NDLI: Semi-passive replication

Content Provider	IEEE Xplore Digital Library
Author	Defago, X. Schiper, A. Sergent, N.
Copyright Year	1998
Description	Author affiliation: Dept. d'Inf., Ecole Polytech. Fed. de Lausanne, Switzerland (Defago, X.)
Abstract	This paper presents the semi-passive replication technique, a variant of passive replication, that can be implemented in the asynchronous system model without requiring a membership service to agree on a primary. Passive replication is a popular replication technique since it can tolerate non-deterministic servers (e.g., multi-threaded servers) and uses little processing power when compared to other replication techniques. However, passive replication suffers from a high reconfiguration cost in case of the failure of the primary. The semi-passive replication technique presented in the paper benefits from the same advantages as passive replication. However, since it does not require a group membership service, semi-passive replication has a considerably lower cost in case of failure. As explained in the paper, this technique can benefit from an aggressive time-out value significantly lower than what a group membership allows. As a result, the reaction to crashes is greatly improved. The semi-passive replication algorithm uses failure detectors. The algorithm given in the paper is analysed in the failure free case and in the case of one server crash. The response time (for the client) of these two scenarios is analysed through simulation.
Starting Page	43
Ending Page	50
File Size	125144
Page Count	8
File Format	PDF
ISBN	0818692189
ISSN	10609857
DOI	10.1109/RELDIS.1998.740473
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	Read only memory Computer crashes Hip Costs Delay Redundancy Marine vehicles Fault tolerant systems Contracts Protocols
Content Type	Text
Resource Type	Article
Subject	Theoretical Computer Science Computer Networks and Communications Software Hardware and Architecture

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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