A Flexible Architecture for a Push-based P2P Database
Cristian Pérez de Laborda, Christopher Popfinger · 2008
Originally developed for file sharing, P2P concepts are predestinated to realize information sharing in a more general way. Combined with the well known concept of loosely coupled multidatabases they provide a promising fundament for sharing data and metadata across autonomous and heterogenous data sources. The Dígame architecture allows each participating data source to decide autonomously, which kind of information to share. Data and schema updates on these shares are propagated actively to subscribing peers, without having to be managed by a central authority. Each peer is now able to maintain a replica of all the data demanded locally, regardless of where the data is stored originally. In this context we have identified several link patterns, indispensable for understanding and designing an information grid. 1