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Agreement-related problems

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Contention-Aware Metrics for Distributed Algorithms: Comparison of Atomic Broadcast Algorithms

André Schiper, Xavier Défago

Contention-Aware Metrics for Distributed Algorithms: Comparison of Atomic Broadcast Algorithms Peter Urban, Xavier Defago and Andre Schiper Resource contention is widely recognized as having a major impact on the performance of distributed algorithms. Neve ...

2000

Failure Detectors: implementation issues and impact on consensus performance

André Schiper, Xavier Défago, Nicoleta Sergent

Due to their nature, distributed systems are vulnerable to failures of some of their parts. Conversely, distribution also provides a way to increase the fault tolerance of the overall system. However, achieving fault tolerance is not a simple problem and r ...

1999

The database state machine and group communication issues

Fernando Pedone

Distributed computing is reshaping the way people think about and do daily life activities. On-line ticket reservation, electronic commerce, and telebanking are examples of services that would be hardly imaginable without distributed computing. Nevertheles ...

EPFL1999

Using Optimistic Atomic Broadcast in Transaction Processing Systems

André Schiper, Fernando Pedone

Atomic broadcast primitives are often proposed as a mechanism to allow fault-tolerant cooperation between sites in a distributed system. Unfortunately, the delay incurred before a message can be delivered makes it difficult to implement high performance, s ...

1999

Transparent Replication for Fault Tolerance in Distributed Ada 95

In this paper we present the foundations of Rapids ("Replicated Ada Partitions In Distributed Systems"), an implementaion of the PCS supporting the transparent replication of partitions in distributed Ada 95 using semi-active replication. The inherently no ...

ACM Press1999

Replicating CORBA Objects: a marriage between active and passive replication

André Schiper, Patrick Eugster, Xavier Défago

Replication is a key mechanism for developing fault-tolerant and highly available applications. In this paper, we present a replication framework for replicating CORBA objects, that combines the active and passive replication techniques. We show how we hav ...

1999

Fault Tolerance by Transparent Replication for Distributed Ada 95

This paper presents the foundations of Rapids ("Replicated Ada Partitions In Distributed Systems"), an implementation of the Distributed Systems Annex E incorporating the transparent replication of partitions in distributed Ada 95 applications. Rapids is a ...

Springer Verlag1999

Soft real-time analysis of asynchronous agreement algorithms using Petri nets

Nicoleta Sergent

A distributed algorithm comprises a collection of sequential-code entities, which are spread over different computers connected to a network. The process of designing a distributed algorithm is influenced by the assumptions we make on the computational env ...

EPFL1998

Semi-Passive Replication

André Schiper, Xavier Défago, Nicoleta Sergent

This paper presents the semi-passive replication technique -- a variant of passive replication -- that can be implemented in the asynchronous system model without requiring a membership service to agree on a primary. Passive replication is a popular replic ...

1998

Semi-Passive Replication

André Schiper, Xavier Défago, Nicoleta Sergent

This paper presents the semi-passive replication technique -- a variant of passive replication -- that can be implemented in the asynchronous system model without requiring agreement on a primary (usually done using a membership service). Passive replicati ...

1998