NDLI: Tolerating client and communication failures in distributed groupware systems

Content Provider	IEEE Xplore Digital Library
Author	Hyong Sop Shim Prakash, A.
Copyright Year	1998
Description	Author affiliation: Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA (Hyong Sop Shim)
Abstract	If a groupware system is to be effectively used, especially over a wide area network such as the Internet, where the quality of networking and computing resources are unpredictable, it should allow clients to tolerate client, link, and server failures. In particular, clients should be able to join groups and transfer groups' current state in the presence of most client and link failures. In order to reduce usage overhead, disconnected clients should also be able to rejoin groups without having to restart from scratch. Furthermore, lock management and group membership should tolerate transient failures in the system. We introduce the notion of stateful group communication, which frees clients of administrative management of shared application state and allows fault tolerant group join, state transfer, and rejoin. Stateful group communication is incorporated in Corona, a general purpose, group communication service provider. In order to allow groups to tolerate transient failures, Corona also provides locks with grace period and group membership notification services that are based on client connection status. We present and discuss Corona's fault tolerant services.
Starting Page	221
Ending Page	227
File Size	77960
Page Count	7
File Format	PDF
ISBN	0818692189
ISSN	10609857
DOI	10.1109/RELDIS.1998.740501
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-10-20
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Collaborative software Collaborative work Network servers Computer crashes IP networks Computer networks Web server Hip Postal services Fault tolerant systems
Content Type	Text
Resource Type	Article
Subject	Theoretical Computer Science Computer Networks and Communications Software Hardware and Architecture

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