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Summary: Technical Report CNDS-2002-1 Johns Hopkins University, http://www.cnds.jhu.edu/publications
Practical Wide-Area Database Replication1
Yair Amir*
, Claudiu Danilov*
, Michal Miskin-Amir
, Jonathan Stanton*
, Ciprian Tutu*
*
Johns Hopkins University
Spread Concepts LLC
Department of Computer Science 5305 Acacia Ave
Baltimore MD 21218 Bethesda MD 20814
{yairamir, claudiu, jonathan, ciprian}@cnds.jhu.edu michal@spreadconcepts.com
Abstract
This paper explores the architecture, implementation and performance of a wide and
local area database replication system. The architecture provides peer replication,
supporting diverse application semantics, based on a group communication paradigm.
Network partitions and merges, computer crashes and recoveries, and message omissions
are all handled. Using a generic replication engine and the Spread group communication
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