Schloss Dagstuhl - Leibniz-Zentrum für Informatik GmbH Schloss Dagstuhl - Leibniz-Zentrum für Informatik GmbH scholarly article en Freitas de Souza, Luciano; Kuznetsov, Petr; Rieutord, Thibault; Tucci-Piergiovanni, Sara https://www.dagstuhl.de/lipics License: Creative Commons Attribution 4.0 license (CC BY 4.0)
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URN: urn:nbn:de:0030-drops-158007
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Accountability and Reconfiguration: Self-Healing Lattice Agreement

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Abstract

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.

BibTeX - Entry

@InProceedings{freitasdesouza_et_al:LIPIcs.OPODIS.2021.25,
  author =	{Freitas de Souza, Luciano and Kuznetsov, Petr and Rieutord, Thibault and Tucci-Piergiovanni, Sara},
  title =	{{Accountability and Reconfiguration: Self-Healing Lattice Agreement}},
  booktitle =	{25th International Conference on Principles of Distributed Systems (OPODIS 2021)},
  pages =	{25:1--25:23},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-219-8},
  ISSN =	{1868-8969},
  year =	{2022},
  volume =	{217},
  editor =	{Bramas, Quentin and Gramoli, Vincent and Milani, Alessia},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/opus/volltexte/2022/15800},
  URN =		{urn:nbn:de:0030-drops-158007},
  doi =		{10.4230/LIPIcs.OPODIS.2021.25},
  annote =	{Keywords: Reconfiguration, accountability, asynchronous, lattice agreement}
}

Keywords: Reconfiguration, accountability, asynchronous, lattice agreement
Seminar: 25th International Conference on Principles of Distributed Systems (OPODIS 2021)
Issue date: 2022
Date of publication: 28.02.2022


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