2026-07-25T02:25:11Z https://drops.dagstuhl.de/oai

oai:drops-oai.dagstuhl.de:15800 2024-03-06T10:56:12Z ddc:004 open_access

Accountability and Reconfiguration: Self-Healing Lattice Agreement Freitas de Souza, Luciano Kuznetsov, Petr Rieutord, Thibault Tucci-Piergiovanni, Sara Reconfiguration accountability asynchronous lattice agreement An accountable distributed system provides means to detect deviations of system components from their expected behavior. It is natural to complement fault detection with a reconfiguration mechanism, so that the system could heal itself, by replacing malfunctioning parts with new ones. In this paper, we describe a framework that can be used to implement a large class of accountable and reconfigurable replicated services. We build atop the fundamental lattice agreement abstraction lying at the core of storage systems and cryptocurrencies. Our asynchronous implementation of accountable lattice agreement ensures that every violation of consistency is followed by an undeniable evidence of misbehavior of a faulty replica. The system can then be seamlessly reconfigured by evicting faulty replicas, adding new ones and merging inconsistent states. We believe that this paper opens a direction towards asynchronous "self-healing" systems that combine accountability and reconfiguration. Schloss Dagstuhl – Leibniz-Zentrum für Informatik Luciano Freitas de Souza and Petr Kuznetsov and Thibault Rieutord and Sara Tucci-Piergiovanni 2022 Is Part Of LIPIcs, Volume 217, 25th International Conference on Principles of Distributed Systems (OPODIS 2021) InProceedings Text doc-type:ResearchArticle publishedVersion application/pdf doi:10.4230/LIPIcs.OPODIS.2021.25 urn:nbn:de:0030-drops-158007 https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.OPODIS.2021.25 eng https://creativecommons.org/licenses/by/4.0/legalcode