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Safety ring: fault-tolerant distributed process execution in OSIRIS
| Content Provider | Semantic Scholar |
|---|---|
| Author | Stojnic, Nenad Schuldt, Heiko |
| Copyright Year | 2012 |
| Abstract | The advent of service-oriented architectures (SOAs) has strongly facilitated the development and deployment of large-scale distributed (serviceoriented) applications. The middleware for orchestrating process-based 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 a single point of failure. Self-healing execution of such processes supported by a distributed middleware requires replicated control metadata and instance data of processes. Most importantly, replication has to be provided in a way that does not affect the adaptivity and elasticity behavior of the middleware for composite service execution. In this technical report, we introduce OSIRIS Safety Ring, a novel approach to fault-tolerant process execution. Safety Ring is based on OSIRIS, a distributed and decentralized middleware for the execution of composite services. Essentially, the Safety Ring exploits dedicated node monitors, organized in a self-organizing ring structure, for the replication of control data. Moreover, it leverages virtual stable storage for managing process instance data in a robust way. We present the architecture of OSIRIS’ Safety Ring and discuss in detail the algorithms it applies for self-healing process execution. The performance evaluation shows that the additional gain in robustness has only marginal effects on the scalability characteristics of the system. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://cs-wwwarchiv.cs.unibas.ch/research/_Downloads/cs-2012-002.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
