Safety Property
From Handwiki In distributed computing, safety properties informally require that "something bad will never happen" in a distributed system or distributed algorithm.[1][2] In a database system, a promise to never return data with null fields is an example of a safety guarantee.[3] Another example is that of deadlock freedom—it should never occur that all processes or a distributed system are unable to continue because they are waiting for action from another process.[4] Safety properties are types of linear time properties studied in the area of model checking, along with liveness properties.[4] Unlike liveness properties, if a safety property is violated there is always a finite execution that shows the violation. All properties can be expressed as the intersection of safety and liveness properties.[3]
See also
- Safety and liveness properties
References
- ↑ Rodrigues, Christian Cachin; Rachid Guerraoui; Luís (2010). Introduction to reliable and secure distributed programming (2. ed.). Berlin: Springer Berlin. pp. 22–24. ISBN 978-3-642-15259-7.
- ↑ Lamport, L. (1977). "Proving the Correctness of Multiprocess Programs". IEEE Transactions on Software Engineering (2): 125–143. doi:10.1109/TSE.1977.229904.
- ↑ 3.0 3.1 Alpern, B.; Schneider, F. B. (1987). "Recognizing safety and liveness". Distributed Computing 2 (3): 117. doi:10.1007/BF01782772.
- ↑ 4.0 4.1 Baier, Christel; Katoen, Joost-Pieter (2008). Principles of Model Checking. MIT Press. p. 104. ISBN 9780262026499.
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Categories: [Distributed computing]
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