Non-blocking atomic commit in asynchronous distributed systems with failure detectors |
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Authors: | Rachid Guerraoui |
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Affiliation: | (1) Communication Systems Department, Swiss Federal Institute of Technology, 1015 Lausanne, Switzerland (e-mail: Rachid.Guerraoui@epfl.ch), CH |
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Abstract: | This paper addresses the Non-Blocking Atomic Commit (NB-AC) problem in asynchronous distributed systems augmented with failure detectors. We first show that, in these systems, NB-AC and Consensus are incomparable. Roughly speaking, there is a failure detector that solves NB-AC but not Consensus and a failure detector that solves Consensus but not NB-AC. Then we introduce the Anonymously Perfect failure detector . We show that, to solve NB-AC, is necessary (while is not), whereas is sufficient when a majority of the processes are correct. We draw from our results some observations on the practical solvability of NB-AC. Received: August 2000 / Accepted: May 2001 |
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Keywords: | : Atomic commit – Consensus - Failure detection – Asynchrony – Lower bound |
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