TY - GEN
T1 - Possibility and the complexity of achieving fault-tolerant coordination
AU - Bazzi, Rida
AU - Neiger, Gil
PY - 1992/12/1
Y1 - 1992/12/1
N2 - The problem of fault-tolerant coordination is fundamental in distributed computing. In the past, researchers have considered two types of coordination: general coordination, in which the actions of faulty processors are irrelevant, and consistent coordination, in which the faulty processors are forbidden from acting inconsistently. This paper studies the possibility and complexity of achieving coordination in synchronous and asynchronous systems with crash, send-omission, and general omission failures. We indicate the systems in which coordination cannot be achieved and, when it can, analyze the computational complexity of optimally achieving it. In some cases, optimum solutions can be implemented in polynomial time, while in others they require NP-hard local computation. These results provide a thorough characterization of coordination and will thus aid researchers in determining the approach to take when attempting to achieve fault-tolerant coordination.
AB - The problem of fault-tolerant coordination is fundamental in distributed computing. In the past, researchers have considered two types of coordination: general coordination, in which the actions of faulty processors are irrelevant, and consistent coordination, in which the faulty processors are forbidden from acting inconsistently. This paper studies the possibility and complexity of achieving coordination in synchronous and asynchronous systems with crash, send-omission, and general omission failures. We indicate the systems in which coordination cannot be achieved and, when it can, analyze the computational complexity of optimally achieving it. In some cases, optimum solutions can be implemented in polynomial time, while in others they require NP-hard local computation. These results provide a thorough characterization of coordination and will thus aid researchers in determining the approach to take when attempting to achieve fault-tolerant coordination.
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M3 - Conference contribution
AN - SCOPUS:0026999440
SN - 0897914953
T3 - Proceedings of the Annual ACM Symposium on Principles of Distributed Computing
SP - 203
EP - 214
BT - Proceedings of the Annual ACM Symposium on Principles of Distributed Computing
A2 - Anon, null
PB - Publ by ACM
T2 - Proceedings of the 11th Annual ACM Symposium on Principles of Distributed Computing
Y2 - 10 August 1992 through 12 August 1992
ER -