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1 Orange Labs Grenoble 2 CONVECS - Construction of verified concurrent systems Inria Grenoble - Rhône-Alpes, LIG - Laboratoire d-Informatique de Grenoble 3 ERODS - Efficient and Robust Distributed Systems LIG - Laboratoire d-Informatique de Grenoble, UJF - Université Joseph Fourier - Grenoble 1

Abstract : Cloud applications consist of a set of interconnected software elements distributed over several virtual machines, themselves hosted on remote physical servers. Most existing solutions for deploying such applications require human intervention to configure parts of the system, do not conform to functional dependencies among elements that must be respected when starting them, and do not handle virtual machine failures that can occur when deploying an application. This paper presents a self-deployment protocol that was designed to automatically configure a set of software elements to be deployed on different virtual machines. This protocol works in a decentralized way, i.e., there is no need for a centralized server. It also starts the software elements in a certain order, respecting important architectural invariants. This protocol supports virtual machine and network failures, and always succeeds in deploying an application when faced with a finite number of failures. Designing such highly parallel management protocols is difficult, therefore formal modeling techniques and verification tools were used for validation purposes. The protocol was implemented in Java and was used to deploy industrial applications.

Keywords : reliability robustness distributed applications software components automatic deployment





Autor: Xavier Etchevers - Gwen Salaün - Fabienne Boyer - Thierry Coupaye - Noel De Palma -

Fuente: https://hal.archives-ouvertes.fr/



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