Active XML Replication and Recovery

Active XML (AXML) systems provide an elegant platform to integrate the power of XML, Web services and Peer to Peer (P2P) paradigms by allowing (active) Web service calls to be embedded within XML documents. In this work, we focus on the replication aspect of AXML systems, and study the effect of peer disconnection (an inherent trait of P2P systems) on replication. To be more precise, given peer disconnection for both eager and lazy replication strategies, we discuss the following: (a) the replication guarantees that can be provided and (b) recovery procedures for peer disconnection/reconnection.

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