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OSIRIS-SR: A Safety Ring for self-healing distributed composite service execution

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2 Author(s)
Stojnic, N. ; Dept. of Math. & Comput. Sci., Univ. of Basel, Basel, Switzerland ; Schuldt, H.

The advent of service-oriented architectures has strongly facilitated the development and deployment of large-scale distributed applications. The middleware for orchestrating applications that consist of several distributed services has to be inherently distributed as well, in order to provide a high degree of scalability and to avoid any single point of failure. Self-healing execution of composite services requires replicated control metadata and instance data in a way that does not affect adaptivity and elasticity of the middleware. In this paper, we present OSIRIS-SR, a decentralized approach to self-healing composite service execution in a distributed environment. OSIRIS-SR exploits dedicated node monitors, organized in a self-organizing Safety Ring, for the replication of control data. Moreover, OSIRIS-SR leverages virtual stable storage for managing composite service instance data in a robust way. We present the architecture of OSIRIS-SR's Safety Ring and discuss how it provides self-healing composite service execution. The performance evaluation shows that the additional gain in robustness has only marginal effects on the scalability characteristics of the system.

Published in:

Software Engineering for Adaptive and Self-Managing Systems (SEAMS), 2012 ICSE Workshop on

Date of Conference:

4-5 June 2012

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