1. Verification of the Bully Election Algorithm for Distributed Systems Using TLA+ and PlusCal
- Author
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Aleksey Polyakov, Elisey Nigodin, Elena Polupanova, and Pavel Usov
- Subjects
coordinator election algorithm ,leader election algorithm ,bully algorithm ,distributed systems ,distributed computing ,formal verification ,specification language ,temporal logic ,model checking ,tla+ ,pluscal ,tlc ,ltl ,Electronic computers. Computer science ,QA75.5-76.95 - Abstract
This article is devoted to verification of the bully election algorithm for distributed systems with TLA+ and PlusCal. In this work, we show an overview of the basic information about distributed systems, then we show definition of election algorithms for distributed systems, after that we provide a full description of the bully election algorithm for distributed systems. Later in this article, we show the model of the distributed algorithm created with TLA+ and PlusCal. Then we describe the main parts of this model. Next, we illustrate results of verification of this model. The verification was done using TLC ‒ a model checker and simulator for executable TLA+ specifications. As a result of the verification, it was possible to establish that the declared properties of safety and liveness are fully satisfied for all possible states of the system.
- Published
- 2022
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