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Atomic broadcast in particular, and group communication in general, have mainly been specified and implemented in a system model where processes do not recover after a crash. The model is called crash-stop. The drawback of this model is its inability to ex ...
In this paper, we present a performance comparison of database replication techniques based on total order broadcast. While the performance of total order broadcast-based replication techniques has been studied in previous papers, this paper presents many ...
We consider the consensus problem in self-organized networks such as MANETs. Consensus offers a means for reliably solving agreement related problems, which in a self-organized setting can help bring enhanced structure and reliability to the highly dynamic ...
In this paper we propose a novel location management scheme tailored for multicasting in Mobile Ad-hoc Networks (MANETs). We furthermore propose AMDLM, a location-based multicast algorithm relying on the location management service. Such an approach avoids ...
Performance Comparison of a Rotating Coordinator and a Leader Based Consensus Algorithm Peter Urban, Naohiro Hayashibara, Andre Schiper, and Takuya Katayama Protocols that solve agreement problems are essential building blocks for fault tolerant distribute ...
Peter Urban and Andre Schiper Comparing Distributed Consensus Algorithms Protocols that solve agreement problems are essential building blocks for fault tolerant distributed systems. While many protocols have been published, little has been done to analyze ...
Quorum systems (introduced in the late seventies) and atomic broadcast (introduced later) are two techniques to manage replicated data. Despite of the fact that these two techniques are now well known, the advantage of atomic broadcast over quorum systems ...
Designing and correctly implementing Group Communication Systems (GCSs) is notoriously difficult. Assuming that processes fail only by crashing provides a powerful means to simplify the theoretical development of these systems. When making this assumption, ...
In this paper, we address the problem of dynamic protocol update (DPU) that requires global coordination of local code replacements. We propose a novel approach to DPU. The key idea is the use of synchronization facilities of the services that get updated. ...
Comparing the Performance of Two Consensus Algorithms with Centralized and Decentralized Communication Schemes Peter Urban and Andre Schiper Protocols that solve agreement problems are essential building blocks for fault tolerant distributed systems. While ...
