Samuel Benz

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The rise of worldwide Internet-scale services demands large distributed systems. Indeed, when handling several millions of users, it is common to operate thousands of servers spread across the globe. Here, replication plays a central role, as it contributes to improve the user experience by hiding failures and by providing acceptable latency. In this work,(More)
This experience report presents the results of an extensive performance evaluation conducted using four open-source implementations of Paxos deployed in Amazon's EC2. Paxos is a fundamental algorithm for building fault-tolerant services, at the core of state-machine replication. Implementations of Paxos are currently used in many prototypes and production(More)
Currently the world maintains the voltage standard using a Josephson junction which makes use of the properties of superconductors and quantum tunneling. Current technology requires liquid He to cool the Josephson junctions to ~4 K to allow them to function as superconductors. He (l) is expensive and price is geographically dependent. Here we investigated(More)
This experience report presents the results of an extensive performance evaluation conducted using four opensource implementations of Paxos deployed in Amazon’s EC2. Paxos is a fundamental algorithm for building fault-tolerant services, at the core of state-machine replication. Implementations of Paxos are currently used in many prototypes and production(More)
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(More)
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