Verification of the Bully Election Algorithm for Distributed Systems Using TLA+ and PlusCal

Autor: Aleksey Polyakov, Elisey Nigodin, Elena Polupanova, Pavel Usov
Jazyk: ruština
Rok vydání: 2022
Předmět:
Zdroj: Современные информационные технологии и IT-образование, Vol 18, Iss 1, Pp 54-61 (2022)
Druh dokumentu: article
ISSN: 2411-1473
DOI: 10.25559/SITITO.18.202201.54-61
Popis: 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.
Databáze: Directory of Open Access Journals