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Appa

Atlas Peer-to-Peer Architecture

APPA is a data management system for large-scale P2P and Grid applications. The objective is to provide scalability, availability and performance for collaborative applications which must deal with semantically rich data (e.g. XML documents, relational tables, etc.) using a high-level SQL-like query language. APPA uses novel solutions to provide high level data management services (schema management, replication, query processing, resource discovery, load balancing, etc.) in large-scale distributed environments.

APPA components are released in Open Source Software.

APPA development site at GForge: http://appa.gforge.inria.fr/

Services available:

  • P2P Logging and Timestamping for Reconciliation (P2P-LTR)
  • P2P Testing Framework (PeerUnit)
  • Key-base TimeStamp Service (KTS)
  • Satisfaction-based Query Allocation Framework (SbQA)
  • Privacy Service for P2P Systems (PriServ)
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