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Replication is a common technique used to design reliable distributed systems by masking defective components. To cope with the requirements of modern Internet applications, replication protocols must allow for throughput scalability and dynamic reconfiguration, that is, on-demand replacement or provisioning of system resources. This paper describes Elastic Paxos, a new dynamic atomic multicast protocol...
It has been shown that the highest throughput for broadcasting messages in a point-to-point network is achieved with a ring topology. Although several ring-based group communication protocols have benefited from this observation, broadcasting messages along a ring overlay may lead to high latencies: In a system with n processes, at least n-1 communication steps are necessary for all processes to deliver...
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