Testing peertopeer systems

Authors: Eduardo Cunha de Almeida Gerson Sunyé Yves Le Traon Patrick Valduriez

Publish Date: 2009/12/09

Volume: 15, Issue: 4, Pages: 346-379

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Abstract

Peertopeer P2P offers good solutions for many applications such as large data sharing and collaboration in social networks Thus it appears as a powerful paradigm to develop scalable distributed applications as reflected by the increasing number of emerging projects based on this technology However building trustworthy P2P applications is difficult because they must be deployed on a large number of autonomous nodes which may refuse to answer to some requests and even leave the system unexpectedly This volatility of nodes is a common behavior in P2P systems and may be interpreted as a fault during tests ie failed node In this work we present a framework and a methodology for testing P2P applications The framework is based on the individual control of nodes allowing test cases to precisely control the volatility of nodes during their execution We validated this framework through implementation and experimentation on an opensource P2P system The experimentation tests the behavior of the system on different conditions of volatility and shows how the tests were able to detect complex implementation problems

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