Telex: Principled System Support for Write-Sharing in Collaborative Applications

Lamia Benmouffok; Jean-Michel Busca; Joan Manuel Marquès; Marc Shapiro; Pierre Sutra; Georgios Tsoukalas

inria-00281329, version 2

Telex: Principled System Support for Write-Sharing in Collaborative Applications

Lamia Benmouffok ^1, 2, Jean-Michel Busca ( Auteur à contacter de préférence ) ^1, 2, Joan Manuel Marquès ^2, 3, Marc Shapiro () ^1, 2, Pierre Sutra ^1, 2, Georgios Tsoukalas ⁴

N° RR-6546 (2008)

Résumé : The Telex system is designed for sharing mutable data in a distributed environment, particularly for collaborative applications. Users operate on their local, persistent replica of shared documents; they can work disconnected and suffer no network latency. The Telex approach to detect and correct conflicts is application independent, based on an action-constraint graph (ACG) that summarises the concurrency semantics of applications. The ACG is stored efficiently in a multilog structure that eliminates contention and is optimised for locality. Telex supports multiple applications and multi-document updates. The Telex system clearly separates system logic (which includes replication, views, undo, security, consistency, conflicts, and commitment) from application logic. An example application is a shared calendar for managing multi-user meetings; the system detects meeting conflicts and resolves them consistently.

1 : REGAL (INRIA Paris-Rocquencourt)
INRIA – CNRS : UMR7606 – Université Pierre et Marie Curie (UPMC) - Paris VI
2 : Laboratoire d'Informatique de Paris 6 (LIP6)
CNRS : UMR7606 – Université Pierre et Marie Curie (UPMC) - Paris VI
3 : Universitat Oberta de Catalunya [Barcelona] (UOC)
Universitat Oberta de Catalunya
4 : National Technical University of Athens [Athens] (NTUA)
National Technical University of Athens

Collaboration : Grid4All

inria-00281329, version 2
http://hal.inria.fr/inria-00281329
oai:hal.inria.fr:inria-00281329
Contributeur : Marc Shapiro <>
Soumis le : Jeudi 5 Juin 2008, 10:45:17
Dernière modification le : Mardi 10 Juin 2008, 09:13:13

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arXiv : 0805.4680

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%% inria-00281329, version 2
%% http://hal.inria.fr/inria-00281329
@techreport{benmouffok:inria-00281329,
    hal_id = {inria-00281329},
    url = {http://hal.inria.fr/inria-00281329},
    title = {{Telex: Principled System Support for Write-Sharing in Collaborative Applications}},
    author = {Benmouffok, Lamia and Busca, Jean-Michel and Manuel Marqu{\`e}s, Joan and Shapiro, Marc and Sutra, Pierre and Tsoukalas, Georgios},
    abstract = {{The Telex system is designed for sharing mutable data in a distributed environment, particularly for collaborative applications. Users operate on their local, persistent replica of shared documents; they can work disconnected and suffer no network latency. The Telex approach to detect and correct conflicts is application independent, based on an action-constraint graph (ACG) that summarises the concurrency semantics of applications. The ACG is stored efficiently in a multilog structure that eliminates contention and is optimised for locality. Telex supports multiple applications and multi-document updates. The Telex system clearly separates system logic (which includes replication, views, undo, security, consistency, conflicts, and commitment) from application logic. An example application is a shared calendar for managing multi-user meetings; the system detects meeting conflicts and resolves them consistently.}},
    keywords = {distributed systems; data replication; optimistic replication; collaborative work; disconnected operation; data consistency; eventual consistency; distributed file systems; read-write sharing; logs; multi-logs; action-constraint graph},
    language = {Anglais},
    affiliation = {REGAL - INRIA Paris-Rocquencourt , Laboratoire d'Informatique de Paris 6 - LIP6 , Universitat Oberta de Catalunya [Barcelona] - UOC , National Technical University of Athens [Athens] - NTUA},
    pages = {31},
    type = {Rapport de recherche},
    institution = {INRIA},
    number = {RR-6546},
    collaboration = {Grid4All },
    year = {2008},
    pdf = {http://hal.inria.fr/inria-00281329/PDF/Telex-principled-RR-6546-2008-06.pdf, http://hal.inria.fr/inria-00281329/PDF/rr.pdf},
}

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