• Towards choreographic-based mo...

Treffer: Towards choreographic-based monitoring ; Reversible Computation: Extending Horizons of Computing. RC 2020. Lecture Notes in Computer Science, vol 12070

Title:
Towards choreographic-based monitoring ; Reversible Computation: Extending Horizons of Computing. RC 2020. Lecture Notes in Computer Science, vol 12070
Authors:
Francalanza, Adrian, Mezzina, Claudio Antares, Tuosto, Emilio, International Conference on Reversible Computation, RC 2020
Publisher Information:
Springer
Publication Year:
2020
Collection:
University of Malta: OAR@UM / L-Università ta' Malta
Subject Terms:
ERLANG (Computer program language), Computer programs, Object monitors (Computer software), Computer logic, Computer software -- Monitoring
Document Type:
Konferenz conference object
Language:
English
Relation:
https://www.um.edu.mt/library/oar/handle/123456789/86061
DOI:
10.1007/978-3-030-47361-7_6
Availability:
https://www.um.edu.mt/library/oar/handle/123456789/86061
https://doi.org/10.1007/978-3-030-47361-7_6
Rights:
info:eu-repo/semantics/openAccess ; The copyright of this work belongs to the author(s)/publisher. The rights of this work are as defined by the appropriate Copyright Legislation or as modified by any successive legislation. Users may access this work and can make use of the information contained in accordance with the Copyright Legislation provided that the author must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the prior permission of the copyright holder.
Accession Number:
edsbas.A6B54848
Database:
BASE

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Distributed programs are hard to get right because they are required to be open, scalable, long-running, and dependable. In particular, the recent approaches to distributed software based on (micro-) services, where different services are developed independently by disparate teams, exacerbate the problem. Services are meant to be composed together and run in open contexts where unpredictable behaviours can emerge. This makes it necessary to adopt suitable strategies for monitoring the execution and incorporate recovery and adaptation mechanisms so to make distributed programs more flexible and robust. The typical approach that is currently adopted is to embed such mechanisms within the program logic. This makes it hard to extract, compare and debug. We propose an approach that employs formal abstractions for specifying failure recovery and adaptation strategies. Although implementation agnostic, these abstractions would be amenable to algorithmic synthesis of code, monitoring, and tests. We consider message-passing programs (a la Erlang, Go, or MPI) that are gaining momentum both in academia and in industry. We first propose a model which abstracts away from three aspects: the definition of formal behavioural models encompassing failures; the specification of the relevant properties of adaptation and recovery strategy; and the automatic generation of monitoring, recovery, and adaptation logic in target languages of interest. To show the efficacy of our model, we give an instance of it by introducing reversible choreographies to express the normal forward behaviour of the system and the condition under which adaptation has to take place. Then we show how it is possible to derive Erlang code directly from the global specification. ; Research partly supported by the EU H2020 RISE programme under the Marie Skłodowska-Curie grant agreement No 778233 and by COST Action IC1405 on Reversible Computation - Extending Horizons of Computing. The second author has been partially supported by the French National Research ...