007
Recently, there have been extensive work on information management in P2P environments. In such systems, XML (Extensible Markup Language) plays an important role for data description and exchange, and XML data management in P2P networks is an important issue, consequently. For this reason, we have proposed a method for storage and retrieval of XML data using Distributed Hash Table (DHT). However, it has a drawback that storage-load distribution is skewed, because it uses element names as the hash keys. To cope with this problem, in this paper, we propose a scheme for storage-load balancing based on extendible hashing. Specifically, for each peer, we redistribute overflowed data to other peers by extendible hashing. We also show the feasibility of the proposed method by experimental evaluations.