<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>47</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Alfrânio Correia</style></author><author><style face="normal" font="default" size="100%">António Luis Sousa</style></author><author><style face="normal" font="default" size="100%">L. Soares</style></author><author><style face="normal" font="default" size="100%">José Orlando Pereira</style></author><author><style face="normal" font="default" size="100%">Francisco Moura</style></author><author><style face="normal" font="default" size="100%">Rui Oliveira</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Group-based replication of on-line transaction processing servers</style></title><secondary-title><style face="normal" font="default" size="100%">Proceedings of 2nd Latin-American Symposium on Dependable Computing (LADC)</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2005</style></year><pub-dates><date><style  face="normal" font="default" size="100%">October</style></date></pub-dates></dates><urls><related-urls><url><style face="normal" font="default" size="100%">https://haslab.uminho.pt/sites/default/files/rco/files/ladc05.pdf</style></url></related-urls></urls><publisher><style face="normal" font="default" size="100%">Springer</style></publisher><pub-location><style face="normal" font="default" size="100%">Salvador da Bahia, Brazil</style></pub-location><volume><style face="normal" font="default" size="100%">3747</style></volume><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Several techniques for database replication using group communication have recently been proposed, namely, the Database State Machine, Postgres- R, and the NODO protocol. Although all rely on a totally ordered multicast for consistency, they differ substantially on how multicast is used. This re- sults in different performance trade-offs which are hard to compare as each protocol is presented using a different load scenario and evaluation method. In this paper we evaluate the suitability of such protocols for replication of On-Line Transaction Processing (OLTP) applications in clusters of servers and over wide area networks. This is achieved by implementing them using a common infra-structure and by using a standard workload. The results allows us to select the best protocol regarding performance and scalability in a demanding but realistic usage scenario.&lt;/p&gt;
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