<?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%">Jon Grov</style></author><author><style face="normal" font="default" size="100%">L. Soares</style></author><author><style face="normal" font="default" size="100%">Alfrânio Correia</style></author><author><style face="normal" font="default" size="100%">José Orlando Pereira</style></author><author><style face="normal" font="default" size="100%">Rui Oliveira</style></author><author><style face="normal" font="default" size="100%">Fernando Pedone</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">A pragmatic protocol for database replication in interconnected clusters</style></title><secondary-title><style face="normal" font="default" size="100%">Proceedings of 12th Pacific Rim International Symposium on Dependable Computing (PRDC)</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2006</style></year><pub-dates><date><style  face="normal" font="default" size="100%">December</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/10.1.1.190.3848.pdf</style></url></related-urls></urls><pub-location><style face="normal" font="default" size="100%">Riverside</style></pub-location><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Multi-master update everywhere database replication, as achieved by protocols based on group communication such as DBSM and Postgres-R, addresses both performance and availability. By scaling it to wide area networks, one could save costly bandwidth and avoid large round-trips to a distant master server. Also, by ensuring that updates are safely stored at a remote site within transaction boundaries, disaster recovery is guaranteed. Unfortunately, scaling ex- isting cluster based replication protocols is troublesome. In this paper we present a database replication proto- col based on group communication that targets intercon- nected clusters. In contrast with previous proposals, it uses a separate multicast group for each cluster and thus does not impose any additional requirements on group commu- nication, easing implementation and deployment in a real setting. Nonetheless, the protocol ensures one-copy equiv- alence while allowing all sites to execute update transac- tions. Experimental evaluation using the workload of the industry standard TPC-C benchmark confirms the advan- tages of the approach.&lt;/p&gt;
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